day11-pygame

01-pygame事件

import pygame

if __name__ == '__main__':
初始化pygame
    pygame.init()
    screen = pygame.display.set_mode((600,400))
    screen.fill((255,255,255))
    # 设置窗口标题
    pygame.display.set_caption('游戏事件')

    pygame.display.flip()

    """
    QUIT:关闭按钮被点击事件
    MOUSEBUTTONDOWN:鼠标按下事件
    MOUSEBUTTONUP:鼠标弹起事件
    MOUSEMOTION:鼠标移动事件
    鼠标相关事件关心事件产生的位置
    
    
    KEYDOWN:键盘按下
    KEYUP:键盘弹起
    
    
    """
    while True:
        # 每次循环检测有没有事件发生
        for event in pygame.event.get():
            # 不同类型的事件对应的type值不一样
            if event.type == pygame.QUIT:
                exit()
            # 鼠标相关事件
            # pos属性，获取鼠标事件的位置
            if event.type == pygame.MOUSEBUTTONDOWN:
                print('鼠标按下',event.pos)
            if event.type == pygame.MOUSEBUTTONUP:
                print('鼠标弹起',event.pos)
            if event.type == pygame.MOUSEMOTION:
                print('鼠标移动',event.pos)

            # 键盘相关事件
            # key属性，被按的按键对应的值的编码
            if event.type == pygame.KEYDOWN:
                print('按键被按下',chr(event.key))
            if event.type == pygame.KEYUP:
                print('键盘按键弹起',chr(event.key))

02-鼠标事件的应用1

import pygame
import random

def rand_color():
    # 产生随机颜色
    return (random.randint(0,255),random.randint(0,255),random.randint(0,255))
def draw_ball(screen,pos):
    pygame.draw.circle(screen, rand_color(), pos, random.randint(10, 20))
    # 只要屏幕上的内容有更新，都需要调用下面这两个方法
    # pygame.display.update()
    pygame.display.flip()

# 写一个函数，判断指定的点是否在指定的矩形范围中
def isInRect(point,rect):
    x,y = point
    rx, ry, rw, rh = rect
    if (rx <=x<rx+rw) and (ry<=y<=ry+rh):
        return True
    return False

# 写一个函数，画一个按钮
def draw_button(screen,bth_color,title_color):

    """矩形框"""
    pygame.draw.rect(screen, bth_color, (100, 100, 100, 60))
    """文字"""
    font = pygame.font.SysFont('Times', 30)
    title = font.render('clicke', True, title_color)
    screen.blit(title, (120, 120))


# 按钮坐标

if __name__ == '__main__':
    pygame.init()
    screen = pygame.display.set_mode((600,400))
    screen.fill((255,255,255))
    pygame.display.set_caption('鼠标事件')

    # 画一个按钮
    # draw_button(screen,(0,255,0),(255,0,0))


    pygame.display.flip()

    while True:
        for event in pygame.event.get():
            # 退出
            if event.type == pygame.QUIT:
                exit()

            if event.type == pygame.MOUSEBUTTONDOWN:
                # pygame.draw.circle(screen,rand_color(),event.pos,random.randint(10,20))
                # # 只要屏幕上的内容有更新，都需要调用下面这两个方法
                # # pygame.display.update()
                # pygame.display.flip()
                # 在指定的坐标处画一个球
                # draw_ball(screen,event.pos)
                if isInRect(event.pos,(100,100,100,60)):
                    draw_button(screen,(0,100,0),(100,0,0))
                    pygame.display.update()

            if event.type == pygame.MOUSEBUTTONUP:
                if isInRect(event.pos, (100, 100, 100, 60)):
                    draw_button(screen,(0,255,0),(255,0,0))
                    pygame.display.update()
            if event.type == pygame.MOUSEMOTION:
                screen.fill((255,255,255))
                draw_button(screen,(0,100,0),(100,0,0))
                draw_ball(screen,event.pos)

03-鼠标事件的应用2

# 要求：现在屏幕上显示一张图片，鼠标按下移动的时候，拽着图片跟着一起动，鼠标弹起就不动了


import pygame

# 写一个函数，判断一个点是否在某个范围内
def isInRect(point,rect):
    x,y = point
    rx,ry,rw,rh = rect
    if (rx<=x<=rx+rw) and (ry<=y<=ry+rh):
        return True
    return False





if __name__ == '__main__':
    pygame.init()
    screen = pygame.display.set_mode((600,400))
    screen.fill((255,255,255))
    pygame.display.set_caption('游戏事件')
    pygame.display.flip()

    # 显示一张图片
    image = pygame.image.load('./xx.png')
    screen.blit(image,(200,100))
    image_x = 100
    image_y = 100


    # 用来存储图片是否可以移动
    is_move = False

    pygame.display.flip()
    while True:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                exit()
            # 鼠标按下，让状态变成可以移动
            if event.type == pygame.MOUSEBUTTONDOWN:
                w,h = image.get_size()
                if isInRect(event.pos,(image_x,image_y,w,h)):
                    is_move = True

            #   鼠标弹起，让状态变成不可以移动
            if event.type == pygame.MOUSEBUTTONUP:
                is_move = False


            # 鼠标移动对应的事件
            if event.type == pygame.MOUSEMOTION:
                if is_move:
                    screen.fill((255,255,255))
                    x,y = event.pos
                    image_w ,image_h= image.get_size()
                    # 保证鼠标在图片的中心
                    image_x = x-image_w/2
                    image_y = y-image_h/2
                    screen.blit(image,(x-image_w/2,y-image_h/2))
                    pygame.display.update()

04-动画效果

"""
动画原理：不断的刷新界面上的内容（一帧一帧的画）
"""


import pygame
from random import randint

def static_page(screen):
    """
    页面上的静态内容
    """
    # 静态文字
    font = pygame.font.SysFont('Times',40)
    title = font.render('welcome',True,(0,0,0))
    screen.blit(title,(200,200))

def animation_title(screen):
    """
    字体颜色发生改变
    """
    font = pygame.font.SysFont('Times',40)
    title = font.render('python',True,(randint(0,255),randint(0,255),randint(0,255)))
    screen.blit(title,(100,100))



if __name__ == '__main__':
   pygame.init()
   screen = pygame.display.set_mode((600,400))
   screen.fill((255,255,255))

   pygame.display.flip()

   while True:
       # for里面的代码只有事件发生后才会执行
       for event in pygame.event.get():
           if event.type == pygame.QUIT:
               exit()
        # 在下面去写每一帧要显示的内容
       # 程序执行到这个位置，CPU休息一段时间在执行后面的代码（线程在这儿阻塞指定的时间）
       # 单位：毫秒（1000ms = 1s）
       pygame.time.delay(60)

       # 动画前要将原来的内容全部清空
       screen.fill((255,255,255))
       static_page(screen)
       animation_title(screen)

       # 内容展示完成后，要更新到屏幕上
       pygame.display.update()

05-ballgame

import pygame

def draw_ball(place,color,pos):
    """
    画球
    """
    pygame.draw.circle(place,color,pos,20)

# 方向对应的key值
Up = 273
Down = 274
Left = 276
Right = 275


if __name__ == '__main__':
    pygame.init()
    sceen = pygame.display.set_mode((1024,600))
    sceen.fill((255,255,255))

    pygame.display.flip()

    # 保存初始坐标
    ball_x = 100
    ball_y = 100
    x_speed = 1
    y_speed = 0

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

            #    通过上下左右键控制球的方向
            if event.type == pygame.KEYDOWN:
                if event.key == Up:
                    y_speed = -1
                    x_speed = 0
                elif event.key == Down:
                    y_speed = 1
                    x_speed = 0
                elif event.key == Right:
                    y_speed = 0
                    x_speed = 1
                elif event.key == Left:
                    y_speed = 0
                    x_speed = -1
        # 刷新屏幕
        sceen.fill((255,255,255))

        ball_x += x_speed
        ball_y += y_speed
        # 边界检测
        if ball_x + 20 >= 1024 or ball_x<=20 or ball_y +20 >=600 or ball_y<=20 :
            print('游戏结束')
            exit()
        #     ball_x = 1024-20
        #     x_speed *= -1
        # if ball_x - 20 <=0:
        #     ball_x = 20
        #     x_speed *= -1
        # if ball_y - 20 >=0:
        #     y_speed *= -1
        # if ball_y + 20 <=600:
        #     y_speed *= -1
        draw_ball(sceen,(255,0,0),(ball_x,ball_y))

        pygame.display.update()

06-多个球一起动

import pygame
import random

random_color = random.randint(0,255),random.randint(0,255),random.randint(0,255)

if __name__ == '__main__':
    pygame.init()
    screen = pygame.display.set_mode((600,400))
    screen.fill((255,255,255))
    pygame.display.flip()

    # all_balls中保存多个球
    # 每个球要保存：半径、圆心坐标、颜色、x速度、y速度
    all_balls = [
        {'r':random.randint(10,20),
         'pos':(100,100),
         'color':random_color,
         'x_speed':random.randint(-1,1),
         'y_speed': random.randint(-1, 1)
         },
        {'r': random.randint(10, 20),
         'pos': (300, 300),
         'color': random_color,
         'x_speed': random.randint(-1, 1),
         'y_speed': random.randint(-1, 1)
         }
    ]

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

            if event.type == pygame.MOUSEBUTTONDOWN:
                ball = {
                    'r':random.randint(10,25),
                    'pos':event.pos,
                    'color':random_color,
                    'x_speed':random.randint(-3,3),
                    'y_speed':random.randint(-3,3)
                }
        #     保存球
                all_balls.append(ball)


        # 刷新界面
        screen.fill((255,255,255))

        for ball_dict in all_balls:
            # 取出原来的x坐标和y坐标以及他们的速度
            x,y = ball_dict['pos']
            x_speed = ball_dict['x_speed']
            y_speed = ball_dict['y_speed']
            x += x_speed
            y += y_speed
            pygame.draw.circle(screen,ball_dict['color'],(x,y),ball_dict['r'])
            # 更新球对应的坐标
            ball_dict['pos'] = x,y

        pygame.display.update()