The source for the DOOM serial / model driver.

Author: Travis Bradshaw

sersrc/DOOMNET.C

@@ -0,0 +1,126 @@
+#include <stdio.h>
+#include <io.h>
+#include <stdlib.h>
+#include <string.h>
+#include <process.h>
+#include <dos.h>
+#include "doomnet.h"
+
+//#include "serstr.h"
+#include "ser_frch.h"		// FRENCH VERSION
+
+#define DOOM2
+
+extern	int	myargc;
+extern	char **myargv;
+
+doomcom_t	doomcom;
+int			vectorishooked;
+void interrupt (*olddoomvect) (void);
+
+
+
+/*
+=================
+=
+= 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;
+
+	for (i = 1;i<myargc;i++)
+		if ( !stricmp(check,myargv[i]) )
+			return i;
+
+	return 0;
+}
+
+
+/*
+=============
+=
+= LaunchDOOM
+=
+These fields in doomcom should be filled in before calling:
+
+	short	numnodes;		// console is allways node 0
+	short	ticdup;			// 1 = no duplication, 2-5 = dup for slow nets
+	short	extratics;		// 1 = send a backup tic in every packet
+
+	short	consoleplayer;	// 0-3 = player number
+	short	numplayers;		// 1-4
+	short	angleoffset;	// 1 = left, 0 = center, -1 = right
+	short	drone;			// 1 = drone
+=============
+*/
+
+void LaunchDOOM (void)
+{
+	char	*newargs[99];
+	char	adrstring[10];
+	long  	flatadr;
+	int		p;
+	unsigned char	far	*vector;
+
+// prepare for DOOM
+	doomcom.id = DOOMCOM_ID;
+
+// hook an interrupt vector
+	p= CheckParm ("-vector");
+
+	if (p)
+	{
+		doomcom.intnum = sscanf ("0x%x",_argv[p+1]);
+	}
+	else
+	{
+		for (doomcom.intnum = 0x60 ; doomcom.intnum <= 0x66 ; doomcom.intnum++)
+		{
+			vector = *(char far * far *)(doomcom.intnum*4);
+			if ( !vector || *vector == 0xcf )
+				break;
+		}
+		if (doomcom.intnum == 0x67)
+		{
+			printf (STR_WARNING);
+			doomcom.intnum = 0x66;
+		}
+	}
+	printf (STR_COMM"\n",doomcom.intnum);
+
+	olddoomvect = getvect (doomcom.intnum);
+	setvect (doomcom.intnum,NetISR);
+	vectorishooked = 1;
+
+// build the argument list for DOOM, adding a -net &doomcom
+	memcpy (newargs, myargv, (myargc+1)*2);
+	newargs[myargc] = "-net";
+	flatadr = (long)_DS*16 + (unsigned)&doomcom;
+	sprintf (adrstring,"%lu",flatadr);
+	newargs[myargc+1] = adrstring;
+	newargs[myargc+2] = NULL;
+
+//	spawnv  (P_WAIT, "m:\\newdoom\\doom", newargs);
+	if (!access("doom2.exe",0))
+		spawnv  (P_WAIT, "doom2", newargs);
+	else
+		spawnv  (P_WAIT, "doom", newargs);
+
+	#ifdef DOOM2
+	printf (STR_RETURNED"\n");
+	#else
+	printf ("Returned from DOOM\n");
+	#endif
+
+
+}
+
+

sersrc/DOOMNET.H

@@ -0,0 +1,60 @@
+// doomnet.h
+
+
+#define PEL_WRITE_ADR   0x3c8
+#define PEL_DATA        0x3c9
+
+#define I_ColorBlack(r,g,b) {outp(PEL_WRITE_ADR,0);outp(PEL_DATA,r);outp(PEL_DATA,g);outp(PEL_DATA,b);};
+
+
+
+
+#define	MAXNETNODES		8			// max computers in a game
+#define	MAXPLAYERS		4			// 4 players max + drones
+
+
+#define	CMD_SEND	1
+#define	CMD_GET		2
+
+#define	DOOMCOM_ID		0x12345678l
+
+typedef struct
+{
+	long	id;
+	short	intnum;			// DOOM executes an int to send commands
+
+// communication between DOOM and the driver
+	short	command;		// CMD_SEND or CMD_GET
+	short	remotenode;		// dest for send, set by get (-1 = no packet)
+	short	datalength;		// bytes in doomdata to be sent / bytes read
+
+// info common to all nodes
+	short	numnodes;		// console is allways node 0
+	short	ticdup;			// 1 = no duplication, 2-5 = dup for slow nets
+	short	extratics;		// 1 = send a backup tic in every packet
+	short	deathmatch;		// 1 = deathmatch
+	short	savegame;		// -1 = new game, 0-5 = load savegame
+	short	episode;		// 1-3
+	short	map;			// 1-9
+	short	skill;			// 1-5
+
+// info specific to this node
+	short	consoleplayer;	// 0-3 = player number
+	short	numplayers;		// 1-4
+	short	angleoffset;	// 1 = left, 0 = center, -1 = right
+	short	drone;			// 1 = drone
+
+// packet data to be sent
+	char	data[512];
+} doomcom_t;
+
+
+
+extern	doomcom_t	doomcom;
+extern	void interrupt (*olddoomvect) (void);
+extern	int			vectorishooked;
+
+int CheckParm (char *check);
+void LaunchDOOM (void);
+void interrupt NetISR (void);
+