介绍
使用 Python 的 PyGame 做了一个弹球游戏，第一次使用Py做游戏，分享一下。
下载地址
下载链接：
http://101.201.112.95//PyGame_Pong.zip 复制到浏览器
执行 index.py 就可以运行游戏了
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PyGame开发游戏感觉上比H5、Unity等其他语言要反锁一点（可能刚接触不太习惯吧 _）
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分享下 HTML5 做的弹球游戏及完整源码
/fujian87232/article/details/115037280
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制作
这里简单总结下 PyGame 开发游戏时的一些基础知识点
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一、创建应用
1、首先，需要初始化下应用及显示窗口大小
pygame.init(); # 初始化pygamepygame.display.set_caption("Pong") # 设置标题
2、设置游戏窗口大小并创建
size = width, height = 800, 600; # 设置窗口大小scene = pygame.display.set_mode(size); # 创建显示窗口
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二、添加显示元素
1、添加图片，设置图片位置
ball = pygame.image.load(dirname + '/img/ball.jpg');ballRect = ball.get_rect();ballRect.centerx = 100; # 设置图片位置ballRect.centery = 200;scene.blit(ball, ballRect); # 将小球图片画到场景中上
2、添加文字显示
font = pygame.font.Font(None, 100); # 创建文字，定义大小leftScore = font.render("文字显示内容", 1, (255, 255, 255)); # 渲染并设置颜色leftScoreRect = leftScore.get_rect();leftScoreRect.centerx = 200; # 设置文字位置leftScoreRect.centery = 70; # 设置文字位置scene.blit(leftScore, leftScoreRect); # 将文字添加到显示窗口
3、绘制图形
这里画了40个小的线段
lineColor = (255, 255, 255); # 线段颜色for i in range(0, 40):start = (400, i * 15); # 线段开始位置end = (400, i * 15 + 10); # 线段结束位置pygame.draw.line(scene, lineColor, start, end, 4); # 绘制到窗口中
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三、动画
实现动画功能时，定义一个死循环，使用PyGame的时钟让循环按照一定时间间隔执行。
1、定义一个无限循环体
fpsClock = pygame.time.Clock(); # 获得pygame的时钟while True: # 死循环确保窗口一直显示# 这里实现动画效果fpsClock.tick(30); # 设置pygame时钟的间隔时间
2、实现图片移动动画
# 死循环确保窗口一直显示while True:# 小球移动ballRect.centerx += 1;ballRect.centery += 1;scene.blit(ball, ballRect); # 将小球图片重新画到窗口上pygame.display.update(); # 更新窗口显示fpsClock.tick(30); # 设置pygame时钟的间隔时间
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四、添加控制
PyGame的控制都是在动画循环中实现的
1、添加键盘事件
while True: # 死循环确保窗口一直显示for event in pygame.event.get(): # 遍历所有事件if event.type == pygame.KEYDOWN: # 键盘按下事件if event.key == pygame.K_UP: # 当按下的按键是向上箭头时if event.key == pygame.K_DOWN: # 当按下的按键是向下箭头时if event.type == pygame.KEYUP: # 键盘抬起事件if event.key == pygame.K_UP:if event.key == pygame.K_DOWN:fpsClock.tick(30); # 设置pygame时钟的间隔时间
2、添加窗口关闭按钮，退出程序
while True: # 死循环确保窗口一直显示if event.type == pygame.QUIT: # 如果单击关闭窗口，则退出sys.exit();fpsClock.tick(30); # 设置pygame时钟的间隔时间
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完整代码
import pygame;import sys;import os;import math;dirname, runFile = os.path.split(os.path.abspath(sys.argv[0]));pygame.init(); # 初始化pygamepygame.display.set_caption("Pong") # 设置标题size = width, height = 800, 600; # 设置窗口大小# 显示窗口scene = pygame.display.set_mode(size);bgColor = (0, 0, 0); # 设置颜色# 添加小球图片ball = pygame.image.load(dirname + '/img/ball.jpg');ballRect = ball.get_rect();# 添加左挡板图片leftBlock = pygame.image.load(dirname + '/img/block.jpg');leftBlockRect = leftBlock.get_rect();leftBlockRect.centerx = 40;leftBlockRect.centery = 300;# 添加右挡板图片rightBlock = pygame.image.load(dirname + '/img/block.jpg');rightBlockRect = rightBlock.get_rect();rightBlockRect.centerx = 760;rightBlockRect.centery = 300;#定义画中线函数def drawLine():lineColor = (255, 255, 255);for i in range(0, 40):start = (400, i * 15);end = (400, i * 15 + 10);pygame.draw.line(scene, lineColor, start, end, 4);# 得分leftScoreNum = 0;rightScoreNum = 0;# 左侧分数def leftScoreShow():font = pygame.font.Font(None, 100); # 创建字体对象leftScore = font.render(str(leftScoreNum), 1, (255, 255, 255)); # 文本与颜色leftScoreRect = leftScore.get_rect();leftScoreRect.centerx = 200;leftScoreRect.centery = 70;scene.blit(leftScore, leftScoreRect); # 将左侧得分画到场景中上# 右侧分数def rightScoreShow():font = pygame.font.Font(None, 100); # 创建字体对象rightScore = font.render(str(rightScoreNum), 1, (255, 255, 255)); # 文本与颜色rightScoreRect = rightScore.get_rect();rightScoreRect.centerx = 600;rightScoreRect.centery = 70;scene.blit(rightScore, rightScoreRect); # 将右侧得分画到场景中上# 得分def addScore(type):if type == 1 :global leftScoreNum;leftScoreNum = leftScoreNum + 1;else :global rightScoreNum;rightScoreNum = rightScoreNum + 1;# 重置小球def resetBall(type):global ballRect;global ballSpeedAngle;ballRect.centerx = 400;ballRect.centery = 300;if type == 1 :ballSpeedAngle = 0;else :ballSpeedAngle = math.pi;# 挡板与球的碰撞isLeftBlockCrash = False;isRightBlockCrash = False;def blockCrash(speedX):global isLeftBlockCrash;global isRightBlockCrash;global ballSpeedAngle;if (ballRect.centerx < leftBlockRect.centerx + leftBlockRect.width / 2 and ballRect.centerx > leftBlockRect.centerx - leftBlockRect.width / 2) and (ballRect.centery < leftBlockRect.centery + leftBlockRect.height / 2 and ballRect.centery > leftBlockRect.centery - leftBlockRect.height / 2) :if isLeftBlockCrash == False :if speedX > 0 :ballSpeedAngle = -(ballSpeedAngle - math.pi);else :#回弹角度增益ballSpeedAngle = (ballRect.centery - leftBlockRect.centery)/50;isLeftBlockCrash = True;else :isLeftBlockCrash = False;if (ballRect.centerx < rightBlockRect.centerx + rightBlockRect.width / 2 and ballRect.centerx > rightBlockRect.centerx - rightBlockRect.width / 2) and (ballRect.centery < rightBlockRect.centery + rightBlockRect.height / 2 and ballRect.centery > rightBlockRect.centery - rightBlockRect.height / 2) :if isRightBlockCrash == False :if speedX > 0 :ballSpeedAngle = -(ballSpeedAngle - math.pi);else :#回弹角度增益ballSpeedAngle = (ballRect.centery - rightBlockRect.centery)/50;isRightBlockCrash = True;else :isRightBlockCrash = False;# 获得pygame的时钟fpsClock = pygame.time.Clock();#定义小球移动速度ballSpeed = 15;#定义小球移动方向ballSpeedAngle = 1/4 * math.pi;#定义横杆移动速度leftMoveSpeed = 0;rightMoveSpeed = 0;# 死循环确保窗口一直显示while True:# 计算小球移动速度speedX = math.cos(ballSpeedAngle) * ballSpeed;speedY = math.sin(ballSpeedAngle) * ballSpeed;# 小球移动ballRect.centerx += speedX;ballRect.centery += speedY;# 左横杆移动leftBlockRect.centery += leftMoveSpeed;if(leftBlockRect.centery < 50):leftBlockRect.centery = 50;if(leftBlockRect.centery > 550):leftBlockRect.centery = 550;# 右横杆移动rightBlockRect.centery += rightMoveSpeed;if(rightBlockRect.centery < 50):rightBlockRect.centery = 50;if(rightBlockRect.centery > 550):rightBlockRect.centery = 550;# 碰撞上下边界if(ballRect.centery > 600):ballSpeedAngle = -ballSpeedAngle;if(ballRect.centery < 0):ballSpeedAngle = -ballSpeedAngle;if(ballRect.centerx > 800):ballSpeedAngle = -(ballSpeedAngle - math.pi);addScore(1); # 左边得分resetBall(1); # 重置小球并先向右发射if(ballRect.centerx < 0):ballSpeedAngle = -(ballSpeedAngle - math.pi);addScore(0); # 右边得分resetBall(0); # 重置小球并先向左发射for event in pygame.event.get(): # 遍历所有事件if event.type == pygame.QUIT: # 如果单击关闭窗口，则退出sys.exit();if event.type == pygame.KEYDOWN:if event.key == pygame.K_UP:rightMoveSpeed = -8;if event.key == pygame.K_DOWN:rightMoveSpeed = 8;if event.key == pygame.K_w:leftMoveSpeed = -8;if event.key == pygame.K_s:leftMoveSpeed = 8;if event.type == pygame.KEYUP:if event.key == pygame.K_UP:rightMoveSpeed = 0;if event.key == pygame.K_DOWN:rightMoveSpeed = 0;if event.key == pygame.K_w:leftMoveSpeed = 0;if event.key == pygame.K_s:leftMoveSpeed = 0;scene.fill(bgColor); # 填充黑色背景scene.blit(ball, ballRect); # 将小球图片画到场景中上scene.blit(leftBlock, leftBlockRect); # 将左侧挡板图片画到场景中上scene.blit(rightBlock, rightBlockRect); # 将右侧挡板图片画到场景中上drawLine(); # 画中心虚线leftScoreShow(); # 左侧分数显示rightScoreShow(); # 右侧分数显示blockCrash(speedX); # 碰撞检测pygame.display.update(); # 更新全部显示fpsClock.tick(30); # 设置pygame时钟的间隔时间
