Unity 3D:如何停止跳伞 [英] Unity 3D: How to stop being able to jump in the air

问题描述

我试图在3D世界中实现在2D精灵上跳跃. 我可以跳得很好，但是我可以一直跳下去，这是我不想要的. 我已经尝试了好几个小时才能找到问题，但仍然无法提出解决方案.

I am trying to achieve jumping on a 2d sprite in 3d world. I can jump fine but I'm able to keep jumping in the air which I do not want. I've been trying to find the problem for hours but still cannot come up with a solution.

{ 
   public float jumpHeight = 5f;
    public static bool isJumping = false;

    void Update()
    {
        if (Input.GetKeyDown(KeyCode.Space) && (isJumping == false))
        {
            gameObject.GetComponent<Rigidbody>().AddForce(new Vector2(0f, jumpHeight), ForceMode.Impulse);
        }
    }

    private void OnCollisionEnter(Collision collision)
    {
        if (collision.collider.tag == "Ground")
        {
            isJumping = false;
        }
    }

    private void OnCollisionExit(Collision collision)
    {
        if (collision.collider.tag == "Ground")
        {
            isJumping = true;
        }
    }
}

我想念什么吗?

推荐答案

将碰撞器作为触发器放置在2D对象上，并检查其是否与地形或地面碰撞.只有那样你才能跳.与地面碰撞的射线也可以这样做.您不需要使用两者，只需跳OnCollisionStay就可以了

Put a collider as trigger on your 2D object and check if it is colliding with the terrain or ground. Only then you can jump. The same could be done with a Ray which collides with the ground. You dont need to use both just jump OnCollisionStay and thats it

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