unity炮弹轨迹贝塞尔曲线的简单模拟实现

先转下大佬的csdn

https://blog.youkuaiyun.com/qq_35539447/article/details/80486247?tdsourcetag=s_pctim_aiomsg

 

具体代码

public Vector3 pos0;
    public Vector3 pos1;
    public Vector3 pos2;

    public float time = 3f;
    public float startTime = 0;

    Vector3 Bezier(Vector3 p0, Vector3 p1, Vector3 p2, float t)
    {
        Vector3 p0p1 = (1 - t) * p0 + t * p1;
        Vector3 p1p2 = (1 - t) * p1 + t * p2;
        Vector3 result = (1 - t) * p0p1 + t * p1p2;
        return result;
    }

    void Start()
    {

    }

    void Update()
    {
        if (Vector3.Distance(transform.position, pos2) <= 0.1f)
        {
            return;
        }
        startTime += Time.deltaTime;
        if (startTime > time)
        {
            startTime = 0f;
        }
        Vector3 pos = Bezier(pos0, pos1, pos2, startTime / time);
        transform.position = pos;
    }
}