python - 有没有更好的方法在 pygame 中创建瓦片 map ？

Question

当我尝试 block 传输图 block 时，它显示“列表索引超出范围”。我不知道该怎么做，因为我对此很陌生。

错误消息:

window.blit(tilemap.textures[tilemap.tilemap[row][column]], (columntilemap.tilesize, rowtilemap.tilesize)) IndexError: list index out of range

我尝试更改 mapwidth 和 mapheight 的值，但这并没有成功。我有2个脚本。主要和瓦片映射。因此可能会出现错误。注意(我已经在完整代码中初始化了 pygame，所以这不是问题)

main.py

import pygame as pg

# Importing files
import constants
import classes
import tilemap

# Functions
def draw_game():
    """ This function draws everything on the screen """

    global window, clock

    # The background
    window.blit(constants.img_background, (0, 0))

    # Tiles
    for row in range(tilemap.mapheight):

        for column in range(tilemap.mapwidth):

            window.blit(tilemap.textures[tilemap.tilemap[row][column]], (column*tilemap.tilesize, row*tilemap.tilesize))




    # Updating
    clock.tick(60)
    pg.display.update()

tilemap.py

import pygame as pg
import constants

GRASS = 0
WATER = 1




textures = {
    GRASS : pg.image.load("image\\grass.png"),
    WATER : pg.image.load("image\\water.png")

    }


tilemap = [
    [GRASS, GRASS, GRASS, WATER],
    [GRASS, GRASS, WATER, GRASS],
    [GRASS, WATER, GRASS, GRASS],
    [WATER, GRASS, GRASS, GRASS]    
    ]



tilesize = 40
mapwidth = 2
mapheight = 5

Answer 1

tilemap 是一个列表。该列表有 4 个元素，列表中的每个元素也是一个有 4 个元素的列表。

 tilemap = [
       [GRASS, GRASS, GRASS, WATER],
       [GRASS, GRASS, WATER, GRASS],
       [GRASS, WATER, GRASS, GRASS],
       [WATER, GRASS, GRASS, GRASS]
    ]

所以tilemap的“宽度”和“高度”是4:

mapwidth = 4
mapheight = 4

但是你根本不需要这些变量，因为你可以通过 len() 获得列表的长度:

for row in range( len(tilemap.tilemap) ):

    for column in range( len(tilemap.tilemap[row]) ):

        window.blit(tilemap.textures[tilemap.tilemap[row][column]],
                    (column*tilemap.tilesize, row*tilemap.tilesize))

<小时/>

如果你想在 map 上放置更多的图 block ，那么向tilemap添加更多的图 block 就足够了:

例如

tilemap = [
       [WATER, WATER, WATER, WATER, WATER, WATER],
       [WATER, GRASS, GRASS, GRASS, WATER, WATER],
       [WATER, GRASS, GRASS, WATER, GRASS, WATER],
       [WATER, GRASS, WATER, GRASS, GRASS, WATER],
       [WATER, WATER, GRASS, GRASS, GRASS, WATER],
       [WATER, WATER, WATER, WATER, WATER, WATER]
    ]
mapwidth = len(tilemap.tilemap)
mapheight = len(tilemap.tilemap[0])