Question

我正在为我的程序制作游戏，当我按左键或右键时，我正试图水平翻转图像。我发现了函数

pygame.transform.flip

但我不确定在我的代码中将其插入的位置。如果有人能帮助我，我们将不胜感激。这是我的代码。也有人可以告诉我如何防止图像移出屏幕？

import pygame
import os

img_path = os.path.join('C:\Python27', 'player.png')

class Player(object):  
    def __init__(self):
        self.image = pygame.image.load("player1.png")

        self.x = 0
        self.y = 0

    def handle_keys(self):
        """ Handles Keys """
        key = pygame.key.get_pressed()
        dist = 5
        if key[pygame.K_DOWN]: 
            self.y += dist 
        elif key[pygame.K_UP]: 
            self.y -= dist 
        if key[pygame.K_RIGHT]: 
            self.x += dist 
        elif key[pygame.K_LEFT]:
            self.x -= dist
)

    def draw(self, surface):
        surface.blit(self.image, (self.x, self.y))


pygame.init()
screen = pygame.display.set_mode((640, 400))

player = Player() 
clock = pygame.time.Clock()

running = True
while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()      # quit the screen
            running = False

    player.handle_keys()       # movement keys

    screen.fill((255,255,255)) # fill the screen with white
    player.draw(screen)        # draw the player to the screen
    pygame.display.update()    # update the screen

    clock.tick(60)             # Limits Frames Per Second to 60 or less

Answer 1

当玩家实例化时，我会做图像处理的东西：

class Player(object):  
    def __init__(self):
        self.image = pygame.image.load("player1.png")
        self.image2 = pygame.transform.flip(self.image, True, False)
        self.flipped = False
        self.x = 0
        self.y = 0

处理键会改变self.flipped的状态。

    if key[pygame.K_RIGHT]: 
        self.x += dist
        self.flipped = False
    elif key[pygame.K_LEFT]:
        self.x -= dist
        self.flipped = True

然后self.draw决定显示哪个图像。

def draw(self, surface):
    if self.flipped:
        image = self.image2
    else:
        image = self.image
    surface.blit(image, (self.x, self.y))

这是我对所有动画游戏对象采用的方法。

Pygame：水平翻转

1 个答案: