pygame安装 pip install pygame

在CMD中输入python -m pygame.examples.aliens可以看到一个自带的pygame的演示小游戏

学了几天pygame，那就实践一下吧，如图实现玩家操控小鸟躲避小球的游戏，当碰撞到小球游戏结束，关闭游戏

所以我们需要实现以下几个功能：

1.操控小鸟

2.小球移动

3.碰撞检测

4.结束游戏

一. 控制小鸟我们用pygame.KEYDOWN来检测，当用户敲击下键盘上下左右时，改变鸟的位置坐标，并消除之前的图片

1 #键盘敲击事件

2 elif event.type ==pygame.KEYDOWN:3 #上

4 if event.key ==pygame.K_UP:5 if imageRect.top !=0:6 pygame.draw.rect(screen,THECOLORS['white'],imageRect)7 imageRect =imageRect.move(0,birdspeed[0])8 count = count + 1

9 #下

10 elif event.key ==pygame.K_DOWN:11 if imageRect.bottom != 360:12 pygame.draw.rect(screen, THECOLORS['white'], imageRect)13 imageRect = imageRect.move(0,birdspeed[1])14 count = count + 1

15 #左

16 elif event.key ==pygame.K_LEFT:17 if imageRect.left !=0:18 pygame.draw.rect(screen, THECOLORS['white'], imageRect)19 imageRect = imageRect.move(birdspeed[3],0)20 #右

21 elif event.key ==pygame.K_RIGHT:22 if imageRect.right != 540:23 pygame.draw.rect(screen, THECOLORS['white'], imageRect)24 imageRect = imageRect.move(birdspeed[2],0)25 #按ESC退出游戏

26 elif event.key ==pygame.K_ESCAPE:27 sys.exit()

二.我们先设置小球的初始位置，然后让小球从右向左移动，并用draw.rect画掉之前的图像，当小球到达屏幕最左端的时候，我们让它重新出现，并且修改纵坐标为鸟的同一行

1 replace_rect = pygame.draw.rect(screen, THECOLORS['white'], ballRect)2 #小球自右向左移动

3 if ballLocation[0] > -60:4 if count > 10 and count < 8:5 ballLocation[0] = ballLocation[0] + ballspeed[count//10]6 else:7 ballLocation[0] = ballLocation[0] +ballspeed[0]8 else:9 ballLocation[0] = 540

10 #小球移动到最左端时改变出现的位置

11 if ballLocation[0] == -60:12 ballLocation[1] =imageRect.top13 #纵坐标超出范围时修改

14 if ballLocation[1] > 359:15 ballLocation[1] = ballLocation_change[random.randint(1,6)]

三.碰撞检测和结束

我将鸟的图像创建一个Rect对象，相当于这个rect对象帮我获取的鸟这个图像的上下左右的坐标，这样我们就可以用来判断它的位置信息，这里我用ballLocation来存储球的位置

1 #碰撞检测的实现

2 if imageRect.bottom == ballLocation[1]+60 and imageRect.top == ballLocation[1] :3 if imageRect.left-ballLocation[0] < 60 and imageRect.left-ballLocation[0] >0 :4 #如果碰撞就结束游戏

5 print("Game Over")6 pygame.mixer.music.load(gameOver_musci)7 pygame.mixer.music.play()8 screen.blit(game_over_image,[0,0])9 pygame.display.update()10 pygame.time.delay(1500)11 sys.exit()

完整代码如下，注释还挺多的，图片和音乐资源网上自己都能找到，用自己喜欢的图片就行了，最好是透明的图片，如果和我一样图片不是透明的而是白色背景，就得加这个了不然就不用

将透明色设置为白色

control_image = pygame.image.load('资源/img/bird.png').convert()

control_image.convert_alpha()

control_image.set_colorkey(ALPHA)

1 #导入和常量设置

2 importpygame,sys3 from pygame.color importTHECOLORS4 importrandom5 size = wdith , height = 540 ,360#设置屏幕尺寸

6 birdspeed = [-60,60,60,-60]7 ballspeed = [-8,-9,-10,-11,-12,-13,-14,-15,-16]8 ballLocation = [540,60]9 ballLocation_change = [0,60,120,180,240,300,360]10 ALPHA = (255,255,255)#设置透明色11 fps = 120#屏幕刷新率

12 count = 1#用于统计操控次数来改变游戏难度

13 #初始化界面

14 pygame.init()15 fclock =pygame.time.Clock()16 screen =pygame.display.set_mode(size)17 pygame.display.set_caption('躲小球1.0')18 #音乐载入

19 music = '资源/music/letter.mp3'

20 gameOver_musci = '资源/music/gameover2.mp3'

21 pygame.mixer.music.load(music)22 pygame.mixer.music.play()23 #图片载入

24 imag = '资源/img/cat1.png'

25 imag =pygame.image.load(imag)26 pygame.display.set_icon(imag)27 #将透明色设置为白色

28 control_image = pygame.image.load('资源/img/bird.png').convert()29 control_image.convert_alpha()30 control_image.set_colorkey(ALPHA)31

32 game_over_image = pygame.image.load('资源/img/gameover.jpg')33 game_over_image = pygame.transform.scale(game_over_image,[540,360])#设置为指定大小的图片34 ball_image = pygame.image.load('资源/img/ball.png')35 background = pygame.image.load('资源/img/sky.png')36 background = pygame.transform.scale(background,[540,360])37 control_image = pygame.transform.scale(control_image,[60,60])#设定为指定大小的图片38 ball_image = pygame.transform.scale(ball_image,[60,60])39 ballRect =ball_image.get_rect()40 imageRect =control_image.get_rect()41 #背景色和贴图片

42 screen.fill(THECOLORS['white'])43 screen.blit(control_image,imageRect)44 screen.blit(ball_image,ballLocation)45 #事件循环响应队列

46 whileTrue:47 for event inpygame.event.get():48 if event.type ==pygame.QUIT:49 sys.exit()50 #键盘敲击事件

51 elif event.type ==pygame.KEYDOWN:52 #上

53 if event.key ==pygame.K_UP:54 if imageRect.top !=0:55 pygame.draw.rect(screen,THECOLORS['white'],imageRect)#将前一个图像覆盖掉56 imageRect =imageRect.move(0,birdspeed[0])57 count = count + 1

58 #下

59 elif event.key ==pygame.K_DOWN:60 if imageRect.bottom != 360:61 pygame.draw.rect(screen, THECOLORS['white'], imageRect)62 imageRect = imageRect.move(0,birdspeed[1])63 count = count + 1

64 #左

65 elif event.key ==pygame.K_LEFT:66 if imageRect.left !=0:67 pygame.draw.rect(screen, THECOLORS['white'], imageRect)68 imageRect = imageRect.move(birdspeed[3],0)69 #右

70 elif event.key ==pygame.K_RIGHT:71 if imageRect.right != 540:72 pygame.draw.rect(screen, THECOLORS['white'], imageRect)73 imageRect = imageRect.move(birdspeed[2],0)74 #按ESC退出游戏

75 elif event.key ==pygame.K_ESCAPE:76 sys.exit()77 #抹除操作前的图像

78 replace_rect = pygame.draw.rect(screen, THECOLORS['white'], ballRect)79 #小球自右向左移动

80 if ballLocation[0] > -60:81 if count > 10 and count < 8:82 ballLocation[0] = ballLocation[0] + ballspeed[count//10]83 else:84 ballLocation[0] = ballLocation[0] +ballspeed[0]85 else:86 ballLocation[0] = 540

87 #小球移动到最左端时改变出现的位置

88 if ballLocation[0] == -60:89 ballLocation[1] =imageRect.top90 #纵坐标超出范围时修改

91 if ballLocation[1] > 359:92 ballLocation[1] = ballLocation_change[random.randint(1,6)]93 #碰撞检测的实现

94 if imageRect.bottom == ballLocation[1]+60 and imageRect.top == ballLocation[1] :95 if imageRect.left-ballLocation[0] < 60 and imageRect.left-ballLocation[0] >0 :96 #如果碰撞就结束游戏

97 print("Game Over")98 pygame.mixer.music.load(gameOver_musci)99 pygame.mixer.music.play()100 screen.blit(game_over_image,[0,0])101 pygame.display.update()102 pygame.time.delay(1500)103 sys.exit()104 #背景

105 screen.blit(background,(0,0))106 #小球

107 screen.blit(ball_image,ballLocation)108 #控制对象

109 screen.blit(control_image,imageRect)110

111 pygame.display.update()#刷新112 fclock.tick(fps)