/// <summary>
/// Runs standard evolution and/or MOEA seeded with maps found by the constrained novelty search.
/// </summary>
/// <param name="maps"> The maps to run evolution on. </param>
/// <param name="r"> The random number generator. </param>
/// <param name="mapSearchOptions"> The map search options. </param>
/// <param name="noveltySearchOptions"> The novelty search options. </param>
/// <param name="mapFitnessOptions"> The map fitness options. </param>
/// <param name="numberOfNoveltyGenerations"> The number of generations to run for the novelty search. </param>
/// <param name="numberOfEvolutionGenerations"> The number of generations to run for the standard evolution. </param>
/// <param name="numberOfMOEAGenerations"> The number of generations to run for the MOEA. </param>
/// <param name="evolutionPopulationSize"> The population size of the standard evolution. </param>
/// <param name="numberOfParents"> The number of parents for the standard evolution. </param>
/// <param name="numberOfChildren"> The number of children spawned per generation in the standard evolution. </param>
/// <param name="evolutionMutationChance"> The chance of mutation happening during evolution. </param>
/// <param name="moeaPopulationSize"> The population size of the MOEA. </param>
/// <param name="moeaMutationChance"> The chance of mutation happening in the MOEA. </param>
/// <param name="selectionStrategy"> The selection strategy used in the standard evolution. </param>
/// <param name="parentSelectionStrategy"> The parent selection strategy used in the standard evolution. </param>
/// <param name="populationStrategy"> The population strategy used in the standard evolution. </param>
/// <param name="folderName"> The folder to save results to in "Images/Finished Maps". </param>
/// <param name="fileToWriteTo"> The file to write timings and fitness per generation to. </param>
/// <param name="selectHighestFitness"> Determines if the maps for seeding are chosen by highest fitness or highest novelty. </param>
/// <param name="lowestFitnessLevelForPrint"> The fitness required before a map is printed. </param>
/// <param name="runEvo"> Determines if the standard evolution should be run. </param>
/// <param name="runMOEA"> Determines if the MOEA should be run. </param>
public static void RunEvolutionWithNoveltyAsBase(
List <MapPhenotype> maps,
Random r,
MapSearchOptions mapSearchOptions = null,
NoveltySearchOptions noveltySearchOptions = null,
MapFitnessOptions mapFitnessOptions = null,
int numberOfNoveltyGenerations = 10,
int numberOfEvolutionGenerations = 10,
int numberOfMOEAGenerations = 10,
int evolutionPopulationSize = 20,
int numberOfParents = 6,
int numberOfChildren = 16,
double evolutionMutationChance = 0.3,
int moeaPopulationSize = 25,
double moeaMutationChance = 0.3,
Enums.SelectionStrategy selectionStrategy = Enums.SelectionStrategy.ChanceBased,
Enums.SelectionStrategy parentSelectionStrategy = Enums.SelectionStrategy.ChanceBased,
Enums.PopulationStrategy populationStrategy = Enums.PopulationStrategy.Mutation,
string folderName = "MapNoveltyEvolution",
string fileToWriteTo = "NoveltyEvolutionHighestFitnessSearchGenerationTimes.txt",
bool selectHighestFitness = true,
double lowestFitnessLevelForPrint = double.MinValue,
bool runEvo = true,
bool runMOEA = true)
{
var stringToWrite = new StringBuilder();
var mso = mapSearchOptions ?? new MapSearchOptions(null);
var mfo = mapFitnessOptions ?? new MapFitnessOptions();
var nso = noveltySearchOptions ?? new NoveltySearchOptions();
var listOfArchives = new List <List <Solution> >();
// Novelty search
var sw = new Stopwatch();
sw.Start();
var baseMapCounter = 0;
foreach (var map in maps)
{
sw.Restart();
stringToWrite.AppendLine(string.Format("Performing novelty search on base map number {0}.", baseMapCounter));
var heightLevels = map.HeightLevels.Clone() as Enums.HeightLevel[, ];
var items = map.MapItems.Clone() as Enums.Item[, ];
var baseMap = new MapPhenotype(heightLevels, items);
baseMap.CreateCompleteMap(Enums.Half.Top, Enums.MapFunction.Turn).SaveMapToPngFile(string.Format("Base Map {0}", baseMapCounter), folderName, false);
mso = new MapSearchOptions(map, mso);
var searcher = new MapSearcher(r, mso, nso);
searcher.RunGenerations(numberOfNoveltyGenerations, stringToWrite);
listOfArchives.Add(searcher.Archive.Archive);
stringToWrite.AppendLine(string.Format("It took {0} ms to perform novelty search on base map number {1}.", sw.ElapsedMilliseconds, baseMapCounter));
stringToWrite.AppendLine();
baseMapCounter++;
}
baseMapCounter = 0;
sw.Restart();
var solutions = new List <List <EvolvableMap> >();
if (selectHighestFitness)
{
stringToWrite.AppendLine(string.Format("Sorting initial population based by highest fitness."));
foreach (var map in maps)
{
var evolvableMaps = new List <EvolvableMap>();
var archive = listOfArchives[baseMapCounter];
foreach (var solution in archive)
{
var ms = (MapSolution)solution;
mso = new MapSearchOptions(map, mso);
var evolvableMap = new EvolvableMap(mso, evolutionMutationChance, r, mfo, ms.MapPoints);
evolvableMap.CalculateFitness();
evolvableMaps.Add(evolvableMap);
}
solutions.Add(evolvableMaps.OrderByDescending(s => s.Fitness).ToList());
baseMapCounter++;
}
stringToWrite.AppendLine(string.Format("It took {0} ms to find maps with the highest fitness.", sw.ElapsedMilliseconds));
sw.Restart();
}
else
{
stringToWrite.AppendLine(string.Format("Sorting initial population based by highest novelty."));
foreach (var map in maps)
{
var evolvableMaps = new List <EvolvableMap>();
var archive = listOfArchives[baseMapCounter];
var tempArchive = archive.OrderByDescending(s => s.Novelty);
foreach (var solution in tempArchive)
{
var ms = (MapSolution)solution;
mso = new MapSearchOptions(map, mso);
var evolvableMap = new EvolvableMap(mso, evolutionMutationChance, r, mfo, ms.MapPoints);
evolvableMap.CalculateFitness();
evolvableMaps.Add(evolvableMap);
}
solutions.Add(evolvableMaps);
baseMapCounter++;
}
stringToWrite.AppendLine(string.Format("It took {0} ms to find maps with the highest novelty.", sw.ElapsedMilliseconds));
sw.Restart();
}
// Evolution
if (runEvo)
{
sw.Restart();
var bestMaps = new List <EvolvableMap>();
baseMapCounter = 0;
foreach (var map in maps)
{
sw.Restart();
stringToWrite.AppendLine(string.Format("Performing evolution on base map number {0}.", baseMapCounter));
mso = new MapSearchOptions(map, mso);
var evolver = new Evolver <EvolvableMap>(
numberOfEvolutionGenerations,
evolutionPopulationSize,
numberOfParents,
numberOfChildren,
evolutionMutationChance,
r,
new object[] { mso, evolutionMutationChance, r, mfo })
{
PopulationSelectionStrategy = selectionStrategy,
ParentSelectionStrategy = parentSelectionStrategy,
PopulationStrategy = populationStrategy
};
evolver.Initialize(solutions[baseMapCounter].Take(evolutionPopulationSize), stringToWrite);
evolver.Evolve(stringToWrite);
var variationValue = 0;
foreach (var individual in evolver.Population)
{
variationValue++;
if (individual.Fitness >= lowestFitnessLevelForPrint)
{
individual.ConvertedPhenotype.SaveMapToPngFile(string.Format("Evo_Base Map {0}_Map {1}_Fitness {2}", baseMapCounter, variationValue, individual.Fitness), folderName, false);
}
}
stringToWrite.AppendLine(string.Format("It took {0} ms to perform evolution on base map number {1}.", sw.ElapsedMilliseconds, baseMapCounter));
stringToWrite.AppendLine();
bestMaps.Add(evolver.Population.OrderByDescending(evoMap => evoMap.Fitness).ToList()[0]);
MapHelper.SaveGreyscaleNoveltyMap(evolver.Population, string.Format("Evo_Base Map {0} NoveltyMap", baseMapCounter), folderName);
baseMapCounter++;
}
MapHelper.SaveGreyscaleNoveltyMap(bestMaps, string.Format("Evo_Best Maps NoveltyMap"), folderName);
}
// MOEA
if (runMOEA)
{
baseMapCounter = 0;
var bestMaps = new List <EvolvableMap>();
foreach (var map in maps)
{
sw.Restart();
stringToWrite.AppendLine(string.Format("Performing multi objective evolution for base map number {0}", baseMapCounter));
var heightLevels = map.HeightLevels.Clone() as Enums.HeightLevel[, ];
var items = map.MapItems.Clone() as Enums.Item[, ];
var baseMap = new MapPhenotype(heightLevels, items);
baseMap.CreateCompleteMap(Enums.Half.Top, Enums.MapFunction.Mirror);
baseMap.SaveMapToPngFile(string.Format("Base Map {0}", baseMapCounter), folderName, false);
mso = new MapSearchOptions(map, mso);
var evolver = new MultiObjectiveEvolver(
numberOfMOEAGenerations,
moeaPopulationSize,
moeaMutationChance,
r,
mso,
mfo);
evolver.RunEvolution(stringToWrite, solutions[baseMapCounter].Take(moeaPopulationSize));
var variationValue = 0;
foreach (var individual in evolver.Population)
{
variationValue++;
if (individual.Fitness >= lowestFitnessLevelForPrint)
{
individual.ConvertedPhenotype.SaveMapToPngFile(string.Format("MOEA_Base Map {0}_Map {1}_Fitness {2}", baseMapCounter, variationValue, individual.Fitness), folderName, false);
}
}
stringToWrite.AppendLine(string.Format("It took {0} ms to perform multi objective evolution on base map number {1}", sw.ElapsedMilliseconds, baseMapCounter));
stringToWrite.AppendLine();
bestMaps.Add(evolver.Population.OrderByDescending(evoMap => evoMap.Fitness).ToList()[0]);
MapHelper.SaveGreyscaleNoveltyMap(evolver.Population, string.Format("MOEA_Base Map {0} NoveltyMap", baseMapCounter), folderName);
baseMapCounter++;
}
MapHelper.SaveGreyscaleNoveltyMap(bestMaps, string.Format("MOEA_Best Maps NoveltyMap"), folderName);
}
WriteToTextFile(stringToWrite.ToString(), fileToWriteTo, folderName);
}
/// <summary>
/// Runs evolution with the given settings.
/// </summary>
/// <param name="maps"> The maps to run evolution on. </param>
/// <param name="r"> The random number generator. </param>
/// <param name="mapSearchOptions"> The map search options. </param>
/// <param name="mapFitnessOptions"> The map fitness options. </param>
/// <param name="numberOfGenerations"> The number of generations to run. </param>
/// <param name="populationSize"> The population size of the evolution. </param>
/// <param name="numberOfParents"> The number of parents used in the evolution. </param>
/// <param name="numberOfChildren"> The number of children spawned per generation. </param>
/// <param name="mutationChance"> The chance of mutation happening. </param>
/// <param name="selectionStrategy"> The selection strategy. </param>
/// <param name="parentSelectionStrategy"> The parent selection strategy. </param>
/// <param name="populationStrategy"> The population strategy. </param>
/// <param name="folderName"> The folder to save results to in "Images/Finished Maps". </param>
/// <param name="fileToWriteTo"> The file to write timings and fitness per generation to. </param>
/// <param name="lowestFitnessLevelForPrint"> The fitness required before a map is printed. </param>
public static void RunEvolution(
List <MapPhenotype> maps,
Random r,
MapSearchOptions mapSearchOptions = null,
MapFitnessOptions mapFitnessOptions = null,
int numberOfGenerations = 10,
int populationSize = 20,
int numberOfParents = 6,
int numberOfChildren = 16,
double mutationChance = 0.3,
Enums.SelectionStrategy selectionStrategy = Enums.SelectionStrategy.ChanceBased,
Enums.SelectionStrategy parentSelectionStrategy = Enums.SelectionStrategy.ChanceBased,
Enums.PopulationStrategy populationStrategy = Enums.PopulationStrategy.Mutation,
string folderName = "MapEvolution",
string fileToWriteTo = "EvolutionGenerationTimes.txt",
double lowestFitnessLevelForPrint = double.MinValue)
{
var stringToWrite = new StringBuilder();
var mso = mapSearchOptions ?? new MapSearchOptions(null);
var mfo = mapFitnessOptions ?? new MapFitnessOptions();
var bestMaps = new List <EvolvableMap>();
var sw = new Stopwatch();
sw.Start();
var baseMapCounter = 0;
foreach (var map in maps)
{
sw.Restart();
stringToWrite.AppendLine(string.Format("Performing evolution on base map number {0}.", baseMapCounter));
var heightLevels = map.HeightLevels.Clone() as Enums.HeightLevel[, ];
var items = map.MapItems.Clone() as Enums.Item[, ];
var baseMap = new MapPhenotype(heightLevels, items);
baseMap.CreateCompleteMap(Enums.Half.Top, Enums.MapFunction.Turn).SaveMapToPngFile(string.Format("Base Map {0}", baseMapCounter), folderName, false);
mso = new MapSearchOptions(map, mso);
var evolver = new Evolver <EvolvableMap>(
numberOfGenerations,
populationSize,
numberOfParents,
numberOfChildren,
mutationChance,
r,
new object[] { mso, mutationChance, r, mfo })
{
PopulationSelectionStrategy = selectionStrategy,
ParentSelectionStrategy = parentSelectionStrategy,
PopulationStrategy = populationStrategy
};
evolver.Initialize(stringToWrite);
var bestMap = evolver.Evolve(stringToWrite);
var variationValue = 0;
foreach (var individual in evolver.Population)
{
variationValue++;
if (individual.Fitness >= lowestFitnessLevelForPrint)
{
individual.ConvertedPhenotype.SaveMapToPngFile(string.Format("Base Map {0}_Map {1}_Fitness {2}", baseMapCounter, variationValue, individual.Fitness), folderName, false);
}
}
stringToWrite.AppendLine(string.Format("It took {0} ms to perform evolution on base map number {1}.", sw.ElapsedMilliseconds, baseMapCounter));
stringToWrite.AppendLine();
bestMaps.Add(evolver.Population.OrderByDescending(evoMap => evoMap.Fitness).ToList()[0]);
MapHelper.SaveGreyscaleNoveltyMap(evolver.Population, string.Format("Base Map {0} NoveltyMap", baseMapCounter), folderName);
Console.WriteLine("The map fitness values of base map {0} were: {1}", baseMapCounter, ((EvolvableMap)bestMap).MapFitnessValues);
baseMapCounter++;
}
MapHelper.SaveGreyscaleNoveltyMap(bestMaps, string.Format(" Best Maps NoveltyMap"), folderName);
WriteToTextFile(stringToWrite.ToString(), fileToWriteTo, folderName);
}