internal Quadstate GetSelectedQuadstate(int x, int y, int z, TilePropagatorTileSet tiles)
{
GetBannedSelected(x, y, z, tiles, out var isBanned, out var isSelected);
if (isSelected)
{
if (isBanned)
{
return(Quadstate.Contradiction);
}
else
{
return(Quadstate.Yes);
}
}
else
{
if (isBanned)
{
return(Quadstate.No);
}
else
{
return(Quadstate.Maybe);
}
}
}
/// <summary>
/// isBanned is set to true if all the tiles are not valid in the location.
/// isSelected is set to true if no other the tiles are valid in the location.
/// </summary>
public void GetBannedSelected(int x, int y, int z, TilePropagatorTileSet tiles, out bool isBanned, out bool isSelected)
{
TileCoordToPatternCoord(x, y, z, out var px, out var py, out var pz, out var o);
var patterns = tileModelMapping.GetPatterns(tiles, o);
GetBannedSelectedInternal(px, py, pz, patterns, out isBanned, out isSelected);
}
/// <summary>
/// Returns a tracker that runs a callback when the banned/selected status of tile changes with respect to a tileset.
/// </summary>
public SelectedChangeTracker CreateSelectedChangeTracker(TilePropagatorTileSet tileSet, IQuadstateChanged onChange)
{
var tracker = new SelectedChangeTracker(this, wavePropagator, tileModelMapping, tileSet, onChange);
((ITracker)tracker).Reset();
wavePropagator.AddTracker(tracker);
return(tracker);
}
/// <summary>
/// Returns a tracker that tracks the banned/selected status of each tile with respect to a tileset.
/// </summary>
public SelectedTracker CreateSelectedTracker(TilePropagatorTileSet tileSet)
{
var tracker = new SelectedTracker(this, wavePropagator, tileModelMapping, tileSet);
((ITracker)tracker).Reset();
wavePropagator.AddTracker(tracker);
return(tracker);
}
internal SelectedChangeTracker CreateSelectedChangeTracker(TilePropagatorTileSet tileSet, ITristateChanged onChange)
{
var tracker = new SelectedChangeTracker(this, wavePropagator, tileModelMapping, tileSet, onChange);
tracker.Reset();
wavePropagator.AddTracker(tracker);
return(tracker);
}
/// <summary>
/// Marks the given tiles as not being a valid choice at a given location.
/// Then it propagates that information to other nearby tiles.
/// </summary>
/// <returns>The current <see cref="Status"/></returns>
public Resolution Ban(int x, int y, int z, TilePropagatorTileSet tiles)
{
TileCoordToPatternCoord(x, y, z, out var px, out var py, out var pz, out var o);
var patterns = tileModelMapping.GetPatterns(tiles, o);
foreach (var p in patterns)
{
var status = wavePropagator.Ban(px, py, pz, p);
if (status != Resolution.Undecided)
{
return(status);
}
}
return(Resolution.Undecided);
}
/// <summary>
/// Marks the given tiles as the only valid choice at a given location.
/// This is equivalent to banning all other tiles.
/// Then it propagates that information to other nearby tiles.
/// </summary>
/// <returns>The current <see cref="Status"/></returns>
public Resolution Select(int x, int y, int z, TilePropagatorTileSet tiles)
{
TileCoordToPatternCoord(x, y, z, out var px, out var py, out var pz, out var o);
var patterns = tileModelMapping.GetPatterns(tiles, o);
for (var p = 0; p < wavePropagator.PatternCount; p++)
{
if (patterns.Contains(p))
{
continue;
}
var status = wavePropagator.Ban(px, py, pz, p);
if (status != Resolution.Undecided)
{
return(status);
}
}
return(Resolution.Undecided);
}
internal Tristate GetSelectedTristate(int x, int y, int z, TilePropagatorTileSet tiles)
{
GetBannedSelected(x, y, z, tiles, out var isBanned, out var isSelected);
return(isSelected ? Tristate.Yes : isBanned?Tristate.No : Tristate.Maybe);
}
