Java 边界球体碰撞不起作用

我试图在我的LWJGL游戏中实现模型之间的碰撞，但似乎对象处于不断的碰撞中，即使碰撞半径仅为0。我已将碰撞代码放在下面，并提供了一个链接，指向我用来帮助处理边界球体碰撞的源

package model;

import org.lwjgl.util.vector.Vector3f;

public class BoundingSphere {

    private Vector3f mid = new Vector3f();
    private float radius;

    public BoundingSphere(Vector3f midpoint, float radius) {
         this.mid = midpoint;
         this.radius = radius;
    }

    public boolean isColliding(BoundingSphere other){
        float diffX = (other.mid.x - mid.x);
        float diffY = (other.mid.y - mid.y);
        float diffZ = (other.mid.z - mid.z);

        float diffXSquared = (float) Math.pow(diffX, 2);
        float diffYSquared = (float) Math.pow(diffY, 2);
        float diffZSquared = (float) Math.pow(diffZ, 2);

        float radiusSums = (other.radius + radius);
        float radiusSumsSquared = (float)Math.pow(radiusSums, 2);

        if (diffXSquared + diffYSquared + diffZSquared > radiusSumsSquared){
            return true;
        }
        else{
            return false;
        }

    }

}

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您似乎已将该条件颠倒过来。只有在以下情况下才会发生碰撞：

((x2 + y2 + z2) <= r2)

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（（x2+y2+z2）非常感谢！我在白板上画了出来，果然，当两个圆之间的距离小于其半径的平方时，就会发生碰撞！