def mutate(self, chromo):
"""
Function takes chromosome inputs and mutates the chromosome based on mutation rate
:param chromo: input player chromosome
:return: mutated player chromosome
"""
for z in xrange(len(chromo)):
if random_number() < MUTATION_RATE:
chromo[z] = random_number()
return chromo
def crossover(self, offspring1, offspring2):
"""
perform a crossover on the offspring and return the changed offsprings with new chromosomes
:param offspring1: first NN player
:param offspring2: second NN player
:return: new offsprings generated
"""
# if random_number() < CROSSOVER_RATE:
# crossover_val = int(random_number() * len(offspring1))
# t1 = offspring1[:crossover_val] + offspring2[crossover_val:]
# t2 = offspring2[:crossover_val] + offspring1[crossover_val:]
# Changing the way we do crossovers
for c_ix in range(len(offspring1)):
if random_number() < CROSSOVER_RATE:
offspring1[c_ix], offspring2[c_ix] = offspring2[c_ix], offspring1[c_ix]
# return t1, t2
return offspring1, offspring2
