/**
* Generates a hexadecimal key corresponding its surroundings.
* This should yield back the appropriate key that can be used for the tileDictionary,
* which can then correspond with placing the appropriate graphic.
*/
public int makeKey(Tile[,] map, Coord target) {
int key = 0;
// NORTH
if( mvf.isSolid (map, target.nextCoord (Direction.North)) ) {
key += 0x80;
// W AND NW
if ( mvf.isSolid (map, target.nextCoord (Direction.West)) && mvf.isSolid (map, target.crossCoord (Direction.North, Direction.West)) )
key += 0x40;
// E and NE
if( mvf.isSolid (map, target.nextCoord (Direction.East)) && mvf.isSolid (map, target.crossCoord (Direction.North, Direction.East)) )
key += 0x01;
}
// SOUTH
if( mvf.isSolid (map, target.nextCoord (Direction.South)) ) {
key += 0x08;
// W AND SW
if ( mvf.isSolid (map, target.nextCoord (Direction.West)) && mvf.isSolid (map, target.crossCoord (Direction.South, Direction.West)) )
key += 0x10;
// E and SE
if( mvf.isSolid (map, target.nextCoord (Direction.East)) && mvf.isSolid (map, target.crossCoord (Direction.South, Direction.East)) )
key += 0x04;
}
// WEST
if( mvf.isSolid (map, target.nextCoord (Direction.West)) ) {
key += 0x20;
}
// EAST
if( mvf.isSolid (map, target.nextCoord (Direction.East)) ) {
key += 0x02;
}
//Debug.Log ("Given coord (" + target.x.ToString () + "," + target.y.ToString() + "), key is " + key.ToString ("X2"));
return key;
}
