如何找到隨機生成的位置旁邊的位置

Question

我正在開發一個迷宮生成器，主要使用隨機模塊並在網格上生成圖塊。 現在我正試圖防止 2 x 2s，因為我認為這是浪費空間但是如果我嘗試計算我創建的隨機圖塊旁邊的位置，我會得到一個“列表索引超出范圍”錯誤

    import random

    end = 90
    i = 0
    while i < end:
        RandomRow = random.randint(0, MazeSize - 1)
        RandomColumn = random.randint(0, MazeSize - 1)
        Extra1 = RandomRow + 1
        Extra2 = RandomRow - 1
        Extra3 = RandomColumn + 1
        Extra4 = RandomColumn - 1

        if not Grid[RandomColumn][RandomRow]:
            if not Grid[RandomColumn][RandomRow + 1]:
                TempTile = MapTile('walls', RandomColumn, RandomRow)
                Grid[RandomColumn][RandomRow].append(TempTile)
        else:
            end += 1 
        i += 1

'RandomRow + 1' 是一個測試以及額外的 1、2、3 和 4，但它們都沒有工作

import pygame
import random
import time

pygame.init()
clock = pygame.time.Clock()
Screen = pygame.display.set_mode([710, 710])  
Done = False                                  
MazeSize = 10

TileWidth = 60
TileMargin = 10

BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
RED = (255, 0, 0)
BLUE = (0, 0, 255)

class MapTile(object):                       
    def __init__(self, Name, Column, Row):
        self.Name = Name
        self.Column = Column
        self.Row = Row


class Character(object):
    def __init__(self, Name, Column, Row):
        self.Name = Name
        self.Column = Column
        self.Row = Row

        Maze.update()
        

class Maze(object):              #The main class; where the action happens
    global MapSize

    Grid = [[None for col in range(11)] for row in range(11)]

# Creating grid

    for Row in range(MazeSize):     
        Grid.append([])
        for Column in range(MazeSize):
            Grid[Row].append([])          
            
#making walls

    end = 9
    i = 0
    while i < end:
        RandomRow = random.randint(0, MazeSize - 1)
        RandomColumn = random.randint(0, MazeSize - 1)
        Extra1 = RandomRow + 1
        Extra2 = RandomRow - 1
        Extra3 = RandomColumn + 1
        Extra4 = RandomColumn - 1

        if not Grid[RandomColumn][RandomRow]:
            if not Grid[RandomColumn][RandomRow + 1]:
                TempTile = 'x'
                Grid[RandomColumn][RandomRow] = (TempTile)
        else:
            end += 1 
        i += 1
            
#making the whole grid flat land
            
    for Row in range(MazeSize):     
        for Column in range(MazeSize):
            TempTile = MapTile('path', Column, Row)
            Grid[Column][Row] = (TempTile)

Maze = Maze()
run = True
while run:     

    for event in pygame.event.get():         
        if event.type == pygame.QUIT:
            run = False       

    Screen.fill(BLACK)

    for Row in range(MazeSize):           
        for Column in range(MazeSize):
            for i in range(1):
                Color = WHITE
                if len(Maze.Grid[Column][Row]) == 2:
                    Color = RED
                if len(Maze.Grid[Column][Row]) >= 3:
                    Color = BLUE
                    

            pygame.draw.rect(Screen, Color, [(TileMargin + TileWidth) * Column + TileMargin,
                                             (TileMargin + TileWidth) * Row + TileMargin,
                                             TileWidth,
                                             TileWidth])

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

pygame.quit()

這是整個代碼（問題在底部）當我開始更改網格時，我必須更改一些東西才能使其正常工作，但是現在我陷入了這個錯誤

Traceback（最近一次調用最后一次）：文件“C:\Users\faith\OneDrive\Desktop\websites\maze generator.py”，第 88 行，在 if len(Maze.Grid[Column][Row]) == 2 中： TypeError：“MapTile”類型的 object 沒有 len()

Answer 1

如果您嘗試在空列表上評估Grid[RandomColumn][RandomRow] ，則會收到IndexError: list index out of range 。

您可以使用填充為None的 10x10 數組啟動 Grid ：

Grid = [[None for col in range(10)] for row in range(10)]

這會給你一個結果（不確定它是否是你想要的）：

import random

MazeSize = 10
Grid = [[None for col in range(11)] for row in range(11)]

end = 90
i = 0
while i < end:
    RandomRow = random.randint(0, MazeSize - 1)
    RandomColumn = random.randint(0, MazeSize - 1)

    if not Grid[RandomColumn][RandomRow]:
        if not Grid[RandomColumn][RandomRow + 1]:
            TempTile = 'x'
            Grid[RandomColumn][RandomRow] = TempTile
    else:
        end += 1 
    i += 1
    
for i in Grid:
  print(i)