JS小游戏之极速快跑源码详解
发布时间:2020-12-14 22:57:41 所属栏目:资源 来源:网络整理
导读:本篇章节讲解JS小游戏的极速快跑源码,供大家参考研究。具体如下: 游戏运行后如下图所示: Javascript部分代码如下: /** 极速快跑* Author: fdipzone* Date: 2012-07-15* Ver: 1.0*/var gameimg = ['images/start.png','images/start_over.png','i
本篇章节讲解JS小游戏的极速快跑源码,分享给大家供大家参考。具体如下: 游戏运行后如下图所示: Javascript部分代码如下: /** 极速快跑 * Author: fdipzone * Date: 2012-07-15 * Ver: 1.0 */ var gameimg = ['images/start.png','images/start_over.png','images/go.png','images/go_over.png','images/running.gif','images/run_start1.gif','images/run_start2.gif','images/run_start3.gif']; var speed_obj = new SpeedClass(); window.onload = function(){ var callback = function(){ speed_obj.init(); } img_preload(gameimg,callback); } // Speed Class function SpeedClass(){ this.levelset = [8,5,8,12]; // 难度参数 this.playerlist = null; // 选手列表 this.player = 0; // 选中的选手 this.level = 2; // 难度 this.lock = 0; // 锁定 this.isstart = 0; // 是否开始 this.isover = 0; // 是否结束 } // init SpeedClass.prototype.init = function(){ this.reset(); this.create_player(); this.create_event(); } // reset SpeedClass.prototype.reset = function(){ this.player = 0; this.level = $('level').value; // level this.playerlist = $_tag('li','playerlist'); for(var i=0; i<this.playerlist.length; i++){ this.playerlist[i].className = ''; } disp('start_btn','show','start_btn'); disp('go_btn','hide','go_btn'); this.lock = 0; // unlock this.isstart = 0; // unstart this.isover = 0; // unover } // create player SpeedClass.prototype.create_player = function(){ var runway = []; var playerlist = []; for(var i=1; i<=8; i++){ runway[i] = '<li><div id="player' + (9-i) + '" class="run_status1"></div></li>'; playerlist[i] = '<li>' + i + '</li>'; } $('runway').innerHTML = runway.join(''); $('playerlist').innerHTML = playerlist.join(''); runway = null; playerlist = null; } // create event SpeedClass.prototype.create_event = function(){ var self = this; this.playerlist = $_tag('li','playerlist'); for(var i=0; i<this.playerlist.length; i++){ this.playerlist[i].onmouSEOver = function(){ if(this.className!='on'){ this.className = 'over'; } } this.playerlist[i].onmouSEOut = function(){ if(this.className!='on'){ this.className = ''; } } this.playerlist[i].onclick = function(o,c){ return function(){ if(self.lock==0){ o.playerlist[c].className = 'on'; if(o.player!=0 && o.player!=c+1){ // 不等於0且不等於自己 o.playerlist[o.player-1].className = ''; } o.player = c + 1; } } }(self,i); } $('start_btn').onmouSEOver = function(){ this.className = 'start_over_btn'; } $('start_btn').onmouSEOut = function(){ this.className = 'start_btn'; } $('start_btn').onclick = function(){ if(self.player==0){ return alert('请选择要支持的选手'); }else{ self.lock = 1; // locked disp('start_btn','hide'); disp('go_btn','show'); for(var i=1; i<=8; i++){ self.start(i); } } } $('go_btn').onmouSEOver = function(){ this.className = 'go_over_btn'; } $('go_btn').onmouSEOut = function(){ this.className = 'go_btn'; } $('go_btn').onclick = function(){ self.go(); } } // start game SpeedClass.prototype.start = function(c){ var o = $('player' + c); var step = 1; var self = this; var exert = 0; o.style.marginLeft = '62px'; // init var et = setInterval(function(){ if(step<4){ // step 1-3 is ready o.className = 'run_status' + step; }else{ // run if(o.className!='running'){ o.className = 'running'; } // start can go if(self.isstart==0){ self.isstart = 1; } // 已有一名选手到达终点 if(self.isover==1){ clearInterval(et); }else{ if(self.player!=c){ // 其他选手 exert = Math.floor(Math.random()* self.levelset[self.level])+3; // 根据level调整 } o.style.marginLeft = parseInt(o.style.marginLeft) + Math.floor(Math.random()*8)+4 + exert + 'px'; // 到达终点 if(parseInt(o.style.marginLeft)>=745){ clearInterval(et); self.isover = 1; self.gameover(o.id); } } } step ++; },350) } // go SpeedClass.prototype.go = function(){ if(this.isstart==1 && this.isover==0){ var o = $('player' + this.player); var exert = Math.floor(Math.random()*3)+2; // 2-5 o.style.marginLeft = parseInt(o.style.marginLeft) + exert + 'px'; } return false; } // gameover SpeedClass.prototype.gameover = function(id){ id = id.replace('player',''); var self = this; var msg = ''; if(id==this.player){ msg = "恭喜你,你支持的选手获得胜利nn"; }else{ msg = "很遗憾,你支持的选手没有获得胜利,获胜的是" + id + "号选nn"; } if(confirm(msg + '是否重新开始?')==true){ setTimeout(function(){ self.init(); },1000); }else{ return false; } } /** common function */ // get document.getElementBy(id) function $(id){ this.id = id; return document.getElementById(id); } // get document.getElementsByTagName function $_tag(name,id){ if(typeof(id)!='undefined'){ return $(id).getElementsByTagName(name); }else{ return document.getElementsByTagName(name); } } /* div show and hide * @param id dom id * @param handle show or hide * @param classname */ function disp(id,handle,classname){ if(handle=='show'){ $(id).style.display = 'block'; }else{ $(id).style.display = 'none'; } if(typeof(classname)!='undefined'){ $(id).className = classname; } } /* img preload * @param img 要加载的图片数组 * @param callback 图片加载成功后回调方法 */ function img_preload(img,callback){ var onload_img = 0; var tmp_img = []; for(var i=0,imgnum=img.length; i<imgnum; i++){ tmp_img[i] = new Image(); tmp_img[i].src = img[i]; if(tmp_img[i].complete){ onload_img ++; }else{ tmp_img[i].onload = function(){ onload_img ++; } } } var et = setInterval( function(){ if(onload_img==img.length){ // 定时器,判断图片完全加载后调用callback clearInterval(et); callback(); } },200); } 完整实例代码点击此处本站下载。 相信本文所述对大家的javascript游戏设计有一定的借鉴价值。 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |