交点算法与Rectangle.intersects（Rectangle r）的区别

Question

Someone on a forum I go to said I shouldn't use Rectangle.intersects for my collision detection, and I should use this algorithm instead:

boolean rectangleIntersects(float rect1x, float rect1y, float rect1w, 
                            float rect1h, float rect2x, float rect2y, 
                            float rect2w, float rect2h)
{
    return (rect1x + rect1w >= rect2x &&
            rect1y + rect1h >= rect2y &&
            rect1x <= rect2x + rect2w &&
            rect1y <= rect2y + rect2h);
}

But isn't the Rectangle.intersects algorithm different, and better than this?

Answer 1

Rectangle.intersects基本相同，除了您的算法使用float而不是double并包括边界的相等条件。