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brine.js
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brine.js
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// gl-matrix 1.3.7 - https://github.com/toji/gl-matrix/blob/master/LICENSE.md
// https://github.com/toji/gl-matrix
(function(w,D){"object"===typeof exports?module.exports=D(global):"function"===typeof define&&define.amd?define([],function(){return D(w)}):D(w)})(this,function(w){function D(a){return o=a}function G(){return o="undefined"!==typeof Float32Array?Float32Array:Array}var E={};(function(){if("undefined"!=typeof Float32Array){var a=new Float32Array(1),b=new Int32Array(a.buffer);E.invsqrt=function(c){a[0]=c;b[0]=1597463007-(b[0]>>1);var d=a[0];return d*(1.5-0.5*c*d*d)}}else E.invsqrt=function(a){return 1/
Math.sqrt(a)}})();var o=null;G();var r={create:function(a){var b=new o(3);a?(b[0]=a[0],b[1]=a[1],b[2]=a[2]):b[0]=b[1]=b[2]=0;return b},createFrom:function(a,b,c){var d=new o(3);d[0]=a;d[1]=b;d[2]=c;return d},set:function(a,b){b[0]=a[0];b[1]=a[1];b[2]=a[2];return b},equal:function(a,b){return a===b||1.0E-6>Math.abs(a[0]-b[0])&&1.0E-6>Math.abs(a[1]-b[1])&&1.0E-6>Math.abs(a[2]-b[2])},add:function(a,b,c){if(!c||a===c)return a[0]+=b[0],a[1]+=b[1],a[2]+=b[2],a;c[0]=a[0]+b[0];c[1]=a[1]+b[1];c[2]=a[2]+b[2];
return c},subtract:function(a,b,c){if(!c||a===c)return a[0]-=b[0],a[1]-=b[1],a[2]-=b[2],a;c[0]=a[0]-b[0];c[1]=a[1]-b[1];c[2]=a[2]-b[2];return c},multiply:function(a,b,c){if(!c||a===c)return a[0]*=b[0],a[1]*=b[1],a[2]*=b[2],a;c[0]=a[0]*b[0];c[1]=a[1]*b[1];c[2]=a[2]*b[2];return c},negate:function(a,b){b||(b=a);b[0]=-a[0];b[1]=-a[1];b[2]=-a[2];return b},scale:function(a,b,c){if(!c||a===c)return a[0]*=b,a[1]*=b,a[2]*=b,a;c[0]=a[0]*b;c[1]=a[1]*b;c[2]=a[2]*b;return c},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)return b[0]=0,b[1]=0,b[2]=0,b;if(1===g)return b[0]=c,b[1]=d,b[2]=e,b;g=1/g;b[0]=c*g;b[1]=d*g;b[2]=e*g;return b},cross:function(a,b,c){c||(c=a);var d=a[0],e=a[1],a=a[2],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},length:function(a){var b=a[0],c=a[1],a=a[2];return Math.sqrt(b*b+c*c+a*a)},squaredLength:function(a){var b=a[0],c=a[1],a=a[2];return b*b+c*c+a*a},dot:function(a,b){return a[0]*b[0]+a[1]*b[1]+a[2]*b[2]},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)return c[0]=0,c[1]=0,c[2]=0,c;b=1/b;c[0]=d*b;c[1]=e*b;c[2]=a*b;return c},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},dist:function(a,b){var c=b[0]-a[0],d=b[1]-a[1],e=b[2]-a[2];return Math.sqrt(c*c+d*d+e*e)}},H=null,y=new o(4);r.unproject=function(a,b,c,d,e){e||(e=a);H||(H=x.create());var g=H;y[0]=2*(a[0]-d[0])/d[2]-1;y[1]=2*(a[1]-d[1])/d[3]-1;y[2]=
2*a[2]-1;y[3]=1;x.multiply(c,b,g);if(!x.inverse(g))return null;x.multiplyVec4(g,y);if(0===y[3])return null;e[0]=y[0]/y[3];e[1]=y[1]/y[3];e[2]=y[2]/y[3];return e};var L=r.createFrom(1,0,0),M=r.createFrom(0,1,0),N=r.createFrom(0,0,1),z=r.create();r.rotationTo=function(a,b,c){c||(c=k.create());var d=r.dot(a,b);if(1<=d)k.set(O,c);else if(-0.999999>d)r.cross(L,a,z),1.0E-6>r.length(z)&&r.cross(M,a,z),1.0E-6>r.length(z)&&r.cross(N,a,z),r.normalize(z),k.fromAngleAxis(Math.PI,z,c);else{var d=Math.sqrt(2*(1+
d)),e=1/d;r.cross(a,b,z);c[0]=z[0]*e;c[1]=z[1]*e;c[2]=z[2]*e;c[3]=0.5*d;k.normalize(c)}1<c[3]?c[3]=1:-1>c[3]&&(c[3]=-1);return c};r.str=function(a){return"["+a[0]+", "+a[1]+", "+a[2]+"]"};var A={create:function(a){var b=new o(9);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[0]=b[1]=b[2]=b[3]=b[4]=b[5]=b[6]=b[7]=b[8]=0;return b},createFrom:function(a,b,c,d,e,g,f,h,j){var i=new o(9);i[0]=a;i[1]=b;i[2]=c;i[3]=d;i[4]=e;i[5]=g;i[6]=f;i[7]=h;i[8]=j;return i},
determinant:function(a){var b=a[3],c=a[4],d=a[5],e=a[6],g=a[7],f=a[8];return a[0]*(f*c-d*g)+a[1]*(-f*b+d*e)+a[2]*(g*b-c*e)},inverse:function(a,b){var c=a[0],d=a[1],e=a[2],g=a[3],f=a[4],h=a[5],j=a[6],i=a[7],m=a[8],l=m*f-h*i,C=-m*g+h*j,q=i*g-f*j,n=c*l+d*C+e*q;if(!n)return null;n=1/n;b||(b=A.create());b[0]=l*n;b[1]=(-m*d+e*i)*n;b[2]=(h*d-e*f)*n;b[3]=C*n;b[4]=(m*c-e*j)*n;b[5]=(-h*c+e*g)*n;b[6]=q*n;b[7]=(-i*c+d*j)*n;b[8]=(f*c-d*g)*n;return b},multiply:function(a,b,c){c||(c=a);var d=a[0],e=a[1],g=a[2],
f=a[3],h=a[4],j=a[5],i=a[6],m=a[7],a=a[8],l=b[0],C=b[1],q=b[2],n=b[3],k=b[4],p=b[5],o=b[6],s=b[7],b=b[8];c[0]=l*d+C*f+q*i;c[1]=l*e+C*h+q*m;c[2]=l*g+C*j+q*a;c[3]=n*d+k*f+p*i;c[4]=n*e+k*h+p*m;c[5]=n*g+k*j+p*a;c[6]=o*d+s*f+b*i;c[7]=o*e+s*h+b*m;c[8]=o*g+s*j+b*a;return c},multiplyVec2:function(a,b,c){c||(c=b);var d=b[0],b=b[1];c[0]=d*a[0]+b*a[3]+a[6];c[1]=d*a[1]+b*a[4]+a[7];return c},multiplyVec3:function(a,b,c){c||(c=b);var d=b[0],e=b[1],b=b[2];c[0]=d*a[0]+e*a[3]+b*a[6];c[1]=d*a[1]+e*a[4]+b*a[7];c[2]=
d*a[2]+e*a[5]+b*a[8];return c},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},equal:function(a,b){return a===b||1.0E-6>Math.abs(a[0]-b[0])&&1.0E-6>Math.abs(a[1]-b[1])&&1.0E-6>Math.abs(a[2]-b[2])&&1.0E-6>Math.abs(a[3]-b[3])&&1.0E-6>Math.abs(a[4]-b[4])&&1.0E-6>Math.abs(a[5]-b[5])&&1.0E-6>Math.abs(a[6]-b[6])&&1.0E-6>Math.abs(a[7]-b[7])&&1.0E-6>Math.abs(a[8]-b[8])},identity:function(a){a||(a=A.create());a[0]=1;a[1]=0;a[2]=0;a[3]=0;
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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},equal:function(a,b){return a===b||1.0E-6>Math.abs(a[0]-b[0])&&1.0E-6>Math.abs(a[1]-b[1])&&1.0E-6>Math.abs(a[2]-b[2])&&1.0E-6>Math.abs(a[3]-b[3])&&1.0E-6>Math.abs(a[4]-b[4])&&1.0E-6>Math.abs(a[5]-b[5])&&1.0E-6>Math.abs(a[6]-b[6])&&1.0E-6>Math.abs(a[7]-b[7])&&1.0E-6>Math.abs(a[8]-b[8])&&1.0E-6>Math.abs(a[9]-b[9])&&1.0E-6>
Math.abs(a[10]-b[10])&&1.0E-6>Math.abs(a[11]-b[11])&&1.0E-6>Math.abs(a[12]-b[12])&&1.0E-6>Math.abs(a[13]-b[13])&&1.0E-6>Math.abs(a[14]-b[14])&&1.0E-6>Math.abs(a[15]-b[15])},identity:function(a){a||(a=x.create());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},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},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],j=a[7],i=a[8],m=a[9],l=a[10],C=a[11],q=a[12],n=a[13],k=a[14],a=a[15];return q*m*h*e-i*n*h*e-q*f*l*e+g*n*l*e+i*f*k*e-g*m*k*e-q*m*d*j+i*n*d*j+q*c*l*j-b*n*l*j-i*c*k*j+b*m*k*j+q*f*d*C-g*n*d*C-q*c*h*C+b*n*h*C+
g*c*k*C-b*f*k*C-i*f*d*a+g*m*d*a+i*c*h*a-b*m*h*a-g*c*l*a+b*f*l*a},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],j=a[6],i=a[7],m=a[8],l=a[9],k=a[10],q=a[11],n=a[12],o=a[13],p=a[14],r=a[15],s=c*h-d*f,v=c*j-e*f,t=c*i-g*f,u=d*j-e*h,w=d*i-g*h,x=e*i-g*j,y=m*o-l*n,z=m*p-k*n,F=m*r-q*n,A=l*p-k*o,D=l*r-q*o,E=k*r-q*p,B=s*E-v*D+t*A+u*F-w*z+x*y;if(!B)return null;B=1/B;b[0]=(h*E-j*D+i*A)*B;b[1]=(-d*E+e*D-g*A)*B;b[2]=(o*x-p*w+r*u)*B;b[3]=(-l*x+k*w-q*u)*B;b[4]=(-f*E+j*F-i*z)*B;b[5]=
(c*E-e*F+g*z)*B;b[6]=(-n*x+p*t-r*v)*B;b[7]=(m*x-k*t+q*v)*B;b[8]=(f*D-h*F+i*y)*B;b[9]=(-c*D+d*F-g*y)*B;b[10]=(n*w-o*t+r*s)*B;b[11]=(-m*w+l*t-q*s)*B;b[12]=(-f*A+h*z-j*y)*B;b[13]=(c*A-d*z+e*y)*B;b[14]=(-n*u+o*v-p*s)*B;b[15]=(m*u-l*v+k*s)*B;return b},toRotationMat:function(a,b){b||(b=x.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},toMat3:function(a,b){b||(b=A.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},toInverseMat3:function(a,b){var c=a[0],d=a[1],e=a[2],g=a[4],f=a[5],h=a[6],j=a[8],i=a[9],m=a[10],l=m*f-h*i,k=-m*g+h*j,q=i*g-f*j,n=c*l+d*k+e*q;if(!n)return null;n=1/n;b||(b=A.create());b[0]=l*n;b[1]=(-m*d+e*i)*n;b[2]=(h*d-e*f)*n;b[3]=k*n;b[4]=(m*c-e*j)*n;b[5]=(-h*c+e*g)*n;b[6]=q*n;b[7]=(-i*c+d*j)*n;b[8]=(f*c-d*g)*n;return b},multiply:function(a,b,c){c||(c=a);var d=a[0],e=a[1],g=a[2],f=a[3],h=a[4],j=a[5],
i=a[6],m=a[7],l=a[8],k=a[9],q=a[10],n=a[11],o=a[12],p=a[13],r=a[14],a=a[15],s=b[0],v=b[1],t=b[2],u=b[3];c[0]=s*d+v*h+t*l+u*o;c[1]=s*e+v*j+t*k+u*p;c[2]=s*g+v*i+t*q+u*r;c[3]=s*f+v*m+t*n+u*a;s=b[4];v=b[5];t=b[6];u=b[7];c[4]=s*d+v*h+t*l+u*o;c[5]=s*e+v*j+t*k+u*p;c[6]=s*g+v*i+t*q+u*r;c[7]=s*f+v*m+t*n+u*a;s=b[8];v=b[9];t=b[10];u=b[11];c[8]=s*d+v*h+t*l+u*o;c[9]=s*e+v*j+t*k+u*p;c[10]=s*g+v*i+t*q+u*r;c[11]=s*f+v*m+t*n+u*a;s=b[12];v=b[13];t=b[14];u=b[15];c[12]=s*d+v*h+t*l+u*o;c[13]=s*e+v*j+t*k+u*p;c[14]=s*g+
v*i+t*q+u*r;c[15]=s*f+v*m+t*n+u*a;return c},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},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},translate:function(a,b,c){var d=b[0],e=b[1],b=b[2],g,f,h,j,i,m,l,k,q,
n,o,p;if(!c||a===c)return 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],a;g=a[0];f=a[1];h=a[2];j=a[3];i=a[4];m=a[5];l=a[6];k=a[7];q=a[8];n=a[9];o=a[10];p=a[11];c[0]=g;c[1]=f;c[2]=h;c[3]=j;c[4]=i;c[5]=m;c[6]=l;c[7]=k;c[8]=q;c[9]=n;c[10]=o;c[11]=p;c[12]=g*d+i*e+q*b+a[12];c[13]=f*d+m*e+n*b+a[13];c[14]=h*d+l*e+o*b+a[14];c[15]=j*d+k*e+p*b+a[15];return c},scale:function(a,b,c){var d=b[0],e=b[1],b=b[2];if(!c||a===c)return 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,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},rotate:function(a,b,c,d){var e=c[0],g=c[1],c=c[2],f=Math.sqrt(e*e+g*g+c*c),h,j,i,m,l,k,q,n,o,p,r,s,v,t,u,w,x,y,z,A;if(!f)return null;1!==f&&(f=1/f,e*=f,g*=f,c*=f);h=Math.sin(b);j=Math.cos(b);i=1-j;b=a[0];
f=a[1];m=a[2];l=a[3];k=a[4];q=a[5];n=a[6];o=a[7];p=a[8];r=a[9];s=a[10];v=a[11];t=e*e*i+j;u=g*e*i+c*h;w=c*e*i-g*h;x=e*g*i-c*h;y=g*g*i+j;z=c*g*i+e*h;A=e*c*i+g*h;e=g*c*i-e*h;g=c*c*i+j;d?a!==d&&(d[12]=a[12],d[13]=a[13],d[14]=a[14],d[15]=a[15]):d=a;d[0]=b*t+k*u+p*w;d[1]=f*t+q*u+r*w;d[2]=m*t+n*u+s*w;d[3]=l*t+o*u+v*w;d[4]=b*x+k*y+p*z;d[5]=f*x+q*y+r*z;d[6]=m*x+n*y+s*z;d[7]=l*x+o*y+v*z;d[8]=b*A+k*e+p*g;d[9]=f*A+q*e+r*g;d[10]=m*A+n*e+s*g;d[11]=l*A+o*e+v*g;return d},rotateX:function(a,b,c){var d=Math.sin(b),
b=Math.cos(b),e=a[4],g=a[5],f=a[6],h=a[7],j=a[8],i=a[9],m=a[10],l=a[11];c?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]):c=a;c[4]=e*b+j*d;c[5]=g*b+i*d;c[6]=f*b+m*d;c[7]=h*b+l*d;c[8]=e*-d+j*b;c[9]=g*-d+i*b;c[10]=f*-d+m*b;c[11]=h*-d+l*b;return c},rotateY:function(a,b,c){var d=Math.sin(b),b=Math.cos(b),e=a[0],g=a[1],f=a[2],h=a[3],j=a[8],i=a[9],m=a[10],l=a[11];c?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]):c=a;c[0]=e*b+j*-d;c[1]=g*b+i*-d;c[2]=f*b+m*-d;c[3]=h*b+l*-d;c[8]=e*d+j*b;c[9]=g*d+i*b;c[10]=f*d+m*b;c[11]=h*d+l*b;return c},rotateZ:function(a,b,c){var d=Math.sin(b),b=Math.cos(b),e=a[0],g=a[1],f=a[2],h=a[3],j=a[4],i=a[5],m=a[6],l=a[7];c?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]):c=a;c[0]=e*b+j*d;c[1]=g*b+i*d;c[2]=f*b+m*d;c[3]=h*b+l*d;c[4]=e*-d+j*b;c[5]=g*-d+i*b;c[6]=f*-d+m*b;c[7]=h*-d+l*b;return c},frustum:function(a,b,c,d,e,g,f){f||
(f=x.create());var h=b-a,j=d-c,i=g-e;f[0]=2*e/h;f[1]=0;f[2]=0;f[3]=0;f[4]=0;f[5]=2*e/j;f[6]=0;f[7]=0;f[8]=(b+a)/h;f[9]=(d+c)/j;f[10]=-(g+e)/i;f[11]=-1;f[12]=0;f[13]=0;f[14]=-(2*g*e)/i;f[15]=0;return f},perspective:function(a,b,c,d,e){a=c*Math.tan(a*Math.PI/360);b*=a;return x.frustum(-b,b,-a,a,c,d,e)},ortho:function(a,b,c,d,e,g,f){f||(f=x.create());var h=b-a,j=d-c,i=g-e;f[0]=2/h;f[1]=0;f[2]=0;f[3]=0;f[4]=0;f[5]=2/j;f[6]=0;f[7]=0;f[8]=0;f[9]=0;f[10]=-2/i;f[11]=0;f[12]=-(a+b)/h;f[13]=-(d+c)/j;f[14]=
-(g+e)/i;f[15]=1;return f},lookAt:function(a,b,c,d){d||(d=x.create());var e,g,f,h,j,i,m,l,k=a[0],o=a[1],a=a[2];f=c[0];h=c[1];g=c[2];m=b[0];c=b[1];e=b[2];if(k===m&&o===c&&a===e)return x.identity(d);b=k-m;c=o-c;m=a-e;l=1/Math.sqrt(b*b+c*c+m*m);b*=l;c*=l;m*=l;e=h*m-g*c;g=g*b-f*m;f=f*c-h*b;(l=Math.sqrt(e*e+g*g+f*f))?(l=1/l,e*=l,g*=l,f*=l):f=g=e=0;h=c*f-m*g;j=m*e-b*f;i=b*g-c*e;(l=Math.sqrt(h*h+j*j+i*i))?(l=1/l,h*=l,j*=l,i*=l):i=j=h=0;d[0]=e;d[1]=h;d[2]=b;d[3]=0;d[4]=g;d[5]=j;d[6]=c;d[7]=0;d[8]=f;d[9]=
i;d[10]=m;d[11]=0;d[12]=-(e*k+g*o+f*a);d[13]=-(h*k+j*o+i*a);d[14]=-(b*k+c*o+m*a);d[15]=1;return d},fromRotationTranslation:function(a,b,c){c||(c=x.create());var d=a[0],e=a[1],g=a[2],f=a[3],h=d+d,j=e+e,i=g+g,a=d*h,m=d*j,d=d*i,k=e*j,e=e*i,g=g*i,h=f*h,j=f*j,f=f*i;c[0]=1-(k+g);c[1]=m+f;c[2]=d-j;c[3]=0;c[4]=m-f;c[5]=1-(a+g);c[6]=e+h;c[7]=0;c[8]=d+j;c[9]=e-h;c[10]=1-(a+k);c[11]=0;c[12]=b[0];c[13]=b[1];c[14]=b[2];c[15]=1;return c},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]+"]"}},k={create:function(a){var b=new o(4);a?(b[0]=a[0],b[1]=a[1],b[2]=a[2],b[3]=a[3]):b[0]=b[1]=b[2]=b[3]=0;return b},createFrom:function(a,b,c,d){var e=new o(4);e[0]=a;e[1]=b;e[2]=c;e[3]=d;return e},set:function(a,b){b[0]=a[0];b[1]=a[1];b[2]=a[2];b[3]=a[3];return b},equal:function(a,b){return a===b||1.0E-6>Math.abs(a[0]-b[0])&&1.0E-6>Math.abs(a[1]-b[1])&&1.0E-6>Math.abs(a[2]-b[2])&&1.0E-6>
Math.abs(a[3]-b[3])},identity:function(a){a||(a=k.create());a[0]=0;a[1]=0;a[2]=0;a[3]=1;return a}},O=k.identity();k.calculateW=function(a,b){var c=a[0],d=a[1],e=a[2];if(!b||a===b)return a[3]=-Math.sqrt(Math.abs(1-c*c-d*d-e*e)),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};k.dot=function(a,b){return a[0]*b[0]+a[1]*b[1]+a[2]*b[2]+a[3]*b[3]};k.inverse=function(a,b){var c=a[0],d=a[1],e=a[2],g=a[3],c=(c=c*c+d*d+e*e+g*g)?1/c:0;if(!b||a===b)return a[0]*=-c,a[1]*=-c,a[2]*=-c,a[3]*=
c,a;b[0]=-a[0]*c;b[1]=-a[1]*c;b[2]=-a[2]*c;b[3]=a[3]*c;return b};k.conjugate=function(a,b){if(!b||a===b)return a[0]*=-1,a[1]*=-1,a[2]*=-1,a;b[0]=-a[0];b[1]=-a[1];b[2]=-a[2];b[3]=a[3];return b};k.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)};k.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(0===f)return b[0]=0,b[1]=0,b[2]=0,b[3]=0,b;f=1/f;b[0]=c*f;b[1]=d*f;b[2]=e*f;b[3]=g*f;return b};k.add=function(a,b,c){if(!c||
a===c)return a[0]+=b[0],a[1]+=b[1],a[2]+=b[2],a[3]+=b[3],a;c[0]=a[0]+b[0];c[1]=a[1]+b[1];c[2]=a[2]+b[2];c[3]=a[3]+b[3];return c};k.multiply=function(a,b,c){c||(c=a);var d=a[0],e=a[1],g=a[2],a=a[3],f=b[0],h=b[1],j=b[2],b=b[3];c[0]=d*b+a*f+e*j-g*h;c[1]=e*b+a*h+g*f-d*j;c[2]=g*b+a*j+d*h-e*f;c[3]=a*b-d*f-e*h-g*j;return c};k.multiplyVec3=function(a,b,c){c||(c=b);var d=b[0],e=b[1],g=b[2],b=a[0],f=a[1],h=a[2],a=a[3],j=a*d+f*g-h*e,i=a*e+h*d-b*g,k=a*g+b*e-f*d,d=-b*d-f*e-h*g;c[0]=j*a+d*-b+i*-h-k*-f;c[1]=i*a+
d*-f+k*-b-j*-h;c[2]=k*a+d*-h+j*-f-i*-b;return c};k.scale=function(a,b,c){if(!c||a===c)return a[0]*=b,a[1]*=b,a[2]*=b,a[3]*=b,a;c[0]=a[0]*b;c[1]=a[1]*b;c[2]=a[2]*b;c[3]=a[3]*b;return c};k.toMat3=function(a,b){b||(b=A.create());var c=a[0],d=a[1],e=a[2],g=a[3],f=c+c,h=d+d,j=e+e,i=c*f,k=c*h,c=c*j,l=d*h,d=d*j,e=e*j,f=g*f,h=g*h,g=g*j;b[0]=1-(l+e);b[1]=k+g;b[2]=c-h;b[3]=k-g;b[4]=1-(i+e);b[5]=d+f;b[6]=c+h;b[7]=d-f;b[8]=1-(i+l);return b};k.toMat4=function(a,b){b||(b=x.create());var c=a[0],d=a[1],e=a[2],g=
a[3],f=c+c,h=d+d,j=e+e,i=c*f,k=c*h,c=c*j,l=d*h,d=d*j,e=e*j,f=g*f,h=g*h,g=g*j;b[0]=1-(l+e);b[1]=k+g;b[2]=c-h;b[3]=0;b[4]=k-g;b[5]=1-(i+e);b[6]=d+f;b[7]=0;b[8]=c+h;b[9]=d-f;b[10]=1-(i+l);b[11]=0;b[12]=0;b[13]=0;b[14]=0;b[15]=1;return b};k.slerp=function(a,b,c,d){d||(d=a);var e=a[0]*b[0]+a[1]*b[1]+a[2]*b[2]+a[3]*b[3],g,f;if(1<=Math.abs(e))return d!==a&&(d[0]=a[0],d[1]=a[1],d[2]=a[2],d[3]=a[3]),d;g=Math.acos(e);f=Math.sqrt(1-e*e);if(0.001>Math.abs(f))return d[0]=0.5*a[0]+0.5*b[0],d[1]=0.5*a[1]+0.5*b[1],
d[2]=0.5*a[2]+0.5*b[2],d[3]=0.5*a[3]+0.5*b[3],d;e=Math.sin((1-c)*g)/f;c=Math.sin(c*g)/f;d[0]=a[0]*e+b[0]*c;d[1]=a[1]*e+b[1]*c;d[2]=a[2]*e+b[2]*c;d[3]=a[3]*e+b[3]*c;return d};k.fromRotationMatrix=function(a,b){b||(b=k.create());var c=a[0]+a[4]+a[8],d;if(0<c)d=Math.sqrt(c+1),b[3]=0.5*d,d=0.5/d,b[0]=(a[7]-a[5])*d,b[1]=(a[2]-a[6])*d,b[2]=(a[3]-a[1])*d;else{d=k.fromRotationMatrix.s_iNext=k.fromRotationMatrix.s_iNext||[1,2,0];c=0;a[4]>a[0]&&(c=1);a[8]>a[3*c+c]&&(c=2);var e=d[c],g=d[e];d=Math.sqrt(a[3*c+
c]-a[3*e+e]-a[3*g+g]+1);b[c]=0.5*d;d=0.5/d;b[3]=(a[3*g+e]-a[3*e+g])*d;b[e]=(a[3*e+c]+a[3*c+e])*d;b[g]=(a[3*g+c]+a[3*c+g])*d}return b};A.toQuat4=k.fromRotationMatrix;(function(){var a=A.create();k.fromAxes=function(b,c,d,e){a[0]=c[0];a[3]=c[1];a[6]=c[2];a[1]=d[0];a[4]=d[1];a[7]=d[2];a[2]=b[0];a[5]=b[1];a[8]=b[2];return k.fromRotationMatrix(a,e)}})();k.identity=function(a){a||(a=k.create());a[0]=0;a[1]=0;a[2]=0;a[3]=1;return a};k.fromAngleAxis=function(a,b,c){c||(c=k.create());var a=0.5*a,d=Math.sin(a);
c[3]=Math.cos(a);c[0]=d*b[0];c[1]=d*b[1];c[2]=d*b[2];return c};k.toAngleAxis=function(a,b){b||(b=a);var c=a[0]*a[0]+a[1]*a[1]+a[2]*a[2];0<c?(b[3]=2*Math.acos(a[3]),c=E.invsqrt(c),b[0]=a[0]*c,b[1]=a[1]*c,b[2]=a[2]*c):(b[3]=0,b[0]=1,b[1]=0,b[2]=0);return b};k.str=function(a){return"["+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+"]"};var J={create:function(a){var b=new o(2);a?(b[0]=a[0],b[1]=a[1]):(b[0]=0,b[1]=0);return b},createFrom:function(a,b){var c=new o(2);c[0]=a;c[1]=b;return c},add:function(a,b,c){c||
(c=b);c[0]=a[0]+b[0];c[1]=a[1]+b[1];return c},subtract:function(a,b,c){c||(c=b);c[0]=a[0]-b[0];c[1]=a[1]-b[1];return c},multiply:function(a,b,c){c||(c=b);c[0]=a[0]*b[0];c[1]=a[1]*b[1];return c},divide:function(a,b,c){c||(c=b);c[0]=a[0]/b[0];c[1]=a[1]/b[1];return c},scale:function(a,b,c){c||(c=a);c[0]=a[0]*b;c[1]=a[1]*b;return c},dist:function(a,b){var c=b[0]-a[0],d=b[1]-a[1];return Math.sqrt(c*c+d*d)},set:function(a,b){b[0]=a[0];b[1]=a[1];return b},equal:function(a,b){return a===b||1.0E-6>Math.abs(a[0]-
b[0])&&1.0E-6>Math.abs(a[1]-b[1])},negate:function(a,b){b||(b=a);b[0]=-a[0];b[1]=-a[1];return b},normalize:function(a,b){b||(b=a);var c=a[0]*a[0]+a[1]*a[1];0<c?(c=Math.sqrt(c),b[0]=a[0]/c,b[1]=a[1]/c):b[0]=b[1]=0;return b},cross:function(a,b,c){a=a[0]*b[1]-a[1]*b[0];if(!c)return a;c[0]=c[1]=0;c[2]=a;return c},length:function(a){var b=a[0],a=a[1];return Math.sqrt(b*b+a*a)},squaredLength:function(a){var b=a[0],a=a[1];return b*b+a*a},dot:function(a,b){return a[0]*b[0]+a[1]*b[1]},direction:function(a,
b,c){c||(c=a);var d=a[0]-b[0],a=a[1]-b[1],b=d*d+a*a;if(!b)return c[0]=0,c[1]=0,c[2]=0,c;b=1/Math.sqrt(b);c[0]=d*b;c[1]=a*b;return c},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]);return d},str:function(a){return"["+a[0]+", "+a[1]+"]"}},I={create:function(a){var b=new o(4);a?(b[0]=a[0],b[1]=a[1],b[2]=a[2],b[3]=a[3]):b[0]=b[1]=b[2]=b[3]=0;return b},createFrom:function(a,b,c,d){var e=new o(4);e[0]=a;e[1]=b;e[2]=c;e[3]=d;return e},set:function(a,b){b[0]=a[0];b[1]=a[1];
b[2]=a[2];b[3]=a[3];return b},equal:function(a,b){return a===b||1.0E-6>Math.abs(a[0]-b[0])&&1.0E-6>Math.abs(a[1]-b[1])&&1.0E-6>Math.abs(a[2]-b[2])&&1.0E-6>Math.abs(a[3]-b[3])},identity:function(a){a||(a=I.create());a[0]=1;a[1]=0;a[2]=0;a[3]=1;return a},transpose:function(a,b){if(!b||a===b){var c=a[1];a[1]=a[2];a[2]=c;return a}b[0]=a[0];b[1]=a[2];b[2]=a[1];b[3]=a[3];return b},determinant:function(a){return a[0]*a[3]-a[2]*a[1]},inverse:function(a,b){b||(b=a);var c=a[0],d=a[1],e=a[2],g=a[3],f=c*g-e*
d;if(!f)return null;f=1/f;b[0]=g*f;b[1]=-d*f;b[2]=-e*f;b[3]=c*f;return b},multiply:function(a,b,c){c||(c=a);var d=a[0],e=a[1],g=a[2],a=a[3];c[0]=d*b[0]+e*b[2];c[1]=d*b[1]+e*b[3];c[2]=g*b[0]+a*b[2];c[3]=g*b[1]+a*b[3];return c},rotate:function(a,b,c){c||(c=a);var d=a[0],e=a[1],g=a[2],a=a[3],f=Math.sin(b),b=Math.cos(b);c[0]=d*b+e*f;c[1]=d*-f+e*b;c[2]=g*b+a*f;c[3]=g*-f+a*b;return c},multiplyVec2:function(a,b,c){c||(c=b);var d=b[0],b=b[1];c[0]=d*a[0]+b*a[1];c[1]=d*a[2]+b*a[3];return c},scale:function(a,
b,c){c||(c=a);var d=a[1],e=a[2],g=a[3],f=b[0],b=b[1];c[0]=a[0]*f;c[1]=d*b;c[2]=e*f;c[3]=g*b;return c},str:function(a){return"["+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+"]"}},K={create:function(a){var b=new o(4);a?(b[0]=a[0],b[1]=a[1],b[2]=a[2],b[3]=a[3]):(b[0]=0,b[1]=0,b[2]=0,b[3]=0);return b},createFrom:function(a,b,c,d){var e=new o(4);e[0]=a;e[1]=b;e[2]=c;e[3]=d;return e},add:function(a,b,c){c||(c=b);c[0]=a[0]+b[0];c[1]=a[1]+b[1];c[2]=a[2]+b[2];c[3]=a[3]+b[3];return c},subtract:function(a,b,c){c||(c=
b);c[0]=a[0]-b[0];c[1]=a[1]-b[1];c[2]=a[2]-b[2];c[3]=a[3]-b[3];return c},multiply:function(a,b,c){c||(c=b);c[0]=a[0]*b[0];c[1]=a[1]*b[1];c[2]=a[2]*b[2];c[3]=a[3]*b[3];return c},divide:function(a,b,c){c||(c=b);c[0]=a[0]/b[0];c[1]=a[1]/b[1];c[2]=a[2]/b[2];c[3]=a[3]/b[3];return c},scale:function(a,b,c){c||(c=a);c[0]=a[0]*b;c[1]=a[1]*b;c[2]=a[2]*b;c[3]=a[3]*b;return c},set:function(a,b){b[0]=a[0];b[1]=a[1];b[2]=a[2];b[3]=a[3];return b},equal:function(a,b){return a===b||1.0E-6>Math.abs(a[0]-b[0])&&1.0E-6>
Math.abs(a[1]-b[1])&&1.0E-6>Math.abs(a[2]-b[2])&&1.0E-6>Math.abs(a[3]-b[3])},negate:function(a,b){b||(b=a);b[0]=-a[0];b[1]=-a[1];b[2]=-a[2];b[3]=-a[3];return b},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)},squaredLength:function(a){var b=a[0],c=a[1],d=a[2],a=a[3];return b*b+c*c+d*d+a*a},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]);d[3]=a[3]+c*(b[3]-a[3]);return d},str:function(a){return"["+a[0]+", "+
a[1]+", "+a[2]+", "+a[3]+"]"}};w&&(w.glMatrixArrayType=o,w.MatrixArray=o,w.setMatrixArrayType=D,w.determineMatrixArrayType=G,w.glMath=E,w.vec2=J,w.vec3=r,w.vec4=K,w.mat2=I,w.mat3=A,w.mat4=x,w.quat4=k);return{glMatrixArrayType:o,MatrixArray:o,setMatrixArrayType:D,determineMatrixArrayType:G,glMath:E,vec2:J,vec3:r,vec4:K,mat2:I,mat3:A,mat4:x,quat4:k}});
function ListNode(newitem){
this.item = newitem;
}
ListNode.prototype.item = null;
ListNode.prototype.link = null;
/**
* Creates a new instance of List.
*
* @class A singly linked list of nodes, each with item and link properties. Unlike other languages, a list can contain unrelated object types at the same time.
* However, this may result in unexpected results when processing its contents with a loop.
* @property {ListNode} head Pointer to the first node in the list.
* @property {ListNode} tail Pointer to the last node in the list.
* @property {number} length The number of nodes in the list.
*/
function List(){
}
List.prototype.head = null;
List.prototype.tail = null;
List.prototype.length = 0;
/**
* Inserts the given object at the end of the list.
*
* @param {Object} object The object to be inserted.
*/
List.prototype.push = function(object){
var newNode = new ListNode(object);
if(this.head === null){
this.head = newNode;
}else{
this.tail.link = newNode;
}
this.tail = newNode;
this.length++;
}
/**
* Inserts the given object at the front of the list.
*
* @param {Object} object The object to be inserted.
*/
List.prototype.push_front = function(object){
var newNode = new ListNode(object);
if(this.head === null){
this.tail = newNode;
}else{
newNode.link = this.head;
}
this.head = newNode;
this.length++;
}
/**
* Inserts the given object at the front of the list.
*
* @param {Object} object The object to be inserted.
*/
List.prototype.push_back = function(object){
this.push(object);
}
/**
* Removes the head of the list and returns its item.
*
* @return {Object} The contents of the head node.
*/
List.prototype.pop = function(){
var item = null;
if(this.head != null){
item = this.head.item;
if(this.tail == this.head){
this.tail = null;
}
this.head = this.head.link;
this.length--;
}
return item;
}
/**
* Removes the head of the list and returns its item.
*
* @return {Object} The contents of the head node.
*/
List.prototype.pop_front = function(){
return this.pop();
}
/**
* Removes the head of the list and returns its item.
*
* @return {Object} The contents of the head node.
*/
List.prototype.pop_back = function(){
var item = null;
if(this.head != null && this.tail != null){
item = this.tail.item;
this.remove(item);
//this.head = this.head.link;
//this.length--;
}
return item;
}
/**
* Removes the first instance found of the given object from the list. If there is more than one instance the others remain.
*
* @param {Object} object The object to remove.
* @return {bool} True if the object was found and removed, false otherwise.
*/
List.prototype.remove = function(object){
if(this.head != null){
if(this.head.item === object){
this.head = this.head.link;
this.length--;
return true;
}
var prev = this.head;
var curr = this.head.link;
while(curr !== null){
if(curr.item === object){
prev.link = curr.link;
if(this.tail.item === object){
this.tail = prev;
}
this.length--;
return true;
}
prev = curr;
curr = curr.link;
}
}
return false;
}
/**
* Searches the list for the given object.
*
* @param {Object} object The object to be looked for.
* @return {bool} True if found, false otherwise.
*/
List.prototype.find = function(object){
for(var node = this.head; node !== null; node = node.link){
if(node.item == object){
return true;
}
}
return false;
}
/**
* Returns the object in the node at the given index.
*
* @param {Object} index The node index to retrieve an object from. null if the index is out of range.
*/
List.prototype.getAt = function(index){
var item = null;
var cur = this.head;
if(index >= 0 && index < this.length){
while(index > 0 && cur != null){
cur = cur.link;
index--;
}
item = cur.item;
}
return item;
}
/**
* For each item in the list the given function is called with the item and the given additional parameters as parameters.
*
* @param {Object} func The function to be called.
* @param {Object} params Additional parameters to pass to the function.
*/
List.prototype.foreach = function(func, params){
for(var node = this.head; node !== null; node = node.link){
func(node.item, params);
}
}
/**
* Joins the list into a string for debugging purposes.
*
* @return {string} The list as a string.
*/
List.prototype.toString = function(){
var count = 0;
var curr = this.head;
var dbgstring = "";
while(curr !== null){
dbgstring += "["+count+": ";
dbgstring += curr.item+"]";
//dbgstring += "--Link: "+curr.link+"\n";
curr = curr.link;
count++;
}
return dbgstring;
}
/**
* Creates a new instance of Vector.
*
* @class A simple mathematical vector that can be used for position, color, or anything else that can take advantage of a 4 float vector. Although it has 4 floats it can be used as a 2 or 3 float vector.
* @param {number} x The initial x value.
* @param {number} y The initial y value.
* @param {number} z Optional: The initial z value.
* @property {number} x The x value.
* @property {number} y The y value.
* @property {number} z The z value.
* @property {number} w The w value.
* @property {number} r An alias for x.
* @property {number} g An alias for y.
* @property {number} b An alias for z.
* @property {number} a An alias for w.
* @property {number} length The length of the vector.
*/
function Vector(x, y, z){
this.x = x;
this.y = y;
this.z = z ? z : 0;
this.w = 0;
}
Vector.prototype.x = 0;
Vector.prototype.y = 0;
Vector.prototype.z = 0;
Vector.prototype.w = 0;
Vector.prototype.r = 0;
Vector.prototype.g = 0;
Vector.prototype.b = 0;
Vector.prototype.a = 0;
Vector.prototype.length = 0;
Vector.prototype = {
get r(){
return this.x;
},
set r(val){
this.x = val;
},
get g(){
return this.y;
},
set g(val){
this.y = val;
},
get b(){
return this.z;
},
set b(val){
this.z = val;
},
get a(){
return this.w;
},
set a(val){
this.w = val;
},
get length(){
return Math.sqrt((this.x*this.x)+(this.y*this.y)+(this.z*this.z)+(this.w*this.w));
}
}
/**
* Adds the given vector to the calling vector and returns a new vector.
*
* @param {Vector} val The vector to add to the caller.
* @return {Vector} The result.
*/
Vector.prototype.add = function(val){
var temp = new Vector(0,0,0);
temp.x = this.x+val.x;
temp.y = this.y+val.y;
temp.z = this.z+val.z;
temp.w = this.w+val.w;
return temp;
}
/**
* Subtracts the given vector from the calling vector and returns a new vector.
*
* @param {Vector} val The vector to subtract from the caller.
* @return {Vector} The result.
*/
Vector.prototype.sub = function(val){
var temp = new Vector(0,0,0);
temp.x = this.x-val.x;
temp.y = this.y-val.y;
temp.z = this.z-val.z;
temp.w = this.w-val.w;
return temp;
}
/**
* Multiplies the components of given vector with those of the calling vector and returns a new vector.
* OR
* Scales the calling vector by the given scalar.
*
* @param {Vector or number} val The vector or scalar to multiply the caller by.
* @return {Vector} The result.
*/
Vector.prototype.mult = function(val){
var temp = new Vector(0,0,0);
if(val instanceof Vector){
temp.x = this.x*val.x;
temp.y = this.y*val.y;
temp.z = this.z*val.z;
temp.w = this.w*val.w;
}else{
temp.x = this.x*val;
temp.y = this.y*val;
temp.z = this.z*val;
temp.w = this.w*val;
}
return temp;
}
/**
* Divides the components of given vector with those of the calling vector and returns a new vector.
* OR
* Divides the calling vector by the given scalar.
*
* @param {Vector or number} val The vector or scalar to divide the caller by.
* @return {Vector} The result.
*/
Vector.prototype.div = function(val){
var temp = new Vector(0,0,0);
if(val instanceof Vector){
temp.x = this.x/val.x;
temp.y = this.y/val.y;
temp.z = this.z/val.z;
temp.w = this.w/val.w;
}else{
temp.x = this.x/val;
temp.y = this.y/val;
temp.z = this.z/val;
temp.w = this.w/val;
}
return temp;
}
/**
* Negates the calling vector and returns a new vector.
*
* @return {Vector} The result.
*/
Vector.prototype.neg = function(){
var temp = new Vector(0,0,0);
temp.x = -this.x;
temp.y = -this.y;
temp.z = -this.z;
temp.w = -this.w;
return temp;
}
/**
* Compares the components of the caller to the given vector to determine if they are equal.
*
* @param {Vector} val The vector to compare the caller to.
* @return {Vector} The result.
*/
Vector.prototype.equals = function(val){
if(this.x != val.x){
return false;
}
if(this.y != val.y){
return false;
}
if(this.z != val.z){
return false;
}
if(this.w != val.w){
return false;
}
return true;
}
/**
* Calculates the cross product between the caller and the given vector. callerXval
*
* @param {Vector} val The vector to cross the caller with.
* @return {Vector} The result.
*/
Vector.prototype.cross = function(val){
var temp = new Vector(0,0,0);
temp.x = this.y*val.z-this.z*val.y;
temp.y = this.z*val.x-this.x*val.z;
temp.z = this.x*val.y-this.y*val.x;
return temp;
}
/**
* Calculates the dot product between the caller and the given vector.
*
* @param {Vector} val The vector to dot with the caller.
* @return {number} The result.
*/
Vector.prototype.dot = function(val){
return this.x*val.x+this.y*val.y+this.z*val.z+this.w*val.w;
}
/**
* Returns a normalized vector.
*
* @return {Vector} The normalized result.
*/
Vector.prototype.normalize = function(){
var length = this.length;
var temp = new Vector(0,0,0);
temp.x = this.x/length;
temp.y = this.y/length;
temp.z = this.z/length;
temp.w = this.w/length;
return temp;
}
/**
* Joins the vector into a debug string.
*
* @return {string} Vector as a string.
*/
Vector.prototype.toString = function(){
return "["+this.x+","+this.y+","+this.z+","+this.w+"]";
}
/**
* Creates a Vector from a vector represented by an array.
*
* @param {Array} arr
* @return {Vector} A new vector.
*/
Vector.arrayVector = function(arr){
//function arrayVector(arr){
var vec = new Vector(arr[0],arr[1], arr[2] ? arr[2] : 0);
vec.w = arr[3] ? arr[3] : 0;
return vec;
}
/**
* Creates a new instance of ResourceMonitor or returns the singleton instance.
*
* @class Singleton that keeps track of loading resources. By default there is a global reference called Resources.
* @property {ResourceMonitor} instance The singlton instance.
* @property {number} totalItems The total number of items that have been requested for loading.
* @property {number} leftToLoad The number of items that are still loading.
*/
function ResourceMonitor(){
if(ResourceMonitor.prototype.instance){
return ResourceMonitor.prototype.instance;
}
ResourceMonitor.prototype.instance = this;
this.loadList = new List();
this.totalItems = 0;
this.leftToLoad = 0;
}
ResourceMonitor.prototype.instance = null;
ResourceMonitor.prototype.loadList = new List();
ResourceMonitor.prototype.totalItems = 0;
ResourceMonitor.prototype.leftToLoad = 0;
ResourceMonitor.prototype.addToLoad = function(){
this.totalItems++;
this.leftToLoad++;
}
/**
* Returns the number of items that are still loading.
*
* @return {number} The number of items left to load.
*/
ResourceMonitor.prototype.getLeftToLoad = function(){
for(var font in Fonts.fonts){
//for(var font = 0; font < Fonts.fonts.length; font++){
if(!Fonts.fonts[font].loaded){
Fonts.fonts[font].checkIfLoaded();
}
}
return this.leftToLoad;
}
/**
* Returns the percentage of loaded items.
*
* @return {number} The percentage.
*/
ResourceMonitor.prototype.percentLoaded = function(){
for(var font in Fonts.fonts){
//for(var font = 0; font < Fonts.fonts.length; font++){
if(!Fonts.fonts[font].loaded){
Fonts.fonts[font].checkIfLoaded();
}
}
return this.leftToLoad/this.totalItems;
}
var Resources = new ResourceMonitor();
/**
* Creates a new instance of TextureManager or returns the singleton instance.
*
* @class Singleton that manages image loading, texture creation, and texture reuse. By default there is a global reference called Textures.
* @property {TextureManager} instance The singlton instance.
* @property {Array<Images>} imgs Array of loaded images indexed by their src.
*/
function TextureManager(){
if(TextureManager.prototype.instance){
return TextureManager.prototype.instance;
}
TextureManager.prototype.instance = this;
this.imgs = new Array();
this.waitingList = new List();
}
TextureManager.prototype.instance = null;
TextureManager.prototype.imgs = new Array();
TextureManager.prototype.waitingList = new List();
/**
* Returns an image if it is already loaded, otherwise it starts loading the image source and returns a new image.
*
* @param {string} src The image source to be loaded.
* @param {bool} crossDomain Optional: If the image is not in the same domain as the calling script this must be true.
* @param {bool} logOnLoad Optional: If true a debug statement is printed when it finishes loading.
* @return {Image} The image object that the requested source will be loaded into.
*/
TextureManager.prototype.load = function(src, crossDomain, logOnLoad){
if(this.imgs[src] == undefined){
Resources.addToLoad();
this.imgs[src] = new Image();
this.imgs[src].loaded = false;
if(crossDomain){
this.imgs[src].crossOrigin = "anonymous";
}
this.imgs[src].src = src;
this.imgs[src].onload = function(){
//if(logOnLoad == undefined || logOnLoad){
if(logOnLoad){
println(this.src+" loaded");
}
Resources.leftToLoad--;
if(!Textures.createTexture(this)){
Textures.waitingList.push(this);
}
this.loaded = true;
}
this.imgs[src].onabort = function(){
alert("there was an error");
}
}
return this.imgs[src];
}
TextureManager.prototype.create = function(){
this.waitingList.foreach(Textures.createTexture);
}
/**
* Creates a WebGL texture from the given image. Can also create a texure out of a canvas object allowing the use of 2D canvas drawings or text as textures.
* image.texture is set to this new texture
*
* @param {Image} image The image to use as the texture data.
* @return {bool} Returns true if the texture was created successfully.
*/
TextureManager.prototype.createTexture = function(image){
if(ctx != undefined){
if(ctx.createTexture){
var texture = image.texture;
if(texture == undefined){
texture = ctx.createTexture();
}
texture.image = image;
ctx.bindTexture(ctx.TEXTURE_2D, texture);
ctx.pixelStorei(ctx.UNPACK_FLIP_Y_WEBGL, true);
ctx.pixelStorei(ctx.UNPACK_PREMULTIPLY_ALPHA_WEBGL, true);
ctx.texImage2D(ctx.TEXTURE_2D, 0, ctx.RGBA, ctx.RGBA, ctx.UNSIGNED_BYTE, texture.image);
//ctx.texParameteri(ctx.TEXTURE_2D, ctx.TEXTURE_MAG_FILTER, ctx.NEAREST);
//ctx.texParameteri(ctx.TEXTURE_2D, ctx.TEXTURE_MIN_FILTER, ctx.NEAREST);
ctx.texParameteri(ctx.TEXTURE_2D, ctx.TEXTURE_WRAP_S, ctx.CLAMP_TO_EDGE);
ctx.texParameteri(ctx.TEXTURE_2D, ctx.TEXTURE_WRAP_T, ctx.CLAMP_TO_EDGE);
ctx.texParameteri(ctx.TEXTURE_2D, ctx.TEXTURE_MIN_FILTER, ctx.LINEAR);
ctx.texParameteri(ctx.TEXTURE_2D, ctx.TEXTURE_MAG_FILTER, ctx.LINEAR);
//ctx.generateMipmap(ctx.TEXTURE_2D);
ctx.bindTexture(ctx.TEXTURE_2D, null);
image.texture = texture;
return true;
}
}
return false;
}
var Textures = new TextureManager();
/**
* Creates a new instance of SoundManager or returns the singleton instance.
*
* @class Singleton that manages sound loading and playing. By default there is a global reference called Sounds.
* @property {SoundManager} instance The singlton instance.
* @property {Array<Audio>} snds Array of loaded sounds indexed by their src.
* @property {bool} muted The muted state of all sounds. Use toggleMuted() to change state.
*/
function SoundManager(){
if(SoundManager.prototype.instance){
return SoundManager.prototype.instance;
}
SoundManager.prototype.instance = this;
this.snds = new Array();
this.muted = false;
}
SoundManager.prototype.instance = null;
SoundManager.prototype.snds = new Array();
SoundManager.prototype.muted = false;
//Returns a sound if it is already loaded and there is a sound object that is not playing (creates a pool of sound objects), otherwise it starts loading the sound source and returns a new sound
SoundManager.prototype.load = function(src){
if(this.snds[src] == undefined){
Resources.addToLoad();
this.snds[src] = new List();
return Sounds.makeNewAudio(src, true);
}
for(var node = this.snds[src].head; node != null; node = node.link){
var snd = node.item;
//if(!snd.isPlaying){
if(!snd.isPlaying || snd.currentTime == snd.duration){
snd.src = src;
return snd;
}
}
return Sounds.makeNewAudio(src, false);
}
SoundManager.prototype.makeNewAudio = function(src, loading){
var newAudio = new Audio();
newAudio.loaded = false;
newAudio.isPlaying = false;
newAudio.muted = Sounds.muted;
newAudio.addEventListener("canplaythrough", function(){
//newAudio.oncanplaythrough = function(e){
if(loading && !this.loaded){
println(this.src+" loaded");
Resources.leftToLoad--;
this.loaded = true;
}
}
, false);
var audioProto = newAudio.constructor.prototype;
newAudio.play = function(){
this.isPlaying = true;
audioProto.play.call(this);
}
newAudio.pause = function(){
this.isPlaying = false;
audioProto.pause.call(this);
}
newAudio.ended = function(){
this.isPlaying = false;
//println("ended");
//Audio.pause.call(this);
}
newAudio.src = src;
Sounds.snds[src].push(newAudio);
return newAudio;
}
//Creates a new audio object
SoundManager.prototype.play = function(src){
var audio = this.load(src);
audio.play();
//println(Sounds.snds[src].length);
return audio;
}
SoundManager.prototype.loop = function(src){
var audio = this.load(src);
//audio.loop = true;
audio.addEventListener('ended', function(){
//audio.currentTime = 0;
this.src = this.src;
this.play();
});
audio.play();
return audio;
}
SoundManager.prototype.toggleMuted = function(){
this.muted = !this.muted;
for(src in Sounds.snds){
//for(var i=0; i < Sounds.snds.length; i++){
Sounds.snds[src].foreach(toggleSounds,{});
}
}
function toggleSounds(sound, params){
sound.muted = Sounds.muted;
}
var Sounds = new SoundManager();
/**
* Creates a new instance of FontManager or returns the singleton instance.
*
* @class Singleton that manages font loading. By default there is a global reference called Fonts.
* @property {FontManager} instance The singlton instance.
* @property {Array<Div>} fonts Array of divs where the div's font is set to each loaded font indexed by font name.
*/
function FontManager(){
if(FontManager.prototype.instance){
return FontManager.prototype.instance;
}
FontManager.prototype.instance = this;
this.fonts = new Array();
}
FontManager.prototype.instance = null;
FontManager.prototype.fonts = new Array();
/**
* Makes sure the given font is loaded.
*
* @param {string} fontName The font to be loaded.
* @return {bool} True if the font is loaded.
*/
FontManager.prototype.load = function(fontName){
if(Fonts.fonts[fontName] == undefined){
Resources.addToLoad();
var fontDiv = document.createElement("p");
fontDiv.loaded = false;
fontDiv.font = fontName;
fontDiv.innerHTML = "AAAAAAAAAA";
fontDiv.style.position = "absolute";
fontDiv.style.visibility = "hidden";
fontDiv.style.top = 0;
fontDiv.style.display = "inline-block";
fontDiv.style.font = "20px "+fontName+",cursive";
fontDiv.checkIfLoaded = function(){
document.body.appendChild(this);
this.style.font = "20px Arial,cursive";
println(this.offsetWidth);
var preWidth = this.offsetWidth;
this.style.font = "20px "+this.font+",cursive";
println(this.offsetWidth);
if(this.offsetWidth != preWidth){
this.loaded = true;
Resources.leftToLoad--;
return true;
}
document.body.removeChild(this);
return false;
}
Fonts.fonts[fontName] = fontDiv;
}
//return Fonts.fonts[fontName].checkIfLoaded();
}
var Fonts = new FontManager();
/**
* Creates a new instance of FileManager or returns the singleton instance.
*
* @class Singleton that manages file loading. By default there is a global reference called Files.
* @property {FontManager} instance The singlton instance.
* @property {Array<Object{text,xml}>} files Array of objects. Each object has a plain text (.text) version of the file as well as an XML (.xml) version.
*/
function FileManager(){
if(FileManager.prototype.instance){
return FileManager.prototype.instance;
}
FileManager.prototype.instance = this;
this.files = new Array();
}
FileManager.prototype.instance = null;
FileManager.prototype.files = new Array();
/**
* Returns an object with the file accessible through the text and xml properties if the file is loaded. Otherwise starts loading the files and returns the files object.
*
* @param {Object} fileName
* @param {Object} onLoadFunc
*/
FileManager.prototype.load = function(fileName, onLoadFunc){
if(this.files[fileName] == undefined){
this.files[fileName] = new Object();
Resources.addToLoad();
var xml = xmlRequest();
xml.onreadystatechange = function(){
if(xml.readyState == 4){
Files.files[fileName].text = String(xml.responseText);
Files.files[fileName].xml = xml.responseXML;
//Files.files[fileName].onLoadComplete();
if(onLoadFunc != null){
onLoadFunc(Files.files[fileName]);
}
Resources.leftToLoad--;
}
}
try{
xml.open("GET",fileName,true);
xml.send(null);
}catch(e){
}
}
return this.files[fileName];
}
var Files = new FileManager();
//http://www.w3schools.com/ajax/ajax_browsers.asp
function xmlRequest(){
var xmlHttp;
try{
// Firefox, Opera 8.0+, Safari
xmlHttp=new XMLHttpRequest();
}
catch (e){
// Internet Explorer
try{
xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
}
catch (e){
try{
xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
}
catch (e){
alert("Your browser does not support AJAX!");
return false;
}
}
}
return xmlHttp;
}
//Based on the tutorials found here: http://learningwebgl.com/blog/?page_id=1217
//This has a lot of redundent code and needs to be cleaned up
//Global matrices
var mvMatrix = mat4.create();
var pMatrix = mat4.create();
//Default shader
var shaderProgram;
var vertShader;
var fragShader;
//Pointer to the current sprite shader, allows custome effects when drawing sprites (normal mapping)
var spriteShader;
//Sprite vertex buffers
var spriteVPB;
var spriteVTB;
var spriteVIB;
//Default draw buffers
var colorBuffer;
var stateBuffer;
//Holds a pool of screen buffers for use with screen shaders
var sBuffers = new Object();
//Define some global blending modes
BLEND_ALPHA = {a:"SRC_ALPHA", b:"ONE_MINUS_SRC_ALPHA"};
BLEND_ADD = {a:"SRC_ALPHA", b:"ONE"};
BLEND_MULTIPLY = {a:"DST_COLOR", b:"ZERO"};
//Initializes some WebGL stuff
function initGL(canvas){
try{
ctx.viewportWidth = canvas.width;
ctx.viewportHeight = canvas.height;
initBuffers(ctx);
//Initialize default shader
fragShader = compileShader(ctx, defaultFragSrc);
vertShader = compileShader(ctx, defaultVertSrc);
shaderProgram = createShaderProgram();
setupSpriteShader(shaderProgram);
spriteShader = shaderProgram;
colorBuffer = createRenderTarget(ctx, canvas.width, canvas.height);
stateBuffer = createRenderTarget(ctx, canvas.width, canvas.height);
ctx.clearColor(0.0, 0.0, 0.0, 1.0);
ctx.blendFunc(ctx.SRC_ALPHA, ctx.ONE_MINUS_SRC_ALPHA);
ctx.enable(ctx.BLEND);
}catch(e){
}
}
//Pushes the current matrices to the given vertex shader
function setMatrixUniforms(program){
ctx.uniformMatrix4fv(program.pMatrixUniform, false, pMatrix);
ctx.uniformMatrix4fv(program.mvMatrixUniform, false, mvMatrix);
}
//Pulls the shader source from the given embedded shader
function getShaderSrc(id){
if(!use2D){
var shaderScript = document.getElementById(id);
if(!shaderScript){
return null;
}
var code = "";
var k = shaderScript.firstChild;
while(k){
if(k.nodeType == 3){
code += k.textContent;
}
k = k.nextSibling;
}
var type;
if(shaderScript.type == "x-shader/x-fragment"){
type = "frag";
}else if(shaderScript.type == "x-shader/x-vertex"){
type = "vert";
}else{
return null;
}
return {code: code, type:type};
}
return null;
}
//Compiles a shader from the given source
function compileShader(gl, source){
if(!use2D){
if(!source){
println("no src");
return null;
}
var shader;
if(source.type == "frag"){
shader = gl.createShader(gl.FRAGMENT_SHADER);
}else if(source.type == "vert"){
shader = gl.createShader(gl.VERTEX_SHADER);
}else{
println("no type: "+source.type);