PyGame起伏不定

Question

我是pygame的新手，我正在看如何开始使用它的一些教程，我写了这个基本代码，它只有移动和跳跃“功能”，但它真的不稳定，我不认为它是我的硬件(Macbook Pro 2018)。有人知道发生了什么吗？

下面是代码：

import pygame
pygame.init()
win_width = 500
win_height = 500
win = pygame.display.set_mode((win_width,win_height))

    pygame.display.set_caption("First PyGame")

    width = 40
    height = 60
    x = win_width/2
    y = win_height/2
    vel = 10

    isJump = False
    jumpCount = 10

    run = True
    while run:
        pygame.time.delay(100)

        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                print("adios putito")
                run = False

        keys = pygame.key.get_pressed()
        if keys[pygame.K_LEFT] and x > vel:
            x -= vel
        if keys[pygame.K_RIGHT] and x < win_width - width - vel:
            x+= vel
        if not (isJump):
            if keys[pygame.K_UP] and y > vel:
                y -= vel
            if keys[pygame.K_DOWN]and y < win_height - height - vel:
                y += vel
            if keys[pygame.K_SPACE]:
                isJump = True
        else:
            if jumpCount >= -10:
                neg = 1
                if jumpCount < 0:
                    neg = -1
                y -= (jumpCount ** 2) * 0.5 * neg
                jumpCount -= 1
            else:
                isJump = False
                jumpCount = 10

        win.fill((0,0,0))
        pygame.draw.rect(win,(255,255,255), (x,y,width,height))
        pygame.display.update()

    pygame.quit()

Answer 1

这条线

pygame.time.delay(100)

正在延迟您的脚本毫秒，删除该行，它应该可以很好地工作！

结果：

import pygame
pygame.init()
win_width = 500
win_height = 500
win = pygame.display.set_mode((win_width,win_height))

    pygame.display.set_caption("First PyGame")

    width = 40
    height = 60
    x = win_width/2
    y = win_height/2
    vel = 10

    isJump = False
    jumpCount = 10

    run = True
    while run:

        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                print("adios putito")
                run = False

        keys = pygame.key.get_pressed()
        if keys[pygame.K_LEFT] and x > vel:
            x -= vel
        if keys[pygame.K_RIGHT] and x < win_width - width - vel:
            x+= vel
        if not (isJump):
            if keys[pygame.K_UP] and y > vel:
                y -= vel
            if keys[pygame.K_DOWN]and y < win_height - height - vel:
                y += vel
            if keys[pygame.K_SPACE]:
                isJump = True
        else:
            if jumpCount >= -10:
                neg = 1
                if jumpCount < 0:
                    neg = -1
                y -= (jumpCount ** 2) * 0.5 * neg
                jumpCount -= 1
            else:
                isJump = False
                jumpCount = 10

        win.fill((0,0,0))
        pygame.draw.rect(win,(255,255,255), (x,y,width,height))
        pygame.display.update()

    pygame.quit()

Answer 2

这仍然是一个好主意，有一个游戏时钟，以延迟您的程序足够保持一个持久的帧率。您可以使用pygame的pygame.time.Clock对象并使用它的tick()方法来延迟您的游戏。tick方法接受一个整数，它表示您希望游戏达到的FPS上限。如果您的游戏运行速度慢于您输入的FPS值，则不会发生延迟。

import pygame
pygame.init()
win_width = 500
win_height = 500
win = pygame.display.set_mode((win_width,win_height))

    pygame.display.set_caption("First PyGame")
    clock = pygame.time.Clock()

    width = 40
    height = 60
    x = win_width/2
    y = win_height/2
    vel = 10

    isJump = False
    jumpCount = 10

    run = True
    while run:
        # Delay your game to try and keep 60 FPS.
        clock.tick(60)

        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                print("adios putito")
                run = False

        keys = pygame.key.get_pressed()
        if keys[pygame.K_LEFT] and x > vel:
            x -= vel
        if keys[pygame.K_RIGHT] and x < win_width - width - vel:
            x+= vel
        if not (isJump):
            if keys[pygame.K_UP] and y > vel:
                y -= vel
            if keys[pygame.K_DOWN]and y < win_height - height - vel:
                y += vel
            if keys[pygame.K_SPACE]:
                isJump = True
        else:
            if jumpCount >= -10:
                neg = 1
                if jumpCount < 0:
                    neg = -1
                y -= (jumpCount ** 2) * 0.5 * neg
                jumpCount -= 1
            else:
                isJump = False
                jumpCount = 10

        win.fill((0,0,0))
        pygame.draw.rect(win,(255,255,255), (x,y,width,height))
        pygame.display.update()

    pygame.quit()