/// <summary>
/// Gets a list of regions that overlap with a given region
/// </summary>
public List <Region> GetRegionsOverlap(Region region, bool includeProvinces = false)
{
List <Region> rr = new List <Region> ();
for (int k = 0; k < _countries.Length; k++)
{
Country country = _countries [k];
if (country.regions == null)
{
continue;
}
int rCount = country.regions.Count;
for (int r = 0; r < rCount; r++)
{
Region otherRegion = country.regions [r];
if (region.Intersects(otherRegion))
{
rr.Add(otherRegion);
}
}
}
if (includeProvinces)
{
int provinceCount = provinces.Length; // triggers lazy load
for (int k = 0; k < provinceCount; k++)
{
Province province = _provinces [k];
if (province.regions == null)
{
continue;
}
int rCount = province.regions.Count;
for (int r = 0; r < rCount; r++)
{
Region otherRegion = province.regions [r];
if (region.Intersects(otherRegion))
{
rr.Add(otherRegion);
}
}
}
}
return(rr);
}
public void MergeAdjacentRegions(IAdminEntity entity)
{
// Searches for adjacency - merges in first region
int regionCount = entity.regions.Count;
for (int k = 0; k < regionCount; k++)
{
Region region1 = entity.regions [k];
if (region1 == null || region1.points == null || region1.points.Length == 0)
{
continue;
}
for (int j = k + 1; j < regionCount; j++)
{
Region region2 = entity.regions [j];
if (region2 == null || region2.points == null || region2.points.Length == 0)
{
continue;
}
if (!region1.Intersects(region2))
{
continue;
}
RegionMagnet(region1, region2);
Clipper clipper = new Clipper();
clipper.AddPath(region1, PolyType.ptSubject);
clipper.AddPath(region2, PolyType.ptClip);
clipper.Execute(ClipType.ctUnion);
// Add new neighbours
int rnCount = region2.neighbours.Count;
for (int n = 0; n < rnCount; n++)
{
Region neighbour = region2.neighbours [n];
if (neighbour != null && neighbour != region1 && !region1.neighbours.Contains(neighbour))
{
region1.neighbours.Add(neighbour);
}
}
// Remove merged region
entity.regions.RemoveAt(j);
region1.sanitized = false;
j = k;
regionCount--;
entity.mainRegionIndex = 0; // will need to refresh country definition later in the process
}
}
}
