Installation for Merc
---------------------

1. In your Makefile, below the main list of L_FLAGS,
   include the following:

#IMC2 - Comment out to disable IMC2 support
IMC = 1

   Then directly below the list of O_FILES, add the following:
   [Note: BSD users - put a period in front of the word ifdef, and in front of the word endif]

ifdef IMC
   O_FILES := imc.o $(O_FILES)
   C_FLAGS := $(C_FLAGS) -DIMC -DIMCMERC
endif

2. Open merc.h and locate the following code:

#define PULSE_PER_SECOND	    4
#define PULSE_VIOLENCE		  ( 3 * PULSE_PER_SECOND)
#define PULSE_MOBILE		  ( 4 * PULSE_PER_SECOND)
#define PULSE_TICK		  (30 * PULSE_PER_SECOND)
#define PULSE_AREA		  (60 * PULSE_PER_SECOND)

   Directly below that, add the following:

#ifdef IMC
   #include "imc.h"
#endif

   Locate your pc_data struct

   Add the following to the end of it:

#ifdef IMC
    IMC_CHARDATA *imcchardata;
#endif

3. Open interp.c and locate the following section:

if ( !check_social( ch, command, argument )

   Add the following condition to whatever series of ifchecks exist there:

#ifdef IMC
	&&   !imc_command_hook( ch, command, argument )
#endif

4. Open comm.c and locate the following in main() :

#if defined(unix)
    control = init_socket( port );
    boot_db( );
    sprintf( log_buf, "Merc is ready to rock on port %d.", port );
    log_string( log_buf );

   Add the following beneath that:

#ifdef IMC
    imc_startup( FALSE ); // FALSE arg, so the autoconnect setting can govern it.
#endif

   Then further down in main(), locate the following:

    while ( descriptor_list )
	close_socket( descriptor_list );

   Add the following beneath that:

#ifdef IMC
   imc_shutdown( FALSE );
#endif

   Then in game_loop(), locate the following:

	/*
	 * Autonomous game motion.
	 */
	update_handler( );

   Directly ABOVE that, add the following:

#ifdef IMC
	imc_loop();
#endif

5. Open save.c and locate fread_char:

   Find:

	case 'L':
	    KEY( "Level",	ch->level,		fread_number( fp ) );
	    KEY( "LongDescr",	ch->long_descr,		fread_string( fp ) );
	    break;

   *ABOVE* that, add:

      case 'I':
#ifdef IMC
	 if( ( fMatch = imc_loadchar( ch, fp, word ) ) )
            break;
#endif
         break;

   Then in fwrite_char, locate:

    fprintf( fp, "End\n\n" );

   Directly ABOVE that, add:

#ifdef IMC
    imc_savechar( ch, fp );
#endif

   Then in load_char_obj(), locate the following:

    found = FALSE;
    fclose( fpReserve );

    /* parsed player file directories by Yaz of 4th Realm */
    /* decompress if .gz file exists - Thx Alander */

   Directly ABOVE that, add the following:

#ifdef IMC
    imc_initchar( ch );
#endif

6. Open db.c

   Locate free_char:

   Under the following block of code:

	free_string( ch->pcdata->pwd		);
	free_string( ch->pcdata->bamfin		);
	free_string( ch->pcdata->bamfout	);
	free_string( ch->pcdata->title		);

   Add:

#ifdef IMC
	imc_freechardata( ch );
#endif

7. For users of copyover/hotboot ONLY:

   Locate do_copyover, and just before the buffers for the execl call are
   allocated, add the following:

#ifdef IMC
   imc_shutdown( FALSE );
#endif

7b. Envy 2.2 ONLY:

Go back to save.c, and locate the following in fread_char:

        else
        {
            sprintf( buf, "fread_char: Unknown key '%s' in pfile.", word );
            bug( buf, 0 );
            fread_to_eol( fp );
        }

   Directly ABOVE that, add:

#ifdef IMC
      else if( imc_loadchar( ch, fp, word ) )
	   ;
#endif

7c. NiMud 4 ONLY:

For the db.c section, apply the changes to free_char in mem.c

In imc.c, under the #ifdef IMCMERC section near the top, change:

#include "merc.h"

To:

#include "mud.h"

7d. EOS2 ONLY:

In imc.c, function imclog, find:

   log_string( buf );

Replace with:

   log_string( buf, CHANNEL_LOG, -1 );

Return to the main IMC.txt file and continue where you left off.