pygame学习笔记——自己整理(后续更新~)

一、个人理解 

import sys, pygame
pygame.init()

size = width, height = 320, 200
speed = [2, 2]
black = 0, 0, 0

screen = pygame.display.set_mode(size)

pygame.display.set_caption('Hello World')

ball = pygame.image.load("intro_ball.gif")
ballrect = ball.get_rect()

while 1:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()

    ballrect = ballrect.move(speed)
    if ballrect.left < 0 or ballrect.right > width:
        speed[0] = -speed[0]
    if ballrect.top < 0 or ballrect.bottom > height:
        speed[1] = -speed[1]

    screen.fill(black)
    screen.blit(ball, ballrect)
    pygame.display.flip()

 

1.点击窗口的关闭按钮,会触发退出事件,if判断检测到,会出退出窗口。没有下面的代码,窗口关闭不了。

#遍历所有事件
  for event in pygame.event.get():
    if event.type == pygame.QUIT:
      pygame.quit()
      sys.exit()

事件都是使用队列存储的。

2.display这个对象,对应的是下面这个显示的窗口(display==显示的窗口),对象有设置标题、窗口大小的方法。

3.pygame.display.set_mode(size)#返回的是Surface对象,也可以当作 screen 的意思

surface == 红线标出来的窗口)。可以设置填充色等。

ball = pygame.image.load("intro_ball.gif")
print(type(ball))

结果:

<class 'pygame.Surface'> 

4.ball.get_rect() #返回的是Rect对象,图片转换成矩形对象。

rect对象 == 矩形图片)。有移动等方法。

5.ballrect.move(speed)#speed是座标,列表表示。ballrect当前的座标是原点座标,移到speed的座标。

也可以理解,横向移动speed[0]个像素,纵向移动speed[1]个像素

Pygame的座标原点(0,0)点位于左上角,X轴自左向右,Y轴自上向下,单位为像素。

6.一个游戏循环(也可以称为主循环)就做下面这三件事:

  1. 处理事件
  2. 更新游戏状态
  3. 绘制游戏状态到屏幕上

二、视频笔记

1.Rect对象

2.screen.fill(color)

3.screen.blit(src, dest) 

4.代码整理预览

5.控制帧率控制画面的切换速度

其实就是根据帧率,计算出每次循环应该等的时间间隔,然后每次执行睡眠对应的时间间隔。 

6.键盘控制小球

方向键控制小球的移动方向。小球一直在根据speed的值move,通过时间改变speed的值来改变小球的移动

import sys, pygame
#初始化每个模块的调用
pygame.init()

size = width, height = 320, 240
speed = [0, 0]
black = 0, 0, 0
screen = pygame.display.set_mode(size)
print(type(screen))
ball = pygame.image.load("intro_ball.gif")
ballrect = ball.get_rect()

ftp = 100
fclock = pygame.time.Clock()
while 1:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_UP:
                speed[1] = -1 #小球向上移动
                speed[0] = 0 #小球左右不移动
            elif event.key == pygame.K_DOWN:
                speed[1] = 1 #小球向下移动
                speed[0] = 0  #小球左右不移动
            elif event.key == pygame.K_LEFT:
                speed[0] = -1  #小球向左移动
                speed[1] = 0 #小球上下不移动
            elif event.key == pygame.K_RIGHT:
                speed[0] = 1  #小球向右移动
                speed[1] = 0 #小球上下不移动
    ballrect = ballrect.move(speed)
    screen.fill(black)
    screen.blit(ball, ballrect)
    pygame.display.flip()
    fclock.tick(ftp)

7.屏幕的相关设置

 

 

 全屏显示,按ESC退出

import sys, pygame
#初始化每个模块的调用
pygame.init()
#获取屏幕的信息
vInfo = pygame.display.Info()
#获取屏幕的宽度和高度
size = width,height = vInfo.current_w ,vInfo.current_h

#size = width, height = 320, 240
speed = [0, 0]
black = 0, 0, 0

#设置屏幕模式为全屏
screen = pygame.display.set_mode(size,pygame.FULLSCREEN)

ball = pygame.image.load("intro_ball.gif")
ballrect = ball.get_rect()

ftp = 100
fclock = pygame.time.Clock()
while 1:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_UP:
                speed[1] = -1 #小球向上移动
                speed[0] = 0 #小球左右不移动
            elif event.key == pygame.K_DOWN:
                speed[1] = 1 #小球向下移动
                speed[0] = 0  #小球左右不移动
            elif event.key == pygame.K_LEFT:
                speed[0] = -1  #小球向左移动
                speed[1] = 0 #小球上下不移动
            elif event.key == pygame.K_RIGHT:
                speed[0] = 1  #小球向右移动
                speed[1] = 0 #小球上下不移动
            elif event.key == pygame.K_ESCAPE:#当全屏的时候,需要按键ESC退出
                sys.exit()
    ballrect = ballrect.move(speed)
    screen.fill(black)
    screen.blit(ball, ballrect)
    pygame.display.flip()
    fclock.tick(ftp)

窗口可以随意的拖动改变大小。 

import sys, pygame
#初始化每个模块的调用
pygame.init()
#获取屏幕的信息
vInfo = pygame.display.Info()
#获取屏幕的宽度和高度
size = width,height = vInfo.current_w ,vInfo.current_h

#size = width, height = 320, 240
speed = [0, 0]
black = 0, 0, 0

#设置屏幕模式为全屏
screen = pygame.display.set_mode(size,pygame.RESIZABLE)

ball = pygame.image.load("intro_ball.gif")
ballrect = ball.get_rect()

ftp = 100
fclock = pygame.time.Clock()
while 1:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_UP:
                speed[1] = -1 #小球向上移动
                speed[0] = 0 #小球左右不移动
            elif event.key == pygame.K_DOWN:
                speed[1] = 1 #小球向下移动
                speed[0] = 0  #小球左右不移动
            elif event.key == pygame.K_LEFT:
                speed[0] = -1  #小球向左移动
                speed[1] = 0 #小球上下不移动
            elif event.key == pygame.K_RIGHT:
                speed[0] = 1  #小球向右移动
                speed[1] = 0 #小球上下不移动
            elif event.key == pygame.K_ESCAPE:#当全屏的时候,需要按键ESC退出
                sys.exit()
        elif event.type == pygame.VIDEORESIZE:#检测窗口变化事件
            size = event.size[0],event.size[1]#获取最新的窗口大小
            screen = pygame.display.set_mode(size, pygame.RESIZABLE)#重新设置窗口模式
    ballrect = ballrect.move(speed)
    screen.fill(black)
    screen.blit(ball, ballrect)
    pygame.display.flip()
    fclock.tick(ftp)

 

 

关闭窗口,游戏停止 

import sys, pygame
pygame.init()

size = width, height = 320, 240
speed = [2, 2]
black = 0, 0, 0

screen = pygame.display.set_mode(size)

ball = pygame.image.load("intro_ball.gif")
ballrect = ball.get_rect()

while 1:
    for event in pygame.event.get():
        if event.type == pygame.QUIT: sys.exit()

    if pygame.display.get_active():#窗口关闭就不移动了
        ballrect = ballrect.move(speed)
    if ballrect.left < 0 or ballrect.right > width:
        speed[0] = -speed[0]
    if ballrect.top < 0 or ballrect.bottom > height:
        speed[1] = -speed[1]

    screen.fill(black)
    screen.blit(ball, ballrect)
    pygame.display.flip()

 

filp()是更新全部

update()是更新变化的地方

 

8.事件

 

 

 

 

 

 测试事件的三个属性,打印出来

import sys, pygame
pygame.init()

size = width, height = 320, 240
speed = [2, 2]
black = 0, 0, 0

screen = pygame.display.set_mode(size)

ball = pygame.image.load("intro_ball.gif")
ballrect = ball.get_rect()

while 1:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()
        elif event.type == pygame.KEYDOWN:
            if event.unicode == "":
                print("#",event.key,event.mod)
            else:
                print(event.unicode,event.key,event.mod)
    screen.fill(black)
    screen.blit(ball, ballrect)
    pygame.display.flip()

 

 

 

import sys, pygame
pygame.init()

size = width, height = 320, 240
speed = [2, 2]
black = 0, 0, 0

screen = pygame.display.set_mode(size)

ball = pygame.image.load("intro_ball.gif")
ballrect = ball.get_rect()

while 1:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()
        elif event.type == pygame.MOUSEBUTTONDOWN:
            if event.button == 1:
                speed[0] = event.pos[0]
                speed[1] = event.pos[1]
                ballrect = ballrect.move(speed)

    screen.fill(black)
    screen.blit(ball, ballrect)
    pygame.display.flip()

 

 

 

#创建一个事件,添加到队列中
    uevent = pygame.event.Event(pygame.KEYDOWN,{'nuicode':123,'key':pygame.K_SPACE,'mod':0})
    pygame.event.post(uevent)

9.颜色 

 

 

10.画图

 

 

 

 

 

 

 

11.绘制文字

 

 

 

 

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