165 lines
3.4 KiB
C
165 lines
3.4 KiB
C
/*
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THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
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SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
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END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
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ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
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IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
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SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
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FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
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CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
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AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
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COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
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*/
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#ifdef HAVE_CONFIG_H
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#include <conf.h>
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#endif
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#ifdef RCS
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static char rcsid[] = "$Id: text.c,v 1.6 2002-10-03 03:46:35 btb Exp $";
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "pstypes.h"
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#include "cfile.h"
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#include "u_mem.h"
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#include "error.h"
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#include "inferno.h"
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#include "text.h"
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#include "args.h"
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#include "compbit.h"
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char *text;
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char *Text_string[N_TEXT_STRINGS];
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void free_text()
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{
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d_free(text);
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}
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// rotates a byte left one bit, preserving the bit falling off the right
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void
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encode_rotate_left(char *c)
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{
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int found;
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found = 0;
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if (*c & 0x80)
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found = 1;
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*c = *c << 1;
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if (found)
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*c |= 0x01;
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}
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//decode and encoded line of text
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void decode_text_line(char *p)
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{
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for (;*p;p++) {
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encode_rotate_left(p);
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*p = *p ^ BITMAP_TBL_XOR;
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encode_rotate_left(p);
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}
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}
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#include <unistd.h>
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//load all the text strings for Descent
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void load_text()
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{
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CFILE *tfile;
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CFILE *ifile;
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int len,i, have_binary = 0;
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char *tptr;
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char *filename="descent.tex";
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if ((i=FindArg("-text"))!=0)
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filename = Args[i+1];
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if ((tfile = cfopen(filename,"rb")) == NULL) {
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filename="descent.txb";
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if ((ifile = cfopen(filename, "rb")) == NULL) {
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Error("Cannot open file DESCENT.TEX or DESCENT.TXB\nIs descent2.hog in %s?", AltHogdir_initialized?AltHogDir:"current directory");
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}
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have_binary = 1;
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len = cfilelength(ifile);
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MALLOC(text,char,len);
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atexit(free_text);
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cfread(text,1,len,ifile);
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cfclose(ifile);
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} else {
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int c;
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char * p;
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len = cfilelength(tfile);
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MALLOC(text,char,len);
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atexit(free_text);
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//fread(text,1,len,tfile);
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p = text;
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do {
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c = cfgetc( tfile );
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if ( c != 13 )
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*p++ = c;
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} while ( c!=EOF );
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cfclose(tfile);
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}
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for (i=0,tptr=text;i<N_TEXT_STRINGS;i++) {
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char *p;
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Text_string[i] = tptr;
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tptr = strchr(tptr,'\n');
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#ifdef MACINTOSH // total hack for mac patch since they don't want to patch data.
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if (!tptr && (i == 644) )
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break;
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#else
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if (!tptr)
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{
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Warning("Not enough strings in text file - expecting %d, found %d\nThis probably means you have the wrong version of the descent 2 datafiles. You need version 1.2\n",N_TEXT_STRINGS,i);
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if (i == 644) break;
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}
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#endif
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if ( tptr ) *tptr++ = 0;
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if (have_binary)
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decode_text_line(Text_string[i]);
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//scan for special chars (like \n)
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for (p=Text_string[i];(p=strchr(p,'\\'));) {
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char newchar;
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if (p[1] == 'n') newchar = '\n';
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else if (p[1] == 't') newchar = '\t';
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else if (p[1] == '\\') newchar = '\\';
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else
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Error("Unsupported key sequence <\\%c> on line %d of file <%s>",p[1],i+1,filename);
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p[0] = newchar;
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strcpy(p+1,p+2);
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p++;
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}
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}
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//Assert(tptr==text+len || tptr==text+len-2);
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}
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