Question

我正在制作一个10年级计算机科学课程的游戏，我的游戏是（到目前为止）玩家用箭头键上下移动汽车，同时避免不同的形状（现在目前只有形状是一个正方形用于测试），如果它接触到屏幕的顶部或底部，则游戏结束并且代码自动重复。我看到方块从左向右移动，但有没有办法让它从右向左移动？到目前为止，这是我的代码。

import pygame
import time
import random

pygame.init() 

gameExit=False

display_width=800
display_height=600
car_height=188

gameDisplay = pygame.display.set_mode((display_width,display_height))
pygame.display.set_caption('A bit Racey')

clock = pygame.time.Clock()

black = (0,0,0)
white = (255,255,255)
red=(255,0,0)
blue=(0,0,255)

crashed = False
carImg = pygame.image.load('racecar.png')

def car(x,y):
    gameDisplay.blit(carImg, (x,y))

def things(thingx, thingy, thingw, thingh, colour):
    pygame.draw.rect(gameDisplay, colour, [thingx, thingy, thingw, thingh])

def text_objects(text, font):
    textSurface = font.render(text, True, red)
    return textSurface, textSurface.get_rect()

def message_display(text):
    largeText = pygame.font.Font('freesansbold.ttf',115)
    TextSurf, TextRect = text_objects(text, largeText)
    TextRect.center = ((display_width/2),(display_height/8))
    gameDisplay.blit(TextSurf, TextRect)

    pygame.display.update()

    time.sleep(2)

    game_loop()

def crash():
    message_display('You Crashed')

def game_loop():
    x =  (display_width * 0)
    y = (display_height * 0.68)

    gameExit=False

    y_change=0

    thing_starty=random.randrange(0, display_height)
    thing_startx=-300
    thing_speed=7
    thing_width=100
    thing_height=100

    while not gameExit:
        for event in pygame.event.get():
            print(event)       
            if event.type == pygame.QUIT:
                pygame.quit()
                quit()

            #Key bindings
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_UP:
                    y_change = -10
                elif event.key == pygame.K_DOWN:
                    y_change = 10
            if event.type == pygame.KEYUP:
                if event.key == pygame.K_UP or event.key == pygame.K_DOWN:
                    y_change = 0        

        y +=y_change    

        gameDisplay.fill(white)

        # things(thingx, thingy, thingw, thingh, colour)
        things(thing_startx, thing_starty, thing_width, thing_height, blue)
        thing_startx += thing_speed

        car(x,y)    

        if y > display_height - car_height or y < 0:
            crash()

        pygame.display.update()
        clock.tick(60)

game_loop()
pygame.quit()
quit()

Answer 1

将thing_startx=-300更改为thing_startx = display_width，将thing_speed = 7更改为thing_speed = -7。

如何在Python中反转形状上的动画？

1 个答案: