public BoxCollider(float _x, float _y, float _width, float _height)
{
//
// Special BoxCollider that is stationary and will not move
// likke a building or card pile
//
Rectangle _boxToCollide = new Rectangle(_x, _y, _width, _height);
OriginLocal = new Vector2(_x / 2, _y / 2);
boxContainer = new Rectangle(_boxToCollide.x,
_boxToCollide.y,
_boxToCollide.width,
_boxToCollide.height);
CollisionBox = new BoxAABB();
boxContainer.x = (_boxToCollide.x - OriginLocal.X) + 10;
boxContainer.y = (_boxToCollide.y - OriginLocal.Y / 2) + 10;
BoxPoints = new List <Vector2>();
Vector2 topL = new Vector2(boxContainer.x, boxContainer.y);
Vector2 topR = new Vector2(topL.X + boxContainer.width, topL.Y);
Vector2 botL = new Vector2(topL.X, topL.Y + boxContainer.height);
Vector2 botR = new Vector2(topR.X, topR.Y + boxContainer.height);
BoxPoints.Add(topL);
BoxPoints.Add(botL);
BoxPoints.Add(botR);
BoxPoints.Add(topR);
//
// Find the min & max vectors for collision
//
CollisionBox.Fit(BoxPoints); //updates the position of this collider
RenderLayer = Global.BOXCOLLIDER_LAYER; //make sure this is drawn first
fixedCollider = true;
}
public CollisionResult(bool _collided = false)
{
Collided = false;
CompEntity = null;
BoxContainer = new BoxAABB();
CollisionArea = new Rectangle(0, 0, 0, 0);
}
public static bool CollidedWithBox(Entity entity, out CollisionResult _collisionResult)
{
//
// currently not used
//
_collisionResult = new CollisionResult();
//
// Find the Entity in question, if not in database then no collision
//
if (!ColliderCollection.ContainsKey(entity))
{
return(false);
}
//
// Find out what kind of collider entity has?
//
BoxCollider bx = entity.Get <BoxCollider>();
//CircleCollider cx = entity.Get<CircleCollider>();
BoxAABB boxA = bx.CollisionBox;
//Vector2 boxA = new Vector2(bx.CollisionBox.x, bx.CollisionBox.y);
//
// Find entity and ask
//
// Test collision with other "registered" BoxColliders
//
foreach (KeyValuePair <Entity, int> entry in ColliderCollection)
{
if (entry.Key == entity)
{
continue;
}
if (entry.Value != (int)CollidreShape.Box)
{
continue;
}
Entity ent = entry.Key;
bx = ent.Get <BoxCollider>();
if (bx == null) //incase collider was removed
{
return(false);
}
if (boxA.Overlaps(bx.CollisionBox))
{
_collisionResult.CompEntity = entry.Key;
_collisionResult.Collided = true;
//_collisionResult.BoxContainer = entry.Value;
//_collisionResult.CollisionArea = Raylib.GetCollisionRec(boxA, entry.Value);
return(true);
}
}
return(false);
}
/// <summary>
/// Box to check for collisions. Box goes around the image (using scales)
/// </summary>
/// <param name="boxToCollide"></param>
//public BoxCollider(Rectangle _boxToCollide)
// {
// theCenter = new Vector2(_boxToCollide.width * 0.5f, _boxToCollide.height * 0.5f);
// boxContainer = new Rectangle(_boxToCollide.x - theCenter.X,
// _boxToCollide.y - theCenter.Y,
// _boxToCollide.width,
// _boxToCollide.height);
// CollisionBox = new BoxAABB();
// setSceneColliders = false;
// RenderLayer = Global.BOXCOLLIDER_LAYER; //make sure this is drawn first
//}
public BoxCollider(float _width, float _height)
{
Rectangle _boxToCollide = new Rectangle(0, 0, _width, _height);
OriginLocal = new Vector2(_boxToCollide.width * 0.5f, _boxToCollide.height * 0.5f);
boxContainer = new Rectangle(_boxToCollide.x - OriginLocal.X,
_boxToCollide.y - OriginLocal.Y,
_boxToCollide.width,
_boxToCollide.height);
CollisionBox = new BoxAABB();
RenderLayer = Global.BOXCOLLIDER_LAYER; //make sure this is drawn first
fixedCollider = false;
}
//
// Collision box check
//
public bool Overlaps(BoxAABB otherCollider)
{
return(!(max.X < otherCollider.min.X || max.Y < otherCollider.min.Y || min.X > otherCollider.max.X || min.Y > otherCollider.max.Y));
}
//
// Circle check with collision box
//
public bool Overlaps(BoxAABB aabb)
{
Vector2 diff = aabb.ClosestPoint(Center) - Center;
return(DotProduct(diff, diff) <= (Radius * Radius));
}
