MutatingValueUtil.java

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package com.fs.starfarer.api.util;
 
public class MutatingValueUtil {
 
    private float value;
    
    private float min;
    private float max;
    
    private float rate;
    private float rateSign;
    
    private float sign = 0;
 
    public MutatingValueUtil() {
        
    }
    
    public MutatingValueUtil(float min, float max, float rate) {
        this.min = min;
        this.max = max;
        this.rate = Math.abs(rate);
        
        value = min + (float) Math.random() * (max - min);
        rateSign = Math.signum(rate);
    }
    
    public void advance(float amount) {
        if (rateSign != 0) {
            value += amount * rate * rateSign;
        } else {
            value += amount * rate;
        }
        if (value > max) {
            rateSign = -1f;
        } else if (value < min) {
            rateSign = 1f;
        }
    }
 
    public float getValue() {
        if (sign != 0) return value * sign;
        return value;
    }
 
    public void setValue(float value) {
        this.value = value;
    }
 
    public float getMin() {
        return min;
    }
 
    public void setMin(float min) {
        this.min = min;
    }
 
    public float getMax() {
        return max;
    }
 
    public void setMax(float max) {
        this.max = max;
    }
 
    public float getRate() {
        return rate;
    }
 
    public void setRate(float rate) {
        //System.out.println("RATE: " + rate);
        this.rate = Math.abs(rate);
        //rateSign = Math.signum(rate);
    }
 
    public float getSign() {
        return sign;
    }
 
    public void setSign(float sign) {
        this.sign = Math.signum(sign);
    }
    
    public void setRandomSign() {
        sign = (float) Math.signum(Math.random() - 0.5f);
        if (sign == 0) sign = 1;
    }
    public void setRandomRateSign() {
        rateSign = (float) Math.signum(Math.random() - 0.5f);
        if (rateSign == 0) rateSign = 1;
    }
 
 
    public float getRateSign() {
        return rateSign;
    }
 
 
    public void setRateSign(float rateSign) {
        this.rateSign = rateSign;
    }
    
    
    
}