public override void HandleCollision(GameObject var)
{
Vector2 placeHolderThis = movement;
Vector2 placeHolderVar = var.Movement;
movement = placeHolderVar;
var.Movement = placeHolderThis;
}
//Returns an 0 vector if there is no collision
//Returns a unit vector for the tangent line of intersection
public Vector2 Intersects(GameObject var)
{
//Check to see if a collision occurs
//This is a simple task of checking position vs the sum of the radii
//There is a collision
if (this.Radius + var.Radius > (this.Position - var.Position).Length())
{
//Find a normal vector for the tangent line
Vector2 unitTangent = this.Position - var.Position;
unitTangent.Normalize();
Matrix rotMat = Matrix.CreateRotationZ(MathHelper.PiOver2);
unitTangent = Vector2.Transform(unitTangent, rotMat);
//Calculate retraction
this.Position -= this.Movement;
var.Position -= var.Movement;
return unitTangent;
}
//If this line is reached, there was no collision and we return the empty vector
return Vector2.Zero;
}
public virtual void HandleCollision(GameObject var)
{
}
private void DrawObject(GameObject var)
{
spriteBatch.Draw(var.Sheet.Image, var.Position, null, Color.White, var.Angle, new Vector2(var.Radius, var.Radius), 1, SpriteEffects.None, 1);
}