鼠标、手势画线

代码说明：

unity 实现鼠标、移动端手势画线 public class DrawLineByMouse : MonoBehaviour {     public Material mat;     public List vertexPosList= new List();     public List breakFlagList = new List(); //当为真时,需要断开     public Color lineColor;     Vector2 _lastMousePos;     Vector2 _curMousePos;     bool _canDrawLine=false;     bool _mouseButtonHaveUp = false; void OnGUI(){ if (!Input.GetMouseButton(0)) { if (vertexPosList.Count > 1) { _mouseButtonHaveUp = true; } return; } _curMousePos = new Vector2(Input.mousePosition.x / (float)Screen.width, Input.mousePosition.y / (float)Screen.height); if (Vector3.Distance(_lastMousePos,_curMousePos)>0.001f) { vertexPosList.Add(_curMousePos);