CnC_Remastered_Collection

Command and Conquer: Red Alert
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RANDOM.H (3858B)

      1 //
      2 // Copyright 2020 Electronic Arts Inc.
      3 //
      4 // TiberianDawn.DLL and RedAlert.dll and corresponding source code is free 
      5 // software: you can redistribute it and/or modify it under the terms of 
      6 // the GNU General Public License as published by the Free Software Foundation, 
      7 // either version 3 of the License, or (at your option) any later version.
      8 
      9 // TiberianDawn.DLL and RedAlert.dll and corresponding source code is distributed 
     10 // in the hope that it will be useful, but with permitted additional restrictions 
     11 // under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT 
     12 // distributed with this program. You should have received a copy of the 
     13 // GNU General Public License along with permitted additional restrictions 
     14 // with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
     15 
     16 /* $Header: /CounterStrike/RANDOM.H 1     3/03/97 10:25a Joe_bostic $ */
     17 /***********************************************************************************************
     18  ***              C O N F I D E N T I A L  ---  W E S T W O O D  S T U D I O S               ***
     19  ***********************************************************************************************
     20  *                                                                                             *
     21  *                 Project Name : Command & Conquer                                            *
     22  *                                                                                             *
     23  *                    File Name : RANDOM.H                                                     *
     24  *                                                                                             *
     25  *                   Programmer : Joe L. Bostic                                                *
     26  *                                                                                             *
     27  *                   Start Date : 02/27/96                                                     *
     28  *                                                                                             *
     29  *                  Last Update : February 27, 1996 [JLB]                                      *
     30  *                                                                                             *
     31  *---------------------------------------------------------------------------------------------*
     32  * Functions:                                                                                  *
     33  * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
     34 
     35 #ifndef RANDOM_H
     36 #define RANDOM_H
     37 
     38 /**********************************************************************
     39 ** Enable this define to turn on the random # counters.  This must not
     40 ** be defined for the release version, or saved games won't work!
     41 */
     42 //#define RANDOM_COUNT
     43 
     44 
     45 /*
     46 **	This class functions like a 'magic' int value that returns a random number
     47 **	every time it is read. To set the "random seed" for this, just assign a number
     48 **	to the object (just as you would if it were a true 'int' value). Take note that although
     49 **	this class will return an 'int', the actual significance of the random number is
     50 **	limited to 15 bits (0..32767).
     51 */
     52 class RandomClass {
     53 	public:
     54 		RandomClass(unsigned seed=0);
     55 
     56 		operator int(void) {return(operator()());};
     57 		int operator() (void);
     58 		int operator() (int minval, int maxval);
     59 
     60 		enum {
     61 			SIGNIFICANT_BITS=15				// Random number bit significance.
     62 		};
     63 
     64 		unsigned long Seed;
     65 
     66 #ifdef RANDOM_COUNT
     67 		unsigned long Count1;
     68 		unsigned long Count2;
     69 #endif
     70 
     71 	protected:
     72 		/*
     73 		**	Internal working constants that are used to generate the next
     74 		**	random number.
     75 		*/
     76 		enum {
     77 			MULT_CONSTANT=0x41C64E6D,		// K multiplier value.
     78 			ADD_CONSTANT=0x00003039,		// K additive value.
     79 			THROW_AWAY_BITS=10				// Low bits to throw away.
     80 		};
     81 };
     82 
     83 #endif