public bool CheckCollision(Actor actor)
{
obj0 = actor.GetRectBox();
dx = MathUtils.Abs(obj0.GetCenterX() - x);
dy = MathUtils.Abs(obj0.GetCenterY() - y);
dist = MathUtils.Sqrt(dx * dx + dy * dy);
return dist <= this.r;
}
/// <summary>
/// 返回中间距离的Point2D形式
/// </summary>
///
/// <param name="rectangle"></param>
/// <returns></returns>
private static Point GetMiddlePoint(RectBox rectangle)
{
return new Point(rectangle.GetCenterX(), rectangle.GetCenterY());
}