From: Francois Fleuret Date: Sat, 27 Oct 2007 19:51:01 +0000 (+0200) Subject: Initial commit X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=commitdiff_plain;ds=inline;h=ba46b057f3e2613a86f2dea7fa8022990482c735;p=universe.git Initial commit --- ba46b057f3e2613a86f2dea7fa8022990482c735 diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..10669ed --- /dev/null +++ b/Makefile @@ -0,0 +1,49 @@ + +#============================================================================# +# This program is free software; you can redistribute it and/or # +# modify it under the terms of the GNU General Public License # +# version 2 as published by the Free Software Foundation. # +# # +# This program is distributed in the hope that it will be useful, but # +# WITHOUT ANY WARRANTY; without even the implied warranty of # +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # +# General Public License for more details. # +# # +# Written and (C) by François Fleuret # +# Contact for comments & bug reports # +#============================================================================# + +# CXX=g++-3.3 + +ifeq ($(DEBUG),yes) + CXXFLAGS = -Wall -g -DDEBUG +else + # Optimized compilation +# CXXFLAGS = -Wall -g -O3 -pg --coverage + CXXFLAGS = -Wall -g -O3 +endif + +LDFLAGS = -L/usr/X11R6/lib/ + +TASK_SRC = dummy.cc move_square.cc hit_shape.cc +TASK_OBJ = $(TASK_SRC:.cc=.task) + +all: main TAGS $(TASK_OBJ) + +TAGS: *.cc *.h + etags *.cc *.h + +main: main.o misc.o simple_window.o universe.o polygon.o map.o \ + task.o retina.o manipulator.o approximer.o intelligence.o + $(CXX) -lX11 $(CXXFLAGS) -o $@ $^ $(LDFLAGS) + +%.task: %.cc misc.o universe.o polygon.o map.o task.o manipulator.o + $(CXX) $(CXXFLAGS) -shared -Wl,-soname,$@ -o $@ $^ + +Makefile.depend: *.h *.cc Makefile + $(CC) -M *.cc > Makefile.depend + +clean: + \rm main *.o *.task Makefile.depend + +-include Makefile.depend diff --git a/README.txt b/README.txt new file mode 100644 index 0000000..9bcc6d7 --- /dev/null +++ b/README.txt @@ -0,0 +1,15 @@ + + - move square, with obstacle, with a few of them, with a few an only + some bring rewards. + + - can move an object only indirectly (i.e. reward when blue square + reach a certain location, but penalty if blue square is touched) + + - copy an arrangements of objects on the other side of the world + + - move an arrangement of objects in the same order + + - avoid moving objects + + - reward if an object touch another one of a specified shape or + color, whatever its location diff --git a/approximer.cc b/approximer.cc new file mode 100644 index 0000000..c0d0577 --- /dev/null +++ b/approximer.cc @@ -0,0 +1,180 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +// $Id: approximer.cc,v 1.13 2006-12-22 23:13:46 fleuret Exp $ + +#include "approximer.h" + +MappingApproximer::MappingApproximer(int max_nb_weak_learners) : + _max_nb_weak_learners(max_nb_weak_learners), + _nb_weak_learners(0), + _indexes(new int[_max_nb_weak_learners]), + _thresholds(new scalar_t[_max_nb_weak_learners]), + _weights(new scalar_t[_max_nb_weak_learners]), + _nb_samples(-1), + _input_sorted_index(0), + _outputs_on_samples(0) { } + +MappingApproximer::~MappingApproximer() { + delete[] _indexes; + delete[] _thresholds; + delete[] _weights; + delete[] _outputs_on_samples; +} + +void MappingApproximer::load(istream &is) { + is.read((char *) &_nb_weak_learners, sizeof(_nb_weak_learners)); + if(_nb_weak_learners > _max_nb_weak_learners) { + cerr << "Number of weak learners missmatch." << endl; + exit(1); + } + is.read((char *) _indexes, _nb_weak_learners * sizeof(int)); + is.read((char *) _thresholds, _nb_weak_learners * sizeof(scalar_t)); + is.read((char *) _weights, _nb_weak_learners * sizeof(scalar_t)); +} + +void MappingApproximer::save(ostream &os) { + os.write((char *) &_nb_weak_learners, sizeof(_nb_weak_learners)); + os.write((char *) _indexes, _nb_weak_learners * sizeof(int)); + os.write((char *) _thresholds, _nb_weak_learners * sizeof(scalar_t)); + os.write((char *) _weights, _nb_weak_learners * sizeof(scalar_t)); +} + +void MappingApproximer::set_learning_input(int input_size, int nb_samples, + scalar_t *input, scalar_t *sample_weights) { + + _input_size = input_size; + _input = input; + _sample_weights = sample_weights; + if(_nb_samples != nb_samples ){ + _nb_samples = nb_samples; + delete[] _outputs_on_samples; + delete[] _input_sorted_index; + _outputs_on_samples = new scalar_t[_nb_samples]; + _input_sorted_index = new int[_input_size * _nb_samples]; + } + for(int t = 0; t < _nb_samples; t++) _outputs_on_samples[t] = 0.0; + + for(int n = 0; n < _input_size; n++) { + Couple couples[_nb_samples]; + for(int s = 0; s < _nb_samples; s++) { + couples[s].index = s; + couples[s].value = _input[s * _input_size + n]; + } + qsort(couples, _nb_samples, sizeof(Couple), compare_couple); + for(int s = 0; s < _nb_samples; s++) + _input_sorted_index[n * _nb_samples + s] = couples[s].index; + } + +} + +void MappingApproximer::learn_one_step(scalar_t *target) { + scalar_t delta[_nb_samples], s_delta = 0.0, s_weights = 0; + + for(int s = 0; s < _nb_samples; s++) { + delta[s] = _outputs_on_samples[s] - target[s]; + s_delta += _sample_weights[s] * delta[s]; + s_weights += _sample_weights[s]; + } + + scalar_t best_z = 0, z, prev, val; + int *i; + + for(int n = 0; n < _input_size; n++) { + z = s_delta; + i = _input_sorted_index + n * _nb_samples; + prev = _input[(*i) * _input_size + n]; + for(int s = 1; s < _nb_samples; s++) { + z -= 2 * _sample_weights[*i] * delta[*i]; + i++; + val = _input[(*i) * _input_size + n]; + if(val > prev && abs(z) > abs(best_z)) { + _thresholds[_nb_weak_learners] = (val + prev)/2; + _indexes[_nb_weak_learners] = n; + _weights[_nb_weak_learners] = - z / s_weights; + best_z = z; + } + prev = val; + } + } + + if(best_z == 0) return; + + // Update the responses on the samples + for(int s = 0; s < _nb_samples; s++) { + if(_input[s * _input_size + _indexes[_nb_weak_learners]] >= _thresholds[_nb_weak_learners]) + _outputs_on_samples[s] += _weights[_nb_weak_learners]; + else + _outputs_on_samples[s] -= _weights[_nb_weak_learners]; + } + + _nb_weak_learners++; +} + +scalar_t MappingApproximer::predict(scalar_t *input) { + scalar_t r = 0; + for(int w = 0; w < _nb_weak_learners; w++) + if(input[_indexes[w]] >= _thresholds[w]) + r += _weights[w]; + else + r -= _weights[w]; + return r; +} + +void test_approximer() { +// const int nb_samples = 1000, nb_weak_learners = 100; +// MappingApproximer approximer(nb_weak_learners); +// scalar_t input[nb_samples], output[nb_samples], weight[nb_samples]; +// for(int n = 0; n < nb_samples; n++) { +// input[n] = scalar_t(n * 2 * M_PI)/scalar_t(nb_samples); +// output[n] = sin(input[n]); +// weight[n] = (drand48() < 0.5) ? 1.0 : 0.0; +// } +// approximer.set_learning_input(1, nb_samples, input, weight); +// for(int w = 0; w < nb_weak_learners; w++) { +// approximer.learn_one_step(output); +// scalar_t e = 0; +// for(int n = 0; n < nb_samples; n++) +// e += weight[n] * sq(output[n] - approximer._outputs_on_samples[n]); +// cerr << w << " " << e << endl; +// } +// for(int n = 0; n < nb_samples; n++) { +// cout << input[n] << " " << approximer._outputs_on_samples[n] << endl; +// } + + const int dim = 5, nb_samples = 1000, nb_weak_learners = 100; + MappingApproximer approximer(nb_weak_learners); + scalar_t input[nb_samples * dim], output[nb_samples], weight[nb_samples]; + for(int n = 0; n < nb_samples; n++) { + scalar_t s = 0; + for(int d = 0; d < dim; d++) { + input[n * dim + d] = drand48(); + s += (d+1) * input[n * dim + d]; + } + output[n] = s; + weight[n] = (drand48() < 0.5) ? 1.0 : 0.0; + } + approximer.set_learning_input(dim, nb_samples, input, weight); + for(int w = 0; w < nb_weak_learners; w++) { + approximer.learn_one_step(output); + scalar_t e = 0; + for(int n = 0; n < nb_samples; n++) + e += weight[n] * sq(output[n] - approximer._outputs_on_samples[n]); + cerr << w << " " << e << endl; + } + for(int n = 0; n < nb_samples; n++) { + cout << output[n] << " " << approximer._outputs_on_samples[n] << endl; + } +} diff --git a/approximer.h b/approximer.h new file mode 100644 index 0000000..01d8a89 --- /dev/null +++ b/approximer.h @@ -0,0 +1,49 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +// $Id: approximer.h,v 1.6 2006-07-22 12:34:11 fleuret Exp $ + +#ifndef APPROXIMER_H +#define APPROXIMER_H + +#include +#include + +using namespace std; + +#include "misc.h" + +class MappingApproximer { + int _max_nb_weak_learners, _nb_weak_learners; + int *_indexes; + scalar_t *_thresholds; + scalar_t *_weights; + int _input_size, _nb_samples; + scalar_t *_input, *_sample_weights; + int *_input_sorted_index; +public: + scalar_t *_outputs_on_samples; + MappingApproximer(int size); + ~MappingApproximer(); + void load(istream &is); + void save(ostream &os); + void set_learning_input(int input_size, int nb_samples, scalar_t *input, scalar_t *sample_weights); + void learn_one_step(scalar_t *target); + scalar_t predict(scalar_t *input); +}; + +void test_approximer(); + +#endif diff --git a/art.cc b/art.cc new file mode 100644 index 0000000..d71f266 --- /dev/null +++ b/art.cc @@ -0,0 +1,71 @@ +#include +#include +#include +#include +#include +#include +#include +#include + +using namespace std; + +#include "misc.h" +// #include "task.h" +// #include "simple_window.h" +#include "universe.h" +// #include "retina.h" +// #include "manipulator.h" + +int main(int argc, char **argv) { + + { + nice(19); + scalar_t xs[] = { -28, 28, 28, -28 }; + scalar_t ys[] = { -28, -28, 28, 28 }; + Universe universe(1000); + int w = 20, h = 20; + Polygon *p; + for(int x = 0; x < w; x++) for(int y = 0; y < h; y++) { + p = new Polygon(1.0, 1.0, 1.0, 0.0, xs, ys, 4); + p->set_position(30 + 60 * x, 30 + 60 * y, 0); + p->set_speed(0, 0, 0); + universe.add_polygon(p); + } + + const int nb_projectiles = 15; + Polygon *projectiles[nb_projectiles]; + + for(int b = 0; b < nb_projectiles; b++) { + + int ne = 100; + projectiles[b] = new Polygon(1.0, 0.0, 0.25, 1.0, 0, 0, ne); + for(int e = 0; e < ne; e++) { + scalar_t alpha = 2 * M_PI * scalar_t(e) / scalar_t(ne); + projectiles[b]->set_vertex(e, 200 + 20 * cos(alpha), 200 + 20 * sin(alpha)); + } + projectiles[b]->set_position(67 + 60 * b, -60, 0); + +// scalar_t xs[] = { -10, 10, 10, -10 }; +// scalar_t ys[] = { -80, -80, 80, 80 }; +// projectiles[b] = new Polygon(1.0, 0.0, 0.25, 1.0, xs, ys, 4); +// projectiles[b]->set_position(67 + 60 * 6, -60, 0); + + projectiles[b]->set_speed(0, 0, 0); + universe.add_polygon(projectiles[b]); + } + + for(int n = 0; n < 20000; n++) { + if(n%100 == 0) cout << n << endl; + for(int b = 0; b < nb_projectiles; b++) + projectiles[b]->apply_force(0.01, p->_center_x, p->_center_y, 1, 5); +// projectiles[b]->apply_force(0.01, p->_center_x, p->_center_y, 1, 10); + universe.update(0.01); + } + + for(int n = 0; n < 10000; n++) universe.update(0.01); + + ofstream os("/tmp/universe.fig"); + universe.print_fig(os); + exit(0); + } +} diff --git a/dummy.cc b/dummy.cc new file mode 100644 index 0000000..8173717 --- /dev/null +++ b/dummy.cc @@ -0,0 +1,114 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +// $Id: dummy.cc,v 1.16 2006-07-21 08:28:27 fleuret Exp $ + +#include "task.h" +#include "universe.h" +#include "manipulator.h" + +class Dummy : public Task { +public: + + virtual char *name() { return "DUMMY"; } + + virtual int nb_degrees() { return 1; } + + virtual int width() { return 600; } + + virtual int height() { return 700; } + + virtual void init(Universe *universe, int degree) { + Polygon *p; + scalar_t width = 80, height = 80; + scalar_t deltax = 100, deltay = 100; + + for(int k = 0; k < 4; k++) { + scalar_t x0 = k * deltax; + scalar_t y0 = 0; + p = new Polygon(1.0, 1.0, scalar_t(k)/scalar_t(4), 0.0, 0, 0, 4); + p->set_vertex(0, 0, 0); + p->set_vertex(1, width, 0);; + p->set_vertex(2, width, height); + p->set_vertex(3, 0, height); + p->set_position(x0 + deltax/2, y0 + deltay/2, 0); + p->set_speed(0, 0, 0); + universe->initialize(p); + universe->add_polygon(p); + } + + for(int k = 0; k < 2; k++) { + scalar_t x0 = deltax + k * deltax * 2; + scalar_t y0 = deltay; + p = new Polygon(1.0, scalar_t(k)/scalar_t(2), 1.0, 0.0, 0, 0, 4); + p->set_vertex(0, 0, 0); + p->set_vertex(1, width + deltax, 0);; + p->set_vertex(2, width + deltax, height); + p->set_vertex(3, 0, height); + p->set_position(x0, y0 + deltay/2, 0); + p->set_speed(0, 0, 0); + universe->initialize(p); + universe->add_polygon(p); + } + + scalar_t x0 = deltax; + scalar_t y0 = 2 * deltay; + p = new Polygon(1.0, 1.0, 1.0, 0.0, 0, 0, 4); + p->set_vertex(0, 0, 0); + p->set_vertex(1, width + 3 * deltax, 0);; + p->set_vertex(2, width + 3 * deltax, height); + p->set_vertex(3, 0, height); + p->set_position(x0 + deltax, y0 + deltay/2, 0); + p->set_speed(0, 0, 0); + universe->initialize(p); + universe->add_polygon(p); + + p = new Polygon(1.0, 0.8, 0.2, 0.8, 0, 0, 8); + p->set_vertex(0, 0.0, 0.0); + p->set_vertex(1, 180.0, 0.0); + p->set_vertex(2, 180.0, 220.0); + p->set_vertex(3, 0.0, 220.0); + p->set_vertex(4, 0.0, 180.0); + p->set_vertex(5, 140.0, 180.0); + p->set_vertex(6, 140.0, 40.0); + p->set_vertex(7, 0.0, 40.0); + p->set_position(120, 420, 0); + p->set_speed(0, 0, 0); + universe->initialize(p); + universe->add_polygon(p); + + int ne = 25; + p = new Polygon(1.0, 0.0, 0.25, 1.0, 0, 0, ne); + for(int e = 0; e < ne; e++) { + scalar_t alpha = 2 * M_PI * scalar_t(e) / scalar_t(ne); + p->set_vertex(e, 200 + 50 * cos(alpha), 200 + 70 * sin(alpha)); + } + p->set_position(400, 400, 0); + p->set_speed(0, 0, 0); + universe->initialize(p); + universe->add_polygon(p); + } + + virtual void update(scalar_t dt, Universe *universe, Manipulator *manipulator) { } + + virtual scalar_t reward(Universe *universe, Manipulator *manipulator) { return 0.0; } + + virtual void draw(SimpleWindow *window) { } + +}; + +extern "C" Task *new_task() { + return new Dummy(); +} diff --git a/hit_shape.cc b/hit_shape.cc new file mode 100644 index 0000000..66cf76d --- /dev/null +++ b/hit_shape.cc @@ -0,0 +1,108 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +// $Id: hit_shape.cc,v 1.5 2006-07-23 21:14:42 fleuret Exp $ + +#include "task.h" +#include "universe.h" +#include "manipulator.h" + +class MoveSquare : public Task { + + int _square_size; + int _nb_shapes; + Polygon **_shapes; + bool *_targets; + const static int world_width = 500; + const static int world_height = 500; + +public: + + virtual char *name() { return "HIT_SQUARE"; } + + virtual int nb_degrees() { return 1; } + + virtual int width() { return world_width; } + + virtual int height() { return world_height; } + + void scramble(Universe *universe) { + scalar_t margin = sqrt(2)/2 * _square_size; + scalar_t x[] = { -_square_size/2, _square_size/2, _square_size/2, -_square_size/2 }; + scalar_t y[] = { -_square_size/2, -_square_size/2, _square_size/2, _square_size/2 }; + + universe->clear(); + + for(int s = 0; s < _nb_shapes; s++) _shapes[s] = 0; + + int s = 0; + for(int k = 0; k < _nb_shapes * 10 && s < _nb_shapes; k++) { + Polygon *p; +// bool red = drand48() < 0.2; + bool red = 1-s%2; + + if(red) p = new Polygon(0.5, 1.0, 0.0, 0.0, x, y, 4); + else p = new Polygon(0.5, 1.0, 1.0, 0.0, x, y, 4); + + p->set_position(margin + (world_width - 2 * margin) * drand48(), + margin + (world_height - 2 * margin) * drand48(), + 2 * M_PI * drand48()); + p->set_speed(0, 0, 0); + universe->initialize(p); + p->_nailed = true; + if(universe->collide(p)) delete p; + else { + universe->add_polygon(p); + _shapes[s] = p; + _targets[s] = red; + s++; + } + } + } + + virtual void init(Universe *universe, int degree) { + _square_size = 150; + _nb_shapes = 2; + _shapes = new Polygon *[_nb_shapes]; + _targets = new bool[_nb_shapes]; + scramble(universe); + } + + virtual void update(scalar_t dt, Universe *universe, Manipulator *manipulator) { } + + virtual scalar_t reward(Universe *universe, Manipulator *manipulator) { + if(manipulator->grabbing()) { + for(int k = 0; k < _nb_shapes; k++) if(_shapes[k] == manipulator->grabbing()) { + bool hit = _targets[k]; + if(hit & drand48() < 0.25) { + manipulator->force_release(); + scramble(universe); + return 1.0; + } +// manipulator->force_release(); +// scramble(universe); +// if(hit) return 1.0; +// else return -1.0; + } + } + return 0.0; + } + + virtual void draw(SimpleWindow *window) { } +}; + +extern "C" Task *new_task() { + return new MoveSquare(); +} diff --git a/intelligence.cc b/intelligence.cc new file mode 100644 index 0000000..53bdab8 --- /dev/null +++ b/intelligence.cc @@ -0,0 +1,207 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +// $Id: intelligence.cc,v 1.34 2006-12-18 15:01:09 fleuret Exp $ + +#include "intelligence.h" + +Intelligence::Intelligence(Map *input, + Manipulator *manipulator, + int max_memory_tick, + int nb_weak_learners) : + _nb_actions(manipulator->nb_actions()), + _input(input), + _manipulator(manipulator), + _max_memory_tick(max_memory_tick), + _memory_tick(0), + _memory(new scalar_t[_max_memory_tick * _input->nb_parameters]), + _rewards(new scalar_t[_max_memory_tick]), + _actions(new int[_max_memory_tick]), + _q_predictors(new MappingApproximer *[manipulator->nb_actions()]), + _nb_weak_learners(nb_weak_learners) { + for(int a = 0; a < _nb_actions; a++) + _q_predictors[a] = new MappingApproximer(_nb_weak_learners); +} + +Intelligence::~Intelligence() { + for(int a = 0; a < _nb_actions; a++) delete _q_predictors[a]; + delete[] _q_predictors; + delete[] _memory; + delete[] _rewards; + delete[] _actions; +} + +void Intelligence::load(istream &is) { + int na, np; + + is.read((char *) &na, sizeof(int)); + is.read((char *) &np, sizeof(int)); + + if(na != _nb_actions || np != _input->nb_parameters) { + cerr << "Missmatch between the number of actions or input map size and the saved memory." << endl; + exit(1); + } + + is.read((char *) &_memory_tick, sizeof(int)); + + if(_memory_tick > _max_memory_tick) { + cerr << "Can not load, too large memory dump." << endl; + exit(1); + } + + is.read((char *) _actions, sizeof(int) * _memory_tick); + is.read((char *) _rewards, sizeof(scalar_t) * _memory_tick); + is.read((char *) _memory, sizeof(scalar_t) * _input->nb_parameters * _memory_tick); + + for(int a = 0; a < _nb_actions; a++) _q_predictors[a]->load(is); +} + +void Intelligence::save(ostream &os) { + os.write((char *) &_nb_actions, sizeof(_nb_actions)); + os.write((char *) &_input->nb_parameters, sizeof(int)); + os.write((char *) &_memory_tick, sizeof(int)); + os.write((char *) _actions, sizeof(int) * _memory_tick); + os.write((char *) _rewards, sizeof(scalar_t) * _memory_tick); + os.write((char *) _memory, sizeof(scalar_t) * _input->nb_parameters * _memory_tick); + + for(int a = 0; a < _nb_actions; a++) _q_predictors[a]->save(os); +} + +void Intelligence::update(int last_action, scalar_t last_reward) { + if(_memory_tick == _max_memory_tick) abort(); + ASSERT(last_action >= 0 && last_action < _nb_actions, "Action number out of bounds."); + _actions[_memory_tick] = last_action; + _rewards[_memory_tick] = last_reward; + int k = _memory_tick * _input->nb_parameters; + for(int p = 0; p < _input->nb_parameters; p++) _memory[k++] = _input->parameters[p]; + _memory_tick++; +} + +void Intelligence::save_memory(char *filename) { + ofstream out(filename); + + if(out.fail()) { + cerr << "Can not save to " << filename << "." << endl; + exit(1); + } + + out.write((char *) &_input->nb_parameters, sizeof(int)); + out.write((char *) &_memory_tick, sizeof(int)); + out.write((char *) _actions, sizeof(int) * _memory_tick); + out.write((char *) _rewards, sizeof(scalar_t) * _memory_tick); + out.write((char *) _memory, sizeof(scalar_t) * _input->nb_parameters * _memory_tick); + out.flush(); +} + +void Intelligence::load_memory(char *filename) { + ifstream in(filename); + + if(in.fail()) { + cerr << "Can not load from " << filename << "." << endl; + exit(1); + } + + int np; + in.read((char *) &np, sizeof(int)); + in.read((char *) &_memory_tick, sizeof(int)); + + if(np != _input->nb_parameters) { + cerr << "Missmatch between the input map size and the saved memory." << endl; + exit(1); + } + + if(_memory_tick > _max_memory_tick) { + cerr << "Can not load, too large memory dump." << endl; + exit(1); + } + + in.read((char *) _actions, sizeof(int) * _memory_tick); + in.read((char *) _rewards, sizeof(scalar_t) * _memory_tick); + in.read((char *) _memory, sizeof(scalar_t) * _input->nb_parameters * _memory_tick); +} + +void Intelligence::learn(scalar_t proportion_for_training) { + scalar_t **sample_weigths; + int nb_train_ticks = int(_memory_tick * proportion_for_training); + sample_weigths = new scalar_t *[_nb_actions]; + for(int a = 0; a < _nb_actions; a++) { + sample_weigths[a] = new scalar_t[_memory_tick]; + for(int t = 0; t < _memory_tick; t++) + if(_actions[t] == a && t < nb_train_ticks) sample_weigths[a][t] = 1.0; + else sample_weigths[a][t] = 0.0; + _q_predictors[a]->set_learning_input(_input->nb_parameters, + _memory_tick, + _memory, + sample_weigths[a]); + } + + scalar_t target[_memory_tick]; + for(int t = 0; t < _memory_tick - 1; t++) target[t] = _rewards[t]; + + for(int u = 0; u < _nb_weak_learners; u++) { + + for(int t = 0; t < _memory_tick - 1; t++) { + scalar_t s = 0, u; + for(int a = 0; a < _nb_actions; a++) { + u = _q_predictors[a]->_outputs_on_samples[t+1]; + if(u > s) s = u; + } + const scalar_t lambda = 0.0; + target[t] = lambda * s + _rewards[t]; + } + + for(int a = 0; a < _nb_actions; a++) _q_predictors[a]->learn_one_step(target); + + { + scalar_t e_train[_nb_actions]; + for(int a = 0; a < _nb_actions; a++) e_train[a] = 0; + for(int t = 0; t < nb_train_ticks; t++) + e_train[_actions[t]] += sq(_q_predictors[_actions[t]]->_outputs_on_samples[t] - target[t]); + cout << "ERROR_TRAIN " << u+1; + for(int a = 0; a < _nb_actions; a++) cout << " " << e_train[a]; + cout << endl; + } + + { + scalar_t e_test[_nb_actions]; + for(int a = 0; a < _nb_actions; a++) e_test[a] = 0; + for(int t = nb_train_ticks; t < _memory_tick; t++) + e_test[_actions[t]] += sq(_q_predictors[_actions[t]]->_outputs_on_samples[t] - target[t]); + cout << "ERROR_TEST " << u+1; + for(int a = 0; a < _nb_actions; a++) cout << " " << e_test[a]; + cout << endl; + } + } + + for(int a = 0; a < _nb_actions; a++) delete[] sample_weigths[a]; + delete[] sample_weigths; +} + +int Intelligence::best_action() { + int max_a = -1; + scalar_t q, max_q; + cout << "ACTION_SCORES"; + for(int a = 0; a < _nb_actions; a++) { + q = _q_predictors[a]->predict(_input->parameters); + cout << " " << q; + if(a == 0 || q > max_q) { + max_a = a; + max_q = q; + } + } + cout << endl; + return max_a; +} + diff --git a/intelligence.h b/intelligence.h new file mode 100644 index 0000000..0444e34 --- /dev/null +++ b/intelligence.h @@ -0,0 +1,41 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +// $Id: intelligence.h,v 1.20 2006-07-26 06:52:30 fleuret Exp $ + +#include "map.h" +#include "approximer.h" +#include "manipulator.h" + +class Intelligence { + int _nb_actions; + Map *_input; + Manipulator *_manipulator; + int _max_memory_tick, _memory_tick; + scalar_t *_memory, *_rewards; + int *_actions; + MappingApproximer **_q_predictors; + int _nb_weak_learners; +public: + Intelligence(Map *input, Manipulator *manipulator, int max_memory_tick, int nb_weak_learners); + ~Intelligence(); + void load(istream &is); + void save(ostream &os); + void update(int last_action, scalar_t last_reward); + void save_memory(char *filename); + void load_memory(char *filename); + void learn(scalar_t proportion_for_training); + int best_action(); +}; diff --git a/main.cc b/main.cc new file mode 100644 index 0000000..cb94b7f --- /dev/null +++ b/main.cc @@ -0,0 +1,482 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +#include +#include +#include +#include +#include +#include +#include +#include + +using namespace std; + +#include "misc.h" +#include "task.h" +#include "simple_window.h" +#include "universe.h" +#include "retina.h" +#include "manipulator.h" +#include "intelligence.h" + +// To train +// ./main --task hit_shape.task 0 --action-mode=random --nb-ticks=5000 --proportion-for-training=0.5 --save-file=dump.mem --no-window + +// To test +// ./main --task hit_shape.task 0 --action-mode=intelligent --load-file=dump.mem + +////////////////////////////////////////////////////////////////////// + +void check_opt(int argc, char **argv, int n_opt, int n, char *help) { + if(n_opt + n >= argc) { + cerr << "Missing argument for " << argv[n_opt] << "." << endl; + cerr << "Expecting " << help << "." << endl; + exit(1); + } +} + +void print_help_and_exit(int e) { + cout << "$Id: main.cc,v 1.89 2007-06-16 13:51:53 fleuret Exp $" << endl; + cout << endl; + cout << "Arguments:" << endl; + cout << " --no-window" << endl; + cout << " --nb-ticks=" << endl; + cout << " --nb-training-iterations=" << endl; + cout << " --load-file=" << endl; + cout << " --save-file=" << endl; + cout << " --proportion-for-training=" << endl; + cout << " --action-mode=" << endl; + cout << " --task " << endl; + exit(e); +} + +////////////////////////////////////////////////////////////////////// + +int main(int argc, char **argv) { + + const int buffer_size = 256; + char intelligence_load_file[buffer_size] = "", intelligence_save_file[buffer_size] = ""; + + Task *task = 0; + int task_degree = 0; + + int nb_ticks = 10000; + int nb_training_iterations = 10; + scalar_t proportion_for_training = -1; + + Polygon *grabbed_polygon = 0; + scalar_t relative_grab_x = 0, relative_grab_y = 0; + + bool quit = false; + bool press_shift = false; + enum { IDLE, RANDOM, INTELLIGENT } action_mode = IDLE; + bool got_event = true; + int current_action = 0; + + scalar_t last_hand_x = 0, last_hand_y = 0; + Polygon *last_grabbing = 0; + bool no_window = false; + + ////////////////////////////////////////////////////////////////////// + // Parsing the shell arguments + ////////////////////////////////////////////////////////////////////// + + int i = 1; + while(i < argc) { + if(argc == 1 || strcmp(argv[i], "--help") == 0) print_help_and_exit(0); + + else if(strcmp(argv[i], "--test") == 0) { + test_approximer(); + exit(0); + } + + else if(strcmp(argv[i], "--task") == 0) { + check_opt(argc, argv, i, 2, " "); + if(task) { + cerr << "Can not load two tasks." << endl; + exit(1); + } + task = load_task(argv[i+1]); + task_degree = atoi(argv[i+2]); + i += 3; + + } else if(strncmp(argv[i], "--", 2) == 0) { + char variable_name[buffer_size] = "", variable_value[buffer_size] = ""; + char *o = argv[i]+2, *s = variable_name, *u = variable_value; + while(*o && *o != '=') *s++ = *o++; + if(*o) { + o++; + while(*o) *u++ = *o++; + } + + if(strcmp(variable_name, "nb-ticks") == 0) + nb_ticks = atoi(variable_value); + else if(strcmp(variable_name, "nb-training-iterations") == 0) + nb_training_iterations = atoi(variable_value); + else if(strcmp(variable_name, "proportion-for-training") == 0) + proportion_for_training = atof(variable_value); + else if(strcmp(variable_name, "no-window") == 0) + no_window = true; + else if(strcmp(variable_name, "save-file") == 0) + strcpy(intelligence_save_file, variable_value); + else if(strcmp(variable_name, "load-file") == 0) + strcpy(intelligence_load_file, variable_value); + else if(strcmp(variable_name, "action-mode") == 0) { + if(strcmp(variable_value, "idle") == 0) action_mode = IDLE; + else if(strcmp(variable_value, "random") == 0) action_mode = RANDOM; + else if(strcmp(variable_value, "intelligent") == 0) action_mode = INTELLIGENT; + else { + cerr << "The only known modes are idle, random and intelligent" << endl; + exit(1); + } + } else { + cerr << "Unknown option " << argv[i] << endl; + print_help_and_exit(1); + } + i++; + } else { + cerr << "Unknown option " << argv[i] << endl; + print_help_and_exit(1); + } + } + + cout << "FlatLand, a toy universe for goal-planning experiments." << endl; + cout << "$Id: main.cc,v 1.89 2007-06-16 13:51:53 fleuret Exp $" << endl; + + if(!task) { + task = load_task("dummy.task"); + task_degree = 0; + } + + cout << "Loaded task " << task->name() + << " with degree " << task_degree << "/" << task->nb_degrees() + << endl; + + if(task_degree < 0 || task_degree >= task->nb_degrees()) { + cout << "Invalid degree: " << task_degree << "." << endl; + exit(1); + } + + ////////////////////////////////////////////////////////////////////// + // Various initializations + ////////////////////////////////////////////////////////////////////// + + Universe universe(100, task->width(), task->height()); + task->init(&universe, task_degree); + Retina retina(&universe); + Manipulator manipulator(task); + manipulator.force_move(task->width()/2, task->height()/2); + retina.set_location(manipulator.hand_x(), manipulator.hand_y()); + + SimpleWindow *window_main = 0, *window_brain = 0; + + int winfd = -1; + + MapConcatener sensory_map(2); + sensory_map.add_map(&retina); + sensory_map.add_map(&manipulator); + sensory_map.init(); + + MapExpander expanded_map(1000); + expanded_map.set_input(&sensory_map); + expanded_map.init(); + + Intelligence intelligence(&expanded_map, &manipulator, nb_ticks + 1, nb_training_iterations); + intelligence.update(0, 0.0); + + if(intelligence_load_file[0]) { + cout << "Loading from " << intelligence_load_file << " ... " ; + cout.flush(); + ifstream in(intelligence_load_file); + if(in.fail()) { + cerr << "error reading " << intelligence_load_file << "." << endl; + exit(1); + } + intelligence.load(in); + cout << "done." << endl ; + } + + if(!no_window) { + window_main = new SimpleWindow("Universe (main window)", 4, 4, task->width(), task->height()); + winfd = window_main->file_descriptor(); + window_main->map(); + cout << "When the main window has the focus, press `q' to quit and click and drag to move" << endl + << "objects." << endl; + window_brain = new SimpleWindow("Universe (brain)", + 12 + task->width(), 4, + retina.width(), retina.height() + manipulator.parameter_height()); + window_brain->map(); + } else { + cout << "Started without windows." << endl; + } + + int tick = 0; + time_t last_t = 0; + scalar_t sum_reward = 0; + + ////////////////////////////////////////////////////////////////////// + // The main loop + ////////////////////////////////////////////////////////////////////// + + while(!quit && tick != nb_ticks) { + + int r; + fd_set fds; + + + if(window_main) { + struct timeval tv; + FD_ZERO (&fds); + FD_SET (winfd, &fds); + tv.tv_sec = 0; + tv.tv_usec = 5000; // 0.05s + r = select(winfd + 1, &fds, 0, 0, &tv); + } else r = 0; + + time_t t = time(0); + + if(t > last_t) { + last_t = t; + cout << tick << " " << sum_reward << " \r"; cout.flush(); + } + + if(r == 0) { // No window event, thus it's the clock tick + + int nb_it = 10; + + bool changed = got_event; + got_event = false; + + switch(action_mode) { + case IDLE: + break; + case RANDOM: + current_action = manipulator.random_action(); + break; + case INTELLIGENT: + current_action = intelligence.best_action(); + // if(drand48() < 0.5) current_action = intelligence.best_action(); + // else current_action = manipulator.random_action(); + break; + } + + manipulator.do_action(current_action); + + scalar_t dt = 1.0/scalar_t(nb_it); + for(int k = 0; k < nb_it; k++) { + manipulator.update(dt, &universe); + task->update(dt, &universe, &manipulator); + changed |= universe.update(dt); + } + + tick++; + + changed |= manipulator.hand_x() != last_hand_x || + manipulator.hand_y() != last_hand_y || + manipulator.grabbing() != last_grabbing; + + scalar_t reward = task->reward(&universe, &manipulator); + sum_reward += abs(reward); + intelligence.update(current_action, reward); + expanded_map.update_map(); + + if(changed) { + last_hand_x = manipulator.hand_x(); + last_hand_y = manipulator.hand_y(); + last_grabbing = manipulator.grabbing(); + retina.set_location(manipulator.hand_x(), manipulator.hand_y()); + + if(window_main) { + window_main->color(0.0, 0.0, 0.0); + window_main->fill(); + task->draw(window_main); + universe.draw(window_main); + manipulator.draw_on_universe(window_main); + retina.draw_on_universe(window_main); + + if(grabbed_polygon) { + int x, y, delta = 3; + x = int(grabbed_polygon->absolute_x(relative_grab_x, relative_grab_y)); + y = int(grabbed_polygon->absolute_y(relative_grab_x, relative_grab_y)); + window_main->color(0.0, 0.0, 0.0); + window_main->draw_line(x - delta, y, x + delta, y); + window_main->draw_line(x, y - delta, x, y + delta); + } + + window_main->show(); + + if(window_brain) { + retina.draw_parameters(0, 0, window_brain); + manipulator.draw_parameters(0, retina.height() + 1, window_brain); + window_brain->show(); + } + } + } + + } else if(r > 0) { // We got window events, let's process them + + got_event = true; + + if(FD_ISSET(winfd, &fds)) { + + SimpleEvent se; + + do { + se = window_main->event(); + + switch(se.type) { + + case SimpleEvent::MOUSE_CLICK_PRESS: + { + switch(se.button) { + + case 1: + if(press_shift) { + manipulator.force_move(se.x, se.y); + manipulator.do_action(Manipulator::ACTION_GRAB); + } else { + grabbed_polygon = universe.pick_polygon(se.x, se.y); + if(grabbed_polygon) { + relative_grab_x = grabbed_polygon->relative_x(se.x, se.y); + relative_grab_y = grabbed_polygon->relative_y(se.x, se.y); + } + } + break; + case 4: + { + Polygon *g = universe.pick_polygon(se.x, se.y); + if(g) g->_theta += M_PI/32; + } + break; + case 5: + { + Polygon *g = universe.pick_polygon(se.x, se.y); + if(g) g->_theta -= M_PI/32; + } + break; + } + } + break; + + case SimpleEvent::MOUSE_CLICK_RELEASE: + switch(se.button) { + case 1: + if(press_shift) manipulator.do_action(Manipulator::ACTION_RELEASE); + else grabbed_polygon = 0; + break; + default: + break; + } + + case SimpleEvent::MOUSE_MOTION: + { + if(press_shift) manipulator.force_move(se.x, se.y); + else { + if(grabbed_polygon) { + scalar_t xf, yf, force_x, force_y, f, fmax = 100; + xf = grabbed_polygon->absolute_x(relative_grab_x, relative_grab_y); + yf = grabbed_polygon->absolute_y(relative_grab_x, relative_grab_y); + force_x = se.x - xf; + force_y = se.y - yf; + f = sqrt(sq(force_x) + sq(force_y)); + if(f > fmax) { force_x = (force_x * fmax)/f; force_y = (force_y * fmax)/f; } + grabbed_polygon->apply_force(0.1, xf, yf, force_x, force_y); + } + } + break; + } + break; + + case SimpleEvent::KEY_PRESS: + { + if(strcmp(se.key, "q") == 0) quit = true; + else if(strcmp(se.key, "s") == 0) { + retina.save_as_ppm("/tmp/retina.ppm"); + cout << "Retina screen shot saved in /tmp/retina.ppm" << endl; + { + ofstream out("/tmp/universe.fig"); + universe.print_fig(out); + } + } + else if(strcmp(se.key, "Shift_L") == 0 || strcmp(se.key, "Shift_R") == 0) press_shift = true; + + else if(strcmp(se.key, "Up") == 0) manipulator.do_action(Manipulator::ACTION_MOVE_UP); + else if(strcmp(se.key, "Right") == 0) manipulator.do_action(Manipulator::ACTION_MOVE_RIGHT); + else if(strcmp(se.key, "Down") == 0) manipulator.do_action(Manipulator::ACTION_MOVE_DOWN); + else if(strcmp(se.key, "Left") == 0) manipulator.do_action(Manipulator::ACTION_MOVE_LEFT); + else if(strcmp(se.key, "g") == 0) manipulator.do_action(Manipulator::ACTION_GRAB); + else if(strcmp(se.key, "r") == 0) manipulator.do_action(Manipulator::ACTION_RELEASE); + + else if(strcmp(se.key, "space") == 0) { + switch(action_mode) { + case IDLE: + action_mode = RANDOM; + cout << "Switched to random mode" << endl; + break; + case RANDOM: + action_mode = INTELLIGENT; + cout << "Switched to intelligent mode" << endl; + break; + case INTELLIGENT: + cout << "Switched to idle mode" << endl; + action_mode = IDLE; + break; + } + } + + else cout << "Undefined key " << se.key << endl; + } + break; + + case SimpleEvent::KEY_RELEASE: + { + if(strcmp(se.key, "Shift_L") == 0 || strcmp(se.key, "Shift_R") == 0) press_shift = false; + } + break; + + default: + break; + + } + } while(se.type != SimpleEvent::NO_EVENT); + } else { + cerr << "Error on select: " << strerror(errno) << endl; + exit(1); + } + } + } + + if(proportion_for_training > 0) { + cout << "Learning ... "; cout.flush(); + intelligence.learn(proportion_for_training); + cout << "done." << endl; + } + + if(intelligence_save_file[0]) { + cout << "Saving to " << intelligence_save_file << endl; cout.flush(); + ofstream os(intelligence_save_file); + if(os.fail()) { + cerr << "error writing " << intelligence_save_file << "." << endl; + exit(1); + } + cout << "done." << endl; + intelligence.save(os); + } + + delete window_brain; + delete window_main; + +} diff --git a/manipulator.cc b/manipulator.cc new file mode 100644 index 0000000..b17da00 --- /dev/null +++ b/manipulator.cc @@ -0,0 +1,305 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +#include "manipulator.h" + +static const scalar_t force_break = 200; +static const scalar_t force_max = 50; +static const scalar_t hand_speed = 5; + +Manipulator::Manipulator(Task *task) : _touching_polygon(0), _current_polygon(0), + _grab_relative_x(0), _grab_relative_y(0), + _xmax(0), _ymax(0), + _hand_x(0), _hand_y(0), + _force_x(0), _force_y(0), + _grab(false), _release(false), + _current_action(ACTION_GRAB) { + Map::init(NB_DISCRETE_PARAMETERS + NB_CONTINUOUS_MAPS * continuous_map_size); + _xmax = task->width(); + _ymax = task->height(); + for(int m = - continuous_map_size; m <= continuous_map_size; m++) + _kernel_continuous_maps[m + continuous_map_size] = 2 * exp(-sq(m)/sq(continuous_map_size/9)) - 1; +} + +int Manipulator::nb_actions() { return NB_ACTIONS; } + +void Manipulator::do_action(int action) { + scalar_t prev_hand_x =_hand_x, prev_hand_y = _hand_y; + switch(action) { + case ACTION_IDLE: + break; + case ACTION_MOVE_RIGHT: + _hand_x += hand_speed; + if(_hand_x >= _xmax) { + _hand_x = prev_hand_x - hand_speed; + _current_action = ACTION_MOVE_LEFT; + } + break; + case ACTION_MOVE_LEFT: + _hand_x -= hand_speed; + if(_hand_x < 0) { + _hand_x = prev_hand_x + hand_speed; + _current_action = ACTION_MOVE_RIGHT; + } + break; + case ACTION_MOVE_DOWN: + _hand_y += hand_speed; + if(_hand_y >= _ymax) { + _hand_y = prev_hand_y - hand_speed; + _current_action = ACTION_MOVE_UP; + } + break; + case ACTION_MOVE_UP: + _hand_y -= hand_speed; + if(_hand_y < 0) { + _hand_y = prev_hand_y + hand_speed; + _current_action = ACTION_MOVE_DOWN; + } + break; + case ACTION_GRAB: + _grab = true; + break; + case ACTION_RELEASE: + _release = true; + break; + default: + cerr << "Unknown action number (" << action << ")" << endl; + abort(); + } +} + +void Manipulator::update_map() { + parameters[FEEL_TOUCHING_OBJECT] = (_touching_polygon ? +1 : -1); + parameters[FEEL_GRABBING_OBJECT] = (_current_polygon ? +1 : -1); + + int px = int(_hand_x * continuous_map_size / _xmax), + py = int(_hand_y * continuous_map_size / _ymax), + fx = int((continuous_map_size - 1) * (0.5 + 0.5 * _force_x / force_max)), + fy = int((continuous_map_size - 1) * (0.5 + 0.5 * _force_y / force_max)); + + ASSERT(fx >=0 && fx < continuous_map_size && fy >= 0 && fy < continuous_map_size, + "Discrete force sensations out of bounds"); + + for(int m = 0; m < continuous_map_size; m++) { + parameters[NB_DISCRETE_PARAMETERS + MAP_LOCATION_X * continuous_map_size + m] = + _kernel_continuous_maps[px - m + continuous_map_size]; + parameters[NB_DISCRETE_PARAMETERS + MAP_LOCATION_Y * continuous_map_size + m] = + _kernel_continuous_maps[py - m + continuous_map_size]; + parameters[NB_DISCRETE_PARAMETERS + MAP_RESISTANCE_X * continuous_map_size + m] = + _kernel_continuous_maps[fx - m + continuous_map_size]; + parameters[NB_DISCRETE_PARAMETERS + MAP_RESISTANCE_Y * continuous_map_size + m] = + _kernel_continuous_maps[fy - m + continuous_map_size]; + } +} + +void Manipulator::update(scalar_t dt, Universe *universe) { + _touching_polygon = universe->pick_polygon(_hand_x, _hand_y); + + if(!_current_polygon && _grab) { + _current_polygon = _touching_polygon; + if(_current_polygon) { + _grab_relative_x = _current_polygon->relative_x(_hand_x, _hand_y); + _grab_relative_y = _current_polygon->relative_y(_hand_x, _hand_y); + } + } + + if(_release) _current_polygon = 0; + + _grab = false; _release = false; + + if(_current_polygon) { + scalar_t xf = _current_polygon->absolute_x(_grab_relative_x, _grab_relative_y); + scalar_t yf = _current_polygon->absolute_y(_grab_relative_x, _grab_relative_y); + _force_x = (_hand_x - xf) * 10; + _force_y = (_hand_y - yf) * 10; + + scalar_t f = sqrt(sq(_force_x) + sq(_force_y)); + + if(f >= force_break) { + _current_polygon = false; + _force_x = 0; + _force_y = 0; + } else { + if(f >= force_max) { + _force_x *= (force_max/f); + _force_y *= (force_max/f); + } + _current_polygon->set_speed(0, 0, 0); + _current_polygon->apply_force(dt, xf, yf, _force_x, _force_y); + } + + } else { + _force_x = 0; + _force_y = 0; + } +} + +int Manipulator::random_action() { + const scalar_t proba_to_grab_when_touching = 0.1; + const scalar_t proba_to_change_motion = 0.025; + + if(_current_polygon) { + if(drand48() < 0.01) _current_action = ACTION_RELEASE; + else if(_current_action == ACTION_RELEASE || _current_action == ACTION_GRAB || + drand48() < proba_to_change_motion) { + switch(int(drand48() * 4)) { + case 0: + _current_action = ACTION_MOVE_UP; + break; + case 1: + _current_action = ACTION_MOVE_RIGHT; + break; + case 2: + _current_action = ACTION_MOVE_DOWN; + break; + case 3: + _current_action = ACTION_MOVE_LEFT; + break; + default: + abort(); + } + } + } else { + if(_touching_polygon && drand48() < proba_to_grab_when_touching) _current_action = ACTION_GRAB; + else if(_current_action == ACTION_RELEASE || _current_action == ACTION_GRAB || + drand48() < proba_to_change_motion) { + switch(int(drand48() * 4)) { + case 0: + _current_action = ACTION_MOVE_UP; + break; + case 1: + _current_action = ACTION_MOVE_RIGHT; + break; + case 2: + _current_action = ACTION_MOVE_DOWN; + break; + case 3: + _current_action = ACTION_MOVE_LEFT; + break; + default: + abort(); + } + } + } + + return _current_action; +} + +int Manipulator::parameter_width() { + return 80 + continuous_map_size * sqsize + 1; +} + +int Manipulator::parameter_height() { + return 6 * sqsize + 2; +} + +void Manipulator::draw_parameters(int x0, int y0, SimpleWindow *window) { + scalar_t s; + + int wtext = parameter_width() - continuous_map_size * sqsize - 1; + + window->color(0.8, 0.8, 0.8); + window->fill_rectangle(x0 + wtext, y0, continuous_map_size * sqsize + 1, 4 * sqsize + 1); + window->draw_text("x-position", x0 + 8, y0 + 0 * sqsize + sqsize - 4); + window->draw_text("y-position", x0 + 8, y0 + 1 * sqsize + sqsize - 4); + window->draw_text( "x-force", x0 + 8, y0 + 2 * sqsize + sqsize - 4); + window->draw_text( "y-force", x0 + 8, y0 + 3 * sqsize + sqsize - 4); + + window->fill_rectangle(x0 + wtext + 0, y0 + 4 * sqsize, sqsize + 1, sqsize + 1); + window->draw_text("grabbing", x0 + 8, y0 + 4 * sqsize + sqsize - 4); + + window->fill_rectangle(x0 + wtext + 0, y0 + 5 * sqsize, sqsize + 1, sqsize + 1); + window->draw_text("touching", x0 + 8, y0 + 5 * sqsize + sqsize - 4); + + s = parameters[FEEL_GRABBING_OBJECT]; + window->color(0.5 * (1+s), 0.5 * (1+s), 0.5 * (1+s)); + window->fill_rectangle(x0 + wtext + 1, y0 + 4 * sqsize + 1, sqsize - 1, sqsize - 1); + + s = parameters[FEEL_TOUCHING_OBJECT]; + window->color(0.5 * (1+s), 0.5 * (1+s), 0.5 * (1+s)); + window->fill_rectangle(x0 + wtext + 1, y0 + 5 * sqsize + 1, sqsize - 1, sqsize - 1); + + for(int m = 0; m < continuous_map_size; m++) { + s = parameters[NB_DISCRETE_PARAMETERS + MAP_LOCATION_X * continuous_map_size + m]; + window->color(0.5 * (1+s), 0.5 * (1+s), 0.5 * (1+s)); + window->fill_rectangle(x0 + wtext + m * sqsize + 1, y0 + 0 * sqsize + 1, + sqsize-1, sqsize-1); + + s = parameters[NB_DISCRETE_PARAMETERS + MAP_LOCATION_Y * continuous_map_size + m]; + window->color(0.5 * (1+s), 0.5 * (1+s), 0.5 * (1+s)); + window->fill_rectangle(x0 + wtext + m * sqsize + 1, y0 + 1 * sqsize + 1, + sqsize-1, sqsize-1); + + s = parameters[NB_DISCRETE_PARAMETERS + MAP_RESISTANCE_X * continuous_map_size + m]; + window->color(0.5 * (1+s), 0.5 * (1+s), 0.5 * (1+s)); + window->fill_rectangle(x0 + wtext + m * sqsize + 1, y0 + 2 * sqsize + 1, + sqsize-1, sqsize-1); + + s = parameters[NB_DISCRETE_PARAMETERS + MAP_RESISTANCE_Y * continuous_map_size + m]; + window->color(0.5 * (1+s), 0.5 * (1+s), 0.5 * (1+s)); + window->fill_rectangle(x0 + wtext + m * sqsize + 1, y0 + 3 * sqsize + 1, + sqsize-1, sqsize-1); + } +} + +void Manipulator::draw_on_universe(SimpleWindow *window) { + int xc = int(_hand_x), yc = int(_hand_y); + const int delta = 5; + + window->color(1.0, 1.0, 1.0); + + window->draw_line(xc - delta, yc, xc + delta, yc); + window->draw_line(xc, yc - delta, xc, yc + delta); + + if(_current_polygon) { + window->draw_line(xc - delta, yc - delta, xc + delta, yc - delta); + window->draw_line(xc + delta, yc - delta, xc + delta, yc + delta); + window->draw_line(xc + delta, yc + delta, xc - delta, yc + delta); + window->draw_line(xc - delta, yc + delta, xc - delta, yc - delta); + } + + if(_touching_polygon) { + window->draw_line(xc - (delta + 2), yc - (delta + 2), xc + (delta + 2), yc - (delta + 2)); + window->draw_line(xc + (delta + 2), yc - (delta + 2), xc + (delta + 2), yc + (delta + 2)); + window->draw_line(xc + (delta + 2), yc + (delta + 2), xc - (delta + 2), yc + (delta + 2)); + window->draw_line(xc - (delta + 2), yc + (delta + 2), xc - (delta + 2), yc - (delta + 2)); + } +} + +// void Manipulator::force_grab(Universe *universe, scalar_t x, scalar_t y) { +// _hand_x = x; +// _hand_y = y; +// _current_polygon = universe->pick_polygon(_hand_x, _hand_y); +// if(_current_polygon) { +// _grab_relative_x = (_hand_x - _current_polygon->_center_x) * cos(_current_polygon->_theta) +// - (_hand_y - _current_polygon->_center_y) * sin(_current_polygon->_theta); +// _grab_relative_y = + (_hand_x - _current_polygon->_center_x) * sin(_current_polygon->_theta) +// + (_hand_y - _current_polygon->_center_y) * cos(_current_polygon->_theta); +// } +// } + +void Manipulator::force_move(scalar_t x, scalar_t y) { + scalar_t prev_hand_x =_hand_x, prev_hand_y = _hand_y; + _hand_x = x; + _hand_y = y; + if(_hand_x < 0 || _hand_x >= _xmax) _hand_x = prev_hand_x; + if(_hand_y < 0 || _hand_y >= _ymax) _hand_y = prev_hand_y; +} + +void Manipulator::force_release() { + _current_polygon = 0; + _force_x = 0.0; + _force_y = 0.0; +} diff --git a/manipulator.h b/manipulator.h new file mode 100644 index 0000000..f01abd7 --- /dev/null +++ b/manipulator.h @@ -0,0 +1,66 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +#ifndef MANIPULATOR_CC +#define MANIPULATOR_CC + +#include "misc.h" +#include "map.h" +#include "universe.h" +#include "task.h" + +class Manipulator : public Map { + static const int sqsize = 16; + Polygon *_touching_polygon, *_current_polygon; + scalar_t _grab_relative_x, _grab_relative_y; + scalar_t _xmax, _ymax; + scalar_t _hand_x, _hand_y; + scalar_t _force_x, _force_y; + bool _grab, _release; + int _current_action; + enum { FEEL_TOUCHING_OBJECT, FEEL_GRABBING_OBJECT, NB_DISCRETE_PARAMETERS }; + enum { MAP_LOCATION_X, MAP_LOCATION_Y, MAP_RESISTANCE_X, MAP_RESISTANCE_Y, NB_CONTINUOUS_MAPS }; + static const int continuous_map_size = 25; + scalar_t _kernel_continuous_maps[continuous_map_size * 2 + 1]; +public: + enum { ACTION_IDLE, + ACTION_MOVE_UP, ACTION_MOVE_RIGHT, ACTION_MOVE_DOWN, ACTION_MOVE_LEFT, + ACTION_GRAB, ACTION_RELEASE, + NB_ACTIONS }; + Manipulator(Task *task); + + inline scalar_t hand_x() { return _hand_x; } + inline scalar_t hand_y() { return _hand_y; } + inline Polygon *grabbing() { return _current_polygon; } + + int nb_actions(); + void do_action(int action); + + void update_map(); + void update(scalar_t dt, Universe *universe); + + int parameter_width(); + int parameter_height(); + void draw_parameters(int x0, int y0, SimpleWindow *window); + void draw_on_universe(SimpleWindow *window); + + int random_action(); + +// void force_grab(Universe *universe, scalar_t x, scalar_t y); + void force_move(scalar_t x, scalar_t y); + void force_release(); +}; + +#endif diff --git a/map.cc b/map.cc new file mode 100644 index 0000000..64d5ced --- /dev/null +++ b/map.cc @@ -0,0 +1,126 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +// $Id: map.cc,v 1.4 2006-07-26 06:53:18 fleuret Exp $ + +#include "map.h" + +Map::Map() { parameters = 0; } + +Map::~Map() { delete[] parameters; } + +void Map::init(int np) { + nb_parameters = np; + parameters = new scalar_t[nb_parameters]; + for(int n = 0; n < nb_parameters; n++) parameters[n] = 0; +} + +MapConcatener::MapConcatener(int nb_max_maps) : _nb_max_maps(nb_max_maps), _nb_maps(0), + _maps(new Map *[_nb_max_maps]) { } + +MapConcatener::~MapConcatener() { + delete[] _maps; +} + +void MapConcatener::add_map(Map *map) { + if(_nb_maps >= _nb_max_maps) abort(); + _maps[_nb_maps++] = map; +} + +void MapConcatener::init() { + int s = 0; + for(int m = 0; m < _nb_maps; m++) s += _maps[m]->nb_parameters; + Map::init(s); +} + +void MapConcatener::update_map() { + for(int m = 0; m < _nb_maps; m++) _maps[m]->update_map(); + int k = 0; + for(int m = 0; m < _nb_maps; m++) for(int l = 0; l < _maps[m]->nb_parameters; l++) + parameters[k++] = _maps[m]->parameters[l]; +} + +////////////////////////////////////////////////////////////////////// + +MapExpander::MapExpander(int nb_units) : _nb_units(nb_units), + _unit_weights(0), + _input(0) { } + +MapExpander::~MapExpander() { + delete[] _unit_weights; + delete[] _state_switch; +} + +void MapExpander::load(istream &is) { + is.read((char *) &_nb_units, sizeof(_nb_units)); + int input_size; + is.read((char *) &input_size, sizeof(input_size)); + + if(input_size != _input->nb_parameters) { + cerr << "Loaded map expander size missmatch." << endl; + exit(1); + } + + _unit_weights = new scalar_t[_nb_units * 2 * (_input->nb_parameters + 1)]; + parameters = new scalar_t[_nb_units]; + _state_switch = new scalar_t[_nb_units]; + + is.read((char *) _unit_weights, sizeof(scalar_t) * _nb_units * 2 * (_input->nb_parameters + 1)); + + for(int u = 0; u < _nb_units; u++) { + _state_switch[u] = 0.0; + parameters[u] = 0.0; + } +} + +void MapExpander::save(ostream &os) { + os.write((char *) &_nb_units, sizeof(_nb_units)); + os.write((char *) &_input->nb_parameters, sizeof(_input->nb_parameters)); + os.write((char *) _unit_weights, sizeof(scalar_t) * _nb_units * 2 * (_input->nb_parameters + 1)); +} + +void MapExpander::set_input(Map *input) { + ASSERT(!_input, "You can not set the input of an expanding map twice."); + _input = input; +} + +void MapExpander::init() { + ASSERT(!_unit_weights, "You can not initialize a MapExpander twice."); + _unit_weights = new scalar_t[_nb_units * 2 * (_input->nb_parameters + 1)]; + _state_switch = new scalar_t[_nb_units]; + for(int k = 0; k < _nb_units * 2 * (_input->nb_parameters + 1); k++) + _unit_weights[k] = 2 * (drand48() - 0.5); + Map::init(_nb_units); + update_map(); +} + +void MapExpander::update_map() { + ASSERT(_unit_weights, "You have to call MapExpander::init() before using it."); + _input->update_map(); + scalar_t s1, s2; + int k = 0; + for(int u = 0; u < _nb_units; u++) { + s1 = _unit_weights[k++]; + for(int p = 0; p < _input->nb_parameters; p++) + s1 += _unit_weights[k++] * _input->parameters[p]; + s2 = _unit_weights[k++]; + for(int p = 0; p < _input->nb_parameters; p++) + s2 += _unit_weights[k++] * _input->parameters[p]; + parameters[u] = s1; + _state_switch[u] = s2; + } +} + +////////////////////////////////////////////////////////////////////// diff --git a/map.h b/map.h new file mode 100644 index 0000000..3202d83 --- /dev/null +++ b/map.h @@ -0,0 +1,71 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +// $Id: map.h,v 1.5 2006-07-26 06:53:19 fleuret Exp $ + +#ifndef MAP_H +#define MAP_H + +#include +#include + +using namespace std; + +#include "misc.h" + +class Map { +public: + int nb_parameters; + scalar_t *parameters; + Map(); + virtual ~Map(); + virtual void init(int np); + virtual void update_map() = 0; +}; + +// A MapConcatener groups several maps and make them appear as a +// single one + +class MapConcatener : public Map { + int _nb_max_maps, _nb_maps; + Map **_maps; +public: + MapConcatener(int nb_max_maps); + ~MapConcatener(); + void load(istream &is); + void save(ostream &os); + void add_map(Map *map); + void init(); + void update_map(); +}; + +// A MapExpander is a map whose parameters are functions of the +// parameter of an input map + +class MapExpander : public Map { + int _nb_units; + scalar_t *_unit_weights, *_state_switch; + Map *_input; +public: + MapExpander(int nb_units); + ~MapExpander(); + void load(istream &is); + void save(ostream &os); + void set_input(Map *input); + void init(); + void update_map(); +}; + +#endif diff --git a/misc.cc b/misc.cc new file mode 100644 index 0000000..fa6e7ba --- /dev/null +++ b/misc.cc @@ -0,0 +1,24 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +// $Id: misc.cc,v 1.1 2006-07-16 10:27:35 fleuret Exp $ + +#include "misc.h" + +int compare_couple(const void *a, const void *b) { + if(((Couple *) a)->value < ((Couple *) b)->value) return -1; + else if(((Couple *) a)->value > ((Couple *) b)->value) return 1; + else return 0; +} diff --git a/misc.h b/misc.h new file mode 100644 index 0000000..d5f1b24 --- /dev/null +++ b/misc.h @@ -0,0 +1,43 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +#ifndef MISC_H +#define MISC_H + +#include +#include + +#ifdef DEBUG +#define ASSERT(x, s) if(!(x)) { std::cerr << "ASSERT FAILED IN " << __FILE__ << ":" << __LINE__ << " [" << (s) << "]\n"; abort(); } +#else +#define ASSERT(x, s) +#endif + +typedef float scalar_t; + +inline scalar_t sq(scalar_t x) { return x*x; } + +inline scalar_t prod_vect(scalar_t x1, scalar_t y1, scalar_t x2, scalar_t y2) { + return x1 * y2 - x2 * y1; +} + +struct Couple { + int index; + scalar_t value; +}; + +int compare_couple(const void *a, const void *b); + +#endif diff --git a/move_square.cc b/move_square.cc new file mode 100644 index 0000000..1722be8 --- /dev/null +++ b/move_square.cc @@ -0,0 +1,87 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +// $Id: move_square.cc,v 1.16 2006-07-21 08:44:16 fleuret Exp $ + +#include "task.h" +#include "universe.h" +#include "manipulator.h" + +class MoveSquare : public Task { + + Polygon *_target; + + int _square_size; + const static int world_width = 500; + const static int world_height = 500; + +public: + + virtual char *name() { return "MOVE_SQUARE"; } + + virtual int nb_degrees() { return 5; } + + virtual int width() { return world_width; } + + virtual int height() { return world_height; } + + virtual void init(Universe *universe, int degree) { + if(degree == 0) _square_size = 200; + else if(degree == 1) _square_size = 150; + else if(degree == 2) _square_size = 100; + else _square_size = 50; + scalar_t x[] = { -_square_size/2, _square_size/2, _square_size/2, -_square_size/2 }; + scalar_t y[] = { -_square_size/2, -_square_size/2, _square_size/2, _square_size/2 }; + _target = new Polygon(0.5, 1.0, 1.0, 0.0, x, y, 4); + _target->set_position(_square_size/2, _square_size/2 + (world_height - _square_size) * drand48(), 0); + _target->set_speed(0, 0, 0); + universe->initialize(_target); + universe->add_polygon(_target); + if(degree == 4) { + Polygon *obstacle; + scalar_t x[] = { ( 9 * world_width)/20, (11 * world_width)/20, + (11 * world_width)/20, ( 9 * world_width)/20 }; + scalar_t y[] = { ( 3 * world_height)/20, ( 3 * world_height)/20, + (17 * world_height)/20, (17 * world_height)/20 }; + obstacle = new Polygon(1.0, 0.0, 1.0, 0.0, x, y, 4); + obstacle->set_position(world_width/2, world_height/2, 0); + obstacle->set_speed(0, 0, 0); + obstacle->_nailed = true; + universe->initialize(obstacle); + universe->add_polygon(obstacle); + } + } + + virtual void update(scalar_t dt, Universe *universe, Manipulator *manipulator) { } + + virtual scalar_t reward(Universe *universe, Manipulator *manipulator) { + if(_target->_center_x > world_width - _square_size * 0.75) { + _target->set_position(_square_size/2, _square_size/2 + (world_height - _square_size) * drand48(), 0); + _target->set_speed(0, 0, 0); + manipulator->force_release(); + return 1.0; + } else return 0.0; + } + + virtual void draw(SimpleWindow *window) { + window->color(0.75, 0.75, 0.75); + int x = int (world_width - _square_size * 0.75); + window->draw_line(x, 0, x, world_height); + } +}; + +extern "C" Task *new_task() { + return new MoveSquare(); +} diff --git a/polygon.cc b/polygon.cc new file mode 100644 index 0000000..75163cb --- /dev/null +++ b/polygon.cc @@ -0,0 +1,502 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +#include +#include "polygon.h" + +static const scalar_t dl = 20.0; +static const scalar_t repulsion_constant = 0.2; +static const scalar_t dissipation = 0.5; + +Polygon::Polygon(scalar_t mass, + scalar_t red, scalar_t green, scalar_t blue, + scalar_t *x, scalar_t *y, + int nv) : _mass(mass), + _moment_of_inertia(0), _radius(0), + _relative_x(new scalar_t[nv]), _relative_y(new scalar_t[nv]), + _total_nb_dots(0), + _nb_dots(new int[nv]), + _effecting_edge(0), + _length(new scalar_t[nv]), + _triangles(new Triangle[nv-2]), + _initialized(false), _nailed(false), + _nb_vertices(nv), + _x(new scalar_t[nv]), _y(new scalar_t[nv]), + _red(red), _green(green), _blue(blue) { + _last_center_x = 0; + _last_center_y = 0; + _last_theta = 0; + + if(x) for(int i = 0; i < nv; i++) _relative_x[i] = x[i]; + if(y) for(int i = 0; i < nv; i++) _relative_y[i] = y[i]; +} + +Polygon::~Polygon() { + delete[] _relative_x; + delete[] _relative_y; + delete[] _x; + delete[] _y; + delete[] _nb_dots; + delete[] _length; + delete[] _triangles; + delete[] _effecting_edge; +} + +Polygon *Polygon::clone() { + return new Polygon(_mass, _red, _green, _blue, _relative_x, _relative_y, _nb_vertices); +} + +void Polygon::print_fig(ostream &os) { + os << "2 2 0 1 0 7 50 -1 20 0.000 0 0 -1 0 0 " << _nb_vertices + 1 << endl; + os << " "; + for(int n = 0; n < _nb_vertices; n++) os << " " << int(_x[n]*10) << " " << int(_y[n]*10); + os << " " << int(_x[0]*10) << " " << int(_y[0]*10); + os << endl; +} + +void Polygon::draw(SimpleWindow *window) { + window->color(_red, _green, _blue); + int x[_nb_vertices], y[_nb_vertices]; + for(int n = 0; n < _nb_vertices; n++) { + x[n] = int(_x[n]); + y[n] = int(_y[n]); + } + window->fill_polygon(_nb_vertices, x, y); +} + +void Polygon::draw_contours(SimpleWindow *window) { + int x[_nb_vertices], y[_nb_vertices]; + for(int n = 0; n < _nb_vertices; n++) { + x[n] = int(_x[n]); + y[n] = int(_y[n]); + } + window->color(0.0, 0.0, 0.0); + for(int n = 0; n < _nb_vertices; n++) + window->draw_line(x[n], y[n], x[(n+1)%_nb_vertices], y[(n+1)%_nb_vertices]); +} + +void Polygon::set_vertex(int k, scalar_t x, scalar_t y) { + _relative_x[k] = x; + _relative_y[k] = y; +} + +void Polygon::set_position(scalar_t center_x, scalar_t center_y, scalar_t theta) { + _center_x = center_x; + _center_y = center_y; + _theta = theta; +} + +void Polygon::set_speed(scalar_t dcenter_x, scalar_t dcenter_y, scalar_t dtheta) { + _dcenter_x = dcenter_x; + _dcenter_y = dcenter_y; + _dtheta = dtheta; +} + +bool Polygon::contain(scalar_t x, scalar_t y) { + for(int t = 0; t < _nb_vertices-2; t++) { + scalar_t xa = _x[_triangles[t].a], ya = _y[_triangles[t].a]; + scalar_t xb = _x[_triangles[t].b], yb = _y[_triangles[t].b]; + scalar_t xc = _x[_triangles[t].c], yc = _y[_triangles[t].c]; + if(prod_vect(x - xa, y - ya, xb - xa, yb - ya) <= 0 && + prod_vect(x - xb, y - yb, xc - xb, yc - yb) <= 0 && + prod_vect(x - xc, y - yc, xa - xc, ya - yc) <= 0) return true; + } + return false; +} + +void Polygon::triangularize(int &nt, int nb, int *index) { + if(nb == 3) { + + if(nt >= _nb_vertices-2) { + cerr << "Error type #1 in triangularization." << endl; + exit(1); + } + + _triangles[nt].a = index[0]; + _triangles[nt].b = index[1]; + _triangles[nt].c = index[2]; + nt++; + + } else { + int best_m = -1, best_n = -1; + scalar_t best_split = -1, det, s = -1, t = -1; + + for(int n = 0; n < nb; n++) for(int m = 0; m < n; m++) if(n > m+1 && m+nb > n+1) { + bool no_intersection = true; + for(int k = 0; no_intersection & (k < nb); k++) + if(k != n && k != m && (k+1)%nb != n && (k+1)%nb != m) { + intersection(_relative_x[index[n]], _relative_y[index[n]], + _relative_x[index[m]], _relative_y[index[m]], + _relative_x[index[k]], _relative_y[index[k]], + _relative_x[index[(k+1)%nb]], _relative_y[index[(k+1)%nb]], det, s, t); + no_intersection = det == 0 || s < 0 || s > 1 || t < 0 || t > 1; + } + + if(no_intersection) { + scalar_t a1 = 0, a2 = 0; + for(int k = 0; k < nb; k++) if(k >= m && k < n) + a1 += prod_vect(_relative_x[index[k]] - _relative_x[index[m]], + _relative_y[index[k]] - _relative_y[index[m]], + _relative_x[index[k+1]] - _relative_x[index[m]], + _relative_y[index[k+1]] - _relative_y[index[m]]); + else + a2 += prod_vect(_relative_x[index[k]] - _relative_x[index[m]], + _relative_y[index[k]] - _relative_y[index[m]], + _relative_x[index[(k+1)%nb]] - _relative_x[index[m]], + _relative_y[index[(k+1)%nb]] - _relative_y[index[m]]); + + if(a1 * a2 > 0 && best_split < 0 || (abs(a1 - a2) < best_split)) { + best_n = n; best_m = m; + best_split = abs(a1 - a2); + } + } + } + + if(best_n >= 0 && best_m >= 0) { + int index_neg[nb], index_pos[nb]; + int neg = 0, pos = 0; + for(int k = 0; k < nb; k++) { + if(k >= best_m && k <= best_n) index_pos[pos++] = index[k]; + if(k <= best_m || k >= best_n) index_neg[neg++] = index[k]; + } + if(pos < 3 || neg < 3) { + cerr << "Error type #2 in triangularization." << endl; + exit(1); + } + triangularize(nt, pos, index_pos); + triangularize(nt, neg, index_neg); + } else { + cerr << "Error type #3 in triangularization." << endl; + exit(1); + } + } +} + +void Polygon::initialize(int nb_polygons) { + scalar_t a; + + _nb_polygons = nb_polygons; + + a = _relative_x[_nb_vertices - 1] * _relative_y[0] - _relative_x[0] * _relative_y[_nb_vertices - 1]; + for(int n = 0; n < _nb_vertices - 1; n++) + a += _relative_x[n] * _relative_y[n+1] - _relative_x[n+1] * _relative_y[n]; + a *= 0.5; + + // Reorder the vertices + + if(a < 0) { + a = -a; + scalar_t x, y; + for(int n = 0; n < _nb_vertices / 2; n++) { + x = _relative_x[n]; + y = _relative_y[n]; + _relative_x[n] = _relative_x[_nb_vertices - 1 - n]; + _relative_y[n] = _relative_y[_nb_vertices - 1 - n]; + _relative_x[_nb_vertices - 1 - n] = x; + _relative_y[_nb_vertices - 1 - n] = y; + } + } + + // Compute the center of mass and moment of inertia + + scalar_t sx, sy, w; + w = 0; + sx = 0; + sy = 0; + for(int n = 0; n < _nb_vertices; n++) { + int np = (n+1)%_nb_vertices; + w =_relative_x[n] * _relative_y[np] - _relative_x[np] * _relative_y[n]; + sx += (_relative_x[n] + _relative_x[np]) * w; + sy += (_relative_y[n] + _relative_y[np]) * w; + } + sx /= 6 * a; + sy /= 6 * a; + + _radius = 0; + for(int n = 0; n < _nb_vertices; n++) { + _relative_x[n] -= sx; + _relative_y[n] -= sy; + scalar_t r = sqrt(sq(_relative_x[n]) + sq(_relative_y[n])); + if(r > _radius) _radius = r; + } + + scalar_t num = 0, den = 0; + for(int n = 0; n < _nb_vertices; n++) { + int np = (n+1)%_nb_vertices; + den += abs(prod_vect(_relative_x[np], _relative_y[np], _relative_x[n], _relative_y[n])); + num += abs(prod_vect(_relative_x[np], _relative_y[np], _relative_x[n], _relative_y[n])) * + (_relative_x[np] * _relative_x[np] + _relative_y[np] * _relative_y[np] + + _relative_x[np] * _relative_x[n] + _relative_y[np] * _relative_y[n] + + _relative_x[n] * _relative_x[n] + _relative_y[n] * _relative_y[n]); + } + + _moment_of_inertia = num / (6 * den); + + scalar_t vx = cos(_theta), vy = sin(_theta); + + for(int n = 0; n < _nb_vertices; n++) { + _x[n] = _center_x + _relative_x[n] * vx + _relative_y[n] * vy; + _y[n] = _center_y - _relative_x[n] * vy + _relative_y[n] * vx; + } + + scalar_t length; + _total_nb_dots = 0; + for(int n = 0; n < _nb_vertices; n++) { + length = sqrt(sq(_relative_x[n] - _relative_x[(n+1)%_nb_vertices]) + + sq(_relative_y[n] - _relative_y[(n+1)%_nb_vertices])); + _length[n] = length; + _nb_dots[n] = int(length / dl + 1); + _total_nb_dots += _nb_dots[n]; + } + + delete[] _effecting_edge; + _effecting_edge = new int[_nb_polygons * _total_nb_dots]; + for(int p = 0; p < _nb_polygons * _total_nb_dots; p++) _effecting_edge[p] = -1; + + int nt = 0; + int index[_nb_vertices]; + for(int n = 0; n < _nb_vertices; n++) index[n] = n; + triangularize(nt, _nb_vertices, index); + + _initialized = true; +} + +bool Polygon::update(scalar_t dt) { + if(!_nailed) { + _center_x += _dcenter_x * dt; + _center_y += _dcenter_y * dt; + _theta += _dtheta * dt; + } + + scalar_t d = exp(log(dissipation) * dt); + _dcenter_x *= d; + _dcenter_y *= d; + _dtheta *= d; + + scalar_t vx = cos(_theta), vy = sin(_theta); + + for(int n = 0; n < _nb_vertices; n++) { + _x[n] = _center_x + _relative_x[n] * vx + _relative_y[n] * vy; + _y[n] = _center_y - _relative_x[n] * vy + _relative_y[n] * vx; + } + + if(abs(_center_x - _last_center_x) + + abs(_center_y - _last_center_y) + + abs(_theta - _last_theta) * _radius > 0.1) { + _last_center_x = _center_x; + _last_center_y = _center_y; + _last_theta = _theta; + return true; + } else return false; +} + +scalar_t Polygon::relative_x(scalar_t ax, scalar_t ay) { + return (ax - _center_x) * cos(_theta) - (ay - _center_y) * sin(_theta); +} + +scalar_t Polygon::relative_y(scalar_t ax, scalar_t ay) { + return (ax - _center_x) * sin(_theta) + (ay - _center_y) * cos(_theta); +} + +scalar_t Polygon::absolute_x(scalar_t rx, scalar_t ry) { + return _center_x + rx * cos(_theta) + ry * sin(_theta); +} + +scalar_t Polygon::absolute_y(scalar_t rx, scalar_t ry) { + return _center_y - rx * sin(_theta) + ry * cos(_theta); +} + +void Polygon::apply_force(scalar_t dt, scalar_t x, scalar_t y, scalar_t fx, scalar_t fy) { + _dcenter_x += fx / _mass * dt; + _dcenter_y += fy / _mass * dt; + _dtheta -= prod_vect(x - _center_x, y - _center_y, fx, fy) / (_mass * _moment_of_inertia) * dt; +} + +void Polygon::apply_border_forces(scalar_t dt, scalar_t xmax, scalar_t ymax) { + for(int v = 0; v < _nb_vertices; v++) { + int vp = (v+1)%_nb_vertices; + for(int d = 0; d < _nb_dots[v]; d++) { + scalar_t s = scalar_t(d * dl)/_length[v]; + scalar_t x = _x[v] * (1 - s) + _x[vp] * s; + scalar_t y = _y[v] * (1 - s) + _y[vp] * s; + scalar_t vx = 0, vy = 0; + if(x < 0) vx = x; + else if(x > xmax) vx = x - xmax; + if(y < 0) vy = y; + else if(y > ymax) vy = y - ymax; + apply_force(dt, x, y, - dl * vx * repulsion_constant, - dl * vy * repulsion_constant); + } + } +} + +void Polygon::apply_collision_forces(scalar_t dt, int n_polygon, Polygon *p) { + scalar_t closest_x[_total_nb_dots], closest_y[_total_nb_dots]; + bool inside[_total_nb_dots]; + scalar_t distance[_total_nb_dots]; + int _new_effecting_edge[_total_nb_dots]; + + int first_dot = 0; + + for(int v = 0; v < _nb_vertices; v++) { + int vp = (v+1)%_nb_vertices; + scalar_t x = _x[v], y = _y[v], xp = _x[vp], yp = _y[vp]; + + for(int d = 0; d < _nb_dots[v]; d++) { + inside[d] = false; + distance[d] = FLT_MAX; + } + + // First, we tag the dots located inside the polygon p + + for(int t = 0; t < p->_nb_vertices-2; t++) { + scalar_t min = 0, max = 1; + scalar_t xa = p->_x[p->_triangles[t].a], ya = p->_y[p->_triangles[t].a]; + scalar_t xb = p->_x[p->_triangles[t].b], yb = p->_y[p->_triangles[t].b]; + scalar_t xc = p->_x[p->_triangles[t].c], yc = p->_y[p->_triangles[t].c]; + scalar_t den, num; + + const scalar_t eps = 1e-6; + + den = prod_vect(xp - x, yp - y, xb - xa, yb - ya); + num = prod_vect(xa - x, ya - y, xb - xa, yb - ya); + if(den > eps) { + if(num / den < max) max = num / den; + } else if(den < -eps) { + if(num / den > min) min = num / den; + } else { + if(num < 0) { min = 1; max = 0; } + } + + den = prod_vect(xp - x, yp - y, xc - xb, yc - yb); + num = prod_vect(xb - x, yb - y, xc - xb, yc - yb); + if(den > eps) { + if(num / den < max) max = num / den; + } else if(den < -eps) { + if(num / den > min) min = num / den; + } else { + if(num < 0) { min = 1; max = 0; } + } + + den = prod_vect(xp - x, yp - y, xa - xc, ya - yc); + num = prod_vect(xc - x, yc - y, xa - xc, ya - yc); + if(den > eps) { + if(num / den < max) max = num / den; + } else if(den < -eps) { + if(num / den > min) min = num / den; + } else { + if(num < 0) { min = 1; max = 0; } + } + + for(int d = 0; d < _nb_dots[v]; d++) { + scalar_t s = scalar_t(d * dl)/_length[v]; + if(s >= min && s <= max) inside[d] = true; + } + } + + // Then, we compute for each dot what is the closest point on + // the boundary of p + + for(int m = 0; m < p->_nb_vertices; m++) { + int mp = (m+1)%p->_nb_vertices; + scalar_t xa = p->_x[m], ya = p->_y[m]; + scalar_t xb = p->_x[mp], yb = p->_y[mp]; + scalar_t gamma0 = ((x - xa) * (xb - xa) + (y - ya) * (yb - ya)) / sq(p->_length[m]); + scalar_t gamma1 = ((xp - x) * (xb - xa) + (yp - y) * (yb - ya)) / sq(p->_length[m]); + scalar_t delta0 = (prod_vect(xb - xa, yb - ya, x - xa, y - ya)) / p->_length[m]; + scalar_t delta1 = (prod_vect(xb - xa, yb - ya, xp - x, yp - y)) / p->_length[m]; + + for(int d = 0; d < _nb_dots[v]; d++) if(inside[d]) { + int r = _effecting_edge[(first_dot + d) * _nb_polygons + n_polygon]; + + // If there is already a spring, we look only at the + // vertices next to the current one + + if(r < 0 || m == r || m == (r+1)%p->_nb_vertices || (m+1)%p->_nb_vertices == r) { + + scalar_t s = scalar_t(d * dl)/_length[v]; + scalar_t delta = abs(s * delta1 + delta0); + if(delta < distance[d]) { + scalar_t gamma = s * gamma1 + gamma0; + if(gamma < 0) { + scalar_t l = sqrt(sq(x * (1 - s) + xp * s - xa) + sq(y * (1 - s) + yp * s - ya)); + if(l < distance[d]) { + distance[d] = l; + closest_x[d] = xa; + closest_y[d] = ya; + _new_effecting_edge[first_dot + d] = m; + } + } else if(gamma > 1) { + scalar_t l = sqrt(sq(x * (1 - s) + xp * s - xb) + sq(y * (1 - s) + yp * s - yb)); + if(l < distance[d]) { + distance[d] = l; + closest_x[d] = xb; + closest_y[d] = yb; + _new_effecting_edge[first_dot + d] = m; + } + } else { + distance[d] = delta; + closest_x[d] = xa * (1 - gamma) + xb * gamma; + closest_y[d] = ya * (1 - gamma) + yb * gamma; + _new_effecting_edge[first_dot + d] = m; + } + } + } + } else _new_effecting_edge[first_dot + d] = -1; + } + + // Apply forces + + for(int d = 0; d < _nb_dots[v]; d++) if(inside[d]) { + scalar_t s = scalar_t(d * dl)/_length[v]; + scalar_t x = _x[v] * (1 - s) + _x[vp] * s; + scalar_t y = _y[v] * (1 - s) + _y[vp] * s; + scalar_t vx = x - closest_x[d]; + scalar_t vy = y - closest_y[d]; + + p->apply_force(dt, + closest_x[d], closest_y[d], + dl * vx * repulsion_constant, dl * vy * repulsion_constant); + + apply_force(dt, + x, y, + - dl * vx * repulsion_constant, - dl * vy * repulsion_constant); + } + + first_dot += _nb_dots[v]; + } + + for(int d = 0; d < _total_nb_dots; d++) + _effecting_edge[d * _nb_polygons + n_polygon] = _new_effecting_edge[d]; + +} + +bool Polygon::collide(Polygon *p) { + for(int n = 0; n < _nb_vertices; n++) { + int np = (n+1)%_nb_vertices; + for(int m = 0; m < p->_nb_vertices; m++) { + int mp = (m+1)%p->_nb_vertices; + scalar_t det, s = -1, t = -1; + intersection(_x[n], _y[n], _x[np], _y[np], + p->_x[m], p->_y[m], p->_x[mp], p->_y[mp], det, s, t); + if(det != 0 && s>= 0 && s <= 1&& t >= 0 && t <= 1) return true; + } + } + + for(int n = 0; n < _nb_vertices; n++) if(p->contain(_x[n], _y[n])) return true; + for(int n = 0; n < p->_nb_vertices; n++) if(contain(p->_x[n], p->_y[n])) return true; + + return false; +} + diff --git a/polygon.h b/polygon.h new file mode 100644 index 0000000..d7caa9d --- /dev/null +++ b/polygon.h @@ -0,0 +1,101 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +#ifndef POLYGON_H +#define POLYGON_H + +#include "misc.h" +#include "simple_window.h" + +class Polygon { + struct Triangle { + int a, b, c; + }; + + int _nb_max_polygons; + int _nb_polygons; // We need to know the total number of polygons in + // the universe + + scalar_t _mass, _moment_of_inertia, _radius; + + scalar_t *_relative_x, *_relative_y; + scalar_t _last_center_x, _last_center_y, _last_theta; + + int _total_nb_dots; + int *_nb_dots; + int *_effecting_edge; + + scalar_t *_length; + Triangle *_triangles; + + inline void intersection(scalar_t xa2, scalar_t ya2, + scalar_t xa1, scalar_t ya1, + scalar_t xb2, scalar_t yb2, + scalar_t xb1, scalar_t yb1, + scalar_t &det, scalar_t &s1, scalar_t &s2) { + scalar_t m11, m12, m21, m22, n11, n12, n21, n22, v1, v2; + m11 = xa1 - xa2; m12 = xb2 - xb1; m21 = ya1 - ya2; m22 = yb2 - yb1; + det = m11 * m22 - m12 * m21; + if(det != 0) { + n11 = + m22 / det; n12 = - m12 / det; n21 = - m21 / det; n22 = + m11 / det; + v1 = xb2 - xa2; v2 = yb2 - ya2; + s1 = n11 * v1 + n12 * v2; s2 = n21 * v1 + n22 * v2; + } + } + +public: + bool _initialized; + bool _nailed; + int _nb_vertices; + scalar_t *_x, *_y; + scalar_t _red, _green, _blue; + scalar_t _center_x, _center_y, _theta; + scalar_t _dcenter_x, _dcenter_y, _dtheta; + + // The x and y parameters are ignored if null. Useful to initialize + // directly. + + Polygon(scalar_t mass, + scalar_t red, scalar_t green, scalar_t blue, + scalar_t *x, scalar_t *y, + int nv); + + ~Polygon(); + + Polygon *clone(); + + void print_fig(ostream &os); + void draw(SimpleWindow *window); + void draw_contours(SimpleWindow *window); + void set_vertex(int k, scalar_t x, scalar_t y); + void set_position(scalar_t center_x, scalar_t center_y, scalar_t theta); + void set_speed(scalar_t dcenter_x, scalar_t dcenter_y, scalar_t dtheta); + bool contain(scalar_t x, scalar_t y); + void triangularize(int &nt, int nb, int *index); + void initialize(int nb_polygons); + bool update(scalar_t dt); + scalar_t relative_x(scalar_t ax, scalar_t ay); + scalar_t relative_y(scalar_t ax, scalar_t ay); + scalar_t absolute_x(scalar_t rx, scalar_t ry); + scalar_t absolute_y(scalar_t rx, scalar_t ry); + + void apply_force(scalar_t dt, scalar_t x, scalar_t y, scalar_t fx, scalar_t fy); + void apply_border_forces(scalar_t dt, scalar_t xmax, scalar_t ymax); + void apply_collision_forces(scalar_t dt, int n_polygon, Polygon *p); + + bool collide(Polygon *p); +}; + +#endif diff --git a/retina.cc b/retina.cc new file mode 100644 index 0000000..45975ba --- /dev/null +++ b/retina.cc @@ -0,0 +1,319 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +#include "retina.h" + +const int ring_width[] = { 128, 64, 32, 16, 8, 4, 1, 1, 1, 1}; + +// const int ring_width[] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 }; + +Retina::Retina(Universe *universe) : _universe(universe), + _tag_map(new Tag *[_width * _height]), + _tag_stack(new Tag[_width * _height]), + _tag_stack_top(_tag_stack), + _red_imap(new scalar_t[(_width + 1) * (_height + 1)]), + _green_imap(new scalar_t[(_width + 1) * (_height + 1)]), + _blue_imap(new scalar_t[(_width + 1) * (_height + 1)]) { + reset(); + + int np = 0; + int w = _width; + for(int k = 0; k < int(sizeof(ring_width)/sizeof(int)); k++) { + np += 4 * (w / ring_width[k] - 1); + w -= 2 * ring_width[k]; + } + + np *= 3; + Map::init(np); +} + +Retina::~Retina() { + delete[] _tag_map; + delete[] _tag_stack; + delete[] _red_imap; + delete[] _green_imap; + delete[] _blue_imap; +} + +void Retina::reset() { + for(int k = 0; k < _width * _height; k++) _tag_map[k] = 0; + _tag_stack_top = _tag_stack; + _current_polygon = 0; +} + +void Retina::draw_polygon(Polygon *p, scalar_t delta_x, scalar_t delta_y) { + int nb = p->_nb_vertices; + + int ix[nb], iy[nb]; + + for(int n = 0; n < nb; n++) { + ix[n] = int(p->_x[n] + delta_x); + iy[n] = int(p->_y[n] + delta_y); + } + + scalar_t red = p->_red; + scalar_t green = p->_green; + scalar_t blue = p->_blue; + + int direction; + if(iy[0] > iy[nb-1]) direction = 1; + else if(iy[0] < iy[nb-1]) direction = -1; + else direction = 0; + + for(int n = 0; n < nb; n++) { + int m = (n+1)%nb; + + if(ix[n] >= 0 && ix[n] < _width && iy[n] >= 0 && iy[n] < _height && + ix[m] >= 0 && ix[m] < _width && iy[m] >= 0 && iy[m] < _height) { + + if(iy[m] > iy[n]) { // RIGHT BORDERS + + if(direction < 0) push_tag(1 + ix[n], iy[n], red, green, blue); + for(int y = iy[n] + 1; y <= iy[m]; y++) + push_tag(1 + ix[n] + ((ix[m] - ix[n]) * (y - iy[n]))/(iy[m] - iy[n]), y, + red, green, blue); + direction = 1; + + } else if(iy[m] < iy[n]) { // LEFT BORDERS + + if(direction >= 0) push_tag(ix[n], iy[n], red, green, blue); + for(int y = iy[n] - 1; y >= iy[m]; y--) + push_tag(ix[n] + ((ix[m] - ix[n]) * (y - iy[n]))/(iy[m] - iy[n]), y, + red, green, blue); + direction = -1; + + } else { + + if(direction >= 0) push_tag(ix[n]+1, iy[n], red, green, blue); + push_tag(ix[m], iy[m], red, green, blue); + direction = 0; + + } + + } else { + + if(iy[m] > iy[n]) { // RIGHT BORDERS + + if(direction < 0) protected_push_tag(1 + ix[n], iy[n], red, green, blue); + for(int y = iy[n] + 1; y <= iy[m]; y++) + protected_push_tag(1 + ix[n] + ((ix[m] - ix[n]) * (y - iy[n]))/(iy[m] - iy[n]), y, + red, green, blue); + direction = 1; + + } else if(iy[m] < iy[n]) { // LEFT BORDERS + + if(direction >= 0) protected_push_tag(ix[n], iy[n], red, green, blue); + for(int y = iy[n] - 1; y >= iy[m]; y--) + protected_push_tag(ix[n] + ((ix[m] - ix[n]) * (y - iy[n]))/(iy[m] - iy[n]), y, + red, green, blue); + direction = -1; + + } else { + + if(direction >= 0) protected_push_tag(ix[n]+1, iy[n], red, green, blue); + protected_push_tag(ix[m], iy[m], red, green, blue); + direction = 0; + + } + } + } + + _current_polygon++; +} + +void Retina::fill() { + bool in[_current_polygon]; + for(int p = 0; p < _current_polygon; p++) in[p] = false; + + scalar_t red[_current_polygon], green[_current_polygon], blue[_current_polygon]; + Tag **u = _tag_map; + + int lk = 0, k = 0; + + for(int x = 0; x < _width+1; x++) { + _red_imap[k] = 0; + _green_imap[k] = 0; + _blue_imap[k] = 0; + k++; + } + + int current_index = -1; + for(int y = 0; y < _height; y++) { + scalar_t sred = 0, sgreen = 0, sblue = 0; + _red_imap[k] = 0; + _green_imap[k] = 0; + _blue_imap[k] = 0; + k++; lk++; + + for(int x = 0; x < _width; x++) { + for(Tag *t = *u; t; t = t->next) { + if(in[t->index]) { + in[t->index] = false; + if(t->index == current_index) { + current_index--; + while(current_index >= 0 && !in[current_index]) current_index--; + } + } else { + in[t->index] = true; + red[t->index] = t->red; + green[t->index] = t->green; + blue[t->index] = t->blue; + if(t->index > current_index) current_index = t->index; + } + } + + if(current_index >= 0) { + sred += red[current_index]; + sgreen += green[current_index]; + sblue += blue[current_index]; + } + + _red_imap[k] = sred + _red_imap[lk]; + _green_imap[k] = sgreen + _green_imap[lk]; + _blue_imap[k] = sblue + _blue_imap[lk]; + + k++; lk++; + u++; + } + } +} + +void Retina::raw_rectangle(unsigned char *image, int xmin, int ymin, int w, int h, + scalar_t red, scalar_t green, scalar_t blue) { + for(int y = ymin; y < ymin + h; y++) for(int x = xmin; x < xmin + w; x++) { + image[(y * _width + x) * 3 + 0] = (unsigned char) (255 * red); + image[(y * _width + x) * 3 + 1] = (unsigned char) (255 * green); + image[(y * _width + x) * 3 + 2] = (unsigned char) (255 * blue); + } +} + +void Retina::save_as_ppm(char *filename) { + unsigned char *image = new unsigned char[_width * _height * 3]; + + + int n = 0; + int w = _width; + + for(int k = 0; k < int(sizeof(ring_width)/sizeof(int)); k++) { + int s = ring_width[k]; + int z0 = (_width - w)/2; + int z3 = z0 + w; + int z2 = z3 - s; + + for(int x = z0; x < z2; x += s) { + raw_rectangle(image, x, z0, s, s, parameters[n + 0], parameters[n + 1], parameters[n + 2]); + n += 3; + raw_rectangle(image, z2, x, s, s, parameters[n + 0], parameters[n + 1], parameters[n + 2]); + n += 3; + raw_rectangle(image, x + s, z2, s, s, parameters[n + 0], parameters[n + 1], parameters[n + 2]); + n += 3; + raw_rectangle(image, z0, x + s, s, s, parameters[n + 0], parameters[n + 1], parameters[n + 2]); + n += 3; + } + w -= 2 * s; + } + + ofstream out(filename); + out << "P6" << endl; + out << _width << " " << _height << endl; + out << 255 << endl; + out.write((char *) image, _width * _height * 3); + out.flush(); + delete[] image; +} + +void Retina::update_map() { + + reset(); + for(int p = 0; p < _universe->_nb_polygons; p++) if(_universe->_polygons[p]) + draw_polygon(_universe->_polygons[p], scalar_t(_width)/2 - _eye_x, scalar_t(_height)/2 - _eye_y); + fill(); + + int n = 0; + int w = _width; + + for(int k = 0; k < int(sizeof(ring_width)/sizeof(int)); k++) { + + int s = ring_width[k]; + int z0 = (_width - w)/2; + int z1 = z0 + s; + int z3 = z0 + w; + int z2 = z3 - s; + + for(int x = z0; x < z2; x += s) { + parameters[n++] = red_sum(x, z0, x + s + 0, z1 + 0) / scalar_t(s * s); + parameters[n++] = green_sum(x, z0, x + s + 0, z1 + 0) / scalar_t(s * s); + parameters[n++] = blue_sum(x, z0, x + s + 0, z1 + 0) / scalar_t(s * s); + + parameters[n++] = red_sum(z2, x, z3 + 0, x + s + 0) / scalar_t(s * s); + parameters[n++] = green_sum(z2, x, z3 + 0, x + s + 0) / scalar_t(s * s); + parameters[n++] = blue_sum(z2, x, z3 + 0, x + s + 0) / scalar_t(s * s); + + parameters[n++] = red_sum(x + s, z2, x + 2 * s + 0, z3 + 0) / scalar_t(s * s); + parameters[n++] = green_sum(x + s, z2, x + 2 * s + 0, z3 + 0) / scalar_t(s * s); + parameters[n++] = blue_sum(x + s, z2, x + 2 * s + 0, z3 + 0) / scalar_t(s * s); + + parameters[n++] = red_sum(z0, x + s, z1 + 0, x + 2 * s + 0) / scalar_t(s * s); + parameters[n++] = green_sum(z0, x + s, z1 + 0, x + 2 * s + 0) / scalar_t(s * s); + parameters[n++] = blue_sum(z0, x + s, z1 + 0, x + 2 * s + 0) / scalar_t(s * s); + } + w -= 2 * s; + } + +#ifdef DEBUG + if(w != 0) { + cerr << "Error in the retina ring sizes!" << endl; + abort(); + } +#endif + +} + +void Retina::draw_on_universe(SimpleWindow *window) { + window->color(1.0, 1.0, 1.0); + int xc = int(_eye_x), yc = int(_eye_y); + window->draw_line(xc - _width/2, yc - _height/2, xc + _width/2, yc - _height/2); + window->draw_line(xc + _width/2, yc - _height/2, xc + _width/2, yc + _height/2); + window->draw_line(xc + _width/2, yc + _height/2, xc - _width/2, yc + _height/2); + window->draw_line(xc - _width/2, yc + _height/2, xc - _width/2, yc - _height/2); +} + +void Retina::draw_parameters(int x0, int y0, SimpleWindow *window) { + int n = 0; + int w = _width; + + for(int k = 0; k < int(sizeof(ring_width)/sizeof(int)); k++) { + int s = ring_width[k]; + int z0 = (_width - w)/2; + int z3 = z0 + w; + int z2 = z3 - s; + + for(int x = z0; x < z2; x += s) { + window->color(parameters[n + 0], parameters[n + 1], parameters[n + 2]); + window->fill_rectangle(x0 + x, y0 + z0, s, s); + n += 3; + window->color(parameters[n + 0], parameters[n + 1], parameters[n + 2]); + window->fill_rectangle(x0 + z2, y0 + x, s, s); + n += 3; + window->color(parameters[n + 0], parameters[n + 1], parameters[n + 2]); + window->fill_rectangle(x0 + x + s, y0 + z2, s, s); + n += 3; + window->color(parameters[n + 0], parameters[n + 1], parameters[n + 2]); + window->fill_rectangle(x0 + z0, y0 + x + s, s, s); + n += 3; + } + w -= 2 * s; + } +} diff --git a/retina.h b/retina.h new file mode 100644 index 0000000..f562c49 --- /dev/null +++ b/retina.h @@ -0,0 +1,119 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +#ifndef RETINA_H +#define RETINA_H + +#include +#include + +using namespace std; + +#include "misc.h" +#include "map.h" +#include "universe.h" + +#include "simple_window.h" + +class Retina : public Map { + static const int _width = 512, _height = 512; + + class Tag { + public: + int index; + scalar_t red, green, blue; + Tag *next; + }; + + Universe *_universe; + Tag **_tag_map; + + // We have our own stack of tags to avoid numerous news and deletes + Tag *_tag_stack, *_tag_stack_top; + scalar_t *_red_imap, *_green_imap, *_blue_imap; + int _current_polygon; + scalar_t _eye_x, _eye_y; + + inline void protected_push_tag(int x, int y, scalar_t r, scalar_t g, scalar_t b) { + if(y >= 0 && y < _height) { + if(x < 0) x = 0; + else if(x >= _width) x = _width - 1; + int t = y * _width + x; + _tag_stack_top->next = _tag_map[t]; + _tag_stack_top->index = _current_polygon; + _tag_stack_top->red = r; + _tag_stack_top->green = g; + _tag_stack_top->blue = b; + _tag_map[t] = _tag_stack_top; + _tag_stack_top++; + } + } + + inline void push_tag(int x, int y, scalar_t r, scalar_t g, scalar_t b) { + int t = y * _width + x; + _tag_stack_top->next = _tag_map[t]; + _tag_stack_top->index = _current_polygon; + _tag_stack_top->red = r; + _tag_stack_top->green = g; + _tag_stack_top->blue = b; + _tag_map[t] = _tag_stack_top; + _tag_stack_top++; + } + + inline scalar_t red_sum(int xmin, int ymin, int xmax, int ymax) { + return _red_imap[xmax + (_width + 1) * ymax] + + _red_imap[xmin + (_width + 1) * ymin] + - _red_imap[xmax + (_width + 1) * ymin] + - _red_imap[xmin + (_width + 1) * ymax]; + } + + inline scalar_t green_sum(int xmin, int ymin, int xmax, int ymax) { + return _green_imap[xmax + (_width + 1) * ymax] + + _green_imap[xmin + (_width + 1) * ymin] + - _green_imap[xmax + (_width + 1) * ymin] + - _green_imap[xmin + (_width + 1) * ymax]; + } + + inline scalar_t blue_sum(int xmin, int ymin, int xmax, int ymax) { + return _blue_imap[xmax + (_width + 1) * ymax] + + _blue_imap[xmin + (_width + 1) * ymin] + - _blue_imap[xmax + (_width + 1) * ymin] + - _blue_imap[xmin + (_width + 1) * ymax]; + } + +public: + + inline int width() { return _width; } + inline int height() { return _height; } + inline void set_location(scalar_t x, scalar_t y) { _eye_x = x; _eye_y = y; } + + Retina(Universe *universe); + ~Retina(); + void reset(); + + void draw_polygon(Polygon *p, scalar_t delta_x, scalar_t delta_y); + void fill(); + + void raw_rectangle(unsigned char *image, int xmin, int ymin, int w, int h, + scalar_t red, scalar_t green, scalar_t blue); + + void update_map(); + void draw_on_universe(SimpleWindow *window); + void draw_parameters(int x0, int y0, SimpleWindow *window); + + void save_as_ppm(char *filename); +}; + +#endif diff --git a/simple_window.cc b/simple_window.cc new file mode 100644 index 0000000..449ca36 --- /dev/null +++ b/simple_window.cc @@ -0,0 +1,218 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +// $Id: simple_window.cc,v 1.2 2007-04-24 21:22:52 fleuret Exp $ + +#include "simple_window.h" + +SimpleEvent::SimpleEvent() : type(UNDEFINED) {} + +SimpleWindow::SimpleWindow(char *name, int x, int y, int w, int h) { + + _width = w; _height = h; + + _display = XOpenDisplay(0); + + if (_display) { + + Visual *v = XDefaultVisual(_display, DefaultScreen(_display)); + + _blue_mask = v->blue_mask; + _green_mask = v->green_mask; + _red_mask = v->red_mask; + + if(_blue_mask == 0 || _green_mask == 0 || _red_mask == 0) { + cerr << "Can not deal with the colors on that display.\n"; + } + + _red_shift = 1; + while(!(_red_mask & 1)) { + _red_mask = _red_mask >> 1; + _red_shift = _red_shift << 1; + } + + _green_shift = 1; + while(!(_green_mask & 1)) { + _green_mask = _green_mask >> 1; + _green_shift = _green_shift << 1; + } + + _blue_shift = 1; + while(!(_blue_mask & 1)) { + _blue_mask = _blue_mask >> 1; + _blue_shift = _blue_shift << 1; + } + + _gc = DefaultGC(_display, DefaultScreen(_display)); + + XSetWindowAttributes xswa; + + _pixmap = XCreatePixmap(_display, DefaultRootWindow(_display), + _width, _height, DisplayPlanes(_display, DefaultScreen(_display))); + + xswa.background_pixmap = _pixmap; + xswa.event_mask = ButtonPressMask | ButtonReleaseMask | ButtonMotionMask | KeyPressMask | KeyReleaseMask; + xswa.backing_store = Always; + + _window = XCreateWindow(_display, DefaultRootWindow(_display), x, y, _width, _height, + 0, 0, InputOutput, CopyFromParent, + CWBackPixmap | CWEventMask | CWBackingStore, + &xswa); + + XSizeHints size_hints; + size_hints.flags = PMinSize | PMaxSize | USPosition; + size_hints.x = x; // These two lines do not seem to be required + size_hints.y = y; // ... + size_hints.min_width = _width; + size_hints.min_height = _height; + size_hints.max_width = _width; + size_hints.max_height = _height; + XSetNormalHints(_display, _window, &size_hints); + + XStoreName(_display, _window, name); + + XSetState(_display, _gc, 0, 0, GXcopy, AllPlanes); + XFillRectangle(_display, _pixmap, _gc, 0, 0, _width, _height); + XFlush(_display); + } else abort(); +} + + +SimpleWindow::~SimpleWindow() { + XUnmapWindow(_display, _window); + XDestroyWindow(_display, _window); + XCloseDisplay(_display); +} + +int SimpleWindow::width() { + return _width; +} + +int SimpleWindow::height() { + return _height; +} + +void SimpleWindow::map() { + XMapWindow(_display, _window); + XFlush(_display); +} + +void SimpleWindow::unmap() { + XUnmapWindow(_display, _window); + XFlush(_display); +} + +void SimpleWindow::color(float red, float green, float blue) { + XSetState(_display, _gc, + ((unsigned int) ( red * _red_mask)) * _red_shift + + ((unsigned int) (green * _green_mask)) * _green_shift + + ((unsigned int) ( blue * _blue_mask)) * _blue_shift, + 0, GXcopy, AllPlanes); +} + +void SimpleWindow::draw_point(int x, int y) { + XDrawPoint(_display, _pixmap, _gc, x, y); +} + +void SimpleWindow::draw_line(int x1, int y1, int x2, int y2) { + XDrawLine(_display, _pixmap, _gc, x1, y1, x2, y2); +} + +void SimpleWindow::draw_circle(int x, int y, int r) { + XDrawArc(_display, _pixmap, _gc, x-r, y-r, 2*r, 2*r, 0, 360*64); +} + +void SimpleWindow::draw_text(char *s, int x, int y) { + XDrawString(_display, _pixmap, _gc, x, y, s, strlen(s)); +} + +void SimpleWindow::fill_rectangle(int x, int y, int w, int h) { + XFillRectangle(_display, _pixmap, _gc, x, y, w, h); +} + +void SimpleWindow::fill_polygon(int nb, int *x, int *y) { + XPoint points[nb]; + for(int n = 0; n < nb; n++) { + points[n].x = x[n]; + points[n].y = y[n]; + } + XFillPolygon(_display, _pixmap, _gc, points, nb, Nonconvex, CoordModeOrigin); +} + +void SimpleWindow::show() { + XCopyArea(_display, _pixmap, _window, _gc, 0, 0, _width, _height, 0, 0); + XFlush(_display); +} + +void SimpleWindow::fill() { + XFillRectangle(_display, _pixmap, _gc, 0, 0, _width, _height); +} + +int SimpleWindow::file_descriptor() { + return XConnectionNumber(_display); +} + +SimpleEvent SimpleWindow::event() { + SimpleEvent se; + + if(XPending(_display) > 0) { + + XEvent event; + XNextEvent(_display, &event); + + switch (event.type) { + + case ButtonPress: + se.type = SimpleEvent::MOUSE_CLICK_PRESS; + se.button = event.xbutton.button; + se.x = event.xbutton.x; + se.y = event.xbutton.y; + break; + + case ButtonRelease: + se.type = SimpleEvent::MOUSE_CLICK_RELEASE; + se.button = event.xbutton.button; + se.x = event.xbutton.x; + se.y = event.xbutton.y; + break; + + case MotionNotify: + se.type = SimpleEvent::MOUSE_MOTION; + se.button = event.xbutton.button; + se.x = event.xbutton.x; + se.y = event.xbutton.y; + break; + + case KeyPress: + se.type = SimpleEvent::KEY_PRESS; + strncpy(se.key, + XKeysymToString(XKeycodeToKeysym(_display, event.xkey.keycode, 0)), + (sizeof(se.key)/sizeof(char) - 1)); + break; + + case KeyRelease: + se.type = SimpleEvent::KEY_RELEASE; + strncpy(se.key, + XKeysymToString(XKeycodeToKeysym(_display, event.xkey.keycode, 0)), + (sizeof(se.key)/sizeof(char) - 1)); + break; + + default: + se.type = SimpleEvent::UNDEFINED; + break; + } + } else se.type = SimpleEvent::NO_EVENT; + return se; +} diff --git a/simple_window.h b/simple_window.h new file mode 100644 index 0000000..f42e931 --- /dev/null +++ b/simple_window.h @@ -0,0 +1,79 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +// $Id: simple_window.h,v 1.2 2007-04-24 21:22:52 fleuret Exp $ + +#ifndef SIMPLE_WINDOW_H +#define SIMPLE_WINDOW_H + +#include +#include + +using namespace std; + +#include +#include + +class SimpleEvent { +public: + + enum { + NO_EVENT, + UNDEFINED, + MOUSE_CLICK_PRESS, MOUSE_CLICK_RELEASE, + MOUSE_MOTION, + KEY_PRESS, KEY_RELEASE + } type; + + int x, y, button; + char key[32]; // This is the max length for the pressed key name ('a', 'Alt_L', etc.) + SimpleEvent(); +}; + +class SimpleWindow { + Display *_display; + Window _window; + Pixmap _pixmap; + GC _gc; + +protected: + int _red_mask, _green_mask, _blue_mask; + int _red_shift, _green_shift, _blue_shift; + int _width, _height; + +public: + SimpleWindow(char *name, int x, int y, int w, int h); + virtual ~SimpleWindow(); + + virtual int width(); + virtual int height(); + + virtual void map(); + virtual void unmap(); + virtual void color(float red, float green, float blue); + virtual void draw_point(int x, int y); + virtual void draw_line(int x1, int y1, int x2, int y2); + virtual void draw_circle(int x, int y, int r); + virtual void draw_text(char *s, int x, int y); + virtual void fill_rectangle(int x, int y, int w, int h); + virtual void fill_polygon(int nb, int *x, int *y); + virtual void show(); + virtual void fill(); + + virtual int file_descriptor(); + virtual SimpleEvent event(); +}; + +#endif diff --git a/task.cc b/task.cc new file mode 100644 index 0000000..71002c3 --- /dev/null +++ b/task.cc @@ -0,0 +1,48 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +// $Id: task.cc,v 1.8 2006-07-10 15:19:06 fleuret Exp $ + +#include +#include + +using namespace std; + +#include "task.h" +#include "universe.h" +#include "manipulator.h" + +Task::~Task() { } + +typedef Task *TaskConstructor(); + +Task *load_task(char *filename) { + void *handle = dlopen(filename, RTLD_NOW | RTLD_GLOBAL); + + if(handle == 0) { + cerr << "Error in dynamic loading: " << dlerror() << "." << endl; + exit(1); + } + + TaskConstructor *creator = (TaskConstructor *) dlsym(handle, "new_task"); + + if(creator == 0) { + dlclose(handle); + cerr << "Error looking for function new_task() in " << filename << "." << endl; + exit(1); + } + + return (*creator)(); +} diff --git a/task.h b/task.h new file mode 100644 index 0000000..b472f73 --- /dev/null +++ b/task.h @@ -0,0 +1,51 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +// $Id: task.h,v 1.18 2006-12-17 19:22:19 fleuret Exp $ + +#ifndef TASK_H +#define TASK_H + +#include "misc.h" +#include "simple_window.h" + +class Manipulator; +class Universe; + +class Task { +public: + virtual ~Task(); + // A canonical name for the task, upper caps, digits and "_" + virtual char *name() = 0; + // A task can be started with several degrees of difficulty + virtual int nb_degrees() = 0; + // Returns the size of the area + virtual int width() = 0; + virtual int height() = 0; + // Initializes the world (put polygons with Universe::add_polygon) + virtual void init(Universe *universe, int degree) = 0; + // Updates the world + virtual void update(scalar_t dt, Universe *universe, Manipulator *manipulator) = 0; + // Computes and returns the reward (can be positive or negative) + virtual scalar_t reward(Universe *universe, Manipulator *manipulator) = 0; + // If we need to draw something + virtual void draw(SimpleWindow *window) = 0; +}; + +// Loads a shared object file + +Task *load_task(char *filename); + +#endif diff --git a/test.sh b/test.sh new file mode 100755 index 0000000..77f554d --- /dev/null +++ b/test.sh @@ -0,0 +1,44 @@ +#!/bin/bash + +#============================================================================# +# This program is free software; you can redistribute it and/or # +# modify it under the terms of the GNU General Public License # +# version 2 as published by the Free Software Foundation. # +# # +# This program is distributed in the hope that it will be useful, but # +# WITHOUT ANY WARRANTY; without even the implied warranty of # +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # +# General Public License for more details. # +# # +# Written and (C) by François Fleuret # +# Contact for comments & bug reports # +#============================================================================# + +make -k + +MAIN=./main +TASK=hit_shape.task +DEGREE=0 + +case $1 in + + train) + ${MAIN} --task ${TASK} ${DEGREE} \ + --no-window \ + --nb-training-iterations=1000 \ + --action-mode=random --nb-ticks=5000 \ + --proportion-for-training=1.0 --save-file=dump.mem + ;; + + test) + ${MAIN} --task ${TASK} ${DEGREE} \ + --nb-training-iterations=1000 \ + --action-mode=intelligent \ + --load-file=dump.mem + ;; + + *) + echo "$0 " + exit 1 + +esac diff --git a/universe.cc b/universe.cc new file mode 100644 index 0000000..8d8aa71 --- /dev/null +++ b/universe.cc @@ -0,0 +1,158 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +// $Id: universe.cc,v 1.88 2007-06-16 13:51:54 fleuret Exp $ + +#include "universe.h" + +Universe::Universe(int nb_max_polygons, + scalar_t xmax, scalar_t ymax) : _xmax(xmax), _ymax(ymax), + _nb_max_polygons(nb_max_polygons), _nb_polygons(0) { + _polygons = new Polygon *[_nb_max_polygons]; + for(int n = 0; n < _nb_max_polygons; n++) _polygons[n] = 0; +} + +Universe::~Universe() { + for(int n = 0; n < _nb_polygons; n++) if(_polygons[n]) delete _polygons[n]; + delete[] _polygons; +} + +void Universe::initialize(Polygon *p) { + p->initialize(_nb_max_polygons); +} + +void Universe::clear() { + for(int n = 0; n < _nb_polygons; n++) if(_polygons[n]) delete _polygons[n]; + _nb_polygons = 0; +} + +void Universe::add_polygon(Polygon *p) { + if(_nb_polygons < _nb_max_polygons) { + if(!p->_initialized) { + cerr << "You can not add a non-initialized polygon." << endl; + abort(); + } + _polygons[_nb_polygons++] = p; + } else { + cerr << "To many polygons!" << endl; + exit(1); + } +} + +bool Universe::collide(Polygon *p) { + for(int n = 0; n < _nb_polygons; n++) + if(_polygons[n] && _polygons[n]->collide(p)) return true; + + return false; +} + +void Universe::compute_pseudo_collisions(int nb_axis, int *nb_colliding_axis) { + Couple couples[_nb_polygons * 2]; + int in[_nb_polygons]; + memset((void *) nb_colliding_axis, 0, _nb_polygons * _nb_polygons * sizeof(int)); + + for(int a = 0; a < nb_axis; a++) { + scalar_t alpha = M_PI * scalar_t(a) / scalar_t(nb_axis); + scalar_t vx = cos(alpha), vy = sin(alpha); + + for(int n = 0; n < _nb_polygons; n++) { + scalar_t *x = _polygons[n]->_x, *y = _polygons[n]->_y; + scalar_t min = x[0] * vx + y[0] * vy, max = min; + + for(int v = 1; v < _polygons[n]->_nb_vertices; v++) { + scalar_t s = x[v] * vx + y[v] * vy; + if(s > max) max = s; + if(s < min) min = s; + } + + couples[2 * n + 0].value = min; + couples[2 * n + 0].index = n; + couples[2 * n + 1].value = max; + couples[2 * n + 1].index = n; + } + + qsort((void *) couples, 2 * _nb_polygons, sizeof(Couple), compare_couple); + + int nb_in = 0; + memset((void *) in, 0, _nb_polygons * sizeof(int)); + for(int k = 0; k < 2 * _nb_polygons; k++) { + int i = couples[k].index; + in[i] = !in[i]; + if(in[i]) { + nb_in++; + if(nb_in > 1) { + for(int j = 0; j < i; j++) + if(j != i && in[j]) nb_colliding_axis[j + i * _nb_polygons]++; + for(int j = i+1; j < _nb_polygons; j++) + if(j != i && in[j]) nb_colliding_axis[i + j * _nb_polygons]++; + } + } else nb_in--; + } + } + + for(int i = 0; i < _nb_polygons; i++) { + for(int j = 0; j < i; j++) { + if(nb_colliding_axis[j + i * _nb_polygons] > nb_colliding_axis[i + i * _nb_polygons]) + nb_colliding_axis[i + i * _nb_polygons] = nb_colliding_axis[j + i * _nb_polygons]; + nb_colliding_axis[i + j * _nb_polygons] = nb_colliding_axis[j + i * _nb_polygons]; + } + } +} + +bool Universe::update(scalar_t dt) { + bool result = false; + apply_collision_forces(dt); + for(int n = 0; n < _nb_polygons; n++) if(_polygons[n]) { + _polygons[n]->apply_border_forces(dt, _xmax, _ymax); + result |= _polygons[n]->update(dt); + } + return result; +} + +Polygon *Universe::pick_polygon(scalar_t x, scalar_t y) { + for(int n = 0; n < _nb_polygons; n++) + if(_polygons[n] && _polygons[n]->contain(x, y)) return _polygons[n]; + return 0; +} + +void Universe::print_fig(ostream &os) { + os << "#FIG 3.2" << endl; + os << "Portrait" << endl; + os << "Center" << endl; + os << "Metric" << endl; + os << "A4 " << endl; + os << "100.00" << endl; + os << "Single" << endl; + os << "-2" << endl; + os << "1200 2" << endl; + for(int n = 0; n < _nb_polygons; n++) if(_polygons[n]) _polygons[n]->print_fig(os); +} + +void Universe::draw(SimpleWindow *window) { + for(int n = 0; n < _nb_polygons; n++) if(_polygons[n]) _polygons[n]->draw(window); + for(int n = 0; n < _nb_polygons; n++) if(_polygons[n]) _polygons[n]->draw_contours(window); +} + +void Universe::apply_collision_forces(scalar_t dt) { + const int nb_axis = 2; + int nb_collision[_nb_polygons * _nb_polygons]; + + compute_pseudo_collisions(nb_axis, nb_collision); + + for(int n = 0; n < _nb_polygons; n++) if(_polygons[n]) + for(int m = 0; m < _nb_polygons; m++) + if(m != n && _polygons[m] && nb_collision[n + _nb_polygons * m] == nb_axis) + _polygons[n]->apply_collision_forces(dt, m, _polygons[m]); +} diff --git a/universe.h b/universe.h new file mode 100644 index 0000000..3775daf --- /dev/null +++ b/universe.h @@ -0,0 +1,52 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +// $Id: universe.h,v 1.21 2006-12-17 19:22:19 fleuret Exp $ + +#ifndef UNIVERSE_H +#define UNIVERSE_H + +#include +#include + +using namespace std; + +#include "misc.h" +#include "simple_window.h" +#include "polygon.h" + +class Universe { + scalar_t _xmax, _ymax; +public: + int _nb_max_polygons, _nb_polygons; + Polygon **_polygons; + Universe(int nb_max_polygons, scalar_t xmax, scalar_t ymax); + // The destructor deletes all the added polygons + ~Universe(); + void initialize(Polygon *p); + void clear(); + void add_polygon(Polygon *p); + bool collide(Polygon *p); + // Compute collisions between projections of the polygons on a few + // axis to speed up the computation + void compute_pseudo_collisions(int nb_axis, int *nb_colliding_axis); + void apply_collision_forces(scalar_t dt); + bool update(scalar_t dt); + Polygon *pick_polygon(scalar_t x, scalar_t y); + void print_fig(ostream &os); + void draw(SimpleWindow *window); +}; + +#endif diff --git a/variables.cc b/variables.cc new file mode 100644 index 0000000..5cd1994 --- /dev/null +++ b/variables.cc @@ -0,0 +1,45 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +// $Id$ + +#include "variables.h" + +Variables::Variables() { +} + +Variables::~Variables() { +} + +void Variables::add_default_int(char *name, int value) { +} + +void Variables::add_default_float(char *name, scalar_t value) { +} + +void Variables::add_default_string(char *name, char *value) { +} + +int Variables::get_int_value() { + return 0; +} + +scalar_t Variables::get_float_value() { + return 0.0; +} + +char *Variables::get_string_value() { + return ""; +} diff --git a/variables.h b/variables.h new file mode 100644 index 0000000..7c55599 --- /dev/null +++ b/variables.h @@ -0,0 +1,31 @@ + +//////////////////////////////////////////////////////////////////////////////// +// This program is free software; you can redistribute it and/or // +// modify it under the terms of the GNU General Public License // +// version 2 as published by the Free Software Foundation. // +// // +// This program is distributed in the hope that it will be useful, but // +// WITHOUT ANY WARRANTY; without even the implied warranty of // +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // +// General Public License for more details. // +// // +// Written and (C) by François Fleuret // +// Contact for comments & bug reports // +//////////////////////////////////////////////////////////////////////////////// + +// $Id$ + +#include "misc.h" + +class Variables { + enum VariableType { INT, FLOAT, STRING }; +public: + Variables(); + virtual ~Variables(); + virtual void add_default_int(char *name, int value); + virtual void add_default_float(char *name, scalar_t value); + virtual void add_default_string(char *name, char *value); + virtual int get_int_value(); + virtual scalar_t get_float_value(); + virtual char *get_string_value(); +};