全局數組被覆蓋而沒有重新分配它

Question

我試圖使用洪水填充，但只有一定距離（包括對角線）。洪水工作正常（可能不完美）。但是在每次移動之後，我都會補充/向下/向左/向右重新繪製棋盤。但相反，它正在重繪上一屆董事會，並且正在改變應該永不改變的全球董事會。

我嘗試了一些分配新鮮板不同的方式調用汛前，但似乎沒有什麼改變結果。我的猜測是它與

board = gameBoard[:] 

在gameFlow（）函數中。但我不知道那是爲什麼。 我在閱讀了其他stack exchange post之後使用了[：]，但似乎沒有解決問題。從我留在打印報表

輸出實例：

GameBoard 
######### 
#..  # 
#..  # 
#  # 
#   
#  # 
#  # 
#  # 
######### 
LightBoard 
######### 
#..  # 
#..  # 
#  # 
#   
#  # 
#  # 
#  # 
######### 

只有輕質條板應萬變，而遊戲板保持不變。

代碼：

import random 

#Sample Game Board 
gameBoard = [ 
      ["#","#","#","#","#","#","#", "#", "#"], 
      ["#"," "," "," "," "," "," ", " ", "#"], 
      ["#"," "," "," "," "," "," ", " ", "#"], 
      ["#"," "," "," "," "," "," ", " ", "#"], 
      ["#"," "," "," "," "," "," ", " ", " "], 
      ["#"," "," "," "," "," "," ", " ", "#"], 
      ["#"," "," "," "," "," "," ", " ", "#"], 
      ["#"," "," "," "," "," "," ", " ", "#"], 
      ["#","#","#","#","#","#","#", "#", "#"] 
      ] 

#Defining globals 
currentPlayerX = -1 
currentPlayerY = -1 
lightRadiusMax = -1 

#function flood 
#Params: 
# lightBoard: array, starts off empty 
# x: int, current x position to check, starts off as players starting x 
# y: int, current y position to check, starts off as players starting y 
# oldChard: char, character to replace 
# fillChar: char, character to replace with 
#Return: 
# returns the completed lightBoard 
def flood(lightBoard, x, y, oldChar, fillChar): 
    global currentPlayerX 
    global currentPlayerY 
    global lightRadiusMax 
    global gameBoard 
    width = len(gameBoard[0]) 
    height = len(gameBoard) 

    if gameBoard[y][x] == " ": 
      oldChar = lightBoard[y][x] 
    if gameBoard[y][x] == oldChar: 
     if (lightRadiusMax >= abs(currentPlayerX-x)) and (lightRadiusMax >= abs(currentPlayerY-y)): 
      lightBoard[y][x] = fillChar 
      if (lightRadiusMax == abs(currentPlayerX-x)) and (lightRadiusMax == abs(currentPlayerY-y)): 
       flood(lightBoard, x+1, y+1, oldChar, fillChar) 
      if x > 0: 
       flood(lightBoard, x-1, y, oldChar, fillChar) 
      if y > 0: 
       flood(lightBoard, x, y-1, oldChar, fillChar) 
      if x < width-1: 
       flood(lightBoard, x+1, y, oldChar, fillChar) 
      if y < height-1: 
       flood(lightBoard, x, y+1, oldChar, fillChar) 
    print("GameBoard") 
    for row in gameBoard: 
       for item in row: 
        print(item,end="") 
       print("") 
    print("LightBoard") 
    for row in lightBoard: 
       for item in row: 
        print(item,end="") 
       print("") 
    return lightBoard 


def gameFlow(): 
    global currentPlayerX 
    global currentPlayerY 
    global gameBoard 
    while(1): 
     board = gameBoard[:] 
     board = flood(board, currentPlayerX, currentPlayerY, None, ".") 
     board[currentPlayerY][currentPlayerX] = "@" 
     for row in board: 
       for item in row: 
        print(item,end="") 
       print("") 
     moveDirection = input("What would you like to do?\nMove (N,S,E,W) or (Q)uit: ") 
     moveDirection = moveDirection.lower() 
     if moveDirection == "n": 
      currentPlayerY -= 1 
     if moveDirection == "s": 
      currentPlayerY += 1 
     if moveDirection == "e": 
      currentPlayerX += 1 
     if moveDirection == "w": 
      currentPlayerX -= 1 
     if moveDirection == "q": 
      print("Thanks for playing!") 
      exit(0) 


def startGame(): 
    global currentPlayerX 
    global currentPlayerY 
    global lightRadiusMax 
    #randXStart = random.randint(1, len(gameBoard[0])-2) 
    #randYStart = random.randint(1, len(gameBoard)-2) 
    currentPlayerX = 1 
    currentPlayerY = 1 
    print(currentPlayerX) 
    print(currentPlayerY) 
    lightRadiusMax = int(input("Enter your light radius: ")) 
    gameFlow() 

startGame() 

貸inventwithpython.com教我洪災的基本填補

Answer 1

我認爲你正在尋找這一點，它會讓所有元素，而不僅僅是一個副本參考文獻的副本。 試圖在你的代碼（用「板= copy.deepcopy（遊戲鍵盤）」代替線70，現在的遊戲鍵盤不留空白的第一次迭代。

import copy 
board = copy.deepcopy(gameBoard) 

兩者都在你參考答案居然提到！到