使玩家在Pygame中跳跃 [英] Making Player Jump in Pygame

问题描述

我正在使用pygame练习制作一个非常简单的游戏。我试图让我的玩家在按下空格键时跳转。这是我正在尝试的循环代码：

I'm making a very simple game using pygame to practice. Im trying to make my "player" jump when spacebar is pressed. Here is the loop code I'm trying:

x,y=10,300
movex,movey=0,0


if event.type==KEYDOWN:
    if event.key==K_LEFT:
        movex = -0.2
    elif event.key==K_RIGHT:
        movex=+0.2
    elif event.key==K_DOWN:
        movey=+0.2
    elif event.key==K_SPACE:
        movey=-0.4
        movey=+0.4

if event.type==KEYUP:
        if event.key==K_LEFT:
            movex = 0
        elif event.key==K_RIGHT:
            movex=0
        elif event.key==K_DOWN:
            movey=0
        elif event.key==K_SPACE:
            movey=0


x+=movex
y+=movey
screen.blit(player,(x,y))

除了跳转部分（当我按空格键时）之外，控件均起作用。就像将播放器向下滑动一样。谁能告诉我为什么它不起作用以及如何解决？

The controls work except for the jump part (when I press the spacebar). It just like slides the player down. Can anyone tell me why it doesn't work and how to fix it?

推荐答案

它不起作用，因为发生KEYDOWN事件您正在执行以下操作：

It doesn't work because on KEYDOWN event you are doing:

    movey=-0.4
    movey=+0.4

最终等于 movey = 0 。要修复它，您应该只执行 movey = + 0.4 ，然后在KEYUP上将其还原为0。

which in the end is equivalent to movey=0. To fix it you should do only movey=+0.4 and then on KEYUP it will revert to 0.

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