html5的canvas特性:三國殺版連連看代碼

2024-09-05 12:18:50

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三國殺版連連看代碼，基于html5的canvas特性，純javascript開發，不由得驚嘆HTML5技術，那些頭像是用canvas生成的哦，并沒有什么圖片，確實在有空的時候，應該研究一下HTML5吧，以后開發網頁游戲也不賴~

<!doctype html><html><head>    <meta charset="utf-8" />    <title>連連看</title>    <script type="text/javascript" src="/jscss/demoimg/201308/board.js"></script>    <script type="text/javascript">        // canvas obj        var _canvas = null;        // context obj        var _ctx = null;        // face image obj        var _img_face = null;        // face img size        var _img_face_m = 0;        var _img_face_n = 0;        var _img_face_src_width = 0;        var _img_face_src_height = 0;        var _img_face_width = 0;        var _img_face_height = 0;        var _img_face_radius = 0;        // board size        var _board_m = 0;        var _board_n = 0;        var _boardsize = 0;        var _board_m_offset = 0;        var _board_n_offset = 0;        // board obj        var _board = null;        // canvas size        var _width = 0;        var _height = 0;        // first selected face        var _first_p = null;        // last moveout face        var _old_p = null;        // animation flag        var _is_play_animation = false;        // board state flag        // 0: start        // 1: pause        // 2: stop        var _board_state = 0;        // current time        var _current_time = null;        var _pause_time = null;        var _timer_time = null;        // entry point        window.onload = function () {            // face img resource size            _img_face_m = 13;            _img_face_n = 4;            _img_face_src_width = 60;            _img_face_src_height = 60;            _img_face_width = 60;            _img_face_height = 60;            _img_face_radius = 10;            _canvas = document.getElementById('canvas');            if (_canvas != null && _canvas.getContext != null) {                _canvas.style.backgroundImage = 'url(' + img_bg + ')';                _ctx = _canvas.getContext("2d");                _ctx.save();                _canvas.onmousemove = OnCanvas_MouseMove;                _canvas.onmousedown = OnCanvas_Click;            }            _img_face = new Image();            _img_face.onload = function () {                btnNewGame_Click();            }            _img_face.src = img_src;        }        // event        function btnNewGame_Click() {            if (_is_play_animation) return;            _board_state = 0;            document.getElementById('btnOrder').value = '暫停查看排名';            var boardsize = parseInt(document.getElementById('boardsize').value);            if (boardsize != _boardsize) {                _boardsize = boardsize;                _first_p = null;                _old_p = null;                switch (boardsize) {                    case 1:                        _board_m = 8;                        _board_n = 6;                        break;                    case 3:                        _board_m = 16;                        _board_n = 9;                        break;                    case 2:                    default:                        _board_m = 12;                        _board_n = 8;                        break;                }                _width = (_board_m + 2) * _img_face_width;                _height = (_board_n + 2) * _img_face_height;                _board_m_offset = (_width - (_board_m + 2) * _img_face_width) / 2;                _board_n_offset = (_height - (_board_n + 2) * _img_face_height) / 2;                if (_ctx != null) {                    _canvas.width = _width;                    _canvas.height = _height;                    _ctx.restore();                    _ctx.save();                    _ctx.clearRect(0, 0, _width, _height);                    _ctx.translate(_board_m_offset, _board_n_offset);                }                _board = null;                _board = new Board();                _board.Init(_board_m, _board_n, _img_face_m * _img_face_n);            }            _board.NewGame();            if (_ctx != null) {                draw_board();            }            if (_timer_time != null) {                clearInterval(_timer_time);                _current_time = null;                _timer_time = null;            }            _current_time = (new Date()).getTime();            draw_time(calc_time());            _timer_time = setInterval(function () {                draw_time(calc_time());            }, 500);        }        function btnHint_Click() {            if (_is_play_animation) return;            if (_board_state > 0) return;            if (_board != null) {                var path = new PATH();                if (_board.GetHint(path) && _ctx != null) {                    // draw path                    draw_face_animation(path.Start.X, path.Start.Y, 'rgba(255,40,40, 1.0)');                    draw_face_animation(path.End.X, path.End.Y, 'rgba(255,40,40, 1.0)');                    draw_path(path, 'rgba(255,40,40, 1.0)');                    _is_play_animation = true;                    setTimeout(function () {                        _is_play_animation = false;                        // erase path                        erase_path(path);                        // draw face                        draw_face(_board.FaceItems[path.Start.X][path.Start.Y], path.Start.X, path.Start.Y);                        draw_face(_board.FaceItems[path.End.X][path.End.Y], path.End.X, path.End.Y);                    }, 300);                }            }        }        function btnOrder_Click() {            if (_is_play_animation) return;            if (_board_state == 2) return;            if (localStorage == null || _ctx == null) return;            if (_timer_time != null) {                _board_state = 1;                document.getElementById('btnOrder').value = '恢復游戲';                // pause timer                clearInterval(_timer_time);                _timer_time = null;                _pause_time = (new Date()).getTime();                // draw order                draw_order(true);            }            else {                _board_state = 0;                document.getElementById('btnOrder').value = '暫停查看排名';                draw_board();                // restart timer                _current_time += (new Date()).getTime() - _pause_time;                _pause_time = null;                draw_time(calc_time());                _timer_time = setInterval(function () {                    draw_time(calc_time());                }, 500);            }        }        function btnRemoveOrder_Click() {            if (localStorage == null) return;            for (var i = 0; i < 5; i++) {                var keyName = "name" + _boardsize + "_" + i;                var keyTime = "time" + _boardsize + "_" + i;                localStorage.removeItem(keyName);                localStorage.removeItem(keyTime);            }        }        function OnCanvas_MouseMove(e) {            if (_is_play_animation) return;            if (_board_state > 0) return;            if (!e.offsetX) {                var offsetP = calc_offset(_canvas);                e.offsetX = e.pageX - offsetP.X;                e.offsetY = e.clientY - offsetP.Y;            }            var x = e.offsetX - _board_m_offset;            var y = e.offsetY - _board_n_offset;            var board_p = point2board(x, y);            if (_ctx != null) {                //revert old animation                if (_first_p != null && _old_p != null && (_first_p.X == _old_p.X && _first_p.Y == _old_p.Y)) {                    // old == first                }                else {                    // != old                    if (_old_p != null && (board_p == null || !(_old_p.X == board_p.X && _old_p.Y == board_p.Y))) {                        draw_face(_board.FaceItems[_old_p.X][_old_p.Y], _old_p.X, _old_p.Y);                    }                }                if (board_p != null && _board.FaceItems[board_p.X][board_p.Y] > 0) {                    // !=selected face                    if (_first_p == null                    || (_first_p != null && !(_first_p.X == board_p.X && _first_p.Y == board_p.Y))) {                        draw_face_animation(board_p.X, board_p.Y, 'rgba(255,128,128, 0.8)');                        _old_p = board_p;                    }                }            }        }        function OnCanvas_Click(e) {            if (e.button != 0) return; // 1 for left button            if (_is_play_animation) return;            if (_board_state > 0) return;            if (!e.offsetX) {                var offsetP = calc_offset(_canvas);                e.offsetX = e.pageX - offsetP.X;                e.offsetY = e.pageY - offsetP.Y;            }            var x = e.offsetX - _board_m_offset;            var y = e.offsetY - _board_n_offset;            var board_p = point2board(x, y);            if (board_p == null) return;            if (_board.FaceItems[board_p.X][board_p.Y] <= 0) return;            if (_first_p == null) {                _first_p = board_p;                draw_face_animation(board_p.X, board_p.Y, 'rgba(255,40,40, 1.0)');            }            else if (_first_p.X == board_p.X && _first_p.Y == board_p.Y) return;            else {                var path = new PATH();                path.Start.X = _first_p.X;                path.Start.Y = _first_p.Y;                path.End.X = board_p.X;                path.End.Y = board_p.Y;                if (_board.IsFit(path)) {                    if (_ctx != null) {                        draw_face_animation(path.End.X, path.End.Y, 'rgba(255,40,40, 1.0)');                        draw_solve_process(path);                    }                }                else {                    draw_face(_board.FaceItems[_first_p.X][_first_p.Y], _first_p.X, _first_p.Y);                    _first_p.X = board_p.X;                    _first_p.Y = board_p.Y;                    draw_face_animation(board_p.X, board_p.Y, 'rgba(255,40,40, 1.0)');                }            }        }        // draw to UI        function draw_board() {            _ctx.clearRect(0, 0, _width, _height);            for (var i = 0; i < _board_m + 2; i++) {                for (var j = 0; j < _board_n + 2; j++) {                    draw_face(_board.FaceItems[i][j], i, j);                }            }        }        function draw_face(i, board_x, board_y) {            var faceNum = img_face_number(i);            if (faceNum == null) return;            var m = faceNum.X;            var n = faceNum.Y;            _ctx.drawImage(                _img_face,                m * _img_face_src_width, n * _img_face_src_height, _img_face_src_width, _img_face_src_height,                board_x * _img_face_width, board_y * _img_face_height, _img_face_width, _img_face_height);        }        function erase_face(board_x, board_y) {            _ctx.clearRect(board_x * _img_face_width, board_y * _img_face_height, _img_face_width, _img_face_height);        }        function draw_face_animation(board_x, board_y, color) {            _ctx.save();            _ctx.lineWidth = 3;            _ctx.strokeStyle = color;            roundedRectStroke(_ctx, board_x * _img_face_width, board_y * _img_face_height, _img_face_width, _img_face_height, _img_face_radius);            _ctx.restore();        }        function draw_solve_process(path) {            // draw path            draw_path(path, 'rgba(255,40,40, 1.0)');            _is_play_animation = true;            setTimeout(function () {                _is_play_animation = false;                // draw path                erase_path(path);                _board.ErasePair(path);                _first_p = null;               // check                if (_board.IsSuccessFinish()) {                    // set board state                    _board_state = 2;                    // stop timer                    if (_timer_time != null) {                        clearInterval(_timer_time);                        _timer_time = null;                    }                    // draw order                    var tms = calc_time();                    insert_score(tms);                    draw_order(false);                    draw_time(tms);                    // clear time                    _current_time = null;                }                else {                    if (!_board.GetHint(path)) {                        for (var i = 0; i < 1000; i++) {                            _board.RearrangeBoard();                            if (_board.GetHint(path)) {                                draw_board();                                break;                            }                        }                    }                }            }, 100);        }        function draw_order(showTitle) {            var x = (_board_m + 2) * _img_face_width / 2;            var y = 45;            _ctx.save();            _ctx.clearRect(0, 0, _width, _height);            _ctx.fillStyle = "orange";            if (showTitle) {                _ctx.font = "32pt Arial";                    _ctx.fillText("排名", x - 45, y);            }            _ctx.font = "22pt Arial";            for (var i = 0; i < 5; i++) {                var keyName = "name" + _boardsize + "_" + i;                var keyTime = "time" + _boardsize + "_" + i;                var orderName = localStorage.getItem(keyName);                var orderTime = localStorage.getItem(keyTime);                if (orderName != null && orderTime != null) {                    var itemString = (i + 1).toString() + ". " + format_time_string(orderTime) + "  " + orderName;                    _ctx.fillText(itemString, x - 130, y + 40 * (i + 1));                }            }            _ctx.restore();        }        function draw_time(tms) {            var x = (_board_m + 2) * _img_face_width / 2 - 83;            var y = 45;            _ctx.save();            _ctx.clearRect(x, 0, 250, _img_face_height);            _ctx.font = "32pt Arial";            _ctx.fillStyle = "orange";            _ctx.fillText(format_time_string(tms), x, y);            _ctx.restore();        }        function draw_path(path, color) {            _ctx.save();            _ctx.save();            _ctx.fillStyle = "transparent";            _ctx.fillRect(path.Start.X * _img_face_width, path.Start.Y * _img_face_height, _img_face_width, _img_face_height);            _ctx.fillRect(path.End.X * _img_face_width, path.End.Y * _img_face_height, _img_face_width, _img_face_height);            _ctx.restore();            _ctx.globalCompositeOperation = 'destination-over';            _ctx.lineWidth = 3;            _ctx.lineCap = 'round';            _ctx.lineJoin = 'round';            _ctx.strokeStyle = color;            _ctx.beginPath();            _ctx.moveTo(path.Start.X * _img_face_width + _img_face_width / 2, path.Start.Y * _img_face_height + _img_face_height / 2);            _ctx.lineTo(path.MidOne.X * _img_face_width + _img_face_width / 2, path.MidOne.Y * _img_face_height + _img_face_height / 2);            _ctx.lineTo(path.MidTwo.X * _img_face_width + _img_face_width / 2, path.MidTwo.Y * _img_face_height + _img_face_height / 2);            _ctx.lineTo(path.End.X * _img_face_width + _img_face_width / 2, path.End.Y * _img_face_height + _img_face_height / 2);            _ctx.stroke();            _ctx.restore();        }        function erase_path(path) {            erase_from_to(path.Start, path.MidOne);            erase_from_to(path.MidOne, path.MidTwo);            erase_from_to(path.MidTwo, path.End);        }        function erase_from_to(from, to) {            if (from.X < to.X) {                _ctx.clearRect(from.X * _img_face_width, from.Y * _img_face_height, _img_face_width * (to.X - from.X + 1), _img_face_height * (to.Y - from.Y + 1));            }            else if (from.X > to.X) {                _ctx.clearRect(to.X * _img_face_width, to.Y * _img_face_height, _img_face_width * (from.X - to.X + 1), _img_face_height * (from.Y - to.Y + 1));            }            else {                if (from.Y < to.Y) {                    _ctx.clearRect(from.X * _img_face_width, from.Y * _img_face_height, _img_face_width * (to.X - from.X + 1), _img_face_height * (to.Y - from.Y + 1));                }                else {                    _ctx.clearRect(to.X * _img_face_width, to.Y * _img_face_height, _img_face_width * (from.X - to.X + 1), _img_face_height * (from.Y - to.Y + 1));                }            }        }        function roundedRectStroke(ctx, x, y, width, height, radius) {            x += 2;            y += 2;            width -= 4;            height -= 4;            ctx.beginPath();            roundedRectCore(ctx, x, y, width, height, radius);            ctx.stroke();        }        function roundedRectFill(ctx, x, y, width, height, radius) {            x += 2;            y += 2;            width -= 4;            height -= 4;            ctx.beginPath();            roundedRectCore(ctx, x, y, width, height, radius);            ctx.fill();        }        function roundedRectCore(ctx, x, y, width, height, radius) {            ctx.moveTo(x, y + radius);            ctx.lineTo(x, y + height - radius);            ctx.quadraticCurveTo(x, y + height, x + radius, y + height);            ctx.lineTo(x + width - radius, y + height);            ctx.quadraticCurveTo(x + width, y + height, x + width, y + height - radius);            ctx.lineTo(x + width, y + radius);            ctx.quadraticCurveTo(x + width, y, x + width - radius, y);            ctx.lineTo(x + radius, y);            ctx.quadraticCurveTo(x, y, x, y + radius);        }        // utility function        function point2board(x, y) {            var gridPoint = new Point();            gridPoint.X = double2int(x / _img_face_width);            gridPoint.Y = double2int(y / _img_face_height);            // check we're not out of bounds            if (gridPoint.X > _board_m || gridPoint.Y > _board_n                || gridPoint.X < 1 || gridPoint.Y < 1) {                gridPoint = null;            }            return gridPoint;        }        function img_face_number(i) {            // when bound, return            if (i <= 0) return null;            var gridPoint = new Point();            i = (i - 1) % (_img_face_m * _img_face_n);            gridPoint.X = i % _img_face_m;            gridPoint.Y = double2int(i / _img_face_m);            return gridPoint;        }        function calc_offset(element) {            if(element==null) return null;            var offsetP = new Point();            var cur = element;            offsetP.X = cur.offsetLeft;            offsetP.Y = cur.offsetTop;            while (cur.offsetParent != null) {                cur = cur.offsetParent;                if (cur.offsetLeft) {                    offsetP.X += cur.offsetLeft;                    offsetP.Y += cur.offsetTop;                }            }            return offsetP;        }        function calc_time() {            return (new Date()).getTime() - _current_time;        }        // support Number and String        function double2int(x) {            //return x > 0 ? Math.floor(x) : Math.ceil(x);            //return parseInt(x);            //return ~~x;            return (0 | x);        }        function format_time_string(tms) {            var ts = double2int(tms / 1000);            var hh = double2int(ts / 3600);            var mm = double2int((ts % 3600) / 60);            var ss = ts % 60;            return (format_number(hh) + ':' + format_number(mm) + ':' + format_number(ss));        }        function format_number(n) {            return n < 10 ? ('0' + n) : n.toString();        }        function insert_score(tms) {            var i = 0;            for (i = 0; i < 5; i++) {                var keyTime = "time" + _boardsize + "_" + i;                var orderTime = localStorage.getItem(keyTime);                if (orderTime == null) break;                else {                    var tempTime = double2int(orderTime);                    if (tms < tempTime) break;                }            }            var name = "匿名";            if (i < 5) {                name = localStorage.getItem("last_name");                if (name == null || name == "") {                    name = "匿名";                }                name = prompt("請輸入姓名", name);                if (name == null || name == "") {                    name = "匿名";                }                else if (name.length > 12) {                    name = name.substr(0, 12);                }                localStorage.setItem("last_name", name)            }            var oldOrderName = name;            var oldOrderTime = tms;            for (; i < 5; i++) {                var keyName = "name" + _boardsize + "_" + i;                var keyTime = "time" + _boardsize + "_" + i;                var orderName = localStorage.getItem(keyName);                var orderTime = localStorage.getItem(keyTime);                localStorage.setItem(keyName, oldOrderName);                localStorage.setItem(keyTime, oldOrderTime);                if (orderName == null || orderTime == null) break;                oldOrderName = orderName;                oldOrderTime = orderTime;            }        }    </script></head><body>    <table border="1" cellpadding="0" cellspacing="0" style="width: 600px; height: 400px; margin: auto;">        <tr style="width: 100%;">            <td style="width: 50%;">                連連看            </td>            <td style="width: 50%;">                <input id='btnNewGame' name="btnNewGame" type="button" value="新游戲" onclick="btnNewGame_Click()" />            </td>        </tr>        <tr style="width: 100%;">            <td style="width: 50%;">                棋盤大小            </td>            <td style="width: 50%;">                <select id="boardsize" style="width: 200px;">                    <option value="1">小</option>                    <option value="2" selected="selected">中</option>                    <option value="3">大</option>                </select>            </td>        </tr>        <tr style="width: 100%;">            <td style="width: 50%;">                操作            </td>            <td style="width: 50%;">                <input id='btnHint' name="btnHint" type="button" value='提示' onclick="btnHint_Click()" />                                  <input id='btnOrder' name="btnOrder" type="button" value='暫停查看排名' onclick="btnOrder_Click()" />                                  <input id='btnRemoveOrder' name="btnRemoveOrder" type="button" value='清除排名' onclick="btnRemoveOrder_Click()" />            </td>        </tr>        <tr>            <td colspan="2">                <canvas id="canvas">                    <span style="background-color:Aqua;">你的瀏覽器不支持Html5，請用Chrome、Opera、Firefox、Safari或IE9</span>                </canvas>            </td>        </tr>    </table></body></html>

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