(function($) { var puzzleConfig = { sizeX: 3, sizeY: 3 }; //全局常量 var Constants={ //每一片拼图透明度较低时候的透明度值 fadeOpacity: 0.8, //放拼图元素的水平方向padding+border的合计值,用于载入拼图后控制容器尺寸 puzzleContainerExtra: 42 }; //图片相关变量 var puzzleImage=null, imageURL="", //图片上传标识,为true时表示相关设置合理,选择图片后将进入游戏 checkFlag=false, imageWidth=0, imageHeight=0; //拼图相关变量 var puzzleWidth=0, puzzleHeight=0, puzzleItemWidth=0, puzzleItemHeight=0, puzzleSizeX=0, puzzleSizeY=0, //拼图数目 puzzleNumber=0, //计数器,计算从开始到完成游戏用的步数 moveStepCount=0, //拼图步数以及是否完成的提示文字 puzzleNote=null, //保存每一片拼图的正确的坐标值的数组 validPosArrayX=[], validPosArrayY=[], //保存每一片拼图的数组,索引顺序和正确的拼图顺序相同 puzzleArray = [], //整个拼图元素本身 puzzle=null, //最终放置该拼图的父元素节点 puzzleSetElem=null; //初始第一步,读取拼图设置和图片源,包括对填写内容的验证*/ var puzzleConfigSet = function() { //类名常量 var sizeInputClassName = "size_input", noteWarnClassName = "note_warn", currentProgressClassName = "current_progress", validImageSuffix = ".jpg|.jpeg|.gif|.bmp|.png"; //放置拼图的由外层变量保存的元素 puzzleSetElem=$ ("puzzleSet"); //取得对应元素 var sizeXElem = $("sizeX"), sizeYElem = $("sizeY"), sizeSetNote = $("sizeSetNote"), uploadBtn = $("uploadBtn"), fileImage = $("fileImage"), uploadProgress = $("uploadProgress"), currentProgress = uploadProgress.getFirst("." + currentProgressClassName), uploadNote = $("uploadNote"); //拼图尺寸设定检查 var puzzleSizeCheck = function() { var sizeX = sizeXElem.value, sizeY = sizeYElem.value, numberReg = /^/d{1,2}$/; if (numberReg.test(sizeX) && numberReg.test(sizeY)) { if (sizeX >= 2 && sizeX <= 10 && sizeY >= 2 && sizeY <= 10) { puzzleConfig.sizeX = sizeX; puzzleConfig.sizeY = sizeY; checkFlag = true; } else { sizeSetNote.addClass(noteWarnClassName); } } else { sizeSetNote.addClass(noteWarnClassName); } }; //图片尺寸检查 var imageCheck = function(image) { var minWidth = 30, maxWidth = 850, minHeight = 30; if (image.width >= 30 && image.width <= 850 && image.height > 30) { checkFlag = checkFlag && true; } else { uploadNote.addClass(noteWarnClassName); checkFlag = false; } }; //图片格式检查 var formatCheck = function(image) { var fileURL = fileImage.value.toLowerCase(); //获取文件拓展名 formatSuffix = fileURL.substring(fileURL.lastIndexOf(".")); if (formatSuffix&&validImageSuffix.contains(formatSuffix)) { //如果是正确格式的图片文件 checkFlag = checkFlag && true; } else { alert("请上传正确格式的图片文件(" + validImageSuffix + ")"); checkFlag = false; } }; //拼图尺寸输入框的事件 $$("." + sizeInputClassName).addEvent("focus", function() { sizeSetNote.removeClass(noteWarnClassName); }); //读取选择上传的图片 puzzleImage = new Image(); puzzleImage.onload = function() { imageCheck(puzzleImage); if (checkFlag) { imageWidth = puzzleImage.width; //由于图片尺寸不一定能被拼图尺寸整除,因此做边缘裁剪 while(imageWidth % puzzleConfig.sizeX != 0){ imageWidth--; } imageHeight = puzzleImage.height; while(imageHeight % puzzleConfig.sizeY != 0){ imageHeight--; } imageURL= puzzleImage.src; puzzleSetElem.empty(); var containerWidth = imageWidth+Constants.puzzleContainerExtra, properContainerWidth = containerWidth>120?containerWidth:120; puzzleSetElem.getParent().setStyles({ width: properContainerWidth }); createPuzzle(); //创建拼图 } else{ //如果读取后图片尺寸不合适的话,重置图片上传 uploadProgress.style.display = "none"; currentProgress.setStyle("width", 0); uploadBtn.style.display = ""; } }; if (typeof FileReader == "undefined") { //如果是不支持File API的浏览器 fileImage.onchange = function() { puzzleSizeCheck(); if (checkFlag) { formatCheck(); } if (checkFlag) { puzzleImage.src = fileImage.value; } }; } else { //如果支持File API,可以显示读取进度条 var imageReader = new FileReader(); //对象URL(blob URL),经测试新版Chrome也支持window.URL function createObjectURL(blob){ if(window.URL){ return window.URL.createObjectURL(blob); }else if(window.webkitURL){ return window.webkitURL.createObjectURL(blob); }else{ return null; } } //开始读取 imageReader.onloadstart = function() { puzzleSizeCheck(); if(checkFlag){ formatCheck(); } if (checkFlag) { uploadBtn.style.display = "none"; uploadProgress.style.display = ""; } }; //读取中 imageReader.onprogress = function(event) { if (checkFlag) { var percentage = 100 * parseInt(event.loaded / event.total) + "%"; currentProgress.setStyle("width", percentage); } }; imageReader.onload = function(event) { if (checkFlag) { //IE10也支持blob URL var url=createObjectURL(fileImage.files[0]); puzzleImage.src = url; } }; fileImage.onchange = function() { imageReader.readAsDataURL(fileImage.files[0]); }; } }; //用于创建拼图 var createPuzzle = function() { //classNameSet表示生成的元素的class名 var classNameSet = { listContainer: "puzzle_container", list: "puzzle_list", item: "puzzle_item" }; //各类元素对应的基本样式 var puzzleStyle = { listContainer: { position: "relative", width: imageWidth, height: imageHeight, margin: "0 auto" }, list: { }, item: { position: "absolute" } }; //计算得到每一块拼图的尺寸 puzzleSizeX = puzzleConfig.sizeX; puzzleSizeY = puzzleConfig.sizeY; puzzleWidth = imageWidth; puzzleHeight = imageHeight; puzzleItemWidth = puzzleWidth / puzzleSizeX; puzzleItemHeight = puzzleHeight / puzzleSizeY; puzzleNumber = puzzleSizeX * puzzleSizeY; //建立一个临时数组,用于生成随机顺序的拼图块 var randomOrderPuzzleArray=[]; //创建元素 puzzle = elementsCreate(); showAnime(); //创建整个拼图的dom,返回最外层的父级元素 function elementsCreate() { var listContainer = new Element("div"); listContainer.addClass(classNameSet.listContainer); listContainer.setStyles(puzzleStyle.listContainer); var list = new Element("ul"); list.addClass(classNameSet.list); list.setStyles(puzzleStyle.list); //先通过循环,创建每一个拼图块,并按正确顺序存入数组 for(var i = 0, len = puzzleNumber; i < len; i++) { var item = new Element("li"); //为每块拼图保存自身的正确索引 var indexSet = i + 1; item.store("puzzleIndex", indexSet); item.addClass(classNameSet.item); //增加基本样式 item.setStyles(puzzleStyle.item); //以正确顺序保存每一个拼图块到数组 puzzleArray.push(item); } //建立一个正确顺序数组的副本 var puzzleArrayClone=puzzleArray.clone(); //再次通过循环,创建一个乱序的拼图数组,并把这个数组显示到页面中 for (i = 0, len = puzzleNumber; i < len; i++) { var randomItem = puzzleArrayClone.getRandom(); //为避免重复,需要把被取出来的元素在副本数组中删除 puzzleArrayClone.erase(randomItem); //为每一块取出来的元素设置可变的位置索引 var posIndex = i + 1; randomItem.posIndex = posIndex; //获取取出来的元素的正确索引,用于接下来计算拼图背景图位置 var correctIndex = randomItem.retrieve("puzzleIndex"); //计算位置 var topSet = Math.floor((posIndex - 1) / puzzleSizeX) * puzzleItemHeight, leftSet = (posIndex - 1) % puzzleSizeX * puzzleItemWidth, //计算符合正确索引的背景图位置 backgroundSetX = -(correctIndex - 1) % puzzleSizeX * puzzleItemWidth, backgroundSetY = -(Math.floor((correctIndex - 1) / puzzleSizeX) * puzzleItemHeight), backgroundString = "url(" + imageURL + ") " + backgroundSetX + "px " + backgroundSetY + "px " + "no-repeat"; //添加关键样式 randomItem.setStyles({ width: Math.ceil(puzzleItemWidth), height: Math.ceil(puzzleItemHeight), background: backgroundString, left: leftSet, top: topSet, zIndex: posIndex }); //生成合理的位置坐标数组 validPosArrayX.push(leftSet); validPosArrayY.push(topSet); //存放乱序元素到乱序数组 randomOrderPuzzleArray.push(randomItem); } //组合拼图的各个元素 list.adopt(randomOrderPuzzleArray); listContainer.adopt(list); return listContainer; } //为拼图的初始化创建动画 function showAnime(){ //一些动画参数 var timeSpace=50, //垂直移动的间距 distance=30, //计数用 count=0, timeFlag; //所有拼图先隐藏,透明度置为0 for(var i=0,len=puzzleArray.length;i<len;i++){ puzzleArray[i].setStyle("opacity",0); } //更新到页面dom中,准备开始动画 puzzleSetElem.grab(puzzle); var enterFrameHandler=function(){ var puzzleItem=randomOrderPuzzleArray[count++]; var endTop=parseInt(puzzleItem.getStyle("top")); var startTop=endTop-distance; puzzleItem.set("morph",{ transition: Fx.Transitions.Quad.easeOut }); puzzleItem.morph({ top:[startTop,endTop], opacity:Constants.fadeOpacity }); if(count<puzzleNumber){ //对最后一个拼图块的动画结束做侦听 if(count==puzzleNumber-1){ var lastMorph=puzzleItem.get("morph"); var showAnimeEnd=function(){ lastMorph.removeEvent("complete",showAnimeEnd); puzzleEventBind(); } lastMorph.addEvent("complete",showAnimeEnd); } timeFlag=setTimeout(enterFrameHandler,timeSpace); } }; timeFlag=setTimeout(enterFrameHandler,timeSpace); } }; //拼图的相关事件绑定,也是游戏的核心控制逻辑 var puzzleEventBind=function(){ //拼图游戏控制相关的变量 var selectedItem=null, //当前选中的拼图位置索引 selectedIndex=0, //用于保存当前鼠标正在拖动的拼图的zIndex值 selectedItemZIndex=0, //每一次切换拼图位置的时候,都涉及到2块拼图,鼠标拖动的这块和交换位置的另外一块,这个就是另外一块 relatedItem=null, //依照鼠标当前的位置,判断得到的目标索引,如果鼠标此时放开,就是说把选中的拼图移到现在鼠标所在的位置 targetIndexNew=0, //通过new和old来区分鼠标从一个目标索引更换到另一个目标索引 targetIndexOld=0, //判断是否进行一次拼图位置移动的逻辑值,只有当目标索引值有改变时,才允许进行拼图位置移动 isTargetIndexChanged=false, //判断鼠标指针是否在拼图的区域之内 isInsidePuzzle=false, //鼠标点击拼图的某一个点的时候,距离拼图的左上角定位点有的距离值 disX=0, disY=0; //计算获取整个拼图的左上角点的坐标 var puzzlePos=puzzle.getPosition(); var puzzlePosX=puzzlePos.x, puzzlePosY=puzzlePos.y; //重新设置每一个元素的动画速度 (function(){ for(var i=0,len=puzzleArray.length;i<len;i++){ var puzzleItem=puzzleArray[i]; puzzleItem.set("morph",{ duration:250 }); } })(); //计数函数准备 var updateCount = (function(){ var stepCount = $("stepCount"); puzzleNote = stepCount.getParent(); return function(){ stepCount.set("text", moveStepCount); }; })(); //添加事件 puzzle.addEvent("mouseover",mouseOverHandler); puzzle.addEvent("mouseout",mouseOutHandler); puzzle.addEvent("mousedown",mouseDownHandler); puzzle.addEvent("mouseup",mouseUpHandler); //鼠标经过 function mouseOverHandler(event){ var target=event.target; if(puzzleArray.contains(target)){ target.setStyle("opacity",1); } } //鼠标移出 function mouseOutHandler(event){ var target=event.target; if(puzzleArray.contains(target)){ target.setStyle("opacity",Constants.fadeOpacity); } } //鼠标按下 function mouseDownHandler(event){ var target=event.target; //race("[mouseDownHandler]selectedItem ="+selectedItem); //如果当前没有其他目标选中,且鼠标选中的目标是拼图块 if(!selectedItem&&puzzleArray.contains(target)){ if(target.getStyle("opacity")<1){ target.setStyle("opacity",1); } //设置当前选中的目标及索引 selectedItemZIndex=target.getStyle("zIndex"); target.setStyle("zIndex",5000); selectedItem=target; selectedIndex=target.posIndex; //设置初始目标索引 targetIndexNew=targetIndexOld=selectedIndex; //计算出鼠标点击的点和拼图左上角定位点的偏差距离 var targetPos=target.getPosition(); disX=event.page.x-targetPos.x; disY=event.page.y-targetPos.y; //增加鼠标移动的事件侦听,让拼图块跟随鼠标移动,并判断当前位置 document.addEvent("mousemove",mouseMoveHandler); } } //鼠标松开 function mouseUpHandler(event){ //如果有元素处于拖动状态,取消 if(selectedItem){ selectedItem.setStyle("opacity",Constants.fadeOpacity); selectedItem.setStyle("zIndex",selectedItemZIndex); document.removeEvent("mousemove",mouseMoveHandler); //松开之后,根据目标索引和拖动元素的索引,移动拼图,并更新dom结构 if(isInsidePuzzle){ //如果目标索引是一块别的拼图 if(targetIndexNew!=selectedIndex){ puzzleItemMove(selectedItem,targetIndexNew,puzzleItemSwitch); }else{ //还原回原来的位置 puzzleItemMove(selectedItem,selectedIndex); selectedItem=null; relatedItem=null; } }else{ //如果鼠标在拼图之外的区域松开,则被拖动的拼图还原回原来的位置 puzzleItemMove(selectedItem,selectedIndex); selectedItem=null; relatedItem=null; targetIndexNew = targetIndexOld = selectedIndex; } } } //鼠标移动 function mouseMoveHandler(event){ var mouseX=event.page.x, mouseY=event.page.y; event.preventDefault(); //设置选中元素的位置,跟随鼠标 selectedItem.setPosition({ x:mouseX-disX-puzzlePosX, y:mouseY-disY-puzzlePosY }) //计算鼠标当前位置是否在拼图区域之内(拼图边缘也算在外) isInsidePuzzle=(function(){ if(mouseX<=puzzlePosX||mouseX-puzzlePosX>=puzzleWidth){ return false; } if(mouseY<=puzzlePosY||mouseY-puzzlePosY>=puzzleHeight){ return false; } return true; })(); //如果鼠标当前位置在拼图区域之内,再做目标索引计算 if(isInsidePuzzle){ //race("[mouseMoveHandler]isInsidePuzzle = true"); //计算目标索引,xIndex和yIndex分别表示当前位置所处的列序号和行序号 var xIndex=Math.ceil((mouseX-puzzlePosX)/puzzleItemWidth), yIndex=Math.ceil((mouseY-puzzlePosY)/puzzleItemHeight); targetIndexNew=(yIndex-1)*puzzleSizeX+xIndex; if(targetIndexNew!=targetIndexOld){ isTargetIndexChanged=true; } //只有当目标索引发生改变时,才移动拼图做示意 if(isTargetIndexChanged){ //如果上一个目标索引的拼图不是鼠标正在移动的这个,那么就需要恢复这张拼图的位置到它原来的地方 if(targetIndexOld!=selectedIndex){ var lastRelatedItemIndex=relatedItem.posIndex; puzzleItemMove(relatedItem,lastRelatedItemIndex); } //更新相关元素,取得拼图数组中posIndex等于当前的目标索引的元素 relatedItem=puzzleArray.filter(function(item, index){ return item.posIndex == targetIndexNew; })[0]; //如果下一个目标索引,不是被拖走的拼图原来所在的位置,就移动新的目标索引的拼图到被拖走的拼图的位置 if(targetIndexNew!=selectedIndex){ puzzleItemMove(relatedItem,selectedIndex); } //重置目标索引改变的逻辑值 isTargetIndexChanged=false; //更新上一个目标索引 targetIndexOld=targetIndexNew; } }else{ //如果移到拼图区域之外,则考虑还原上一个目标索引的拼图 if(targetIndexOld!=selectedIndex){ var lastRelatedItemIndex=relatedItem.posIndex; puzzleItemMove(relatedItem,lastRelatedItemIndex); } //还原targetIndexOld的值,以处理移到拼图外的情况。 targetIndexOld = selectedIndex; } } //每一次拼图交换的功能实现的函数,更改对应元素的posIndex,并更改zIndex function puzzleItemSwitch(){ //交换元素的posIndex selectedItem.posIndex=targetIndexNew; relatedItem.posIndex=selectedIndex; //交换元素的zIndex,通过posIndex来赋值 selectedItem.setStyle("zIndex",selectedItem.posIndex); relatedItem.setStyle("zIndex",relatedItem.posIndex); //清除对相关元素的引用 selectedItem=null; relatedItem=null; //一次更换完成,计数器+1 moveStepCount++; updateCount(); //然后再判断拼图游戏是否完成 clearJudgement(); } //每一块拼图在游戏中的移动函数 function puzzleItemMove(moveItem,moveToIndex,endFn){ var moveToX=validPosArrayX[moveToIndex-1], moveToY=validPosArrayY[moveToIndex-1], originZIndex=moveItem.posIndex; moveItemMorph=moveItem.get("morph"); moveItemMorph.addEvent("start",moveStartHandler); moveItemMorph.addEvent("complete",moveEndHandler); moveItem.morph({ left:moveToX, top:moveToY }); function moveStartHandler(){ moveItem.setStyle("zIndex",1000); } function moveEndHandler(){ moveItemMorph.removeEvent("start",moveStartHandler); moveItemMorph.removeEvent("complete",moveEndHandler); moveItem.setStyle("zIndex",originZIndex); //结尾执行的函数,如果需要的话 if(typeOf(endFn)=="function"){ endFn(); } } } //完成拼图游戏的判定函数 function clearJudgement(){ //检查puzzleArray中的每一个元素的puzzleIndex和posIndex是否全部一致 var isGameClear=puzzleArray.every(function(item, index){ var puzzleIndex=item.retrieve("puzzleIndex"); return item.posIndex==puzzleIndex; }); if(isGameClear){ clearShow(); } } //确定完成拼图游戏后,执行的函数 function clearShow(){ //清除所有事件侦听 puzzle.removeEvent("mouseover",mouseOverHandler); puzzle.removeEvent("mouseout",mouseOutHandler); puzzle.removeEvent("mousedown",mouseDownHandler); puzzle.removeEvent("mouseup",mouseUpHandler); var clearAnimeFlag=null, count=0; //按顺序点亮所有拼图的动画 var enterFrameHandler=function(){ var item=puzzleArray[count++]; item.fade(1); if(count<puzzleNumber){ clearAnimeFlag=setTimeout(enterFrameHandler,50); } }; clearAnimeFlag=setTimeout(enterFrameHandler,50); //游戏完成后的信息~❤ puzzleNote.set('html','Congratulations ! Your final step count is <em class="step_count">'+moveStepCount+'</em>.'); } } //创建全局变量puzzleGame window.puzzleGame={}; //添加方法到全局变量puzzleGame中 puzzleGame.start = function() { puzzleConfigSet(); }; })(document.id); puzzleGame.start();
原创文章,作者:ItWorker,如若转载,请注明出处:https://blog.ytso.com/8685.html