public bool isCollidingWith(Collider other)
{
this.UpdatePosition();
other.UpdatePosition();
//if our rectangles don't intersect, then we aren't touching.
if(!firstCollider.Intersects(other.firstCollider))
return false;
int top = Math.Max(this.firstCollider.Top, other.firstCollider.Top);
int bottom = Math.Min(this.firstCollider.Bottom, other.firstCollider.Bottom);
int left = Math.Max(this.firstCollider.Left, other.firstCollider.Left);
int right = Math.Min(this.firstCollider.Right, other.firstCollider.Right);
Color self;
Color them;
//otherwise, check every pixel to find out if we are touching.
for (int y = top; y < bottom; y++)
{
for (int x = left; x < right; x++)
{
self = this.secondCollider[(x - this.firstCollider.Left) +
(y - this.firstCollider.Top) * this.firstCollider.Width];
them = other.secondCollider[(x - other.firstCollider.Left) +
(y - other.firstCollider.Top) * other.firstCollider.Width];
if (self.A != 0 && them.A != 0)
{
return true;
}
}
}
return false;
}
public void RemoveCollider(Collider coll)
{
if (PlayerColliders.Remove(coll))
{
return;
}
if (EnemyColliders.Remove(coll))
{
return;
}
//This would be an error!
Debug.Assert(false, "CollisionManager :: RemoveCollider(Collider coll) => Collider not found.");
return;
}
//Add and Remove colliders
public void AddCollider(Collider coll, Side side)
{
switch (side)
{
case Side.Player:
PlayerColliders.Add(coll);
break;
case Side.Enemy:
EnemyColliders.Add(coll);
break;
default:
System.Console.WriteLine("CollisionManager :: Neutral Collider not added");
break;
}
}
//Virtual Functions
//When this is overloaded, the inheriting class MUST provide a texture!
public virtual void Load(ContentManager Content)
{
Debug.Assert((texture != null), "Texture has not been provided");
size = new Vector2(texture.Width, texture.Height);
collider = new Collisions.Collider(this, texture);
}
