StatScale.java

package fr.wolf.game.gameobjects;

import fr.wolf.game.utils.RPGRandom;

public class StatScale
{
    public static final int NUM_STATS = 8;
    public static final double MIN_STATSCALE = 0.125D;
    public static final double MAX_STAT_BOOST = 0.25D;
    public static final int VITALITY = 0;
    public static final int SPEED = 1;
    // public static final int UNKNOWN1 = 2;
    // public static final int UNKNOWN2 = 3;
    public static final int STRENGTH = 4;
    public static final int PHYSICAL_DEFENSE = 5;
    public static final int MAGIC = 6;
    public static final int MAGIC_DEFENCE = 7;

    private double[] scales, scaleBonus;
    private RPGRandom rand;

    public StatScale()
    {
        scales = new double[NUM_STATS];
        scaleBonus = new double[NUM_STATS];
        rand = new RPGRandom();
    }

    public void generateStatScale()
    {
        double sum = 0;
        for(int i = 0; i < NUM_STATS; i++)
        {
            double val = Math.abs(rand.nextDouble());
            scales[i] = val;
            sum += val;
        }

        // Normalize scales
        for(int i = 0; i < NUM_STATS; i++)
        {
            scales[i] /= sum;
            scales[i] *= (1.0 - MIN_STATSCALE * MIN_STATSCALE * NUM_STATS);
            scales[i] += MIN_STATSCALE * MIN_STATSCALE;
            scales[i] = Math.sqrt(scales[i]);
        }
    }

    public double getScale(int stat)
    {
        return scales[stat] + (scaleBonus[stat] * MAX_STAT_BOOST);
    }

    public void addScaleBonus(int stat, double bonus)
    {
        if(bonus > 1)
            bonus = 1;
        if(bonus < 0)
            bonus = 0;
        scaleBonus[stat] = bonus;
    }
}