TileNeighbors GetSurroundingTiles(Coordinates c, bool[,] boolMap)
{
// Remember it's bottom left origin!
TileNeighbors n = new TileNeighbors();
n.C = TileExists(c, boolMap);
n.N = TileExists(new Coordinates(c.x, c.y + 1), boolMap);
n.NE = TileExists(new Coordinates(c.x + 1, c.y + 1), boolMap);
n.E = TileExists(new Coordinates(c.x + 1, c.y), boolMap);
n.SE = TileExists(new Coordinates(c.x + 1, c.y - 1), boolMap);
n.S = TileExists(new Coordinates(c.x, c.y - 1), boolMap);
n.SW = TileExists(new Coordinates(c.x - 1, c.y - 1), boolMap);
n.W = TileExists(new Coordinates(c.x - 1, c.y), boolMap);
n.NW = TileExists(new Coordinates(c.x - 1, c.y + 1), boolMap);
return(n);
}
public void MarchSquares()
{
// Build our bool map first
bool[,] walls = new bool[map.width, map.height];
for (int x = 0; x < map.width; x++)
{
for (int y = 0; y < map.height; y++)
{
if (BaseWallExists(new Coordinates(x, y)))
{
walls [x, y] = true;
}
else
{
walls [x, y] = false;
}
}
}
for (int x = 0; x < map.width; x++)
{
for (int y = 0; y < map.height; y++)
{
// Get the tile neighbors and assign a tile based on that. Levels grow outwards from wall tiles already placed
TileNeighbors ns = GetSurroundingTiles(new Coordinates(x, y), walls);
if (!ns.C)
{
// Empty tile
if (ns.S)
{
if (ns.E)
{
SetTileIfNotSet(x, y, wallLayer, 3);
}
else if (ns.W)
{
SetTileIfNotSet(x, y, wallLayer, 4);
}
else
{
SetTileIfNotSet(x, y, wallLayer, 1);
}
}
else if (ns.E)
{
if (ns.N)
{
SetTileIfNotSet(x, y, wallLayer, 35);
}
else
{
SetTileIfNotSet(x, y, wallLayer, 32);
}
}
else if (ns.W)
{
if (ns.N)
{
SetTileIfNotSet(x, y, wallLayer, 36);
}
else
{
SetTileIfNotSet(x, y, wallLayer, 34);
}
}
else if (ns.N)
{
SetTileIfNotSet(x, y, wallLayer, 65);
}
else if (ns.NE)
{
SetTileIfNotSet(x, y, wallLayer, 64);
}
else if (ns.SE)
{
SetTileIfNotSet(x, y, wallLayer, 0);
}
else if (ns.NW)
{
SetTileIfNotSet(x, y, wallLayer, 66);
}
else if (ns.SW)
{
SetTileIfNotSet(x, y, wallLayer, 2);
}
}
}
}
}