/// <summary>Used to create cache for the overlapping model</summary>
public static bool testCompatibility(int from, Dir4 dir, int to, PatternStorage patterns, Map source)
{
int N = patterns.N; // patterns have size of NxN
var fromPattern = patterns[from];
var toPattern = patterns[to];
// TODO: use row/col vector for performance
for (int row = 0; row < N - 1; row++)
{
for (int col = 0; col < N; col++)
{
// Now, consider a concrete situation: `from` is down and `to` is up (direction = North)
// get local positions in each pattern
var downLocal = new Vec2i(col, row);
var upLocal = new Vec2i(col, row + 1);
// apply the direction
downLocal = dir.applyAsRotation(downLocal, N);
upLocal = dir.applyAsRotation(upLocal, N);
// convert them (local positions) into global positions (position in the source)
var downGlobal = fromPattern.localPosToSourcePos(downLocal, N);
var upGlobal = toPattern.localPosToSourcePos(upLocal, N);
// test the equaility
if (source[downGlobal.x, downGlobal.y] != source[upGlobal.x, upGlobal.y])
{
return(false);
}
}
}
// if all of the tiles are same, that's a compatible combination
return(true);
}
/// <summary>Used to create cache for the overlapping model</summary>
public static bool testCompatibility(int from, Dir4 dir, int to, PatternStorage patterns, Map source)
{
int N = patterns.N; // patterns have size of NxN
var fromPattern = patterns[from];
var toPattern = patterns[to];
// TODO: use row/col vector for performance
int row = 0;
bool anyExitDown = false;
bool anyExitUp = false;
for (int col = 0; col < N; col++)
{
// Now, consider a concrete situation: `from` is down and `to` is up (direction = North)
// get local positions in each pattern
var downLocal = new Vec2i(col, row);
var upLocal = new Vec2i(col, row + 1);
// apply the direction
downLocal = dir.applyAsRotation(downLocal, N);
upLocal = dir.applyAsRotation(upLocal, N);
// convert them (local positions) into global positions (position in the source)
var downGlobal = fromPattern.localPosToSourcePos(downLocal, N);
var upGlobal = toPattern.localPosToSourcePos(upLocal, N);
// check compatibilities
bool down = source[downGlobal.x, downGlobal.y] == Tile.Floor;
bool up = source[downGlobal.x, downGlobal.y] == Tile.Floor;
if (down && up)
{
return(true);
}
anyExitDown &= down;
anyExitUp &= up;
}
// if one of them has no exits, we enable the pattern
return(!anyExitDown && !anyExitUp);
}
