VR 射线瞬移

VR实现瞬移效果，并且绘制瞬移曲线

上代码，代码先对简单

public Transform player;public Transform mark;public float rayLength = 5;private LineRenderer lineRenderer;private Vector3[] linePoints;private Vector3 targetPoint;private void Start(){lineRenderer = GetComponent<LineRenderer>();linePoints = new Vector3[3];}private void Update(){if (Input.GetKey(KeyCode.Space)){Ray ray = new Ray(transform.position, transform.forward);RaycastHit hit;linePoints[0] = transform.position;if (Physics.Raycast(ray, out hit, rayLength)){linePoints[2] = hit.point;linePoints[1] = transform.position + (Vector3.ProjectOnPlane(transform.forward, Vector3.up)) * (linePoints[2] - linePoints[0]).magnitude;targetPoint = linePoints[2] + Vector3.up * player.position.y;}else{ray = new Ray(transform.position + transform.forward * rayLength, Vector3.down);if (Physics.Raycast(ray, out hit, rayLength + Mathf.Abs(transform.position.y))){linePoints[2] = hit.point;linePoints[1] = transform.position + transform.forward * ((linePoints[2] - linePoints[0]).magnitude);targetPoint = linePoints[2] + Vector3.up * player.position.y;}else{linePoints[2] = ray.origin + ray.direction * rayLength;Vector3 middlePoint = transform.position + transform.forward * ((linePoints[2] - linePoints[0]).magnitude);linePoints[1] = middlePoint;}}mark.position = linePoints[2];mark.rotation = Quaternion.Euler(Vector3.zero);DrawLineRenderCurve(lineRenderer, linePoints);}else{if (Input.GetKeyUp(KeyCode.Space)){player.position = targetPoint;lineRenderer.positionCount = 0;mark.position = linePoints[2] * 1000;}}}//绘制曲线private void DrawLineRenderCurve(LineRenderer lineRenderer, Vector3[] points){for (int i = 1; i <= 50; i++){float t = i / (float)50;Vector3 pixel = CalculateBezierPoint(t, points[0], points[1], points[2]);lineRenderer.positionCount = i;if (i == 1){lineRenderer.SetPosition(i - 1, points[0]);}else{lineRenderer.SetPosition(i - 1, pixel);}}}/// <summary>/// 计算二阶贝塞尔曲线的点 公式 （1-t）*(1-t)*p0+2t*(1-t)*p1+t*t*p2   t属于[0,1]/// </summary>/// <param name="t">  0<t<1 </param>/// <param name="p0">起点</param>/// <param name="p1">中点</param>/// <param name="p2">结束点</param>/// <returns></returns>internal static Vector3 CalculateBezierPoint(float t, Vector3 p0, Vector3 p1, Vector3 p2){float u = 1 - t;float tt = t * t;float uu = u * u;return uu * p0 + 2 * u * t * p1 + tt * p2;}

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