public static void ExtractCenter(EPMDelaunayTerrain terrain, List <List <Vector2d> > pointList, EPMPoint.PointType oldType, EPMPoint.PointType newType, double halfWidth)
{
List <EPMTriangle> intersectList = new List <EPMTriangle>();
List <EPMTriangle> oldTypeList = terrain.ExtractTriangles_ByTypes(null, EPMPoint.GenerateTypesInt(false, oldType));
for (int i = 0; i < pointList.Count; i++)
{
List <Vector2d> lineSet = pointList[i];
for (int j = 0; j < lineSet.Count; j++)
{
intersectList.AddRange(terrain.ExtractTriangles_PointsInCircle(lineSet[j], halfWidth, 1, oldTypeList));
if (j >= 1)
{
Vector2d dir = lineSet[j] - lineSet[j - 1];
dir.Normalize();
Vector2d normal = new Vector2d(-dir.y, dir.x);
intersectList.AddRange(terrain.ExtractTriangles_PointsInLineWithDistance(lineSet[j - 1] - dir * halfWidth, lineSet[j] + dir * halfWidth, halfWidth, 1, oldTypeList));
intersectList.AddRange(terrain.ExtractTriangles_IntersectLine(lineSet[j - 1] + normal * halfWidth - dir * halfWidth, lineSet[j] + normal * halfWidth + dir * halfWidth, oldTypeList));
intersectList.AddRange(terrain.ExtractTriangles_IntersectLine(lineSet[j - 1] - normal * halfWidth - dir * halfWidth, lineSet[j] - normal * halfWidth + dir * halfWidth, oldTypeList));
}
}
}
for (int i = 0; i < intersectList.Count; i++)
{
EPMTriangle t = (EPMTriangle)intersectList[i];
t.g_pointList[0].g_type = newType;
t.g_pointList[1].g_type = newType;
t.g_pointList[2].g_type = newType;
t.SetType(newType);
}
intersectList.Clear();
CheckAndSetTileTypeByNeighbor(terrain, oldType, newType, newType);
}
public static void CheckAndSetTileTypeByNeighbor(EPMDelaunayTerrain terrain, int checkTypeEnum, int neighborTypeEnum, EPMPoint.PointType newTypeForPassCheck, EPMPoint.PointType newTypeForNotPassCheck, bool processNotPassChcek = true, int minNeighborCount = 2, bool shareEdge = true, bool alsoSetPointsType = false)
{
List <EPMTriangle> triangleList = terrain.ExtractTriangles_ByTypes(null, checkTypeEnum);
if (shareEdge)
{
for (int i = 0; i < triangleList.Count; i++)
{
EPMTriangle t = (EPMTriangle)triangleList[i];
int count = 0;
for (int j = 0; j < t.g_shareEdgeNeighbors.Count; j++)
{
if (t.g_shareEdgeNeighbors[j].HasShapeType(neighborTypeEnum))
{
count++;
}
if (count >= minNeighborCount)
{
t.g_visited = true;
break;
}
}
}
}
else
{
for (int i = 0; i < triangleList.Count; i++)
{
EPMTriangle t = (EPMTriangle)triangleList[i];
int count = 0;
for (int j = 0; j < t.g_sharePointNeighbors.Count; j++)
{
if (t.g_sharePointNeighbors[j].HasShapeType(neighborTypeEnum))
{
count++;
}
if (count >= minNeighborCount)
{
t.g_visited = true;
break;
}
}
}
}
for (int i = 0; i < triangleList.Count; i++)
{
EPMTriangle t = triangleList[i];
if (t.g_visited)
{
t.g_visited = false;
t.SetType(newTypeForPassCheck);
if (alsoSetPointsType)
{
t.g_pointList[0].g_type = newTypeForPassCheck;
t.g_pointList[1].g_type = newTypeForPassCheck;
t.g_pointList[2].g_type = newTypeForPassCheck;
}
}
else if (processNotPassChcek)
{
t.SetType(newTypeForNotPassCheck);
if (alsoSetPointsType)
{
t.g_pointList[0].g_type = newTypeForNotPassCheck;
t.g_pointList[1].g_type = newTypeForNotPassCheck;
t.g_pointList[2].g_type = newTypeForNotPassCheck;
}
}
}
}
public static void ExtractSide(EPMDelaunayTerrain terrain, EPMPoint.PointType oldType, EPMPoint.PointType sideType, double inLength = 2f)
{
List <EPMTriangle> list = terrain.ExtractTriangles_ByTypes(null, EPMPoint.GenerateTypesInt(false, oldType));
List <EPMPoint> allPoints = terrain.ExtractPoints_All();
List <EPMTriangle> sideList = new List <EPMTriangle>();
int groundEnum = EPMPoint.GetGroundEnums();
for (int i = 0; i < list.Count; i++)
{
EPMTriangle t = (EPMTriangle)list[i];
int count = 0;
int ep1, ep2;
ep1 = ep2 = 0;
for (int j = 0; j < t.g_shareEdgeNeighbors.Count; j++)
{
//The edge has an ground tile neighbor.
if (t.g_shareEdgeNeighbors[j].HasShapeType(groundEnum))
{
count++;
t.GetShareEdge((EPMTriangle)t.g_shareEdgeNeighbors[j], out ep1, out ep2);
}
}
if (count == 1)
{
if (!t.g_visited)
{
sideList.Add(t);
t.g_visited = true;
}
int ep3 = t.g_sortedIndexList[0];
if (ep3 == ep1 || ep3 == ep2)
{
ep3 = t.g_sortedIndexList[1];
}
if (ep3 == ep1 || ep3 == ep2)
{
ep3 = t.g_sortedIndexList[2];
}
Vector2d p1, p2, p3;
p1 = allPoints[ep1].pos2d;
p2 = allPoints[ep2].pos2d;
p3 = allPoints[ep3].pos2d;
Vector2d dir = p2 - p1;
Vector2d normal = new Vector2d(-dir.y, dir.x);
normal.Normalize();
if ((p3 - p1) * normal < 0)
{
normal = -normal;
}
for (int k = 0; k < t.g_shareEdgeNeighbors.Count; k++)
{
if (t.g_shareEdgeNeighbors[k].HasShapeType(oldType))
{
EPMTriangle nei = (EPMTriangle)t.g_shareEdgeNeighbors[k];
if (nei.g_visited == false)
{
nei.g_visited = true;
sideList.Add(nei);
}
for (int j = 0; j < nei.g_sharePointNeighbors.Count; j++)
{
EPMTriangle t2 = (EPMTriangle)nei.g_sharePointNeighbors[j];
if (t2.HasShapeType(oldType) && t2.g_visited == false)
{
Vector2d v2 = t2.g_pointList[0].pos2d;
double dot = (v2 - p1) * normal;
if (dot >= inLength)
{
continue;
}
v2 = t2.g_pointList[1].pos2d;
dot = (v2 - p1) * normal;
if (dot >= inLength)
{
continue;
}
v2 = t2.g_pointList[2].pos2d;
dot = (v2 - p1) * normal;
if (dot >= inLength)
{
continue;
}
t2.g_visited = true;
sideList.Add((EPMTriangle)nei.g_sharePointNeighbors[j]);
}
}
}
}
}
}
for (int i = 0; i < sideList.Count; i++)
{
sideList[i].SetType(sideType);
}
for (int i = 0; i < list.Count; i++)
{
EPMTriangle t = (EPMTriangle)list[i];
if (t.HasShapeType(sideType))
{
continue;
}
bool finded = true;
for (int j = 0; j < t.g_shareEdgeNeighbors.Count; j++)
{
if (t.g_shareEdgeNeighbors[j].HasShapeType(oldType))
{
finded = false;
break;
}
}
if (finded)
{
t.SetType(sideType);
}
}
for (int i = 0; i < list.Count; i++)
{
list[i].g_visited = false;
}
}