def __init__(self, lsystem = ParametricLSystem()):
self.lsystem = lsystem
# Saved fitness, so that it needs not to be recomputed if it exists already
self.fitness = 0 # TODO: Should be None at the beginning
# Additional parameters used by the genetic algorithm
self.turtleParameters = GeneticTurtleParameters()
class GeneticInstance():
"""
Holds a lsystem as well as additional parameters.
"""
def __init__(self, lsystem = ParametricLSystem()):
self.lsystem = lsystem
# Saved fitness, so that it needs not to be recomputed if it exists already
self.fitness = 0 # TODO: Should be None at the beginning
# Additional parameters used by the genetic algorithm
self.turtleParameters = GeneticTurtleParameters()
def copyParametersFrom(self,other_instance):
self.turtleParameters.copyFrom(other_instance.turtleParameters)
def randomizeAdditionalParameters(self,rnd):
self.turtleParameters.randomize(rnd)
def mutateAdditionalParameters(self,rnd):
self.turtleParameters.mutateAdditionalParameters(rnd)
def __str__(self):
s = "" #"Instance:"
s += "F: " + str(self.fitness)
s += ""+ str(self.lsystem)
s += "\n " + "[" + str(self.turtleParameters) + "]"
return s
def toShortString(self):
return "F: " + str(self.fitness) + "\t" + str(self.toGenomeRepresentation())
##########
# Genome
##########
def toGenomeRepresentation(self):
# "||||" separates these big elements
full_genome = self.lsystem.toGenomeRepresentation()
full_genome += "||||" + self.turtleParameters.toGenomeRepresentation()
return full_genome
def fromGenomeRepresentation(self,genome):
#print(genome)
tokens = genome.split("||||")
#print("TOKENS:::")
#for t in (tokens):
# print(t)
self.lsystem.fromGenomeRepresentation(tokens[0])
self.turtleParameters.fromGenomeRepresentation(tokens[1])
@staticmethod
def genomeToFilename(genome):
#return base64.urlsafe_b64encode(genome)
valid_chars = "-_ %s%s" % (string.ascii_letters, string.digits)
filename = ''.join(c for c in genome if c in valid_chars)
filename = filename.replace(' ','_') # I don't like spaces in filenames.
filename = 'inst_' + filename
filename = filename[:30] # Only the first 30 chars
return filename
@staticmethod
def generateRandomPlantName(genome):
""" Generates a random plant name """
# TODO: Should be based on the genome!
syllabes = ["al","inus","la","ta","va","inc","cannaba","ium","frax","inus"]
name = ""
for i in range(random.randint(4,7)):
name += syllabes[random.randint(0,len(syllabes)-1)]
if random.random() < 0.2: name += " "
return name
@staticmethod
def copyFrom(other_instance):
new_instance = GeneticInstance(ParametricLSystem.copyFrom(other_instance.lsystem))
new_instance.copyParametersFrom(other_instance)
return new_instance
