private bool CheckTile(TerrainType set, VirtualMap <char> mapData, int x, int y, Rectangle forceFill, Behaviour behaviour)
{
if (forceFill.Contains(x, y))
{
return(true);
}
if (mapData == null)
{
return(behaviour.EdgesExtend);
}
if (x >= 0 && y >= 0 && x < mapData.Columns && y < mapData.Rows)
{
char c = mapData[x, y];
return(!IsEmpty(c) && !set.Ignore(c));
}
if (!behaviour.EdgesExtend)
{
return(false);
}
char c2 = mapData[Util.Clamp(x, 0, mapData.Columns - 1), Util.Clamp(y, 0, mapData.Rows - 1)];
return(!IsEmpty(c2) && !set.Ignore(c2));
}