玉兔寻宝，带你一起遨游太空，历经艰险，寻找宝藏，好玩的游戏，你敢来挑战！
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玉兔寻宝，是一款微信小游戏，采用html5+canvas制作，没有使用框架，性能还需要优化。
主要部分代码带注释展示：
//效果最好的动画方法兼容写法 window.RAF = (function(){ return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function (callback) {window.setTimeout(callback, 1000 / 60); }; })();
//Ship飞船
function Ship(cxt){
this.width=60,
this.height=60,
this.top=stage.height-this.height-16,
this.left=stage.width/2-this.width/2;
this.loading=false,
this.loadimages={};
var player=new Image();
this.paint = function(){
var _this=this;
this.player=player;
player.addEventListener('load',function(){
cxt.drawImage(player, _this.left, _this.top, _this.width, _this.height);
},false);
player.src='img/player.png';
},
//换用chongpaint相当于做图片延迟加载器
this.chongpaint=function(){
cxt.drawImage(this.player, this.left, this.top, this.width, this.height);
},
//设置位置
this.setPosition=function(event){
if(pingfan.isMobile()){
var tarL = event.changedTouches[0].clientX;
var tarT = event.changedTouches[0].clientY;
}else{
var tarL = event.offsetX;
var tarT = event.offsetY;
}
this.left = tarL - this.width/2 - 16;
this.top = tarT - this.height/2;
if(this.left<0){
this.left = 0;
}
if(this.left>stage.width-this.width){
this.left = stage.width-this.width;
}
if(this.top<0){
this.top = 0;
}
if(this.top>stage.height - this.height){
this.top = stage.height - this.height;
}
//cxt.clearRect(0,0,stage.width,stage.height);
this.chongpaint();
},
//事件控制
this.controll=function(){
var currentX = this.left,
currentY = this.top,
_this=this,move = false;;
stage.addEventListener(touchStart,function(event){
//event.preventDefault();
_this.setPosition(event);
move=true;
},false);
stage.addEventListener(touchEnd,function(){
move=false;
},false);
stage.addEventListener(touchMove,function(event){
event.preventDefault();
if(move){
_this.setPosition(event);
}
},false);
},
//吃的方法
this.eat=function(fallList){
for(var i=fallList.length;i--;){
var f = fallList[i];
if(f){
var a=this.top+this.height/2 - (f.top+f.height/2),
b=this.left+this.width/2- (f.left+f.width/2),
average=Math.sqrt(a*a+b*b);
//出现碰撞
if(average<=(this.height/2+f.height/2)){
fallList[f.id] = null;
if(f.type==0){
console.log(1);
gameMonitor.stop();
fallList[f.id] = null;
}else{
score.innerHTML=++gameMonitor.score;
pingfan.addClass(heart,'hotheart');
setTimeout(function() {
pingfan.removeClass(heart,'hotheart');
}, 200);
}
}
}
}
}
}
//下落
function Fallingstone(type, left, id){
this.speedUpTime = 2000;
this.id = id;
this.type = type;
this.width = 50;
this.height = 50;
this.left = left;
this.top = -50;
this.speed = 0.01 * Math.pow(1.1, Math.floor(gameMonitor.time/this.speedUpTime));
this.loop = 0;
var p = this.type == 0 ? 'img/food1.png' : 'img/food2.png',
pic=new Image();
pic.src=p;
this.pic=pic;
}
Fallingstone.prototype={
constructor:Fallingstone,
paint:function(cxt){
cxt.drawImage(this.pic, this.left, this.top, this.width, this.height);
},
move:function(cxt){
if(gameMonitor.time % this.speedUpTime == 0){
this.speed *= 0.8;
}
this.top += ++this.loop * this.speed;
if(this.top>gameMonitor.bgheight){
gameMonitor.fallList[this.id] = null;
}
else{
this.paint(cxt);
}
}
}
//gameMonitor游戏场景
var gameMonitor={
bgwidth:stage.width,
bgheight:stage.height,
time : 0,
timmer : null,
bgSpeed : 2,//移动增长值
bgloop : 0,
bgDistance : 0,//背景位置,
fallList : [],
score:0,
initStart:true,
init:function(){
var cxt=stage.getContext('2d');
var bg=new Image(),_this=this;
this.bg = bg;
//图片加载成功，绘画背景
bg.addEventListener('load',function(){
cxt.drawImage(bg,0,0,stage.width,stage.height);
},false);
bg.src='img/bg.jpg';
this.initListener(cxt);
},
initListener:function(cxt){
var _this=this;
//隐藏指示，开始
guidecontainer.addEventListener(touchStart,function(){
audio.play();
guidecontainer.style.display='none';
_this.ship=new Ship(cxt);
_this.ship.paint();
_this.ship.controll();
_this.reset();
_this.run(cxt);
},false);
//再来一次
replay.addEventListener(touchStart,function(){
audio.play();
gameresult.style.display='none';
_this.ship=new Ship(cxt);
_this.ship.paint();
_this.ship.controll();
_this.reset();
_this.run(cxt);
},false);
sharebutton.addEventListener(touchStart,function(){
if(pingfan.isWeiXin())share.style.display='block';
//share.style.display='block';
},false)
share.addEventListener(touchStart,function(){
share.style.display='none';
},false);
},
//动态背景
rollBg : function(cxt){
if(this.bgDistance>=this.bgheight){
this.bgloop = 0;
}
this.bgDistance = ++this.bgloop * this.bgSpeed;
cxt.drawImage(this.bg, 0, this.bgDistance-this.bgheight, this.bgwidth, this.bgheight);
cxt.drawImage(this.bg, 0, this.bgDistance, this.bgwidth, this.bgheight);
},
run:function(cxt){
var _this=this;
cxt.clearRect(0,0,_this.bgwidth,_this.bgheight);
_this.rollBg(cxt);
//绘制飞船
_this.ship.chongpaint();
_this.ship.eat(_this.fallList);
//console.log(_this.fallList);
//产生月饼
_this.genorateFall();
//绘制月饼
for(i=_this.fallList.length-1; i>=0; i--){
var f = _this.fallList[i];
if(f){
f.paint(cxt);
f.move(cxt);
}
}
if(_this.initStart)_this.timmer = RAF(function(){_this.run(cxt);});
_this.time++;
},
reset:function(){
this.fallList = [];
this.bgloop = 0;
this.score = 0;
this.timmer = null;
this.time = 0;
this.initStart=true;
score.innerHTML=0;
},
//生产陨石
genorateFall : function(){
var genRate = 60; //产生月饼的频率
var random = Math.random();
if(random*genRate>genRate-1){
var left = Math.random()*(this.bgwidth - 60);
var type = Math.floor(left)%2 == 0 ? 0 : 1;
var id = this.fallList.length;
var f = new Fallingstone(type, left, id);
this.fallList.push(f);
}
},
stop:function(){
audio.pause();
var _this = this;
console.log(111);
gameover.style.display='block';
_this.initStart=null;
setTimeout(function(){
gameover.style.display='none',
_this.getScore(),
gameresult.style.display='block';
},1000);
},
getScore:function(){
var time=Math.floor(this.time/60);
if(this.score==0){
scorecontent.innerHTML="真遗憾，你既然<span class='lighttext'>一个</span>也没有捞到。";
suclog.className='';
suclog.className='yihan';
shareData.tContent="你也太菜了吧，你既然一个也没有捞到，你也来试试吧。"
return;
}else if(this.score<10){
scorecontent.innerHTML="您在<span class='lighttext'>"+time+"</span>秒内捞到了<span class='lighttext'>"+this.score+"</span>个宝贝，超过了<span class='lighttext'>2%</span>的用户！";
shareData.tContent="我在"+time+"秒内捞到了"+this.score+"个宝贝，超过了2%的用户，敢跟我来比一比吗？"
}else if(this.score>=10 && this.score<20){
scorecontent.innerHTML="您在<span class='lighttext'>"+time+"</span>秒内捞到了<span class='lighttext'>"+this.score+"</span>个宝贝，超过了<span class='lighttext'>10%</span>的用户！";
shareData.tContent="我在"+time+"秒内捞到了"+this.score+"个宝贝，超过了10%的用户，敢跟我来比一比吗？"
}else if(this.score>=20 && this.score<40){
scorecontent.innerHTML="您在<span class='lighttext'>"+time+"</span>秒内捞到了<span class='lighttext'>"+this.score+"</span>个宝贝，超过了<span class='lighttext'>40%</span>的用户！";
shareData.tContent="我在"+time+"秒内捞到了"+this.score+"个宝贝，超过了40%的用户，敢跟我来比一比吗？"
}else if(this.score>=40 && this.score<60){
scorecontent.innerHTML="您在<span class='lighttext'>"+time+"</span>秒内捞到了<span class='lighttext'>"+this.score+"</span>个宝贝，超过了<span class='lighttext'>60%</span>的用户！";
shareData.tContent="我在"+time+"秒内捞到了"+this.score+"个宝贝，超过了60%的用户，敢跟我来比一比吗？"
}else if(this.score>=60 && this.score<90){
scorecontent.innerHTML="太棒了，您在<span class='lighttext'>"+time+"</span>秒内捞到了<span class='lighttext'>"+this.score+"</span>个宝贝，超过了<span class='lighttext'>80%</span>的用户！";
shareData.tContent="太棒了，我在"+time+"秒内捞到了"+this.score+"个宝贝，超过了80%的用户，敢跟我来比一比吗？"
}else if(this.score>=90 && this.score<=120){
scorecontent.innerHTML="太棒了，您在<span class='lighttext'>"+time+"</span>秒内捞到了<span class='lighttext'>"+this.score+"</span>个宝贝，超过了<span class='lighttext'>90%</span>的用户！";
shareData.tContent="太棒了，我在"+time+"秒内捞到了"+this.score+"个宝贝，超过了90%的用户，敢跟我来比一比吗？"
}else if(this.score>150){
scorecontent.innerHTML="太棒了，您在<span class='lighttext'>"+time+"</span>秒内捞到了<span class='lighttext'>"+this.score+"</span>个宝贝，超过了<span class='lighttext'>99%</span>的用户！";
shareData.tContent="太棒了，我在"+time+"秒内捞到了"+this.score+"个，超过了99%的用户，敢跟我来比一比吗？"
}
suclog.className='';
suclog.className='good';
}
}
主要封装了几个对象，服从主对象gameMonitor游戏场景。
亲，喜欢就点星、点赞，也希望各为大神指点、交流。
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