HTML5实现魔方游戏的代码

互联网 18-8-6
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<!DOCTYPE html> <html> <head>   <meta charset="UTF-8">   <title>WebGL魔方小游戏 - www.web-tinker.com</title> <style>* {padding:0px;margin:0px;overflow:hidden;background:#000;}</style> <canvas id="canvas" width="512" height="512"></canvas> <script type="text/x-glsl" id="svShader"> attribute vec3 position; attribute vec3 normal; attribute vec3 color; uniform mat4 mMatrix; uniform mat4 mvpMatrix; uniform mat4 mvpShadowerMatrix; uniform vec3 lVector; varying float diffuse; varying vec4 vPosition; varying vec3 vColor; void main(){   vec4 v4Position=vec4(position,1.0);   vPosition=mvpShadowerMatrix*v4Position;   gl_Position=mvpMatrix*v4Position;   vec3 tNormal=(mMatrix*vec4(normalize(normal),0.0)).xyz;   diffuse=max(-dot(tNormal,normalize(lVector)),0.4);   vColor=color; } </script> <script type="text/x-glsl" id="sfShader"> precision lowp float; varying float diffuse; uniform sampler2D depthData; uniform vec2 size; varying vec4 vPosition; varying vec3 vColor; vec2 depthMap; float f(float i,float j){   float z=texture2D(depthData,depthMap+vec2(i,j)*2.0/size).z;   return abs(z-vPosition.z)<0.01?diffuse:0.4; } void main(){   depthMap=(vPosition.xy/vPosition.w*0.5+0.5)/512.0*size;   float vDiffuse=0.0;   for(float i=-2.0;i<=2.0;i++)for(float j=-2.0;j<=2.0;j++)vDiffuse+=f(i,j);   vDiffuse/=25.0;   gl_FragColor=vec4(vec3(vDiffuse*vColor),1.0); } </script> <script type="text/x-glsl" id="pvShader"> attribute vec3 position; attribute vec3 normal; attribute vec3 color; uniform mat4 mvpMatrix; varying float xx; void main(){   gl_Position=mvpMatrix*vec4(position,1.0);   normal;color; } </script> <script type="text/x-glsl" id="pfShader"> precision lowp float; uniform float index; void main(){   gl_FragColor=vec4(vec3(index),1.0); } </script> <script type="text/x-glsl" id="bvShader"> attribute vec3 position; uniform mat4 mvpShadowerMatrix; varying float depth; void main(){   gl_Position=mvpShadowerMatrix*vec4(position,1.0);   depth=gl_Position.z; } </script> <script type="text/x-glsl" id="bfShader"> varying lowp float depth; void main(){   gl_FragColor=vec4(vec3(depth),1.0); } </script> <base href="http://www.web-tinker.com/files/" /> <script src="SimpleWebGL.2.0.js"></script> <script src="SimpleWebGL.Matrix.1.0.js"></script> <script> new SimpleWebGL(canvas).namespace(function(   Program,VertexShader,FragmentShader,ArrayBuffer,   Framebuffer,Renderbuffer,Texture2D,Matrix ){   //基本函数   var π=Math.PI,sin=Math.sin,cos=Math.cos,acos=Math.acos,pow=Math.pow,abs=Math.abs,       round=Math.round,random=Math.random,updateMvpMatrix=function(){         this.data.mvpMatrix=new Matrix(this.data.mMatrix).multiply(vpMatrix);         this.data.mvpShadowerMatrix=new Matrix(this.data.mMatrix).multiply(vpShadowerMatrix);       };   //定义方块   var Cube;   (function(){     var i,j,k,p,n,position=[],normal=[],color=[],push=Array.prototype.push,a=1,b=0.9,         ctab=[[1,1,0],[0,0,1],[1,0,0],[1,1,1],[0,1,0],[1,0.5,0]];     for(i=0;i<2;i++)for(j=0;j<3;j++){ //面       for(k=0;k<4;k++)         p=[k>>1?b:-b,k&1?b:-b],p.splice(j,0,i?a:-a),push.apply(position,p),         n=[0,0],n.splice(j,0,i?a:-a),push.apply(normal,n),         push.apply(color,ctab[i*3+j]);       push.apply(position,position.slice(-9,-3));       push.apply(normal,normal.slice(-9,-3));       push.apply(color,color.slice(-9,-3));     };     for(i=0;i<3;i++)for(j=0;j<4;j++){ //棱       for(k=0;k<4;k++)         p=k<2?[a,b]:[b,a],p[0]*=j&2?1:-1,p[1]*=j&1?1:-1,         p.splice(i,0,(k&1?1:-1)*b),push.apply(position,p),         n=[a*(j&2?1:-1),a*(j&1?1:-1)],n.splice(i,0,0),push.apply(normal,n);       push.apply(position,position.slice(-9,-3));       push.apply(normal,normal.slice(-9,-3));       for(k=0;k<6;k++)color.push(0.5,0.5,0.5);     };     for(i=0;i<8;i++)for(j=0;j<3;j++){ //角       for(k=0;k<3;k++)         position.push((k==j?a:b)*(i&1<<k?1:-1)),         normal.push(a*(i&1<<k?1:-1));       color.push(0.5,0.5,0.5);     };     var count=position.length/3,buffers={       position:new ArrayBuffer(position),       normal:new ArrayBuffer(normal),       color:new ArrayBuffer(color)     };     Cube=function(){this.data=Object.create(buffers);};     Cube.prototype={update:updateMvpMatrix,valueOf:function(){return count;}};   })();   //生成操作对象   var cubes=[],ground;   cubes.dimension=3,   cubes.translation=Matrix.model([0,2,0]);   cubes.rotation=Matrix.model([]).pitch(60).yaw(40).pitch(10);   cubes.wMatrix=new Matrix(cubes.rotation).multiply(cubes.translation);   (function(d){     var i,j,k,o,e=(cubes.dimension-1)/2;     for(i=0;i<d;i++)for(j=0;j<d;j++)for(k=0;k<d;k++)       cubes.push(o=new Cube()),       o.location=[i,j,k],o.rotation=new Matrix(4),       o.translation=[i*2-d+1,j*2-d+1,k*2-d+1],       o.m=Matrix.model(o.translation),       o.data.mMatrix=new Matrix(o.m).multiply(cubes.wMatrix),       o.rotate=function(m,r){         this.location=Matrix.model(this.location).move(-e,-e,-e)[m](r*90).move(e,e,e).slice(-4,-1).map(round);         this.m=Matrix.model(this.translation).multiply(this.rotation[m](r*90));       };   })(cubes.dimension);   (function(i,j,k){      ground={update:updateMvpMatrix,data:{       position:new ArrayBuffer([-i,0,-j, -i,0,j, i,0,-j, i,0,j, -i,0,j, i,0,-j]),       normal:new ArrayBuffer([0,1,0, 0,1,0, 0,1,0, 0,1,0, 0,1,0, 0,1,0]),       color:new ArrayBuffer([].concat(k,k,k,k,k,k)),mMatrix:Matrix.model([0,-7,-9])     },valueOf:function(){return 6;}};   })(7,12,[0.5,0.5,0.5]);   //打乱   (function shuffle(c){     var d=cubes.dimension,dir=random()*d|0,m=["pitch","yaw","roll"][dir],         r=random()*3+1|0,cur=random()*d|0,offset=(d-1)/2,group=[],i,o;     for(i=0;o=cubes[i];i++)if(o.location[dir]==cur)group.push(o);     for(i=0;o=group[i];i++)o.rotate(m,r),o.data.mMatrix=new Matrix(o.m).multiply(cubes.wMatrix);     if(c-->0)shuffle(c);   })(30);   //定义矩阵   var vpMatrix=Matrix.view([0,0,32]).multiply(     Matrix.projection(30,canvas.width/canvas.height,0.01,200)   ),lVector=[-0,-8,-8],vpShadowerMatrix=Matrix.view( //光     [-lVector[0],-lVector[1],-lVector[2]],     acos(-lVector[2]/pow(pow(lVector[0],2)+pow(lVector[2],2),0.5))/π*180,     -acos(-lVector[2]/pow(pow(lVector[1],2)+pow(lVector[2],2),0.5))/π*180   ).multiply(new Matrix(4).data(2,2,-1/32).data(3,3,9).data(3,1,-1.2));   //初始化着色器   var picker=new Program(new VertexShader(pvShader),new FragmentShader(pfShader)).link(),   shadower=new Program(new VertexShader(bvShader),new FragmentShader(bfShader)).link(),   stage=new Program(new VertexShader(svShader),new FragmentShader(sfShader)).link();   stage.use().data({size:[canvas.width,canvas.height],lVector:lVector});   //初始化缓冲区   var frameTexture=new Texture2D(null,"RGBA",512,512).bind(0),   framebuffer=new Framebuffer(new Renderbuffer("DEPTH_COMPONENT16",512,512),frameTexture).unbind();   //播放帧   var active;   this.play(function(){     var i,o,l=cubes.length;     for(i=0;i<l;i++)cubes[i].update();     ground.update();     if(MBUTTON==null){       framebuffer.bind(),this.clear("COLOR","DEPTH"),picker.use();       for(i=0;o=cubes[i];i++)picker.data(o.data).data({index:(i+1)/l}).draw(o);       active=round(frameTexture.readPixels(MX,512-MY)[0]/0xFF*l-1);     };     framebuffer.bind(),this.clear("COLOR","DEPTH"),shadower.use();     for(i=0;o=cubes[i];i++)shadower.data(o.data).draw(o);     shadower.data(ground.data).draw(ground);     framebuffer.unbind(),this.clear("COLOR","DEPTH"),stage.use();     for(i=0;o=cubes[i];i++)stage.data(o.data).draw(o);     stage.data(ground.data).draw(ground);   }).setting({DEPTH_TEST:"LESS"}).color(0,0,0,1);   //鼠标操作   var MX,MY,MBUTTON;   (function(){     addEventListener("contextmenu",function(e){e.preventDefault();});     addEventListener("mousedown",function(e){MBUTTON=e.button;});     addEventListener("mouseup",function(e){MBUTTON=null;});     addEventListener("mousemove",function(e){MX=e.layerX,MY=e.layerY;});     //元素拖拽     var queue=[],offset=(cubes.dimension-1)/2;     addEventListener("mousedown",function(e){       if(e.button!=0||active<0)return;       var i,j,o,dir,mx=e.clientX,my=e.clientY,mousemove,mouseup,           groups=[[],[],[]],methods=["pitch","yaw","roll"],mpos;       for(i=0;o=cubes[i];i++)for(j=0;j<3;j++)         if(o.location[j]==cubes[active].location[j])groups[j].push(o);       addEventListener("mousemove",mousemove=function(e){         var ndir,group,i,j,o;         mpos=Matrix.model([(e.clientY-my)/2,(e.clientX-mx)/2,0]).multiply(new Matrix(cubes.wMatrix).inverse()).slice(-4,-1);         group=groups[o=mpos.map(abs),ndir=o.indexOf(Math.max.apply(Math,o))];         if(dir!=ndir)for(i=0;i<queue.length;i++)for(j=0;j<group.length;j++)           if(queue[i].indexOf(group[j])>-1)ndir=dir,j=group.length,i=queue.length;         if(dir!=void 0&&dir!=ndir)           for(i=0;o=groups[dir][i];i++)o.data.mMatrix=new Matrix(o.m).multiply(cubes.wMatrix);         if(group=groups[dir=ndir])for(i=0;o=group[i];i++)           o.data.mMatrix=new Matrix(o.m)[methods[dir]](mpos[dir]).multiply(cubes.wMatrix);       }),addEventListener("mouseup",mouseup=function(){         removeEventListener("mousemove",mousemove),removeEventListener("mouseup",mouseup);         var m=methods[dir],r=round(mpos[dir]/90)%4,group=groups[dir],i,o,r;         if(!group)return;         queue.push(group);         for(i=0;o=group[i];i++)o.rotate(m,r);         if(r=mpos[dir]%=90)if(abs(r)>45)r=r<0?90-abs(r):abs(r)-90;         (function callee(){           if(abs(r*=0.7)<0.5)r=0;           for(i=0;o=group[i];i++)o.data.mMatrix=new Matrix(o.m)[m](r).multiply(cubes.wMatrix);           if(r)setTimeout(callee,16);           else queue.splice(queue.indexOf(group),1);         })()       });     });     //控制方向     addEventListener("mousedown",function(e){       if(e.button!=2)return;       var x=e.clientX,y=e.clientY,mousemove,mouseup;       addEventListener("mousemove",mousemove=function(e){         cubes.rotation.yaw((e.clientX-x)/2).pitch((e.clientY-y)/2);         cubes.wMatrix=new Matrix(cubes.rotation).multiply(cubes.translation);         for(var i=0,o;o=cubes[i];i++)o.data.mMatrix=new Matrix(o.m).multiply(cubes.wMatrix);         x=e.clientX,y=e.clientY;       }),addEventListener("mouseup",mouseup=function(e){         removeEventListener("mousemove",mousemove),removeEventListener("mouseup",mouseup);       });     });   })();  }); </script> </head> <body>    </body> </html>
HTML5实现魔方游戏的代码

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