学习 Python 之 Pygame 开发魂斗罗（十一）

继续编写魂斗罗
- 1. 改写主类函数中的代码顺序
- 2. 修改玩家初始化
- 3. 显示玩家生命值
- 4. 设置玩家碰到敌人死亡
- 5. 设置敌人子弹击中玩家
- 6. 修改updatePlayerPosition()函数逻辑

继续编写魂斗罗

在上次的博客学习 Python 之 Pygame 开发魂斗罗（十）中，我们实现了敌人死亡的爆炸效果，这次咱们实现一下玩家被敌人击中或者碰到敌人死亡的效果

下面是图片的素材

链接：https://pan.baidu.com/s/1X7tESkes_O6nbPxfpHD6hQ?pwd=hdly
提取码：hdly

1. 改写主类函数中的代码顺序

首先，我们改写一下update()函数中的代码顺序

def update(self, window, player1BulletList):# 加载背景window.blit(self.background, self.backRect)# 敌人更新enemyUpdate(MainGame.enemyList, MainGame.enemyBulletList)drawExplode(MainGame.explodeList)drawPlayerOneBullet(MainGame.player1BulletList)drawEnemyBullet(MainGame.enemyBulletList)# 更新人物currentTime = pygame.time.get_ticks()MainGame.allSprites.update(self.keys, currentTime, player1BulletList)self.updatePlayerPosition()updateEnemyPosition()# 摄像机移动self.camera()# 显示物体MainGame.allSprites.draw(window)# 加载敌人if -1503 < self.backRect.x < -1500:self.generateEnemy(MainGame.player1.rect.x + 600, POSITION_1, Direction.LEFT, pygame.time.get_ticks())self.generateEnemy(MainGame.player1.rect.x - 360, POSITION_1, Direction.RIGHT, pygame.time.get_ticks())if -1703 < self.backRect.x < -1700:self.generateEnemy(MainGame.player1.rect.x - 360, POSITION_1, Direction.RIGHT, pygame.time.get_ticks())self.generateEnemy(MainGame.player1.rect.x - 400, POSITION_1, Direction.RIGHT,pygame.time.get_ticks())for collider in MainGame.playerLandGroup:r = collider.draw(window, self.player1.rect.y)# 如果没有画出来，表示玩家高度低于直线，所有把直线从组中删除if not r:# 删除前先检查一下是不是在组中if collider in MainGame.playerColliderGroup:# 删除并加入栈MainGame.colliderStack.insert(0, collider)MainGame.playerColliderGroup.remove(collider)else:# 如果画出来了，判断一下玩家距离是否高于线的距离if collider.rect.y > self.player1.rect.bottom:# 如果是的话，且冲突栈不为空，那么从栈中取出一个元素放入冲突组，最前面的元素一定是先如队列的if len(MainGame.colliderStack) > 0:f = MainGame.colliderStack.pop()MainGame.playerColliderGroup.add(f)MainGame.playerRiverGroup.draw(window)

其次，把camera()函数中的下面框出的代码，提出来写成一个函数

def mapObjectMove(self):for sprite in MainGame.allSprites:sprite.rect.x -= self.cameraAdaptionfor collider in MainGame.playerColliderGroup:collider.rect.x -= self.cameraAdaptionfor collider in MainGame.colliderStack:collider.rect.x -= self.cameraAdaptionfor collider in MainGame.enemyColliderGroup:collider.rect.x -= self.cameraAdaption

最后，我们把加载背景图片的代码也单独写成一个函数

先找到加载背景图片代码的地方，在主类的构造函数里

把红框圈出的代码提出来，写成一个函数，并且调用

def initBackground(self):# 读取背景图片self.background = pygame.image.load('../Image/Map/1/Background/First(No Bridge).png')self.backRect = self.background.get_rect()self.background = pygame.transform.scale(self.background,(int(self.backRect.width * MAP_SCALE),int(self.backRect.height * MAP_SCALE)))self.backRect.x = -1280

把使用到的两个成员变量在构造函数中创建一下

好，现在运行一下游戏，看看有没有问题

运行后发现，一切正常

2. 修改玩家初始化

现在我们给玩家加入生命值，当玩家生命值为0时，游戏结束

首先，在玩家类中的构造函数里，增加一个参数

用来指定玩家初始的生命值

其次，在玩家类的构造函数中加入一个成员变量

之后，在主类中，加入一个全局函数，用来初始化玩家

def initPlayer1(life):if life == 0:passMainGame.allSprites.remove(MainGame.player1)MainGame.player1 = PlayerOne(pygame.time.get_ticks(), life)MainGame.player1.rect.x = 80MainGame.player1.rect.bottom = 0# 把角色放入组中，方便统一管理MainGame.allSprites.add(MainGame.player1)

这个函数的作用是：先把之前的玩家从组中删除，之后再创建一个新的玩家，新的玩家的生命值比上次的减少1，如果生命值为0，那么就游戏结束，现在先不着急写出游戏结束的函数

最后，把原来的玩家初始化代码改成调用这个函数

运行一下游戏，看看有没有问题

出现了问题

分析一下原因：第一次调用这个函数的时候，allSprites是None，如下图

我们把None改一下

这样就可以啦，再运行一下游戏，看看还有没有问题

这次就没有问题啦

3. 显示玩家生命值

在原版的魂斗罗中，玩家的生命值在左上角显示，我们来实现一下

首先，在构造函数中把生命值的图片加载进来

# 显示玩家生命值
self.lifeImage = loadImage('../Image/Player/Player1/Life/life.png')

在主类中加入成员函数

def drawLifeImage(self, window):# 如果玩家的生命值大于3，那么生命值图标就显示3个if MainGame.player1.life > 3:number = 3# 否则，有几个显示几个，肯定不超过三个else:number = MainGame.player1.liferect = self.lifeImage.get_rect()# 设置生命值图标的显示位置rect.y = 5for i in range(number):# 每个图标之间的距离为25像素rect.x = 5 + i * 20window.blit(self.lifeImage, rect)

之后我们调用一下这个函数，在update()中调用

好，现在运行一下游戏，看看效果

可以看到，左上角就显示玩家生命值啦

不过现在敌人的子弹击中我们，还有敌人碰到我们，我们都不会死亡，接下来我们来实现一下

4. 设置玩家碰到敌人死亡

我们找到主类中的updatePlayerPosition()函数，在其中加入下面这段代码

# 与敌人碰撞
if pygame.sprite.spritecollideany(MainGame.player1, MainGame.enemyGroup):MainGame.player1.life -= 1initPlayer1(MainGame.player1.life)

这段代码就是检测玩家和敌人是否发生碰撞，如果发生了，玩家生命值减少1，重新初始化玩家

def updatePlayerPosition(self):# 在index的循环次数中，不进行碰撞检测，用来让玩家向下跳跃if self.index > 0:self.index -= 1self.player1.rect.x += self.player1.xSpeedself.player1.rect.y += self.player1.ySpeedself.player1.isDown = Falseelse:# 首先更新y的位置self.player1.rect.y += self.player1.ySpeed# 玩家向下跳跃，35次循环内不进行碰撞检测if self.player1.state == State.JUMP and self.player1.isDown:self.index = 35# 玩家向上跳跃，15次循环内不进行碰撞检测elif self.player1.state == State.JUMP and self.player1.isUp:self.index = 15else:# 检测碰撞# 这里是玩家和所有碰撞组中的碰撞体检测碰撞，如果发生了碰撞，就会返回碰撞到的碰撞体对象collider = pygame.sprite.spritecollideany(self.player1, MainGame.playerColliderGroup)# 如果发生碰撞，判断是不是在河里if collider in MainGame.playerRiverGroup:# 在河里设置isInWaterself.player1.isInWater = True# 设置玩家在河里不能跳跃self.player1.isJumping = False# 默认落下去是站在河里的self.player1.isStanding = True# 玩家方向不能向下self.player1.isDown = False# 根据玩家方向，加载落入河中的一瞬间的图片if self.player1.direction == Direction.RIGHT:self.player1.image = self.player1.rightInWaterImageelse:self.player1.image = self.player1.leftInWaterImage# 判断是不是在陆地上elif collider in MainGame.playerLandGroup:self.player1.isInWater = False# 如果发生碰撞if collider:# 判断一下人物的y速度，如果大于0，则说明玩家已经接触到了碰撞体表面，需要让玩家站在表面，不掉下去if self.player1.ySpeed > 0:self.player1.ySpeed = 0self.player1.state = State.WALKself.player1.rect.bottom = collider.rect.topelse:# 否则的话，我们创建一个玩家的复制tempPlayer = copy.copy(self.player1)# 让玩家的纵坐标—+1，看看有没有发生碰撞tempPlayer.rect.y += 1# 如果没有发生碰撞，就说明玩家下面不是碰撞体，是空的if not pygame.sprite.spritecollideany(tempPlayer, MainGame.playerColliderGroup):# 如果此时不是跳跃状态，那么就让玩家变成下落状态，因为玩家在跳跃时，是向上跳跃，不需要对下面的物体进行碰撞检测if tempPlayer.state != State.JUMP:self.player1.state = State.FALLtempPlayer.rect.y -= 1# 与敌人碰撞if pygame.sprite.spritecollideany(MainGame.player1, MainGame.enemyGroup):MainGame.player1.life -= 1initPlayer1(MainGame.player1.life)# 更新x的位置self.player1.rect.x += self.player1.xSpeed# 同样的检查碰撞collider = pygame.sprite.spritecollideany(self.player1, MainGame.playerColliderGroup)# 如果发生了碰撞if collider:# 判断玩家的x方向速度，如果大于0，表示右边有碰撞体if self.player1.xSpeed > 0:# 设置玩家的右边等于碰撞体的左边self.player1.rect.right = collider.rect.leftelse:# 左边有碰撞体self.player1.rect.left = collider.rect.rightself.player1.xSpeed = 0tempPlayer = copy.copy(self.player1)tempPlayer.rect.y += 1if c := pygame.sprite.spritecollideany(tempPlayer, MainGame.playerColliderGroup):if c in MainGame.playerLandGroup:self.player1.isInWater = Falseelif c in MainGame.playerRiverGroup:self.player1.isInWater = TruetempPlayer.rect.y -= 1

好，现在运行一下游戏，看看效果

可以看到，玩家碰到敌人后就直接重新复活了，并且生命值减少了1

不过现在并没有实现敌人子弹击中玩家，玩家死亡，下面我们来实现

5. 设置敌人子弹击中玩家

首先，玩家死亡时，会有死亡的图片，我们要加入进去

修改Constants.py代码，加入爆炸种类

class ExplodeVariety(Enum):CIRCLE = 1BRIDGE = 2PLAYER1 = 3

其次，在爆炸类中根据爆炸种类加载不同的图片

图片素材我已经更新了，在网盘里就可以下载到

完整的爆炸效果类代码

class Explode:def __init__(self, object, variety = ExplodeVariety.CIRCLE, isUseTime = False):# 获取爆炸对象的位置self.rect = object.rectif variety == ExplodeVariety.CIRCLE:self.images = [loadImage('../Image/Explode/circleExplode1.png'),loadImage('../Image/Explode/circleExplode1.png'),loadImage('../Image/Explode/circleExplode1.png'),loadImage('../Image/Explode/circleExplode1.png'),loadImage('../Image/Explode/circleExplode2.png'),loadImage('../Image/Explode/circleExplode2.png'),loadImage('../Image/Explode/circleExplode2.png'),loadImage('../Image/Explode/circleExplode2.png'),loadImage('../Image/Explode/circleExplode3.png'),loadImage('../Image/Explode/circleExplode3.png'),loadImage('../Image/Explode/circleExplode3.png'),loadImage('../Image/Explode/circleExplode3.png'),]elif variety == ExplodeVariety.BRIDGE:self.images = [loadImage('../Image/Explode/bridgeExplode1.png'),loadImage('../Image/Explode/bridgeExplode2.png'),loadImage('../Image/Explode/bridgeExplode3.png'),]elif variety == ExplodeVariety.PLAYER1:self.images = [loadImage('../Image/Player/Player1/Death/death.png'),loadImage('../Image/Player/Player1/Death/death.png'),loadImage('../Image/Player/Player1/Death/death.png'),loadImage('../Image/Player/Player1/Death/death.png'),loadImage('../Image/Player/Player1/Death/death.png'),]self.index = 0self.image = self.images[self.index]self.isDestroy = Falseself.isUseTime = isUseTimeself.lastTime = Nonedef draw(self, window, currentTime = None):if self.isUseTime:if currentTime - self.lastTime > 115:# 根据索引获取爆炸对象, 添加到主窗口# 让图像加载五次，这里可以换成五张大小不一样的爆炸图片，可以实现让爆炸效果从小变大的效果if self.index < len(self.images):self.image = self.images[self.index]self.index += 1window.blit(self.image, self.rect)else:self.isDestroy = Trueself.index = 0self.lastTime = currentTimeelse:window.blit(self.image, self.rect)else:# 根据索引获取爆炸对象, 添加到主窗口# 让图像加载五次，这里可以换成五张大小不一样的爆炸图片，可以实现让爆炸效果从小变大的效果if self.index < len(self.images):self.image = self.images[self.index]self.index += 1window.blit(self.image, self.rect)else:self.isDestroy = Trueself.index = 0

最后，我们就可以在子弹类中加入代码，让子弹击中玩家时，玩家死亡

def collidePlayer(self, player, explodeList):# 函数的返回值用来表示是否要重新初始化玩家# 如果当前子弹和玩家发生碰撞if pygame.sprite.collide_rect(self, player):self.isDestroy = True# 玩家生命值减少1player.life -= 1# 加入玩家的死亡效果explodeList.append(Explode(player, ExplodeVariety.PLAYER1))# 返回Truereturn Truereturn False

函数的返回值用来表示是否要重新初始化玩家

接下来，在主类中调用这个函数，找到drawEnemyBullet()函数，在其中加入代码

之前敌人碰到玩家，玩家死亡，但是没有显示玩家死亡的图片，这里我们加入以下

来到updatePlayerPosition()函数，加入代码

好，下面我们运行一下，看看效果

可以看到子弹击中玩家后，玩家就出现死亡效果啦

但是目前玩家会无限复活，即使左上角的生命值没了，也会复活，这是因为玩家生命值归0后的代码我们并没有写，所以会出现这样的情况，后面我们再加上

6. 修改updatePlayerPosition()函数逻辑

接下来，我们把主类中的有些代码提出来，单独形成新的函数

来到updatePlayerPosition()函数，把下面框出的代码提出来，形成新的函数

def riverCollide(self):# 在河里设置isInWaterself.player1.isInWater = True# 设置玩家在河里不能跳跃self.player1.isJumping = False# 默认落下去是站在河里的self.player1.isStanding = True# 玩家方向不能向下self.player1.isDown = False# 根据玩家方向，加载落入河中的一瞬间的图片if self.player1.direction == Direction.RIGHT:self.player1.image = self.player1.rightInWaterImageelse:self.player1.image = self.player1.leftInWaterImage

原来的代码修改一下

运行一下游戏，看看有没有什么问题

并没有发现什么问题

完整的主类代码

import copy
import sys
import pygame
from Constants import *
from PlayerOne import PlayerOne
from Collider import Collider
from Enemy1 import Enemy1
from Explode import Explodedef drawPlayerOneBullet(player1BulletList):for bullet in player1BulletList:if bullet.isDestroy:player1BulletList.remove(bullet)else:bullet.draw(MainGame.window)bullet.move()bullet.collideEnemy(MainGame.enemyList, MainGame.explodeList)def enemyUpdate(enemyList, enemyBulletList):# 遍历整个敌人列表for enemy in enemyList:# 如果敌人已经被摧毁了if enemy.isDestroy:# 删除它的相关信息enemyList.remove(enemy)MainGame.allSprites.remove(enemy)MainGame.enemyGroup.remove(enemy)# 否则else:# 检查位置enemy.checkPosition(MainGame.player1.rect.x, MainGame.player1.rect.y)# 显示敌人enemy.draw(pygame.time.get_ticks())# 敌人移动enemy.move(pygame.time.get_ticks())# 敌人开火enemy.fire(enemyBulletList)def updateEnemyPosition():# 遍历全部敌人列表for enemy in MainGame.enemyList:# 创建一个复制t = copy.copy(enemy)t.rect.y += 1# 让复制的y加1，看看有没有发生碰撞，这里看的碰撞是enemyColliderGroup中的碰撞collide = pygame.sprite.spritecollideany(t, MainGame.enemyColliderGroup)# 没有发生碰撞，让敌人下落if not collide:enemy.rect.y += 4enemy.isFalling = True# 改变下落时的图片enemy.image = enemy.rightFallImage if enemy.direction == Direction.RIGHT else enemy.leftFallImageelse:enemy.isFalling = False# 如果与河发生碰撞，表示敌人落到了水中，那么敌人直接死亡if collide in MainGame.enemyRiverGroup:enemy.isDestroy = TrueMainGame.explodeList.append(Explode(enemy))t.rect.y -= 1def drawEnemyBullet(enemyBulletList):for bullet in enemyBulletList:if bullet.isDestroy:enemyBulletList.remove(bullet)else:bullet.draw(MainGame.window)bullet.move()if bullet.collidePlayer(MainGame.player1, MainGame.explodeList):initPlayer1(MainGame.player1.life)def initLand():land1 = Collider(81, 119 * MAP_SCALE, 737 * MAP_SCALE, LAND_THICKNESS * MAP_SCALE)land2 = Collider(400, 151 * MAP_SCALE, 96 * MAP_SCALE, LAND_THICKNESS * MAP_SCALE)land3 = Collider(640, 183 * MAP_SCALE, 33 * MAP_SCALE, LAND_THICKNESS * MAP_SCALE)land4 = Collider(880, 183 * MAP_SCALE, 33 * MAP_SCALE, LAND_THICKNESS * MAP_SCALE)land5 = Collider(720, 215 * MAP_SCALE, 2 * LAND_LENGTH * MAP_SCALE, LAND_THICKNESS * MAP_SCALE)land6 = Collider(1040, 154 * MAP_SCALE, 2 * LAND_LENGTH * MAP_SCALE, LAND_THICKNESS * MAP_SCALE)land7 = Collider(1600, 166 * MAP_SCALE, 3 * LAND_LENGTH * MAP_SCALE, LAND_THICKNESS * MAP_SCALE)land8 = Collider(1120 * RATIO, 215 * MAP_SCALE, 2 * LAND_LENGTH * MAP_SCALE, LAND_THICKNESS * MAP_SCALE)land9 = Collider(1650 * RATIO, 119 * MAP_SCALE, 5 * LAND_LENGTH * MAP_SCALE, LAND_THICKNESS * MAP_SCALE)land10 = Collider(2185 * RATIO, 119 * MAP_SCALE, 8 * LAND_LENGTH * MAP_SCALE, LAND_THICKNESS * MAP_SCALE)land11 = Collider(2595 * RATIO, 215 * MAP_SCALE, 3 * LAND_LENGTH * MAP_SCALE, LAND_THICKNESS * MAP_SCALE)land12 = Collider(2770 * RATIO, 167 * MAP_SCALE, 2 * LAND_LENGTH * MAP_SCALE, LAND_THICKNESS * MAP_SCALE)land13 = Collider(2535 * RATIO, 87 * MAP_SCALE, 16 * LAND_LENGTH * MAP_SCALE, LAND_THICKNESS * MAP_SCALE)land14 = Collider(2950 * RATIO, 151 * MAP_SCALE, 7 * LAND_LENGTH * MAP_SCALE, LAND_THICKNESS * MAP_SCALE)land15 = Collider(3185 * RATIO, 215 * MAP_SCALE, 6 * LAND_LENGTH * MAP_SCALE, LAND_THICKNESS * MAP_SCALE)MainGame.playerLandGroup = pygame.sprite.Group(land1, land2, land3, land4, land5, land6, land7, land8, land9, land10,land11, land12, land13, land14, land15)eland1 = Collider(81, 119 * MAP_SCALE, 737 * MAP_SCALE, LAND_THICKNESS * MAP_SCALE)eland9 = Collider(1650 * RATIO, 119 * MAP_SCALE, 5 * LAND_LENGTH * MAP_SCALE, LAND_THICKNESS * MAP_SCALE)MainGame.enemyLandGroup = pygame.sprite.Group(eland1, eland9)MainGame.playerColliderGroup.add(MainGame.playerLandGroup)MainGame.enemyColliderGroup.add(MainGame.enemyLandGroup)def initRiver():river1 = Collider(0, 215 * MAP_SCALE, 289 * MAP_SCALE, LAND_THICKNESS * MAP_SCALE, (0, 0, 255))river2 = Collider(880, 215 * MAP_SCALE, 255 * MAP_SCALE, LAND_THICKNESS * MAP_SCALE, (0, 0, 255))river3 = Collider(1680, 215 * MAP_SCALE, 737 * MAP_SCALE, LAND_THICKNESS * MAP_SCALE, (0, 0, 255))eRiver1 = Collider(0, 215 * MAP_SCALE, 289 * MAP_SCALE, LAND_THICKNESS * MAP_SCALE, (0, 0, 255))eRiver3 = Collider(1680, 215 * MAP_SCALE, 737 * MAP_SCALE, LAND_THICKNESS * MAP_SCALE, (0, 0, 255))MainGame.playerRiverGroup = pygame.sprite.Group(river1, river2, river3)MainGame.enemyRiverGroup = pygame.sprite.Group(eRiver1, eRiver3)MainGame.playerColliderGroup.add(MainGame.playerRiverGroup)MainGame.enemyColliderGroup.add(MainGame.enemyRiverGroup)def drawExplode(explodeList):for explode in explodeList:if explode.isDestroy:explodeList.remove(explode)else:if explode.isUseTime:explode.draw(MainGame.window, pygame.time.get_ticks())else:explode.draw(MainGame.window)def initPlayer1(life):if life == 0:passMainGame.allSprites.remove(MainGame.player1)MainGame.player1 = PlayerOne(pygame.time.get_ticks(), life)MainGame.player1.rect.x = 80MainGame.player1.rect.bottom = 0# 把角色放入组中，方便统一管理MainGame.allSprites.add(MainGame.player1)class MainGame:player1 = NoneallSprites = pygame.sprite.Group()# 敌人enemyList = []window = None# 子弹player1BulletList = []enemyBulletList = []# 爆炸效果explodeList = []# 冲突playerLandGroup = pygame.sprite.Group()playerRiverGroup = pygame.sprite.Group()enemyLandGroup = pygame.sprite.Group()enemyRiverGroup = pygame.sprite.Group()playerColliderGroup = pygame.sprite.Group()enemyColliderGroup = pygame.sprite.Group()enemyGroup = pygame.sprite.Group()bridgeGroup = pygame.sprite.Group()# 冲突栈colliderStack = []def __init__(self):# 设置成员变量self.background = Noneself.backRect = None# 初始化展示模块pygame.display.init()SCREEN_SIZE = (SCREEN_WIDTH, SCREEN_HEIGHT)# 初始化窗口MainGame.window = pygame.display.set_mode(SCREEN_SIZE)# 设置窗口标题pygame.display.set_caption('魂斗罗角色')# 是否结束游戏self.isEnd = False# 获取按键self.keys = pygame.key.get_pressed()# 帧率self.fps = 60self.clock = pygame.time.Clock()# 角色initPlayer1(3)# 加载背景self.initBackground()# 摄像头调整self.cameraAdaption = 0# 加载场景景物initLand()initRiver()# 碰撞失效间隔self.index = 0# 显示玩家生命值self.lifeImage = loadImage('../Image/Player/Player1/Life/life.png')def run(self):while not self.isEnd:# 设置背景颜色pygame.display.get_surface().fill((0, 0, 0))# 游戏场景和景物更新函数self.update(MainGame.window, MainGame.player1BulletList)# 获取窗口中的事件self.getPlayingModeEvent()# 更新窗口pygame.display.update()# 设置帧率self.clock.tick(self.fps)fps = self.clock.get_fps()caption = '魂斗罗 - {:.2f}'.format(fps)pygame.display.set_caption(caption)else:sys.exit()def getPlayingModeEvent(self):# 获取事件列表for event in pygame.event.get():# 点击窗口关闭按钮if event.type == pygame.QUIT:self.isEnd = True# 键盘按键按下elif event.type == pygame.KEYDOWN:self.keys = pygame.key.get_pressed()# 键盘按键抬起elif event.type == pygame.KEYUP:self.keys = pygame.key.get_pressed()def update(self, window, player1BulletList):# 加载背景window.blit(self.background, self.backRect)# 显示生命图标self.drawLifeImage(MainGame.window)# 敌人更新enemyUpdate(MainGame.enemyList, MainGame.enemyBulletList)drawExplode(MainGame.explodeList)drawPlayerOneBullet(MainGame.player1BulletList)drawEnemyBullet(MainGame.enemyBulletList)# 更新人物currentTime = pygame.time.get_ticks()MainGame.allSprites.update(self.keys, currentTime, player1BulletList)self.updatePlayerPosition()updateEnemyPosition()# 摄像机移动self.camera()# 显示物体MainGame.allSprites.draw(window)# 加载敌人if -1503 < self.backRect.x < -1500:self.generateEnemy(MainGame.player1.rect.x + 600, POSITION_1, Direction.LEFT, pygame.time.get_ticks())self.generateEnemy(MainGame.player1.rect.x - 360, POSITION_1, Direction.RIGHT, pygame.time.get_ticks())if -1703 < self.backRect.x < -1700:self.generateEnemy(MainGame.player1.rect.x - 360, POSITION_1, Direction.RIGHT, pygame.time.get_ticks())self.generateEnemy(MainGame.player1.rect.x - 400, POSITION_1, Direction.RIGHT,pygame.time.get_ticks())for collider in MainGame.playerLandGroup:r = collider.draw(window, self.player1.rect.y)# 如果没有画出来，表示玩家高度低于直线，所有把直线从组中删除if not r:# 删除前先检查一下是不是在组中if collider in MainGame.playerColliderGroup:# 删除并加入栈MainGame.colliderStack.insert(0, collider)MainGame.playerColliderGroup.remove(collider)else:# 如果画出来了，判断一下玩家距离是否高于线的距离if collider.rect.y > self.player1.rect.bottom:# 如果是的话，且冲突栈不为空，那么从栈中取出一个元素放入冲突组，最前面的元素一定是先如队列的if len(MainGame.colliderStack) > 0:f = MainGame.colliderStack.pop()MainGame.playerColliderGroup.add(f)MainGame.playerRiverGroup.draw(window)def camera(self):# 如果玩家的右边到达了屏幕的一半if self.player1.rect.right > SCREEN_WIDTH / 2:if not (self.backRect.x <= -3500 * MAP_SCALE):# 计算出超过的距离self.cameraAdaption = self.player1.rect.right - SCREEN_WIDTH / 2# 让背景向右走这么多距离self.backRect.x -= self.cameraAdaption# 场景中的物体都走这么多距离self.mapObjectMove()def mapObjectMove(self):for sprite in MainGame.allSprites:sprite.rect.x -= self.cameraAdaptionfor collider in MainGame.playerColliderGroup:collider.rect.x -= self.cameraAdaptionfor collider in MainGame.colliderStack:collider.rect.x -= self.cameraAdaptionfor collider in MainGame.enemyColliderGroup:collider.rect.x -= self.cameraAdaptiondef updatePlayerPosition(self):# 在index的循环次数中，不进行碰撞检测，用来让玩家向下跳跃if self.index > 0:self.index -= 1self.player1.rect.x += self.player1.xSpeedself.player1.rect.y += self.player1.ySpeedself.player1.isDown = Falseelse:# 首先更新y的位置self.player1.rect.y += self.player1.ySpeed# 玩家向下跳跃，35次循环内不进行碰撞检测if self.player1.state == State.JUMP and self.player1.isDown:self.index = 35# 玩家向上跳跃，15次循环内不进行碰撞检测elif self.player1.state == State.JUMP and self.player1.isUp:self.index = 15else:# 检测碰撞# 这里是玩家和所有碰撞组中的碰撞体检测碰撞，如果发生了碰撞，就会返回碰撞到的碰撞体对象collider = pygame.sprite.spritecollideany(self.player1, MainGame.playerColliderGroup)# 如果发生碰撞，判断是不是在河里if collider in MainGame.playerRiverGroup:self.riverCollide()# 判断是不是在陆地上elif collider in MainGame.playerLandGroup:self.player1.isInWater = False# 如果发生碰撞if collider:# 判断一下人物的y速度，如果大于0，则说明玩家已经接触到了碰撞体表面，需要让玩家站在表面，不掉下去if self.player1.ySpeed > 0:self.player1.ySpeed = 0self.player1.state = State.WALKself.player1.rect.bottom = collider.rect.topelse:# 否则的话，我们创建一个玩家的复制tempPlayer = copy.copy(self.player1)# 让玩家的纵坐标—+1，看看有没有发生碰撞tempPlayer.rect.y += 1# 如果没有发生碰撞，就说明玩家下面不是碰撞体，是空的if not pygame.sprite.spritecollideany(tempPlayer, MainGame.playerColliderGroup):# 如果此时不是跳跃状态，那么就让玩家变成下落状态，因为玩家在跳跃时，是向上跳跃，不需要对下面的物体进行碰撞检测if tempPlayer.state != State.JUMP:self.player1.state = State.FALLtempPlayer.rect.y -= 1# 与敌人碰撞if pygame.sprite.spritecollideany(MainGame.player1, MainGame.enemyGroup):MainGame.player1.life -= 1MainGame.explodeList.append(Explode(MainGame.player1, ExplodeVariety.PLAYER1))initPlayer1(MainGame.player1.life)# 更新x的位置self.player1.rect.x += self.player1.xSpeed# 同样的检查碰撞collider = pygame.sprite.spritecollideany(self.player1, MainGame.playerColliderGroup)# 如果发生了碰撞if collider:# 判断玩家的x方向速度，如果大于0，表示右边有碰撞体if self.player1.xSpeed > 0:# 设置玩家的右边等于碰撞体的左边self.player1.rect.right = collider.rect.leftelse:# 左边有碰撞体self.player1.rect.left = collider.rect.rightself.player1.xSpeed = 0tempPlayer = copy.copy(self.player1)tempPlayer.rect.y += 1if c := pygame.sprite.spritecollideany(tempPlayer, MainGame.playerColliderGroup):if c in MainGame.playerLandGroup:self.player1.isInWater = Falseelif c in MainGame.playerRiverGroup:self.player1.isInWater = TruetempPlayer.rect.y -= 1def riverCollide(self):# 在河里设置isInWaterself.player1.isInWater = True# 设置玩家在河里不能跳跃self.player1.isJumping = False# 默认落下去是站在河里的self.player1.isStanding = True# 玩家方向不能向下self.player1.isDown = False# 根据玩家方向，加载落入河中的一瞬间的图片if self.player1.direction == Direction.RIGHT:self.player1.image = self.player1.rightInWaterImageelse:self.player1.image = self.player1.leftInWaterImagedef generateEnemy(self, x, y, direction, currentTime):# 根据玩家的当前位置和方向产生一个敌人enemy = Enemy1(x, y, direction, currentTime)# 分别加入敌人列表，所有角色组，敌人碰撞组MainGame.enemyList.append(enemy)MainGame.allSprites.add(enemy)MainGame.enemyGroup.add(enemy)def initBackground(self):# 读取背景图片self.background = pygame.image.load('../Image/Map/1/Background/First(No Bridge).png')self.backRect = self.background.get_rect()self.background = pygame.transform.scale(self.background,(int(self.backRect.width * MAP_SCALE),int(self.backRect.height * MAP_SCALE)))self.backRect.x = -1280def drawLifeImage(self, window):# 如果玩家的生命值大于3，那么生命值图标就显示3个if MainGame.player1.life > 3:number = 3# 否则，有几个显示几个，肯定不超过三个else:number = MainGame.player1.liferect = self.lifeImage.get_rect()# 设置生命值图标的显示位置rect.y = 5for i in range(number):# 每个图标之间的距离为25像素rect.x = 5 + i * 20window.blit(self.lifeImage, rect)if __name__ == '__main__':MainGame().run()

完整的子弹类代码

import pygame
from Constants import *
from Explode import Explodeclass Bullet(pygame.sprite.Sprite):def __init__(self, person, isEnemy = False):pygame.sprite.Sprite.__init__(self)self.images = [loadImage('../Image/Bullet/bullet1.png')]self.index = 0self.image = self.images[self.index]# 速度self.xSpeed = 1self.ySpeed = 1self.rect = pygame.Rect(person.rect)if not isEnemy:if person.isInWater:self.waterPosition(person)else:self.landPosition(person)else:if person.direction == Direction.RIGHT:self.rect.x += 27 * PLAYER_SCALEself.rect.y += 7 * PLAYER_SCALEself.ySpeed = 0self.xSpeed = 7else:self.rect.x += -1 * PLAYER_SCALEself.rect.y += 7 * PLAYER_SCALEself.ySpeed = 0self.xSpeed = -7# 销毁开关self.isDestroy = Falsedef landPosition(self, person):if person.isStanding:if person.direction == Direction.RIGHT:if person.isUp:self.rect.x += 10 * PLAYER_SCALEself.rect.y += -1 * PLAYER_SCALEself.ySpeed = -7self.xSpeed = 0else:self.rect.x += 24 * PLAYER_SCALEself.rect.y += 11 * PLAYER_SCALEself.ySpeed = 0self.xSpeed = 7else:if person.isUp:self.rect.x += 10 * PLAYER_SCALEself.rect.y += -1 * PLAYER_SCALEself.ySpeed = -7self.xSpeed = 0else:self.rect.y += 11 * PLAYER_SCALEself.ySpeed = 0self.xSpeed = -7elif person.isSquating and not person.isWalking:if person.direction == Direction.RIGHT:self.rect.x += 34 * PLAYER_SCALEself.rect.y += 25 * PLAYER_SCALEself.ySpeed = 0self.xSpeed = 7else:self.rect.y += 25 * PLAYER_SCALEself.ySpeed = 0self.xSpeed = -7elif person.isWalking:if person.direction == Direction.RIGHT:if person.isUp:self.rect.x += 20 * PLAYER_SCALEself.rect.y += -1 * PLAYER_SCALEself.ySpeed = -7self.xSpeed = 7elif person.isDown:self.rect.x += 21 * PLAYER_SCALEself.rect.y += 20 * PLAYER_SCALEself.ySpeed = 7self.xSpeed = 7else:self.rect.x += 24 * PLAYER_SCALEself.rect.y += 11 * PLAYER_SCALEself.ySpeed = 0self.xSpeed = 7else:if person.isUp:self.rect.x += -3 * PLAYER_SCALEself.rect.y += -1 * PLAYER_SCALEself.ySpeed = -7self.xSpeed = -7elif person.isDown:self.rect.x += -3 * PLAYER_SCALEself.rect.y += 20 * PLAYER_SCALEself.ySpeed = 7self.xSpeed = -7else:self.rect.y += 11 * PLAYER_SCALEself.ySpeed = 0self.xSpeed = -7elif person.isJumping or person.state == State.FALL:if person.direction == Direction.RIGHT:self.rect.x += 16 * PLAYER_SCALEself.rect.y += 8 * PLAYER_SCALEself.ySpeed = 0self.xSpeed = 7else:self.rect.x += -2 * PLAYER_SCALEself.rect.y += 8 * PLAYER_SCALEself.ySpeed = 0self.xSpeed = -7def waterPosition(self, person):if person.isStanding:if person.direction == Direction.RIGHT:if person.isUp:self.rect.x += 14 * PLAYER_SCALEself.rect.y += 7 * PLAYER_SCALEself.ySpeed = -7self.xSpeed = 0else:self.rect.x += 27 * PLAYER_SCALEself.rect.y += 29 * PLAYER_SCALEself.ySpeed = 0self.xSpeed = 7else:if person.isUp:self.rect.x += 7 * PLAYER_SCALEself.rect.y += 3 * PLAYER_SCALEself.ySpeed = -7self.xSpeed = 0else:self.rect.x += -1 * PLAYER_SCALEself.rect.y += 29 * PLAYER_SCALEself.ySpeed = 0self.xSpeed = -7elif person.isWalking:if person.direction == Direction.RIGHT:if person.isUp:self.rect.x += 23 * PLAYER_SCALEself.rect.y += 17 * PLAYER_SCALEself.ySpeed = -7self.xSpeed = 7else:self.rect.x += 27 * PLAYER_SCALEself.rect.y += 29 * PLAYER_SCALEself.ySpeed = 0self.xSpeed = 7else:if person.isUp:self.rect.x += -3 * PLAYER_SCALEself.rect.y += -1 * PLAYER_SCALEself.ySpeed = -7self.xSpeed = -7else:self.rect.x += -1 * PLAYER_SCALEself.rect.y += 29 * PLAYER_SCALEself.ySpeed = 0self.xSpeed = -7def move(self):self.rect.x += self.xSpeedself.rect.y += self.ySpeedself.checkBullet()def draw(self, window):window.blit(self.image, self.rect)def checkBullet(self):toDestroy = Falseif self.rect.top < 0 or self.rect.top > 600:toDestroy = Trueif self.rect.left < 0 or self.rect.right > 900:toDestroy = Trueif toDestroy:self.isDestroy = Truedef collideEnemy(self, enemyList, explodeList):for enemy in enemyList:if pygame.sprite.collide_rect(self, enemy):self.isDestroy = Trueenemy.isDestroy = TrueexplodeList.append(Explode(enemy))def collidePlayer(self, player, explodeList):# 函数的返回值用来表示是否要重新初始化玩家# 如果当前子弹和玩家发生碰撞if pygame.sprite.collide_rect(self, player):self.isDestroy = True# 玩家生命值减少1player.life -= 1# 加入玩家的死亡效果explodeList.append(Explode(player, ExplodeVariety.PLAYER1))# 返回Truereturn Truereturn False

完整的玩家类代码

import pygame
from Constants import *
from Bullet import Bulletclass PlayerOne(pygame.sprite.Sprite):def __init__(self, currentTime, life):pygame.sprite.Sprite.__init__(self)# 加载角色图片self.standRightImage = loadImage('../Image/Player/Player1/Right/stand.png')self.standLeftImage = loadImage('../Image/Player/Player1/Left/stand.png')self.upRightImage = loadImage('../Image/Player/Player1/Up/upRight(small).png')self.upLeftImage = loadImage('../Image/Player/Player1/Up/upLeft(small).png')self.downRightImage = loadImage('../Image/Player/Player1/Down/down.png')self.downLeftImage = loadImage('../Image/Player/Player1/Down/down.png', True)self.obliqueUpRightImages = [loadImage('../Image/Player/Player1/Up/rightUp1.png'),loadImage('../Image/Player/Player1/Up/rightUp2.png'),loadImage('../Image/Player/Player1/Up/rightUp3.png'),]self.obliqueUpLeftImages = [loadImage('../Image/Player/Player1/Up/rightUp1.png', True),loadImage('../Image/Player/Player1/Up/rightUp2.png', True),loadImage('../Image/Player/Player1/Up/rightUp3.png', True),]self.obliqueDownRightImages = [loadImage('../Image/Player/Player1/ObliqueDown/1.png'),loadImage('../Image/Player/Player1/ObliqueDown/2.png'),loadImage('../Image/Player/Player1/ObliqueDown/3.png'),]self.obliqueDownLeftImages = [loadImage('../Image/Player/Player1/ObliqueDown/1.png', True),loadImage('../Image/Player/Player1/ObliqueDown/2.png', True),loadImage('../Image/Player/Player1/ObliqueDown/3.png', True),]# 角色向右的全部图片self.rightImages = [loadImage('../Image/Player/Player1/Right/run1.png'),loadImage('../Image/Player/Player1/Right/run2.png'),loadImage('../Image/Player/Player1/Right/run3.png')]# 角色向左的全部图片self.leftImages = [loadImage('../Image/Player/Player1/Left/run1.png'),loadImage('../Image/Player/Player1/Left/run2.png'),loadImage('../Image/Player/Player1/Left/run3.png')]# 角色跳跃的全部图片self.upRightImages = [loadImage('../Image/Player/Player1/Jump/jump1.png'),loadImage('../Image/Player/Player1/Jump/jump2.png'),loadImage('../Image/Player/Player1/Jump/jump3.png'),loadImage('../Image/Player/Player1/Jump/jump4.png'),]self.upLeftImages = [loadImage('../Image/Player/Player1/Jump/jump1.png', True),loadImage('../Image/Player/Player1/Jump/jump2.png', True),loadImage('../Image/Player/Player1/Jump/jump3.png', True),loadImage('../Image/Player/Player1/Jump/jump4.png', True),]self.rightFireImages = [loadImage('../Image/Player/Player1/Right/fire1.png'),loadImage('../Image/Player/Player1/Right/fire2.png'),loadImage('../Image/Player/Player1/Right/fire3.png'),]self.leftFireImages = [loadImage('../Image/Player/Player1/Right/fire1.png', True),loadImage('../Image/Player/Player1/Right/fire2.png', True),loadImage('../Image/Player/Player1/Right/fire3.png', True),]# 加载玩家在水中的图片self.upRightImageInWater = loadImage('../Image/Player/Player1/Water/up.png')self.upLeftImageInWater = loadImage('../Image/Player/Player1/Water/up.png', True)self.diveRightImageInWater = loadImage('../Image/Player/Player1/Water/dive.png')self.diveLeftImageInWater = loadImage('../Image/Player/Player1/Water/dive.png', True)self.standRightImageInWater = loadImage('../Image/Player/Player1/Water/stand.png')self.standLeftImageInWater = loadImage('../Image/Player/Player1/Water/stand.png', True)self.fireRightInWater = loadImage('../Image/Player/Player1/Water/standFire.png')self.fireLeftInWater = loadImage('../Image/Player/Player1/Water/standFire.png', True)self.obliqueRightInWater = loadImage('../Image/Player/Player1/Water/obliqueRight.png')self.obliqueLeftInWater = loadImage('../Image/Player/Player1/Water/obliqueRight.png', True)self.rightInWaterImage = loadImage('../Image/Player/Player1/Water/inWater.png')self.leftInWaterImage = loadImage('../Image/Player/Player1/Water/inWater.png', True)# 角色左右移动下标self.imageIndex = 0# 角色跳跃下标self.upImageIndex = 0# 角色斜射下标self.obliqueImageIndex = 0# 上一次显示图片的时间self.runLastTimer = currentTimeself.fireLastTimer = currentTime# 选择当前要显示的图片self.image = self.standRightImage# 获取图片的rectself.rect = self.image.get_rect()# 设置角色的状态self.state = State.FALL# 角色的方向self.direction = Direction.RIGHT# 速度self.xSpeed = PLAYER_X_SPEEDself.ySpeed = 0self.jumpSpeed = -11# 人物当前的状态标志self.isStanding = Falseself.isWalking = Falseself.isJumping = Trueself.isSquating = Falseself.isFiring = Falseself.isInWater = False# 重力加速度self.gravity = 0.8# 玩家上下方向self.isUp = Falseself.isDown = Falseself.life = lifedef update(self, keys, currentTime, playerBulletList):# 更新站或者走的状态# 根据状态响应按键if self.state == State.STAND:self.standing(keys, currentTime, playerBulletList)elif self.state == State.WALK:self.walking(keys, currentTime, playerBulletList)elif self.state == State.JUMP:self.jumping(keys, currentTime, playerBulletList)elif self.state == State.FALL:self.falling(keys, currentTime, playerBulletList)# 更新动画if self.isInWater:self.waterUpdate()else:self.landUpdate()def landUpdate(self):# 跳跃状态if self.isJumping:# 根据方向if self.direction == Direction.RIGHT:# 方向向右，角色加载向右跳起的图片self.image = self.upRightImages[self.upImageIndex]else:# 否则，方向向左，角色加载向左跳起的图片self.image = self.upLeftImages[self.upImageIndex]# 角色蹲下if self.isSquating:if self.direction == Direction.RIGHT:# 加载向右蹲下的图片self.image = self.downRightImageelse:# 加载向左蹲下的图片self.image = self.downLeftImage# 角色站着if self.isStanding:if self.direction == Direction.RIGHT:if self.isUp:# 加载向右朝上的图片self.image = self.upRightImageelif self.isDown:# 加载向右蹲下的图片self.image = self.downRightImageelse:# 加载向右站着的图片self.image = self.standRightImageelse:# 向左也是同样的效果if self.isUp:self.image = self.upLeftImageelif self.isDown:self.image = self.downLeftImageelse:self.image = self.standLeftImage# 角色移动if self.isWalking:if self.direction == Direction.RIGHT:if self.isUp:# 加载斜右上的图片self.image = self.obliqueUpRightImages[self.obliqueImageIndex]elif self.isDown:# 加载斜右下的图片self.image = self.obliqueDownRightImages[self.obliqueImageIndex]else:# 加载向右移动的图片，根据开火状态是否加载向右开火移动的图片if self.isFiring:self.image = self.rightFireImages[self.imageIndex]else:self.image = self.rightImages[self.imageIndex]else:if self.isUp:self.image = self.obliqueUpLeftImages[self.obliqueImageIndex]elif self.isDown:self.image = self.obliqueDownLeftImages[self.obliqueImageIndex]else:if self.isFiring:self.image = self.leftFireImages[self.imageIndex]else:self.image = self.leftImages[self.imageIndex]def waterUpdate(self):if self.isSquating:if self.direction == Direction.RIGHT:self.image = self.diveRightImageInWaterelse:self.image = self.diveLeftImageInWaterif self.isStanding:if self.direction == Direction.RIGHT:if self.isFiring:if self.isUp:self.image = self.upRightImageInWaterelse:self.image = self.fireRightInWaterelse:if self.isUp:self.image = self.upRightImageInWaterelse:self.image = self.standRightImageInWaterelse:if self.isFiring:if self.isUp:self.image = self.upLeftImageInWaterelse:self.image = self.fireLeftInWaterelse:if self.isUp:self.image = self.upLeftImageInWaterelse:self.image = self.standLeftImageInWaterif self.isWalking:if self.direction == Direction.RIGHT:if self.isUp:self.image = self.obliqueRightInWaterelse:if self.isFiring:self.image = self.fireRightInWaterelse:self.image = self.standRightImageInWaterelse:if self.isUp:self.image = self.obliqueLeftInWaterelse:if self.isFiring:self.image = self.fireLeftInWaterelse:self.image = self.standLeftImageInWaterdef standing(self, keys, currentTime, playerBulletList):"""角色站立"""# 设置角色状态self.isStanding = Trueself.isWalking = Falseself.isJumping = Falseself.isSquating = Falseself.isUp = Falseself.isDown = Falseself.isFiring = False# 设置速度self.ySpeed = 0self.xSpeed = 0# 按下A键if keys[pygame.K_a]:# A按下，角色方向向左self.direction = Direction.LEFT# 改变角色的状态，角色进入移动状态self.state = State.WALK# 设置站立状态为False，移动状态为Trueself.isStanding = Falseself.isWalking = True# 向左移动，速度为负数，这样玩家的x坐标是减小的self.xSpeed = -PLAYER_X_SPEED# 按下D键elif keys[pygame.K_d]:# D按下，角色方向向右self.direction = Direction.RIGHT# 改变角色的状态，角色进入移动状态self.state = State.WALK# 设置站立状态为False，移动状态为Trueself.isStanding = Falseself.isWalking = True# 向右移动，速度为正数self.xSpeed = PLAYER_X_SPEED# 按下k键elif keys[pygame.K_k]:if not self.isInWater:# K按下，角色进入跳跃状态，但是不会改变方向self.state = State.JUMP# 设置站立状态为False，跳跃状态为True# 不改变移动状态，因为移动的时候也可以跳跃self.isStanding = Falseself.isJumping = True# 设置速度，速度为负数，因为角色跳起后，要下落self.isUp = Trueself.ySpeed = self.jumpSpeed# 没有按下按键else:# 没有按下按键，角色依然是站立状态self.state = State.STANDself.isStanding = True# 按下w键if keys[pygame.K_w]:# W按下，角色向上，改变方向状态self.isUp = Trueself.isStanding = Trueself.isDown = Falseself.isSquating = False# 按下s键elif keys[pygame.K_s]:# S按下，角色蹲下，改变方向状态，并且蹲下状态设置为Trueself.isUp = Falseself.isStanding = Falseself.isDown = Trueself.isSquating = Trueif keys[pygame.K_j]:self.fire(currentTime, playerBulletList)def walking(self, keys, currentTime, playerBulletList):"""角色行走，每10帧变换一次图片"""self.isStanding = Falseself.isWalking = Trueself.isJumping = Falseself.isSquating = Falseself.isFiring = Falseself.ySpeed = 0self.xSpeed = PLAYER_X_SPEEDif self.isInWater:self.walkingInWater(currentTime)else:self.walkingInLand(currentTime)# 按下D键if keys[pygame.K_d]:self.direction = Direction.RIGHTself.xSpeed = PLAYER_X_SPEED# 按下A键elif keys[pygame.K_a]:self.direction = Direction.LEFTself.xSpeed = -PLAYER_X_SPEED# 按下S键elif keys[pygame.K_s]:self.isStanding = Falseself.isDown = Trueself.isUp = False# 按下W键if keys[pygame.K_w]:self.isUp = Trueself.isDown = False# 没有按键按下else:self.state = State.STAND# 移动时按下K键if keys[pygame.K_k]:# 角色状态变为跳跃if not self.isInWater:self.state = State.JUMPself.ySpeed = self.jumpSpeedself.isJumping = Trueself.isStanding = Falseself.isUp = Trueif keys[pygame.K_j]:self.fire(currentTime, playerBulletList)def walkingInLand(self, currentTime):# 如果当前是站立的图片if self.isStanding:# 方向向右，方向向上if self.direction == Direction.RIGHT and self.isUp:# 设置为向右朝上的图片self.image = self.upRightImage# 方向向右elif self.direction == Direction.RIGHT and not self.isUp:# 设置为向右站立的图片self.image = self.standRightImageelif self.direction == Direction.LEFT and self.isUp:self.image = self.upLeftImageelif self.direction == Direction.LEFT and not self.isUp:self.image = self.standLeftImage# 记下当前时间self.runLastTimer = currentTimeelse:# 如果是走动的图片，先判断方向if self.direction == Direction.RIGHT:# 设置速度self.xSpeed = PLAYER_X_SPEED# 根据上下方向觉得是否角色要加载斜射的图片if self.isUp or self.isDown:# isUp == True表示向上斜射# isDown == True表示向下斜射# 计算上一次加载图片到这次的时间，如果大于115，即11.5帧，即上次加载图片到这次加载图片之间，已经加载了11张图片if currentTime - self.runLastTimer > 115:# 那么就可以加载斜着奔跑的图片# 如果角色加载的图片不是第三张，则加载下一张就行if self.obliqueImageIndex < 2:self.obliqueImageIndex += 1# 否则就加载第一张图片else:self.obliqueImageIndex = 0# 记录变换图片的时间，为下次变换图片做准备self.runLastTimer = currentTime# 不是斜射else:# 加载正常向右奔跑的图片if currentTime - self.runLastTimer > 115:if self.imageIndex < 2:self.imageIndex += 1else:self.imageIndex = 0self.runLastTimer = currentTimeelse:self.xSpeed = -PLAYER_X_SPEEDif self.isUp or self.isDown:if currentTime - self.runLastTimer > 115:if self.obliqueImageIndex < 2:self.obliqueImageIndex += 1else:self.obliqueImageIndex = 0self.runLastTimer = currentTimeelse:if currentTime - self.runLastTimer > 115:if self.imageIndex < 2:self.imageIndex += 1else:self.imageIndex = 0self.runLastTimer = currentTimedef walkingInWater(self, currentTime):if self.isStanding:# 设置为斜射if self.direction == Direction.RIGHT and self.isUp:self.image = self.upRightImageInWaterelif self.direction == Direction.RIGHT and not self.isUp:self.image = self.standRightImageInWaterelif self.direction == Direction.LEFT and self.isUp:self.image = self.upLeftImageInWaterelif self.direction == Direction.LEFT and not self.isUp:self.image = self.standLeftImageInWaterself.runLastTimer = currentTimeelse:# 如果是走动的图片if self.direction == Direction.RIGHT:self.xSpeed = PLAYER_X_SPEEDif self.isUp:self.image = self.obliqueRightInWaterself.runLastTimer = currentTimeelse:self.image = self.standRightImageInWaterself.runLastTimer = currentTimeelse:self.xSpeed = PLAYER_X_SPEEDif self.isUp:self.image = self.obliqueLeftInWaterself.runLastTimer = currentTimeelse:self.image = self.standLeftImageInWaterself.runLastTimer = currentTimedef jumping(self, keys, currentTime, playerBulletList):"""跳跃"""# 设置标志self.isJumping = Trueself.isStanding = Falseself.isDown = Falseself.isSquating = Falseself.isFiring = False# 更新速度self.ySpeed += self.gravityif currentTime - self.runLastTimer > 115:if self.upImageIndex < 3:self.upImageIndex += 1else:self.upImageIndex = 0# 记录变换图片的时间，为下次变换图片做准备self.runLastTimer = currentTimeif keys[pygame.K_d]:self.direction = Direction.RIGHTelif keys[pygame.K_a]:self.direction = Direction.LEFT# 按下W键if keys[pygame.K_w]:self.isUp = Trueself.isDown = Falseelif keys[pygame.K_s]:self.isUp = Falseself.isDown = Trueif self.ySpeed >= 0:self.state = State.FALLif not keys[pygame.K_k]:self.state = State.FALLif keys[pygame.K_j]:self.fire(currentTime, playerBulletList)def falling(self, keys, currentTime, playerBulletList):# 下落时速度越来越快，所以速度需要一直增加self.ySpeed += self.gravityif currentTime - self.runLastTimer > 115:if self.upImageIndex < 3:self.upImageIndex += 1else:self.upImageIndex = 0self.runLastTimer = currentTimeif keys[pygame.K_d]:self.direction = Direction.RIGHTself.isWalking = Falseelif keys[pygame.K_a]:self.direction = Direction.LEFTself.isWalking = Falseif keys[pygame.K_j]:self.fire(currentTime, playerBulletList)def fire(self, currentTime, playerBulletList):self.isFiring = True# 潜水状态下不能开火if not (self.isInWater and self.isSquating):if len(playerBulletList) < PLAYER_BULLET_NUMBER:if currentTime - self.fireLastTimer > 150:playerBulletList.append(Bullet(self))self.fireLastTimer = currentTime