public BorderRule(int[,] regionMap, PointInt point, int direction)
{
touchingPoint1 = point;
regionId1 = regionMap.getValue(point);
touchingPoint2 = point.Neighbor(direction);
regionId2 = regionMap.getValue(touchingPoint2);
}
private void calculateBounds(Edge edge, int direction, int[,] biomeMap)
{
Direction dir = new Direction(direction);
var point = edge.touchPoint;
MyMath.Point startFace = getFace(point, dir);
int previousNeighbourBiome = biomeMap.getBorderValue(point, dir);
dir.Increment();
if (holes.Any(x => x.Border.Any(y => y.Equal(startFace))))
{
return;
}
Hole border = new Hole(edge.otherTouchPoint);
PointInt currentPoint = point;
while (true)
{
int newNeighbourBiome = biomeMap.getBorderValue(currentPoint, dir);
if (!biomeMap.sameAsNeighbor(currentPoint, dir))
{
if (!dir.Diagonal())
{
if (previousNeighbourBiome != newNeighbourBiome)
{
border.Add(getCornerVertex(currentPoint, dir));
previousNeighbourBiome = newNeighbourBiome;
}
MyMath.Point face = getFace(currentPoint, dir);
if (face.Equal(startFace))
{
break;
}
else
{
border.Add(face);
}
}
dir.Increment();
}
else
{
currentPoint = currentPoint.Neighbor(dir);
if (dir.Diagonal())
{
dir.Decrement();
}
dir.Decrement();
if (dir.Diagonal())
{
dir.Decrement();
}
}
}
if (border.Border.Count == 0)
{
throw new Exception();
}
border.Add(startFace);
holes.Add(border);
}
public static T getBorderValue <T>(this T[,] map, PointInt p, int direction)
{
var neighbor = p.Neighbor(direction);
return(map.getValue(neighbor));
}