CollisionDirection CollisionHandler::HandleCollisionWithRect(unsigned int _objId, sf::FloatRect _ref)
{
DisplayableObject *obj = m_gameEngine->GetForegroundItem(_objId);
CollisionDirection direction = DetectCollisionWithRect(obj->GetCoordinates(), _ref);
ReactToCollision(*obj, _ref, direction);
return direction;
}
CollisionDirection CollisionHandler::DetectCollisionWithObj(MovingObject& _obj, DisplayableObject& _ref)
{
if (_obj.GetID() == _ref.GetID())
return NO_COL;
return DetectCollisionWithRect(_obj.GetCoordinates(), _ref.GetCoordinates());
}
void CollisionHandler::ReactToCollisionsWithObj(MovingObject& _obj, DisplayableObject& _ref, CollisionDirection _direction)
{
ReactToCollision(_obj, _ref.GetCoordinates(), _direction);
_obj.UpdateAfterCollision(Util::OppositeCollisionDirection(_direction), _ref.GetClass()); // Updates the state of the object, not its coordinates
_obj.SetPosition(m_gameEngine->GetCoordinatesOfForegroundItem(_obj.GetID()));
_ref.UpdateAfterCollision(_direction, _obj.GetClass());
SendNewObjectPositionToGFX(_ref);
}
void CollisionHandler::ReactToCollision(DisplayableObject& _obj, sf::FloatRect _refRect, CollisionDirection _direction)
{
sf::FloatRect objRect = _obj.GetCoordinates();
switch (_direction)
{
case TOP:
objRect.top -= (objRect.top + objRect.height - _refRect.top);
break;
case BOTTOM:
objRect.top += (_refRect.top + _refRect.height - objRect.top);
break;
case LEFT:
objRect.left -= (objRect.left + objRect.width - _refRect.left);
break;
case RIGHT:
objRect.left += (_refRect.left + _refRect.width - objRect.left);
break;
case NO_COL:
default:
break;
}
m_gameEngine->UpdateForegroundItem(_obj.GetID(), objRect);
}