def __init__(self, config):
observer.Observable.__init__(self)
Configurable.__init__(self,
config=config,
config_fields=[
'space_width', 'space_height',
'nutrient_regen', 'nutrient_energy',
'nutrient_density', 'init_indiv_density',
'init_indiv_count', 'neighbor_access',
'incubator', 'terminated'
])
self.space = Space((self.space_width, self.space_height))
self.object_counter = defaultdict(int)
self.step_number = 0 # step counter ; just an information
def __init__(self, config):
observer.Observable.__init__(self)
Configurable.__init__(self, config=config, config_fields=[
'space_width', 'space_height',
'nutrient_regen', 'nutrient_energy', 'nutrient_density',
'init_indiv_density', 'init_indiv_count', 'neighbor_access',
'incubator', 'terminated'
])
self.space = Space((self.space_width, self.space_height))
self.object_counter = defaultdict(int)
self.step_number = 0 # step counter ; just an information
class World(observer.Observable, Configurable):
"""Data container about the simulation.
Provides API for Actions subclasses and Observers.
"""
def __init__(self, config):
observer.Observable.__init__(self)
Configurable.__init__(self,
config=config,
config_fields=[
'space_width', 'space_height',
'nutrient_regen', 'nutrient_energy',
'nutrient_density', 'init_indiv_density',
'init_indiv_count', 'neighbor_access',
'incubator', 'terminated'
])
self.space = Space((self.space_width, self.space_height))
self.object_counter = defaultdict(int)
self.step_number = 0 # step counter ; just an information
def populate(self):
"""Populate the world as in initial case.
Note that without call this before any other treatment,
some methods can go wrong and the space can be
totally uninintialized.
Call this after register all observers seems to be a good idea, as some
initialization treatment (first individuals spawning for example) can
interest some of them.
"""
self.notify_observers() # all observers can begin to work
# Populate the world according to densities
for coords, square in self.ordered_objects:
if random.random() < self.nutrient_density:
square.add(Nutrient())
self.object_counter[Nutrient] += 1
if self.init_indiv_density > 0.:
if random.random() < self.init_indiv_density:
self.spawn(square)
# Add indiv_count individuals in the world, randomly
if self.init_indiv_count > 0:
for _ in range(self.init_indiv_count):
self.spawn(self.random_coords())
def remove(self, obj, place):
"""Remove an object from space at given coords/square, and return it.
obj: an individual or a nutrient.
place: coords (2-tuple) or square (set) from obj will be removed.
"""
if isinstance(place, set): square = place
else: square = self.space[place]
square.remove(obj)
self.object_counter[obj.__class__] -= 1
return obj
def add(self, obj, place):
"""Place given obj at given coords or square, and return it.
obj: an individual or a nutrient.
place: coords (2-tuple) or square (set) where the obj will be placed.
"""
if isinstance(place, set): # its a square !
place.add(obj)
else: # its coords !
self.space[place].add(obj)
self.object_counter[obj.__class__] += 1
return obj
def move(self, obj, coords, directions):
"""Move given obj placed at given coords in the given direction"""
new_coords = commons.Direction.final_coords(coords, directions)
if not self.space.occuped_at(new_coords):
self.remove(obj, coords)
self.add(obj, new_coords)
coords = new_coords
LOGGER.debug('MOVE: ' + str(obj) + ': ' + str(coords) + ' -> ' +
str(directions) + ' -> ' + str(new_coords))
def pick_nutrient(self, individual, coords):
"""Give to individual the energy of a nutrient at given coords"""
assert individual.is_individual
individual.energy += self.consume_nutrient(coords)
LOGGER.debug('CONSUME NUTRIENTS: ' + str(individual))
def spawn(self, place=None):
"""Create and place a new indiv, created from incubator."""
# Use random coords if no coords given
if place is None:
place = self.random_coords()
# Create the new indiv and add it to space
new = self.incubator.spawn()
self.add(new, place)
# Logs it and send signal to observers
LOGGER.info('NEW INDIVIDUAL: ' + str(new) + '.')
self.notify_observers(
{observer.Signal.NEW_INDIVIDUAL: (new, None, place)})
def spawn_from(self, indiv, coords):
"""Create and place a new indiv, created from given one at given coords."""
new = self.incubator.clone(indiv)
new_coords = self.random_neighbor(coords)
if not self.space.occuped_at(new_coords):
self.add(new, new_coords)
LOGGER.info('REPLICATE: ' + str(indiv) + ' gives ' + str(new) +
' at coords ' + str(new_coords) + '.')
self.notify_observers(
{observer.Signal.NEW_INDIVIDUAL: (new, indiv, new_coords)})
def random_neighbor(self, coords):
"""Return a random coord, choosen in the neighbors of given coords"""
return random.choice(tuple(self.neighbor_access(coords)))
def regenerate_nutrient(self):
"""Place randomly nutrient in the world"""
for square in self.squares:
if random.random() <= self.nutrient_regen:
square.add(Nutrient())
def consume_nutrient(self, coords):
"""Remove a Nutrient instance from coords and return
the associated amount of energy."""
square = self.space[coords]
nutrient = None
for obj in square:
if obj.is_nutrient:
nutrient = obj
break
if nutrient:
self.remove(nutrient, coords)
return nutrient.energy
else:
return 0
def __iter__(self):
return ((coords, obj) for coords, objects in self.space.items()
for obj in objects)
def random_coords(self):
return (random.randrange(self.space_width),
random.randrange(self.space_height))
@property
def have_life(self):
return self.object_counter[Individual] > 0
@property
def ordered_objects(self):
return ((coords, self.space[coords]) for coords in itertools.product(
range(self.space_width), range(self.space_height)))
@property
def squares(self):
return self.space.values()
def neighbors(self, coords):
"Return a generator of coords that are the neighbors of given ones"
return (self.space[neighbor]
for neighbor in default.NEIGHBOR_ACCESS(coords))
def deinit(self):
self.deinit_observers()
class World(observer.Observable, Configurable):
"""Data container about the simulation.
Provides API for Actions subclasses and Observers.
"""
def __init__(self, config):
observer.Observable.__init__(self)
Configurable.__init__(self, config=config, config_fields=[
'space_width', 'space_height',
'nutrient_regen', 'nutrient_energy', 'nutrient_density',
'init_indiv_density', 'init_indiv_count', 'neighbor_access',
'incubator', 'terminated'
])
self.space = Space((self.space_width, self.space_height))
self.object_counter = defaultdict(int)
self.step_number = 0 # step counter ; just an information
def populate(self):
"""Populate the world as in initial case.
Note that without call this before any other treatment,
some methods can go wrong and the space can be
totally uninintialized.
Call this after register all observers seems to be a good idea, as some
initialization treatment (first individuals spawning for example) can
interest some of them.
"""
self.notify_observers() # all observers can begin to work
# Populate the world according to densities
for coords, square in self.ordered_objects:
if random.random() < self.nutrient_density:
square.add(Nutrient())
self.object_counter[Nutrient] += 1
if self.init_indiv_density > 0.:
if random.random() < self.init_indiv_density:
self.spawn(square)
# Add indiv_count individuals in the world, randomly
if self.init_indiv_count > 0:
for _ in range(self.init_indiv_count):
self.spawn(self.random_coords())
def remove(self, obj, place):
"""Remove an object from space at given coords/square, and return it.
obj: an individual or a nutrient.
place: coords (2-tuple) or square (set) from obj will be removed.
"""
if isinstance(place, set): square = place
else: square = self.space[place]
square.remove(obj)
self.object_counter[obj.__class__] -= 1
return obj
def add(self, obj, place):
"""Place given obj at given coords or square, and return it.
obj: an individual or a nutrient.
place: coords (2-tuple) or square (set) where the obj will be placed.
"""
if isinstance(place, set): # its a square !
place.add(obj)
else: # its coords !
self.space[place].add(obj)
self.object_counter[obj.__class__] += 1
return obj
def move(self, obj, coords, directions):
"""Move given obj placed at given coords in the given direction"""
new_coords = commons.Direction.final_coords(coords, directions)
if not self.space.occuped_at(new_coords):
self.remove(obj, coords)
self.add(obj, new_coords)
coords = new_coords
LOGGER.debug('MOVE: ' + str(obj) + ': ' + str(coords) + ' -> '
+ str(directions) + ' -> ' + str(new_coords))
def pick_nutrient(self, individual, coords):
"""Give to individual the energy of a nutrient at given coords"""
assert individual.is_individual
individual.energy += self.consume_nutrient(coords)
LOGGER.debug('CONSUME NUTRIENTS: ' + str(individual))
def spawn(self, place=None):
"""Create and place a new indiv, created from incubator."""
# Use random coords if no coords given
if place is None:
place = self.random_coords()
# Create the new indiv and add it to space
new = self.incubator.spawn()
self.add(new, place)
# Logs it and send signal to observers
LOGGER.info('NEW INDIVIDUAL: ' + str(new) + '.')
self.notify_observers({observer.Signal.NEW_INDIVIDUAL: (new, None, place)})
def spawn_from(self, indiv, coords):
"""Create and place a new indiv, created from given one at given coords."""
new = self.incubator.clone(indiv)
new_coords = self.random_neighbor(coords)
if not self.space.occuped_at(new_coords):
self.add(new, new_coords)
LOGGER.info('REPLICATE: ' + str(indiv) + ' gives ' + str(new) +
' at coords ' + str(new_coords) + '.')
self.notify_observers({observer.Signal.NEW_INDIVIDUAL:
(new, indiv, new_coords)})
def random_neighbor(self, coords):
"""Return a random coord, choosen in the neighbors of given coords"""
return random.choice(tuple(self.neighbor_access(coords)))
def regenerate_nutrient(self):
"""Place randomly nutrient in the world"""
for square in self.squares:
if random.random() <= self.nutrient_regen:
square.add(Nutrient())
def consume_nutrient(self, coords):
"""Remove a Nutrient instance from coords and return
the associated amount of energy."""
square = self.space[coords]
nutrient = None
for obj in square:
if obj.is_nutrient:
nutrient = obj
break
if nutrient:
self.remove(nutrient, coords)
return nutrient.energy
else:
return 0
def __iter__(self):
return (
(coords, obj)
for coords, objects in self.space.items()
for obj in objects
)
def random_coords(self):
return (random.randrange(self.space_width),
random.randrange(self.space_height))
@property
def have_life(self):
return self.object_counter[Individual] > 0
@property
def ordered_objects(self):
return (
(coords, self.space[coords])
for coords in itertools.product(
range(self.space_width), range(self.space_height)
)
)
@property
def squares(self):
return self.space.values()
def neighbors(self, coords):
"Return a generator of coords that are the neighbors of given ones"
return (
self.space[neighbor]
for neighbor in default.NEIGHBOR_ACCESS(coords)
)
def deinit(self):
self.deinit_observers()
