/// <summary>
/// Creates an instance of the generator.
/// </summary>
/// <param name="levelDescription">Level description of the level that should be generated.</param>
/// <param name="configuration">Configuration of the generator. Can be omitted for reasonable defaults.</param>
public GraphBasedGeneratorGrid2D(LevelDescriptionGrid2D <TRoom> levelDescription, GraphBasedGeneratorConfiguration <TRoom> configuration = null)
{
this.levelDescription = levelDescription;
this.levelDescriptionMapped = new LevelDescriptionMapping <TRoom>(levelDescription);
this.configuration = configuration ?? new GraphBasedGeneratorConfiguration <TRoom>();
SetupGenerator();
}
public override IEnumerator Process()
{
var levelDescription = Payload.LevelDescription;
if (config.Timeout <= 0)
{
throw new ArgumentException($"{nameof(config.Timeout)} must be greater than 0", nameof(config.Timeout));
}
var rootGameObject = config.RootGameObject;
// If the root game objects was not set in the config, we do the following:
// 1. Check if there already exists a game objects with a name reserved for the generated level
// 2. Otherwise, we create a new empty game object
if (rootGameObject == null)
{
rootGameObject = GameObject.Find("Generated Level");
if (rootGameObject == null)
{
rootGameObject = new GameObject("Generated Level");
}
}
// We delete all the children from the root game object - we do not want to combine levels from different runs of the algorithm
foreach (var child in rootGameObject.transform.Cast <Transform>().ToList())
{
child.transform.parent = null;
PostProcessUtils.Destroy(child.gameObject);
}
// The LevelDescription class must be converted to MapDescription
var levelDescriptionGrid2D = levelDescription.GetLevelDescription();
levelDescriptionGrid2D.MinimumRoomDistance = 1;
levelDescriptionGrid2D.RoomTemplateRepeatModeOverride = GeneratorUtils.GetRepeatMode(config.RepeatModeOverride);
var configuration = new GraphBasedGeneratorConfiguration <RoomBase>()
{
EarlyStopIfTimeExceeded = TimeSpan.FromMilliseconds(config.Timeout),
};
// We create the instance of the dungeon generator and inject the correct Random instance
var generator = new GraphBasedGeneratorGrid2D <RoomBase>(levelDescriptionGrid2D, configuration);
generator.InjectRandomGenerator(Payload.Random);
// Run the generator in a different class so that the computation is not blocking
LayoutGrid2D <RoomBase> layout = null;
var task = Task.Run(() => layout = generator.GenerateLayout());
while (!task.IsCompleted)
{
yield return(null);
}
// Throw an exception when a timeout is reached
// TODO: this should be our own exception and not a generic exception
if (layout == null)
{
if (task.Exception != null)
{
if (task.Exception.InnerException != null)
{
throw task.Exception.InnerException;
}
throw task.Exception;
}
else
{
throw new TimeoutException();
}
}
// Transform the level to its Unity representation
var generatedLevel = GeneratorUtils.TransformLayout(layout, levelDescription, rootGameObject);
var stats = new GeneratorStats()
{
Iterations = generator.IterationsCount,
TimeTotal = generator.TimeTotal,
};
Debug.Log($"Layout generated in {stats.TimeTotal / 1000f:F} seconds");
Debug.Log($"{stats.Iterations} iterations needed, {stats.Iterations / (stats.TimeTotal / 1000d):0} iterations per second");
((IGraphBasedGeneratorPayload)Payload).GeneratedLevel = generatedLevel;
Payload.GeneratorStats = stats;
yield return(null);
}
public GraphBasedGeneratorFactory(GraphBasedGeneratorConfiguration <TNode> configuration, bool benchmarkInitialization = false, string name = null)
{
this.configuration = configuration;
this.benchmarkInitialization = benchmarkInitialization;
Name = $"{name ?? "New generator"}" + (benchmarkInitialization ? " with init" : "");
}
