if(manipulator->grabbing()) {
for(int k = 0; k < _nb_shapes; k++) if(_shapes[k] == manipulator->grabbing()) {
bool hit = _targets[k];
if(manipulator->grabbing()) {
for(int k = 0; k < _nb_shapes; k++) if(_shapes[k] == manipulator->grabbing()) {
bool hit = _targets[k];