/*
 * dice.hpp
 *
 *  Created on: Sep 23, 2010
 *  Modified November 7, 2016
 *      Author: Michael J. Fischer
 *      for use in Yale course CPSC 427a, Fall 2010
 */

#pragma once
#include "random.hpp"

using namespace std;

//==============================================================================
// Dice abstract base class
//-------------------------------------------------------------------
class Dice {
protected:
	int numDice; // number of dice
	int numSides; // number of sides per die
	int* die; // array of dice.  Face values in range [1, numSides]
	int sum; // sum of faces on die

public:
	Dice(int numDice, int numSides);
	virtual ~Dice();
	virtual void roll() =0; // pure virtual function -- must be defined in derived class
	virtual ostream& print(ostream& out) const;
	virtual ostream& printSummary(ostream& out) const =0;

	int getDie(int k) const {
		return die[k];
	}

	int getSum() const {
		return sum;
	}
};

//==============================================================================
// Random dice -- use class Random as source of "random" numbers
//-------------------------------------------------------------------
class RandDice: public Dice {
private:
	unsigned seed;
	Random rnd; //  random number generator

public:
	RandDice(int numDice, int numSides, unsigned seed);
	~RandDice() {
	}
	void roll();

	ostream& print(ostream& out) const;
	ostream& printSummary(ostream& out) const;
};

//==============================================================================
// File dice -- use file as source of "random" numbers
//-------------------------------------------------------------------
class FileDice: public Dice {
private:
	const char* fileName;
	ifstream in;

public:
	FileDice(int numDice, int numSides, const char* fileName);
	~FileDice();

	void roll();
	ostream& print(ostream& out) const;
	ostream& printSummary(ostream& out) const;
};

//-------------------------------------------------------------------
inline ostream& operator<<(ostream& out, const Dice& dice) {
	return dice.print(out);
}