Function z

tests/lightgl.js:22–22

(a)

"uniform sampler2D texture;uniform float pointSize;uniform bool useTexture;varying vec4 color;varying vec4 coord;void main(){gl_FragColor=color;if(useTexture)gl_FragColor*=texture2D(texture,coord.xy);}");d.pointSize=function(a){u.uniforms({pointSize:a})};d.begin=function(a){if(y!=-1)throw"mismatched gl.begin() and gl.end() calls";y=a;l.colors=[];l.coords=[];l.vertices=[]};d.color=function(a,b,c,e){q=arguments.length==1?a.toArray().concat(1):
[a,b,c,e||1]};d.texCoord=function(a,b){p=arguments.length==1?a.toArray(2):[a,b]};d.vertex=function(a,b,c){l.colors.push(q);l.coords.push(p);l.vertices.push(arguments.length==1?a.toArray():[a,b,c])};d.end=function(){if(y==-1)throw"mismatched gl.begin() and gl.end() calls";l.compile();u.uniforms({useTexture:!!d.getParameter(d.TEXTURE_BINDING_2D)}).draw(l,y);y=-1};var r=function(){for(var a in x)if(B.call(x,a)&&x[a])return true;return false},s=function(a){var b={},c;for(c in a)b[c]=typeof a[c]=="function"?
function(b){return function(){b.apply(a,arguments)}}(a[c]):a[c];b.original=a;b.x=b.pageX;b.y=b.pageY;for(c=d.canvas;c;c=c.offsetParent){b.x=b.x-c.offsetLeft;b.y=b.y-c.offsetTop}if(D){b.deltaX=b.x-v;b.deltaY=b.y-w}else{b.deltaX=0;b.deltaY=0;D=true}v=b.x;w=b.y;b.dragging=r();b.preventDefault=function(){b.original.preventDefault()};b.stopPropagation=function(){b.original.stopPropagation()};return b},z=function(a){d=t;a=s(a);if(d.onmousemove)d.onmousemove(a);a.preventDefault()},A=function(a){d=t;x[a.which]=
false;if(!r()){document.removeEventListener("mousemove",z);document.removeEventListener("mouseup",A);d.canvas.addEventListener("mousemove",z);d.canvas.addEventListener("mouseup",A)}a=s(a);if(d.onmouseup)d.onmouseup(a);a.preventDefault()},b=function(){D=false},t=d,v=0,w=0,x={},D=!1,B=Object.prototype.hasOwnProperty;d.canvas.addEventListener("mousedown",function(a){d=t;if(!r()){document.addEventListener("mousemove",z);document.addEventListener("mouseup",A);d.canvas.removeEventListener("mousemove",z);
d.canvas.removeEventListener("mouseup",A)}x[a.which]=true;a=s(a);if(d.onmousedown)d.onmousedown(a);a.preventDefault()});d.canvas.addEventListener("mousemove",z);d.canvas.addEventListener("mouseup",A);d.canvas.addEventListener("mouseover",b);d.canvas.addEventListener("mouseout",b);document.addEventListener("contextmenu",function(){x={};D=false});var C=d;d.makeCurrent=function(){d=C};d.animate=function(){function a(){d=e;var f=(new Date).getTime();if(d.onupdate)d.onupdate((f-c)/1E3);if(d.ondraw)d.ondraw();
b(a);c=f}var b=window.requestAnimationFrame||window.mozRequestAnimationFrame||window.webkitRequestAnimationFrame||function(a){setTimeout(a,1E3/60)},c=(new Date).getTime(),e=d;a()};d.fullscreen=function(a){function b(){d.canvas.width=window.innerWidth-e-f;d.canvas.height=window.innerHeight-c-g;d.viewport(0,0,d.canvas.width,d.canvas.height);if(a.camera||!("camera"in a)){d.matrixMode(d.PROJECTION);d.loadIdentity();d.perspective(a.fov||45,d.canvas.width/d.canvas.height,a.near||0.1,a.far||1E3);d.matrixMode(d.MODELVIEW)}if(d.ondraw)d.ondraw()}