如何区分左键单击,右键单击pygame中的鼠标点击？

Question

从pygame的api,它有:

event type.MOUSEBUTTONDOWN, MOUSEBUTTONUP, MOUSEMOTION

但是没有办法区分右键,左键点击？

Answer 1

if event.type == pygame.MOUSEBUTTONDOWN:
    print event.button

event.button可以等于几个整数值:

1 - 左键单击

2 - 中间点击

3 - 右键单击

4 - 向上滚动

5 - 向下滚动

您也可以获取当前按钮状态,而不是事件:

pygame.mouse.get_pressed()

这会返回一个元组:

(leftclick,middleclick,rightclick)

每一个都是一个布尔整数,表示按钮向上/向下.

Answer 2

您可能需要仔细查看本教程,以及n.st 对此SO问题的回答.

因此,向您展示如何区分右键和左键单击的代码如下所示:

#!/usr/bin/env python
import pygame

LEFT = 1
RIGHT = 3

running = 1
screen = pygame.display.set_mode((320, 200))

while running:
    event = pygame.event.poll()
    if event.type == pygame.QUIT:
        running = 0
    elif event.type == pygame.MOUSEBUTTONDOWN and event.button == LEFT:
        print "You pressed the left mouse button at (%d, %d)" % event.pos
    elif event.type == pygame.MOUSEBUTTONUP and event.button == LEFT:
        print "You released the left mouse button at (%d, %d)" % event.pos
    elif event.type == pygame.MOUSEBUTTONDOWN and event.button == RIGHT:
        print "You pressed the right mouse button at (%d, %d)" % event.pos
    elif event.type == pygame.MOUSEBUTTONUP and event.button == RIGHT:
        print "You released the right mouse button at (%d, %d)" % event.pos

    screen.fill((0, 0, 0))
    pygame.display.flip()