s444409/DSZI_Survival
s444409/DSZI_Survival
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Added mutation

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This commit is contained in:
Marcin Kostrzewski 2020-05-16 14:21:09 +02:00
parent e8e36a4420
commit ac6a7df4fe
1 changed files with 8 additions and 2 deletions
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10
src/AI/GA.py
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@ -29,7 +29,6 @@ def geneticAlgorithm(map, iter, solutions, mutationAmount=0.2):
parents = selectMatingPool(population, fitness, int(solutions / 2)) parents = selectMatingPool(population, fitness, int(solutions / 2))
print("Best fitness: {}".format(max(fitness))) print("Best fitness: {}".format(max(fitness)))
offspring = mating(parents, solutions, mutationAmount) offspring = mating(parents, solutions, mutationAmount)
# TODO: Parents selection, mating, offspring
def selectMatingPool(population, fitness, count): def selectMatingPool(population, fitness, count):
@ -66,7 +65,7 @@ def mating(parents, offspringCount, mutationAmount):
parent2 = (i + 1) % len(parents) parent2 = (i + 1) % len(parents)
offspring.append(crossover(parents[parent1], parents[parent2])) offspring.append(crossover(parents[parent1], parents[parent2]))
# TODO: Add mutation offspring = mutation(offspring, mutationAmount)
return offspring return offspring
@ -85,6 +84,13 @@ def crossover(genes1, genes2):
return result return result
def mutation(offspring, mutationAmount):
for player in offspring:
randomGeneIdx = random.randint(len(player))
player[randomGeneIdx] = player[randomGeneIdx] * random.random() * mutationAmount
return offspring
def doSimulation(weights, map): def doSimulation(weights, map):
""" """
Runs the simulation. Returns fitness. Runs the simulation. Returns fitness.