GameObject GenerateProvinceRegionSurface(int provinceIndex, int regionIndex, Material material, Vector2 textureScale, Vector2 textureOffset, float textureRotation, bool temporary)
{
if (provinceIndex < 0 || provinceIndex >= provinces.Length)
{
return(null);
}
if (provinces [provinceIndex].regions == null)
{
ReadProvincePackedString(provinces [provinceIndex]);
}
if (provinces [provinceIndex].regions == null || regionIndex < 0 || regionIndex >= provinces [provinceIndex].regions.Count)
{
return(null);
}
Province province = provinces [provinceIndex];
Region region = province.regions [regionIndex];
if (!temporary)
{
region.customMaterial = material;
region.customTextureOffset = textureOffset;
region.customTextureRotation = textureRotation;
region.customTextureScale = textureScale;
UpdateSurfaceCount();
}
// Triangulate to get the polygon vertex indices
Poly2Tri.Polygon poly = new Poly2Tri.Polygon(region.latlon);
if (_enableProvinceEnclaves && regionIndex == province.mainRegionIndex)
{
ProvinceSubstractProvinceEnclaves(provinceIndex, region, poly);
}
// Antarctica, Saskatchewan (Canada), British Columbia (Canada), Krasnoyarsk (Russia) - special cases due to its geometry
float step = _frontiersDetail == FRONTIERS_DETAIL.High ? 2f : 5f;
if (steinerPoints == null)
{
steinerPoints = new List <TriangulationPoint> (1000);
}
else
{
steinerPoints.Clear();
}
float x0 = region.latlonRect2D.min.x + step / 2f;
float x1 = region.latlonRect2D.max.x - step / 2f;
float y0 = region.latlonRect2D.min.y + step / 2f;
float y1 = region.latlonRect2D.max.y - step / 2f;
for (float x = x0; x < x1; x += step)
{
for (float y = y0; y < y1; y += step)
{
float xp = x + UnityEngine.Random.Range(-0.0001f, 0.0001f);
float yp = y + UnityEngine.Random.Range(-0.0001f, 0.0001f);
if (region.Contains(xp, yp))
{
steinerPoints.Add(new TriangulationPoint(xp, yp));
// GameObject obj = GameObject.CreatePrimitive(PrimitiveType.Sphere);
// obj.transform.SetParent(WorldMapGlobe.instance.transform, false);
// obj.transform.localScale = Vector3.one * 0.01f;
// obj.transform.localPosition = Conversion.GetSpherePointFromLatLon(new Vector2(x,y)) * 1.01f;
}
}
}
if (steinerPoints.Count > 0)
{
poly.AddSteinerPoints(steinerPoints);
}
P2T.Triangulate(poly);
int flip1, flip2;
if (_earthInvertedMode)
{
flip1 = 2;
flip2 = 1;
}
else
{
flip1 = 1;
flip2 = 2;
}
int triCount = poly.Triangles.Count;
Vector3[] revisedSurfPoints = new Vector3[triCount * 3];
for (int k = 0; k < triCount; k++)
{
DelaunayTriangle dt = poly.Triangles [k];
revisedSurfPoints [k * 3] = Conversion.GetSpherePointFromLatLon(dt.Points [0].X, dt.Points [0].Y);
revisedSurfPoints [k * 3 + flip1] = Conversion.GetSpherePointFromLatLon(dt.Points [1].X, dt.Points [1].Y);
revisedSurfPoints [k * 3 + flip2] = Conversion.GetSpherePointFromLatLon(dt.Points [2].X, dt.Points [2].Y);
}
int revIndex = revisedSurfPoints.Length - 1;
// Generate surface mesh
int cacheIndex = GetCacheIndexForProvinceRegion(provinceIndex, regionIndex);
GameObject surf = Drawing.CreateSurface(SURFACE_GAMEOBJECT, revisedSurfPoints, revIndex, material, region.rect2Dbillboard, textureScale, textureOffset, textureRotation);
surf.transform.SetParent(surfacesLayer.transform, false);
surf.transform.localPosition = Misc.Vector3zero;
if (_earthInvertedMode)
{
surf.transform.localScale = Misc.Vector3one * 0.998f;
}
surfaces [cacheIndex] = surf;
return(surf);
}
void ProvinceSubstractProvinceEnclaves(int provinceIndex, Region region, Poly2Tri.Polygon poly)
{
List <Region> negativeRegions = new List <Region> ();
for (int oc = 0; oc < _countries.Length; oc++)
{
Country ocCountry = _countries [oc];
if (ocCountry.hidden || ocCountry.provinces == null)
{
continue;
}
if (!ocCountry.regionsRect2D.Overlaps(region.latlonRect2D))
{
continue;
}
for (int op = 0; op < ocCountry.provinces.Length; op++)
{
Province opProvince = ocCountry.provinces [op];
if (opProvince == provinces [provinceIndex] || opProvince.hidden)
{
continue;
}
if (opProvince.regions == null)
{
continue;
}
if (opProvince.regionsRect2D.Overlaps(region.latlonRect2D, true))
{
Region oProvRegion = opProvince.regions [opProvince.mainRegionIndex];
if (region.Contains(oProvRegion)) // just check main region of province for speed purposes
{
negativeRegions.Add(oProvRegion);
}
}
}
}
// Collapse negative regions in big holes
// Collapse negative regions in big holes
for (int nr = 0; nr < negativeRegions.Count - 1; nr++)
{
for (int nr2 = nr + 1; nr2 < negativeRegions.Count; nr2++)
{
if (negativeRegions [nr].Intersects(negativeRegions [nr2]))
{
Clipper clipper = new Clipper();
clipper.AddPath(negativeRegions [nr], PolyType.ptSubject);
clipper.AddPath(negativeRegions [nr2], PolyType.ptClip);
clipper.Execute(ClipType.ctUnion, negativeRegions [nr]);
negativeRegions.RemoveAt(nr2);
nr = -1;
break;
}
}
}
// Substract holes
for (int r = 0; r < negativeRegions.Count; r++)
{
Poly2Tri.Polygon polyHole = new Poly2Tri.Polygon(negativeRegions [r].latlon);
poly.AddHole(polyHole);
}
}