Combat Results Test

BrianTest.java

package com.github.rmcdouga.cow.combat_simulator;

import java.util.Random;
import java.util.StringJoiner;

import com.github.rmcdouga.cow.CombatResultsTable;
import com.github.rmcdouga.cow.units.UnitType;
import com.github.rmcdouga.cow.units.UnitTypes;

public class BrianTest {

	final static UnitType unit1 = UnitTypes.Dragon;
	final static UnitType unit2 = UnitTypes.Destroyer;
	final static int NUM_SAMPLES = 1000000;
	
	public static void main(String[] args) {
		Random random = new Random();
		int numHits[] = new int[unit1.getPower() + 1];
		
		System.out.println(unit1.getMnemonic() + " vs " + unit2.getMnemonic() + ", target #=" + 59);

		for (int i = 0; i < NUM_SAMPLES; i++) {
			int results = performRoundOfAttacks(unit1.getPower(), 100 - 59, random);
			numHits[results] += 1;
		}
		
		StringJoiner sj = new StringJoiner(",");
		for (int i = 0; i < unit1.getPower() + 1; i++) {
			sj.add(String.format("%d=%2.2f%%", i, ((numHits[i] * 100.0)  / NUM_SAMPLES)));
		}
		
		System.out.println(sj.toString());
	}
	private static int performRoundOfAttacks(int numAttacks, int targetNum, Random local_random) {
		int numHits = 0;
		for(int i = 0; i < numAttacks; i++) {
			if (determineHit(targetNum, local_random)) {
				numHits++;
			}
		}
		return(numHits);
	}
	
	private static boolean determineHit(int targetNum, Random local_random) {
		int randomNum = local_random.nextInt(100) + 1;
//		System.out.println("ATTACK RESOLUTION targetNum=" + targetNum + ", randomNum=" + randomNum + ".");
		return (randomNum >= targetNum);
	}
	

}