//Is a polygon One inside polygon Two?
private static bool IsPolygonInsidePolygon(List <MyVector2> polyOne, List <MyVector2> polyTwo)
{
bool isInside = false;
for (int i = 0; i < polyOne.Count; i++)
{
if (Intersections.PointPolygon(polyTwo, polyOne[i]))
{
//Is inside if at least one point is inside the polygon. We run this method after we have tested
//if the polygons are intersecting
isInside = true;
break;
}
}
return(isInside);
}
//Mark entry exit points
private static void MarkEntryExit(List <ClipVertex> poly, List <MyVector2> clipPolyVector)
{
//First see if the first vertex starts inside or outside (we can use the original list)
bool isInside = Intersections.PointPolygon(clipPolyVector, poly[0].coordinate);
//Debug.Log(isInside);
ClipVertex currentVertex = poly[0];
ClipVertex firstVertex = currentVertex;
int safety = 0;
while (true)
{
if (currentVertex.isIntersection)
{
//If we were outside, this is an entry
currentVertex.isEntry = isInside ? false : true;
//Now we know we are either inside or outside
isInside = !isInside;
}
currentVertex = currentVertex.next;
//We have travelled around the entire polygon
if (currentVertex.Equals(firstVertex))
{
break;
}
safety += 1;
if (safety > 100000)
{
Debug.Log("Endless loop in mark entry exit");
break;
}
}
}
