"use strict";const version=2,canvas=document.querySelector("#glcanvas");var gl,clipboard=null,wasm_memory,animation_frame_timeout,FS,GL,Module,wasm_exports,emscripten_shaders_hack,importObject,ctx,js_objects,unique_js_id,quad_socket,connected,received_buffer,uid,ongoing_requests,plugins=[],high_dpi=!1,blocking_event_loop=!1;function init_webgl(e){if(e==1){gl=canvas.getContext("webgl");function t(e){var t=e.getExtension("OES_vertex_array_object");t?(e.createVertexArray=function(){return t.createVertexArrayOES()},e.deleteVertexArray=function(e){t.deleteVertexArrayOES(e)},e.bindVertexArray=function(e){t.bindVertexArrayOES(e)},e.isVertexArray=function(e){return t.isVertexArrayOES(e)}):alert("Unable to get OES_vertex_array_object extension")}function n(e){var t=e.getExtension("ANGLE_instanced_arrays");t&&(e.vertexAttribDivisor=function(e,n){t.vertexAttribDivisorANGLE(e,n)},e.drawArraysInstanced=function(e,n,s,o){t.drawArraysInstancedANGLE(e,n,s,o)},e.drawElementsInstanced=function(e,n,s,o,i){t.drawElementsInstancedANGLE(e,n,s,o,i)})}function s(e){var t=e.getExtension("EXT_disjoint_timer_query");t&&(e.createQuery=function(){return t.createQueryEXT()},e.beginQuery=function(e,n){return t.beginQueryEXT(e,n)},e.endQuery=function(e){return t.endQueryEXT(e)},e.deleteQuery=function(e){t.deleteQueryEXT(e)},e.getQueryObject=function(e,n){return t.getQueryObjectEXT(e,n)})}function o(e){var t=e.getExtension("WEBGL_draw_buffers");t&&(e.drawBuffers=function(e){return t.drawBuffersWEBGL(e)})}try{gl.getExtension("EXT_shader_texture_lod"),gl.getExtension("OES_standard_derivatives")}catch(e){console.warn(e)}t(gl),n(gl),s(gl),o(gl),gl.getExtension("WEBGL_depth_texture")==null&&alert("Cant initialize WEBGL_depth_texture extension")}else gl=canvas.getContext("webgl2");gl===null&&alert("Unable to initialize WebGL. Your browser or machine may not support it.")}canvas.focus(),canvas.requestPointerLock=canvas.requestPointerLock||canvas.mozRequestPointerLock||function(){},document.exitPointerLock=document.exitPointerLock||document.mozExitPointerLock||function(){};function assert(e,t){e==!1&&alert(t)}function getArray(e,t,n){return new t(wasm_memory.buffer,e,n)}function UTF8ToString(e,t){let i=new Uint8Array(wasm_memory.buffer,e);for(var n,a,r,c,s=0,l=s+t,o="";!(s>=l);){if(n=i[s++],!n)return o;if(!(n&128)){o+=String.fromCharCode(n);continue}if(a=i[s++]&63,(n&224)==192){o+=String.fromCharCode((n&31)<<6|a);continue}r=i[s++]&63,(n&240)==224?n=(n&15)<<12|a<<6|r:((n&248)!=240&&console.warn("Invalid UTF-8 leading byte 0x"+n.toString(16)+" encountered when deserializing a UTF-8 string on the asm.js/wasm heap to a JS string!"),n=(n&7)<<18|a<<12|r<<6|i[s++]&63),n<65536?o+=String.fromCharCode(n):(c=n-65536,o+=String.fromCharCode(55296|c>>10,56320|c&1023))}return o}function stringToUTF8(e,t,n,s){for(var o,r,c=n,i=n+s,a=0;a<e.length;++a)if(o=e.charCodeAt(a),o>=55296&&o<=57343&&(r=e.charCodeAt(++a),o=65536+((o&1023)<<10)|r&1023),o<=127){if(n>=i)break;t[n++]=o}else if(o<=2047){if(n+1>=i)break;t[n++]=192|o>>6,t[n++]=128|o&63}else if(o<=65535){if(n+2>=i)break;t[n++]=224|o>>12,t[n++]=128|o>>6&63,t[n++]=128|o&63}else{if(n+3>=i)break;o>=2097152&&console.warn("Invalid Unicode code point 0x"+o.toString(16)+" encountered when serializing a JS string to an UTF-8 string on the asm.js/wasm heap! (Valid unicode code points should be in range 0-0x1FFFFF)."),t[n++]=240|o>>18,t[n++]=128|o>>12&63,t[n++]=128|o>>6&63,t[n++]=128|o&63}return n-c}FS={loaded_files:[],unique_id:0},GL={counter:1,buffers:[],mappedBuffers:{},programs:[],framebuffers:[],renderbuffers:[],textures:[],uniforms:[],shaders:[],vaos:[],timerQueries:[],contexts:{},programInfos:{},getNewId:function(e){for(var n=GL.counter++,t=e.length;t<n;t++)e[t]=null;return n},validateGLObjectID:function(e,t,n,s){t!=0&&(e[t]===null?console.error(n+" called with an already deleted "+s+" ID "+t+"!"):e[t]||console.error(n+" called with an invalid "+s+" ID "+t+"!"))},getSource:function(e,t,n,s){for(var a,i="",o=0;o<t;++o)a=s==0?void 0:getArray(s+o*4,Uint32Array,1)[0],i+=UTF8ToString(getArray(n+o*4,Uint32Array,1)[0],a);return i},populateUniformTable:function(e){GL.validateGLObjectID(GL.programs,e,"populateUniformTable","program");for(var t,n,s,i,a,l,o=GL.programs[e],r=GL.programInfos[e]={uniforms:{},maxUniformLength:0,maxAttributeLength:-1,maxUniformBlockNameLength:-1},d=r.uniforms,u=gl.getProgramParameter(o,35718),c=0;c<u;++c)if(i=gl.getActiveUniform(o,c),t=i.name,r.maxUniformLength=Math.max(r.maxUniformLength,t.length+1),t.slice(-1)=="]"&&(t=t.slice(0,t.lastIndexOf("["))),n=gl.getUniformLocation(o,t),n){s=GL.getNewId(GL.uniforms),d[t]=[i.size,s],GL.uniforms[s]=n;for(a=1;a<i.size;++a)l=t+"["+a+"]",n=gl.getUniformLocation(o,l),s=GL.getNewId(GL.uniforms),GL.uniforms[s]=n}}};function _glGenObject(e,t,n,s,o){for(var i,a,r=0;r<e;r++)i=gl[n](),a=i&&GL.getNewId(s),i?(i.name=a,s[a]=i):(console.error("GL_INVALID_OPERATION"),GL.recordError(1282),alert("GL_INVALID_OPERATION in "+o+": GLctx."+n+" returned null - most likely GL context is lost!")),getArray(t+r*4,Int32Array,1)[0]=a}function _webglGet(e,t,n){if(!t){console.error("GL_INVALID_VALUE in glGet"+n+"v(name="+e+": Function called with null out pointer!"),GL.recordError(1281);return}var s,i,a,o=void 0;switch(e){case 36346:o=1;break;case 36344:n!="EM_FUNC_SIG_PARAM_I"&&n!="EM_FUNC_SIG_PARAM_I64"&&(GL.recordError(1280),err("GL_INVALID_ENUM in glGet"+n+"v(GL_SHADER_BINARY_FORMATS): Invalid parameter type!"));return;case 34814:case 36345:o=0;break;case 34466:i=gl.getParameter(34467),o=i?i.length:0;break;case 33309:assert(!1,"unimplemented");break;case 33307:case 33308:assert(!1,"unimplemented");break}if(o===void 0)switch(s=gl.getParameter(e),typeof s){case"number":o=s;break;case"boolean":o=s?1:0;break;case"string":GL.recordError(1280),console.error("GL_INVALID_ENUM in glGet"+n+"v("+e+") on a name which returns a string!");return;case"object":if(s===null)switch(e){case 34964:case 35725:case 34965:case 36006:case 36007:case 32873:case 34229:case 35097:case 36389:case 34068:{o=0;break}default:{GL.recordError(1280),console.error("GL_INVALID_ENUM in glGet"+n+"v("+e+") and it returns null!");return}}else if(s instanceof Float32Array||s instanceof Uint32Array||s instanceof Int32Array||s instanceof Array){for(a=0;a<s.length;++a)assert(!1,"unimplemented");return}else try{o=s.name|0}catch(t){GL.recordError(1280),console.error("GL_INVALID_ENUM in glGet"+n+"v: Unknown object returned from WebGL getParameter("+e+")! (error: "+t+")");return}break;default:GL.recordError(1280),console.error("GL_INVALID_ENUM in glGet"+n+"v: Native code calling glGet"+n+"v("+e+") and it returns "+s+" of type "+typeof s+"!");return}switch(n){case"EM_FUNC_SIG_PARAM_I64":getArray(t,Int32Array,1)[0]=o;case"EM_FUNC_SIG_PARAM_I":getArray(t,Int32Array,1)[0]=o;break;case"EM_FUNC_SIG_PARAM_F":getArray(t,Float32Array,1)[0]=o;break;case"EM_FUNC_SIG_PARAM_B":getArray(t,Int8Array,1)[0]=o?1:0;break;default:throw"internal glGet error, bad type: "+n}}function resize(e,t){var o=dpi_scale(),n=e.clientWidth*o,s=e.clientHeight*o;(e.width!=n||e.height!=s)&&(e.width=n,e.height=s,t!=null&&t(Math.floor(n),Math.floor(s)))}function animation(){wasm_exports.frame(),window.blocking_event_loop||(animation_frame_timeout&&window.cancelAnimationFrame(animation_frame_timeout),animation_frame_timeout=window.requestAnimationFrame(animation))}const SAPP_EVENTTYPE_TOUCHES_BEGAN=10,SAPP_EVENTTYPE_TOUCHES_MOVED=11,SAPP_EVENTTYPE_TOUCHES_ENDED=12,SAPP_EVENTTYPE_TOUCHES_CANCELED=13,SAPP_MODIFIER_SHIFT=1,SAPP_MODIFIER_CTRL=2,SAPP_MODIFIER_ALT=4,SAPP_MODIFIER_SUPER=8;function into_sapp_mousebutton(e){switch(e){case 0:return 0;case 1:return 2;case 2:return 1;default:return e}}function into_sapp_keycode(e){switch(e){case"Space":return 32;case"Quote":return 222;case"Comma":return 44;case"Minus":return 45;case"Period":return 46;case"Slash":return 189;case"Digit0":return 48;case"Digit1":return 49;case"Digit2":return 50;case"Digit3":return 51;case"Digit4":return 52;case"Digit5":return 53;case"Digit6":return 54;case"Digit7":return 55;case"Digit8":return 56;case"Digit9":return 57;case"Semicolon":return 59;case"Equal":return 61;case"KeyA":return 65;case"KeyB":return 66;case"KeyC":return 67;case"KeyD":return 68;case"KeyE":return 69;case"KeyF":return 70;case"KeyG":return 71;case"KeyH":return 72;case"KeyI":return 73;case"KeyJ":return 74;case"KeyK":return 75;case"KeyL":return 76;case"KeyM":return 77;case"KeyN":return 78;case"KeyO":return 79;case"KeyP":return 80;case"KeyQ":return 81;case"KeyR":return 82;case"KeyS":return 83;case"KeyT":return 84;case"KeyU":return 85;case"KeyV":return 86;case"KeyW":return 87;case"KeyX":return 88;case"KeyY":return 89;case"KeyZ":return 90;case"BracketLeft":return 91;case"Backslash":return 92;case"BracketRight":return 93;case"Backquote":return 96;case"Escape":return 256;case"Enter":return 257;case"Tab":return 258;case"Backspace":return 259;case"Insert":return 260;case"Delete":return 261;case"ArrowRight":return 262;case"ArrowLeft":return 263;case"ArrowDown":return 264;case"ArrowUp":return 265;case"PageUp":return 266;case"PageDown":return 267;case"Home":return 268;case"End":return 269;case"CapsLock":return 280;case"ScrollLock":return 281;case"NumLock":return 282;case"PrintScreen":return 283;case"Pause":return 284;case"F1":return 290;case"F2":return 291;case"F3":return 292;case"F4":return 293;case"F5":return 294;case"F6":return 295;case"F7":return 296;case"F8":return 297;case"F9":return 298;case"F10":return 299;case"F11":return 300;case"F12":return 301;case"F13":return 302;case"F14":return 303;case"F15":return 304;case"F16":return 305;case"F17":return 306;case"F18":return 307;case"F19":return 308;case"F20":return 309;case"F21":return 310;case"F22":return 311;case"F23":return 312;case"F24":return 313;case"Numpad0":return 320;case"Numpad1":return 321;case"Numpad2":return 322;case"Numpad3":return 323;case"Numpad4":return 324;case"Numpad5":return 325;case"Numpad6":return 326;case"Numpad7":return 327;case"Numpad8":return 328;case"Numpad9":return 329;case"NumpadDecimal":return 330;case"NumpadDivide":return 331;case"NumpadMultiply":return 332;case"NumpadSubtract":return 333;case"NumpadAdd":return 334;case"NumpadEnter":return 335;case"NumpadEqual":return 336;case"ShiftLeft":return 340;case"ControlLeft":return 341;case"AltLeft":return 342;case"OSLeft":return 343;case"ShiftRight":return 344;case"ControlRight":return 345;case"AltRight":return 346;case"OSRight":return 347;case"ContextMenu":return 348}console.log("Unsupported keyboard key: ",e)}function dpi_scale(){return high_dpi?window.devicePixelRatio||1:1}function texture_size(e,t,n){return e==gl.ALPHA?t*n:e==gl.RGB?t*n*3:e==gl.RGBA?t*n*4:t*n*3}function mouse_relative_position(e,t){var n=canvas.getBoundingClientRect(),s=(e-n.left)*dpi_scale(),o=(t-n.top)*dpi_scale();return{x:s,y:o}}emscripten_shaders_hack=!1,importObject={env:{console_debug:function(e){console.debug(UTF8ToString(e))},console_log:function(e){console.log(UTF8ToString(e))},console_info:function(e){console.info(UTF8ToString(e))},console_warn:function(e){console.warn(UTF8ToString(e))},console_error:function(e){console.error(UTF8ToString(e))},set_emscripten_shader_hack:function(e){emscripten_shaders_hack=e},sapp_set_clipboard:function(e,t){clipboard=UTF8ToString(e,t)},dpi_scale,rand:function(){return Math.floor(Math.random()*2147483647)},now:function(){return Date.now()/1e3},canvas_width:function(){return Math.floor(canvas.width)},canvas_height:function(){return Math.floor(canvas.height)},glClearDepthf:function(e){gl.clearDepth(e)},glClearColor:function(e,t,n,s){gl.clearColor(e,t,n,s)},glClearStencil:function(e){gl.clearStencil(e)},glColorMask:function(e,t,n,s){gl.colorMask(e,t,n,s)},glScissor:function(e,t,n,s){gl.scissor(e,t,n,s)},glClear:function(e){gl.clear(e)},glGenTextures:function(e,t){_glGenObject(e,t,"createTexture",GL.textures,"glGenTextures")},glActiveTexture:function(e){gl.activeTexture(e)},glBindTexture:function(e,t){GL.validateGLObjectID(GL.textures,t,"glBindTexture","texture"),gl.bindTexture(e,GL.textures[t])},glTexImage2D:function(e,t,n,s,o,i,a,r,c){gl.texImage2D(e,t,n,s,o,i,a,r,c?getArray(c,Uint8Array,texture_size(n,s,o)):null)},glTexSubImage2D:function(e,t,n,s,o,i,a,r,c){gl.texSubImage2D(e,t,n,s,o,i,a,r,c?getArray(c,Uint8Array,texture_size(a,o,i)):null)},glReadPixels:function(e,t,n,s,o,i,a){var r=getArray(a,Uint8Array,texture_size(o,n,s));gl.readPixels(e,t,n,s,o,i,r)},glTexParameteri:function(e,t,n){gl.texParameteri(e,t,n)},glUniform1fv:function(e,t,n){GL.validateGLObjectID(GL.uniforms,e,"glUniform1fv","location"),assert((n&3)==0,"Pointer to float data passed to glUniform1fv must be aligned to four bytes!");var s=getArray(n,Float32Array,1*t);gl.uniform1fv(GL.uniforms[e],s)},glUniform2fv:function(e,t,n){GL.validateGLObjectID(GL.uniforms,e,"glUniform2fv","location"),assert((n&3)==0,"Pointer to float data passed to glUniform2fv must be aligned to four bytes!");var s=getArray(n,Float32Array,2*t);gl.uniform2fv(GL.uniforms[e],s)},glUniform3fv:function(e,t,n){GL.validateGLObjectID(GL.uniforms,e,"glUniform3fv","location"),assert((n&3)==0,"Pointer to float data passed to glUniform3fv must be aligned to four bytes!");var s=getArray(n,Float32Array,3*t);gl.uniform3fv(GL.uniforms[e],s)},glUniform4fv:function(e,t,n){GL.validateGLObjectID(GL.uniforms,e,"glUniform4fv","location"),assert((n&3)==0,"Pointer to float data passed to glUniform4fv must be aligned to four bytes!");var s=getArray(n,Float32Array,4*t);gl.uniform4fv(GL.uniforms[e],s)},glUniform1iv:function(e,t,n){GL.validateGLObjectID(GL.uniforms,e,"glUniform1fv","location"),assert((n&3)==0,"Pointer to i32 data passed to glUniform1iv must be aligned to four bytes!");var s=getArray(n,Int32Array,1*t);gl.uniform1iv(GL.uniforms[e],s)},glUniform2iv:function(e,t,n){GL.validateGLObjectID(GL.uniforms,e,"glUniform2fv","location"),assert((n&3)==0,"Pointer to i32 data passed to glUniform2iv must be aligned to four bytes!");var s=getArray(n,Int32Array,2*t);gl.uniform2iv(GL.uniforms[e],s)},glUniform3iv:function(e,t,n){GL.validateGLObjectID(GL.uniforms,e,"glUniform3fv","location"),assert((n&3)==0,"Pointer to i32 data passed to glUniform3iv must be aligned to four 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gl.getAttribLocation(GL.programs[e],UTF8ToString(t))},glEnableVertexAttribArray:function(e){gl.enableVertexAttribArray(e)},glDisableVertexAttribArray:function(e){gl.disableVertexAttribArray(e)},glVertexAttribPointer:function(e,t,n,s,o,i){gl.vertexAttribPointer(e,t,n,!!s,o,i)},glVertexAttribIPointer:function(e,t,n,s,o){gl.vertexAttribIPointer(e,t,n,s,o)},glGetUniformLocation:function(e,t){GL.validateGLObjectID(GL.programs,e,"glGetUniformLocation","program"),t=UTF8ToString(t);var s,o,n=0;return t[t.length-1]=="]"&&(s=t.lastIndexOf("["),n=t[s+1]!="]"?parseInt(t.slice(s+1)):0,t=t.slice(0,s)),o=GL.programInfos[e]&&GL.programInfos[e].uniforms[t],o&&n>=0&&n<o[0]?o[1]+n:-1},glUniformMatrix4fv:function(e,t,n,s){GL.validateGLObjectID(GL.uniforms,e,"glUniformMatrix4fv","location"),assert((s&3)==0,"Pointer to float data passed to glUniformMatrix4fv must be aligned to four bytes!");var o=getArray(s,Float32Array,16);gl.uniformMatrix4fv(GL.uniforms[e],!!n,o)},glUseProgram:function(e){GL.validateGLObjectID(GL.programs,e,"glUseProgram","program"),gl.useProgram(GL.programs[e])},glGenVertexArrays:function(e,t){_glGenObject(e,t,"createVertexArray",GL.vaos,"glGenVertexArrays")},glGenFramebuffers:function(e,t){_glGenObject(e,t,"createFramebuffer",GL.framebuffers,"glGenFramebuffers")},glBindVertexArray:function(e){gl.bindVertexArray(GL.vaos[e])},glBindFramebuffer:function(e,t){GL.validateGLObjectID(GL.framebuffers,t,"glBindFramebuffer","framebuffer"),gl.bindFramebuffer(e,GL.framebuffers[t])},glGenBuffers:function(e,t){_glGenObject(e,t,"createBuffer",GL.buffers,"glGenBuffers")},glBindBuffer:function(e,t){GL.validateGLObjectID(GL.buffers,t,"glBindBuffer","buffer"),gl.bindBuffer(e,GL.buffers[t])},glBufferData:function(e,t,n,s){gl.bufferData(e,n?getArray(n,Uint8Array,t):t,s)},glBufferSubData:function(e,t,n,s){gl.bufferSubData(e,t,s?getArray(s,Uint8Array,n):n)},glEnable:function(e){gl.enable(e)},glFlush:function(){gl.flush()},glFinish:function(){gl.finish()},glDepthFunc:function(e){gl.depthFunc(e)},glBlendFuncSeparate:function(e,t,n,s){gl.blendFuncSeparate(e,t,n,s)},glViewport:function(e,t,n,s){gl.viewport(e,t,n,s)},glDrawArrays:function(e,t,n){gl.drawArrays(e,t,n)},glDrawBuffers:function(e,t){gl.drawBuffers(getArray(t,Int32Array,e))},glCreateProgram:function(){var e=GL.getNewId(GL.programs),t=gl.createProgram();return t.name=e,GL.programs[e]=t,e},glAttachShader:function(e,t){GL.validateGLObjectID(GL.programs,e,"glAttachShader","program"),GL.validateGLObjectID(GL.shaders,t,"glAttachShader","shader"),gl.attachShader(GL.programs[e],GL.shaders[t])},glDetachShader:function(e,t){GL.validateGLObjectID(GL.programs,e,"glDetachShader","program"),GL.validateGLObjectID(GL.shaders,t,"glDetachShader","shader"),gl.detachShader(GL.programs[e],GL.shaders[t])},glLinkProgram:function(e){GL.validateGLObjectID(GL.programs,e,"glLinkProgram","program"),gl.linkProgram(GL.programs[e]),GL.populateUniformTable(e)},glPixelStorei:function(e,t){gl.pixelStorei(e,t)},glFramebufferTexture2D:function(e,t,n,s,o){GL.validateGLObjectID(GL.textures,s,"glFramebufferTexture2D","texture"),gl.framebufferTexture2D(e,t,n,GL.textures[s],o)},glGetProgramiv:function(e,t,n){if(assert(n),GL.validateGLObjectID(GL.programs,e,"glGetProgramiv","program"),e>=GL.counter){console.error("GL_INVALID_VALUE in glGetProgramiv");return}var s,o=GL.programInfos[e];if(!o){console.error("GL_INVALID_OPERATION in glGetProgramiv(program="+e+", pname="+t+", p=0x"+n.toString(16)+"): The specified GL object name does not refer to a program object!");return}if(t==35716)s=gl.getProgramInfoLog(GL.programs[e]),assert(s!==null),getArray(n,Int32Array,1)[0]=s.length+1;else if(t==35719){console.error("unsupported operation");return}else if(t==35722){console.error("unsupported operation");return}else if(t==35381){console.error("unsupported operation");return}else getArray(n,Int32Array,1)[0]=gl.getProgramParameter(GL.programs[e],t)},glCreateShader:function(e){var t=GL.getNewId(GL.shaders);return 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