教你用Python写一个植物大战僵尸小游戏

import pygame
import random

IMAGE_PATH = 'imgs/'

scrrr_width = 800
scrrr_height = 560

GAMEOVER = False

LOG = '文件:{}中的方法:{}出错'.format(__file__, __name__)

class Map():

map_names_list = [IMAGE_PATH + 'map1.png', IMAGE_PATH + 'map2.png']

def __init__(self, x, y, img_index):
    self.image = pygame.image.load(Map.map_names_list[img_index])
    self.position = (x, y)

self.can_grow = True

def load_map(self):
    MainGame.window.blit(self.image, self.position)

class Plant(pygame.sprite.Sprite):
    def __init__(self):
        super(Plant, self).__init__()
        self.live = True

def load_image(self):
    if hasattr(self, 'image') and hasattr(self, 'rect'):
        MainGame.window.blit(self.image, self.rect)
    else:
        print(LOG)

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 = x
        self.rect.y = y
        self.price = 50
        self.hp = 100
        # 5 时间计数器
        self.time_count = 0

def produce_money(self):
    self.time_count += 1
    if self.time_count == 25:
        MainGame.money += 5
        self.time_count = 0

def display_sunflower(self):
    MainGame.window.blit(self.image, self.rect)

class PeaShooter(Plant):
    def __init__(self, x, y):
        super(PeaShooter, self).__init__()
        # self.image 为一个 surface
        self.image = pygame.image.load('imgs/peashooter.png')
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y
        self.price = 50
        self.hp = 200
        # 6 发射计数器
        self.shot_count = 0

def shot(self):
    # 6 记录是否应该射击
    should_fire = False
    for 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
        # 6 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

def display_peashooter(self):
    MainGame.window.blit(self.image, self.rect)

class PeaBullet(pygame.sprite.Sprite):
    def __init__(self, peashooter):
        self.live = True
        self.image = pygame.image.load('imgs/peabullet.png')
        self.damage = 50
        self.speed = 10
        self.rect = self.image.get_rect()
        self.rect.x = peashooter.rect.x + 60
        self.rect.y = peashooter.rect.y + 15

    def 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.speed
        else:
            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.damage
                if zombie.hp <= 0:
                    zombie.live = False
                    self.nextLevel()
    # 7闯关方法

    def nextLevel(self):
        MainGame.score += 20
        MainGame.remnant_score -= 20
        for i in range(1, 100):
            if MainGame.score == 100 * i and MainGame.remnant_score == 0:
                MainGame.remnant_score = 100 * i
                MainGame.shaoguan += 1
                MainGame.produce_zombie += 50

    def display_peabullet(self):
        MainGame.window.blit(self.image, self.rect)

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 = x
        self.rect.y = y
        self.hp = 1000
        self.damage = 2
        self.speed = 1
        self.live = True
        self.stop = False
    # 9 僵尸的移动

    def move_zombie(self):
        if self.live and not self.stop:
            self.rect.x -= self.speed
            if 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 = True
                self.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 - 1
            b = plant.rect.x // 80
            map = MainGame.map_list[a][b]
            map.can_grow = True
            plant.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)

class MainGame():
    # 2 创建关数，得分，剩余分数，钱数
    shaoguan = 1
    score = 0
    remnant_score = 100
    money = 200
    # 3 存储所有地图坐标点
    map_points_list = []
    # 3 存储所有的地图块
    map_list = []
    # 4 存储所有植物的列表
    plants_list = []
    # 7 存储所有豌豆子弹的列表
    peabullet_list = []
    # 9 新增存储所有僵尸的列表
    zombie_list = []
    count_zombie = 0
    produce_zombie = 100
    # 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])

    # 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))

    # 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 = None
                if (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()

    # 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)

    # 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()
                # v1.9 调用子弹是否打中僵尸的方法
                b.hit_zombie()
            else:
                MainGame.peabullet_list.remove(b)

    # 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 3

                x = e.pos[0] // 80
                y = e.pos[1] // 80
                print(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 = False
                        MainGame.money -= 50
                elif 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 = False
                        MainGame.money -= 50

    # 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) * 200
            zombie = 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)
    # 1 开始游戏

    def start_game(self):
        # 1 初始化窗口
        self.init_window()
        # 3 初始化坐标和地图
        self.init_plant_points()
        self.init_map()
        # 9 调用初始化僵尸的方法
        self.init_zombies()
        # 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))
            # 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 需要反复加载地图
            self.load_map()
            # 6 调用加载植物的方法
            self.load_plants()
            # 7  调用加载所有子弹的方法
            self.load_peabullets()
            # 8 调用事件处理的方法
            self.deal_events()
            # 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 += 1
            if MainGame.count_zombie == MainGame.produce_zombie:
                self.init_zombies()
                MainGame.count_zombie = 0
            pygame.time.wait(10)
            pygame.display.update()

    def gameOver(self):
        MainGame.window.blit(
            self.draw_text(
                '游戏结束', 50, (255, 0, 0)), (300, 200))
        print('游戏结束')
        pygame.time.wait(400)
        global GAMEOVER
        GAMEOVER = True


if __name__ == '__main__':
    game = MainGame()
    game.start_game()