import os import sys import cfg import random import pygame from modules import * '''开始游戏''' def startGame(screen): clock = pygame.time.Clock() # 加载字体 font = pygame.font.SysFont('arial', 18) if not os.path.isfile('score'): f = open('score', 'w') f.write('0') f.close() with open('score', 'r') as f: highest_score = int(f.read().strip()) # 敌方 enemies_group = pygame.sprite.Group() for i in range(55): if i < 11: enemy = enemySprite('small', i, cfg.WHITE, cfg.WHITE) elif i < 33: enemy = enemySprite('medium', i, cfg.WHITE, cfg.WHITE) else: enemy = enemySprite('large', i, cfg.WHITE, cfg.WHITE) enemy.rect.x = 85 + (i % 11) * 50 enemy.rect.y = 120 + (i // 11) * 45 enemies_group.add(enemy) boomed_enemies_group = pygame.sprite.Group() en_bullets_group = pygame.sprite.Group() ufo = ufoSprite(color=cfg.RED) # 我方 myaircraft = aircraftSprite(color=cfg.GREEN, bullet_color=cfg.WHITE) my_bullets_group = pygame.sprite.Group() # 用于控制敌方位置更新 # --移动一行 enemy_move_count = 24 enemy_move_interval = 24 enemy_move_flag = False # --改变移动方向(改变方向的同时集体下降一次) enemy_change_direction_count = 0 enemy_change_direction_interval = 60 enemy_need_down = False enemy_move_right = True enemy_need_move_row = 6 enemy_max_row = 5 # 用于控制敌方发射子弹 enemy_shot_interval = 100 enemy_shot_count = 0 enemy_shot_flag = False # 游戏进行中 running = True is_win = False # 主循环 while running: screen.fill(cfg.BLACK) for event in pygame.event.get(): # --点右上角的X或者按Esc键退出游戏 if event.type == pygame.QUIT: pygame.quit() sys.exit() if event.type == pygame.KEYDOWN: if event.key == pygame.K_ESCAPE: pygame.quit() sys.exit() # --射击 if event.type == pygame.MOUSEBUTTONDOWN: my_bullet = myaircraft.shot() if my_bullet: my_bullets_group.add(my_bullet) # --我方子弹与敌方/UFO碰撞检测 for enemy in enemies_group: if pygame.sprite.spritecollide(enemy, my_bullets_group, True, None): boomed_enemies_group.add(enemy) enemies_group.remove(enemy) myaircraft.score += enemy.reward if pygame.sprite.spritecollide(ufo, my_bullets_group, True, None): ufo.is_dead = True myaircraft.score += ufo.reward # --更新并画敌方 # ----敌方子弹 enemy_shot_count += 1 if enemy_shot_count > enemy_shot_interval: enemy_shot_flag = True enemies_survive_list = [enemy.number for enemy in enemies_group] shot_number = random.choice(enemies_survive_list) enemy_shot_count = 0 # ----敌方移动 enemy_move_count += 1 if enemy_move_count > enemy_move_interval: enemy_move_count = 0 enemy_move_flag = True enemy_need_move_row -= 1 if enemy_need_move_row == 0: enemy_need_move_row = enemy_max_row enemy_change_direction_count += 1 if enemy_change_direction_count > enemy_change_direction_interval: enemy_change_direction_count = 1 enemy_move_right = not enemy_move_right enemy_need_down = True # ----每次下降提高移动和射击速度 enemy_move_interval = max(15, enemy_move_interval-3) enemy_shot_interval = max(50, enemy_move_interval-10) # ----遍历更新 for enemy in enemies_group: if enemy_shot_flag: if enemy.number == shot_number: en_bullet = enemy.shot() en_bullets_group.add(en_bullet) if enemy_move_flag: if enemy.number in range((enemy_need_move_row-1)*11, enemy_need_move_row*11): if enemy_move_right: enemy.update('right', cfg.SCREENSIZE[1]) else: enemy.update('left', cfg.SCREENSIZE[1]) else: enemy.update(None, cfg.SCREENSIZE[1]) if enemy_need_down: if enemy.update('down', cfg.SCREENSIZE[1]): running = False is_win = False enemy.change_count -= 1 enemy.draw(screen) enemy_move_flag = False enemy_need_down = False enemy_shot_flag = False # ----敌方爆炸特效 for boomed_enemy in boomed_enemies_group: if boomed_enemy.boom(screen): boomed_enemies_group.remove(boomed_enemy) del boomed_enemy # --敌方子弹与我方飞船碰撞检测 if not myaircraft.one_dead: if pygame.sprite.spritecollide(myaircraft, en_bullets_group, True, None): myaircraft.one_dead = True if myaircraft.one_dead: if myaircraft.boom(screen): myaircraft.resetBoom() myaircraft.num_life -= 1 if myaircraft.num_life < 1: running = False is_win = False else: # ----更新飞船 myaircraft.update(cfg.SCREENSIZE[0]) # ----画飞船 myaircraft.draw(screen) if (not ufo.has_boomed) and (ufo.is_dead): if ufo.boom(screen): ufo.has_boomed = True else: # ----更新UFO ufo.update(cfg.SCREENSIZE[0]) # ----画UFO ufo.draw(screen) # --画我方飞船子弹 for bullet in my_bullets_group: if bullet.update(): my_bullets_group.remove(bullet) del bullet else: bullet.draw(screen) # --画敌方子弹 for bullet in en_bullets_group: if bullet.update(cfg.SCREENSIZE[1]): en_bullets_group.remove(bullet) del bullet else: bullet.draw(screen) if myaircraft.score > highest_score: highest_score = myaircraft.score # --得分每增加2000我方飞船增加一条生命 if (myaircraft.score % 2000 == 0) and (myaircraft.score > 0) and (myaircraft.score != myaircraft.old_score): myaircraft.old_score = myaircraft.score myaircraft.num_life = min(myaircraft.num_life + 1, myaircraft.max_num_life) # --敌人都死光了的话就胜利了 if len(enemies_group) < 1: is_win = True running = False # --显示文字 # ----当前得分 showText(screen, 'SCORE: ', cfg.WHITE, font, 200, 8) showText(screen, str(myaircraft.score), cfg.WHITE, font, 200, 24) # ----敌人数量 showText(screen, 'ENEMY: ', cfg.WHITE, font, 370, 8) showText(screen, str(len(enemies_group)), cfg.WHITE, font, 370, 24) # ----历史最高分 showText(screen, 'HIGHEST: ', cfg.WHITE, font, 540, 8) showText(screen, str(highest_score), cfg.WHITE, font, 540, 24) # ----FPS showText(screen, 'FPS: ' + str(int(clock.get_fps())), cfg.RED, font, 8, 8) # --显示剩余生命值 showLife(screen, myaircraft.num_life, cfg.GREEN) pygame.display.update() clock.tick(cfg.FPS) with open('score', 'w') as f: f.write(str(highest_score)) return is_win '''主函数''' def main(): # 初始化 pygame.init() pygame.display.set_caption('外星人入侵 —— 九歌') screen = pygame.display.set_mode(cfg.SCREENSIZE) pygame.mixer.init() pygame.mixer.music.load(cfg.BGMPATH) pygame.mixer.music.set_volume(0.4) pygame.mixer.music.play(-1) while True: is_win = startGame(screen) endInterface(screen, cfg.BLACK, is_win) '''run''' if __name__ == '__main__': main()
