经历了长年的艰苦卓绝的披星戴月的惨绝人寰的跋山涉水，我们终于接近了AI之旅的尾声（好吧，实际上我们这才是刚刚开始）。这一次真正展示一下这几回辛勤工作的结果，最后的画面会是这个样子：
下面给出完整代码（注意需要gameobjects库才可以运行，参考之前的向量篇）：
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SCREEN_SIZE = (640, 480) NEST_POSITION = (320, 240) ANT_COUNT = 20 NEST_SIZE = 100. 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 for entity in self.entities.values(): entity.process(time_passed_seconds) def render(self, surface): |
