38 lines
641 B
JavaScript
38 lines
641 B
JavaScript
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//>>built
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define("dojox/math/random/prng4",["dojo","dojox"],function(_1,_2){
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_1.getObject("math.random.prng4",true,_2);
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function _3(){
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this.i=0;
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this.j=0;
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this.S=new Array(256);
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};
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_1.extend(_3,{init:function(_4){
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var i,j,t,S=this.S,_5=_4.length;
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for(i=0;i<256;++i){
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S[i]=i;
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}
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j=0;
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for(i=0;i<256;++i){
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j=(j+S[i]+_4[i%_5])&255;
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t=S[i];
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S[i]=S[j];
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S[j]=t;
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}
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this.i=0;
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this.j=0;
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},next:function(){
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var t,i,j,S=this.S;
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this.i=i=(this.i+1)&255;
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this.j=j=(this.j+S[i])&255;
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t=S[i];
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S[i]=S[j];
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S[j]=t;
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return S[(t+S[i])&255];
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}});
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_2.math.random.prng4=function(){
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return new _3();
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};
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_2.math.random.prng4.size=256;
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return _2.math.random.prng4;
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});
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