private void Update()
{
if (points.Count > 0)
{
polygonData polygon = new polygonData();
for (int i = 0; i < points.Count; i++)
{
polygon.points.Add(points[i].transform.position);
}
polygon.SetMaxMinXY();
lineRenderer.positionCount = polygon.GetDrawList().Length;
lineRenderer.SetPositions(polygon.GetDrawList());
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hitInfo;
if (Physics.Raycast(ray, out hitInfo))
{
Debug.Log(pnpoly(polygon.V3ToV2(hitInfo.point), polygon) + " " + hitInfo.point);
}
}
if (Input.GetKeyDown(KeyCode.P))
{
GameObject go = new GameObject(points.Count.ToString());
go.transform.SetParent(transform);
go.transform.localPosition = Vector3.zero;
points.Add(go);
}
}
private bool pnpoly(Vector2 point, polygonData polygon)
{
if (polygon.maxX < point.x || polygon.maxY < point.y || polygon.minX > point.x || polygon.minY > point.y)
{
Debug.Log(polygon.maxX + " " + polygon.maxY + " " + polygon.minX + " " + polygon.minY);
return(false);
}
List <Vector2> points = polygon.GetPointsV2();
bool isIn = false;
for (int i = 0, j = points.Count - 1; i < points.Count; j = i++)
{
if (((points[i].y > point.y) != (points[j].y > point.y)) &&
(point.x < (points[j].x - points[i].x) * (point.y - points[i].y) / (points[j].y - points[i].y) + points[i].x))
{
isIn = !isIn;
}
}
return(isIn);
}
