1.引入需要的模块，配置图片路径，设置界面宽高背景颜色，创建游戏主入口。

#1引入需要的模块
import pygame
import random
#1配置图片地址
IMAGE_PATH = 'imgs/'
#1设置页面宽高
scrrr_width=800
scrrr_height =560
#1创建控制游戏结束的状态
GAMEOVER = False
#1主程序
class MainGame():#1加载游戏窗口def init_window(self):#1调用显示模块的初始化pygame.display.init()#1创建窗口MainGame.window = pygame.display.set_mode([scrrr_width,scrrr_height])  ##1开始游戏def start_game(self):#1初始化窗口self.init_window()#1只要游戏没结束，就一直循环while not GAMEOVER:#1渲染白色背景MainGame.window.fill((255, 255, 255))#1实时更新pygame.display.update()
#1启动主程序
if __name__ == '__main__':game = MainGame()game.start_game()

2.文本绘制，创建要动态改变的属性，渲染的位置

#2 创建关数，得分，剩余分数，钱数
shaoguan = 1
score = 0
remnant_score = 100
money = 200
#2 文本绘制
def draw_text(self, content, size, color):pygame.font.init()font = pygame.font.SysFont('kaiti', size)text = font.render(content, True, color)return text#2 加载帮助提示
def load_help_text(self):text1 = self.draw_text('1.按左键创建向日葵 2.按右键创建豌豆射手', 26, (255, 0, 0))MainGame.window.blit(text1, (5, 5))#2 渲染的文字和坐标位置MainGame.window.blit(self.draw_text('当前钱数$: {}'.format(MainGame.money), 26, (255, 0, 0)), (500, 40))MainGame.window.blit(self.draw_text('当前关数{}，得分{},距离下关还差{}分'.format(MainGame.shaoguan, MainGame.score, MainGame.remnant_score), 26,(255, 0, 0)), (5, 40))self.load_help_text()

3.创建地图类，初始化地图和坐标

#3 创建地图类
class Map():#3 存储两张不同颜色的图片名称map_names_list = [IMAGE_PATH + 'map1.png', IMAGE_PATH + 'map2.png']#3 初始化地图def __init__(self, x, y, img_index):self.image = pygame.image.load(Map.map_names_list[img_index])self.position = (x, y)# 是否能够种植self.can_grow = True#3 加载地图def load_map(self):MainGame.window.blit(self.image,self.position)#3 存储所有地图坐标点map_points_list = []#3 存储所有的地图块map_list = []#3 初始化坐标点def init_plant_points(self):for y in range(1, 7):points = []for x in range(10):point = (x, y)points.append(point)MainGame.map_points_list.append(points)print("MainGame.map_points_list", MainGame.map_points_list)#3 初始化地图def init_map(self):for points in MainGame.map_points_list:temp_map_list = list()for point in points:# map = Noneif (point[0] + point[1]) % 2 == 0:map = Map(point[0] * 80, point[1] * 80, 0)else:map = Map(point[0] * 80, point[1] * 80, 1)# 将地图块加入到窗口中temp_map_list.append(map)print("temp_map_list", temp_map_list)MainGame.map_list.append(temp_map_list)print("MainGame.map_list", MainGame.map_list)#3 将地图加载到窗口中def load_map(self):for temp_map_list in MainGame.map_list:for map in temp_map_list:map.load_map()#3 初始化坐标和地图self.init_plant_points()self.init_map()#3 需要反复加载地图self.load_map()

4.创建植物类，图片加载报错处理，加载植物方法

#4 图片加载报错处理
LOG = '文件:{}中的方法:{}出错'.format(__file__,__name__)
#4 植物类
class Plant(pygame.sprite.Sprite):def __init__(self):super(Plant, self).__init__()self.live=True# 加载图片def load_image(self):if hasattr(self, 'image') and hasattr(self, 'rect'):MainGame.window.blit(self.image, self.rect)else:print(LOG)#4 存储所有植物的列表
plants_list = []

5.创建向日葵类

#5 向日葵类
class Sunflower(Plant):def __init__(self,x,y):super(Sunflower, self).__init__()self.image = pygame.image.load('imgs/sunflower.png')self.rect = self.image.get_rect()self.rect.x = xself.rect.y = yself.price = 50self.hp = 100#5 时间计数器self.time_count = 0#5 功能：生成阳光（生产钱）def produce_money(self):self.time_count += 1if self.time_count == 25:MainGame.money += 5self.time_count = 0#5 向日葵加入到窗口中def display_sunflower(self):MainGame.window.blit(self.image,self.rect)

6.创建豌豆射手类

#6 豌豆射手类
class PeaShooter(Plant):def __init__(self,x,y):super(PeaShooter, self).__init__()# self.image 为一个 surfaceself.image = pygame.image.load('imgs/peashooter.png')self.rect = self.image.get_rect()self.rect.x = xself.rect.y = yself.price = 50self.hp = 200#6 发射计数器self.shot_count = 0#6 增加射击方法def shot(self):#6 记录是否应该射击should_fire = Falsefor zombie in MainGame.zombie_list:if zombie.rect.y == self.rect.y and zombie.rect.x < 800 and zombie.rect.x > self.rect.x:should_fire = True#6 如果活着if self.live and should_fire:self.shot_count += 1# 计数器到25发射一次if self.shot_count == 25:#6 基于当前豌豆射手的位置，创建子弹peabullet = PeaBullet(self)#6 将子弹存储到子弹列表中MainGame.peabullet_list.append(peabullet)self.shot_count = 0#6 将豌豆射手加入到窗口中的方法def display_peashooter(self):MainGame.window.blit(self.image,self.rect)#6 增加豌豆射手发射处理def load_plants(self):for plant in MainGame.plants_list:#6 优化加载植物的处理逻辑if plant.live:if isinstance(plant, Sunflower):plant.display_sunflower()plant.produce_money()elif isinstance(plant, PeaShooter):plant.display_peashooter()plant.shot()else:MainGame.plants_list.remove(plant)#6 调用加载植物的方法self.load_plants()

7.创建子弹类

#7 豌豆子弹类
class PeaBullet(pygame.sprite.Sprite):def __init__(self,peashooter):self.live = Trueself.image = pygame.image.load('imgs/peabullet.png')self.damage = 50self.speed  = 10self.rect = self.image.get_rect()self.rect.x = peashooter.rect.x + 60self.rect.y = peashooter.rect.y + 15def move_bullet(self):#7 在屏幕范围内，实现往右移动if self.rect.x < scrrr_width:self.rect.x += self.speedelse:self.live = False#7 新增，子弹与僵尸的碰撞def hit_zombie(self):for zombie in MainGame.zombie_list:if pygame.sprite.collide_rect(self,zombie):#打中僵尸之后，修改子弹的状态，self.live = False#僵尸掉血zombie.hp -= self.damageif zombie.hp <= 0:zombie.live = Falseself.nextLevel()#7闯关方法def nextLevel(self):MainGame.score += 20MainGame.remnant_score -=20for i in range(1,100):if MainGame.score==100*i and MainGame.remnant_score==0:MainGame.remnant_score=100*iMainGame.shaoguan+=1MainGame.produce_zombie+=50def display_peabullet(self):MainGame.window.blit(self.image,self.rect)#7 存储所有豌豆子弹的列表peabullet_list = []#7 加载所有子弹的方法
def load_peabullets(self):for b in MainGame.peabullet_list:if b.live:b.display_peabullet()b.move_bullet()#7  调用子弹是否打中僵尸的方法b.hit_zombie()else:MainGame.peabullet_list.remove(b) #7 调用加载所有子弹的方法self.load_peabullets()

8.事件处理

#8事件处理def deal_events(self):#8 获取所有事件eventList = pygame.event.get()#8 遍历事件列表，判断for e in eventList:if e.type == pygame.QUIT:self.gameOver()elif e.type == pygame.MOUSEBUTTONDOWN:# print('按下鼠标按键')print(e.pos)# print(e.button)#左键1  按下滚轮2 上转滚轮为4 下转滚轮为5  右键 3x = e.pos[0] // 80y = e.pos[1] // 80print(x, y)map = MainGame.map_list[y - 1][x]print(map.position)#8 增加创建时候的地图装填判断以及金钱判断if e.button == 1:if map.can_grow and MainGame.money >= 50:sunflower = Sunflower(map.position[0], map.position[1])MainGame.plants_list.append(sunflower)print('当前植物列表长度:{}'.format(len(MainGame.plants_list)))map.can_grow = FalseMainGame.money -= 50elif e.button == 3:if map.can_grow and MainGame.money >= 50:peashooter = PeaShooter(map.position[0], map.position[1])MainGame.plants_list.append(peashooter)print('当前植物列表长度:{}'.format(len(MainGame.plants_list)))map.can_grow = FalseMainGame.money -= 50#8 调用事件处理的方法self.deal_events()

9.创建僵尸类

#9 僵尸类
class Zombie(pygame.sprite.Sprite):def __init__(self,x,y):super(Zombie, self).__init__()self.image = pygame.image.load('imgs/zombie.png')self.rect = self.image.get_rect()self.rect.x = xself.rect.y = yself.hp = 1000self.damage = 2self.speed = 1self.live = Trueself.stop = False#9 僵尸的移动def move_zombie(self):if self.live and not self.stop:self.rect.x -= self.speedif self.rect.x < -80:#8 调用游戏结束方法MainGame().gameOver()#9 判断僵尸是否碰撞到植物，如果碰撞，调用攻击植物的方法def hit_plant(self):for plant in MainGame.plants_list:if pygame.sprite.collide_rect(self,plant):#8  僵尸移动状态的修改self.stop = Trueself.eat_plant(plant)#9 僵尸攻击植物def eat_plant(self,plant):#9 植物生命值减少plant.hp -= self.damage#9 植物死亡后的状态修改，以及地图状态的修改if plant.hp <= 0:a = plant.rect.y // 80 - 1b = plant.rect.x // 80map = MainGame.map_list[a][b]map.can_grow = Trueplant.live = False#8 修改僵尸的移动状态self.stop = False#9 将僵尸加载到地图中def display_zombie(self):MainGame.window.blit(self.image,self.rect)#9 新增存储所有僵尸的列表zombie_list = []count_zombie = 0produce_zombie = 100     #9 新增初始化僵尸的方法def init_zombies(self):for i in range(1, 7):dis = random.randint(1, 5) * 200zombie = Zombie(800 + dis, i * 80)MainGame.zombie_list.append(zombie)#9将所有僵尸加载到地图中def load_zombies(self):for zombie in MainGame.zombie_list:if zombie.live:zombie.display_zombie()zombie.move_zombie()# v2.0 调用是否碰撞到植物的方法zombie.hit_plant()else:MainGame.zombie_list.remove(zombie)                 #9 调用初始化僵尸的方法self.init_zombies()#9 调用展示僵尸的方法self.load_zombies()#9 计数器增长，每数到100，调用初始化僵尸的方法MainGame.count_zombie += 1if MainGame.count_zombie == MainGame.produce_zombie:self.init_zombies()MainGame.count_zombie = 0#9 pygame自己的休眠pygame.time.wait(10)

10.游戏结束方法

#10 程序结束方法
def gameOver(self):MainGame.window.blit(self.draw_text('游戏结束', 50, (255, 0, 0)), (300, 200))pygame.time.wait(400)global GAMEOVERGAMEOVER = True