path-game/src/pathgame/algorithm/Permutation.java

package pathgame.algorithm;

public class Permutation {
    private final int size;
    private int[] vals;
    private int[] minVals;
    private int minCost = Integer.MAX_VALUE;
    private final int thingsPerPos;

    public Permutation(int listSize, int thingsPerPos) {
        this.thingsPerPos = thingsPerPos;
        this.size = (listSize / thingsPerPos) - 1;
        vals = new int[size];

    }

    public int getValAtPos(int pos) {
        return vals[pos];
    }

    public boolean isPosAtMax(int pos) {
        if(vals[pos] == getMaxOfPos(pos)) {
            return true;
        }
        return false;
    }

    public int getMaxOfPos(int pos) {
        return thingsPerPos * (size - pos);
    }

    public int size() {
        return size;
    }

    public void increaseAtPos(int pos) {
        vals[pos]++;
        for(int i = pos + 1; i < size; i++) {
            vals[i] = 0;
        }
    }

    public int getMinCost() {
        return minCost;
    }

    public void setMinCost(int minCost) {
        this.minCost = minCost;
        minVals = vals.clone();
    }

    public void makePermutMinimal() {
        vals = minVals.clone();
    }

    public void printPermut() {
        for(int i = 0; i < size; i++) {
            System.out.print(vals[i] + " ");
        }
        System.out.println();
    }

    public void printMinPermut() {
        for(int i = 0; i < size; i++) {
            System.out.print(minVals[i] + " ");
        }
        System.out.println();
    }
}