taizhimin
/
mgl_game


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1">
    <title>五道</title>
    <style>
        body {
            background-color: transparent;
        }

        canvas {
            display: block;
            margin: 50px auto;
            box-shadow: -2px -2px 2px #EFEFEF, 5px 5px 5px #B9B9B9;
            cursor: pointer;
        }
    </style>
</head>
<body>

<canvas id="chess" width="500px" height="500px">
</canvas>
<div id="round" style="margin: 50px auto;"></div>
</body>
<script>
    var chess = document.getElementById("chess");
    var context = chess.getContext('2d');
    var rect = chess.getBoundingClientRect();
    context.strokeStyle = '#bfbfbf';	//边框颜色
    var chressBord = []; //棋盘
    var whitechress = 10;
    var blackchress = 20;
    var whiteactive = 11;
    var blackactive = 21;
    var nochress = 0;
    var offset = 50;
    var lineSpace = 100;
    var chressSize = 30;
    var round = {};
    Object.defineProperties(round, {
        isWhite: {
            configurable: true,
            get: function () {
                return isWhite;
            },
            set: function (newValue) {
                isWhite = newValue;
                document.getElementById("round").innerText = newValue ? '白棋回合' : '黑棋回合';
            }
        }
    });
    round.isWhite = true;
    var activeChress = false;
    var ax;
    var ay;
    var ac;
    for (var x = 0; x < 5; x++) {
        chressBord[x] = [];
        for (var y = 0; y < 5; y++) {
            if (y == 0) {
                chressBord[x][y] = whitechress;
            } else if (y == 4) {
                chressBord[x][y] = blackchress;
            } else {
                chressBord[x][y] = nochress;
            }
        }
    }
    window.onload = function () {
        drawChessBoard(); // 画棋盘
        drawChress();//画棋子
        context.save();
    };

    chess.onclick = function (e) {
        let x = Math.floor(e.clientX - rect.left);
        let y = Math.floor(e.clientY - rect.top);
        let xx = Math.floor(Math.abs((x)) / lineSpace);
        let yy = Math.floor(Math.abs((y)) / lineSpace);
        if (activeChress) {
            //黑棋取消选中
            if (chressBord[xx][yy] == blackactive) {
                chressBord[xx][yy] = blackchress;
                activeChress = false;
                //白棋取消选中
            } else if (chressBord[xx][yy] == whiteactive) {
                chressBord[xx][yy] = whitechress;
                activeChress = false;
            } else if (chressBord[xx][yy] == blackchress) {
                chressBord[xx][yy] = blackactive;
                chressBord[ax][ay] = ac == whitechress ? whitechress : blackchress;
                activeChress = true;
                ac = blackchress;
                ax = xx;
                ay = yy;
            } else if (chressBord[xx][yy] === whitechress) {
                chressBord[xx][yy] = whiteactive;
                chressBord[ax][ay] = ac === whitechress ? whitechress : blackchress;
                activeChress = true;
                ac = whitechress;
                ax = xx;
                ay = yy;
            } else {
                console.info(round.isWhite);
                if (round.isWhite ^ (ac === whitechress)) {
                    //走棋  一次只能走一步
                    if (Math.abs(ax - xx) + Math.abs(ay - yy) === 1) {
                        chressBord[ax][ay] = nochress;
                        chressBord[xx][yy] = ac === whitechress ? whitechress : blackchress;
                        activeChress = false;
                        round.isWhite = !round.isWhite;
                        horizontalEat(xx, yy);
                    } else {
                        alert("一次只能走一步");
                    }
                } else {
                    alert("这回合不是你的回合");
                }
            }
        } else {
            //如果没有棋子选中，那么说明现在在选棋子
            //如果选中黑棋
            if (chressBord[xx][yy] == blackchress) {
                chressBord[xx][yy] = blackactive;
                activeChress = true;
                ac = blackchress;
                ax = xx;
                ay = yy;
            }
            //如果选中白棋
            if (chressBord[xx][yy] === whitechress) {
                chressBord[xx][yy] = whiteactive;
                activeChress = true;
                ac = whitechress;
                ax = xx;
                ay = yy;
            }
        }
        clearCanvas();
        drawChessBoard();
        drawChress();
    };
    //绘画棋盘
    var drawChessBoard = function () {
        for (var i = 0; i < 5; i++) {
            context.moveTo(offset + i * lineSpace, offset);
            context.lineTo(offset + i * lineSpace, 450);
            context.stroke();
            context.moveTo(offset, offset + i * lineSpace);
            context.lineTo(450, offset + i * lineSpace);
            context.stroke();
        }
    }

    function drawChress() {
        for (var x = 0; x < 5; x++) {
            for (var y = 0; y < 5; y++) {
                if (chressBord[x][y] == whitechress) {
                    oneStep(x, y, true, false);
                }
                if (chressBord[x][y] == blackchress) {
                    oneStep(x, y, false, false);
                }
                if (chressBord[x][y] == whiteactive) {
                    oneStep(x, y, true, true);
                }
                if (chressBord[x][y] == blackactive) {
                    oneStep(x, y, false, true);
                }
            }
        }
    }

    //画棋子
    var oneStep = function (i, j, isWhite, isActive) {
        context.beginPath();
        context.arc(offset + i * lineSpace, offset + j * lineSpace, chressSize, 0, 2 * Math.PI);// 画圆
        context.closePath();
        //渐变
        var gradient = context.createRadialGradient(offset + i * lineSpace
            + 2, offset + j * lineSpace - 2, chressSize, offset + i * lineSpace + 2, offset + j * lineSpace -
            2, 0);
        if (isWhite) {
            gradient.addColorStop(0, '#0a0a0a');
            gradient.addColorStop(1, '#636766');
        } else {
            gradient.addColorStop(0, '#d1d1d1');
            gradient.addColorStop(1, '#f9f9f9');
        }
        context.fillStyle = gradient;
        context.fill();
        context.restore();
        if (isActive) {
            context.rect(offset + i * lineSpace - chressSize,
                offset + j * lineSpace - chressSize,
                offset + i * lineSpace + chressSize - (offset + i * lineSpace - chressSize),
                offset + j * lineSpace + chressSize - (offset + j * lineSpace - chressSize));
            //context.setLineDash([5, 15, 5]);
            //context.lineCap = "round";
            context.stroke();
            context.restore();
        }
    };

    function clearCanvas() {
        //擦除该圆
        context.clearRect(0, 0, 500, 500);
        context.stroke();
        context.restore();
    }

    //检测横向吃子
    function horizontalEat(x, y) {
        if (chressBord[x][y] == whitechress) {
            let t1 = [0, 0, 10, 10, 20];
            let t2 = [0, 10, 10, 20, 0];
            let t3 = [10, 10, 20, 0, 0];
            let t4 = [20, 10, 10, 0, 0];
            let t5 = [0, 20, 10, 10, 0];
            let t6 = [0, 0, 20, 10, 10];
            if (chressBord[x] == t1) {
                console.log("ok");
            }
            //吃子状态
            //00 00 10 10 20
            //00 10 10 20 00
            //10 10 20 00 00
            //20 10 10 00 00
            //00 20 10 10 00
            //00 00 20 10 10

        } else if (chressBord[x][y] == blackchress) {

        }
    }

    //检测纵向吃子
    function verticalEat(x, y) {

    }
</script>
</html>