如何沿着曲线改变游戏对象的角度(Unity2D)

时间:2014-12-02 10:07:27

标签: unity3d angle curve motion gameobject

我试图沿着曲线移动一个游戏对象。除此之外,我想相应地改变那个游戏对象的角度。

以下是我的代码。但它不能正常工作:

公共类CharacterController:MonoBehaviour {

Vector3 prevPos, currentPos;
Vector3 perpPos;

// Use this for initialization
void Start () {
    Debug.Log ("Character Controller start method");
    prevPos = gameObject.transform.position;
    currentPos = gameObject.transform.position;
}

// Update is called once per frame
void Update () {
    currentPos = this.transform.position;
    perpPos = new Vector3 (currentPos.x, prevPos.y, 0.0f);
    //Debug.Log ("perpPos" + perpPos);
    float perpDist = Vector3.Distance (perpPos, currentPos);
    float baseDist = Vector3.Distance (prevPos, perpPos);
    //Debug.Log ("perpDist " + perpDist);
    //Debug.Log ("baseDist " + baseDist);
    float angle = Mathf.Tan (perpDist / baseDist);
    angle = angle * Mathf.Rad2Deg;
    Debug.Log ("angle " + angle);
    gameObject.transform.rotation = Quaternion.Euler (0,0, angle);
    this.transform.eulerAngles = new Vector3 (0, 0, angle);
    //Debug.Log ("angle " + angle);

    //Quaternion rot=new Quaternion();
    //rot.eulerAngles = new Vector3(0, 0, angle);
    //transform.rotation=rot;

    prevPos = currentPos;

}

}

在这里,我获得了游戏对象的先前位置和当前位置。计算第3个点,这样我就可以得到2个单独向量的垂直和基数。从那里我使用tan(Theta)= perp / base公式计算角度。但这似乎并不顺利。

如果有人可以帮忙吗?

0 个答案:

没有答案