播放移动时Python程序没有响应

Question

我正在用libtcod在python中编写一个roguelike。在我切换到对象定向之前，移动效果很好。当我运行我的python游戏时，它会弹出，但当我试图移动玩家时，它就会冻结。这是我的代码：

import libtcodpy as libtcod;
SCREEN_WIDTH = 80;
SCREEN_HEIGHT = 50;
LIMIT_FPS = 20;
class Object:
    def __init__(self, x, y, char, color):
        self.x = x
        self.y = y
        self.char = char
        self.color = color
    def move(self, dx, dy):
        self.x = dx
        self.y = dy
    def draw(self):
        #libtcod.console_set_default_foreground(con, self.color)
        libtcod.console_put_char(con, self.x, self.y, self.char, libtcod.BKGND_NONE)
    def clear(self):
        libtcod.console_put_char(con, self.x, self.y, ' ', libtcod.BKGND_NONE)
def handle_keys():
    key = libtcod.console_check_for_keypress()
    if key.vk == libtcod.KEY_ENTER and key.lalt:
        libtcod.console_set_fullscreen(not libtcod.console_is_fullscreen())
    elif key.vk == libtcod.KEY_ESCAPE:
        return True  #exit game
    if libtcod.console_is_key_pressed(libtcod.KEY_UP):
        player.move(0, -1)
    elif libtcod.console_is_key_pressed(libtcod.KEY_DOWN):
        player.move(0, 1)
    elif libtcod.console_is_key_pressed(libtcod.KEY_LEFT):
        player.move(-1, 0)
    elif libtcod.console_is_key_pressed(libtcod.KEY_RIGHT):
        player.move(1, 0)
libtcod.console_set_custom_font('arial10x10.png', libtcod.FONT_TYPE_GREYSCALE | libtcod.FONT_LAYOUT_TCOD);
libtcod.console_init_root(SCREEN_WIDTH, SCREEN_HEIGHT, 'Lets Crawl', False);
libtcod.sys_set_fps(LIMIT_FPS);
con = libtcod.console_new(SCREEN_WIDTH, SCREEN_HEIGHT)
player = Object(SCREEN_WIDTH/2, SCREEN_HEIGHT/2, '@', libtcod.white)
#npc = Object(SCREEN_WIDTH/2 - 5, SCREEN_HEIGHT/2, '@', libtcod.yellow)
objects = [player]
while not libtcod.console_is_window_closed():
    for object in objects:
        object.draw()

    #libtcod.console_check_for_keypress()
    libtcod.console_blit(con, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT, 0, 0, 0)
    libtcod.console_flush();
    for object in objects:
        object.clear()
    exit = handle_keys()
    if exit:
        break

这可能与while循环和运动有关。。。我不知道

Answer 1

也许不是

def move(self, dx, dy):
    self.x = dx
    self.y = dy

你想要

def move(self, dx, dy):
    self.x += dx
    self.y += dy

否则，如果按KEY_LEFT，则只需将播放器的位置设置为(-1, 0)（屏幕外）。也许这就是你认为它被冻结的原因。

除此之外，您的代码对我来说运行良好。