Unity3D_物体抛物线运动

参考:Unity 贝塞尔曲线实现抛物线运动，投掷功能实现 

用到了DOTween插件, 回想起之前不知道这个插件还在用协程和SmoothDamp做运动控制的自己仿佛是个哈批

代码:

1.  
   using System.Collections;
2.  
   using System.Collections.Generic;
3.  
   using UnityEngine;
4.  
   using DG.Tweening;
5.  
    
6.  
   public class Test : MonoBehaviour
7.  
   {
8.  
   private Vector3 _startPoint = new Vector3(0, 0, 0);//设置原点为起点
9.  
   private float _lineHeight;//抛物线高度
10.  
     
11.  
    public GameObject 炮弹预制体;//抛射物体模型
12.  
    private GameObject _bullet;
13.  
     
14.  
    public LineRenderer lineRender;
15.  
     
16.  
    private bool _moveFinish = true;
17.  
     
18.  
    void Start()
19.  
    {
20.  
    _bullet = Instantiate(炮弹预制体);
21.  
    _bullet.SetActive(false);
22.  
    }
23.  
     
24.  
    void Update()
25.  
    {
26.  
    //从摄像机发出到鼠标位置方向的射线
27.  
    Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
28.  
    RaycastHit hit;
29.  
    LayerMask mask = 1 << (LayerMask.NameToLayer("Floor"));//射线只检测"Floor"图层
30.  
     
31.  
    if (Physics.Raycast(ray, out hit,Mathf.Infinity,mask.value))
32.  
    {
33.  
    GameObject gameobj = hit.collider.gameObject;
34.  
     
35.  
    float Dis = Vector3.Distance(_startPoint, hit.point);
36.  
     
37.  
    _lineHeight = Dis/2;//随距离变化曲率
38.  
     
39.  
    /*绘制抛物线*/
40.  
    var bezierControlPoint = (_startPoint hit.point) * 0.5f (Vector3.up*_lineHeight);
41.  
     
42.  
    int resolution = 50;//曲线上的路径点数量，值越大，取得的路径点越多，曲线越平滑
43.  
     
44.  
    var _path = new Vector3[resolution];
45.  
    for (int i = 0; i < resolution; i )
46.  
    {
47.  
    var t = (i 1) / (float)resolution;//归化到0~1范围
48.  
    _path[i] = GetBezierPoint(t,_startPoint,bezierControlPoint,hit.point);//使用贝塞尔曲线的公式取得t时的路径点
49.  
    }
50.  
     
51.  
    lineRender.positionCount = _path.Length;
52.  
    lineRender.SetPositions(_path);
53.  
     
54.  
    if(Input.GetMouseButtonDown(0))
55.  
    {
56.  
    if (_moveFinish)
57.  
    {
58.  
    _bullet.transform.position = _startPoint;
59.  
    _bullet.SetActive(true);
60.  
    _bullet.transform.DOPath(_path, 1f).SetEase(Ease.OutSine).OnComplete(MoveCallback);
61.  
    _moveFinish = false;
62.  
    }
63.  
    }
64.  
    }
65.  
    }
66.  
     
67.  
    void MoveCallback()
68.  
    {
69.  
    _moveFinish = true;
70.  
    }
71.  
     
72.  
    /// <param name="t">0到1的值，0获取曲线的起点，1获得曲线的终点</param>
73.  
    /// <param name="start">曲线的起始位置</param>
74.  
    /// <param name="center">决定曲线形状的控制点</param>
75.  
    /// <param name="end">曲线的终点</param>
76.  
    public static Vector3 GetBezierPoint(float t, Vector3 start, Vector3 center, Vector3 end)
77.  
    {
78.  
    return (1 - t) * (1 - t) * start 2 * t * (1 - t) * center t * t * end;
79.  
    }
80.  
    }

路径绘制使用的LineRenderer

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