void Start()
{
my_Material.color = Color.red;
My_LineWidth = 15;
g = new GameObject("g");
Vxyz = new Vector3(2, 0, 0);//平行于X轴向量
trianglePos = new trianglePos();
}
protected override void CollectingPoints()
{
if (BegainDraw)
{
if (ScreenshotToolsCrl.instance.LimitDrawArea() == false)
{
return;
}
Vector3 e;//结束点
if (Input.GetMouseButtonDown(0))
{
trianglePos.tr1 = Input.mousePosition;
s = GetNewPoint();
//显示的z轴看自己需求赋值，只要在相机前面就行
//Vector2 SpawnPos;
// RectTransformUtility.ScreenPointToLocalPointInRectangle(ScreenshotToolsCrl.instance.MainCanvas.GetComponent<RectTransform>(), Input.mousePosition, Camera.main, out SpawnPos);
// Debug.Log(SpawnPos);
go = Instantiate(Arrow) as GameObject;
go.transform.SetParent(ScreenshotToolsCrl.instance.ScreenshotToolbar.transform);
go.transform.position = new Vector3(Input.mousePosition.x, Input.mousePosition.y, 0);
go.transform.localRotation = Quaternion.identity;
go.transform.localScale = Vector3.one;
ArrowObject.Add(go);
}
//拖拽便于确定箭头方向
if (Input.GetMouseButton(0))
{
//trianglePos.tr2 = Camera.main.WorldToScreenPoint(go.transform.GetChild(0).position);
//trianglePos.tr3 = Camera.main.WorldToScreenPoint(go.transform.GetChild(1).position);
trianglePos.tr2 = go.transform.GetChild(0).position;
trianglePos.tr3 = go.transform.GetChild(1).position;
// Debug.Log(trianglePos.tr2 + "====" + trianglePos.tr3);
trianglePos.vector = trianglePos.tr3 - trianglePos.tr2;
e = GetNewPoint();
lp = AddLine(lp, s, e, true);
// Vector2 SpawnPos;
// RectTransformUtility.ScreenPointToLocalPointInRectangle(ScreenshotToolsCrl.instance.MainCanvas.GetComponent<RectTransform>(), Input.mousePosition, Camera.main, out SpawnPos);
go.transform.position = new Vector3(Input.mousePosition.x, Input.mousePosition.y, 0);
Vector3 Vangle = lp[lp.Length - 1] - lp[lp.Length - 2]; //最后一条线段
float angle = Vector3.Angle(Vangle, Vxyz) - 90; //三角箭头绕着Z轴旋转 那么就限制与X轴夹角为旋转角度吧
if (Vangle.y > 0)
{
go.transform.eulerAngles = new Vector3(0, 0, angle);
}
else
{
go.transform.eulerAngles = new Vector3(0, 0, 180 - angle);
}
}
if (Input.GetMouseButtonUp(0))
{
if (list == null)
{
list = new List <trianglePos>();
}
list.Add(trianglePos);
trianglePos = new trianglePos();
}
}
}
