mirror of
https://github.com/electronicarts/CnC_Remastered_Collection
synced 2024-04-26 08:22:17 +12:00
03416d24e1
Initial commit of original Tiberian Dawn and Red Alert source code converted to build as DLLs, and compatible with the release version of Command & Conquer Remastered.
171 lines
7.5 KiB
C++
171 lines
7.5 KiB
C++
//
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// Copyright 2020 Electronic Arts Inc.
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//
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is free
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// software: you can redistribute it and/or modify it under the terms of
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// the GNU General Public License as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is distributed
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// in the hope that it will be useful, but with permitted additional restrictions
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// under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT
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// distributed with this program. You should have received a copy of the
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// GNU General Public License along with permitted additional restrictions
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// with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
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/* $Header: F:\projects\c&c0\vcs\code\rand.cpv 4.35 04 Jul 1996 16:14:56 JOE_BOSTIC $ */
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/***************************************************************************
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* *
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* Project Name : Command & Conquer *
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* *
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* File Name : RAND.CPP *
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* *
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* Programmer : Bill R. Randolph *
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* *
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* Start Date : 04/25/95 *
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* *
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* Last Update : June 17, 1995 [JLB] *
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* *
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*-------------------------------------------------------------------------*
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* Functions: *
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* Sim_IRandom -- Returns minval to maxval, inclusive *
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* Sim_Random -- Returns 0 - 255 *
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* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#include "function.h"
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#include "COORDA.h"
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int SimRandIndex = 0;
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/***************************************************************************
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* Sim_Random -- Returns 0 - 255 *
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* *
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* INPUT: *
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* none. *
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* *
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* OUTPUT: *
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* 0 - 255, at random *
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* *
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* WARNINGS: *
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* none. *
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* *
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* HISTORY: *
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* 04/25/1995 BRR : Created. *
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* 06/17/1995 JLB : Takes advantage of character math wrap. *
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*=========================================================================*/
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int Sim_Random(void)
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{
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static unsigned char _randvals[] = {
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0x47, 0xce, 0xc6, 0x6e, 0xd7, 0x9f, 0x98, 0x29, 0x92, 0x0c, 0x74, 0xa2,
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0x65, 0x20, 0x4b, 0x4f, 0x1e, 0xed, 0x3a, 0xdf, 0xa5, 0x7d, 0xb5, 0xc8,
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0x86, 0x01, 0x81, 0xca, 0xf1, 0x17, 0xd6, 0x23, 0xe1, 0xbd, 0x0e, 0xe4,
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0x62, 0xfa, 0xd9, 0x5c, 0x68, 0xf5, 0x7f, 0xdc, 0xe7, 0xb9, 0xc4, 0xb3,
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0x7a, 0xd8, 0x06, 0x3e, 0xeb, 0x09, 0x1a, 0x31, 0x3f, 0x46, 0x28, 0x12,
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0xf0, 0x10, 0x84, 0x76, 0x3b, 0xc5, 0x53, 0x18, 0x14, 0x73, 0x7e, 0x59,
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0x48, 0x93, 0xaa, 0x1d, 0x5d, 0x79, 0x24, 0x61, 0x1b, 0xfd, 0x2b, 0xa8,
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0xc2, 0xdb, 0xe8, 0x2a, 0xb0, 0x25, 0x95, 0xab, 0x96, 0x83, 0xfc, 0x5f,
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0x9c, 0x32, 0x78, 0x9a, 0x9e, 0xe2, 0x8e, 0x35, 0x4c, 0x41, 0xa1, 0x69,
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0x5a, 0xfe, 0xa7, 0xa4, 0xf6, 0x6d, 0xc1, 0x58, 0x0a, 0xcf, 0xea, 0xc3,
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0xba, 0x85, 0x99, 0x8d, 0x36, 0xb6, 0xdd, 0xd3, 0x04, 0xe6, 0x45, 0x0d,
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0x60, 0xae, 0xa3, 0x22, 0x4d, 0xe9, 0xc9, 0x9b, 0xb7, 0x0f, 0x02, 0x42,
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0xf9, 0x0b, 0x8f, 0x43, 0x44, 0x87, 0x70, 0xbe, 0xe3, 0xf8, 0xee, 0xa9,
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0xbc, 0xc0, 0x67, 0x33, 0x16, 0x37, 0x57, 0xad, 0x5e, 0x9d, 0x64, 0x40,
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0x54, 0x05, 0x2c, 0xe0, 0xb2, 0x97, 0x08, 0xaf, 0x75, 0x8a, 0x5b, 0xfb,
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0x4e, 0xbf, 0x91, 0xf3, 0xcb, 0x7c, 0x63, 0xef, 0x89, 0x52, 0x6c, 0x2f,
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0x21, 0x4a, 0xf7, 0xcd, 0x2e, 0xf4, 0xc7, 0x6f, 0x19, 0xb1, 0x66, 0xcc,
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0x90, 0x8c, 0x50, 0x51, 0x26, 0x7b, 0xda, 0x49, 0x80, 0x30, 0x55, 0x1f,
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0xd2, 0xb4, 0xd1, 0xd5, 0x6b, 0xf2, 0x72, 0xbb, 0x13, 0x3d, 0xff, 0x15,
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0x38, 0xe5, 0xd4, 0xde, 0x2d, 0x27, 0x94, 0xa0, 0xd0, 0x39, 0x82, 0x8b,
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0x03, 0xac, 0x3c, 0x34, 0x77, 0xb8, 0xec, 0x00, 0x07, 0x1c, 0x88, 0xa6,
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0x56, 0x11, 0x71, 0x6a,
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};
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((unsigned char&)SimRandIndex)++;
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// SimRandIndex &= 0xff;
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return(_randvals[SimRandIndex]);
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}
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/***************************************************************************
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* Sim_IRandom -- returns minval to maxval, inclusive *
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* *
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* INPUT: *
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* minval,maxval range limits *
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* *
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* OUTPUT: *
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* random value *
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* *
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* WARNINGS: *
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* none. *
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* *
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* HISTORY: *
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* 04/25/1995 BRR : Created. *
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* 06/17/1995 JLB : Uses fixed point math helper routine. *
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*=========================================================================*/
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int Sim_IRandom(int minval, int maxval)
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{
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return(Fixed_To_Cardinal((maxval-minval), Sim_Random()) + minval);
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}
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/*
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** This routine can be used to create the _RandVals[] table. It will be
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** different every time it's run.
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*/
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#if 0
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <conio.h>
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void main(void);
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void main(void)
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{
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int i;
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FILE *fp;
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int r;
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char is_used[256];
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char rand_val[256];
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srand ( time ( NULL ) ) ;
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for (i = 0; i < 256; i++) {
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is_used[i] = 0;
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}
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/*
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** Store the digits 0 to 255 in a random order within the 'rand_val' array
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** This ensures our random number sequence represents every value.
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*/
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for (i = 0; i < 256; i++) {
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if (kbhit()!=0) {
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printf("ABORTED!\n");
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break;
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}
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r = (rand() * 256) / RAND_MAX; // r is the index into array
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if (is_used[r]==0) {
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is_used[r] = 1;
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rand_val[r] = i;
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} else {
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i--;
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}
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}
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fp = fopen("rand.cpp","wt");
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if (fp==NULL) {
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printf("File error\n");
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exit(0);
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}
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fprintf(fp, "unsigned char _RandVals[] = {\n");
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for (i = 0; i < 256; i++) {
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fprintf(fp,"0x%02x,\n",rand_val[i]);
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}
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fprintf(fp,"};\n");
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fclose(fp);
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}
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#endif
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