/*
 * DiceSim.cpp
 *
 *  Created on: 13.05.2011
 *      Author: sven
 */

#include <cstdlib>
#include <ctime>
#include <iostream>

#include "DiceSim.h"

DiceSim::DiceSim(unsigned numDice, unsigned numRolls)
:mNumDice(numDice),mNumRolls(numRolls),mEyesAbsFreq((numDice * 6))
{
	srand(time(NULL));
	for(mResultIter = mEyesAbsFreq.begin() ; mResultIter != mEyesAbsFreq.end() ; mResultIter++)
	{
		*mResultIter = 0;
	}
	for(unsigned n=0; n< numRolls; n++)
	{
		unsigned eyesSum = 0;
		for(unsigned d=0; d<numDice; d++) {
			eyesSum += rollDie();
		}
		mEyesAbsFreq.at(eyesSum - numDice)++;
	}
	unsigned freqSum = 0;
	for(mResultIter = mEyesAbsFreq.begin() ; mResultIter != mEyesAbsFreq.end() ; mResultIter++)
	{
		freqSum += *mResultIter;
	}
	std::cout << "Num rolls: " << freqSum << std::endl;
}

DiceSim::~DiceSim() {
	// TODO Auto-generated destructor stub
}

unsigned DiceSim::rollDie()
{
	unsigned eyes = 0;
	eyes = 1 + (int) (6.0 * (rand() / (RAND_MAX + 1.0)));
	return eyes;
}