pygame事件
"""__author__zhangdong__"""
import pygame
if __name__ == '__main__':
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：鼠标按下弹起
MOUSEMOTION：鼠标移动
鼠标相关事件关心事件产生的位置
"""
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，获取鼠标事件产生的位置
if event.type == pygame.MOUSEBUTTONDOWN:
print('鼠标按下')
if event.type == pygame.MOUSEBUTTONUP:
print('鼠标弹起',event.pos)
if event.type == pygame.MOUSEMOTION:
print('鼠标移动')
#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('键盘按键被按下',chr(event.key))
if event.type == pygame.KEYUP:
print('键盘按钮弹起')
效果
7.gif
二、鼠标事件的应用
"""__author__zhangdong__"""
import pygame
from random import randint
def rand_color():
return randint(0,255),randint(0,255),randint(0,255)
def draw_ball(screen,pos):
pygame.draw.circle(screen, rand_color(),pos, randint(10, 20))
#写一个函数，判断指定的点是否在指定的矩形范围内
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
#写一个函数，画一个按钮
def draw_button(screen,bth_color,title_color):
pygame.draw.rect(screen, bth_color, (100, 100, 100, 60))
"""文字"""
font = pygame.font.SysFont('Times', 30)
title = font.render('come on', True, title_color)
screen.blit(title, (120, 120))
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')
#画个按钮
# """矩形框"""
# pygame.draw.rect(screen,(0,255,0),(100,100,100,60))
# """文字"""
# font = pygame.font.SysFont('Times',30)
# title = font.render('come on',True,(255,0,0))
# screen.blit(title,(120,120))
draw_button(screen,(0,255,0),(255,0,0))
pygame.display.flip()
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
exit()
if event.type == pygame.MOUSEBUTTONDOWN:
#在指定的坐标画一个球
# draw_ball(screen,event.pos)
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()
if event.type == pygame.MOUSEMOTION:
screen.fill((255,255,255))
draw_button(screen,(0,255,0),(255,0,0))
draw_ball(screen,event.pos)
pygame.display.flip(
结果
5.gif
三、鼠标事件应用2
"""__author__zhangdong__"""
import pygame
#写一个函数是否在某个范围内
def is_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('鼠标事件')
image = pygame.image.load('./飞机大战/photo1.jpg')
image = pygame.transform.scale(image, (100, 80))
image_x = 100
image_y = 100
screen.blit(image,(image_x,image_y))
pygame.display.flip()
#y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_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()
#保证鼠标在图片中心
image_y = y-image_h/2
image_x = x-image_w/2
screen.blit(image,(image_x,image_y))
pygame.display.flip()
结果
4.gif
四、动画效果
"""__author__zhangdong__"""
"""
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):
font = pygame.font.SysFont('Times',40)
title = font.render('Welcome',True,(0,0,0))
screen.blit(title,(200,200))
def animtion_title(screen):
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))
static_page(screen)
pygame.display.set_caption('动画效果')
pygame.display.flip()
while True:
#for里面的代码只有时间发生后才会执行
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休息一段时间再执行后面的代码
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)
animtion_title(screen)
#内容展示完成后，要更新到屏幕上
pygame.display.flip()
结果
3.gif
五、ball
"""__author__zhangdong__"""
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()
screen = pygame.display.set_mode((600,400))
screen.fill((255,255,255))
pygame.display.set_caption('ball')
pygame.display.update()
#保存初始坐标
ball_x = 100
ball_y = 100
x_speed = 5
y_speed = 5
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
exit()
if event.type == pygame.KEYDOWN:
if event.key == up:
y_speed = -5
x_speed = 0
elif event.key == down:
y_speed = 5
x_speed = 0
elif event.key == left:
x_speed = -5
y_speed = 0
elif event.key == right:
x_speed = 5
y_speed = 0
#刷新屏幕
pygame.time.delay(10)
screen.fill((255,255,255))
#每次循环让的x
ball_x +=x_speed
ball_y +=y_speed
if ball_x+20>=600:
ball_x = 600-20
x_speed *= -1
if ball_x<=20:
ball_x=20
x_speed *= -1
if ball_y+20>=400:
ball_y = 400-20
y_speed *= -1
if ball_y<= 20:
ball_y = 20
y_speed *= -1
draw_ball(screen,(255,0,0),(ball_x,ball_y))
pygame.display.update(
结果
2.gif
