js implementiert die gemeinsame Nutzung von Backgammon-Code-js-Tutorial-php.cn

js implementiert die gemeinsame Nutzung von Backgammon-Code

小云云

Freigeben： 2018-02-27 13:54:24

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Dieser Artikel teilt Ihnen hauptsächlich den JS-Code mit, um Backgammon zu implementieren, das Schachbrett und die Schachfiguren durch die Leinwand zu zeichnen und die Logik durch JS-Code zu implementieren.

index.html-Code:

<!DOCTYPE html><html><head>
    <meta charset="utf-8">
    <title>五子棋</title>
    <link rel="stylesheet" type="text/css" href="css/style.css"></head><body>
    <canvas id="chess" width="450px" height="450px"></canvas>
    <p id=&#39;restart&#39; class="restart">
            <span>重新开始</span>
        </p>
    <script type="text/javascript" src="js/script.js"></script></body></html>

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style.css-Code:

canvas{    display: block;    margin: 50px auto;    box-shadow: -2px -2px 2px #EFEFEF, 5px 5px 5px #B9B9B9;}.restart{    text-align: center;}.restart>span{    display: inline-block;    padding: 10px 20px;    color: #fff;    background-color: #C92027;    border-radius: 5px;}

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Skript .js-Code:

//判断是否结束var over = false;//判断落子方var me = true; //我var chressBord = [];//棋盘for(var i = 0; i < 15; i++){
    chressBord[i] = [];    for(var j = 0; j < 15; j++){
        chressBord[i][j] = 0;
    }
}//赢法的统计数组var myWin = [];var computerWin = [];//赢法数组var wins = [];for(var i = 0; i < 15; i++){
    wins[i] = [];    for(var j = 0; j < 15; j++){
        wins[i][j] = [];
    }
}var count = 0; //赢法总数//横线赢法for(var i = 0; i < 15; i++){    for(var j = 0; j < 11; j++){        for(var k = 0; k < 5; k++){
            wins[i][j+k][count] = true;
        }
        count++;
    }
}//竖线赢法for(var i = 0; i < 15; i++){    for(var j = 0; j < 11; j++){        for(var k = 0; k < 5; k++){
            wins[j+k][i][count] = true;
        }
        count++;
    }
}//正斜线赢法for(var i = 0; i < 11; i++){    for(var j = 0; j < 11; j++){        for(var k = 0; k < 5; k++){
            wins[i+k][j+k][count] = true;
        }
        count++;
    }
}//反斜线赢法for(var i = 0; i < 11; i++){    for(var j = 14; j > 3; j--){        for(var k = 0; k < 5; k++){
            wins[i+k][j-k][count] = true;
        }
        count++;
    }
}for(var i = 0; i < count; i++){
    myWin[i] = 0;
    computerWin[i] = 0;
}//获得canvas对象var chess = document.getElementById("chess");var context = chess.getContext(&#39;2d&#39;);

context.strokeStyle = &#39;#bfbfbf&#39;; //边框颜色var logo = new Image();
logo.src = &#39;images/logo.jpg&#39;;
logo.onload  = function(){
    context.drawImage(logo,0,0,450,450);
    drawChessBoard();
}

document.getElementById("restart").onclick = function(){
    window.location.reload();
}
chess.onclick = function(e){
    if(over){        return;
    }    if(!me){        return;
    }    var x = e.offsetX;    var y = e.offsetY;    var i = Math.floor(x / 30);    var j = Math.floor(y / 30);    if(chressBord[i][j] == 0){
        oneStep(i,j,me);
        chressBord[i][j] = 1;//我        

        for(var k = 0; k < count; k++){            if(wins[i][j][k]){
                myWin[k]++;
                computerWin[k] = 6;//这个位置对方不可能赢了
                if(myWin[k] == 5){
                    window.alert(&#39;你赢了&#39;);
                    over = true;
                }
            }
        }        if(!over){
            me = !me;
            computerAI();
        }
    }

}//计算机下棋var computerAI = function (){
    var myScore = [];    var computerScore = [];    var max = 0;    var u = 0, v = 0;    for(var i = 0; i < 15; i++){
        myScore[i] = [];
        computerScore[i] = [];        for(var j = 0; j < 15; j++){
            myScore[i][j] = 0;
            computerScore[i][j] = 0;
        }
    }    for(var i = 0; i < 15; i++){        for(var j = 0; j < 15; j++){            if(chressBord[i][j] == 0){                for(var k = 0; k < count; k++){                    if(wins[i][j][k]){                        if(myWin[k] == 1){
                            myScore[i][j] += 200;
                        }else if(myWin[k] == 2){
                            myScore[i][j] += 400;
                        }else if(myWin[k] == 3){
                            myScore[i][j] += 2000;
                        }else if(myWin[k] == 4){
                            myScore[i][j] += 10000;
                        }                        if(computerWin[k] == 1){
                            computerScore[i][j] += 220;
                        }else if(computerWin[k] == 2){
                            computerScore[i][j] += 420;
                        }else if(computerWin[k] == 3){
                            computerScore[i][j] += 2100;
                        }else if(computerWin[k] == 4){
                            computerScore[i][j] += 20000;
                        }                        
                    }
                }                if(myScore[i][j] > max){
                    max  = myScore[i][j];
                    u = i;
                    v = j;
                }else if(myScore[i][j] == max){                    if(computerScore[i][j] > computerScore[u][v]){
                        u = i;
                        v = j;    
                    }
                }                if(computerScore[i][j] > max){
                    max  = computerScore[i][j];
                    u = i;
                    v = j;
                }else if(computerScore[i][j] == max){                    if(myScore[i][j] > myScore[u][v]){
                        u = i;
                        v = j;    
                    }
                }

            }
        }
    }
    oneStep(u,v,false);
    chressBord[u][v] = 2;    for(var k = 0; k < count; k++){        if(wins[u][v][k]){
            computerWin[k]++;
            myWin[k] = 6;//这个位置对方不可能赢了
            if(computerWin[k] == 5){
                window.alert(&#39;计算机赢了&#39;);
                over = true;
            }
        }
    }    if(!over){
        me = !me;
    }
}//绘画棋盘var drawChessBoard = function(){
    for(var i = 0; i < 15; i++){
        context.moveTo(15 + i * 30 , 15);
        context.lineTo(15 + i * 30 , 435);
        context.stroke();
        context.moveTo(15 , 15 + i * 30);
        context.lineTo(435 , 15 + i * 30);
        context.stroke();
    }
}//画旗子var oneStep = function(i,j,me){
    context.beginPath();
    context.arc(15 + i * 30, 15 + j * 30, 13, 0, 2 * Math.PI);//画圆
    context.closePath();    //渐变
    var gradient = context.createRadialGradient(15 + i * 30 + 2, 15 + j * 30 - 2, 13, 15 + i * 30 + 2, 15 + j * 30 - 2, 0);    if(me){
        gradient.addColorStop(0,&#39;#0a0a0a&#39;);
        gradient.addColorStop(1,&#39;#636766&#39;);
    }else{
        gradient.addColorStop(0,&#39;#d1d1d1&#39;);
        gradient.addColorStop(1,&#39;#f9f9f9&#39;);
    }
    context.fillStyle = gradient;
    context.fill();
}

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