import os import json import sys from abc import abstractmethod import pygame as pg from pygame.locals import * from . import constants as c # an abstract class, one state of automata class State(): def __init__(self): self.start_time = 0 self.current_time = 0 self.done = False # false 代表未做完 self.next = None # 表示这个状态退出后要转到的下一个状态 self.persist = {} # 在状态间转换时需要传递的数据 # 当从其他状态进入这个状态时，需要进行的初始化操作 @abstractmethod def startup(self, current_time, persist): '''abstract method''' # 当从这个状态退出时，需要进行的清除操作 def cleanup(self): self.done = False return self.persist # 在这个状态运行时进行的更新操作 @abstractmethod def update(self, surface, keys, current_time): '''abstract method''' # control this game. do event loops class Control(): def __init__(self): self.screen = pg.display.get_surface() self.done = False self.clock = pg.time.Clock() # 创建一个对象来帮助跟踪时间 self.fps = 50 * c.GAME_RATE self.keys = pg.key.get_pressed() self.mouse_pos = None self.mouse_click = [False, False] # value:[left mouse click, right mouse click] self.current_time = 0.0 self.state_dict = {} self.state_name = None self.state = None self.game_info = {c.CURRENT_TIME:0, c.LEVEL_NUM:c.START_LEVEL_NUM, c.LITTLEGAME_NUM:c.START_LITTLE_GAME_NUM} def setup_states(self, state_dict, start_state): self.state_dict = state_dict self.state_name = start_state self.state = self.state_dict[self.state_name] self.state.startup(self.current_time, self.game_info) def update(self): # 返回自 pygame_init() 调用以来的毫秒数 * 游戏速度倍率 self.current_time = pg.time.get_ticks() * c.GAME_RATE if self.state.done: self.flip_state() self.state.update(self.screen, self.current_time, self.mouse_pos, self.mouse_click) self.mouse_pos = None self.mouse_click[0] = False self.mouse_click[1] = False # 状态转移 def flip_state(self): if self.state.next == c.EXIT: pg.quit() os._exit(0) previous, self.state_name = self.state_name, self.state.next persist = self.state.cleanup() self.state = self.state_dict[self.state_name] self.state.startup(self.current_time, persist) def event_loop(self): for event in pg.event.get(): if event.type == pg.QUIT: self.done = True elif event.type == pg.KEYDOWN: self.keys = pg.key.get_pressed() if event.key == pg.K_f: SCREEN = pg.display.set_mode(c.SCREEN_SIZE, pg.HWSURFACE|pg.FULLSCREEN) elif event.key == pg.K_u: SCREEN = pg.display.set_mode(c.SCREEN_SIZE) elif event.type == pg.KEYUP: self.keys = pg.key.get_pressed() elif event.type == pg.MOUSEBUTTONDOWN: self.mouse_pos = pg.mouse.get_pos() self.mouse_click[0], _, self.mouse_click[1] = pg.mouse.get_pressed() # self.mouse_click[0]表示左键，self.mouse_click[1]表示右键 print('点击位置:', self.mouse_pos, '左右键点击情况:', self.mouse_click) def run(self): while not self.done: self.event_loop() self.update() pg.display.update() self.clock.tick(self.fps) print('game over') def get_image(sheet, x, y, width, height, colorkey=c.BLACK, scale=1): image = pg.Surface([width, height]) rect = image.get_rect() image.blit(sheet, (0, 0), (x, y, width, height)) if colorkey: image.set_colorkey(colorkey) image = pg.transform.scale(image, (int(rect.width*scale), int(rect.height*scale))) return image def get_image_menu(sheet, x, y, width, height, colorkey=c.BLACK, scale=1): # 一定要保留阿尔法通道，修复主菜单bug，游戏中car显示又有bug image = pg.Surface([width, height], SRCALPHA) rect = image.get_rect() image.blit(sheet, (0, 0), (x, y, width, height)) image.set_colorkey(colorkey) image = pg.transform.scale(image, (int(rect.width*scale), int(rect.height*scale))) return image def load_image_frames(directory, image_name, colorkey, accept): frame_list = [] tmp = {} # image_name is "Peashooter", pic name is 'Peashooter_1', get the index 1 index_start = len(image_name) + 1 frame_num = 0 for pic in os.listdir(directory): name, ext = os.path.splitext(pic) if ext.lower() in accept: index = int(name[index_start:]) img = pg.image.load(os.path.join(directory, pic)) if img.get_alpha(): img = img.convert_alpha() else: img = img.convert() img.set_colorkey(colorkey) tmp[index]= img frame_num += 1 for i in range(frame_num): # 这里注意编号必须连续，否则会出错 frame_list.append(tmp[i]) return frame_list # colorkeys 是设置图像中的某个颜色值为透明,这里用来消除白边 def load_all_gfx(directory, colorkey=c.WHITE, accept=('.png', '.jpg', '.bmp', '.gif', 'webp')): graphics = {} for name1 in os.listdir(directory): # subfolders under the folder resources\graphics dir1 = os.path.join(directory, name1) if os.path.isdir(dir1): for name2 in os.listdir(dir1): dir2 = os.path.join(dir1, name2) if os.path.isdir(dir2): # e.g. subfolders under the folder resources\graphics\Zombies for name3 in os.listdir(dir2): dir3 = os.path.join(dir2, name3) # e.g. subfolders or pics under the folder resources\graphics\Zombies\ConeheadZombie if os.path.isdir(dir3): # e.g. it's the folder resources\graphics\Zombies\ConeheadZombie\ConeheadZombieAttack image_name, _ = os.path.splitext(name3) graphics[image_name] = load_image_frames(dir3, image_name, colorkey, accept) else: # e.g. pics under the folder resources\graphics\Plants\Peashooter image_name, _ = os.path.splitext(name2) graphics[image_name] = load_image_frames(dir2, image_name, colorkey, accept) break else: # e.g. pics under the folder resources\graphics\Screen name, ext = os.path.splitext(name2) if ext.lower() in accept: img = pg.image.load(dir2) if img.get_alpha(): img = img.convert_alpha() else: img = img.convert() img.set_colorkey(colorkey) graphics[name] = img return graphics # 从文件加载矩形碰撞范围 # 用于消除文件边框影响 def loadZombieImageRect(): file_path = os.path.join(os.path.dirname(os.path.dirname(__file__)), 'resources', 'data', 'entity', 'zombie.json') f = open(file_path) data = json.load(f) f.close() return data[c.ZOMBIE_IMAGE_RECT] def loadPlantImageRect(): file_path = os.path.join(os.path.dirname(os.path.dirname(__file__)), 'resources', 'data', 'entity', 'plant.json') f = open(file_path) data = json.load(f) f.close() return data[c.PLANT_IMAGE_RECT] pg.init() pg.display.set_caption(c.ORIGINAL_CAPTION) # 设置标题 SCREEN = pg.display.set_mode(c.SCREEN_SIZE) # 设置初始屏幕 try: # 设置窗口图标，仅对非Nuitka时生效，Nuitka不需要包括额外的图标文件，自动跳过这一过程即可 pg.display.set_icon(pg.image.load(os.path.join(os.path.dirname(os.path.dirname(__file__)), c.ORIGINAL_LOGO))) except: pass GFX = load_all_gfx(os.path.join(os.path.dirname(os.path.dirname(__file__)) ,os.path.join("resources","graphics"))) ZOMBIE_RECT = loadZombieImageRect() PLANT_RECT = loadPlantImageRect() # 播放音乐 pg.mixer.init() pg.mixer.music.load(os.path.join(os.path.dirname(os.path.dirname(__file__)) ,"resources", "music", "intro.opus")) pg.mixer.music.play(-1, 0)