Question

我正在制作国际象棋游戏。我达到了一个需要在函数内部更改4个变量的点，所以下次运行函数时，变量会有所不同。下面我有看看所需的代码：

函数piecesRotation将所有棋子的位置颠倒，以便其他玩家可以玩。

使用Javascript：

function piecesRotation(){
    //rotate the pieces
}

function check(el){

    //there variables indicate which user turn is it
    var FirstCurrentPlayersPiece = "B";
    var CurrentPlayersPieceColor = "black";
    var FirstOpponentsPieceLetter = "W";
    var OpponentsPieceColor = "white";
    //If player played then run the function below to change the position of the pieces and change the 4 variables so the other player will play
    piecesRotation();
    FirstCurrentPlayersPiece = "W";
    CurrentPlayersPieceColor = "white";
    FirstOpponentsPieceLetter = "B";
    OpponentsPieceColor = "black";
}

在HTML上我调用函数check（el），其中el是玩家点击的elepemt。

为了说明，我需要以某种方式改变这些变量：

var FirstCurrentPlayersPiece = "B";
var CurrentPlayersPieceColor = "black";
var FirstOpponentsPieceLetter = "W";
var OpponentsPieceColor = "white";

对此：

var FirstCurrentPlayersPiece = "W";
var CurrentPlayersPieceColor = "white";
var FirstOpponentsPieceLetter = "B";
var OpponentsPieceColor = "black";

每次玩家玩游戏时都会发生这些变量的变化。有办法吗？

重要 英语不是我的第一语言，这就是我为什么不好的原因。

NOTE1 我没有提供整个代码的原因是因为它是巨大的而且Stack溢出不允许我粘贴它。

注2 我很蠢。我不得不使用全局变量（因为我认为它们是不好的做法，它是唯一的解决方案。

Answer 1

只需将变量放在一个对象中并将它们传递给函数

即可

var boardState = {
        FirstCurrentPlayersPiece : "B",
        CurrentPlayersPieceColor : "black",
        FirstOpponentsPieceLetter: "W",
        OpponentsPieceColor: "white"
}

function piecesRotation(){       
    boardState =  {
            FirstCurrentPlayersPiece : boardState.FirstOpponentsPieceLetter,
            CurrentPlayersPieceColor : boardState.OpponentsPieceColor,
            FirstOpponentsPieceLetter: boardState.FirstCurrentPlayersPiece,
            OpponentsPieceColor: boardState.CurrentPlayersPieceColor
    }
}


function check(el){
    piecesRotation();
}

下次调用时更改函数内的变量？

1 个答案: