public ButtonForm(Collidable collider, bool keepTime = true)
: base(keepTime)
{
Collider = collider;
CollidingWithMouse = false;
MouseCollidingFor = 0;
MouseNotCollidingFor = 0;
}
/// <summary>
/// Check for a collision between this Collidable object and another.
/// </summary>
/// <param name="other"></param>
/// <returns></returns>
public CollisionResponse CollidingWith(Collidable other)
{
return InternalChecker.CollisionBetween(this, other);
}
/// <summary>
/// Check for a collision between a Collidable object and another object of arbitrary
/// type. This allows Collidable subclasses to implement collision methods for objects
/// that aren't necessarily Collidable objects (for example, PointCollider implements
/// a collision method for Point and Vector2, even though they don't inherit from
/// Collidable).
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns></returns>
public static CollisionResponse CollisionBetween(Collidable a, object b)
{
try
{
return DynamicCollisionBetween(a, b);
}
catch (RuntimeBinderException)
{
return null;
}
}
/// <summary>
/// Check for a collision between two Collidable objects.
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns></returns>
public static CollisionResponse CollisionBetween(Collidable a, Collidable b)
{
try
{
var abb = a.BoundingBox();
var bbb = b.BoundingBox();
// If their bounding boxes don't collide, the geometries themselves
// can't be colliding either.
if (!RectUtils.Collision(
abb[0], abb[1], abb[2], abb[3],
bbb[0], bbb[1], bbb[2], bbb[3]))
return new CollisionResponse(a, b, false);
if (a.Precedence >= b.Precedence)
return DynamicCollisionBetween(a, b);
return DynamicCollisionBetween(b, a);
}
catch (RuntimeBinderException)
{
// This occurs when the object with higher precedence doesnt implement
// a CollidingWith method for the object with the lower precedence.
return new CollisionResponse(a, b, false);
}
}
public CollisionResponse(Collidable a, Collidable b, bool colliding)
{
ColliderA = a;
ColliderB = b;
Colliding = colliding;
}