protected virtual void GatherTilesToInject()
{
Random injectionRandomStream = new Random(ChosenSeed);
// Gather from DungeonFlow
foreach (var rule in DungeonFlow.TileInjectionRules)
{
// Ignore invalid rules
if (rule.TileSet == null || (!rule.CanAppearOnMainPath && !rule.CanAppearOnBranchPath))
{
continue;
}
bool isOnMainPath = (!rule.CanAppearOnBranchPath) ? true : (!rule.CanAppearOnMainPath) ? false : injectionRandomStream.NextDouble() > 0.5;
InjectedTile injectedTile = new InjectedTile(rule.TileSet,
isOnMainPath,
rule.NormalizedPathDepth.GetRandom(injectionRandomStream),
rule.NormalizedBranchDepth.GetRandom(injectionRandomStream),
rule.IsRequired);
tilesPendingInjection.Add(injectedTile);
}
// Gather from external delegates
if (TileInjectionMethods != null)
{
TileInjectionMethods(injectionRandomStream, ref tilesPendingInjection);
}
}
protected virtual Tile AddTile(Tile attachTo, IEnumerable <TileSet> useableTileSets, float normalizedDepth, DungeonArchetype archetype, TilePlacementResult result = TilePlacementResult.None)
{
bool isOnMainPath = (Status == GenerationStatus.MainPath);
bool isFirstTile = attachTo == null;
// Check list of tiles to inject
InjectedTile chosenInjectedTile = null;
int injectedTileIndexToRemove = -1;
bool isPlacingSpecificRoom = isOnMainPath && (archetype == null);
if (tilesPendingInjection != null && !isPlacingSpecificRoom)
{
float pathDepth = (isOnMainPath) ? normalizedDepth : attachTo.Placement.PathDepth / (float)(targetLength - 1);
float branchDepth = (isOnMainPath) ? 0 : normalizedDepth;
for (int i = 0; i < tilesPendingInjection.Count; i++)
{
var injectedTile = tilesPendingInjection[i];
if (injectedTile.ShouldInjectTileAtPoint(isOnMainPath, pathDepth, branchDepth))
{
chosenInjectedTile = injectedTile;
injectedTileIndexToRemove = i;
break;
}
}
}
// Select appropriate tile weights
IEnumerable <GameObjectChance> chanceEntries;
if (chosenInjectedTile != null)
{
chanceEntries = new List <GameObjectChance>(chosenInjectedTile.TileSet.TileWeights.Weights);
}
else
{
chanceEntries = useableTileSets.SelectMany(x => x.TileWeights.Weights);
}
// Apply constraint overrides
bool allowRepeatTile = (isFirstTile) ? true : attachTo.AllowImmediateRepeats;
if (OverrideAllowImmediateRepeats)
{
allowRepeatTile = AllowImmediateRepeats;
}
bool allowRotation = (isFirstTile) ? false : attachTo.AllowRotation;
if (OverrideAllowTileRotation)
{
allowRotation = AllowTileRotation;
}
DoorwayPairFinder doorwayPairFinder = new DoorwayPairFinder()
{
RandomStream = RandomStream,
Archetype = archetype,
GetTileTemplateDelegate = GetTileTemplate,
IsOnMainPath = isOnMainPath,
NormalizedDepth = normalizedDepth,
PreviousTile = attachTo,
PreviousPrefab = (attachTo == null) ? null : placedTilePrefabs[attachTo],
UpVector = UpVector,
AllowRotation = allowRotation,
TileWeights = new List <GameObjectChance>(chanceEntries),
IsTileAllowedPredicate = (Tile previousTile, GameObject previousPrefab, GameObject prefab, ref float weight) =>
{
bool isRepeat = (prefab == previousPrefab);
return(!isRepeat || allowRepeatTile);
},
};
int?maxPairingAttempts = (UseMaximumPairingAttempts) ? (int?)MaxPairingAttempts : null;
Queue <DoorwayPair> pairsToTest = doorwayPairFinder.GetDoorwayPairs(maxPairingAttempts);
TilePlacementResult lastTileResult = TilePlacementResult.NoValidTile;
Tile createdTile = null;
while (pairsToTest.Count > 0)
{
var pair = pairsToTest.Dequeue();
lastTileResult = TryPlaceTile(pair, archetype, out createdTile);
if (lastTileResult == TilePlacementResult.None)
{
break;
}
else
{
AddTilePlacementResult(lastTileResult);
}
}
// Successfully placed the tile
if (lastTileResult == TilePlacementResult.None)
{
// We've successfully injected the tile, so we can remove it from the pending list now
if (chosenInjectedTile != null)
{
injectedTiles[createdTile] = chosenInjectedTile;
tilesPendingInjection.RemoveAt(injectedTileIndexToRemove);
if (isOnMainPath)
{
targetLength++;
}
}
return(createdTile);
}
else
{
return(null);
}
}