我在使用Python和Pygame编写以下代码时,遇到了渲染等角2D瓦片世界的一些问题:
'''
Map Rendering Demo
rendermap.py
By James Walker (trading as Ilmiont Software).
Copyright (C)Ilmiont Software 2013. All rights reserved.
This is a simple program demonstrating rendering a 2D map in Python with Pygame from a list of map data.
Support for isometric or flat view is included.
'''
import pygame
from pygame.locals import *
pygame.init()
DISPLAYSURF = pygame.display.set_mode((640, 480), DOUBLEBUF) #set the display mode, window title and FPS clock
pygame.display.set_caption('Map Rendering Demo')
FPSCLOCK = pygame.time.Clock()
map_data = [
[1, 1, 1, 1, 1],
[1, 0, 0, 0, 1],
[1, 0, 0, 0, 1],
[1, 0, 0, 0, 1],
[1, 0, 0, 0, 1],
[1, 1, 1, 1, 1]
] #the data for the map expressed as [row[tile]].
wall = pygame.image.load('wall.png').convert() #load images
grass = pygame.image.load('grass.png').convert()
tileWidth = 64 #holds the tile width and height
tileHeight = 64
currentRow = 0 #holds the current map row we are working on (y)
currentTile = 0 #holds the current tile we are working on (x)
for row in map_data: #for every row of the map...
for tile in row:
tileImage = wall
cartx = currentTile * 64 #x is the index of the currentTile * the tile width
print(cartx)
carty = currentRow * 64 #y is the index of the currentRow * the tile height
print(carty)
x = cartx - carty
print(x)
y = (cartx + carty) / 2
print(y)
print('\n\n')
currentTile += 1 #increase the currentTile holder so we know that we are starting rendering a new tile in a moment
DISPLAYSURF.blit(tileImage, (x, y)) #display the actual tile
currentTile = 0 #reset the current working tile to 0 (we're starting a new row remember so we need to render the first tile of that row at index 0)
currentRow += 1 #increment the current working row so we know we're starting a new row (used for calculating the y coord for the tile)
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
if event.type == KEYUP:
if event.key == K_ESCAPE:
pygame.quit()
sys.exit()
pygame.display.flip()
FPSCLOCK.tick(30)
使用的瓷砖尺寸为64x64;当运行上述代码时,会生成以下输出:
![enter image description here](https://istack.dev59.com/GYGD8.webp)
我已经尝试阅读一些在线教程,但似乎找不到一个真正用Python编写的教程,请告诉我我错在哪里。
提前致谢, Ilmiont