35 lines
732 B
TypeScript
35 lines
732 B
TypeScript
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import { JSRandomEngine } from "./JSRandomEngine";
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import { LCG } from "./LCG";
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import { RandomEngine, SeedableRandomEngine } from "./RandomEngine";
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export class SeedGenerator
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{
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static fromText( source:string, randomEngine:SeedableRandomEngine<any> = null )
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{
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if ( ! randomEngine )
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{
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randomEngine = new LCG();
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}
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randomEngine.setSeed( 18593 );
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let seed = 0;
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for ( let i = 0; i < source.length; i++ )
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{
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let characterValue = source.charCodeAt( i );
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seed += characterValue * 767417 + 13 + randomEngine.next() * characterValue;
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if ( seed > 32000 )
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{
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seed = seed % 32000;
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}
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}
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console.log( "SEED FROM TEXT:", source, seed )
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return seed;
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}
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}
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