public GAStrategy(FMap fMap, string id, GAOpts opt) : base(fMap, id)
{
rng = new Random(Guid.NewGuid().GetHashCode());
popSize = opt.popSize; // population size
mutRate = opt.mutRate; // mutation rate
fitnessMulti = opt.fitMulti; //fitness multiplier
ValueDiversity = opt.diversity; //whether we value candidate diversity or not
Elite = opt.elite; //Mix in the genes of the best path found when creating next generations
deepCount = 1;
deepeningInc = opt.deepeningInc;
parents = new Individual[Math.Max((int)(popSize * 0.1), 2)]; //parents as a fifth of the population
dnaPool = new List <MasterGene>(); //action counter for crossovers
BestDNA = new List <MoveDir>();
//initialise generation
generation = new Individual[popSize];
for (int i = 0; i < popSize; i++)
{
generation[i] = new Individual(fMap.Start);
}
started = false;
}
public static SearchStrategy Create(string filename, string method, string popSize, string mutRate, string fitMulti, string diversity, string elite, string deepeningInc)
{
method = method.ToUpper();
GAOpts opts = new GAOpts(popSize, mutRate, fitMulti, diversity, elite, deepeningInc);
switch (method)
{
case "DFS":
return(new DFSStrategy(MapFactory.CreateFMap(filename), "DFS"));
case "GBFS":
return(new GBFSStrategy(MapFactory.CreateFMap(filename), "GBFS"));
case "AS":
return(new ASStrategy(MapFactory.CreateFMap(filename), MapFactory.CreateFMap(filename), "A*"));
case "ASFS":
return(new ASFSStrategy(MapFactory.CreateFMap(filename), MapFactory.CreateFMap(filename), "A* Fast Stack"));
case "CUS1":
case "GA":
return(new GAStrategy(MapFactory.CreateFMap(filename), "Genetic Algorithm", opts));
case "CUS2":
case "JPS":
return(new JPSStrategy(MapFactory.CreateFMap(filename), MapFactory.CreateFMap(filename), "JPS"));
case "BFS":
default:
return(new BFSStrategy(MapFactory.CreateFMap(filename), "BFS"));
}
}
