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- Sseakoms 2019-04-15
物体的旋转
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- 慕粉4076385 2016-09-28
- 重点看看rigidbody
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- 慕粉1471053985 2016-09-03
- r
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- 广藿香Patchouli 2016-01-19
- 如果main camera作为player的子节点的话，它会跟着人物旋转，适合第一人称视角，不适合第三人称视角。
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- 寒杨 2015-08-19
- public float speed;//移动速度 public Rigidbody rb; public Camera camera; public float turningSmoothing = 0.3f; private Vector3 facingDirection ; private Plane plan; void Awake () { //垂直与物体y轴的平面 plan = new Plane (transform.up, new Vector3 (2, transform.position.y, 4)); } void Start () { rb = GetComponent<Rigidbody> (); }
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- 寒杨 2015-08-19
- //（系统函数）没daltTime调用一次(通常处理物理运算) void FixedUpdate () { serFaceingDirection (); //使物体朝着鼠标旋转 UpdateRotation (); } //设置旋转的方向(及鼠标在物体运动平面的坐标（x,0,z）) public void serFaceingDirection () { Vector3 mosePosition = transform.TransformPoint (Input.mousePosition); facingDirection = ScreenPointToWorldPointOnPlane (Input.mousePosition, plan, camera); facingDirection.y = transform.position.y; Debug.DrawLine(transform.position,facingDirection); }
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- 寒杨 2015-08-19
- //放回射线与平面相交的点 public Vector3 ScreenPointToWorldPointOnPlane (Vector3 screenPoint, Plane plane, Camera camera) { // Set up a ray corresponding to the screen position Ray ray = camera.ScreenPointToRay (screenPoint); // Find out where the ray intersects with the plane float dist=0f; plane.Raycast(ray ,out dist );//射线与平面相交是放回true，并设置dist的值（及焦点与射线源点的距离） Vector3 vect=ray.GetPoint(dist);//放回沿射线距离为dist的点 return vect; }
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- 寒杨 2015-08-19
- //更新物体的旋转角度（及刚体的角速度） void UpdateRotation () { // Setup player to face facingDirection, or if that is zero, then the movementDirection Vector3 faceDir = facingDirection; // Make the character rotate towards the target rotation if (faceDir == Vector3.zero) { GetComponent<Rigidbody> ().angularVelocity = Vector3.zero; } else { float rotationAngle = AngleAroundAxis (transform.forward, faceDir, Vector3.up); //设置刚体的角速度 GetComponent<Rigidbody> ().angularVelocity = (Vector3.up * rotationAngle * turningSmoothing); } }
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- 寒杨 2015-08-19
- 将老师间的人物跟着鼠标旋转的代码整理了下： // The angle between dirA and dirB around axis(向量a,b以轴axis的夹角) static float AngleAroundAxis (Vector3 dirA, Vector3 dirB, Vector3 axis) { // Project A and B onto the plane orthogonal target axis dirA = dirA - Vector3.Project (dirA, axis);//dirA到轴axis的投影（计算dirA投影在垂直于axis轴的平面的向量） dirB = dirB - Vector3.Project (dirB, axis);//dirB到轴axis的投影（计算dirB投影在垂直于axis轴的平面的向量 // Find (positive) angle between A and B float angle = Vector3.Angle (dirA, dirB);//得到鼠标前后两次位置在平面上的转动的角度 // Return angle multiplied with 1 or -1 return angle * (Vector3.Dot (axis, Vector3.Cross (dirA, dirB)) < 0 ? -1 : 1);//放回的值随夹角的增大而减小 }
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