コード例 #1
0
    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)
コード例 #2
0
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))