//===========================================================================//
// File:	random.cc                                                           //
// Project: MUNGA           Brick: Math Library                              //
// Contents: Interface specification for the random number generator         //
//---------------------------------------------------------------------------//
//   Date    Who  Modification                                               //
// --------  ---  ---------------------------------------------------------- //
// 11/20/93  JMA  Initial coding.                                            //
//---------------------------------------------------------------------------//
// Copyright (C) 1993-1995, Virtual World Entertainment, Inc.                //
// All Rights reserved worldwide                                             //
// This unpublished sourcecode is PROPRIETARY and CONFIDENTIAL               //
//===========================================================================//

#if !defined(RANDOM_HPP)
#	define RANDOM_HPP

#	if !defined(SCALAR_HPP)
#		include <scalar.hpp>
#	endif

	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Random ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

	class RandomGenerator SIGNATURED
	{
	 private:
		static int
			Numbers[250];		// the random number table
		static int
			Index;					// the current entry within the table

		static void
			Init();

		static int
			GetRandomInt();

	 public:
		RandomGenerator()
			{if (Index == -1) Init();}

		//
		//------------------------
		// Random number functions
		//------------------------
		//
		int
			GetInt()						// returns 0 .. RAND_MAX
				{return GetRandomInt();}
		operator Scalar();			// returns 0.0f <= x < 1.0f
		int								// returns 0 .. Range-1
			operator ()(int Range);

		static Logical
      	TestClass();
	};

	extern RandomGenerator Random;

	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Die ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

	class Die SIGNATURED
	{
	 private:
		int
			highestRandom,	// the highest random number giving a uniform dist.
			dieSides;		// the number of sides on the die (starting from 1)

	 public:
		Die(int sides);
		operator int();	// returns 1 .. dieSides
	};

#endif