void CollisionManager::perform_collision_bullet(vector<WorldObject*> victims,
vector<Projectile*> bullets) {
vector<WorldObject*>::iterator victims_it;
vector<Projectile*>::iterator bullets_it;
if (bullets.size() < 1) {
return;
}
if (victims.size() < 1) {
return;
}
for (victims_it = victims.begin(); victims_it != victims.end(); victims_it++) {
WorldObject* victim = (*victims_it);
if (!victim->getcollisionable()) {
continue;
}
// check collision for each bullet
for (bullets_it = bullets.begin(); bullets_it != bullets.end(); bullets_it++) {
Projectile* bullet = (*bullets_it);
if ((bullet->getx() >= (victim->getx() - MAX_DISTANCE_FOR_COLLISION))
&& (bullet->gety() >= (victim->gety() - MAX_DISTANCE_FOR_COLLISION))) {
int bullet_min_x = bullet->getx();
int bullet_min_y = bullet->gety();
int bullet_max_x = bullet->getx() + bullet->getwidth();
int bullet_max_y = bullet->gety() + bullet->getheight();
int victim_min_x = victim->getx();
int victim_min_y = victim->gety();
int victim_max_x = victim->getx() + victim->getsurface()->w;
int victim_max_y = victim->gety() + victim->getsurface()->h;
if (((bullet_max_x > victim_min_x) &&
(bullet_max_y > victim_min_y) &&
(bullet_min_x < victim_max_x) &&
(bullet_min_y < victim_max_y)) ||
(bullet_min_x < 0 ||
bullet_max_x > DrawEngine::get_screen_width() ||
bullet_min_y < 0 ||
bullet_max_y > DrawEngine::get_screen_height())) {
// remove the bullet
GarbageCollector::add_deletion_queue(bullet);
}
}
if ((bullet->getx() > (bullet->getorgx() + 300)) ||
(bullet->gety() > (bullet->getorgy() + 300))) {
// if the bullet has been fired over 300 px, lets delete
GarbageCollector::add_deletion_queue(bullet);
}
}
}
}
KeyAction* CollisionManager::perform_collision_detection(
vector<WorldObject*> victims, MovableObject* ai, KeyAction* key_action) {
vector<WorldObject*>::iterator it;
// loop through all objects in the world, and detect a collision (if one exists)
for (it = victims.begin(); it != victims.end(); it++) {
WorldObject* victim = *it;
if (!victim->getcollisionable())
continue;
if (((ai->getx() >= (victim->getx() - MAX_DISTANCE_FOR_COLLISION))
&& (ai->gety() >= (victim->gety() - MAX_DISTANCE_FOR_COLLISION)))
|| (ai->getx() < 0)
|| (ai->gety() < 0)
|| ((ai->getx() + ai->getsurface()->w) > DrawEngine::get_screen_width())
|| ((ai->gety() + ai->getsurface()->h) > DrawEngine::get_screen_height())) {
// get the size and position of victim
int victim_height = victim->getsurface()->h;
int victim_width = victim->getsurface()->w;
int victim_max_x = victim->getx() + victim_width;
int victim_max_y = victim->gety() + victim_height;
int ai_min_x = ai->getx();
int ai_min_y = ai->gety();
int ai_max_x = ai->getx() + ai->getsurface()->w;
int ai_max_y = ai->gety() + ai->getsurface()->h;
if ((((ai_max_x > victim->getx())
&& (ai_min_x < victim_max_x)
&& (ai_max_y > victim->gety())
&& (ai_min_y < victim_max_y)))
|| ((ai_min_x < 0)
|| (ai_max_x > DrawEngine::get_screen_width())
|| (ai_min_y < 0)
|| (ai_max_y > DrawEngine::get_screen_height()))) {
// we have a collision
if ((((ai_max_x > (victim->getx() + ai->getmovespeed()))
&& ((ai_min_y < (victim_max_y - ai->getmovespeed()))
&& (ai_max_y > (victim->gety() + ai->getmovespeed())))))
|| (ai_min_x < 0)) {
key_action->player_direction &= ~KeyAction::LEFT;
}
if (((ai_max_x >= victim->getx()
&& (ai_min_x < (victim_max_x - ai->getmovespeed()))
&& (ai_min_y < (victim_max_y - ai->getmovespeed())
&& (ai_max_y > (victim->gety() + ai->getmovespeed())))))
||(ai_max_x > DrawEngine::get_screen_width())) {
key_action->player_direction &= ~KeyAction::RIGHT;
}
if (((ai_min_y < victim_max_y
&& (ai_min_y > victim->gety())
&& (ai_min_x < (victim_max_x - ai->getmovespeed())
&& (ai_max_x > (victim->getx() + ai->getmovespeed())))))
|| (ai_min_y < 0)) {
key_action->player_direction &= ~KeyAction::UP;
}
if (((ai_max_y > victim->gety()
&& (ai_min_y < (victim_max_y - ai->getmovespeed()))
&& (ai_min_x < (victim_max_x - ai->getmovespeed())
&& (ai_max_x > (victim->getx() + ai->getmovespeed())))))
|| (ai_max_y > DrawEngine::get_screen_height())) {
key_action->player_direction &= ~KeyAction::DOWN;
}
}
}
victim = NULL;
}
return key_action;
}