def load(self, creatures=None, foods=None):
"""Sets up various game world objects"""
self.entities = []
self.scene_graph = SceneGraph()
self.scene_graph.add(self.spinner)
if creatures and foods:
for creature in creatures:
self._insert_creature(creature)
for food in foods:
self._insert_food(food)
else:
# Create creatures
for x in range(self.num_of_creatures):
self._insert_new_creature()
# Create foods
for x in range(self.num_of_food):
self._insert_new_food()
# Setup text boxes
self.speed_textbox = TextBox("", (10, self.CAM_HEIGHT - 40))
self.creature_stats_textbox = MultilineTextBox([""], (10, 10))
self.population_stats_textbox = MultilineTextBox([""], (self.CAM_WIDTH-300, 10))
num_creatures_text = "{} Creatures, {} Food".format(self.num_of_creatures, self.num_of_food)
self.num_creatures_textbox = TextBox(num_creatures_text, (10, self.CAM_HEIGHT - 70))
self.ui.add(self.speed_textbox)
self.ui.add(self.creature_stats_textbox)
self.ui.add(self.num_creatures_textbox)
self.ui.add(self.population_stats_textbox)
class CreatureSim(PyGameBase):
"""Runs the creature sim game"""
CAMERA_MOVE_SPEED = .5
GAME_SPEED_INCREMENT = .1
MAX_GAME_SPEED = 2.0
MIN_GAME_SPEED = .1
WORLD_WIDTH = 100000
WORLD_HEIGHT = 100000
SELECTED_COLOR = GREEN
def __init__(self):
super().__init__()
self.infoObject = pygame.display.Info()
self.CAM_HEIGHT = self.infoObject.current_h - 80
self.CAM_WIDTH = int(self.infoObject.current_w-100)
self.num_of_creatures = 180
self.num_of_food = 100
self.game_bounds = (-5000, 5000)
self.running = True
# self.camera = Camera(self.CAM_WIDTH, self.CAM_HEIGHT, x=-(self.CAM_WIDTH / 2), y=-(self.CAM_HEIGHT / 2))
self.camera = Camera(self.CAM_WIDTH, self.CAM_HEIGHT, x=0, y=0, zoom=1.0)
self.screen = pygame.display.set_mode((self.CAM_WIDTH, self.CAM_HEIGHT))
self.fullscreen = False
# QuadTree for collision detection
self.quadtree = QuadTree(
bounds=(
-self.WORLD_WIDTH/2,
-self.WORLD_HEIGHT/2,
self.WORLD_WIDTH,
self.WORLD_HEIGHT),
depth=9)
self.ui = UserInterface(self.screen)
self.dt = 0
# Will draw the quadtree overlay if true
self.draw_quadtree = False
self.paused = False
# When the user clicks on the screen it's position will be stored here
self.mouse_screen_position = None
self.mouse_real_position = None
# How fast everything moves
self.game_speed = 1.0
self.selected_creature = None
self.follow_creature = False
self.breeder = Breeder()
self.population_stats = StatsTracker()
self.spinner = Background()
def run(self):
self.load()
self.setup_keys()
self.game_loop()
def game_loop(self):
while self.running:
self.dt = self.clock.tick()
self.screen.fill(BLACK)
self.handle_events()
self.handle_key_presses()
self.update_creature_positions()
self.scene_graph.update()
self.center_camera()
self.quadtree.update_objects(self.entities)
self.handle_collisions()
self.do_obj_events()
self.render_frame()
def render_frame(self):
pygame.display.set_caption(str(self.clock.get_fps()))
# Find all objects in nodes intersecting the screen
objects_to_draw = self.quadtree.get_objects_at_bounds(self.camera.get_bounds())
for scene_object in objects_to_draw:
scene_object.draw(self.screen, self.camera)
if self.draw_quadtree:
self.quadtree.draw_tree(self.screen, self.camera)
self.draw_ui()
pygame.display.flip()
def center_camera(self):
if self.selected_creature and self.follow_creature:
self.camera.position[0] = self.selected_creature.position[0]
self.camera.position[1] = self.selected_creature.position[1]
def do_obj_events(self):
if not self.paused:
self.check_healths()
def remove_creature(self, creature):
if creature.selected:
self.unfollow_creature()
self.quadtree.remove(creature)
self.entities.remove(creature)
self.entities.remove(creature.vision_cone)
self.scene_graph.remove(creature)
def check_healths(self):
for creature in self.get_creatures():
if creature.health <= 0:
self.remove_creature(creature)
self._breed_creature()
for food in self.get_foods():
if food.eaten == True:
self.quadtree.remove(food)
self.entities.remove(food)
self._insert_new_food()
def _insert_new_creature(self):
new_creature = Creature(
x=randrange(*self.game_bounds),
y=randrange(*self.game_bounds),
color=WHITE
)
new_creature.vision_cone = VisionCone(parent=new_creature, x=265, color=RED)
self.entities.append(new_creature.vision_cone)
self._insert_creature(new_creature)
return new_creature
def _insert_creature(self, creature):
self.entities.append(creature)
creature.calc_absolute_position()
self.scene_graph.add(creature)
self.scene_graph.add_to_parent(creature.vision_cone, creature, transformer=OldStyleTransformer)
self.quadtree.insert(creature)
def _insert_new_food(self):
new_food = Food(
x=randrange(*self.game_bounds),
y=randrange(*self.game_bounds),
color=DARKGREEN
)
self._insert_food(new_food)
return new_food
def _insert_food(self, food):
self.entities.append(food)
food.calc_absolute_position()
self.quadtree.insert(food)
def _breed_creature(self):
new_weights = self.breeder.breed(list(self.get_creatures()))
new_creature = Creature(
x=randrange(*self.game_bounds),
y=randrange(*self.game_bounds),
nn_weights=new_weights
)
new_creature.vision_cone = VisionCone(parent=new_creature, x=265, color=RED)
self.entities.append(new_creature.vision_cone)
self._insert_creature(new_creature)
return new_creature
def handle_collisions(self):
# Handle collisions for each creature's vision cone
for creature in self.get_creatures():
# Get rough idea of what things could be colliding
first_pass = self.quadtree.get_objects_at_bounds(creature.get_bounds())
if first_pass:
for entity in first_pass:
creature.vision_cone.check_collision(entity)
creature.check_collision(entity)
for entity in self.entities:
entity.finish_collisions()
def handle_key_presses(self):
# Camera Zoom
if self.key_presses["zoom-in"]:
self.camera.zoom_in(self.dt)
if self.key_presses["zoom-out"]:
self.camera.zoom_out(self.dt)
# Camera movement
if not self.follow_creature:
if self.key_presses["cam-up"]:
self.camera.move(y_change=-self.dt * self.CAMERA_MOVE_SPEED)
if self.key_presses["cam-down"]:
self.camera.move(y_change=self.dt * self.CAMERA_MOVE_SPEED)
if self.key_presses["cam-left"]:
self.camera.move(x_change=-self.dt * self.CAMERA_MOVE_SPEED)
if self.key_presses["cam-right"]:
self.camera.move(x_change=self.dt * self.CAMERA_MOVE_SPEED)
def handle_events(self):
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
self.register_key_presses(event)
def register_key_presses(self, event):
# Key Down
########################
if event.type == KEYDOWN:
if event.key == K_ESCAPE:
raise SystemExit()
try:
self.key_presses[self.key_map[event.key]] = True
except KeyError:
pass
if event.key == K_t:
self.draw_quadtree = not self.draw_quadtree
if event.key == K_b:
self.select_best()
if event.key == K_F5:
self.save_state()
if event.key == K_F9:
self.load_state()
if event.key == K_p:
self.paused = not self.paused
if event.key == K_F11:
self.toggle_fullscreen()
if event.key == K_f:
self.toggle_follow_creature()
if event.key == K_RIGHTBRACKET:
self.speedup_game()
if event.key == K_LEFTBRACKET:
self.slowdown_game()
# Key Up
########################
if event.type == KEYUP:
try:
self.key_presses[self.key_map[event.key]] = False
except KeyError:
pass
# Mouse Down
########################
if event.type == pygame.MOUSEBUTTONDOWN:
self.handle_click()
def toggle_fullscreen(self):
self.fullscreen = not self.fullscreen
if self.fullscreen:
pygame.display.set_mode((self.CAM_WIDTH, self.CAM_HEIGHT), pygame.FULLSCREEN)
else:
pygame.display.set_mode((self.CAM_WIDTH, self.CAM_HEIGHT))
def save_state(self):
def export_items(items):
with open('weight_data.pickle', 'wb+') as f:
pickle.dump(items, f)
# dump the creatures and food stuffs
# let's get all the creatures first
x = list(self.get_creatures())
y = list(self.get_foods())
export_items([x, y])
self.ui.toast("Saved Simulation")
def load_state(self):
def retrieve_items():
with open('weight_data.pickle', 'rb+') as f:
return pickle.load(f)
try:
creatures, foods = retrieve_items()
except:
return
self.reload(creatures, foods)
self.ui.toast("Loaded Simulation")
def toggle_follow_creature(self):
if self.selected_creature:
self.follow_creature = not self.follow_creature
def unfollow_creature(self):
self.follow_creature = False
def select_best(self):
self.unselect_creature()
self.unfollow_creature()
best = self._find_best()
self.select_creature(best)
self.toggle_follow_creature()
def _find_best(self):
return max(self.get_creatures(), key=lambda c: c.total_food_eaten)
def select_creature(self, creature):
self.selected_creature = creature
creature.selected = True
def unselect_creature(self):
if self.selected_creature:
self.selected_creature.selected = False
self.selected_creature = None
self.unfollow_creature()
def handle_click(self):
self.mouse_screen_position = pygame.mouse.get_pos()
self.mouse_real_position = self.camera.real_position(self.mouse_screen_position)
hit = self.quadtree.ray_cast(self.mouse_real_position)
if hit:
# If our hit is a Creature
if issubclass(type(hit), Creature):
self.unselect_creature()
self.select_creature(hit)
def _reload_init(self):
self.quadtree = QuadTree(
bounds=(
-self.WORLD_WIDTH/2,
-self.WORLD_HEIGHT/2,
self.WORLD_WIDTH,
self.WORLD_HEIGHT),
depth=9)
self.ui = UserInterface(self.screen)
self.dt = 0
# When the user clicks on the screen it's position will be stored here
self.mouse_screen_position = None
self.mouse_real_position = None
# How fast everything moves
self.game_speed = 1.0
self.selected_creature = None
self.follow_creature = False
self.population_stats = StatsTracker()
def reload(self, creatures, foods):
self._reload_init()
self.load(creatures, foods)
def load(self, creatures=None, foods=None):
"""Sets up various game world objects"""
self.entities = []
self.scene_graph = SceneGraph()
self.scene_graph.add(self.spinner)
if creatures and foods:
for creature in creatures:
self._insert_creature(creature)
for food in foods:
self._insert_food(food)
else:
# Create creatures
for x in range(self.num_of_creatures):
self._insert_new_creature()
# Create foods
for x in range(self.num_of_food):
self._insert_new_food()
# Setup text boxes
self.speed_textbox = TextBox("", (10, self.CAM_HEIGHT - 40))
self.creature_stats_textbox = MultilineTextBox([""], (10, 10))
self.population_stats_textbox = MultilineTextBox([""], (self.CAM_WIDTH-300, 10))
num_creatures_text = "{} Creatures, {} Food".format(self.num_of_creatures, self.num_of_food)
self.num_creatures_textbox = TextBox(num_creatures_text, (10, self.CAM_HEIGHT - 70))
self.ui.add(self.speed_textbox)
self.ui.add(self.creature_stats_textbox)
self.ui.add(self.num_creatures_textbox)
self.ui.add(self.population_stats_textbox)
def update_creature_positions(self):
if not self.paused:
for creature in self.get_creatures():
network = creature.nn
network.compute_network()
creature.rotate((self.dt * creature.rotation_speed) * self.game_speed)
creature.move_forward((self.dt * creature.speed) * self.game_speed)
creature.do_everyframe_action(self.dt, self.game_speed)
creature.update_position()
def speedup_game(self):
self.game_speed = min(self.MAX_GAME_SPEED, self.game_speed + self.GAME_SPEED_INCREMENT)
def slowdown_game(self):
self.game_speed = max(self.MIN_GAME_SPEED, self.game_speed - self.GAME_SPEED_INCREMENT)
def setup_keys(self):
"""Sets up key presses"""
key_map = {
K_w: "cam-up",
K_s: "cam-down",
K_a: "cam-left",
K_d: "cam-right",
K_e: "zoom-out",
K_q: "zoom-in",
}
self.register_keys(key_map)
def draw_ui(self):
ui = self.ui
if self.paused:
speed_text = "Speed: Paused"
else:
speed_text = "Speed: {:.2}x".format(self.game_speed)
self.speed_textbox.set(speed_text)
if self.selected_creature:
self.creature_stats_textbox.set(self.selected_creature.get_stats())
else:
self.creature_stats_textbox.clear()
stats = self.population_stats.update(list(self.get_creatures()))
self.population_stats_textbox.set(stats)
ui.draw()
def get_creatures(self):
return (entity for entity in self.entities if issubclass(type(entity), Creature))
def get_foods(self):
return (entity for entity in self.entities if issubclass(type(entity), Food))