diff --git a/lwjgl-util.js b/lwjgl-util.js
new file mode 100644
index 0000000..4d21192
--- /dev/null
+++ b/lwjgl-util.js
@@ -0,0 +1,161 @@
+"use strict";
+(function(){
+var $rt_seed=2463534242;function $rt_nextId(){var x=$rt_seed;x^=x<<13;x^=x>>17;x^=x<<5;$rt_seed=x;return x;}function $rt_compare(a,b){return a>b?1:a<b? -1:a===b?0:1;}function $rt_isInstance(obj,cls){return obj!==null&&!!obj.constructor.$meta&&$rt_isAssignable(obj.constructor,cls);}function $rt_isAssignable(from,to){if(from===to){return true;}if(to.$meta.item!==null){return from.$meta.item!==null&&$rt_isAssignable(from.$meta.item,to.$meta.item);}var supertypes=from.$meta.supertypes;for(var i=0;i<supertypes.length;i
+=i+1|0){if($rt_isAssignable(supertypes[i],to)){return true;}}return false;}function $rt_createArray(cls,sz){var data=new Array(sz);var arr=new $rt_array(cls,data);if(sz>0){var i=0;do {data[i]=null;i=i+1|0;}while(i<sz);}return arr;}function $rt_wrapArray(cls,data){return new $rt_array(cls,data);}function $rt_createUnfilledArray(cls,sz){return new $rt_array(cls,new Array(sz));}function $rt_createLongArray(sz){var data=new Array(sz);var arr=new $rt_array($rt_longcls(),data);for(var i=0;i<sz;i=i+1|0){data[i]=Long_ZERO;}return arr;}function $rt_createNumericArray(cls,
+nativeArray){return new $rt_array(cls,nativeArray);}function $rt_createCharArray(sz){return $rt_createNumericArray($rt_charcls(),new Uint16Array(sz));}function $rt_createByteArray(sz){return $rt_createNumericArray($rt_bytecls(),new Int8Array(sz));}function $rt_createShortArray(sz){return $rt_createNumericArray($rt_shortcls(),new Int16Array(sz));}function $rt_createIntArray(sz){return $rt_createNumericArray($rt_intcls(),new Int32Array(sz));}function $rt_createBooleanArray(sz){return $rt_createNumericArray($rt_booleancls(),
+new Int8Array(sz));}function $rt_createFloatArray(sz){return $rt_createNumericArray($rt_floatcls(),new Float32Array(sz));}function $rt_createDoubleArray(sz){return $rt_createNumericArray($rt_doublecls(),new Float64Array(sz));}function $rt_arraycls(cls){var result=cls.$array;if(result===null){var arraycls={};var name="["+cls.$meta.binaryName;arraycls.$meta={item:cls,supertypes:[$rt_objcls()],primitive:false,superclass:$rt_objcls(),name:name,binaryName:name,enum:false};arraycls.classObject=null;arraycls.$array
+=null;result=arraycls;cls.$array=arraycls;}return result;}function $rt_createcls(){return {$array:null,classObject:null,$meta:{supertypes:[],superclass:null}};}function $rt_createPrimitiveCls(name,binaryName){var cls=$rt_createcls();cls.$meta.primitive=true;cls.$meta.name=name;cls.$meta.binaryName=binaryName;cls.$meta.enum=false;cls.$meta.item=null;return cls;}var $rt_booleanclsCache=null;function $rt_booleancls(){if($rt_booleanclsCache===null){$rt_booleanclsCache=$rt_createPrimitiveCls("boolean","Z");}return $rt_booleanclsCache;}var $rt_charclsCache
+=null;function $rt_charcls(){if($rt_charclsCache===null){$rt_charclsCache=$rt_createPrimitiveCls("char","C");}return $rt_charclsCache;}var $rt_byteclsCache=null;function $rt_bytecls(){if($rt_byteclsCache===null){$rt_byteclsCache=$rt_createPrimitiveCls("byte","B");}return $rt_byteclsCache;}var $rt_shortclsCache=null;function $rt_shortcls(){if($rt_shortclsCache===null){$rt_shortclsCache=$rt_createPrimitiveCls("short","S");}return $rt_shortclsCache;}var $rt_intclsCache=null;function $rt_intcls(){if($rt_intclsCache
+===null){$rt_intclsCache=$rt_createPrimitiveCls("int","I");}return $rt_intclsCache;}var $rt_longclsCache=null;function $rt_longcls(){if($rt_longclsCache===null){$rt_longclsCache=$rt_createPrimitiveCls("long","J");}return $rt_longclsCache;}var $rt_floatclsCache=null;function $rt_floatcls(){if($rt_floatclsCache===null){$rt_floatclsCache=$rt_createPrimitiveCls("float","F");}return $rt_floatclsCache;}var $rt_doubleclsCache=null;function $rt_doublecls(){if($rt_doubleclsCache===null){$rt_doubleclsCache=$rt_createPrimitiveCls("double",
+"D");}return $rt_doubleclsCache;}var $rt_voidclsCache=null;function $rt_voidcls(){if($rt_voidclsCache===null){$rt_voidclsCache=$rt_createPrimitiveCls("void","V");}return $rt_voidclsCache;}function $rt_throw(ex){throw $rt_exception(ex);}function $rt_exception(ex){var err=ex.$jsException;if(!err){err=new Error("Java exception thrown");if(typeof Error.captureStackTrace==="function"){Error.captureStackTrace(err);}err.$javaException=ex;ex.$jsException=err;$rt_fillStack(err,ex);}return err;}function $rt_fillStack(err,
+ex){if(typeof $rt_decodeStack==="function"&&err.stack){var stack=$rt_decodeStack(err.stack);var javaStack=$rt_createArray($rt_objcls(),stack.length);var elem;var noStack=false;for(var i=0;i<stack.length;++i){var element=stack[i];elem=$rt_createStackElement($rt_str(element.className),$rt_str(element.methodName),$rt_str(element.fileName),element.lineNumber);if(elem==null){noStack=true;break;}javaStack.data[i]=elem;}if(!noStack){$rt_setStack(ex,javaStack);}}}function $rt_createMultiArray(cls,dimensions){var first
+=0;for(var i=dimensions.length -1;i>=0;i=i -1|0){if(dimensions[i]===0){first=i;break;}}if(first>0){for(i=0;i<first;i=i+1|0){cls=$rt_arraycls(cls);}if(first===dimensions.length -1){return $rt_createArray(cls,dimensions[first]);}}var arrays=new Array($rt_primitiveArrayCount(dimensions,first));var firstDim=dimensions[first]|0;for(i=0;i<arrays.length;i=i+1|0){arrays[i]=$rt_createArray(cls,firstDim);}return $rt_createMultiArrayImpl(cls,arrays,dimensions,first);}function $rt_createByteMultiArray(dimensions){var arrays
+=new Array($rt_primitiveArrayCount(dimensions,0));if(arrays.length===0){return $rt_createMultiArray($rt_bytecls(),dimensions);}var firstDim=dimensions[0]|0;for(var i=0;i<arrays.length;i=i+1|0){arrays[i]=$rt_createByteArray(firstDim);}return $rt_createMultiArrayImpl($rt_bytecls(),arrays,dimensions);}function $rt_createCharMultiArray(dimensions){var arrays=new Array($rt_primitiveArrayCount(dimensions,0));if(arrays.length===0){return $rt_createMultiArray($rt_charcls(),dimensions);}var firstDim=dimensions[0]|0;for
+(var i=0;i<arrays.length;i=i+1|0){arrays[i]=$rt_createCharArray(firstDim);}return $rt_createMultiArrayImpl($rt_charcls(),arrays,dimensions,0);}function $rt_createBooleanMultiArray(dimensions){var arrays=new Array($rt_primitiveArrayCount(dimensions,0));if(arrays.length===0){return $rt_createMultiArray($rt_booleancls(),dimensions);}var firstDim=dimensions[0]|0;for(var i=0;i<arrays.length;i=i+1|0){arrays[i]=$rt_createBooleanArray(firstDim);}return $rt_createMultiArrayImpl($rt_booleancls(),arrays,dimensions,0);}function $rt_createShortMultiArray(dimensions)
+{var arrays=new Array($rt_primitiveArrayCount(dimensions,0));if(arrays.length===0){return $rt_createMultiArray($rt_shortcls(),dimensions);}var firstDim=dimensions[0]|0;for(var i=0;i<arrays.length;i=i+1|0){arrays[i]=$rt_createShortArray(firstDim);}return $rt_createMultiArrayImpl($rt_shortcls(),arrays,dimensions,0);}function $rt_createIntMultiArray(dimensions){var arrays=new Array($rt_primitiveArrayCount(dimensions,0));if(arrays.length===0){return $rt_createMultiArray($rt_intcls(),dimensions);}var firstDim=dimensions[0]
+|0;for(var i=0;i<arrays.length;i=i+1|0){arrays[i]=$rt_createIntArray(firstDim);}return $rt_createMultiArrayImpl($rt_intcls(),arrays,dimensions,0);}function $rt_createLongMultiArray(dimensions){var arrays=new Array($rt_primitiveArrayCount(dimensions,0));if(arrays.length===0){return $rt_createMultiArray($rt_longcls(),dimensions);}var firstDim=dimensions[0]|0;for(var i=0;i<arrays.length;i=i+1|0){arrays[i]=$rt_createLongArray(firstDim);}return $rt_createMultiArrayImpl($rt_longcls(),arrays,dimensions,0);}function $rt_createFloatMultiArray(dimensions)
+{var arrays=new Array($rt_primitiveArrayCount(dimensions,0));if(arrays.length===0){return $rt_createMultiArray($rt_floatcls(),dimensions);}var firstDim=dimensions[0]|0;for(var i=0;i<arrays.length;i=i+1|0){arrays[i]=$rt_createFloatArray(firstDim);}return $rt_createMultiArrayImpl($rt_floatcls(),arrays,dimensions,0);}function $rt_createDoubleMultiArray(dimensions){var arrays=new Array($rt_primitiveArrayCount(dimensions,0));if(arrays.length===0){return $rt_createMultiArray($rt_doublecls(),dimensions);}var firstDim
+=dimensions[0]|0;for(var i=0;i<arrays.length;i=i+1|0){arrays[i]=$rt_createDoubleArray(firstDim);}return $rt_createMultiArrayImpl($rt_doublecls(),arrays,dimensions,0);}function $rt_primitiveArrayCount(dimensions,start){var val=dimensions[start+1]|0;for(var i=start+2;i<dimensions.length;i=i+1|0){val=val*(dimensions[i]|0)|0;if(val===0){break;}}return val;}function $rt_createMultiArrayImpl(cls,arrays,dimensions,start){var limit=arrays.length;for(var i=start+1|0;i<dimensions.length;i=i+1|0){cls=$rt_arraycls(cls);var dim
+=dimensions[i];var index=0;var packedIndex=0;while(index<limit){var arr=$rt_createUnfilledArray(cls,dim);for(var j=0;j<dim;j=j+1|0){arr.data[j]=arrays[index];index=index+1|0;}arrays[packedIndex]=arr;packedIndex=packedIndex+1|0;}limit=packedIndex;}return arrays[0];}function $rt_assertNotNaN(value){if(typeof value==='number'&&isNaN(value)){throw "NaN";}return value;}var $rt_stdoutBuffer="";var $rt_putStdout=typeof $rt_putStdoutCustom==="function"?$rt_putStdoutCustom:function(ch){if(ch===0xA){if(console){console.info($rt_stdoutBuffer);}$rt_stdoutBuffer
+="";}else {$rt_stdoutBuffer+=String.fromCharCode(ch);}};var $rt_stderrBuffer="";var $rt_putStderr=typeof $rt_putStderrCustom==="function"?$rt_putStderrCustom:function(ch){if(ch===0xA){if(console){console.error($rt_stderrBuffer);}$rt_stderrBuffer="";}else {$rt_stderrBuffer+=String.fromCharCode(ch);}};var $rt_packageData=null;function $rt_packages(data){var i=0;var packages=new Array(data.length);for(var j=0;j<data.length;++j){var prefixIndex=data[i++];var prefix=prefixIndex>=0?packages[prefixIndex]:"";packages[j]
+=prefix+data[i++]+".";}$rt_packageData=packages;}function $rt_metadata(data){var packages=$rt_packageData;var i=0;while(i<data.length){var cls=data[i++];cls.$meta={};var m=cls.$meta;var className=data[i++];m.name=className!==0?className:null;if(m.name!==null){var packageIndex=data[i++];if(packageIndex>=0){m.name=packages[packageIndex]+m.name;}}m.binaryName="L"+m.name+";";var superclass=data[i++];m.superclass=superclass!==0?superclass:null;m.supertypes=data[i++];if(m.superclass){m.supertypes.push(m.superclass);cls.prototype
+=Object.create(m.superclass.prototype);}else {cls.prototype={};}var flags=data[i++];m.enum=(flags&8)!==0;m.flags=flags;m.primitive=false;m.item=null;cls.prototype.constructor=cls;cls.classObject=null;m.accessLevel=data[i++];var clinit=data[i++];cls.$clinit=clinit!==0?clinit:function(){};var virtualMethods=data[i++];if(virtualMethods!==0){for(var j=0;j<virtualMethods.length;j+=2){var name=virtualMethods[j];var func=virtualMethods[j+1];if(typeof name==='string'){name=[name];}for(var k=0;k<name.length;++k){cls.prototype[name[k]]
+=func;}}}cls.$array=null;}}function $rt_threadStarter(f){return function(){var args=Array.prototype.slice.apply(arguments);$rt_startThread(function(){f.apply(this,args);});};}function $rt_mainStarter(f){return function(args,callback){if(!args){args=[];}var javaArgs=$rt_createArray($rt_objcls(),args.length);for(var i=0;i<args.length;++i){javaArgs.data[i]=$rt_str(args[i]);}$rt_startThread(function(){f.call(null,javaArgs);},callback);};}var $rt_stringPool_instance;function $rt_stringPool(strings){$rt_stringPool_instance
+=new Array(strings.length);for(var i=0;i<strings.length;++i){$rt_stringPool_instance[i]=$rt_intern($rt_str(strings[i]));}}function $rt_s(index){return $rt_stringPool_instance[index];}function $rt_eraseClinit(target){return target.$clinit=function(){};}var $rt_numberConversionView=new DataView(new ArrayBuffer(8));function $rt_doubleToLongBits(n){$rt_numberConversionView.setFloat64(0,n,true);return new Long($rt_numberConversionView.getInt32(0,true),$rt_numberConversionView.getInt32(4,true));}function $rt_longBitsToDouble(n)
+{$rt_numberConversionView.setInt32(0,n.lo,true);$rt_numberConversionView.setInt32(4,n.hi,true);return $rt_numberConversionView.getFloat64(0,true);}function $rt_floatToIntBits(n){$rt_numberConversionView.setFloat32(0,n);return $rt_numberConversionView.getInt32(0);}function $rt_intBitsToFloat(n){$rt_numberConversionView.setInt32(0,n);return $rt_numberConversionView.getFloat32(0);}function $rt_javaException(e){return e instanceof Error&&typeof e.$javaException==='object'?e.$javaException:null;}function $rt_jsException(e)
+{return typeof e.$jsException==='object'?e.$jsException:null;}function $rt_wrapException(err){var ex=err.$javaException;if(!ex){ex=$rt_createException($rt_str("(JavaScript) "+err.toString()));err.$javaException=ex;ex.$jsException=err;$rt_fillStack(err,ex);}return ex;}function $dbg_class(obj){var cls=obj.constructor;var arrayDegree=0;while(cls.$meta&&cls.$meta.item){++arrayDegree;cls=cls.$meta.item;}var clsName="";if(cls===$rt_booleancls()){clsName="boolean";}else if(cls===$rt_bytecls()){clsName="byte";}else if
+(cls===$rt_shortcls()){clsName="short";}else if(cls===$rt_charcls()){clsName="char";}else if(cls===$rt_intcls()){clsName="int";}else if(cls===$rt_longcls()){clsName="long";}else if(cls===$rt_floatcls()){clsName="float";}else if(cls===$rt_doublecls()){clsName="double";}else {clsName=cls.$meta?cls.$meta.name||"a/"+cls.name:"@"+cls.name;}while(arrayDegree-->0){clsName+="[]";}return clsName;}function Long(lo,hi){this.lo=lo|0;this.hi=hi|0;}Long.prototype.__teavm_class__=function(){return "long";};Long.prototype.toString
+=function(){var result=[];var n=this;var positive=Long_isPositive(n);if(!positive){n=Long_neg(n);}var radix=new Long(10,0);do {var divRem=Long_divRem(n,radix);result.push(String.fromCharCode(48+divRem[1].lo));n=divRem[0];}while(n.lo!==0||n.hi!==0);result=(result.reverse()).join('');return positive?result:"-"+result;};Long.prototype.valueOf=function(){return Long_toNumber(this);};var Long_ZERO=new Long(0,0);var Long_MAX_NORMAL=1<<18;function Long_fromInt(val){return val>=0?new Long(val,0):new Long(val, -1);}function Long_fromNumber(val)
+{if(val>=0){return new Long(val|0,val/0x100000000|0);}else {return Long_neg(new Long( -val|0, -val/0x100000000|0));}}function Long_toNumber(val){var lo=val.lo;var hi=val.hi;if(lo<0){lo+=0x100000000;}return 0x100000000*hi+lo;}var $rt_imul=Math.imul||function(a,b){var ah=a>>>16&0xFFFF;var al=a&0xFFFF;var bh=b>>>16&0xFFFF;var bl=b&0xFFFF;return al*bl+(ah*bl+al*bh<<16>>>0)|0;};var $rt_udiv=function(a,b){if(a<0){a+=0x100000000;}if(b<0){b+=0x100000000;}return a/b|0;};var $rt_umod=function(a,b){if(a<0){a+=0x100000000;}if
+(b<0){b+=0x100000000;}return a%b|0;};function $rt_setCloneMethod(target, f){target.I=f;}
+function $rt_cls(cls){return BQ(cls);}
+function $rt_str(str) {if (str === null) {return null;}var characters = $rt_createCharArray(str.length);var charsBuffer = characters.data;for (var i = 0; i < str.length; i = (i + 1) | 0) {charsBuffer[i] = str.charCodeAt(i) & 0xFFFF;}return Co(characters);}
+function $rt_ustr(str) {if (str === null) {return null;}var data = str.b.data;var result = "";for (var i = 0; i < data.length; i = (i + 1) | 0) {result += String.fromCharCode(data[i]);}return result;}
+function $rt_objcls() { return B; }
+function $rt_nullCheck(val) {if (val === null) {$rt_throw(Cs());}return val;}
+function $rt_intern(str) {return str;}function $rt_getThread(){return null;}
+function $rt_setThread(t){}
+function $rt_createException(message){return Ct(message);}
+function $rt_createStackElement(className,methodName,fileName,lineNumber){return null;}
+function $rt_setStack(e,stack){}
+var A=Object.create(null);
+var BM=$rt_throw;var Cu=$rt_compare;var Cv=$rt_nullCheck;var BP=$rt_cls;var Cp=$rt_createArray;var Cw=$rt_isInstance;var Cx=$rt_nativeThread;var Cy=$rt_suspending;var Cz=$rt_resuming;var CA=$rt_invalidPointer;var C=$rt_s;var Bu=$rt_eraseClinit;var Cj=$rt_imul;var CB=$rt_wrapException;
+function B(){this.$id$=0;}
+function CC(){var a=new B();G(a);return a;}
+function G(a){return;}
+function Bm(a){return BQ(a.constructor);}
+function B6(a){return Cm().i(Bm(a).x()).i(C(0)).i(Bl(BD(a))).h();}
+function BD(a){var b,c;b=a;if(!b.$id$){c=$rt_nextId();b.$id$=c;}return a.$id$;}
+function F(){var a=this;B.call(a);a.y=null;a.o=0;a.l=0;}
+function CD(){var a=new F();Bg(a);return a;}
+function CE(a){var b=new F();Y(b,a);return b;}
+function Bg(a){a.o=1;a.l=1;a.n();}
+function Y(a,b){a.o=1;a.l=1;a.n();a.y=b;}
+function B8(a){return a;}
+function R(){F.call(this);}
+function CF(){var a=new R();Bz(a);return a;}
+function CG(a){var b=new R();Bb(b,a);return b;}
+function Bz(a){Bg(a);}
+function Bb(a,b){Y(a,b);}
+function S(){R.call(this);}
+function CH(){var a=new S();Bf(a);return a;}
+function Ct(a){var b=new S();BZ(b,a);return b;}
+function Bf(a){Bz(a);}
+function BZ(a,b){Bb(a,b);}
+function T(){S.call(this);}
+function CI(){var a=new T();BF(a);return a;}
+function BF(a){Bf(a);}
+function BH(){B.call(this);}
+function BV(b,c){var d,e,f,g;d=b.data;e=$rt_createCharArray(c);f=B7(c,d.length);g=0;while(g<f){e.data[g]=d[g];g=g+1|0;}return e;}
+function N(){F.call(this);}
+function CJ(a){var b=new N();Bc(b,a);return b;}
+function Bc(a,b){Y(a,b);}
+function I(){}
+function P(){B.call(this);}
+function J(){}
+function V(){P.call(this);}
+var CK=null;function Cf(){Cf=Bu(V);BL();}
+function Bl(b){Cf();return BO(b,4);}
+function Bv(b){var c,d,e;Cf();if(!b)return 32;c=0;d=b>>>16;if(d)c=16;else d=b;e=d>>>8;if(!e)e=d;else c=c|8;d=e>>>4;if(!d)d=e;else c=c|4;e=d>>>2;if(!e)e=d;else c=c|2;if(e>>>1)c=c|1;return (32-c|0)-1|0;}
+function BL(){CK=BP($rt_intcls());}
+function E(){N.call(this);}
+function CL(a){var b=new E();Bq(b,a);return b;}
+function Bq(a,b){Bc(a,b);}
+function H(){E.call(this);}
+function CM(a){var b=new H();W(b,a);return b;}
+function W(a,b){Bq(a,b);}
+function BB(){H.call(this);}
+function CN(a){var b=new BB();B_(b,a);return b;}
+function B_(a,b){W(a,b);}
+function Br(){B.call(this);}
+function Ca(b){return $rt_str(b.$meta.name);}
+function K(){B.call(this);}
+var CO=null;var CP=null;function Cn(){Cn=Bu(K);B$();}
+function Bw(b,c){Cn();if(c>=2&&c<=36&&b<c)return b<10?(48+b|0)&65535:((97+b|0)-10|0)&65535;return 0;}
+function B$(){CO=BP($rt_charcls());CP=Cp(K,128);}
+function By(){B.call(this);}
+function BO(b,c){var d,e,f,g,h,i,j,k;if(!b)return C(1);d=1<<c;e=d-1|0;f=(((32-Bv(b)|0)+c|0)-1|0)/c|0;g=$rt_createCharArray(f);h=Cj(f-1|0,c);i=0;while(h>=0){j=g.data;k=i+1|0;j[i]=Bw(b>>>h&e,d);h=h-c|0;i=k;}return Co(g);}
+function M(){}
+function O(){var a=this;B.call(a);a.a=null;a.d=0;}
+function CQ(){var a=new O();BA(a);return a;}
+function CR(a){var b=new O();Bn(b,a);return b;}
+function BA(a){Bn(a,16);}
+function Bn(a,b){G(a);a.a=$rt_createCharArray(b);}
+function Bd(a,b){return a.m(a.d,b);}
+function Bi(a,b,c){var d,e,f;if(b>=0&&b<=a.d){if(c===null)c=C(2);else if(c.s())return a;a.p(a.d+c.e()|0);d=a.d-1|0;while(d>=b){a.a.data[d+c.e()|0]=a.a.data[d];d=d+(-1)|0;}a.d=a.d+c.e()|0;d=0;while(d<c.e()){e=a.a.data;f=b+1|0;e[b]=c.j(d);d=d+1|0;b=f;}return a;}BM(BW());}
+function Bp(a,b){var c,d;if(a.a.data.length>=b)return;if(a.a.data.length>=1073741823)c=2147483647;else{d=a.a.data.length*2|0;c=Bh(b,Bh(d,5));}a.a=BV(a.a,c);}
+function BG(a){return Ch(a.a,0,a.d);}
+function Bx(){B.call(this);}
+function B7(b,c){if(b<c)c=b;return c;}
+function Bh(b,c){if(b>c)c=b;return c;}
+function Q(){var a=this;B.call(a);a.b=null;a.g=0;}
+var CS=null;function BT(){BT=Bu(Q);BR();}
+function Co(a){var b=new Q();Bj(b,a);return b;}
+function Ch(a,b,c){var d=new Q();BC(d,a,b,c);return d;}
+function Bj(a,b){var c,d,e;BT();c=b.data;G(a);d=c.length;a.b=$rt_createCharArray(d);e=0;while(e<d){a.b.data[e]=c[e];e=e+1|0;}}
+function BC(a,b,c,d){var e,f;BT();G(a);a.b=$rt_createCharArray(d);e=0;while(e<d){f=b.data;a.b.data[e]=f[e+c|0];e=e+1|0;}}
+function B9(a,b){if(b>=0&&b<a.b.data.length)return a.b.data[b];BM(BW());}
+function B3(a){return a.b.data.length;}
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