public Region TryGenerateRegionFrom(IntVec3 root)
{
RegionType expectedRegionType = root.GetExpectedRegionType(this.map);
if (expectedRegionType == RegionType.None)
{
return(null);
}
if (this.working)
{
Log.Error("Trying to generate a new region but we are currently generating one. Nested calls are not allowed.");
return(null);
}
this.working = true;
try
{
this.regionGrid = this.map.regionGrid;
this.newReg = Region.MakeNewUnfilled(root, this.map);
this.newReg.type = expectedRegionType;
if (this.newReg.type == RegionType.Portal)
{
this.newReg.portal = root.GetDoor(this.map);
}
this.FloodFillAndAddCells(root);
this.CreateLinks();
this.RegisterThingsInRegionListers();
return(this.newReg);
}
finally
{
this.working = false;
}
}
private void SweepInTwoDirectionsAndTryToCreateLink(Rot4 potentialOtherRegionDir, IntVec3 c)
{
if (potentialOtherRegionDir.IsValid)
{
HashSet <IntVec3> hashSet = this.linksProcessedAt[potentialOtherRegionDir.AsInt];
if (!hashSet.Contains(c))
{
IntVec3 c2 = c + potentialOtherRegionDir.FacingCell;
if (c2.InBounds(this.map) && this.regionGrid.GetRegionAt_NoRebuild_InvalidAllowed(c2) == this.newReg)
{
return;
}
RegionType expectedRegionType = c2.GetExpectedRegionType(this.map);
if (expectedRegionType != 0)
{
Rot4 rot = potentialOtherRegionDir;
rot.Rotate(RotationDirection.Clockwise);
int num = 0;
int num2 = 0;
hashSet.Add(c);
if (!expectedRegionType.IsOneCellRegion())
{
while (true)
{
IntVec3 intVec = c + rot.FacingCell * (num + 1);
if (intVec.InBounds(this.map) && this.regionGrid.GetRegionAt_NoRebuild_InvalidAllowed(intVec) == this.newReg && (intVec + potentialOtherRegionDir.FacingCell).GetExpectedRegionType(this.map) == expectedRegionType)
{
if (!hashSet.Add(intVec))
{
Log.Error("We've processed the same cell twice.");
}
num++;
continue;
}
break;
}
while (true)
{
IntVec3 intVec2 = c - rot.FacingCell * (num2 + 1);
if (intVec2.InBounds(this.map) && this.regionGrid.GetRegionAt_NoRebuild_InvalidAllowed(intVec2) == this.newReg && (intVec2 + potentialOtherRegionDir.FacingCell).GetExpectedRegionType(this.map) == expectedRegionType)
{
if (!hashSet.Add(intVec2))
{
Log.Error("We've processed the same cell twice.");
}
num2++;
continue;
}
break;
}
}
int length = num + num2 + 1;
SpanDirection dir;
IntVec3 root;
if (potentialOtherRegionDir == Rot4.North)
{
dir = SpanDirection.East;
root = c - rot.FacingCell * num2;
root.z++;
}
else if (potentialOtherRegionDir == Rot4.South)
{
dir = SpanDirection.East;
root = c + rot.FacingCell * num;
}
else if (potentialOtherRegionDir == Rot4.East)
{
dir = SpanDirection.North;
root = c + rot.FacingCell * num;
root.x++;
}
else
{
dir = SpanDirection.North;
root = c - rot.FacingCell * num2;
}
EdgeSpan span = new EdgeSpan(root, dir, length);
RegionLink regionLink = this.map.regionLinkDatabase.LinkFrom(span);
regionLink.Register(this.newReg);
this.newReg.links.Add(regionLink);
}
}
}
}
private bool <FloodFillAndAddCells> m__0(IntVec3 x)
{
return(this.newReg.extentsLimit.Contains(x) && x.GetExpectedRegionType(this.map) == this.newReg.type);
}
