package tangedyn;

import ec.util.MersenneTwisterFast;

public class VengeanceSim {
	boolean DEBUG = false;
	
	public void run(double pAvoid, double bossInterval, int samples) {
		MersenneTwisterFast mRandom = new MersenneTwisterFast();
		int mSamples = 0;
		double mTotalVengeance = 0.0;
		double mVengeance = 1.0;
		double mTotalVengeanceSq = 0.0;
		boolean wasAttacked = false;
		boolean wasHit = false;
		
		double nextAttack = 0.0;
		double nextVengeanceCheck = 0.05;
		
		while (mSamples < samples) {
			if (nextAttack < nextVengeanceCheck) {
				wasAttacked = true;
				if (!mRandom.nextBoolean(pAvoid)) wasHit = true;
				if (DEBUG) System.out.println(nextAttack + " Attack " + (wasHit ? "HIT" : "MISS"));
				nextAttack += bossInterval;
			}
			else {
				if (!wasAttacked) mVengeance = Math.max(0.0, mVengeance - .1);
				else if (wasHit) mVengeance = 1.0;
				else mVengeance *= .95;
				if (DEBUG) System.out.println(nextVengeanceCheck + " Vengeance = " + mVengeance);
				nextVengeanceCheck += 2.0;
				mTotalVengeance += mVengeance;
				mTotalVengeanceSq += mVengeance * mVengeance;
				mSamples ++;
				wasHit = wasAttacked = false;
			}
		}
		
		double vengeanceMean = mTotalVengeance / mSamples;
		double stddev = Math.sqrt(mTotalVengeanceSq / mSamples - (vengeanceMean * vengeanceMean));
		
		System.out.println("average vengeance = " + vengeanceMean + " +/- " + stddev);
	}
	
	
	public static void main(String args[]) {
		VengeanceSim sim = new VengeanceSim();
		sim.run(0.44465738881804, 5, 1000000);
	}
}