基本就是拖拽功能的應用,其它鼠標事件綁定,距離的計算,動畫等,也有很多細節問題,
需要親自做了才知道, 支持IE系列,FIREFOX,chrome瀏覽器, IE6下可能有點卡。
過關卡的時候需要下載下一張圖片,如果網速慢則會暫時停止一下,稍等一會就可以接着下一關。
玩到最后一關就可以自定義圖片拼圖了,只需要輸入圖片的地址就可以了!
如果需要直接自定義圖片,則用谷歌瀏覽器或者FIREBUG把隱藏的Id 為 imgDiy 的層顯示出來
就可以了.
DEMO演示:點擊試玩
源代碼下載:點擊下載
IFREAME演示:
就不解釋了,我源代碼里面的注釋寫得很清楚,有興趣的可以看一下源代碼,如下:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JS</title>
<meta name="keywords" content="拼圖游戲"/>
<meta name="description" content="拼圖游戲"/>
<style type="text/css">
#vvg p {
text-align: center;
font-size: 14px;
font-weight: bold;
}
#vvg ul {
overflow: hidden;
text-align: center;
}
#thumb li {
list-style: none;
float: left;
display: inline;
margin-left: 5px;
}
#gameCanvas {
position: relative;
padding: 0;
margin: 0 auto;
}
#gameCanvas li {
position: absolute;
list-style: none;
cursor: move;
}
#vvgBox {
margin: 0 auto;
overflow: hidden;
position: relative;
}
#mask {
position: absolute;
z-index: 999;
background: #fff;
left: 0;
top: 0;
}
#button {
width: 133px;
height: 133px;
background-image: url('images/play.png');
position: absolute;
z-index: 1000;
margin-left: -66px;
left: 50%;
margin-top: -66px;
top: 50%;
}
#button:hover {
background-position: -133px 0;
}
#textTip {
font-size: 25px;
font-weight: bold;
color: #000;
text-align: center;
position: relative;
top: -75%;
z-index: 1000;
}
#step {
margin-left: 5px;
margin-right: 5px;
color: red;
font-size: 20px;
}
#imgDiy {
text-align: center;
display: none;
}
</style>
</head>
<body>
<div id="vvg">
<p id="desTip">通過四個關卡后可以自定義圖片 現在是第<span id="step">1</span>關</p>
<p id="imgDiy">填入圖片地址:<input type="text" id="imgUrl"><input id="startDiy" type="button" value="開始"></p>
<div id="vvgBox">
<ul id="gameCanvas"></ul>
</div>
</div>
<script type="text/javascript">
/* by VVG 2012年6月1日
E-MAIL:mysheller@163.com
博客地址:http://www.cnblogs.com/NNUF/
*/
/*快捷函數*/
function getId(id) {
return typeof id === "string" ? document.getElementById(id) : id
}
function setOpacity(node, level) {
if (document.all) {
node.style.filter = 'alpha(opacity=' + level + ')';
} else {
node.style.opacity = level / 100;
}
}
//設置第幾關
var vvg = {};
vvg.step = 1;
/* 游戲 內容代碼 */
function makeGame(url) {
var imgArray = [], imgArray_bak = [],
dragging = null, draggingL, draggingT, dear, dearL, dearT, top, left, effectEnd,
posArray = [], posArray_bak = [], canvas = getId('gameCanvas'), vvgBox = getId('vvgBox'), successTimer;
// posx,posy 為鼠標相對於拖動對象的左上角距離, sLeft sTop 為拖動對象的初始位置
var posx, posy, zindex = 0, isMouseMove;
var imgWidth, imgHeight;
var img = new Image();
img.src = url;
// 圖片加載完畢
img.onload = function () {
//獲取圖片的尺寸
imgWidth = img.width;
imgHeight = img.height;
var myw = Math.floor(imgWidth / 4),
myh = Math.floor(imgHeight / 4);
vvgBox.style.width = imgWidth + 'px';
vvgBox.style.height = imgHeight + 'px';
canvas.style.width = imgWidth + 'px';
canvas.style.height = imgHeight + 'px';
//清空gameCanvas
while (canvas.firstChild) {
canvas.removeChild(canvas.firstChild);
}
// 文檔碎片
var oFragment = document.createDocumentFragment();
//循環生成方塊狀態的小圖,以背景的形式展現,生成16格,並添加到數組
for (var i = 0; i < 16; i++) {
var li = document.createElement('li');
li.style.width = myw + 'px';
li.style.height = myh + 'px';
li.style.backgroundImage = 'url(' + url + ')';
// 計算坐標
if (i < 4) {//0,1,2,3 第一排
top = 0;
left = i * myw;
} else if (i >= 4 && i < 8) {// 4,5,6,7 第二排
top = myh;
left = (i - 4) * myw;
} else if (i >= 8 && i < 12) {// 8,9,10,11 第三排
top = 2 * myh;
left = (i - 8) * myw;
} else if (i >= 12) { // 12,13,14,15 第四排
top = 3 * myh;
left = (i - 12) * myw;
}
// 記錄還未打亂次序的初始ID對應的每個id的正確位置,用於比較拼圖是否完成
posArray.push([i, left, top]);
// 賦值背景backgroundPosition 與 位置
li.style.backgroundPosition = -left + 'px' + ' ' + (-top) + 'px';
// 賦值ID為i, 用於檢查拼圖的位置
li.id = i;
// 對象是否在移動
li.isMove = false;
// 存儲到數組imgArray中
imgArray.push(li);
li.style.left = left + 'px';
li.style.top = top + 'px';
// 事件綁定
li.onmousedown = function (event) {
event = event || window.event;
var target = event.target || event.srcElement;
isMouseMove = false;
dragging = target;
//記錄拖動對象的初始位置
draggingL = parseInt(dragging.style.left);
draggingT = parseInt(dragging.style.top);
posx = event.clientX - canvas.offsetLeft - dragging.offsetLeft;
posy = event.clientY - canvas.offsetTop - dragging.offsetTop;
zindex++;
// 在移動的圖片就不綁定事件
if (!dragging.isMove) {
document.onmousemove = function (event) {
event = event || window.event;
var myleft = event.clientX - canvas.offsetLeft - posx;
var mytop = event.clientY - canvas.offsetTop - posy;
if (myleft < 0)myleft = 0;
if (mytop < 0)mytop = 0;
if (myleft > canvas.offsetWidth - dragging.offsetWidth)myleft = canvas.offsetWidth - dragging.offsetWidth;
if (mytop > canvas.offsetHeight - dragging.offsetHeight)mytop = canvas.offsetHeight - dragging.offsetHeight;
dragging.style.left = myleft + 'px';
dragging.style.top = mytop + 'px';
dragging.style.zIndex = zindex;
// 設置拖動的元素的不透明度
setOpacity(dragging, 80);
// 獲取離拖動元素最近的元素
dear = checkMeet(dragging);
// 循環設置透明度為100....就是為了改變最近距離的透明度
for (var i = 0, n = imgArray_bak.length; i < n; i++) {
setOpacity(imgArray_bak[i], 100);
}
setOpacity(dear, 50);
dearL = parseInt(dear.style.left);
dearT = parseInt(dear.style.top);
isMouseMove = true;
return false;
};
document.onmouseup = function () {
document.onmousemove = null;
document.onmouseup = null;
// 只發生單擊事件鼠標沒有移動時不會設置透明度移動動畫操作
if (isMouseMove === true) {
dear.style.zIndex = zindex;
setOpacity(dragging, 100);
setOpacity(dear, 100);
startMove(dear, draggingL, draggingT, 10);
startMove(dragging, dearL, dearT, 10);
}
isMouseMove = false;
dragging = null;
return false;
};
}
return false;
};
oFragment.appendChild(li);
}
canvas.appendChild(oFragment);
// 復制一份密碼到posArray_bak,用於檢查拼圖是否完成(id對應正確的位置時,則拼圖完成)
imgArray_bak = imgArray.concat(); //只包含對象
// posArray.push([i, left, top]);
posArray_bak = posArray.concat(); //包含對象id以及未打亂對象的位置屬性
play();
// 打亂數組imgArray
};
// 隨機排列
function rank() {
while (imgArray.length > 0) {
// 在數組的長度中獲取隨機值下標
// 隨機獲取ID
var ranLi = imgArray.splice(random(0, imgArray.length), 1);
// 隨機獲取位置,並從原數組移除,返回移除項組成的數組
var ranCss = posArray.splice(random(0, posArray.length), 1);
// 賦值隨機位置
startMove(ranLi[0], ranCss[0][1], ranCss[0][2], 10);
}
}
// 返回隨機數函數
function random(from, to) {
return Math.floor(Math.random() * (to - from) + from);
}
// 檢測與誰相交,判斷對象的中心點的距離最近即相交
function checkMeet(obj) {
// 存儲與每個對象的最小距離的數組
var disArray = [];
//循環圖片對象列表,求距離並計入數組
for (var i = 0, n = imgArray_bak.length; i < n; i++) {
// 排除自身和正在移動的對象
if (imgArray_bak[i] != obj && !imgArray_bak[i].isMove) {
var item = getDistance(obj, imgArray_bak[i]);
//數組只傳入一個值,后面的值與第一個值比較,如果比它小這替換這個值,剩下的就是最小的距離
if (disArray.length == 0) {
disArray.push([imgArray_bak[i], item]);
}
if (item - 0 < disArray[0][1] - 0) {
disArray.splice(0, 1, [imgArray_bak[i], item]);
}
}
}
// 返回距離最小的對象
return disArray[0][0];
}
// 求兩對象中心兩點之間的距離,傳入對象,利用勾股定理求值
function getDistance(obj1, obj2) {
var a = (obj1.offsetLeft + obj1.offsetWidth / 2) - (obj2.offsetLeft + obj2.offsetWidth / 2);
var b = (obj1.offsetTop + obj1.offsetHeight / 2) - (obj2.offsetTop + obj2.offsetHeight / 2);
return Math.ceil(Math.sqrt(a * a + b * b));
}
// 檢查拼圖是否完成
function check() {
for (var j = 0, n = posArray_bak.length; j < n; j++) {
// posArray.push([i, left, top]);
var loopLi = getId(posArray_bak[j][0] + ''); //加空轉換成字符串
var loopLiLeft = parseInt(loopLi.style.left);
var loopLiTop = parseInt(loopLi.style.top);
if (loopLiLeft != posArray_bak[j][1]) return false;
if (loopLiTop != posArray_bak[j][2]) return false;
}
return true;
}
// 設置移動
function startMove(obj, x2, y2, time) {
clearInterval(obj.timer);
if (!obj.timer) {
obj.timer = setInterval(function () {
move(obj, x2, y2);
}, time);
}
}
// 移動效果
function move(obj, x2, y2) {
//判斷對象是否移動
obj.isMove = true;
var x1 = parseInt(obj.style.left), y1 = parseInt(obj.style.top),
movex = (x2 > x1 ? Math.ceil : Math.floor)((x2 - x1) / 10),
movey = (y2 > y1 ? Math.ceil : Math.floor)((y2 - y1) / 10);
obj.style.left = (x1 + movex) + 'px';
obj.style.top = (y1 + movey) + 'px';
if (parseInt(obj.style.left) == x2 && parseInt(obj.style.top) == y2) {
clearInterval(obj.timer);
obj.isMove = false;
obj.timer = null;
// 通過拼圖檢查,並已經執行了拼圖成功后的效果,避免成功動畫也執行拼圖成功,產生循環
if (!!check() && !effectEnd) {
successTimer && clearTimeout(successTimer);
successTimer = setTimeout(sucessEffect, 800);
}
}
}
// 拼圖成功后效果
function sucessEffect() {
var num = 0, cTimer;
effect();
function effect() {
var copy2 = imgArray_bak.concat();
var copy1 = posArray_bak.concat();
// 打亂數組imgArray
while (copy2.length > 0) {
// 隨機獲取ID
var ranLi = copy2.splice(random(0, copy2.length), 1);
// 隨機獲取位置,並從原數組移除,返回移除項組成的數組
var ranCss = copy1.splice(random(0, copy1.length), 1);
startMove(ranLi[0], ranCss[0][1], ranCss[0][2], 10);
}
num++;
if (num < 4) {
setTimeout(effect, 800);
} else {
setTimeout(back, 800);
}
}
function back() {
var copy1 = posArray_bak.concat();
while (copy1.length > 0) {
var ranCss = copy1.splice(random(0, copy1.length), 1);
startMove(getId(ranCss[0][0] + ''), ranCss[0][1], ranCss[0][2], 30);
// 特效過后彈出蒙板
cTimer && clearTimeout(cTimer);
cTimer = setTimeout(tipNextStep, 1000);
}
effectEnd = true;
}
}
function play() {
var mask = document.createElement('div');
mask.id = 'mask';
mask.style.width = imgWidth + 'px';
mask.style.height = imgHeight + 'px';
setOpacity(mask, 80);
var playBtn = document.createElement('div');
playBtn.id = 'button';
playBtn.onclick = function () {
canvas.removeChild(mask);
vvgBox.removeChild(playBtn);
// 打亂排序
rank();
};
canvas.appendChild(mask);
vvgBox.appendChild(playBtn);
}
// 下一張圖按鈕
function tipNextStep() {
vvg.step += 1;
var mask = document.createElement('div');
mask.id = 'mask';
mask.style.width = imgWidth + 'px';
mask.style.height = imgHeight + 'px';
setOpacity(mask, 80);
var playBtn = document.createElement('div');
playBtn.id = 'button';
if (vvg.step < 5) {
playBtn.onclick = function () {
canvas.removeChild(mask);
vvgBox.removeChild(playBtn);
vvgBox.removeChild(textTip);
var step = getId('step');
step.innerHTML = vvg.step;
makeGame('images/0' + vvg.step + '.jpg');
}
} else {
playBtn.onclick = function () {
while (canvas.firstChild) {
canvas.removeChild(canvas.firstChild);
}
var btn = getId('button');
btn.parentNode.removeChild(btn);
var tip = getId('textTip');
tip.innerHTML = '';
var desTip = getId('desTip');
desTip.innerHTML = '現在你可以自定義圖片了,請在下面的文本框中輸入圖片的地址:';
var imgDiy = getId('imgDiy');
var startDiy = getId('startDiy');
var imgUrl = getId('imgUrl');
imgDiy.style.display = 'block';
startDiy.onclick = function () {
if (imgUrl.value == '') {
alert('請填入圖片地址');
} else {
makeGame(imgUrl.value);
}
}
}
}
var textTip = document.createElement('div');
textTip.id = 'textTip';
textTip.innerHTML = "點擊開始第" + vvg.step + "關";
canvas.appendChild(mask);
vvgBox.appendChild(playBtn);
vvgBox.appendChild(textTip);
}
}
// 默認播放第一關
makeGame('images/01.jpg');
</script>
</body>
</html>
轉載請注明博客地址:http://www.cnblogs.com/NNUF/archive/2012/06/01/2531436.html
