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Pygame实现监听鼠标示例详解

程序员文章站 2022-06-10 15:16:18
目录初始化参数鼠标移动鼠标点击位置输出鼠标位置及其对用的按钮完整代码 pygame如何捕捉鼠标的活动初始化参数import pygame, sysfrom pygame.locals import *...

pygame如何捕捉鼠标的活动

初始化参数

import pygame, sys
from pygame.locals import *


def print_text(font, x, y, text, color=(0, 0, 0)):
    """打印字体函数"""
    img_text = font.render(text, true, color)
    screen.blit(img_text, (x, y))


pygame.init()
screen = pygame.display.set_mode((400, 400))
pygame.display.set_caption("监听鼠标活动")


while true:
    for event in pygame.event.get():
        if event.type == quit:
            pygame.quit()
            sys.exit()

    screen.fill((255, 255, 255))

    pygame.display.update()

Pygame实现监听鼠标示例详解

鼠标移动

event.type 事件为mousemotion,则为鼠标移动,event.pos可以获取当前位置,event.rel鼠标的偏移。

        	event.type == mousemotion:
            event.pos
            event.rel

我们将位置输出出来,定义鼠标的位置和鼠标的偏移量

mouse_x = mouse_y = 0
move_x = move_y = 0
	print_text(font1, 0, 0, "鼠标事件")
    print_text(font1, 0, 20, "鼠标的位置:" + str(mouse_x) + "," + str(mouse_y))
    print_text(font1, 0, 40, "鼠标的偏移:" + str(move_x) + "," + str(move_y))

Pygame实现监听鼠标示例详解

鼠标点击位置

mousebuttondown和mousebuttonup记录鼠标的按下和放开动作

mouse_down = mouse_up = 0
mouse_down_x = mouse_down_y = 0
mouse_up_x = mouse_up_y = 0

Pygame实现监听鼠标示例详解

输出鼠标位置及其对用的按钮

pygame.mouse.get_pressed() 可以监听鼠标的三个按键。

    x, y = pygame.mouse.get_pos()
    print_text(font1, 0, 180, "鼠标位置:" + str(x) + "," + str(y))

    b1, b2, b3 = pygame.mouse.get_pressed()
    print_text(font1, 0, 200, "按钮:" + str(b1) + "," + str(b2) + "," + str(b3))

Pygame实现监听鼠标示例详解

完整代码 

import pygame, sys
from pygame.locals import *


def print_text(font, x, y, text, color=(0, 0, 0)):
    """打印字体函数"""
    img_text = font.render(text, true, color)
    screen.blit(img_text, (x, y))


pygame.init()
# 字体
font1 = pygame.font.sysfont("方正粗黑宋简体", 18)
# 鼠标的移动位置
mouse_x = mouse_y = 0
move_x = move_y = 0
mouse_down = mouse_up = 0
mouse_down_x = mouse_down_y = 0
mouse_up_x = mouse_up_y = 0
screen = pygame.display.set_mode((400, 400))
pygame.display.set_caption("监听鼠标活动")


while true:
    for event in pygame.event.get():
        if event.type == quit:
            pygame.quit()
            sys.exit()
        elif event.type == mousemotion:
            mouse_x, mouse_y = event.pos
            move_x, mouse_y = event.rel
        elif event.type == mousebuttondown:
            mouse_down = event.button
            mouse_down_x, mouse_down_y = event.pos
        elif event.type == mousebuttonup:
            mouse_up = event.button
            mouse_up_x, mouse_up_y = event.pos

    screen.fill((255, 255, 255))
    print_text(font1, 0, 0, "鼠标事件")
    print_text(font1, 0, 20, "鼠标的位置:" + str(mouse_x) + "," + str(mouse_y))
    print_text(font1, 0, 40, "鼠标的偏移:" + str(move_x) + "," + str(move_y))
    print_text(font1, 0, 60, "鼠标按下:" + str(mouse_down)
               + "在" + str(mouse_down_x) + "," + str(mouse_down_y))
    print_text(font1, 0, 80, "鼠标松开:" + str(mouse_up)
               + "在" + str(mouse_up_x) + "," + str(mouse_up_y))
    x, y = pygame.mouse.get_pos()
    print_text(font1, 0, 180, "鼠标位置:" + str(x) + "," + str(y))

    b1, b2, b3 = pygame.mouse.get_pressed()
    print_text(font1, 0, 200, "按钮:" + str(b1) + "," + str(b2) + "," + str(b3))
    pygame.display.update() 

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