Let some cheat commands work online

noclip
god
scale
gravflip
hurtme

src/command.c

@@ -37,6 +37,7 @@
 #include "r_data.h" // Color_cons_t
 #include "r_skins.h"
 #include "m_random.h"
+#include "p_local.h" // P_ResetPlayerCheats
 
 //========
 // protos.

src/d_netcmd.c

@@ -96,6 +96,7 @@ static void Got_DiscordInfo(UINT8 **cp, INT32 playernum);
 static void Got_ScheduleTaskcmd(UINT8 **cp, INT32 playernum);
 static void Got_ScheduleClearcmd(UINT8 **cp, INT32 playernum);
 static void Got_Automatecmd(UINT8 **cp, INT32 playernum);
+static void Got_Cheat(UINT8 **cp, INT32 playernum);
 
 static void PointLimit_OnChange(void);
 static void TimeLimit_OnChange(void);
@@ -625,7 +626,8 @@ const char *netxcmdnames[MAXNETXCMD - 1] =
 	"PLAYSOUND", // XD_PLAYSOUND
 	"SCHEDULETASK", // XD_SCHEDULETASK
 	"SCHEDULECLEAR", // XD_SCHEDULECLEAR
-	"AUTOMATE" // XD_AUTOMATE
+	"AUTOMATE", // XD_AUTOMATE
+	"CHEAT", // XD_CHEAT
 };
 
 // =========================================================================
@@ -678,6 +680,8 @@ void D_RegisterServerCommands(void)
 	RegisterNetXCmd(XD_SCHEDULECLEAR, Got_ScheduleClearcmd);
 	RegisterNetXCmd(XD_AUTOMATE, Got_Automatecmd);
 
+	RegisterNetXCmd(XD_CHEAT, Got_Cheat);
+
 	// Remote Administration
 	COM_AddCommand("password", Command_Changepassword_f);
 	COM_AddCommand("login", Command_Login_f); // useful in dedicated to kick off remote admin
@@ -1970,6 +1974,42 @@ void D_SendPlayerConfig(UINT8 n)
 	SendNetXCmdForPlayer(n, XD_POWERLEVEL, buf, p-buf);
 }
 
+void D_Cheat(INT32 playernum, INT32 cheat, ...)
+{
+	va_list ap;
+
+	UINT8 buf[64];
+	UINT8 *p = buf;
+
+	if (!CV_CheatsEnabled())
+	{
+		CONS_Printf("This cannot be used without cheats enabled.\n");
+		return;
+	}
+
+	WRITEUINT8(p, playernum);
+	WRITEUINT8(p, cheat);
+
+	va_start(ap, cheat);
+#define COPY(writemacro, type) writemacro (p, va_arg(ap, type))
+
+	switch (cheat)
+	{
+		case CHEAT_SCALE:
+			COPY(WRITEFIXED, fixed_t);
+			break;
+
+		case CHEAT_HURT:
+			COPY(WRITEINT32, INT32);
+			break;
+	}
+
+#undef COPY
+	va_end(ap);
+
+	SendNetXCmd(XD_CHEAT, buf, p - buf);
+}
+
 // Only works for displayplayer, sorry!
 static void Command_ResetCamera_f(void)
 {
@@ -5409,6 +5449,98 @@ static void Got_Automatecmd(UINT8 **cp, INT32 playernum)
 	}
 }
 
+static void Got_Cheat(UINT8 **cp, INT32 playernum)
+{
+	UINT8 targetPlayer = READUINT8(*cp);
+	cheat_t cheat = READUINT8(*cp);
+
+	player_t *player;
+
+	if (cheat >= NUMBER_OF_CHEATS || !CV_CheatsEnabled() || targetPlayer >= MAXPLAYERS ||
+			playernode[targetPlayer] != playernode[playernum])
+	{
+		CONS_Alert(CONS_WARNING,
+				M_GetText ("Illegal cheat command received from %s\n"),
+				player_names[playernum]);
+		return;
+	}
+
+	player = &players[targetPlayer];
+
+	switch (cheat)
+	{
+		case CHEAT_NOCLIP: {
+			const char *status = "on";
+
+			if (!P_MobjWasRemoved(player->mo))
+			{
+				player->mo->flags ^= MF_NOCLIP;
+
+				if (!(player->mo->flags & MF_NOCLIP))
+				{
+					status = "off";
+				}
+			}
+
+			CV_CheaterWarning(targetPlayer, va("noclip %s", status));
+			break;
+		}
+
+		case CHEAT_GOD: {
+			const char *status = (player->pflags & PF_GODMODE) ? "off" : "on";
+
+			player->pflags ^= PF_GODMODE;
+
+			CV_CheaterWarning(targetPlayer, va("GOD MODE %s", status));
+			break;
+		}
+
+		case CHEAT_SCALE: {
+			const fixed_t smin = FRACUNIT/100;
+			const fixed_t smax = 100*FRACUNIT;
+
+			fixed_t s = READFIXED(*cp);
+			float f;
+
+			s = min(max(smin, s), smax);
+			f = FIXED_TO_FLOAT(s);
+
+			if (!P_MobjWasRemoved(player->mo))
+			{
+				player->mo->destscale = s;
+			}
+
+			CV_CheaterWarning(targetPlayer, va("scale = %d%s", (int)f, M_Ftrim(FIXED_TO_FLOAT(s))));
+			break;
+		}
+
+		case CHEAT_FLIP: {
+			if (!P_MobjWasRemoved(player->mo))
+			{
+				player->mo->flags2 ^= MF2_OBJECTFLIP;
+			}
+
+			CV_CheaterWarning(targetPlayer, "invert gravity");
+			break;
+		}
+
+		case CHEAT_HURT: {
+			INT32 damage = READINT32(*cp);
+
+			if (!P_MobjWasRemoved(player->mo))
+			{
+				P_DamageMobj(player->mo, NULL, NULL, damage, DMG_NORMAL);
+			}
+
+			CV_CheaterWarning(targetPlayer, va("%d damage to me", damage));
+			break;
+		}
+
+		case NUMBER_OF_CHEATS:
+			break;
+	}
+}
+
 /** Prints the number of displayplayers[0].
   *
   * \todo Possibly remove this; it was useful for debugging at one point.

src/d_netcmd.h

@@ -179,6 +179,7 @@ typedef enum
 	XD_SCHEDULETASK, // 36
 	XD_SCHEDULECLEAR, // 37
 	XD_AUTOMATE,    // 38
+	XD_CHEAT,       // 39
 
 	MAXNETXCMD
 } netxcmd_t;
@@ -278,6 +279,8 @@ void Automate_Clear(void);
 extern UINT32 livestudioaudience_timer;
 void LiveStudioAudience(void);
 
+void D_Cheat(INT32 playernum, INT32 cheat, ...);
+
 // used for the player setup menu
 UINT8 CanChangeSkin(INT32 playernum);
 

src/m_cheat.c

@@ -251,32 +251,18 @@ boolean cht_Responder(event_t *ev)
 // command that can be typed at the console!
 void Command_CheatNoClip_f(void)
 {
-	player_t *plyr;
-
 	REQUIRE_CHEATS;
 	REQUIRE_INLEVEL;
-	REQUIRE_SINGLEPLAYER; // TODO: make netplay compatible
 
-	plyr = &players[consoleplayer];
-
-	if (!plyr->mo || P_MobjWasRemoved(plyr->mo))
-		return;
-
-	plyr->mo->flags ^= MF_NOCLIP;
-	CONS_Printf(M_GetText("No Clipping %s\n"), plyr->mo->flags & MF_NOCLIP ? M_GetText("On") : M_GetText("Off"));
+	D_Cheat(consoleplayer, CHEAT_NOCLIP);
 }
 
 void Command_CheatGod_f(void)
 {
-	player_t *plyr;
-
 	REQUIRE_CHEATS;
 	REQUIRE_INLEVEL;
-	REQUIRE_SINGLEPLAYER; // TODO: make multiplayer compatible
 
-	plyr = &players[consoleplayer];
-	plyr->pflags ^= PF_GODMODE;
-	CONS_Printf(M_GetText("Cheese Mode %s\n"), plyr->pflags & PF_GODMODE ? M_GetText("On") : M_GetText("Off"));
+	D_Cheat(consoleplayer, CHEAT_GOD);
 }
 
 void Command_Scale_f(void)
@@ -286,7 +272,6 @@ void Command_Scale_f(void)
 
 	REQUIRE_CHEATS;
 	REQUIRE_INLEVEL;
-	REQUIRE_SINGLEPLAYER; // TODO: make multiplayer compatible
 
 	if (scale < FRACUNIT/100 || scale > 100*FRACUNIT) //COM_Argv(1) will return a null string if they did not give a paramater, so...
 	{
@@ -294,29 +279,21 @@ void Command_Scale_f(void)
 		return;
 	}
 
-	if (!players[consoleplayer].mo)
-		return;
-
-	players[consoleplayer].mo->destscale = scale;
-
-	CONS_Printf(M_GetText("Scale set to %s\n"), COM_Argv(1));
+	D_Cheat(consoleplayer, CHEAT_SCALE, scale);
 }
 
 void Command_Gravflip_f(void)
 {
 	REQUIRE_CHEATS;
 	REQUIRE_INLEVEL;
-	REQUIRE_SINGLEPLAYER; // TODO: make multiplayer compatible
 
-	if (players[consoleplayer].mo)
-		players[consoleplayer].mo->flags2 ^= MF2_OBJECTFLIP;
+	D_Cheat(consoleplayer, CHEAT_FLIP);
 }
 
 void Command_Hurtme_f(void)
 {
 	REQUIRE_CHEATS;
 	REQUIRE_INLEVEL;
-	REQUIRE_SINGLEPLAYER; // TODO: make multiplayer compatible
 
 	if (COM_Argc() < 2)
 	{
@@ -324,7 +301,7 @@ void Command_Hurtme_f(void)
 		return;
 	}
 
-	P_DamageMobj(players[consoleplayer].mo, NULL, NULL, atoi(COM_Argv(1)), DMG_NORMAL);
+	D_Cheat(consoleplayer, CHEAT_HURT, atoi(COM_Argv(1)));
 }
 
 void Command_RTeleport_f(void)

src/m_cheat.h

@@ -19,6 +19,16 @@
 #include "p_mobj.h"
 #include "command.h"
 
+typedef enum {
+	CHEAT_NOCLIP,
+	CHEAT_GOD,
+	CHEAT_SCALE,
+	CHEAT_FLIP,
+	CHEAT_HURT,
+
+	NUMBER_OF_CHEATS
+} cheat_t;
+
 boolean cht_Responder(event_t *ev);
 void cht_Init(void);