/** Update the ball state */
public void Update(float seconds)
{
if (_bounce != null) {
_bounce.Update(seconds);
Position[1] = _bounce.Value;
if (_bounce.Finished)
_bounce = null;
}
if (Ai != null)
Ai.Update(_parent.Ball, this);
if (_display != null)
_display.Data.Position.Set(Position);
}
/** If the ball intersects this paddle */
public bool Intersects(Ball b)
{
var rectA = new Rect(b.Position [0], b.Position [1], b.Width, b.Height / 3);
var rectB = new Rect(Position [0], Position [1], Size [0], Size [1]);
// For rotated test, see:
// http://stackoverflow.com/questions/115426/algorithm-to-detect-intersection-of-two-rectangles
if ((Math.Abs(rectA.x - rectB.x) < (Math.Abs(rectA.width + rectB.width) / 2)) &&
(Math.Abs(rectA.y - rectB.y) < (Math.Abs(rectA.height + rectB.height) / 2))) {
// Also add some bounce, because its shiny
if (_bounce == null) {
_bounce = new nAnim(_display.Data) {
Duration = 0.3f,
Magnitude = Math.Sign(_parent.Ball.Velocity[1]) * 1.5f
};
}
return true;
}
return false;
}