鼠标事件的应用
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @File : 02-鼠标事件得应用.py
# @Author: KingJX
# @Date : 2018/7/30 10:50
""""""
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))
# 只要屏幕上的内容有更新,都需要调用这两个方法中得一个
# pygame.display.flip()
pygame.display.update()
# 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
# 画一个按钮
def draw_button(screen, btn_color, title_color):
# 画个按钮
"""矩形框"""
pygame.draw.rect(screen, btn_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))
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')
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:
if isInRect(event.pos,(100,100,100,60)):
draw_button(screen,(0,100,0),(0,0,100))
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, 255, 0), (255, 0, 0))
draw_ball(screen,event.pos)
# pygame.display(screen,event.pos)
图片拖拽
# encoding = utf - 8
# # Time: 2018 / 7 / 26
# # 20: 23
# # Author: 蘑菇plus
# # Email: 497392071 @ qq.com
# # File: 显示图形.py
# # Software: PyCharm
import pygame
from random import randint
#写一个函数，判断一个点是否在某个范围内
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__':
pass
pygame.init()
screen=pygame.display.set_mode((600,400))
screen.fill((255,255,255))
pygame.display.set_caption('图片拖拽')
#显示图片
image=pygame.image.load('./gg1.png')
image_x=100
image_y=100
screen.blit(image, (image_x, image_y))
pygame.display.flip()
#默认为false
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
#让鼠标弹起，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()
#将鼠标位置放置在图片中心
image_y=y-image_h/2
image_x=x-image_w/2
screen.blit(image,(x-image_w/2,y-image_h/2))
pygame.display.update()
画球
# encoding = utf - 8
# Time: 2018 / 7 / 26
# 20: 23
# Author: 蘑菇plus
# Email: 497392071 @ qq.com
# File: 显示图形.py
# Software: PyCharm
import pygame
#方向对应的key值
up=273
down=274
left=276
right=275
#画球
def draw_ball(place,color,pos):
#画球
pygame.draw.circle(place,color,pos,10)
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=0
ball_y=10
x_speed=1
y_speed=0
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=-1
x_speed=0
elif event.key==down:
y_speed=1
x_speed=0
elif event.key==right:
x_speed=1
y_speed=0
elif event.key==left:
x_speed=-1
y_speed=0
#刷新屏幕
screen.fill((255,255,255))
#每次循环让球的x和y坐标变化
pygame.time.delay(10)
ball_x += x_speed
ball_y += y_speed
#边界检测
# if ball_x + 20 >= 600 or ball_x<=20 or ball_y+20>=400 or ball_y<=20:
draw_ball(screen, (255, 0, 0), (ball_x, ball_y))
if ball_x + 10 >= 600:
# print('游戏结束')
# exit()
ball_x = 600 - 10
x_speed *= -1
# ball_x -= 1
# draw_ball(screen, (255, 0, 0), (ball_x, ball_y))
elif ball_x-10<=0:
ball_x=0+10
x_speed *= -1
# draw_ball(screen,(255,0,0),(ball_x,ball_y))
pygame.display.update()
多个球一起动
# encoding = utf - 8
# Time: 2018 / 7 / 26
# 20: 23
# Author: 蘑菇plus
# Email: 497392071 @ qq.com
# File: 显示图形.py
# Software: PyCharm
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(-3,3),
'y_speed': random.randint(-3, 3),
},
{'r': random.randint(10, 20),
'pos': (300, 300),
'color': random_color,
'x_speed': random.randint(-3, 3),
'y_speed': random.randint(-3, 3),
}
]
while True:
for event in pygame.event.get():
if event.type==pygame.QUIT:
exit()
# if event.type==pygame.MOUSEBUTTONDOWN:
# #点一下鼠标创建一个球
# 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:
#取出球原来的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()
动画效果
# encoding = utf - 8
# Time: 2018 / 7 / 26
# 20: 23
# Author: 蘑菇plus
# Email: 497392071 @ qq.com
# File: 显示图形.py
# Software: PyCharm
"""
动画原理：不断刷新界面上的内容（一帧一帧的画）
"""
import pygame
from random import randint
def static_page(screen):
#静态文字
font=pygame.font.SysFont('Times',40)
title=font.render('welcome',True,(0,0,0))
screen.blit(title,(200,200))
#动态文字
def animation_title(screen):
font=pygame.font.SysFont('Times',40)
title=font.render('python',True,(randint(0,255),89,74))
screen.blit(title,(120,140))
if __name__ == '__main__':
pygame.init()
screen=pygame.display.set_mode((600,400))
screen.fill((255,255,255))
static_page(screen)
pygame.display.flip()
while True:
#for循环里的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(线程在这里阻塞指定的事件)
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()
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