小时候玩的“坦克大战”，你还记得吗？

环境依赖

• python3.7

• pygame1.9.6

• urllib

• 内置库，如random、sys、time、os等

pygame介绍

Pygame被设计用来写游戏的python模块集合，基于SDL库开发。使用python可以导入pygame来开发具有全部特性的游戏和多媒体软件，Pygame是极度轻便的并且可以运行在几乎所有的平台和操作系统上。

1. 导入依赖 & 通用配置

import random
import sys
import time
from urllib.request import urlretrieve
import os
import pygameSCREEN_WIDTH, SCREEN_HEIGHT = 1200, 700  # 画面大小
MY_BIRTH_LEFT, MY_BIRTH_TOP = SCREEN_WIDTH / 2, SCREEN_HEIGHT - 60
DIRECTION = [U, D, L, R] = [ U ,  D ,  L ,  R ]  # 控制键
Tank_IMAGE_POSITION = r D:/tank_img
URL =  https://gitee.com/tyoui/logo/raw/master/img/

 2. 通用加载函数

# 加载图片
def load_img(name_img):save = Tank_IMAGE_POSITION + os.sep + name_img +  .gifif not os.path.exists(save):urlretrieve(URL + name_img +  .gif , save)return pygame.image.load(save)# 加载背景音乐
def load_music(name_music):save = Tank_IMAGE_POSITION + os.sep + name_music +  .wavif not os.path.exists(save):urlretrieve(URL + name_music +  .wav , save)pygame.mixer.music.load(save)pygame.mixer.music.play()

3. 通用基础类

* pygame.sprite模块，官方文档上说这个模块是轻量级的，在游戏开发中也未必要使用。
* sprite翻译为精灵，在游戏动画一般是指一个独立运动的画面元素，在pygame中，
就可以是一个带有图像（Surface）和大小位置（Rect）的对象。
* pygame.sprite.Sprite是pygame精灵的基类，一般来说，需要写一个自己的精灵类继承一下它然后加入自己的代码。class BaseItem(pygame.sprite.Sprite):def __init__(self):super().__init__()

4. 定义bullet类

class Bullet(BaseItem):# 参数初始化def __init__(self, tank, window):super().__init__()self.direction = tank.directionself.speed = tank.speed * 3self.img = load_img( bullet )self.rect = self.img.get_rect()self.window = windowself.live = Trueif self.direction == U:self.rect.left = tank.rect.left + tank.rect.width / 2 - self.rect.width / 2self.rect.top = tank.rect.top - self.rect.heightelif self.direction == D:self.rect.left = tank.rect.left + tank.rect.width / 2 - self.rect.width / 2self.rect.top = tank.rect.top + tank.rect.heightelif self.direction == L:self.rect.left = tank.rect.left - self.rect.width / 2 - self.rect.width / 2self.rect.top = tank.rect.top + tank.rect.height / 2 - self.rect.height / 2else:self.rect.left = tank.rect.left + tank.rect.widthself.rect.top = tank.rect.top + tank.rect.height / 2 - self.rect.height / 2# 子弹显示def display_bullet(self):self.window.blit(self.img, self.rect)# 通过按键控制子弹移动def bullet_move(self):if self.direction == U:if self.rect.top > 0:self.rect.top -= self.speedreturnelif self.direction == D:if self.rect.top < SCREEN_HEIGHT:self.rect.top += self.speedreturnelif self.direction == L:if self.rect.left > 0:self.rect.left -= self.speedreturnelse:if self.rect.left < SCREEN_WIDTH:self.rect.left += self.speedreturnself.live = False# 我方坦克子弹击中对方坦克def hit_enemy_tank(self):for enemy in TankGame.enemy_tank_list:hit = pygame.sprite.collide_rect(self, enemy)if hit:self.live = Falseif enemy.click_count == 1:enemy.live = Falsereturn Noneenemy.click_count -= 1if enemy.click_count == 2:enemy.load_image = enemy.img32if enemy.click_count == 1:enemy.load_image = enemy.img31load_music( hit )# 对方坦克子弹击中我方坦克def hit_my_tank(self, tank):hit = pygame.sprite.collide_rect(self, tank)if hit:self.live = Falsetank.live = False# 子弹击中围墙def bullet_collide_wall(self):for wall in TankGame.wall_list:result = pygame.sprite.collide_rect(self, wall)if result:self.live = Falseif wall.count == 1:wall.live = Falseelse:load_music( hit )# 子弹击中子弹def bullet_collide_bullet(self):for bullet in TankGame.enemy_bullet_list:if pygame.sprite.collide_rect(bullet, self):bullet.live = Falseself.live = False

5. 定义tank类

class Tank(BaseItem):# 参数初始化def __init__(self, left, top, window, image, direction, speed):super().__init__()self.window = windowself.load_image = imageself.direction = directionself.img = self.load_image[self.direction]self.rect = self.img.get_rect()self.rect.left = leftself.rect.top = topself.speed = speedself.tank_width = self.rect.widthself.tank_height = self.rect.heightself.wall_switch = Falseself.move_stop = Trueself.live = Trueself.old_left = 0self.old_top = 0# 开火def fire(self):return Bullet(self, self.window)# 显示def display(self):self.img = self.load_image[self.direction]self.window.blit(self.img, self.rect)def wall_not(self, direction):if direction == U:return self.rect.top > 0elif direction == D:return self.rect.top <= SCREEN_HEIGHT - self.tank_heightelif direction == L:return self.rect.left > 0else:return self.rect.left <= SCREEN_WIDTH - self.tank_widthdef wall_yes(self, direction):if direction == U:if self.rect.top < 0:self.rect.top = SCREEN_HEIGHTelif direction == D:self.rect.top %= SCREEN_HEIGHTelif direction == L:if self.rect.left < 0:self.rect.left = SCREEN_WIDTHelse:self.rect.left %= SCREEN_WIDTHdef move(self, direction):self.old_left = self.rect.leftself.old_top = self.rect.topif self.wall_switch:self.wall_yes(direction)elif not self.wall_not(direction):return Noneif direction == U:self.rect.top -= self.speedelif direction == D:self.rect.top += self.speedelif direction == L:self.rect.left -= self.speedelse:self.rect.left += self.speeddef stay(self):self.rect.left = self.old_leftself.rect.top = self.old_topdef tank_collide_wall(self):for wall in TankGame.wall_list:if pygame.sprite.collide_rect(self, wall):self.stay()def tank_collide_tank(self):for tank in TankGame.enemy_tank_list:if pygame.sprite.collide_rect(self, tank):self.stay()

6. 定义我方 & 对方tank类

class MyTank(Tank):def __init__(self, left, top, window):self.img = dict(U=load_img( p2tankU ), D=load_img( p2tankD ), L=load_img( p2tankL ), R=load_img( p2tankR ))self.my_tank_speed = 4super().__init__(left, top, window, self.img, U, self.my_tank_speed)class EnemyTank(Tank):def __init__(self, left, top, window):self.img1 = dict(U=load_img( enemy1U ), D=load_img( enemy1D ), L=load_img( enemy1L ), R=load_img( enemy1R ))self.img2 = dict(U=load_img( enemy2U ), D=load_img( enemy2D ), L=load_img( enemy2L ), R=load_img( enemy2R ))self.img3 = dict(U=load_img( enemy3U ), D=load_img( enemy3D ), L=load_img( enemy3L ), R=load_img( enemy3R ))self.img31 = dict(U=load_img( enemy3U_1 ), D=load_img( enemy3D_1 ), L=load_img( enemy3L_1 ),R=load_img( enemy3R_1 ))self.img32 = dict(U=load_img( enemy3U_2 ), D=load_img( enemy3D_2 ), L=load_img( enemy3L_2 ),R=load_img( enemy3R_2 ))# 不同的坦克击中的次数不一样image, self.click_count, speed = random.choice([(self.img1, 1, 4), (self.img3, 3, 3), (self.img2, 1, 5)])super().__init__(left, top, window, image, self.random_direction(), speed)self.step = 100@staticmethoddef random_direction():n = random.randint(0, 3)return DIRECTION[n]def random_move(self):if self.step == 0:self.direction = self.random_direction()self.step = random.randint(10, 100)else:self.move(self.direction)self.step -= 1def random_fire(self):if random.randint(0, 50) == 1 and len(TankGame.enemy_bullet_list) < 30:enemy_bullet = self.fire()TankGame.enemy_bullet_list.append(enemy_bullet)

7. 爆炸动作类

class Explode(BaseItem):def __init__(self, tank, window):super().__init__()self.img = [load_img( blast0 ), load_img( blast1 ), load_img( blast2 ), load_img( blast3 ), load_img( blast4 ),load_img( blast5 ), load_img( blast6 )]self.rect = tank.rectself.stop = 0self.window = windowself.rect.left = tank.rect.left - tank.rect.width / 2def display_explode(self):load_music( blast )while self.stop < len(self.img):self.window.blit(self.img[self.stop], self.rect)self.stop += 1

8. 定义wall类

class Wall(BaseItem):def __init__(self, left, top, window):super().__init__()self.count = random.randint(0, 1)self.img = [load_img( steels ), load_img( walls )][self.count]self.rect = self.img.get_rect()self.rect.left = leftself.rect.top = topself.window = windowself.live = Truedef display_wall(self):self.window.blit(self.img, self.rect)

9. 定义坦克大战类

class TankGame:my_bullet_list = list()enemy_bullet_list = list()enemy_tank_list = list()wall_list = list()def __init__(self):if not os.path.exists(Tank_IMAGE_POSITION):os.makedirs(Tank_IMAGE_POSITION)pygame.init()pygame.font.init()self.display = pygame.displayself.window = self.display.set_mode([SCREEN_WIDTH, SCREEN_HEIGHT], pygame.RESIZABLE, 32)self.display.set_caption( 坦克世界 )self.my_tank = MyTank(MY_BIRTH_LEFT, MY_BIRTH_TOP, self.window)self.creat_enemy_number = 10self.my_tank_lift = 3self.creat_enemy(self.creat_enemy_number)self.creat_walls()self.font = pygame.font.SysFont( kai_ti , 18)self.number = 1def creat_enemy(self, number):for _ in range(number):left = random.randint(0, SCREEN_WIDTH - self.my_tank.tank_width)enemy_tank = EnemyTank(left, 20, self.window)TankGame.enemy_tank_list.append(enemy_tank)def creat_walls(self):for i in range(SCREEN_WIDTH // 60 + 1):wall_h = random.randint(100, 500)w = Wall(60 * i, wall_h, self.window)TankGame.wall_list.append(w)@staticmethoddef show_walls():for w in TankGame.wall_list:if w.live:w.display_wall()else:TankGame.wall_list.remove(w)def start_game(self):load_music( start )while True:self.window.fill([0, 0, 0])self.get_event()len_enemy = len(TankGame.enemy_tank_list)self.window.blit(self.draw_text( 敌方坦克*{0},我方生命值*{1},当前{2}关 .format(len_enemy, self.my_tank_lift, self.number)), (10, 10))if len_enemy == 0:self.creat_enemy_number += 10self.number += 1self.my_tank_lift += 1self.creat_enemy(self.creat_enemy_number)self.wall_list.clear()self.creat_walls()self.show_my_tank()self.show_enemy_tank()self.show_bullet(TankGame.enemy_bullet_list)self.show_bullet(TankGame.my_bullet_list)self.show_walls()self.display.update()time.sleep(0.02)def show_my_tank(self):if self.my_tank.live:self.my_tank.display()self.my_tank.tank_collide_tank()self.my_tank.tank_collide_wall()else:Explode(self.my_tank, self.window).display_explode()del self.my_tankif self.my_tank_lift == 0:self.end_game()self.my_tank_lift -= 1load_music( add )self.my_tank = MyTank(MY_BIRTH_LEFT, MY_BIRTH_TOP, self.window)if not self.my_tank.move_stop:self.my_tank.move(self.my_tank.direction)def show_enemy_tank(self):for e in TankGame.enemy_tank_list:e.random_move()e.tank_collide_wall()if e.live:e.display()else:TankGame.enemy_tank_list.remove(e)Explode(e, self.window).display_explode()e.random_fire()def show_bullet(self, ls):for b in ls:b.bullet_move()b.bullet_collide_wall()if ls is TankGame.my_bullet_list:b.hit_enemy_tank()b.bullet_collide_bullet()else:b.hit_my_tank(self.my_tank)if b.live:b.display_bullet()else:ls.remove(b)def get_event(self):global SCREEN_WIDTH, SCREEN_HEIGHTevent_list = pygame.event.get()for event in event_list:if event.type == pygame.VIDEORESIZE:SCREEN_WIDTH, SCREEN_HEIGHT = event.sizeself.window = self.display.set_mode([SCREEN_WIDTH, SCREEN_HEIGHT], pygame.RESIZABLE, 32)if event.type == pygame.QUIT:self.end_game()if event.type == pygame.KEYDOWN:if event.key == pygame.K_w:self.my_tank.direction = Uelif event.key == pygame.K_s:self.my_tank.direction = Delif event.key == pygame.K_a:self.my_tank.direction = Lelif event.key == pygame.K_d:self.my_tank.direction = Relse:return Noneself.my_tank.move_stop = Falseelif event.type == pygame.MOUSEBUTTONDOWN:if len(TankGame.my_bullet_list) < 3:bullet = self.my_tank.fire()load_music( fire )TankGame.my_bullet_list.append(bullet)elif event.type == pygame.KEYUP:self.my_tank.move_stop = Truedef end_game(self):self.display.quit()sys.exit()def draw_text(self, content):text_sf = self.font.render(content, True, [255, 0, 0])return text_sf

10. 入口

if __name__ ==  __main__ :g = TankGame()g.start_game()

执行界面

源代码获取连接：https://github.com/ml365/some-code/blob/master/tanke.py