pygame.rar_P91_Pygame_Python 例程_pygame联合qt_python 游戏

SCREEN_SIZE = (640, 480) NEST_POSITION = (320, 240) ANT_COUNT = 20 NEST_SIZE = 100. import copy import pygame from pygame.locals import * from random import randint, choice from gameobjects.vector2 import Vector2 class State(object): def __init__(self, name): self.name = name def do_actions(self): pass def check_conditions(self): pass def entry_actions(self): pass def exit_actions(self): pass class StateMachine(object): def __init__(self): self.states = {} self.active_state = None def add_state(self, state): self.states[state.name] = state def think(self): if self.active_state is None: return self.active_state.do_actions() new_state_name = self.active_state.check_conditions() if new_state_name is not None: self.set_state(new_state_name) def set_state(self, new_state_name): if self.active_state is not None: self.active_state.exit_actions() self.active_state = self.states[new_state_name] self.active_state.entry_actions() class World(object): def __init__(self): self.entities = {} self.entity_id = 0 self.background = pygame.surface.Surface(SCREEN_SIZE).convert() self.background.fill((255, 255, 255)) pygame.draw.circle(self.background, (200, 255, 200), NEST_POSITION, int(NEST_SIZE)) def add_entity(self, entity): self.entities[self.entity_id] = entity entity.id = self.entity_id self.entity_id += 1 def remove_entity(self, entity): del self.entities[entity.id] def get(self, entity_id): if entity_id in self.entities: return self.entities[entity_id] else: return None def process(self, time_passed): time_passed_seconds = time_passed / 1000.0 entities2 = copy.copy(self.entities) for entity in entities2.values(): entity.process(time_passed_seconds) def render(self, surface): surface.blit(self.background, (0, 0)) for entity in self.entities.values(): entity.render(surface) def get_close_entity(self, name, location, range=100.): location = Vector2(*location) for entity in self.entities.values(): if entity.name == name: distance = location.get_distance_to(entity.location) if distance < range: return entity return None class GameEntity(object): def __init__(self, world, name, image): self.world = world self.name = name self.image = image self.location = Vector2(0, 0) self.destination = Vector2(0, 0) self.speed = 0. self.brain = StateMachine() self.id = 0 def render(self, surface): x, y = self.location w, h = self.image.get_size() surface.blit(self.image, (x-w/2, y-h/2)) def process(self, time_passed): self.brain.think() if self.speed > 0. and self.location != self.destination: vec_to_destination = self.destination - self.location distance_to_destination = vec_to_destination.get_length() heading = vec_to_destination.get_normalized() travel_distance = min(distance_to_destination, time_passed * self.speed) self.location += travel_distance * heading class Leaf(GameEntity): def __init__(self, world, image): GameEntity.__init__(self, world, "leaf", image) class Spider(GameEntity): def __init__(self, world, image): GameEntity.__init__(self, world, "spider", image) self.dead_image = pygame.transform.flip(image, 0, 1) self.health = 25 self.speed = 50. + randint(-20, 20) def bitten(self): self.health -= 1 if self.health <= 0: self.speed = 0. self.image = self.dead_image self.speed = 140. def render(self, surface): GameEntity.render(self, surface) x, y = self.location w, h = self.image.get_size() bar_x = x - 12 bar_y = y + h/2 surface.fill( (255, 0, 0), (bar_x, bar_y, 25, 4)) surface.fill( (0, 255, 0), (bar_x, bar_y, self.health, 4)) def process(self, time_passed): x, y = self.location if x > SCREEN_SIZE[0] + 2: self.world.remove_entity(self) return GameEntity.process(self, time_passed) class Ant(GameEntity): def __init__(self, world, image): GameEntity.__init__(self, world, "ant", image) exploring_state = AntStateExploring(self) seeking_state = AntStateSeeking(self) delivering_state = AntStateDelivering(self) hunting_state = AntStateHunting(self) self.brain.add_state(exploring_state) self.brain.add_state(seeking_state) self.brain.add_state(delivering_state) self.brain.add_state(hunting_state) self.carry_image = None def carry(self, image): self.carry_image = image def drop(self, surface): if self.carry_image: x, y = self.location w, h = self.carry_image.get_size() surface.blit(self.carry_image, (x-w, y-h/2)) self.carry_image = None def render(self, surface): GameEntity.render(self, surface) if self.carry_image: x, y = self.location w, h = self.carry_image.get_size() surface.blit(self.carry_image, (x-w, y-h/2)) class AntStateExploring(State): def __init__(self, ant): State.__init__(self, "exploring") self.ant = ant def random_destination(self): w, h = SCREEN_SIZE self.ant.destination = Vector2(randint(0, w), randint(0, h)) def do_actions(self): if randint(1, 20) == 1: self.random_destination() def check_conditions(self): leaf = self.ant.world.get_close_entity("leaf", self.ant.location) if leaf is not None: self.ant.leaf_id = leaf.id return "seeking" spider = self.ant.world.get_close_entity("spider", NEST_POSITION, NEST_SIZE) if spider is not None: if self.ant.location.get_distance_to(spider.location) < 100.: self.ant.spider_id = spider.id return "hunting" return None def entry_actions(self): self.ant.speed = 120. + randint(-30, 30) self.random_destination() class AntStateSeeking(State): def __init__(self, ant): State.__init__(self, "seeking") self.ant = ant self.leaf_id = None def check_conditions(self): leaf = self.ant.world.get(self.ant.leaf_id) if leaf is None: return "exploring" if self.ant.location.get_distance_to(leaf.location) < 5.0: self.ant.carry(leaf.image) self.ant.world.remove_entity(leaf) return "delivering" return None def entry_actions(self): leaf = self.ant.world.get(self.ant.leaf_id) if leaf is not None: self.ant.destination = leaf.location self.ant.speed = 160. + randint(-20, 20) class AntStateDelivering(State): def __init__(self, ant): State.__init__(self, "delivering") self.ant = ant def check_conditions(self): if Vector2(*NEST_POSITION).get_distance_to(self.ant.location) < NEST_SIZE: if (randint(1, 10) == 1): self.ant.drop(self.ant.world.background) return "exploring" return None def entry_actions(self): self.ant.speed = 60. random_offset = Vector2(rand