// glMatrix-0.9.5.min.js glMatrixArrayType=typeof Float32Array!="undefined"?Float32Array:typeof WebGLFloatArray!="undefined"?WebGLFloatArray:Array;var vec3={};vec3.create=function(a){var b=new glMatrixArrayType(3);if(a){b[0]=a[0];b[1]=a[1];b[2]=a[2]}return b};vec3.set=function(a,b){b[0]=a[0];b[1]=a[1];b[2]=a[2];return b};vec3.add=function(a,b,c){if(!c||a==c){a[0]+=b[0];a[1]+=b[1];a[2]+=b[2];return a}c[0]=a[0]+b[0];c[1]=a[1]+b[1];c[2]=a[2]+b[2];return c}; vec3.subtract=function(a,b,c){if(!c||a==c){a[0]-=b[0];a[1]-=b[1];a[2]-=b[2];return a}c[0]=a[0]-b[0];c[1]=a[1]-b[1];c[2]=a[2]-b[2];return c};vec3.negate=function(a,b){b||(b=a);b[0]=-a[0];b[1]=-a[1];b[2]=-a[2];return b};vec3.scale=function(a,b,c){if(!c||a==c){a[0]*=b;a[1]*=b;a[2]*=b;return a}c[0]=a[0]*b;c[1]=a[1]*b;c[2]=a[2]*b;return c}; vec3.normalize=function(a,b){b||(b=a);var c=a[0],d=a[1],e=a[2],g=Math.sqrt(c*c+d*d+e*e);if(g){if(g==1){b[0]=c;b[1]=d;b[2]=e;return b}}else{b[0]=0;b[1]=0;b[2]=0;return b}g=1/g;b[0]=c*g;b[1]=d*g;b[2]=e*g;return b};vec3.cross=function(a,b,c){c||(c=a);var d=a[0],e=a[1];a=a[2];var g=b[0],f=b[1];b=b[2];c[0]=e*b-a*f;c[1]=a*g-d*b;c[2]=d*f-e*g;return c};vec3.length=function(a){var b=a[0],c=a[1];a=a[2];return Math.sqrt(b*b+c*c+a*a)};vec3.dot=function(a,b){return a[0]*b[0]+a[1]*b[1]+a[2]*b[2]}; vec3.direction=function(a,b,c){c||(c=a);var d=a[0]-b[0],e=a[1]-b[1];a=a[2]-b[2];b=Math.sqrt(d*d+e*e+a*a);if(!b){c[0]=0;c[1]=0;c[2]=0;return c}b=1/b;c[0]=d*b;c[1]=e*b;c[2]=a*b;return c};vec3.lerp=function(a,b,c,d){d||(d=a);d[0]=a[0]+c*(b[0]-a[0]);d[1]=a[1]+c*(b[1]-a[1]);d[2]=a[2]+c*(b[2]-a[2]);return d};vec3.str=function(a){return"["+a[0]+", "+a[1]+", "+a[2]+"]"};var mat3={}; mat3.create=function(a){var b=new glMatrixArrayType(9);if(a){b[0]=a[0];b[1]=a[1];b[2]=a[2];b[3]=a[3];b[4]=a[4];b[5]=a[5];b[6]=a[6];b[7]=a[7];b[8]=a[8];b[9]=a[9]}return b};mat3.set=function(a,b){b[0]=a[0];b[1]=a[1];b[2]=a[2];b[3]=a[3];b[4]=a[4];b[5]=a[5];b[6]=a[6];b[7]=a[7];b[8]=a[8];return b};mat3.identity=function(a){a[0]=1;a[1]=0;a[2]=0;a[3]=0;a[4]=1;a[5]=0;a[6]=0;a[7]=0;a[8]=1;return a}; mat3.transpose=function(a,b){if(!b||a==b){var c=a[1],d=a[2],e=a[5];a[1]=a[3];a[2]=a[6];a[3]=c;a[5]=a[7];a[6]=d;a[7]=e;return a}b[0]=a[0];b[1]=a[3];b[2]=a[6];b[3]=a[1];b[4]=a[4];b[5]=a[7];b[6]=a[2];b[7]=a[5];b[8]=a[8];return b};mat3.toMat4=function(a,b){b||(b=mat4.create());b[0]=a[0];b[1]=a[1];b[2]=a[2];b[3]=0;b[4]=a[3];b[5]=a[4];b[6]=a[5];b[7]=0;b[8]=a[6];b[9]=a[7];b[10]=a[8];b[11]=0;b[12]=0;b[13]=0;b[14]=0;b[15]=1;return b}; mat3.str=function(a){return"["+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+", "+a[4]+", "+a[5]+", "+a[6]+", "+a[7]+", "+a[8]+"]"};var mat4={};mat4.create=function(a){var b=new glMatrixArrayType(16);if(a){b[0]=a[0];b[1]=a[1];b[2]=a[2];b[3]=a[3];b[4]=a[4];b[5]=a[5];b[6]=a[6];b[7]=a[7];b[8]=a[8];b[9]=a[9];b[10]=a[10];b[11]=a[11];b[12]=a[12];b[13]=a[13];b[14]=a[14];b[15]=a[15]}return b}; mat4.set=function(a,b){b[0]=a[0];b[1]=a[1];b[2]=a[2];b[3]=a[3];b[4]=a[4];b[5]=a[5];b[6]=a[6];b[7]=a[7];b[8]=a[8];b[9]=a[9];b[10]=a[10];b[11]=a[11];b[12]=a[12];b[13]=a[13];b[14]=a[14];b[15]=a[15];return b};mat4.identity=function(a){a[0]=1;a[1]=0;a[2]=0;a[3]=0;a[4]=0;a[5]=1;a[6]=0;a[7]=0;a[8]=0;a[9]=0;a[10]=1;a[11]=0;a[12]=0;a[13]=0;a[14]=0;a[15]=1;return a}; mat4.transpose=function(a,b){if(!b||a==b){var c=a[1],d=a[2],e=a[3],g=a[6],f=a[7],h=a[11];a[1]=a[4];a[2]=a[8];a[3]=a[12];a[4]=c;a[6]=a[9];a[7]=a[13];a[8]=d;a[9]=g;a[11]=a[14];a[12]=e;a[13]=f;a[14]=h;return a}b[0]=a[0];b[1]=a[4];b[2]=a[8];b[3]=a[12];b[4]=a[1];b[5]=a[5];b[6]=a[9];b[7]=a[13];b[8]=a[2];b[9]=a[6];b[10]=a[10];b[11]=a[14];b[12]=a[3];b[13]=a[7];b[14]=a[11];b[15]=a[15];return b}; mat4.determinant=function(a){var b=a[0],c=a[1],d=a[2],e=a[3],g=a[4],f=a[5],h=a[6],i=a[7],j=a[8],k=a[9],l=a[10],o=a[11],m=a[12],n=a[13],p=a[14];a=a[15];return m*k*h*e-j*n*h*e-m*f*l*e+g*n*l*e+j*f*p*e-g*k*p*e-m*k*d*i+j*n*d*i+m*c*l*i-b*n*l*i-j*c*p*i+b*k*p*i+m*f*d*o-g*n*d*o-m*c*h*o+b*n*h*o+g*c*p*o-b*f*p*o-j*f*d*a+g*k*d*a+j*c*h*a-b*k*h*a-g*c*l*a+b*f*l*a}; mat4.inverse=function(a,b){b||(b=a);var c=a[0],d=a[1],e=a[2],g=a[3],f=a[4],h=a[5],i=a[6],j=a[7],k=a[8],l=a[9],o=a[10],m=a[11],n=a[12],p=a[13],r=a[14],s=a[15],A=c*h-d*f,B=c*i-e*f,t=c*j-g*f,u=d*i-e*h,v=d*j-g*h,w=e*j-g*i,x=k*p-l*n,y=k*r-o*n,z=k*s-m*n,C=l*r-o*p,D=l*s-m*p,E=o*s-m*r,q=1/(A*E-B*D+t*C+u*z-v*y+w*x);b[0]=(h*E-i*D+j*C)*q;b[1]=(-d*E+e*D-g*C)*q;b[2]=(p*w-r*v+s*u)*q;b[3]=(-l*w+o*v-m*u)*q;b[4]=(-f*E+i*z-j*y)*q;b[5]=(c*E-e*z+g*y)*q;b[6]=(-n*w+r*t-s*B)*q;b[7]=(k*w-o*t+m*B)*q;b[8]=(f*D-h*z+j*x)*q; b[9]=(-c*D+d*z-g*x)*q;b[10]=(n*v-p*t+s*A)*q;b[11]=(-k*v+l*t-m*A)*q;b[12]=(-f*C+h*y-i*x)*q;b[13]=(c*C-d*y+e*x)*q;b[14]=(-n*u+p*B-r*A)*q;b[15]=(k*u-l*B+o*A)*q;return b};mat4.toRotationMat=function(a,b){b||(b=mat4.create());b[0]=a[0];b[1]=a[1];b[2]=a[2];b[3]=a[3];b[4]=a[4];b[5]=a[5];b[6]=a[6];b[7]=a[7];b[8]=a[8];b[9]=a[9];b[10]=a[10];b[11]=a[11];b[12]=0;b[13]=0;b[14]=0;b[15]=1;return b}; mat4.toMat3=function(a,b){b||(b=mat3.create());b[0]=a[0];b[1]=a[1];b[2]=a[2];b[3]=a[4];b[4]=a[5];b[5]=a[6];b[6]=a[8];b[7]=a[9];b[8]=a[10];return b};mat4.toInverseMat3=function(a,b){var c=a[0],d=a[1],e=a[2],g=a[4],f=a[5],h=a[6],i=a[8],j=a[9],k=a[10],l=k*f-h*j,o=-k*g+h*i,m=j*g-f*i,n=c*l+d*o+e*m;if(!n)return null;n=1/n;b||(b=mat3.create());b[0]=l*n;b[1]=(-k*d+e*j)*n;b[2]=(h*d-e*f)*n;b[3]=o*n;b[4]=(k*c-e*i)*n;b[5]=(-h*c+e*g)*n;b[6]=m*n;b[7]=(-j*c+d*i)*n;b[8]=(f*c-d*g)*n;return b}; mat4.multiply=function(a,b,c){c||(c=a);var d=a[0],e=a[1],g=a[2],f=a[3],h=a[4],i=a[5],j=a[6],k=a[7],l=a[8],o=a[9],m=a[10],n=a[11],p=a[12],r=a[13],s=a[14];a=a[15];var A=b[0],B=b[1],t=b[2],u=b[3],v=b[4],w=b[5],x=b[6],y=b[7],z=b[8],C=b[9],D=b[10],E=b[11],q=b[12],F=b[13],G=b[14];b=b[15];c[0]=A*d+B*h+t*l+u*p;c[1]=A*e+B*i+t*o+u*r;c[2]=A*g+B*j+t*m+u*s;c[3]=A*f+B*k+t*n+u*a;c[4]=v*d+w*h+x*l+y*p;c[5]=v*e+w*i+x*o+y*r;c[6]=v*g+w*j+x*m+y*s;c[7]=v*f+w*k+x*n+y*a;c[8]=z*d+C*h+D*l+E*p;c[9]=z*e+C*i+D*o+E*r;c[10]=z* g+C*j+D*m+E*s;c[11]=z*f+C*k+D*n+E*a;c[12]=q*d+F*h+G*l+b*p;c[13]=q*e+F*i+G*o+b*r;c[14]=q*g+F*j+G*m+b*s;c[15]=q*f+F*k+G*n+b*a;return c};mat4.multiplyVec3=function(a,b,c){c||(c=b);var d=b[0],e=b[1];b=b[2];c[0]=a[0]*d+a[4]*e+a[8]*b+a[12];c[1]=a[1]*d+a[5]*e+a[9]*b+a[13];c[2]=a[2]*d+a[6]*e+a[10]*b+a[14];return c}; mat4.multiplyVec4=function(a,b,c){c||(c=b);var d=b[0],e=b[1],g=b[2];b=b[3];c[0]=a[0]*d+a[4]*e+a[8]*g+a[12]*b;c[1]=a[1]*d+a[5]*e+a[9]*g+a[13]*b;c[2]=a[2]*d+a[6]*e+a[10]*g+a[14]*b;c[3]=a[3]*d+a[7]*e+a[11]*g+a[15]*b;return c}; mat4.translate=function(a,b,c){var d=b[0],e=b[1];b=b[2];if(!c||a==c){a[12]=a[0]*d+a[4]*e+a[8]*b+a[12];a[13]=a[1]*d+a[5]*e+a[9]*b+a[13];a[14]=a[2]*d+a[6]*e+a[10]*b+a[14];a[15]=a[3]*d+a[7]*e+a[11]*b+a[15];return a}var g=a[0],f=a[1],h=a[2],i=a[3],j=a[4],k=a[5],l=a[6],o=a[7],m=a[8],n=a[9],p=a[10],r=a[11];c[0]=g;c[1]=f;c[2]=h;c[3]=i;c[4]=j;c[5]=k;c[6]=l;c[7]=o;c[8]=m;c[9]=n;c[10]=p;c[11]=r;c[12]=g*d+j*e+m*b+a[12];c[13]=f*d+k*e+n*b+a[13];c[14]=h*d+l*e+p*b+a[14];c[15]=i*d+o*e+r*b+a[15];return c}; mat4.scale=function(a,b,c){var d=b[0],e=b[1];b=b[2];if(!c||a==c){a[0]*=d;a[1]*=d;a[2]*=d;a[3]*=d;a[4]*=e;a[5]*=e;a[6]*=e;a[7]*=e;a[8]*=b;a[9]*=b;a[10]*=b;a[11]*=b;return a}c[0]=a[0]*d;c[1]=a[1]*d;c[2]=a[2]*d;c[3]=a[3]*d;c[4]=a[4]*e;c[5]=a[5]*e;c[6]=a[6]*e;c[7]=a[7]*e;c[8]=a[8]*b;c[9]=a[9]*b;c[10]=a[10]*b;c[11]=a[11]*b;c[12]=a[12];c[13]=a[13];c[14]=a[14];c[15]=a[15];return c}; mat4.rotate=function(a,b,c,d){var e=c[0],g=c[1];c=c[2];var f=Math.sqrt(e*e+g*g+c*c);if(!f)return null;if(f!=1){f=1/f;e*=f;g*=f;c*=f}var h=Math.sin(b),i=Math.cos(b),j=1-i;b=a[0];f=a[1];var k=a[2],l=a[3],o=a[4],m=a[5],n=a[6],p=a[7],r=a[8],s=a[9],A=a[10],B=a[11],t=e*e*j+i,u=g*e*j+c*h,v=c*e*j-g*h,w=e*g*j-c*h,x=g*g*j+i,y=c*g*j+e*h,z=e*c*j+g*h;e=g*c*j-e*h;g=c*c*j+i;if(d){if(a!=d){d[12]=a[12];d[13]=a[13];d[14]=a[14];d[15]=a[15]}}else d=a;d[0]=b*t+o*u+r*v;d[1]=f*t+m*u+s*v;d[2]=k*t+n*u+A*v;d[3]=l*t+p*u+B* v;d[4]=b*w+o*x+r*y;d[5]=f*w+m*x+s*y;d[6]=k*w+n*x+A*y;d[7]=l*w+p*x+B*y;d[8]=b*z+o*e+r*g;d[9]=f*z+m*e+s*g;d[10]=k*z+n*e+A*g;d[11]=l*z+p*e+B*g;return d};mat4.rotateX=function(a,b,c){var d=Math.sin(b);b=Math.cos(b);var e=a[4],g=a[5],f=a[6],h=a[7],i=a[8],j=a[9],k=a[10],l=a[11];if(c){if(a!=c){c[0]=a[0];c[1]=a[1];c[2]=a[2];c[3]=a[3];c[12]=a[12];c[13]=a[13];c[14]=a[14];c[15]=a[15]}}else c=a;c[4]=e*b+i*d;c[5]=g*b+j*d;c[6]=f*b+k*d;c[7]=h*b+l*d;c[8]=e*-d+i*b;c[9]=g*-d+j*b;c[10]=f*-d+k*b;c[11]=h*-d+l*b;return c}; mat4.rotateY=function(a,b,c){var d=Math.sin(b);b=Math.cos(b);var e=a[0],g=a[1],f=a[2],h=a[3],i=a[8],j=a[9],k=a[10],l=a[11];if(c){if(a!=c){c[4]=a[4];c[5]=a[5];c[6]=a[6];c[7]=a[7];c[12]=a[12];c[13]=a[13];c[14]=a[14];c[15]=a[15]}}else c=a;c[0]=e*b+i*-d;c[1]=g*b+j*-d;c[2]=f*b+k*-d;c[3]=h*b+l*-d;c[8]=e*d+i*b;c[9]=g*d+j*b;c[10]=f*d+k*b;c[11]=h*d+l*b;return c}; mat4.rotateZ=function(a,b,c){var d=Math.sin(b);b=Math.cos(b);var e=a[0],g=a[1],f=a[2],h=a[3],i=a[4],j=a[5],k=a[6],l=a[7];if(c){if(a!=c){c[8]=a[8];c[9]=a[9];c[10]=a[10];c[11]=a[11];c[12]=a[12];c[13]=a[13];c[14]=a[14];c[15]=a[15]}}else c=a;c[0]=e*b+i*d;c[1]=g*b+j*d;c[2]=f*b+k*d;c[3]=h*b+l*d;c[4]=e*-d+i*b;c[5]=g*-d+j*b;c[6]=f*-d+k*b;c[7]=h*-d+l*b;return c}; mat4.frustum=function(a,b,c,d,e,g,f){f||(f=mat4.create());var h=b-a,i=d-c,j=g-e;f[0]=e*2/h;f[1]=0;f[2]=0;f[3]=0;f[4]=0;f[5]=e*2/i;f[6]=0;f[7]=0;f[8]=(b+a)/h;f[9]=(d+c)/i;f[10]=-(g+e)/j;f[11]=-1;f[12]=0;f[13]=0;f[14]=-(g*e*2)/j;f[15]=0;return f};mat4.perspective=function(a,b,c,d,e){a=c*Math.tan(a*Math.PI/360);b=a*b;return mat4.frustum(-b,b,-a,a,c,d,e)}; mat4.ortho=function(a,b,c,d,e,g,f){f||(f=mat4.create());var h=b-a,i=d-c,j=g-e;f[0]=2/h;f[1]=0;f[2]=0;f[3]=0;f[4]=0;f[5]=2/i;f[6]=0;f[7]=0;f[8]=0;f[9]=0;f[10]=-2/j;f[11]=0;f[12]=-(a+b)/h;f[13]=-(d+c)/i;f[14]=-(g+e)/j;f[15]=1;return f}; mat4.lookAt=function(a,b,c,d){d||(d=mat4.create());var e=a[0],g=a[1];a=a[2];var f=c[0],h=c[1],i=c[2];c=b[1];var j=b[2];if(e==b[0]&&g==c&&a==j)return mat4.identity(d);var k,l,o,m;c=e-b[0];j=g-b[1];b=a-b[2];m=1/Math.sqrt(c*c+j*j+b*b);c*=m;j*=m;b*=m;k=h*b-i*j;i=i*c-f*b;f=f*j-h*c;if(m=Math.sqrt(k*k+i*i+f*f)){m=1/m;k*=m;i*=m;f*=m}else f=i=k=0;h=j*f-b*i;l=b*k-c*f;o=c*i-j*k;if(m=Math.sqrt(h*h+l*l+o*o)){m=1/m;h*=m;l*=m;o*=m}else o=l=h=0;d[0]=k;d[1]=h;d[2]=c;d[3]=0;d[4]=i;d[5]=l;d[6]=j;d[7]=0;d[8]=f;d[9]= o;d[10]=b;d[11]=0;d[12]=-(k*e+i*g+f*a);d[13]=-(h*e+l*g+o*a);d[14]=-(c*e+j*g+b*a);d[15]=1;return d};mat4.str=function(a){return"["+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+", "+a[4]+", "+a[5]+", "+a[6]+", "+a[7]+", "+a[8]+", "+a[9]+", "+a[10]+", "+a[11]+", "+a[12]+", "+a[13]+", "+a[14]+", "+a[15]+"]"};quat4={};quat4.create=function(a){var b=new glMatrixArrayType(4);if(a){b[0]=a[0];b[1]=a[1];b[2]=a[2];b[3]=a[3]}return b};quat4.set=function(a,b){b[0]=a[0];b[1]=a[1];b[2]=a[2];b[3]=a[3];return b}; quat4.calculateW=function(a,b){var c=a[0],d=a[1],e=a[2];if(!b||a==b){a[3]=-Math.sqrt(Math.abs(1-c*c-d*d-e*e));return a}b[0]=c;b[1]=d;b[2]=e;b[3]=-Math.sqrt(Math.abs(1-c*c-d*d-e*e));return b};quat4.inverse=function(a,b){if(!b||a==b){a[0]*=1;a[1]*=1;a[2]*=1;return a}b[0]=-a[0];b[1]=-a[1];b[2]=-a[2];b[3]=a[3];return b};quat4.length=function(a){var b=a[0],c=a[1],d=a[2];a=a[3];return Math.sqrt(b*b+c*c+d*d+a*a)}; quat4.normalize=function(a,b){b||(b=a);var c=a[0],d=a[1],e=a[2],g=a[3],f=Math.sqrt(c*c+d*d+e*e+g*g);if(f==0){b[0]=0;b[1]=0;b[2]=0;b[3]=0;return b}f=1/f;b[0]=c*f;b[1]=d*f;b[2]=e*f;b[3]=g*f;return b};quat4.multiply=function(a,b,c){c||(c=a);var d=a[0],e=a[1],g=a[2];a=a[3];var f=b[0],h=b[1],i=b[2];b=b[3];c[0]=d*b+a*f+e*i-g*h;c[1]=e*b+a*h+g*f-d*i;c[2]=g*b+a*i+d*h-e*f;c[3]=a*b-d*f-e*h-g*i;return c}; quat4.multiplyVec3=function(a,b,c){c||(c=b);var d=b[0],e=b[1],g=b[2];b=a[0];var f=a[1],h=a[2];a=a[3];var i=a*d+f*g-h*e,j=a*e+h*d-b*g,k=a*g+b*e-f*d;d=-b*d-f*e-h*g;c[0]=i*a+d*-b+j*-h-k*-f;c[1]=j*a+d*-f+k*-b-i*-h;c[2]=k*a+d*-h+i*-f-j*-b;return c};quat4.toMat3=function(a,b){b||(b=mat3.create());var c=a[0],d=a[1],e=a[2],g=a[3],f=c+c,h=d+d,i=e+e,j=c*f,k=c*h;c=c*i;var l=d*h;d=d*i;e=e*i;f=g*f;h=g*h;g=g*i;b[0]=1-(l+e);b[1]=k-g;b[2]=c+h;b[3]=k+g;b[4]=1-(j+e);b[5]=d-f;b[6]=c-h;b[7]=d+f;b[8]=1-(j+l);return b}; quat4.toMat4=function(a,b){b||(b=mat4.create());var c=a[0],d=a[1],e=a[2],g=a[3],f=c+c,h=d+d,i=e+e,j=c*f,k=c*h;c=c*i;var l=d*h;d=d*i;e=e*i;f=g*f;h=g*h;g=g*i;b[0]=1-(l+e);b[1]=k-g;b[2]=c+h;b[3]=0;b[4]=k+g;b[5]=1-(j+e);b[6]=d-f;b[7]=0;b[8]=c-h;b[9]=d+f;b[10]=1-(j+l);b[11]=0;b[12]=0;b[13]=0;b[14]=0;b[15]=1;return b};quat4.slerp=function(a,b,c,d){d||(d=a);var e=c;if(a[0]*b[0]+a[1]*b[1]+a[2]*b[2]+a[3]*b[3]<0)e=-1*c;d[0]=1-c*a[0]+e*b[0];d[1]=1-c*a[1]+e*b[1];d[2]=1-c*a[2]+e*b[2];d[3]=1-c*a[3]+e*b[3];return d}; quat4.str=function(a){return"["+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+"]"}; //http://staffwww.itn.liu.se/~stegu/simplexnoise/simplexnoise.pdf //ここのコードをcoffeeScriptで書いてjavaScriptにしたもの。 var SimplexNoise; SimplexNoise = function() { var dot2d, dot3d, dot4d, grad3, grad4, i, p, perm, simplex; grad3 = [[1, 1, 0], [-1, 1, 0], [1, -1, 0], [-1, -1, 0], [1, 0, 1], [-1, 0, 1], [1, 0, -1], [-1, 0, -1], [0, 1, 1], [0, -1, 1], [0, 1, -1], [0, -1, -1]]; grad4 = [[0, 1, 1, 1], [0, 1, 1, -1], [0, 1, -1, 1], [0, 1, -1, -1], [0, -1, 1, 1], [0, -1, 1, -1], [0, -1, -1, 1], [0, -1, -1, -1], [1, 0, 1, 1], [1, 0, 1, -1], [1, 0, -1, 1], [1, 0, -1, -1], [-1, 0, 1, 1], [-1, 0, 1, -1], [-1, 0, -1, 1], [-1, 0, -1, -1], [1, 1, 0, 1], [1, 1, 0, -1], [1, -1, 0, 1], [1, -1, 0, -1], [-1, 1, 0, 1], [-1, 1, 0, -1], [-1, -1, 0, 1], [-1, -1, 0, -1], [1, 1, 1, 0], [1, 1, -1, 0], [1, -1, 1, 0], [1, -1, -1, 0], [-1, 1, 1, 0], [-1, 1, -1, 0], [-1, -1, 1, 0], [-1, -1, -1, 0]]; p = [51, 160, 137, 91, 90, 15, 131, 13, 201, 95, 96, 53, 194, 233, 7, 225, 140, 36, 103, 30, 69, 142, 8, 99, 37, 240, 21, 10, 23, 190, 6, 148, 247, 120, 234, 75, 0, 26, 197, 62, 94, 252, 219, 203, 117, 35, 11, 32, 57, 177, 33, 88, 237, 149, 56, 87, 174, 20, 125, 136, 171, 168, 68, 175, 74, 165, 71, 134, 139, 48, 27, 166, 77, 146, 158, 231, 83, 111, 229, 122, 60, 211, 133, 230, 220, 105, 92, 41, 55, 46, 245, 40, 244, 102, 143, 54, 65, 25, 63, 161, 1, 216, 80, 73, 209, 76, 132, 187, 208, 89, 18, 169, 200, 196, 135, 130, 116, 188, 159, 86, 164, 100, 109, 198, 173, 186, 3, 64, 52, 217, 226, 250, 124, 123, 5, 202, 38, 147, 118, 126, 255, 82, 85, 212, 207, 206, 59, 227, 47, 16, 58, 17, 182, 189, 28, 42, 223, 183, 170, 213, 119, 248, 152, 2, 44, 154, 163, 70, 221, 153, 101, 155, 167, 43, 172, 9, 129, 22, 39, 253, 19, 98, 108, 110, 79, 113, 224, 232, 178, 185, 112, 104, 218, 246, 97, 228, 251, 34, 242, 193, 238, 210, 144, 12, 191, 179, 162, 241, 81, 51, 145, 235, 249, 14, 239, 107, 49, 192, 214, 31, 181, 199, 106, 157, 184, 84, 204, 176, 115, 121, 50, 45, 127, 4, 150, 254, 138, 236, 205, 93, 222, 114, 67, 29, 24, 72, 243, 141, 128, 195, 78, 66, 215, 61, 156, 180]; perm = (function() { var _i, _results; _results = []; for (i = _i = 0; _i < 512; i = ++_i) { _results.push(p[i & 255]); } return _results; })(); simplex = [[0, 1, 2, 3], [0, 1, 3, 2], [0, 0, 0, 0], [0, 2, 3, 1], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [1, 2, 3, 0], [0, 2, 1, 3], [0, 0, 0, 0], [0, 3, 1, 2], [0, 3, 2, 1], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [1, 3, 2, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [1, 2, 0, 3], [0, 0, 0, 0], [1, 3, 0, 2], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [2, 3, 0, 1], [2, 3, 1, 0], [1, 0, 2, 3], [1, 0, 3, 2], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [2, 0, 3, 1], [0, 0, 0, 0], [2, 1, 3, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [2, 0, 1, 3], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [3, 0, 1, 2], [3, 0, 2, 1], [0, 0, 0, 0], [3, 1, 2, 0], [2, 1, 0, 3], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [3, 1, 0, 2], [0, 0, 0, 0], [3, 2, 0, 1], [3, 2, 1, 0]]; dot2d = function(g, x, y) { return g[0] * x + g[1] * y; }; dot3d = function(g, x, y, z) { return g[0] * x + g[1] * y + g[2] * z; }; dot4d = function(g, x, y, z, w) { return g[0] * x + g[1] * y + g[2] * z + g[3] * w; }; return { noise: function() { switch (arguments.length) { case 2: return this.noise2d(arguments[0], arguments[1]); case 3: return this.noise3d(arguments[0], arguments[1], arguments[2]); case 4: return this.noise4d(arguments[0], arguments[1], arguments[2], arguments[3]); } }, noise2d: function(xin, yin) { var F2, G2, X0, Y0, gi0, gi1, gi2, i1, ii, j, j1, jj, n0, n1, n2, s, t, t0, t1, t2, x0, x1, x2, y0, y1, y2; F2 = 0.5 * (Math.sqrt(3) - 1); s = (xin + yin) * F2; i = (xin + s) | 0; j = (yin + s) | 0; G2 = (3 - Math.sqrt(3)) / 6; t = (i + j) * G2; X0 = i - t; Y0 = j - t; x0 = xin - X0; y0 = yin - Y0; if (x0 > y0) { i1 = 1; j1 = 0; } else { i1 = 0; j1 = 1; } x1 = x0 - i1 + G2; y1 = y0 - j1 + G2; x2 = x0 - 1 + 2 * G2; y2 = y0 - 1 + 2 * G2; ii = i & 255; jj = j & 255; gi0 = perm[ii + perm[jj]] % 12; gi1 = perm[ii + i1 + perm[jj + j1]] % 12; gi2 = perm[ii + 1 + perm[jj + 1]] % 12; t0 = 0.5 - x0 * x0 - y0 * y0; if (t0 < 0) { n0 = 0; } else { t0 *= t0; n0 = t0 * t0 * dot2d(grad3[gi0], x0, y0); } t1 = 0.5 - x1 * x1 - y1 * y1; if (t1 < 0) { n1 = 0; } else { t1 *= t1; n1 = t1 * t1 * dot2d(grad3[gi1], x1, y1); } t2 = 0.5 - x2 * x2 - y2 * y2; if (t2 < 0) { n2 = 0; } else { t2 *= t2; n2 = t2 * t2 * dot2d(grad3[gi2], x2, y2); } return 70 * (n0 + n1 + n2); }, noise3d: function(xin, yin, zin) { var F3, G3, X0, Y0, Z0, gi0, gi1, gi2, gi3, i1, i2, ii, j, j1, j2, jj, k, k1, k2, kk, n0, n1, n2, n3, s, t, t0, t1, t2, t3, x0, x1, x2, x3, y0, y1, y2, y3, z0, z1, z2, z3; F3 = 1 / 3; s = (xin + yin + zin) * F3; i = (xin + s) | 0; j = (yin + s) | 0; k = (zin + s) | 0; G3 = 1 / 6; t = (i + j + k) * G3; X0 = i - t; Y0 = j - t; Z0 = k - t; x0 = xin - X0; y0 = yin - Y0; z0 = zin - Z0; if (x0 >= y0) { if (y0 >= z0) { i1 = 1; j1 = 0; k1 = 0; i2 = 1; j2 = 1; k2 = 0; } else if (x0 >= z0) { i1 = 1; j1 = 0; k1 = 0; i2 = 1; j2 = 0; k2 = 1; } else { i1 = 0; j1 = 0; k1 = 1; i2 = 1; j2 = 0; k2 = 1; } } else { if (y0 < z0) { i1 = 0; j1 = 0; k1 = 1; i2 = 0; j2 = 1; k2 = 1; } else if (x0 < z0) { i1 = 0; j1 = 1; k1 = 0; i2 = 0; j2 = 1; k2 = 1; } else { i1 = 0; j1 = 1; k1 = 0; i2 = 1; j2 = 1; k2 = 0; } } x1 = x0 - i1 + G3; y1 = y0 - j1 + G3; z1 = z0 - k1 + G3; x2 = x0 - i2 + 2 * G3; y2 = y0 - j2 + 2 * G3; z2 = z0 - k2 + 2 * G3; x3 = x0 - 1 + 3 * G3; y3 = y0 - 1 + 3 * G3; z3 = z0 - 1 + 3 * G3; ii = i & 255; jj = j & 255; kk = k & 255; gi0 = perm[ii + perm[jj + perm[kk]]] % 12; gi1 = perm[ii + i1 + perm[jj + j1 + perm[kk + k1]]] % 12; gi2 = perm[ii + i2 + perm[jj + j2 + perm[kk + k2]]] % 12; gi3 = perm[ii + 1 + perm[jj + 1 + perm[kk + 1]]] % 12; t0 = 0.6 - x0 * x0 - y0 * y0 - z0 * z0; if (t0 < 0) { n0 = 0; } else { t0 *= t0; n0 = t0 * t0 * dot3d(grad3[gi0], x0, y0, z0); } t1 = 0.6 - x1 * x1 - y1 * y1 - z1 * z1; if (t1 < 0) { n1 = 0; } else { t1 *= t1; n1 = t1 * t1 * dot3d(grad3[gi1], x1, y1, z1); } t2 = 0.6 - x2 * x2 - y2 * y2 - z2 * z2; if (t2 < 0) { n2 = 0; } else { t2 *= t2; n2 = t2 * t2 * dot3d(grad3[gi2], x2, y2, z2); } t3 = 0.6 - x3 * x3 - y3 * y3 - z3 * z3; if (t3 < 0) { n3 = 0; } else { t3 *= t3; n3 = t3 * t3 * dot3d(grad3[gi3], x3, y3, z3); } return 32 * (n0 + n1 + n2 + n3); }, noise4d: function(x, y, z, w) { var F4, G4, W0, X0, Y0, Z0, c, c1, c2, c3, c4, c5, c6, gi0, gi1, gi2, gi3, gi4, i1, i2, i3, ii, j, j1, j2, j3, jj, k, k1, k2, k3, kk, l, l1, l2, l3, ll, n0, n1, n2, n3, n4, s, t, t0, t1, t2, t3, t4, w0, w1, w2, w3, w4, x0, x1, x2, x3, x4, y0, y1, y2, y3, y4, z0, z1, z2, z3, z4; F4 = (Math.sqrt(5) - 1) / 4; G4 = (5 - Math.sqrt(5)) / 20; s = (x + y + z + w) * F4; i = (x + s) | 0; j = (y + s) | 0; k = (z + s) | 0; l = (w + s) | 0; t = (i + j + k + l) * G4; X0 = i - t; Y0 = j - t; Z0 = k - t; W0 = l - t; x0 = x - X0; y0 = y - Y0; z0 = z - Z0; w0 = w - W0; c1 = (x0 > y0 ? 32 : 0); c2 = (x0 > z0 ? 16 : 0); c3 = (y0 > z0 ? 8 : 0); c4 = (x0 > w0 ? 4 : 0); c5 = (y0 > w0 ? 2 : 0); c6 = (z0 > w0 ? 1 : 0); c = c1 + c2 + c3 + c4 + c5 + c6; i1 = (simplex[c][0] >= 3 ? 1 : 0); j1 = (simplex[c][1] >= 3 ? 1 : 0); k1 = (simplex[c][2] >= 3 ? 1 : 0); l1 = (simplex[c][3] >= 3 ? 1 : 0); i2 = (simplex[c][0] >= 2 ? 1 : 0); j2 = (simplex[c][1] >= 2 ? 1 : 0); k2 = (simplex[c][2] >= 2 ? 1 : 0); l2 = (simplex[c][3] >= 2 ? 1 : 0); i3 = (simplex[c][0] >= 1 ? 1 : 0); j3 = (simplex[c][1] >= 1 ? 1 : 0); k3 = (simplex[c][2] >= 1 ? 1 : 0); l3 = (simplex[c][3] >= 1 ? 1 : 0); x1 = x0 - i1 + G4; y1 = y0 - j1 + G4; z1 = z0 - k1 + G4; w1 = w0 - l1 + G4; x2 = x0 - i2 + 2 * G4; y2 = y0 - j2 + 2 * G4; z2 = z0 - k2 + 2 * G4; w2 = w0 - l2 + 2 * G4; x3 = x0 - i3 + 3 * G4; y3 = y0 - j3 + 3 * G4; z3 = z0 - k3 + 3 * G4; w3 = w0 - l3 + 3 * G4; x4 = x0 - 1 + 4 * G4; y4 = y0 - 1 + 4 * G4; z4 = z0 - 1 + 4 * G4; w4 = w0 - 1 + 4 * G4; ii = i & 255; jj = j & 255; kk = k & 255; ll = l & 255; gi0 = perm[ii + perm[jj + perm[kk + perm[ll]]]] % 32; gi1 = perm[ii + i1 + perm[jj + j1 + perm[kk + k1 + perm[ll + l1]]]] % 32; gi2 = perm[ii + i2 + perm[jj + j2 + perm[kk + k2 + perm[ll + l2]]]] % 32; gi3 = perm[ii + i3 + perm[jj + j3 + perm[kk + k3 + perm[ll + l3]]]] % 32; gi4 = perm[ii + 1 + perm[jj + 1 + perm[kk + 1 + perm[ll + 1]]]] % 32; t0 = 0.6 - x0 * x0 - y0 * y0 - z0 * z0 - w0 * w0; if (t0 < 0) { n0 = 0; } else { t0 *= t0; n0 = t0 * t0 * dot4d(grad4[gi0], x0, y0, z0, w0); } t1 = 0.6 - x1 * x1 - y1 * y1 - z1 * z1 - w1 * w1; if (t1 < 0) { n1 = 0; } else { t1 *= t1; n1 = t1 * t1 * dot4d(grad4[gi1], x1, y1, z1, w1); } t2 = 0.6 - x2 * x2 - y2 * y2 - z2 * z2 - w2 * w2; if (t2 < 0) { n2 = 0; } else { t2 *= t2; n2 = t2 * t2 * dot4d(grad4[gi2], x2, y2, z2, w2); } t3 = 0.6 - x3 * x3 - y3 * y3 - z3 * z3 - w3 * w3; if (t3 < 0) { n3 = 0; } else { t3 *= t3; n3 = t3 * t3 * dot4d(grad4[gi3], x3, y3, z3, w3); } t4 = 0.6 - x4 * x4 - y4 * y4 - z4 * z4 - w4 * w4; if (t4 < 0) { n4 = 0; } else { t4 *= t4; n4 = t4 * t4 * dot4d(grad4[gi4], x4, y4, z4, w4); } return 27 * (n0 + n1 + n2 + n3 + n4); } }; }; // Generated by CoffeeScript 1.9.3 (function() { var a, aa, ab, ac, ad, ae, af, ag, ah, ai, amp, animate, boxCoord, br, brr, c, col, color, corners, createAttribute, createIndexBuffer, createTexture, cv, freq, fs, gl, ground, i, imgData, j, k, l, len, mMatrix, map, mapIdx, minecraft, n, noise, o, p, pMatrix, program, q, r, ref, ref1, ref2, ref3, ref4, ref5, ref6, requestAnimationFrame, resize, scale, shader, simplexNoise, source, spline, texmap, time, update, vMatrix, vs, x, xd, xx, y, yd, yy, z; simplexNoise = new SimplexNoise(); scale = 0.03; ground = 25; map = new Int32Array(64 * 64 * 64); for (i = j = 0, ref = map.length; 0 <= ref ? j < ref : j > ref; i = 0 <= ref ? ++j : --j) { map[i] = 0; } for (x = k = 0; k < 64; x = ++k) { for (z = l = 0; l < 64; z = ++l) { y = ground; i = z << 12 | y << 6 | x; map[i] = 9; noise = 0; amp = 1; freq = 1; for (o = p = 0; p <= 3; o = ++p) { amp *= 0.5; noise += amp * simplexNoise.noise(freq * scale * x, freq * scale * z); freq *= 2; } noise = (noise * 15 | 0) + 1; if (noise > 0) { for (y = q = ref1 = ground + 1, ref2 = ground + noise; ref1 <= ref2 ? q < ref2 : q > ref2; y = ref1 <= ref2 ? ++q : --q) { i = z << 12 | y << 6 | x; map[i] = 1; } y = ground + noise; i = z << 12 | y << 6 | x; map[i] = [1, 1, 1, 1, 1, 1, 1, 1, 4, 5, 7, 8][Math.random() * 12 | 0]; } } } for (n = r = 0; r < 50; n = ++r) { x = Math.random() * 64 | 0; y = (Math.random() * 3 | 0) + ground + 8; z = Math.random() * 64 | 0; for (a = aa = 0, ref3 = Math.random() * 3 | 0; 0 <= ref3 ? aa <= ref3 : aa >= ref3; a = 0 <= ref3 ? ++aa : --aa) { i = ((z + a) & 63) << 12 | y << 6 | x; map[i] = 10; } } spline = function(points, t) { var ab, results; results = []; for (i = ab = 0; ab <= 2; i = ++ab) { results.push(0.5 * ((2 * points[1][i]) + (-points[0][i] + points[2][i]) * t + (2 * points[0][i] - 5 * points[1][i] + 4 * points[2][i] - points[3][i]) * Math.pow(t, 2) + (-points[0][i] + 3 * points[1][i] - 3 * points[2][i] + points[3][i]) * Math.pow(t, 3))); } return results; }; corners = (function() { var ab, results; results = []; for (i = ab = 0; ab < 20; i = ++ab) { results.push(mat4.multiplyVec3(mat4.rotateY(mat4.rotateX(mat4.identity(mat4.create()), Math.random() * 2 * Math.PI), Math.random() * 2 * Math.PI), [Math.random(), 0, 0])); } return results; })(); time = 0; update = function() { var coord, points, t; n = time | 0 % corners.length; points = (function() { var ab, ref4, ref5, results; results = []; for (i = ab = ref4 = n, ref5 = n + 3; ref4 <= ref5 ? ab <= ref5 : ab >= ref5; i = ref4 <= ref5 ? ++ab : --ab) { results.push(corners[i % corners.length]); } return results; })(); t = time % 1; coord = spline(points, t); minecraft.camera.position.x = coord[0] * 32 + 32; minecraft.camera.position.y = coord[1] * 5 + 45; minecraft.camera.position.z = coord[2] * 32 + 32; minecraft.camera.rotation.x = Math.cos(time * 3.2) * 0.2 + Math.PI * 0.25; minecraft.camera.rotation.y = time * 0.5; minecraft.callback = function(v, m) { if (m === 8) { minecraft.cube.rotation.x = Math.PI * 0.2; minecraft.cube.rotation.y = -time * 2.3; minecraft.cube.position.y = 0; return minecraft.cubeSet(); } else if (m === 9) { minecraft.cube.rotation.x = time * 5.5; minecraft.cube.rotation.y = time * 4.5; minecraft.cube.position.y = Math.sin(time * 8.5) * 0.8; return minecraft.cubeSet(); } else if (m === 10) { minecraft.cube.rotation.x = -time * 4.3; minecraft.cube.rotation.y = time * 3.4; minecraft.cube.position.y = Math.sin(time * 5.8) * 0.4; return minecraft.cubeSet(); } else { return minecraft.cubeIdentity(); } }; minecraft.draw(); return time += 0.005; }; texmap = new Float32Array(16 * 16 * 4 * 16); for (i = ab = 1; ab < 16; i = ++ab) { br = 255 - ((Math.random() * 96) | 0); for (y = ac = 0, ref4 = 16 * 4; 0 <= ref4 ? ac < ref4 : ac > ref4; y = 0 <= ref4 ? ++ac : --ac) { for (x = ad = 0; ad < 16; x = ++ad) { color = 0x966C4A; if (i === 10) { color = 0xFFFFFF; } if (i === 4) { color = 0x7F7F7F; } if (i !== 4 || ((Math.random() * 3) | 0) === 0) { br = 255 - ((Math.random() * 96) | 0); } if (i === 1) { if (y < (((x * x * 3 + x * 81) >> 2) & 3) + 34) { color = 0x6AAA40; } else if (y < (((x * x * 3 + x * 81) >> 2) & 3) + 35) { br = br * 2 / 3; } if (y < 32) { color = 0x966C4A; } if (y < (((x * x * 3 + x * 81) >> 2) & 3) + 18) { color = 0x6AAA40; } else if (y < (((x * x * 3 + x * 81) >> 2) & 3) + 19) { br = br * 2 / 3; } } if (i === 7) { color = 0x675231; if (x > 0 && x < 15 && ((0 < y && y < 15) || (48 < y && y < 63))) { color = 0xBC9862; xd = x - 7; yd = (y & 15) - 7; if (xd < 0) { xd = 1 - xd; } if (yd < 0) { yd = 1 - yd; } if (yd > xd) { xd = yd; br = 196 - ((Math.random() * 32) | 0) + xd % 3 * 32; } } else if (((Math.random() * 2) | 0) === 0) { br = br * (150 - (x & 1) * 100) / 100; } } if (i === 5) { color = 0xB53A15; if ((x + (y >> 2) * 4) % 8 === 0 || y % 4 === 0) { color = 0xBCAFA5; } } if (i === 9) { color = 0x4040ff; } brr = br; if (y >= 32) { brr *= 0.7; } if (y >= 48) { brr *= 0.7; } if (i === 8) { color = 0x50D937; if (((Math.random() * 2) | 0) === 0) { color = 0; brr = 255; } } col = (((color >> 16) & 0xff) * brr / 255) << 16 | (((color >> 8) & 0xff) * brr / 255) << 8 | ((color & 0xff) * brr / 255); texmap[x + y * 16 + i * 256 * 4] = col; } } } cv = document.createElement('canvas'); c = cv.getContext('2d'); cv.width = 128; cv.height = 128; imgData = c.createImageData(16, 16 * 4); n = 0; for (y = ae = 0; ae < 2; y = ++ae) { for (x = af = 0; af <= 7; x = ++af) { i = 0; for (yy = ag = 0, ref5 = 16 * 4; 0 <= ref5 ? ag < ref5 : ag > ref5; yy = 0 <= ref5 ? ++ag : --ag) { for (xx = ah = 0; ah < 16; xx = ++ah) { color = texmap[xx + yy * 16 + n * 256 * 4]; imgData.data[i++] = (color >> 16) & 0xFF; imgData.data[i++] = (color >> 8) & 0xFF; imgData.data[i++] = color & 0xFF; imgData.data[i++] = 0xff; } } c.putImageData(imgData, x * 16, y * 16 * 4); n++; } } gl = document.getElementById('gl').getContext('experimental-webgl'); gl.clearColor(0, 0, 0.3, 1); gl.enable(gl.DEPTH_TEST); gl.depthFunc(gl.LEQUAL); vs = document.getElementById("vs").text; fs = document.getElementById("fs").text; program = gl.createProgram(); ref6 = [ { code: vs, type: gl.VERTEX_SHADER }, { code: fs, type: gl.FRAGMENT_SHADER } ]; for (ai = 0, len = ref6.length; ai < len; ai++) { source = ref6[ai]; shader = gl.createShader(source.type); gl.shaderSource(shader, source.code); gl.compileShader(shader); gl.attachShader(program, shader); gl.deleteShader(shader); } gl.linkProgram(program); gl.useProgram(program); createAttribute = function(name, stride) { return { buffer: gl.createBuffer(), location: gl.getAttribLocation(program, name), stride: stride, set: function(array) { gl.bindBuffer(gl.ARRAY_BUFFER, this.buffer); gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(array), gl.STATIC_DRAW); gl.bindBuffer(gl.ARRAY_BUFFER, null); gl.enableVertexAttribArray(this.location); gl.bindBuffer(gl.ARRAY_BUFFER, this.buffer); return gl.vertexAttribPointer(this.location, this.stride, gl.FLOAT, false, 0, 0); } }; }; createIndexBuffer = function() { return { buffer: gl.createBuffer(), set: function(index) { gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, this.buffer); gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Int16Array(index), gl.STATIC_DRAW); gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, null); return gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, this.buffer); } }; }; createTexture = function(img) { var texture; texture = gl.createTexture(); gl.bindTexture(gl.TEXTURE_2D, texture); gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, img); gl.generateMipmap(gl.TEXTURE_2D); gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); return gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); }; pMatrix = { location: gl.getUniformLocation(program, "pMatrix"), set: function(m) { return gl.uniformMatrix4fv(this.location, false, m); } }; vMatrix = { location: gl.getUniformLocation(program, "vMatrix"), set: function(m) { return gl.uniformMatrix4fv(this.location, false, m); } }; mMatrix = { location: gl.getUniformLocation(program, "mMatrix"), set: function(m) { return gl.uniformMatrix4fv(this.location, false, m); } }; boxCoord = { location: gl.getUniformLocation(program, "boxCoord"), set: function(v) { return gl.uniform3fv(this.location, v); } }; mapIdx = { location: gl.getUniformLocation(program, "map"), set: function(v) { return gl.uniform1f(this.location, v); } }; minecraft = (function() { var index, indexBuffer, position, positionBuffer, uv, uvBuffer; positionBuffer = createAttribute("position", 3); uvBuffer = createAttribute("uv", 2); indexBuffer = createIndexBuffer(); createTexture(cv); position = [-0.5, 0.5, -0.5, -0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, -0.5, -0.5, 0.5, -0.5, 0.5, 0.5, -0.5, 0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, -0.5, 0.5, -0.5, -0.5, 0.5, -0.5, 0.5, 0.5, -0.5, 0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, -0.5, 0.5, -0.5, -0.5, 0.5, -0.5, 0.5, 0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, -0.5, 0.5, 0.5, -0.5, 0.5]; uv = (function() { var aj, array, s; s = 1 / 8; y = 0; array = []; for (a = aj = 0; aj <= 5; a = ++aj) { if (a === 1 || a === 2 || a === 5) { y += s; } array.push(0, y, s, y, s, y + s, 0, y + s); } return array; })(); index = [0, 2, 1, 0, 3, 2, 4, 5, 6, 4, 6, 7, 8, 9, 10, 8, 10, 11, 12, 15, 14, 12, 14, 13, 16, 17, 18, 16, 18, 19, 20, 23, 22, 20, 22, 21]; positionBuffer.set(position); uvBuffer.set(uv); indexBuffer.set(index); return { size: index.length, aspect: 1, unique: new Int32Array(64 * 64 * 64), camera: { position: { x: 0, y: 0, z: 0 }, rotation: { x: 0, y: 0 } }, cube: { position: { x: 0, y: 0, z: 0 }, rotation: { x: 0, y: 0, z: 0 } }, map: map, callback: function(v, m) {}, cubeSet: function() { return mMatrix.set(mat4.translate(mat4.rotateX(mat4.rotateY(mat4.rotateZ(mat4.identity(mat4.create()), this.cube.rotation.z), this.cube.rotation.y), this.cube.rotation.x), [this.cube.position.x, this.cube.position.y, this.cube.position.z])); }, cubeIdentity: function() { return mMatrix.set(mat4.identity(mat4.create())); }, draw: function() { var aj, ak, al, am, dx, dy, dz, height, len1, list, px, py, pz, ref7, ref8, ref9, results, u, v, vec, w, width, xCos, xSin, yCos, ySin; vMatrix.set(mat4.multiply(mat4.lookAt([0, 0, 0], mat4.multiplyVec3(mat4.rotateX(mat4.rotateY(mat4.identity(mat4.create()), this.camera.rotation.y), this.camera.rotation.x), [0, 0, 1]), [0, 1, 0]), mat4.translate(mat4.identity(mat4.create()), [-this.camera.position.x, -this.camera.position.y, -this.camera.position.z]))); height = 100; width = height * this.aspect; yCos = Math.cos(this.camera.rotation.y); ySin = Math.sin(this.camera.rotation.y); xCos = Math.cos(this.camera.rotation.x); xSin = Math.sin(this.camera.rotation.x); list = []; for (x = aj = 0, ref7 = width; 0 <= ref7 ? aj < ref7 : aj > ref7; x = 0 <= ref7 ? ++aj : --aj) { u = (x - width / 2) / height; for (y = ak = 0, ref8 = height; 0 <= ref8 ? ak < ref8 : ak > ref8; y = 0 <= ref8 ? ++ak : --ak) { v = (y - height / 2) / height; w = 1; z = w * xCos + v * xSin; dx = u * yCos + z * ySin; dy = v * xCos - w * xSin; dz = z * yCos - u * ySin; px = dx; py = dy; pz = dz; n = 0; while (n < 32) { vec = [(px + this.camera.position.x + 0.5) | 0, (py + this.camera.position.y + 0.5) | 0, (pz + this.camera.position.z + 0.5) | 0]; if (map[(vec[2] & 63) << 12 | (vec[1] & 63) << 6 | (vec[0] & 63)] > 0) { list.push(vec); n = 32; } px += dx; py += dy; pz += dz; n++; } } } this.cubeIdentity(); gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); for (i = al = 0, ref9 = this.unique.length; 0 <= ref9 ? al < ref9 : al > ref9; i = 0 <= ref9 ? ++al : --al) { this.unique[i] = 0; } results = []; for (am = 0, len1 = list.length; am < len1; am++) { v = list[am]; i = (v[2] & 63) << 12 | (v[1] & 63) << 6 | (v[0] & 63); if (this.unique[i] === 1) { continue; } this.unique[i] = 1; this.callback({ x: v[0] & 63, y: v[1] & 63, z: v[2] & 63 }, this.map[i]); boxCoord.set(v); mapIdx.set(this.map[i]); results.push(gl.drawElements(gl.TRIANGLES, this.size, gl.UNSIGNED_SHORT, 0)); } return results; } }; })(); requestAnimationFrame = window.mozRequestAnimationFrame || window.webkitRequestAnimationFrame || function(f) { return setTimeout(f, 1000 / 60); }; animate = function() { requestAnimationFrame(animate); return update(); }; window.addEventListener("resize", resize, false); resize = function() { var aspect; gl.canvas.width = window.innerWidth; gl.canvas.height = window.innerHeight; gl.viewport(0, 0, gl.canvas.width, gl.canvas.height); aspect = gl.canvas.width / gl.canvas.height; minecraft.aspect = aspect; return pMatrix.set(mat4.perspective(45, aspect, 0.1, 1000)); }; resize(); animate(); }).call(this);

空中散歩