对象的广度优先遍历

发布于 2024-10-26 16:30:00 字数 744 浏览 3 评论 0原文

我正在编写一个解决益智游戏的程序，它会找到棋盘上所有可能的动作，并将所有可能的结果棋盘放入一个对象中。然后它会找到结果棋盘的所有可能的走法，依此类推。该对象看起来像这样：

{
  "board": {
      "starts": [[0,0],[0,3]],
      "blocks": [[3,0],[3,3]],
      "ends":   [[2,4]]
  },
  "possibleMoves": [
    {
      "board": {
        "starts": [[0,0],[2,3]],
        "blocks": [[3,0],[3,3]],
        "ends":   [[2,4]]
      },
      "possibleMoves":[
        {
          "board": {},
          "possibleMoves": [{}]
        }
      ]
    },
    {
      "board": {
        "starts": [[0,3]],
        "blocks": [[3,0],[3,3]],
        "ends":   [[2,4]]
      },
      "possibleMoves":[{}]
    }]
}

我可以弄清楚如何从顶层板上添加可能的移动，但我无法弄清楚如何循环遍历第二层中的所有结果板并找出它们可能的移动，并且然后循环遍历所有第三层板，依此类推。如何添加可能的移动并使用广度优先搜索遍历对象？

原文

I am making a program that solves a puzzle game, and it finds all the possible moves on a board and puts all the possible resulting boards in an object. Then it finds all the possible moves for the resulting boards, and so on. The object will look something like this:

{
  "board": {
      "starts": [[0,0],[0,3]],
      "blocks": [[3,0],[3,3]],
      "ends":   [[2,4]]
  },
  "possibleMoves": [
    {
      "board": {
        "starts": [[0,0],[2,3]],
        "blocks": [[3,0],[3,3]],
        "ends":   [[2,4]]
      },
      "possibleMoves":[
        {
          "board": {},
          "possibleMoves": [{}]
        }
      ]
    },
    {
      "board": {
        "starts": [[0,3]],
        "blocks": [[3,0],[3,3]],
        "ends":   [[2,4]]
      },
      "possibleMoves":[{}]
    }]
}

I can figure out how to add the possible moves from the top-level board, but I cannot figure out how to loop through all the resulting boards in the second level and figure out their possible moves, and then loop through all the third level boards and so on. How can I add the possible moves and traverse the object using a breadth-first search?

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海之角 2024-11-02 16:30:00

递归。

function traverse(state) {
    handle(state.board);
    if (state.possibleMoves) {
        $.each(state.possibleMoves, function(i, possibleMove) {
             traverse(possibleMove);
        });
    }
}

编辑：对于广度优先搜索，请尝试这样的操作。它不使用递归，而是迭代不断增长的队列。

function traverse(state) {
    var queue = [],
        next = state;
    while (next) {
        if (next.possibleMoves) {
            $.each(next.possibleMoves, function(i, possibleMove) {
                queue.push(possibleMove);
            });
        }
        next = queue.shift();
    }
}

Recursion.

function traverse(state) {
    handle(state.board);
    if (state.possibleMoves) {
        $.each(state.possibleMoves, function(i, possibleMove) {
             traverse(possibleMove);
        });
    }
}

EDIT: For a breadth-first search, try something like this. It doesn't use recursion, but instead iterates over a growing queue.

function traverse(state) {
    var queue = [],
        next = state;
    while (next) {
        if (next.possibleMoves) {
            $.each(next.possibleMoves, function(i, possibleMove) {
                queue.push(possibleMove);
            });
        }
        next = queue.shift();
    }
}

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七度光 2024-11-02 16:30:00

未完全测试：

var oo = {
    board: {
        starts: [[0,0],[0,3]],
        blocks: [[3,0],[3,3]],
        ends:   [[2,4]]
    },
    possibleMoves: [{
        board: {
            starts: [[0,0],[2,3]],
            blocks: [[3,0],[3,3]],
            ends:   [[2,4]]
        },
    }],
};


function traverseObject (o) {
    for (var prop in o) {
        if (typeof o[prop] == "array" || typeof o[prop] == "object") {
            traverseObject(o[prop]);
            console.log(prop);
        } else {
            console.log(prop, "=", o[prop]);
        }
    }
}

traverseObject(oo);

Not completely tested:

var oo = {
    board: {
        starts: [[0,0],[0,3]],
        blocks: [[3,0],[3,3]],
        ends:   [[2,4]]
    },
    possibleMoves: [{
        board: {
            starts: [[0,0],[2,3]],
            blocks: [[3,0],[3,3]],
            ends:   [[2,4]]
        },
    }],
};


function traverseObject (o) {
    for (var prop in o) {
        if (typeof o[prop] == "array" || typeof o[prop] == "object") {
            traverseObject(o[prop]);
            console.log(prop);
        } else {
            console.log(prop, "=", o[prop]);
        }
    }
}

traverseObject(oo);

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