Javascriptでオセロ(その2)

前回に引き続き、不足していた機能を追加してみた。

完成品

こんな感じのオセロが完成。申し訳程度の対AIもサポート

ソースコード

// define constant value
var BOARD_SIZE = {
    'WIDTH' :8,
    'HEIGHT':8,
};

var BLOCK_KIND = {
    'NONE'   : 0,
    'BLACK'  : 1,
    'WHITE'  : 2,
    'MAX'    : 3,
};

var SQUARE_SIZE = {
    'WIDTH'  : 31,
    'HEIGHT' : 31,
};

var SLEEP_KIND = {
    'TURNOVER'  : 1000,
};

var isComputer = false;
var isFirst = false;
var stone;
var board = [];
var player_color;

var getCountIsPossibleToTurnOver = function(x, y, dx, dy) {

    var count = 0;
    var cx = x + dx;
    var cy = y + dy;

    if (( cx < 0 || BOARD_SIZE.WIDTH < cx) ||
        ( cy < 0 || BOARD_SIZE.HEIGHT < cy)) {

        return 0;
    }

    while(board[cx][cy] == BLOCK_KIND.MAX - player_color) {
        count++;
        cx += dx;
        cy += dy;

        if (( cx < 0 || BOARD_SIZE.WIDTH < cx) ||
            ( cy < 0 || BOARD_SIZE.HEIGHT < cy)) {

            return 0;
        }
    }

    if (count > 0 && board[cx][cy] == player_color) {
        return count;
    }

    return 0;
};

var turnOverStraight = function(x, y, dx, dy) {

    var cx = x + dx;
    var cy = y + dy;

    while(board[cx][cy] == BLOCK_KIND.MAX - player_color) {
        board[cx][cy] = player_color;
        cx += dx;
        cy += dy;
    }
};

var turnOverBlock = function(x, y, flip) {

    var total = 0;

    // can not put block
    if (board[x][y] != BLOCK_KIND.NONE) {
        return total;
    }
    
    // check for 8 direction whether it is possible to turn over block
    for (var dx = -1; dx <= 1; dx++) {
        for(var dy = -1; dy <= 1; dy++) {

            if (dx == 0 && dy == 0) {
                continue;
            }
            
            var cnt = getCountIsPossibleToTurnOver(x, y, dx, dy);
            if (cnt > 0) {
                total += cnt;
                if (flip) {
                    turnOverStraight(x, y, dx, dy);
                }
            }
        }
    }

    return total;
};

var showBoard = function() {

    var b = document.getElementById("board");

    while(b.firstChild) {
        b.removeChild(b.firstChild);
    }
    
    for(var y = 0; y < BOARD_SIZE.HEIGHT; y++) {
        for(var x = 0; x < BOARD_SIZE.WIDTH; x++) {
            var square = stone[board[x][y]].cloneNode(true);
            
            square.style.left = ((x) * SQUARE_SIZE.WIDTH) + "px"; 
            square.style.top = ((y) * SQUARE_SIZE.HEIGHT) + "px"; 
            b.appendChild(square);
            
            (function() {
                var _x = x;
                var _y = y;
                square.onclick = function() {
                    if (turnOverBlock(_x, _y, true) > 0) {
                        board[_x][_y] = player_color;
                        showBoard();
                        if (!changePlayer()) {
                            doAiPlayer();
                        } 
                    }
                };
            })();
        }
    }

    showProgress();
};

var showProgress = function() {

    var black = 0;
    var white = 0;

    for(var y = 0; y < BOARD_SIZE.HEIGHT; y++) {
        for(var x = 0; x < BOARD_SIZE.WIDTH; x++) {
            if (board[x][y] == BLOCK_KIND.BLACK) {
                black++;
            } else if (board[x][y] == BLOCK_KIND.WHITE) {
                white++;
            } else {
                // no opereation
            }
        }
    }

    var msg = document.getElementById("msg");
    
    msg.innerHTML = "progress of territory  black:"+black+" white:"+white;
};

var changePlayer = function() {
    
    var pass = false;

    player_color = BLOCK_KIND.MAX - player_color;

    if (isPass()) {
        if(player_color == BLOCK_KIND.BLACK) {
            alert("Black is pass");
        } else if (player_color == BLOCK_KIND.WHITE) {
            alert("White is pass");
        } else {
            alert("invalid status");
        }
        
        player_color = BLOCK_KIND.MAX - player_color;

        if(isPass()) {
            alert("Game set");
        }

        pass = true;
    }

    return pass;
};

var doAiPlayer = function() {

    if(!isComputer) {
        return false;
    }

    if( (isFirst && (player_color == BLOCK_KIND.BLACK)) ||
        (!isFirst && (player_color == BLOCK_KIND.WHITE)) ) {
        return false;
    }

    for(var y = 0; y < BOARD_SIZE.HEIGHT; y++) {
        for(var x = 0; x < BOARD_SIZE.WIDTH; x++) {
            
            if (turnOverBlock(x, y, true) > 0) {
                board[x][y] = player_color;
                showBoard();
                if(changePlayer()) {
                    doAiPlayer();
                }
                return true;
            }
        }
    }
    
    return false;
};

var isPass = function() {
    
    for(var y = 0; y < BOARD_SIZE.HEIGHT; y++) {
        for(var x = 0; x < BOARD_SIZE.WIDTH; x++) {
            
            if (turnOverBlock(x, y, false) > 0) {
                return false;
            }
        }
    }

    return true;
};

var msleep = function(ms) {

    var d1 = new Date().getTime();
    var d2 = new Date().getTime();
    while ( d2 < (d1 + ms) ) {
        d2 = new Date().getTime();
    }
};

var initBoard = function() {

    player_color = BLOCK_KIND.BLACK;

    // 0:none, 1:black, 2:white
    stone = [
        document.getElementById("none"),
        document.getElementById("black"),
        document.getElementById("white")
    ];

    // init zero value
    for (var i = 0; i < BOARD_SIZE.HEIGHT+1; i++) {
        board[i] = [];
        for (var j = 0; j < BOARD_SIZE.WIDTH+1; j++) {
            board[i][j] = BLOCK_KIND.NONE;
        }
    }

    // initial position
    board[3][4] = BLOCK_KIND.BLACK;
    board[4][3] = BLOCK_KIND.BLACK;
    board[3][3] = BLOCK_KIND.WHITE;
    board[4][4] = BLOCK_KIND.WHITE;

};

onload = function() {
    // just in case
    Object.freeze(BLOCK_KIND);
    Object.freeze(BOARD_SIZE);
    Object.freeze(SQUARE_SIZE);
    
    // initialize board
    initBoard();
    // start game
    showBoard();
};

var OnClickButton = function() {
    if(document.form1.Computer.checked) {
        isComputer = true;
    } else {
        isComputer = false;
    }
    
    if(document.form1.First.checked) {
        isFirst = true;
    } else {
        isFirst = false;
    }

    // initialize board
    initBoard();

    // start game
    showBoard();

    if(!isFirst) {
        doAiPlayer();
    }
};

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// define constant value

var BOARD_SIZE = {

'WIDTH' :8,

'HEIGHT':8,

};

var BLOCK_KIND = {

'NONE' : 0,

'BLACK' : 1,

'WHITE' : 2,

'MAX' : 3,

};

var SQUARE_SIZE = {

'WIDTH' : 31,

'HEIGHT' : 31,

};

var SLEEP_KIND = {

'TURNOVER' : 1000,

};

var isComputer = false;

var isFirst = false;

var stone;

var board = [];

var player_color;

var getCountIsPossibleToTurnOver = function(x, y, dx, dy) {

var count = 0;

var cx = x + dx;

var cy = y + dy;

if (( cx < 0 || BOARD_SIZE.WIDTH < cx) ||

( cy < 0 || BOARD_SIZE.HEIGHT < cy)) {

return 0;

}

while(board[cx][cy] == BLOCK_KIND.MAX - player_color) {

count++;

cx += dx;

cy += dy;

if (( cx < 0 || BOARD_SIZE.WIDTH < cx) ||

( cy < 0 || BOARD_SIZE.HEIGHT < cy)) {

return 0;

}

if (count > 0 && board[cx][cy] == player_color) {

return count;

}

return 0;

};

var turnOverStraight = function(x, y, dx, dy) {

var cx = x + dx;

var cy = y + dy;

while(board[cx][cy] == BLOCK_KIND.MAX - player_color) {

board[cx][cy] = player_color;

cx += dx;

cy += dy;

}

};

var turnOverBlock = function(x, y, flip) {

var total = 0;

// can not put block

if (board[x][y] != BLOCK_KIND.NONE) {

return total;

}

// check for 8 direction whether it is possible to turn over block

for (var dx = -1; dx <= 1; dx++) {

for(var dy = -1; dy <= 1; dy++) {

if (dx == 0 && dy == 0) {

continue;

}

var cnt = getCountIsPossibleToTurnOver(x, y, dx, dy);

if (cnt > 0) {

total += cnt;

if (flip) {

turnOverStraight(x, y, dx, dy);

}

return total;

};

var showBoard = function() {

var b = document.getElementById("board");

while(b.firstChild) {

b.removeChild(b.firstChild);

}

for(var y = 0; y < BOARD_SIZE.HEIGHT; y++) {

for(var x = 0; x < BOARD_SIZE.WIDTH; x++) {

var square = stone[board[x][y]].cloneNode(true);

square.style.left = ((x) * SQUARE_SIZE.WIDTH) + "px";

square.style.top = ((y) * SQUARE_SIZE.HEIGHT) + "px";

b.appendChild(square);

(function() {

var _x = x;

var _y = y;

square.onclick = function() {

if (turnOverBlock(_x, _y, true) > 0) {

board[_x][_y] = player_color;

showBoard();

if (!changePlayer()) {

doAiPlayer();

}

};

})();

}

showProgress();

};

var showProgress = function() {

var black = 0;

var white = 0;

for(var y = 0; y < BOARD_SIZE.HEIGHT; y++) {

for(var x = 0; x < BOARD_SIZE.WIDTH; x++) {

if (board[x][y] == BLOCK_KIND.BLACK) {

black++;

} else if (board[x][y] == BLOCK_KIND.WHITE) {

white++;

} else {

// no opereation

}

var msg = document.getElementById("msg");

msg.innerHTML = "progress of territory black:"+black+" white:"+white;

};

var changePlayer = function() {

var pass = false;

player_color = BLOCK_KIND.MAX - player_color;

if (isPass()) {

if(player_color == BLOCK_KIND.BLACK) {

alert("Black is pass");

} else if (player_color == BLOCK_KIND.WHITE) {

alert("White is pass");

} else {

alert("invalid status");

}

player_color = BLOCK_KIND.MAX - player_color;

if(isPass()) {

alert("Game set");

}

pass = true;

}

return pass;

};

var doAiPlayer = function() {

if(!isComputer) {

return false;

}

if( (isFirst && (player_color == BLOCK_KIND.BLACK)) ||

(!isFirst && (player_color == BLOCK_KIND.WHITE)) ) {

return false;

}

for(var y = 0; y < BOARD_SIZE.HEIGHT; y++) {

for(var x = 0; x < BOARD_SIZE.WIDTH; x++) {

if (turnOverBlock(x, y, true) > 0) {

board[x][y] = player_color;

showBoard();

if(changePlayer()) {

doAiPlayer();

}

return true;

}

return false;

};

var isPass = function() {

for(var y = 0; y < BOARD_SIZE.HEIGHT; y++) {

for(var x = 0; x < BOARD_SIZE.WIDTH; x++) {

if (turnOverBlock(x, y, false) > 0) {

return false;

}

return true;

};

var msleep = function(ms) {

var d1 = new Date().getTime();

var d2 = new Date().getTime();

while ( d2 < (d1 + ms) ) {

d2 = new Date().getTime();

}

};

var initBoard = function() {

player_color = BLOCK_KIND.BLACK;

// 0:none, 1:black, 2:white

stone = [

document.getElementById("none"),

document.getElementById("black"),

document.getElementById("white")

];

// init zero value

for (var i = 0; i < BOARD_SIZE.HEIGHT+1; i++) {

board[i] = [];

for (var j = 0; j < BOARD_SIZE.WIDTH+1; j++) {

board[i][j] = BLOCK_KIND.NONE;

}

// initial position

board[3][4] = BLOCK_KIND.BLACK;

board[4][3] = BLOCK_KIND.BLACK;

board[3][3] = BLOCK_KIND.WHITE;

board[4][4] = BLOCK_KIND.WHITE;

};

onload = function() {

// just in case

Object.freeze(BLOCK_KIND);

Object.freeze(BOARD_SIZE);

Object.freeze(SQUARE_SIZE);

// initialize board

initBoard();

// start game

showBoard();

};

var OnClickButton = function() {

if(document.form1.Computer.checked) {

isComputer = true;

} else {

isComputer = false;

}

if(document.form1.First.checked) {

isFirst = true;

} else {

isFirst = false;

}

// initialize board

initBoard();

// start game

showBoard();

if(!isFirst) {

doAiPlayer();

}

};

完成品

ソースコード

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