// double sided wall?!
double CollisionDetection ( // returns crossFraction...
ParticleSystem p,
const Vec &state_old, // state (t)
const Vec &state_new, // state (t+dt)
int &wall, int &par // the (first) colliding particle and corresponding wall
)
{
Vec3 pos, oldpos;
double crossFraction, t; // fraction: [0,1]
// find the first collision (if any)
crossFraction = 1.0; // any constant > 1.0
wall = par = -1;
for (int i = 0; i < p->planes.size(); i++) {
for (int j = 0; j < p->particles.size(); j++) {
pos = Vec3 (state_new[6*j+0], state_new[6*j+1], state_new[6*j+2]);
if (OutOfBound (pos, p->planes[i])) {
oldpos = Vec3 (state_old[6*j+0], state_old[6*j+1], state_old[6*j+2]);
t = GetCrossFraction (p->planes[i], oldpos, pos);
if (t > 0 && t < crossFraction) {
crossFraction = t;
// record: i, j
wall = i, par = j;
}
}
}
}
// if all in bound, return 1.0 (acknowledge the newpos)
// and *wall is -1
return crossFraction;
}
void list<T>::pop_back(){
if(size_ <= 0)
throw OutOfBound();
Node *tmp = tail_->prev_;
tmp->prev_->next_ = tmp->next_;
tmp->next_->prev_ = tmp->prev_;
delete tmp;
size_--;
}
void list<T>::pop_front(){
if(size_ <= 0)
throw OutOfBound();
Node *tmp = head_->next_;
tmp->prev_->next_ = tmp->next_;
tmp->next_->prev_ = tmp->prev_;
delete tmp;
size_--;
}
Droga* Kontener::RetDroga(unsigned int id)
{
if(id>=itsDrogi.size())
throw OutOfBound("Kontener::RetDroga: id="+id);
return &itsDrogi[id];
};
typename list<T>::iterator& list<T>::iterator::operator--(){
pointer_ = pointer_->prev_;
if (pointer_->prev_ == NULL)
throw OutOfBound();
return *this;
}
