pygame事件，鼠标事件与键盘事件
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 点击鼠标
if event.type == pygame.MOUSEBUTTONDOWN:
print('鼠标点击事件',event.pos)
#鼠标松开
if event.type == pygame.MOUSEBUTTONUP:
print('鼠标松开事件',event.pos)
# 鼠标移动
if event.type == pygame.MOUSEMOTION:
print('鼠标移动事件',event.pos)
# 鼠标事件产生位置 event,pos获取鼠标产生位置
#键盘相关事件
# 键盘产生位置 event.key 这是以ASCII编码形式返回的位置
if event.type == pygame.KEYUP:
print('键盘松开事件',chr(event.key))
if event.type == pygame.KEYDOWN:
print('键盘按下事件',chr(event.key))
鼠标事件的应用
import pygame
import random
def rand_color():
return random.randint(0,255)
def draw_ball(screen):
index = random.randint(0,600)
indey = random.randint(0,600)
if 480<=index<=600 and 480<=indey<=580:
pass
else:
pygame.draw.circle(screen, (rand_color(), rand_color(), rand_color()), (index,indey), random.randint(10, 20))
pygame.display.update()
def draw_button():
# 画按钮 坐标(500,500) 大小 30*40
pygame.draw.rect(screen,(189,240,32),(500,500,80,60))
# 按钮文字
font = pygame.font.SysFont('Times',30)
title = font.render('click',True,(145,34,64))
screen.blit(title,(515,515))
def is_in_rect(rect,point):
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((600,600))
screen.fill((255,255,255))
pygame.display.set_caption('鼠标事件')
draw_button()
pygame.display.flip()
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
exit()
if event.type == pygame.MOUSEBUTTONDOWN:
if is_in_rect((500,500,80,60),event.pos):
draw_ball(screen)
image.png
结果：点击click随机生成一个球 click按钮内不产生球
鼠标移动事件
import pygame
if __name__ == '__main__':
pygame.init()
screen = pygame.display.set_mode((600,600))
screen.fill((123,123,20))
pygame.display.set_caption('图片事件')
def is_in_rect(pos,rect):
x,y = event.pos
rx,ry,rw,rh = rect
if (rx<=x<rx+rw) and (ry<=y<=ry+rh):
return True
return False
pygame.display.flip()
def move_image(point):
image = pygame.image.load('./bomb.png')
x,y = event.pos
screen.blit(image, (x,y))
image_size = image.get_size()
print(image_size)
# pygame.display.update()
is_move =True
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
exit()
if event.type == pygame.MOUSEBUTTONDOWN:
is_move = True
if event.type == pygame.MOUSEBUTTONUP:
is_move = False
if event.type == pygame.MOUSEMOTION:
if is_move:
screen.fill((123,123,20))
move_image(event.pos)
pygame.display.update()
结果：图片随鼠标运动
image.png
动画效果
import pygame
import random
def rand_color():
return random.randint(0,255)
def static_page(screen):
font = pygame.font.SysFont('Times',40)
title = font.render('hello',True,(233,233,0))
screen.blit(title,(280,260))
def animation_title(screen):
font = pygame.font.SysFont('Times', 40)
title = font.render('hello', True, (rand_color(),rand_color(),rand_color()))
screen.blit(title, (200, 200))
if __name__ == '__main__':
pygame.init()
screen = pygame.display.set_mode((600,600))
screen.fill((123,123,30))
static_page(screen)
pygame.display.flip()
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
exit()
# 每一帧要显示的内容
pygame.time.wait(50)
pygame.time.delay(50)
# 阻塞线程
# 动画前要将原来的内容全部清空
screen.fill((123,123,20))
static_page(screen)
animation_title(screen)
# 更新显示
pygame.display.update()
结果：变化文字颜色
image.png
鼠标点击生成小球
"""__author__== God"""
import pygame
import random
def draw_ball(place,color,pos,radius):
pygame.draw.circle(place,color,pos,radius)
if __name__ == '__main__':
pygame.init()
screen = pygame.display.set_mode((600,600))
screen.fill((123,123,123))
pygame.display.flip()
ball_x = 100
ball_y = 100
# x_speed = random.randint(1,8)
# y_speed = random.randint(1,8)
x_speed = 0
y_speed = 0
# 方向对应的值
Up = 273
Down = 274
Left =276
Right =275
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 = -20
x_speed = 0
elif event.key == Down:
y_speed = 20
x_speed = 0
elif event.key == Right:
x_speed = 20
y_speed = 0
elif event.key == Left:
x_speed = -20
y_speed = 0
screen.fill((123,123,200))
pygame.time.delay(50)
ball_x+=x_speed
ball_y+=y_speed
if ball_x+10>=600 or ball_x-10<=0:
x_speed*=-1
if ball_y+10>=600 or ball_y-10<=0:
y_speed*=-1
# y_speed*=-1
draw_ball(screen,(123,123,1),(ball_x,ball_y),20)
pygame.display.update()
结果：键盘控制运动小球方向
image.png
大球吃小球
"""__author__== God"""
import pygame
import random
from math import sqrt
def rand_color():
return random.randint(0,255),random.randint(0,255),random.randint(0,255)
def crash(item1,item2):
item1x,item1y = item1['pos']
item2x,item2y = item2['pos']
dx = item2x- item1x
dy = item2y - item1y
dist = int(sqrt(dx*dx+dy*dy))
if dist<item1['r']+item2['r']:
if item2['r']>item1['r']:
item2['r']+=1
if item1 in all_balls[:]:
all_balls.remove(item1)
else:
item1['r']+=1
if item2 in all_balls[:]:
all_balls.remove(item2)
if __name__ == '__main__':
pygame.init()
screen = pygame.display.set_mode((600,600))
screen.fill((123,123,20))
pygame.display.flip()
all_balls = []
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
exit()
if event.type == pygame.MOUSEBUTTONDOWN:
ball ={
'r':random.randint(5,15),
'color':rand_color(),
'pos':event.pos,
'x_speed':random.randint(-3,3),
'y_speed':random.randint(-3,3)
}
all_balls.append(ball)
screen.fill((123, 123, 20))
for ball in all_balls:
# pygame.time.wait(2)
x,y = ball['pos']
x+=ball['x_speed']
y+=ball['y_speed']
if x + ball['r'] >= 600 or x -ball['r'] <= 0:
ball['x_speed'] *= -1
if y + ball['r'] >= 600 or y - ball['r'] <= 0:
ball['y_speed']*= -1
ball['pos'] = x,y
pygame.draw.circle(screen,ball['color'],(x,y),ball['r'])
pygame.display.update()
index = len(all_balls)
for item1 in all_balls:
for item2 in all_balls:
if item1!=item2:
crash(item1,item2)
结果：大球吃小球
image.png
