实例介绍
【实例简介】
三国杀版本的很精彩，详见截图
【实例截图】
【核心代码】
<!doctype html>
<html>
<head>
<meta charset="utf-8" />
<title>连连看</title>
<script type="text/javascript" src="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;
//// calc canvas size
//_width = (16 2) * _img_face_width;
//_height = (9 2) * _img_face_height;
// get canvas obj
_canvas = document.getElementById('canvas');
if (_canvas != null && _canvas.getContext != null) {
//_canvas.width = _width;
//_canvas.height = _height;
_canvas.style.backgroundImage = 'url(' img_bg ')';
_ctx = _canvas.getContext("2d");
_ctx.save();
_canvas.onmousemove = OnCanvas_MouseMove;
_canvas.onmousedown = OnCanvas_Click;
}
// load face image to image obj
_img_face = new Image();
_img_face.onload = function () {
// new game
btnNewGame_Click();
}
_img_face.src = img_src;
}
// event
function btnNewGame_Click() {
if (_is_play_animation) return;
_board_state = 0;
document.getElementById('btnOrder').value = '暂停查看排名';
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 = '恢复游戏';
// 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 = '暂停查看排名';
// draw board
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);
}
}
//draw new animation
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("请输入姓名", 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%;">
连连看
</td>
<td style="width: 50%;">
<input id='btnNewGame' name="btnNewGame" type="button" value="新游戏" onclick="btnNewGame_Click()" />
</td>
</tr>
<tr style="width: 100%;">
<td style="width: 50%;">
棋盘大小
</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='暂停查看排名' 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;">你的浏览器不支持Html5，请用Chrome、Opera、Firefox、Safari或IE9</span>
</canvas>
</td>
</tr>
</table>
</body>
</html>
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