bool Environment::ray_tracing(const double p[2], const double direction, double& out_distance, double &out_alpha, int*stuff_id) const {
int champion = -1;
double champion_range, champion_alpha;
for(size_t i=0;i<stuff.size();i++) {
Stuff * s = stuff.at(i);
double range, alpha;
if(s->ray_tracing(p,direction,range,alpha)){
if(champion==-1 || range<champion_range) {
champion = i;
champion_range = range;
champion_alpha = alpha;
}
}
}
if(champion != -1) {
*stuff_id = champion;
out_distance = champion_range;
out_alpha = champion_alpha;
return true;
} else {
return false;
}
}
