Question

我想使用我的Vector3f类开始在Java中进行碰撞检测计算但是， centerDistance 的分配声明（请参阅下面的代码）会显示错误：The operator - is undefined for the argument type (Vector3f)。
我想在我的技能水平上，我无法弄清楚问题是什么。有没有人可能有线索？

public class BoundingSphere {

    private Vector3f m_center;
    private float m_radius;

    public BoundingSphere(Vector3f center, float radius) {
        this.m_center = center;
        this.m_radius = radius;
    }

    public IntersectData IntersectBoundingSphere(BoundingSphere other) {
        float radiusDistance = m_radius + other.m_radius;
        float centerDistance = (other.getM_center() - m_center).length();
        float distance = centerDistance - radiusDistance;

        return IntersectData(centerDistance < radiusDistance, distance);
    }

    public Vector3f getM_center() {
        return m_center;
    }

    public void setM_center(Vector3f m_center) {
        this.m_center = m_center;
    }

    public float getM_radius() {
        return m_radius;
    }

    public void setM_radius(float m_radius) {
        this.m_radius = m_radius;
    }

}

Answer 1

对象不支持Java中的算术运算符。你必须制作一个加，减等方法

示例：

public Vector3f add(Vector3f operand) { 
    //...
    return this;
}

public Vector3f sub(Vector3f operand) { 
    //...
    return this;
}

然后你拨打other.getM_center().sub(m_center).length()

使用Java中的Vector3f进行碰撞检测操作

1 个答案: