'''
QUIT:关闭按钮被点击事件
MOUSEBUTTONDOWN:鼠标按下事件
MOUSEBUTTONUP：鼠标松开事件
MOUSEMOTION:鼠标移动事件
KEYDOWN:：键盘按下事件
KEYUP:键盘松开事件
'''
event.pos获得当前的位置
event.key属性,被按的按键对应值的编码,在通过chr()把编码转换成字符集
#3.游戏循环
while True:
#检测事件有没有发生
for event in pygame.event.get():
#鼠标相关事件
#pos属性,获得鼠标事件产生的位置
if event.type == pygame.QUIT:
print('关闭被点击')
exit()
if event.type == pygame.MOUSEBUTTONDOWN:
print('I',event.pos)
if event.type == pygame.MOUSEBUTTONUP:
print('LOVE YOU',event.pos)
if event.type == pygame.MOUSEMOTION:
print('鼠标移动',event.pos)
#键盘相关事件
#key属性,被按的按键对应值的编码
if event.type == pygame.KEYDOWN:
print('键盘按键被按下',chr(event.key))
if event.type == pygame.KEYUP:
print('键盘按键被松开',chr(event.key))
练习:鼠标点击方框按钮变背景和字体颜色
import pygame
from random import randint
def rand_color():
"""
产生随机颜色
"""
return randint(0, 255), randint(0, 255), randint(0, 255)
# 写一个函数，判断指定的点是否在指定的矩形范围中
def is_in_rect(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):
# 画个按钮
"""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')
pygame.display.flip()
while True:
for event in pygame.event.get():
# 退出
if event.type == pygame.QUIT:
exit()
if event.type == pygame.MOUSEBUTTONDOWN:
if is_in_rect(event.pos, (100, 100, 100, 60)):
draw_button(screen, (0, 100, 0), (100, 0, 0))
pygame.display.update()
if event.type == pygame.MOUSEBUTTONUP:
if is_in_rect(event.pos, (100, 100, 100, 60)):
draw_button(screen, (0, 255, 0),(255, 0, 0))
pygame.display.update()
练习：先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
# 点（x,y）
# 范围 rect(x,y,w,h)
def is_in_rect(pos, rect):
x, y = pos
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('图片拖拽')
# 显示一张图片
image = pygame.image.load('./luffy2.png')
image_x = 100
image_y = 100
screen.blit(image,(image_x, image_y))
pygame.display.flip()
# 用来存储图片是否可以移动
is_move = False
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 is_in_rect(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_y = y-image_h/2
image_x = x-image_w/2
screen.blit(image, (image_x, image_y))
pygame.display.update()
练习:打印一行字，自动变颜色
# !/usr/bin/env/python
# .*. encoding:utf-8 -*-
#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 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, (50, 50))
if __name__ == '__main__':
pygame.init()
screen = pygame.display.set_mode((600,400))
screen.fill((255,255,255))
pygame.display.flip()
while True:
for event in pygame.event.get():
if event.type ==pygame.QUIT:
exit()
'''程序执行到这个位置,线程阻塞一段时间在执行
1000ms毫秒 = 1s
'''
pygame.time.delay(500)
#调用函数
animation_title(screen)
#内容展示到屏幕上
pygame.display.update()
练习:键盘控制球的运动，碰到边界自动弹回来
# !/usr/bin/env/python
# .*. encoding:utf-8 -*-
import pygame
def draw_ball(place,color,pos):
pygame.draw.circle(place,color,pos,20)
if __name__ == '__main__':
pygame.init()
screen = pygame.display.set_mode((600, 400))
screen.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
#方向对应的key值
Up =273
Down = 274
Right = 275
Left =276
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
exit()
#键盘控制方向
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 ==Left:
x_speed = -1
y_speed = 0
elif event.key == Right:
x_speed =1
y_speed =0
elif event.key == 32:
x_speed = 0
y_speed = 0
ball_x += x_speed
ball_y += y_speed
#球碰到边界自动弹回来
if ball_x + 20>=600:
ball_x =600-20
x_speed *= -1
if ball_x-20 <=0:
x_speed *= -1
if ball_y + 20>=400:
ball_y =400-20
y_speed *= -1
if ball_y-20 <=0:
y_speed *= -1
screen.fill((255,255,255))
#画一个球
draw_ball(screen,(255,0,0),(ball_x,ball_y))
pygame.display.update()
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