mutation.java

来自「java实现的遗传算法RPS」· Java 代码 · 共 29 行

package net.leonmax.rpsGame.gaEngine;

import net.leonmax.rpsGame.*;

public class Mutation {
	Population[] mutate(Population[] p) {
        int mutNum = (int)((double)GlobalData.pop_num * (double)GlobalData.pop_size * GlobalData.mutRatio);
        RanMachine r = new RanMachine();
        r.resetCandidate(GlobalData.pop_num * GlobalData.pop_size);
        System.out.println();
        for (int i = 0; i < mutNum; i++)
        {
            int mutPoint = r.elect() + 1;
            int mutPop = mutPoint / GlobalData.pop_size;             // the population where mutation point located
            int mutPos = mutPoint - mutPop * GlobalData.pop_size;    // the position of the mutation point in the population
            if (mutPos == 0) mutPop--;
            else mutPos--;
            RanMachine rps = new RanMachine();
            rps.resetCandidate(3);
            p[mutPop].setGaSeq(mutPos,rps.ranRPS(p[mutPop].getGaSeq(mutPos)));
            System.out.print("Mutate Point"+mutPoint+"\t\t");
            System.out.print("Mutate Population"+mutPop+"\t\t");
            System.out.println("Mutate Position"+mutPos+"\t\t");
        }
        System.out.println();
		return p;
	}
}