private static int[] GetAtlasQuarterTilesForNeighborMask(int neighbors)
{
//Each tile in the atlas is composed of 4 quarter tiles,
//call them by quadrant:
// A B
// C D
//The VXQuarterTileLookup matches the requested quadrant and corner score
//to the quarter tile index inside the VX AutoTile texture, numbering like this
// 0 1 2 3
// 4 5 6 7
// 8 9 10 11
// 12 13 14 15
// 16 17 18 19
// 20 21 22 23
//Where 0,1,4,5 are not used, 2,3,6,7 are the "270 degree" tiles
//and 8-23 are the main pattern
var c = AutoTile.GetCornerScores(neighbors);
return(new int[]
{
VXQuarterTileLookup[0xA0 + c[0]],
VXQuarterTileLookup[0xB0 + c[1]],
VXQuarterTileLookup[0xC0 + c[2]],
VXQuarterTileLookup[0xD0 + c[3]]
});
}
public static int[] GetTile(int neighbors)
{
var key = AutoTile.FilterNeighbors((byte)neighbors);
var vxQuarterTiles = GetAtlasQuarterTilesForNeighborMask(key);
for (int i = 0; i < 4; i++)
{
int vxQIndex = vxQuarterTiles[i];
}
return(vxQuarterTiles);
}
