1924 lines
35 KiB
C
Executable File
1924 lines
35 KiB
C
Executable File
/*
|
||
Copyright (C) 1994-1995 Apogee Software, Ltd.
|
||
|
||
This program is free software; you can redistribute it and/or
|
||
modify it under the terms of the GNU General Public License
|
||
as published by the Free Software Foundation; either version 2
|
||
of the License, or (at your option) any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||
|
||
See the GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with this program; if not, write to the Free Software
|
||
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||
|
||
*/
|
||
|
||
#include "rt_def.h"
|
||
|
||
#ifdef DOS
|
||
#include <malloc.h>
|
||
#include <dos.h>
|
||
#include <conio.h>
|
||
#include <io.h>
|
||
#include <direct.h>
|
||
#elif USE_SDL
|
||
#include "SDL.h"
|
||
#endif
|
||
|
||
#include <stdarg.h>
|
||
#include <fcntl.h>
|
||
#include <errno.h>
|
||
#include <string.h>
|
||
#include <stdio.h>
|
||
#include <ctype.h>
|
||
#include <stdlib.h>
|
||
#include <sys/stat.h>
|
||
#include <time.h>
|
||
#include "watcom.h"
|
||
#include "_rt_util.h"
|
||
#include "rt_util.h"
|
||
#include "isr.h"
|
||
#include "z_zone.h"
|
||
#include "rt_dr_a.h"
|
||
#include "rt_in.h"
|
||
#include "rt_main.h"
|
||
#include "scriplib.h"
|
||
#include "rt_menu.h"
|
||
#include "rt_playr.h"
|
||
#include "version.h"
|
||
#include "develop.h"
|
||
#include "rt_vid.h"
|
||
#include "rt_view.h"
|
||
#include "modexlib.h"
|
||
#include "rt_cfg.h"
|
||
//MED
|
||
#include "memcheck.h"
|
||
|
||
int egacolor[16];
|
||
byte * origpal;
|
||
FILE * errout;
|
||
FILE * debugout;
|
||
FILE * mapdebugout;
|
||
|
||
static boolean SoftErrorStarted=false;
|
||
static boolean DebugStarted=false;
|
||
static boolean MapDebugStarted=false;
|
||
|
||
static unsigned char egargb[48]={ 0x00,0x00,0x00,
|
||
0x00,0x00,0xab,
|
||
0x00,0xab,0x00,
|
||
0x00,0xab,0xab,
|
||
0xab,0x00,0x00,
|
||
0xab,0x00,0xab,
|
||
0xab,0x57,0x00,
|
||
0xab,0xab,0xab,
|
||
0x57,0x57,0x57,
|
||
0x57,0x57,0xff,
|
||
0x57,0xff,0x57,
|
||
0x57,0xff,0xff,
|
||
0xff,0x57,0x57,
|
||
0xff,0x57,0xff,
|
||
0xff,0xff,0x57,
|
||
0xff,0xff,0xff};
|
||
|
||
extern const byte * ROTT_ERR;
|
||
|
||
#if (DEVELOPMENT == 1)
|
||
int TotalStaticMemory=0;
|
||
#endif
|
||
|
||
#define SWAP(a,b) \
|
||
{ \
|
||
a=(a)^(b); \
|
||
b=(a)^(b); \
|
||
a=(a)^(b); \
|
||
} \
|
||
|
||
//******************************************************************************
|
||
//
|
||
// FindDistance
|
||
//
|
||
//******************************************************************************
|
||
|
||
int FindDistance(int ix, int iy)
|
||
{
|
||
int t;
|
||
|
||
ix= abs(ix); /* absolute values */
|
||
iy= abs(iy);
|
||
|
||
if (ix<iy)
|
||
SWAP(ix,iy);
|
||
|
||
t = iy + (iy>>1);
|
||
|
||
return (ix - (ix>>5) - (ix>>7) + (t>>2) + (t>>6));
|
||
}
|
||
|
||
|
||
//******************************************************************************
|
||
//
|
||
// Find_3D_Distance
|
||
//
|
||
//******************************************************************************
|
||
|
||
int Find_3D_Distance(int ix, int iy, int iz)
|
||
{
|
||
int t;
|
||
|
||
ix= abs(ix); /* absolute values */
|
||
iy= abs(iy);
|
||
iz= abs(iz);
|
||
|
||
if (ix<iy)
|
||
SWAP(ix,iy);
|
||
|
||
if (ix<iz)
|
||
SWAP(ix,iz);
|
||
|
||
t = iy + iz;
|
||
|
||
return (ix - (ix>>4) + (t>>2) + (t>>3));
|
||
}
|
||
|
||
//******************************************************************************
|
||
//
|
||
// atan2_appx
|
||
//
|
||
//******************************************************************************
|
||
|
||
int atan2_appx(int dx, int dy)
|
||
{int absdx, absdy;
|
||
fixed angle;
|
||
fixed ratio;
|
||
|
||
|
||
if (!(dx||dy))
|
||
return 0;
|
||
absdx = abs(dx);
|
||
absdy = abs(dy);
|
||
if (absdx >= absdy)
|
||
ratio = FixedDiv2(absdy,absdx);
|
||
else
|
||
ratio = FixedDiv2(absdx,absdy);
|
||
|
||
if (dx >= 0)
|
||
{if (dy >= 0)
|
||
{if (absdx >= absdy)
|
||
angle = ratio; // 1st octant
|
||
else
|
||
angle = (2<<16) - ratio; // 2nd octant
|
||
}
|
||
else
|
||
{if (absdx >= absdy)
|
||
angle = (8<<16) - ratio; // 8th octant
|
||
else
|
||
angle = (6<<16) + ratio; // 7th octant
|
||
}
|
||
}
|
||
else
|
||
{if (dy >= 0)
|
||
{if (absdx >= absdy)
|
||
angle = (4<<16) - ratio; // 4th octant
|
||
else
|
||
angle = (2<<16) + ratio; // 3rd octant
|
||
}
|
||
else
|
||
{if (absdx >= absdy)
|
||
angle = (4<<16) + ratio; // 5th octant
|
||
else
|
||
angle = (6<<16) - ratio; // 6th octant
|
||
}
|
||
}
|
||
|
||
return (((int)FixedMul(angle,ANGLESDIV8))&(FINEANGLES-1));
|
||
}
|
||
|
||
|
||
|
||
//******************************************************************************
|
||
//
|
||
// StringsNotEqual
|
||
//
|
||
//******************************************************************************
|
||
boolean StringsNotEqual (char * s1, char * s2, int length)
|
||
{
|
||
int i;
|
||
|
||
for (i=0;i<length;i++)
|
||
if (s1[i]!=s2[i])
|
||
return true;
|
||
return false;
|
||
}
|
||
|
||
|
||
|
||
void markgetch( void )
|
||
{
|
||
int done;
|
||
int i;
|
||
|
||
done=0;
|
||
while (done==0)
|
||
{
|
||
IN_UpdateKeyboard ();
|
||
for (i=0;i<127;i++)
|
||
if (Keyboard[i]==1)
|
||
done=i;
|
||
}
|
||
while (Keyboard[done])
|
||
IN_UpdateKeyboard ();
|
||
}
|
||
|
||
/*
|
||
====================
|
||
=
|
||
= FindEGAColors
|
||
=
|
||
====================
|
||
*/
|
||
|
||
void FindEGAColors ( void )
|
||
{
|
||
int i;
|
||
|
||
for (i=0;i<16;i++)
|
||
egacolor[i]=BestColor((int)egargb[i*3],(int)egargb[i*3+1],(int)egargb[i*3+2],origpal);
|
||
}
|
||
|
||
//===========================================================================
|
||
|
||
|
||
byte BestColor (int r, int g, int b, byte *palette)
|
||
{
|
||
int i;
|
||
long dr, dg, db;
|
||
long bestdistortion, distortion;
|
||
int bestcolor;
|
||
byte *pal;
|
||
|
||
//
|
||
// let any color go to 0 as a last resort
|
||
//
|
||
bestdistortion = ( (long)WeightR*r*r + (long)WeightG*g*g + (long)WeightB*b*b )*2;
|
||
bestcolor = 0;
|
||
|
||
pal = &palette[0];
|
||
for (i=0 ; i<= 255 ; i++,pal+=3)
|
||
{
|
||
dr = r - (int)pal[0];
|
||
dg = g - (int)pal[1];
|
||
db = b - (int)pal[2];
|
||
distortion = WeightR*dr*dr + WeightG*dg*dg + WeightB*db*db;
|
||
if (distortion < bestdistortion)
|
||
{
|
||
if (!distortion)
|
||
return i; // perfect match
|
||
|
||
bestdistortion = distortion;
|
||
bestcolor = i;
|
||
}
|
||
}
|
||
|
||
return bestcolor;
|
||
}
|
||
|
||
void ClearGraphicsScreen( void )
|
||
{
|
||
VL_ClearVideo(0);
|
||
}
|
||
|
||
void ClearBuffer( char * buf, int size )
|
||
{
|
||
memset(buf,0,size);
|
||
}
|
||
|
||
/*
|
||
=============================================================================
|
||
|
||
MISC FUNCTIONS
|
||
|
||
=============================================================================
|
||
*/
|
||
|
||
/*
|
||
=================
|
||
=
|
||
= Error
|
||
=
|
||
= For abnormal program terminations
|
||
=
|
||
=================
|
||
*/
|
||
|
||
void Error (char *error, ...)
|
||
{
|
||
char msgbuf[300];
|
||
va_list argptr;
|
||
char i;
|
||
int size;
|
||
char * sptr;
|
||
char buf[30];
|
||
int handle;
|
||
int x,y;
|
||
int level;
|
||
static int inerror = 0;
|
||
char filename[ 128 ];
|
||
|
||
|
||
inerror++;
|
||
if (inerror > 1)
|
||
abort();
|
||
|
||
|
||
SetTextMode ();
|
||
#ifdef DOS
|
||
memcpy ((byte *)0xB8000, &ROTT_ERR, 160*7);
|
||
#elif defined (ANSIESC)
|
||
DisplayTextSplash (&ROTT_ERR, 7);
|
||
#endif
|
||
memset (msgbuf, 0, 300);
|
||
|
||
#ifdef DOS
|
||
px = ERRORVERSIONCOL-1;
|
||
py = ERRORVERSIONROW;
|
||
#if (SHAREWARE == 1)
|
||
UL_printf ("S");
|
||
#else
|
||
UL_printf ("R");
|
||
#endif
|
||
|
||
px = ERRORVERSIONCOL;
|
||
py = ERRORVERSIONROW;
|
||
#if (BETA == 1)
|
||
UL_printf ("<EFBFBD>");
|
||
#else
|
||
UL_printf (itoa(ROTTMAJORVERSION,&buf[0],10));
|
||
#endif
|
||
|
||
// Skip the dot
|
||
px++;
|
||
|
||
UL_printf (itoa(ROTTMINORVERSION,&buf[0],10));
|
||
#endif
|
||
|
||
va_start (argptr, error);
|
||
vsprintf (&msgbuf[0], error, argptr);
|
||
va_end (argptr);
|
||
|
||
scriptbuffer = &msgbuf[0];
|
||
size = strlen (msgbuf);
|
||
|
||
sptr = script_p = scriptbuffer;
|
||
scriptend_p = script_p + size;
|
||
scriptline = 1;
|
||
endofscript = false;
|
||
tokenready = false;
|
||
|
||
px = ERRORCOL;
|
||
py = ERRORROW;
|
||
|
||
GetToken (true);
|
||
while (!endofscript)
|
||
{
|
||
if ((script_p - sptr) >= 60)
|
||
{
|
||
px = ERRORCOL;
|
||
py++;
|
||
sptr = script_p;
|
||
}
|
||
|
||
UL_printf (token);
|
||
px++; //SPACE
|
||
GetToken (true);
|
||
}
|
||
|
||
#ifdef ANSIESC
|
||
for (i = 0; i < 8; i++)
|
||
printf ("\n");
|
||
#endif
|
||
|
||
if (player!=NULL)
|
||
{
|
||
printf ("Player X = %lx\n", (long int)player->x);
|
||
printf ("Player Y = %lx\n", (long int)player->y);
|
||
printf ("Player Angle = %lx\n\n", (long int)player->angle);
|
||
}
|
||
printf ("Episode = %ld\n", (long int)gamestate.episode);
|
||
|
||
if (gamestate.episode > 1)
|
||
level = (gamestate.mapon+1) - ((gamestate.episode-1) << 3);
|
||
else
|
||
level = gamestate.mapon+1;
|
||
|
||
printf ("Area = %ld\n", (long int)level);
|
||
|
||
ShutDown(); // DDOI - moved this so that it doesn't try to access player
|
||
// which is freed by this function.
|
||
|
||
#ifdef DOS
|
||
GetPathFromEnvironment( filename, ApogeePath, ERRORFILE );
|
||
handle=SafeOpenAppend ( filename );
|
||
for (y=0;y<16;y++)
|
||
{
|
||
for (x=0;x<160;x+=2)
|
||
SafeWrite(handle,(byte *)0xB8000+(y*160)+x,1);
|
||
i=10;
|
||
SafeWrite(handle,&i,1);
|
||
i=13;
|
||
SafeWrite(handle,&i,1);
|
||
}
|
||
|
||
close(handle);
|
||
|
||
if ( SOUNDSETUP )
|
||
{
|
||
getch();
|
||
}
|
||
|
||
#endif
|
||
|
||
#if USE_SDL
|
||
SDL_Quit();
|
||
#endif
|
||
|
||
exit (1);
|
||
}
|
||
|
||
//#if (SOFTERROR==1)
|
||
|
||
/*
|
||
=================
|
||
=
|
||
= SoftwareError
|
||
=
|
||
=================
|
||
*/
|
||
void SoftwareError (char *error, ...)
|
||
{
|
||
va_list argptr;
|
||
|
||
if (SoftErrorStarted==false)
|
||
return;
|
||
va_start (argptr, error);
|
||
vfprintf (errout, error, argptr);
|
||
va_end (argptr);
|
||
}
|
||
|
||
//#endif
|
||
|
||
|
||
//#if (DEBUG == 1)
|
||
|
||
/*
|
||
=================
|
||
=
|
||
= DebugError
|
||
=
|
||
=================
|
||
*/
|
||
void DebugError (char *error, ...)
|
||
{
|
||
va_list argptr;
|
||
|
||
if (DebugStarted==false)
|
||
return;
|
||
va_start (argptr, error);
|
||
vfprintf (debugout, error, argptr);
|
||
va_end (argptr);
|
||
}
|
||
|
||
//#endif
|
||
|
||
/*
|
||
=================
|
||
=
|
||
= OpenSoftError
|
||
=
|
||
=================
|
||
*/
|
||
void OpenSoftError ( void )
|
||
{
|
||
errout = fopen(SOFTERRORFILE,"wt+");
|
||
SoftErrorStarted=true;
|
||
}
|
||
|
||
/*
|
||
=================
|
||
=
|
||
= MapDebug
|
||
=
|
||
=================
|
||
*/
|
||
void MapDebug (char *error, ...)
|
||
{
|
||
va_list argptr;
|
||
|
||
if (MapDebugStarted==false)
|
||
return;
|
||
va_start (argptr, error);
|
||
vfprintf (mapdebugout, error, argptr);
|
||
va_end (argptr);
|
||
}
|
||
|
||
/*
|
||
=================
|
||
=
|
||
= OpenMapDebug
|
||
=
|
||
=================
|
||
*/
|
||
void OpenMapDebug ( void )
|
||
{
|
||
char filename[ 128 ];
|
||
|
||
if (MapDebugStarted==true)
|
||
return;
|
||
GetPathFromEnvironment( filename, ApogeePath, MAPDEBUGFILE );
|
||
mapdebugout = fopen(filename,"wt+");
|
||
MapDebugStarted=true;
|
||
}
|
||
|
||
|
||
/*
|
||
=================
|
||
=
|
||
= StartupSoftError
|
||
=
|
||
=================
|
||
*/
|
||
void StartupSoftError ( void )
|
||
{
|
||
#if (DEBUG == 1)
|
||
if (DebugStarted==false)
|
||
{
|
||
debugout = fopen(DEBUGFILE,"wt+");
|
||
DebugStarted=true;
|
||
}
|
||
#endif
|
||
#if (SOFTERROR == 1)
|
||
if (SoftErrorStarted==false)
|
||
OpenSoftError();
|
||
#endif
|
||
}
|
||
|
||
/*
|
||
=================
|
||
=
|
||
= ShutdownSoftError
|
||
=
|
||
=================
|
||
*/
|
||
void ShutdownSoftError ( void )
|
||
{
|
||
if (DebugStarted==true)
|
||
{
|
||
fclose(debugout);
|
||
DebugStarted=false;
|
||
}
|
||
if (SoftErrorStarted==true)
|
||
{
|
||
fclose(errout);
|
||
SoftErrorStarted=false;
|
||
}
|
||
if (MapDebugStarted==true)
|
||
{
|
||
fclose(mapdebugout);
|
||
MapDebugStarted=false;
|
||
}
|
||
}
|
||
|
||
|
||
/*
|
||
=================
|
||
=
|
||
= CheckParm
|
||
=
|
||
= Checks for the given parameter in the program's command line arguments
|
||
=
|
||
= Returns the argument number (1 to argc-1) or 0 if not present
|
||
=
|
||
=================
|
||
*/
|
||
|
||
int CheckParm (char *check)
|
||
{
|
||
int i;
|
||
char *parm;
|
||
|
||
for (i = 1;i<_argc;i++)
|
||
{
|
||
parm = _argv[i];
|
||
if ( !isalpha(*parm) ) // skip - / \ etc.. in front of parm
|
||
{
|
||
parm++;
|
||
if (!*parm)
|
||
continue; // parm was only one char
|
||
}
|
||
|
||
if ( !_fstricmp(check,parm) )
|
||
return i;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
|
||
int SafeOpenAppend (char *_filename)
|
||
{
|
||
int handle;
|
||
char filename[MAX_PATH];
|
||
strncpy(filename, _filename, sizeof (filename));
|
||
filename[sizeof (filename) - 1] = '\0';
|
||
FixFilePath(filename);
|
||
|
||
handle = open(filename,O_RDWR | O_BINARY | O_CREAT | O_APPEND
|
||
, S_IREAD | S_IWRITE);
|
||
|
||
if (handle == -1)
|
||
Error ("Error opening for append %s: %s",filename,strerror(errno));
|
||
|
||
return handle;
|
||
}
|
||
|
||
int SafeOpenWrite (char *_filename)
|
||
{
|
||
int handle;
|
||
char filename[MAX_PATH];
|
||
strncpy(filename, _filename, sizeof (filename));
|
||
filename[sizeof (filename) - 1] = '\0';
|
||
FixFilePath(filename);
|
||
|
||
handle = open(filename,O_RDWR | O_BINARY | O_CREAT | O_TRUNC
|
||
, S_IREAD | S_IWRITE);
|
||
|
||
if (handle == -1)
|
||
Error ("Error opening %s: %s",filename,strerror(errno));
|
||
|
||
return handle;
|
||
}
|
||
|
||
int SafeOpenRead (char *_filename)
|
||
{
|
||
int handle;
|
||
char filename[MAX_PATH];
|
||
strncpy(filename, _filename, sizeof (filename));
|
||
filename[sizeof (filename) - 1] = '\0';
|
||
FixFilePath(filename);
|
||
|
||
handle = open(filename,O_RDONLY | O_BINARY);
|
||
|
||
if (handle == -1)
|
||
Error ("Error opening %s: %s",filename,strerror(errno));
|
||
|
||
return handle;
|
||
}
|
||
|
||
|
||
void SafeRead (int handle, void *buffer, long count)
|
||
{
|
||
unsigned iocount;
|
||
|
||
while (count)
|
||
{
|
||
iocount = count > 0x8000 ? 0x8000 : count;
|
||
if (read (handle,buffer,iocount) != (int)iocount)
|
||
Error ("File read failure reading %ld bytes",count);
|
||
buffer = (void *)( (byte *)buffer + iocount );
|
||
count -= iocount;
|
||
}
|
||
}
|
||
|
||
|
||
void SafeWrite (int handle, void *buffer, long count)
|
||
{
|
||
unsigned iocount;
|
||
|
||
while (count)
|
||
{
|
||
iocount = count > 0x8000 ? 0x8000 : count;
|
||
if (write (handle,buffer,iocount) != (int)iocount)
|
||
Error ("File write failure writing %ld bytes",count);
|
||
buffer = (void *)( (byte *)buffer + iocount );
|
||
count -= iocount;
|
||
}
|
||
}
|
||
|
||
void SafeWriteString (int handle, char * buffer)
|
||
{
|
||
unsigned iocount;
|
||
|
||
iocount=strlen(buffer);
|
||
if (write (handle,buffer,iocount) != (int)iocount)
|
||
Error ("File write string failure writing %s\n",buffer);
|
||
}
|
||
|
||
void *SafeMalloc (long size)
|
||
{
|
||
void *ptr;
|
||
|
||
if (zonememorystarted==false)
|
||
Error("Called SafeMalloc without starting zone memory\n");
|
||
ptr = Z_Malloc (size,PU_STATIC,NULL);
|
||
|
||
if (!ptr)
|
||
Error ("SafeMalloc failure for %lu bytes",size);
|
||
|
||
return ptr;
|
||
}
|
||
|
||
void *SafeLevelMalloc (long size)
|
||
{
|
||
void *ptr;
|
||
|
||
if (zonememorystarted==false)
|
||
Error("Called SafeLevelMalloc without starting zone memory\n");
|
||
ptr = Z_LevelMalloc (size,PU_STATIC,NULL);
|
||
|
||
if (!ptr)
|
||
Error ("SafeLevelMalloc failure for %lu bytes",size);
|
||
|
||
return ptr;
|
||
}
|
||
|
||
void SafeFree (void * ptr)
|
||
{
|
||
if ( ptr == NULL )
|
||
Error ("SafeFree : Tried to free a freed pointer\n");
|
||
|
||
Z_Free (ptr);
|
||
}
|
||
|
||
/*
|
||
==============
|
||
=
|
||
= LoadFile
|
||
=
|
||
==============
|
||
*/
|
||
|
||
long LoadFile (char *filename, void **bufferptr)
|
||
{
|
||
int handle;
|
||
long length;
|
||
|
||
handle = SafeOpenRead (filename);
|
||
length = filelength (handle);
|
||
*bufferptr = SafeMalloc (length);
|
||
SafeRead (handle,*bufferptr, length);
|
||
close (handle);
|
||
return length;
|
||
}
|
||
|
||
|
||
/*
|
||
==============
|
||
=
|
||
= SaveFile
|
||
=
|
||
==============
|
||
*/
|
||
|
||
void SaveFile (char *filename, void *buffer, long count)
|
||
{
|
||
int handle;
|
||
|
||
handle = SafeOpenWrite (filename);
|
||
SafeWrite (handle, buffer, count);
|
||
close (handle);
|
||
}
|
||
|
||
|
||
void FixFilePath(char *filename)
|
||
{
|
||
#if PLATFORM_UNIX
|
||
char *ptr;
|
||
char *lastsep = filename;
|
||
|
||
if ((!filename) || (*filename == '\0'))
|
||
return;
|
||
|
||
if (access(filename, F_OK) == 0) /* File exists; we're good to go. */
|
||
return;
|
||
|
||
for (ptr = filename; 1; ptr++)
|
||
{
|
||
if (*ptr == '\\')
|
||
*ptr = PATH_SEP_CHAR;
|
||
|
||
if ((*ptr == PATH_SEP_CHAR) || (*ptr == '\0'))
|
||
{
|
||
char pch = *ptr;
|
||
struct dirent *dent = NULL;
|
||
DIR *dir;
|
||
|
||
if ((pch == PATH_SEP_CHAR) && (*(ptr + 1) == '\0'))
|
||
return; /* eos is pathsep; we're done. */
|
||
|
||
if (lastsep == ptr)
|
||
continue; /* absolute path; skip to next one. */
|
||
|
||
*ptr = '\0';
|
||
if (lastsep == filename) {
|
||
dir = opendir((*lastsep == PATH_SEP_CHAR) ? ROOTDIR : CURDIR);
|
||
|
||
if (*lastsep == PATH_SEP_CHAR) {
|
||
lastsep++;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
*lastsep = '\0';
|
||
dir = opendir(filename);
|
||
*lastsep = PATH_SEP_CHAR;
|
||
lastsep++;
|
||
}
|
||
|
||
if (dir == NULL)
|
||
{
|
||
*ptr = PATH_SEP_CHAR;
|
||
return; /* maybe dir doesn't exist? give up. */
|
||
}
|
||
|
||
while ((dent = readdir(dir)) != NULL)
|
||
{
|
||
if (strcasecmp(dent->d_name, lastsep) == 0)
|
||
{
|
||
/* found match; replace it. */
|
||
strcpy(lastsep, dent->d_name);
|
||
break;
|
||
}
|
||
}
|
||
|
||
closedir(dir);
|
||
*ptr = pch;
|
||
lastsep = ptr;
|
||
|
||
if (dent == NULL)
|
||
return; /* no match. oh well. */
|
||
|
||
if (pch == '\0') /* eos? */
|
||
return;
|
||
}
|
||
}
|
||
#endif
|
||
}
|
||
|
||
|
||
#if PLATFORM_DOS
|
||
/* no-op. */
|
||
|
||
#elif PLATFORM_WIN32
|
||
int _dos_findfirst(char *filename, int x, struct find_t *f)
|
||
{
|
||
long rc = _findfirst(filename, &f->data);
|
||
f->handle = rc;
|
||
if (rc != -1)
|
||
{
|
||
strncpy(f->name, f->data.name, sizeof (f->name) - 1);
|
||
f->name[sizeof (f->name) - 1] = '\0';
|
||
return(0);
|
||
}
|
||
return(1);
|
||
}
|
||
|
||
int _dos_findnext(struct find_t *f)
|
||
{
|
||
int rc = 0;
|
||
if (f->handle == -1)
|
||
return(1); /* invalid handle. */
|
||
|
||
rc = _findnext(f->handle, &f->data);
|
||
if (rc == -1)
|
||
{
|
||
_findclose(f->handle);
|
||
f->handle = -1;
|
||
return(1);
|
||
}
|
||
|
||
strncpy(f->name, f->data.name, sizeof (f->name) - 1);
|
||
f->name[sizeof (f->name) - 1] = '\0';
|
||
return(0);
|
||
}
|
||
|
||
#elif PLATFORM_UNIX
|
||
int _dos_findfirst(char *filename, int x, struct find_t *f)
|
||
{
|
||
char *ptr;
|
||
|
||
if (strlen(filename) >= sizeof (f->pattern))
|
||
return(1);
|
||
|
||
strcpy(f->pattern, filename);
|
||
FixFilePath(f->pattern);
|
||
ptr = strrchr(f->pattern, PATH_SEP_CHAR);
|
||
|
||
if (ptr == NULL)
|
||
{
|
||
ptr = filename;
|
||
f->dir = opendir(CURDIR);
|
||
}
|
||
else
|
||
{
|
||
*ptr = '\0';
|
||
f->dir = opendir(f->pattern);
|
||
memmove(f->pattern, ptr + 1, strlen(ptr + 1) + 1);
|
||
}
|
||
|
||
return(_dos_findnext(f));
|
||
}
|
||
|
||
|
||
static int check_pattern_nocase(const char *x, const char *y)
|
||
{
|
||
if ((x == NULL) || (y == NULL))
|
||
return(0); /* not a match. */
|
||
|
||
while ((*x) && (*y))
|
||
{
|
||
if (*x == '*')
|
||
Error("Unexpected wildcard!"); /* FIXME? */
|
||
|
||
else if (*x == '?')
|
||
{
|
||
if (*y == '\0')
|
||
return(0); /* anything but EOS is okay. */
|
||
}
|
||
|
||
else
|
||
{
|
||
if (toupper((int) *x) != toupper((int) *y))
|
||
return(0); /* not a match. */
|
||
}
|
||
|
||
x++;
|
||
y++;
|
||
}
|
||
|
||
return(*x == *y); /* it's a match (both should be EOS). */
|
||
}
|
||
|
||
int _dos_findnext(struct find_t *f)
|
||
{
|
||
struct dirent *dent;
|
||
|
||
if (f->dir == NULL)
|
||
return(1); /* no such dir or we're just done searching. */
|
||
|
||
while ((dent = readdir(f->dir)) != NULL)
|
||
{
|
||
if (check_pattern_nocase(f->pattern, dent->d_name))
|
||
{
|
||
if (strlen(dent->d_name) < sizeof (f->name))
|
||
{
|
||
strcpy(f->name, dent->d_name);
|
||
return(0); /* match. */
|
||
}
|
||
}
|
||
}
|
||
|
||
closedir(f->dir);
|
||
f->dir = NULL;
|
||
return(1); /* no match in whole directory. */
|
||
}
|
||
#else
|
||
#error please define for your platform.
|
||
#endif
|
||
|
||
|
||
#if !PLATFORM_DOS
|
||
void _dos_getdate(struct dosdate_t *date)
|
||
{
|
||
time_t curtime = time(NULL);
|
||
struct tm *tm;
|
||
|
||
if (date == NULL) {
|
||
return;
|
||
}
|
||
|
||
memset(date, 0, sizeof(struct dosdate_t));
|
||
|
||
if ((tm = localtime(&curtime)) != NULL) {
|
||
date->day = tm->tm_mday;
|
||
date->month = tm->tm_mon + 1;
|
||
date->year = tm->tm_year + 1900;
|
||
date->dayofweek = tm->tm_wday + 1;
|
||
}
|
||
}
|
||
#endif
|
||
|
||
|
||
void GetPathFromEnvironment( char *fullname, const char *envname, const char *filename )
|
||
{
|
||
|
||
#ifdef DOS
|
||
char *path;
|
||
path = getenv( envname );
|
||
#else
|
||
const char *path;
|
||
path = envname;
|
||
#endif
|
||
|
||
if ( path != NULL )
|
||
{
|
||
strcpy( fullname, path );
|
||
if ( fullname[ strlen( fullname ) - 1 ] != PATH_SEP_CHAR )
|
||
{
|
||
strcat( fullname, PATH_SEP_STR );
|
||
}
|
||
strcat( fullname, filename );
|
||
}
|
||
else
|
||
{
|
||
strcpy( fullname, filename );
|
||
}
|
||
|
||
FixFilePath(fullname);
|
||
}
|
||
|
||
void DefaultExtension (char *path, char *extension)
|
||
{
|
||
char *src;
|
||
//
|
||
// if path doesn't have a .EXT, append extension
|
||
// (extension should include the .)
|
||
//
|
||
src = path + strlen(path) - 1;
|
||
|
||
while (*src != PATH_SEP_CHAR && src != path)
|
||
{
|
||
if (*src == '.')
|
||
return; // it has an extension
|
||
src--;
|
||
}
|
||
|
||
strcat (path, extension);
|
||
}
|
||
|
||
void DefaultPath (char *path, char *basepath)
|
||
{
|
||
char temp[128];
|
||
|
||
if (path[0] == PATH_SEP_CHAR)
|
||
return; // absolute path location
|
||
strcpy (temp,path);
|
||
strcpy (path,basepath);
|
||
strcat (path,temp);
|
||
}
|
||
|
||
|
||
void ExtractFileBase (char *path, char *dest)
|
||
{
|
||
char *src;
|
||
int length;
|
||
|
||
src = path + strlen(path) - 1;
|
||
|
||
//
|
||
// back up until a \ or the start
|
||
//
|
||
while (src != path && *(src-1) != PATH_SEP_CHAR)
|
||
src--;
|
||
|
||
//
|
||
// copy up to eight characters
|
||
//
|
||
memset (dest,0,8);
|
||
length = 0;
|
||
while (*src && *src != '.')
|
||
{
|
||
if (++length == 9)
|
||
Error ("Filename base of %s >8 chars",path);
|
||
*dest++ = toupper(*src++);
|
||
}
|
||
}
|
||
|
||
|
||
/*
|
||
==============
|
||
=
|
||
= ParseNum / ParseHex
|
||
=
|
||
==============
|
||
*/
|
||
|
||
long ParseHex (char *hex)
|
||
{
|
||
char *str;
|
||
long num;
|
||
|
||
num = 0;
|
||
str = hex;
|
||
|
||
while (*str)
|
||
{
|
||
num <<= 4;
|
||
if (*str >= '0' && *str <= '9')
|
||
num += *str-'0';
|
||
else if (*str >= 'a' && *str <= 'f')
|
||
num += 10 + *str-'a';
|
||
else if (*str >= 'A' && *str <= 'F')
|
||
num += 10 + *str-'A';
|
||
else
|
||
Error ("Bad hex number: %s",hex);
|
||
str++;
|
||
}
|
||
|
||
return num;
|
||
}
|
||
|
||
|
||
long ParseNum (char *str)
|
||
{
|
||
if (str[0] == '$')
|
||
return ParseHex (str+1);
|
||
if (str[0] == '0' && str[1] == 'x')
|
||
return ParseHex (str+2);
|
||
return atol (str);
|
||
}
|
||
|
||
|
||
#if (BYTE_ORDER == LITTLE_ENDIAN)
|
||
#define KeepShort IntelShort
|
||
#define SwapShort MotoShort
|
||
#define KeepLong IntelLong
|
||
#define SwapLong MotoLong
|
||
#else
|
||
#define KeepShort MotoShort
|
||
#define SwapShort IntelShort
|
||
#define KeepLong MotoLong
|
||
#define SwapLong IntelLong
|
||
#endif
|
||
|
||
short SwapShort (short l)
|
||
{
|
||
byte b1,b2;
|
||
|
||
b1 = l&255;
|
||
b2 = (l>>8)&255;
|
||
|
||
return (b1<<8) + b2;
|
||
}
|
||
|
||
short KeepShort (short l)
|
||
{
|
||
return l;
|
||
}
|
||
|
||
|
||
int SwapLong (int l)
|
||
{
|
||
byte b1,b2,b3,b4;
|
||
|
||
b1 = l&255;
|
||
b2 = (l>>8)&255;
|
||
b3 = (l>>16)&255;
|
||
b4 = (l>>24)&255;
|
||
|
||
return ((int)b1<<24) + ((int)b2<<16) + ((int)b3<<8) + b4;
|
||
}
|
||
|
||
int KeepLong (int l)
|
||
{
|
||
return l;
|
||
}
|
||
|
||
|
||
#undef KeepShort
|
||
#undef KeepLong
|
||
#undef SwapShort
|
||
#undef SwapLong
|
||
|
||
void SwapIntelLong(int *l)
|
||
{
|
||
*l = IntelLong(*l);
|
||
}
|
||
|
||
void SwapIntelShort(short *s)
|
||
{
|
||
*s = IntelShort(*s);
|
||
}
|
||
|
||
void SwapIntelLongArray(int *l, int num)
|
||
{
|
||
while (num--) {
|
||
SwapIntelLong(l);
|
||
l++;
|
||
}
|
||
}
|
||
|
||
void SwapIntelShortArray(short *s, int num)
|
||
{
|
||
while (num--) {
|
||
SwapIntelShort(s);
|
||
s++;
|
||
}
|
||
}
|
||
|
||
/*
|
||
============================================================================
|
||
|
||
BASIC GRAPHICS
|
||
|
||
============================================================================
|
||
*/
|
||
|
||
/*
|
||
==============
|
||
=
|
||
= GetaPalette
|
||
=
|
||
= Return an 8 bit / color palette
|
||
=
|
||
==============
|
||
*/
|
||
|
||
void GetaPalette (byte *palette)
|
||
{
|
||
#ifdef DOS
|
||
int i;
|
||
|
||
OUTP (PEL_READ_ADR,0);
|
||
for (i=0 ; i<768 ; i++)
|
||
palette[i] = inp (PEL_DATA)<<2;
|
||
#else
|
||
int i;
|
||
SDL_Palette *pal = SDL_GetVideoSurface()->format->palette;
|
||
|
||
for (i = 0; i < 256; i++) {
|
||
palette[0] = pal->colors[i].r;
|
||
palette[1] = pal->colors[i].g;
|
||
palette[2] = pal->colors[i].b;
|
||
|
||
palette += 3;
|
||
}
|
||
#endif
|
||
}
|
||
|
||
/*
|
||
==============
|
||
=
|
||
= SetaPalette
|
||
=
|
||
= Sets an 8 bit / color palette
|
||
=
|
||
==============
|
||
*/
|
||
|
||
void SetaPalette (byte *pal)
|
||
{
|
||
#ifdef DOS
|
||
int i;
|
||
|
||
OUTP (PEL_WRITE_ADR,0);
|
||
for (i=0 ; i<768 ; i++)
|
||
OUTP (PEL_DATA, pal[i]>>2);
|
||
#else
|
||
SDL_Color cmap[256];
|
||
int i;
|
||
|
||
for (i = 0; i < 256; i++)
|
||
{
|
||
cmap[i].r = pal[i*3+0];
|
||
cmap[i].g = pal[i*3+1];
|
||
cmap[i].b = pal[i*3+2];
|
||
}
|
||
|
||
SDL_SetColors (SDL_GetVideoSurface (), cmap, 0, 256);
|
||
#endif
|
||
}
|
||
|
||
void GetPalette(char * palette)
|
||
{
|
||
#ifdef DOS
|
||
int i;
|
||
|
||
OUTP(0x03c7,0);
|
||
for (i=0;i<256*3;i++)
|
||
*(palette+(unsigned char)i)=inp(0x3c9)<<2;
|
||
#else
|
||
int i;
|
||
SDL_Palette *pal = SDL_GetVideoSurface()->format->palette;
|
||
|
||
for (i = 0; i < 256; i++) {
|
||
palette[0] = pal->colors[i].r;
|
||
palette[1] = pal->colors[i].g;
|
||
palette[2] = pal->colors[i].b;
|
||
|
||
palette += 3;
|
||
}
|
||
#endif
|
||
}
|
||
|
||
void SetPalette ( char * pal )
|
||
{
|
||
VL_SetPalette (pal);
|
||
}
|
||
|
||
|
||
|
||
//******************************************************************************
|
||
//
|
||
// US_CheckParm() - checks to see if a string matches one of a set of
|
||
// strings. The check is case insensitive. The routine returns the
|
||
// index of the string that matched, or -1 if no matches were found
|
||
//
|
||
//******************************************************************************
|
||
|
||
int US_CheckParm (char *parm, char **strings)
|
||
{
|
||
char cp,cs,
|
||
*p,*s;
|
||
int i;
|
||
int length;
|
||
|
||
length=strlen(parm);
|
||
while ( (!isalpha(*parm)) && (length>0)) // Skip non-alphas
|
||
{
|
||
length--;
|
||
parm++;
|
||
}
|
||
|
||
for (i = 0;*strings && **strings;i++)
|
||
{
|
||
for (s = *strings++,p = parm,cs = cp = 0;cs == cp;)
|
||
{
|
||
cs = *s++;
|
||
if (!cs)
|
||
return(i);
|
||
cp = *p++;
|
||
|
||
if (isupper(cs))
|
||
cs = tolower(cs);
|
||
if (isupper(cp))
|
||
cp = tolower(cp);
|
||
}
|
||
}
|
||
return(-1);
|
||
}
|
||
|
||
/*
|
||
=============================================================================
|
||
|
||
PALETTE OPS
|
||
|
||
To avoid snow, do a WaitVBL BEFORE calling these
|
||
|
||
=============================================================================
|
||
*/
|
||
|
||
|
||
/*
|
||
=================
|
||
=
|
||
= VL_FillPalette
|
||
=
|
||
=================
|
||
*/
|
||
|
||
void VL_FillPalette (int red, int green, int blue)
|
||
{
|
||
#ifdef DOS
|
||
int i;
|
||
|
||
OUTP (PEL_WRITE_ADR,0);
|
||
for (i=0;i<256;i++)
|
||
{
|
||
OUTP (PEL_DATA,red);
|
||
OUTP (PEL_DATA,green);
|
||
OUTP (PEL_DATA,blue);
|
||
}
|
||
#else
|
||
SDL_Color cmap[256];
|
||
int i;
|
||
|
||
for (i = 0; i < 256; i++)
|
||
{
|
||
cmap[i].r = red << 2;
|
||
cmap[i].g = green << 2;
|
||
cmap[i].b = blue << 2;
|
||
}
|
||
|
||
SDL_SetColors (SDL_GetVideoSurface (), cmap, 0, 256);
|
||
#endif
|
||
}
|
||
|
||
//===========================================================================
|
||
|
||
/*
|
||
=================
|
||
=
|
||
= VL_SetColor
|
||
=
|
||
=================
|
||
*/
|
||
|
||
void VL_SetColor (int color, int red, int green, int blue)
|
||
{
|
||
#ifdef DOS
|
||
OUTP (PEL_WRITE_ADR,color);
|
||
OUTP (PEL_DATA,red);
|
||
OUTP (PEL_DATA,green);
|
||
OUTP (PEL_DATA,blue);
|
||
#else
|
||
STUB_FUNCTION;
|
||
#endif
|
||
}
|
||
|
||
//===========================================================================
|
||
|
||
/*
|
||
=================
|
||
=
|
||
= VL_GetColor
|
||
=
|
||
=================
|
||
*/
|
||
|
||
void VL_GetColor (int color, int *red, int *green, int *blue)
|
||
{
|
||
#ifdef DOS
|
||
OUTP (PEL_READ_ADR,color);
|
||
*red = inp (PEL_DATA);
|
||
*green = inp (PEL_DATA);
|
||
*blue = inp (PEL_DATA);
|
||
#else
|
||
STUB_FUNCTION;
|
||
#endif
|
||
}
|
||
|
||
//===========================================================================
|
||
|
||
/*
|
||
=================
|
||
=
|
||
= VL_NormalizePalette
|
||
=
|
||
=================
|
||
*/
|
||
|
||
void VL_NormalizePalette (byte *palette)
|
||
{
|
||
int i;
|
||
|
||
for (i = 0; i < 768; i++)
|
||
*(palette+i)=(*(palette+i))>>2;
|
||
}
|
||
|
||
|
||
/*
|
||
=================
|
||
=
|
||
= VL_SetPalette
|
||
=
|
||
= If fast palette setting has been tested for, it is used
|
||
= -some cards don't like outsb palette setting-
|
||
=
|
||
=================
|
||
*/
|
||
|
||
void VL_SetPalette (byte *palette)
|
||
{
|
||
#ifdef DOS
|
||
int i;
|
||
|
||
OUTP (PEL_WRITE_ADR, 0);
|
||
|
||
for (i = 0; i < 768; i++)
|
||
{
|
||
OUTP (PEL_DATA, gammatable[(gammaindex<<6)+(*palette++)]);
|
||
}
|
||
#else
|
||
SDL_Color cmap[256];
|
||
int i;
|
||
|
||
for (i = 0; i < 256; i++)
|
||
{
|
||
cmap[i].r = gammatable[(gammaindex<<6)+(*palette++)] << 2;
|
||
cmap[i].g = gammatable[(gammaindex<<6)+(*palette++)] << 2;
|
||
cmap[i].b = gammatable[(gammaindex<<6)+(*palette++)] << 2;
|
||
}
|
||
|
||
SDL_SetColors (SDL_GetVideoSurface (), cmap, 0, 256);
|
||
#endif
|
||
}
|
||
|
||
|
||
//===========================================================================
|
||
|
||
/*
|
||
=================
|
||
=
|
||
= VL_GetPalette
|
||
=
|
||
= This does not use the port string instructions,
|
||
= due to some incompatabilities
|
||
=
|
||
=================
|
||
*/
|
||
|
||
void VL_GetPalette (byte *palette)
|
||
{
|
||
#ifdef DOS
|
||
int i;
|
||
|
||
OUTP (PEL_READ_ADR, 0);
|
||
|
||
for (i = 0; i < 768; i++)
|
||
*palette++ = inp (PEL_DATA);
|
||
#else
|
||
int i;
|
||
SDL_Palette *pal = SDL_GetVideoSurface()->format->palette;
|
||
|
||
for (i = 0; i < 256; i++) {
|
||
palette[0] = pal->colors[i].r >> 2;
|
||
palette[1] = pal->colors[i].g >> 2;
|
||
palette[2] = pal->colors[i].b >> 2;
|
||
|
||
palette += 3;
|
||
}
|
||
#endif
|
||
}
|
||
|
||
|
||
/*
|
||
=================
|
||
=
|
||
= UL_DisplayMemoryError ()
|
||
=
|
||
=================
|
||
*/
|
||
|
||
void UL_DisplayMemoryError ( int memneeded )
|
||
{
|
||
#ifdef DOS
|
||
char buf[4000];
|
||
int i;
|
||
|
||
ShutDown ();
|
||
TextMode ();
|
||
|
||
for (i = 0; i < 19; i++)
|
||
printf ("\n");
|
||
|
||
memcpy (buf, &ROTT_ERR, 4000);
|
||
memcpy ((byte *)0xB8000, &buf[160*7], 4000-(160*7));
|
||
|
||
px = ERRORVERSIONCOL;
|
||
py = ERRORVERSIONROW;
|
||
#if (BETA == 1)
|
||
UL_printf ("<EFBFBD>");
|
||
#else
|
||
UL_printf (itoa(ROTTMAJORVERSION,&buf[0],10));
|
||
#endif
|
||
px++;
|
||
|
||
UL_printf (itoa(ROTTMINORVERSION,&buf[0],10));
|
||
|
||
px = LOWMEMORYCOL;
|
||
py = LOWMEMORYROW;
|
||
UL_printf ("You need ");
|
||
UL_printf (itoa(memneeded,&buf[0],10));
|
||
UL_printf (" bytes more memory");
|
||
if ( SOUNDSETUP )
|
||
{
|
||
getch();
|
||
}
|
||
#else
|
||
STUB_FUNCTION;
|
||
#endif
|
||
exit (0);
|
||
}
|
||
|
||
|
||
/*
|
||
=================
|
||
=
|
||
= UL_printf
|
||
=
|
||
=================
|
||
*/
|
||
|
||
void UL_printf (byte *str)
|
||
{
|
||
#ifdef DOS
|
||
byte *s;
|
||
byte *screen;
|
||
|
||
s = str;
|
||
screen = (byte *)(0xB8000 + (py*160) + (px<<1));
|
||
|
||
while (*s)
|
||
{
|
||
*screen = *s;
|
||
s++;
|
||
screen += 2;
|
||
px++;
|
||
|
||
if ((*s < 32) && (*s > 0))
|
||
s++;
|
||
}
|
||
#else
|
||
#ifdef ANSIESC
|
||
printf ("\x1b[%d;%dH%s",py,px,str);
|
||
#else
|
||
printf ("%s ",str); // Hackish but works - DDOI
|
||
#endif
|
||
#endif
|
||
}
|
||
|
||
/*
|
||
=================
|
||
=
|
||
= UL_ColorBox
|
||
=
|
||
=================
|
||
*/
|
||
|
||
void UL_ColorBox (int x, int y, int w, int h, int color)
|
||
{
|
||
#ifdef DOS
|
||
byte *screen;
|
||
int i,j;
|
||
|
||
|
||
for (j=0;j<h;j++)
|
||
{
|
||
screen = (byte *)(0xB8000 + ((y+j)*160) + (x<<1) + 1);
|
||
for (i=0;i<w;i++)
|
||
{
|
||
*screen = (byte)color;
|
||
screen+=2;
|
||
}
|
||
}
|
||
#elif defined (ANSIESC)
|
||
int i,j;
|
||
|
||
|
||
for (j=0;j<h;j++)
|
||
{
|
||
for (i=0;i<w;i++)
|
||
{
|
||
printf ("\x1b[%d;%dH",y+j,x+i);
|
||
put_dos2ansi(color);
|
||
}
|
||
}
|
||
#endif
|
||
}
|
||
|
||
//******************************************************************************
|
||
//
|
||
// SideOfLine
|
||
//
|
||
//******************************************************************************
|
||
|
||
int SideOfLine(int x1, int y1, int x2, int y2, int x3, int y3)
|
||
{
|
||
int a1,b1,c1;
|
||
|
||
/* Compute a1, b1, c1, where line joining points 1 and 2
|
||
* is "a1 x + b1 y + c1 = 0".
|
||
*/
|
||
|
||
a1 = y2 - y1;
|
||
b1 = x1 - x2;
|
||
c1 = FixedMulShift(x2,y1,16) - FixedMulShift(x1,y2,16);
|
||
|
||
return SGN(FixedMulShift(a1,x3,16) + FixedMulShift(b1,y3,16) + c1);
|
||
}
|
||
|
||
|
||
|
||
//******************************************************************************
|
||
//
|
||
// HSORT - heap sort
|
||
//
|
||
//******************************************************************************
|
||
|
||
typedef int (*PFI)(); /* pointer to a function returning int */
|
||
typedef void (*PFV)(); /* pointer to a function returning int */
|
||
static PFI Comp; /* pointer to comparison routine */
|
||
static PFV Switch; /* pointer to comparison routine */
|
||
static int Width; /* width of an object in bytes */
|
||
static char *Base; /* pointer to element [-1] of array */
|
||
|
||
|
||
static void newsift_down(L,U) int L,U;
|
||
{ int c;
|
||
|
||
while(1)
|
||
{c=L+L;
|
||
if(c>U) break;
|
||
if( (c+Width <= U) && ((*Comp)(Base+c+Width,Base+c)>0) ) c+= Width;
|
||
if ((*Comp)(Base+L,Base+c)>=0) break;
|
||
(*Switch)(Base+L, Base+c);
|
||
L=c;
|
||
}
|
||
}
|
||
|
||
void hsort(char * base, int nel, int width, int (*compare)(), void (*switcher)())
|
||
{
|
||
static int i,n,stop;
|
||
/* Perform a heap sort on an array starting at base. The array is
|
||
nel elements large and width is the size of a single element in
|
||
bytes. Compare is a pointer to a comparison routine which will
|
||
be passed pointers to two elements of the array. It should
|
||
return a negative number if the left-most argument is less than
|
||
the rightmost, 0 if the two arguments are equal, a positive
|
||
number if the left argument is greater than the right. (That
|
||
is, it acts like a "subtract" operator.) If compare is 0 then
|
||
the default comparison routine, argvcmp (which sorts an
|
||
argv-like array of pointers to strings), is used. */
|
||
|
||
Width=width;
|
||
Comp= compare;
|
||
Switch= switcher;
|
||
n=nel*Width;
|
||
Base=base-Width;
|
||
for (i=(n/Width/2)*Width; i>=Width; i-=Width) newsift_down(i,n);
|
||
stop=Width+Width;
|
||
for (i=n; i>=stop; )
|
||
{
|
||
(*Switch)(base, Base+i);
|
||
newsift_down(Width,i-=Width);
|
||
}
|
||
|
||
}
|
||
|
||
/*---------------------------------------------------------------------------*/
|
||
|
||
//******************************************************************************
|
||
//
|
||
// UL_GetPath
|
||
//
|
||
// Purpose
|
||
// To parse the directory entered by the user to make the directory.
|
||
//
|
||
// Parms
|
||
// Path - the path to be parsed.
|
||
//
|
||
// Returns
|
||
// Pointer to next path
|
||
//
|
||
//******************************************************************************
|
||
|
||
char * UL_GetPath (char * path, char *dir)
|
||
{
|
||
boolean done = 0;
|
||
char *dr = dir;
|
||
int cnt = 0;
|
||
|
||
if (*path == SLASHES)
|
||
path++;
|
||
|
||
while (!done)
|
||
{
|
||
*dr = *path;
|
||
|
||
cnt++; // make sure the number of characters in the dir
|
||
if (cnt > MAXCHARS) // name doesn't exceed acceptable limits.
|
||
Error ("ERROR : Directory name can only be %d characters long.\n", MAXCHARS);
|
||
|
||
path++;
|
||
dr++;
|
||
|
||
if ((*path == SLASHES) || (*path == 0))
|
||
done = true;
|
||
}
|
||
|
||
*dr = 0;
|
||
return (path);
|
||
}
|
||
|
||
|
||
//******************************************************************************
|
||
//
|
||
// UL_ChangeDirectory ()
|
||
//
|
||
// Purpose
|
||
// To change to a directory. Checks for drive changes.
|
||
//
|
||
// Parms
|
||
// path - The path to change to.
|
||
//
|
||
// Returns
|
||
// TRUE - If successful.
|
||
// FALSE - If unsuccessful.
|
||
//
|
||
//******************************************************************************
|
||
|
||
boolean UL_ChangeDirectory (char *path)
|
||
{
|
||
#ifdef DOS
|
||
char *p;
|
||
char dir[9];
|
||
char *d;
|
||
|
||
d = &dir[0];
|
||
p = path;
|
||
memset (dir, 0, 9);
|
||
|
||
// Check for a drive at the beginning of the path
|
||
if (*(p+1) == ':')
|
||
{
|
||
*d++ = *p++; // drive letter
|
||
*d++ = *p++; // colon
|
||
|
||
if (UL_ChangeDrive (dir) == false)
|
||
return (false);
|
||
}
|
||
|
||
if (*p == SLASHES)
|
||
{
|
||
chdir ("\\");
|
||
p++;
|
||
}
|
||
|
||
d = &dir[0];
|
||
while (*p)
|
||
{
|
||
p = UL_GetPath (p, d);
|
||
|
||
if (chdir (d) == -1)
|
||
return (false);
|
||
}
|
||
|
||
return (true);
|
||
#else
|
||
if (!*path) {
|
||
return true;
|
||
}
|
||
|
||
if (chdir (path) == -1) {
|
||
return (false);
|
||
}
|
||
|
||
return true;
|
||
#endif
|
||
}
|
||
|
||
|
||
|
||
//******************************************************************************
|
||
//
|
||
// UL_ChangeDrive ()
|
||
//
|
||
// Purpose
|
||
// To change drives.
|
||
//
|
||
// Parms
|
||
// drive - The drive to change to.
|
||
//
|
||
// Returns
|
||
// TRUE - If drive change successful.
|
||
// FALSE - If drive change unsuccessful.
|
||
//
|
||
//******************************************************************************
|
||
|
||
boolean UL_ChangeDrive (char *drive)
|
||
{
|
||
#ifdef DOS
|
||
unsigned d, total, tempd;
|
||
|
||
d = toupper (*drive);
|
||
|
||
d = d - 'A' + 1;
|
||
|
||
_dos_setdrive (d, &total);
|
||
_dos_getdrive (&tempd);
|
||
|
||
if (d != tempd)
|
||
return (false);
|
||
|
||
return (true);
|
||
#else
|
||
STUB_FUNCTION;
|
||
|
||
return false;
|
||
#endif
|
||
}
|
||
|
||
|
||
/*
|
||
=============
|
||
=
|
||
= AbortCheck
|
||
=
|
||
=============
|
||
*/
|
||
void AbortCheck (char * abortstring)
|
||
{
|
||
// User abort check
|
||
|
||
IN_UpdateKeyboard ();
|
||
|
||
if (Keyboard[sc_Escape])
|
||
Error("%s\n",abortstring);
|
||
}
|