package test;

import java.math.BigInteger;

import edu.tfzr.nemanja.Congruence;

public class Generators {
        public Congruence cong[] = new Congruence[8]; //linear congruence RNGs

        //svih 8
        public Generators(String seed) {
            cong[0] = new Congruence("65539", "2147483648", seed); //m=2*31
            cong[1] = new Congruence("16807", "2147483647", seed); //m=2*31-1
            cong[2] = new Congruence("40692", "2147483399", seed); //m=2*31-249
            cong[3] = new Congruence("48271", "2147483647", seed); //m=2*31-1
            cong[4] = new Congruence("62089911", "2147483647", seed); //m=2*31-1
            cong[5] = new Congruence("69069", "4294967296", seed); //m=2*32
            cong[6] = new Congruence("31167285", "281474976710656", seed); //m=2*48
            cong[7] = new Congruence("6364136223846793005", "18446744073709551616", seed); //m=2*64

            cong[0].count=cong.length;
        }

        //sledeca vrednost
        public BigInteger nextValue(int i) {
            return cong[i].nextValue();
        }

        //vraca double
        public double doubleValue(int i) {
            return cong[i].doubleValue();
    }
        public static void main(String[] args) {
            int iCong = 7;
            String seed = "39485389";
            Generators gen = new Generators(seed);
            //gen cong[1].count=90
            System.out.println(gen.cong[5].count + " Generator: " + iCong +", multiplier: " + gen.cong[5].multiplier + ", modulus: " + gen.cong[5].modulus+", seed:" +gen.cong[5].seed);

            for(int i=0; i<3; i++) {
                BigInteger x = gen.nextValue(i);
                System.out.println(x + "\t" + gen.doubleValue(iCong));
            }
        }
}