diff --git a/source/blood/src/blood.cpp b/source/blood/src/blood.cpp
index 90ae275c8..3980f5395 100644
--- a/source/blood/src/blood.cpp
+++ b/source/blood/src/blood.cpp
@@ -512,7 +512,6 @@ void GameInterface::app_init()
 
 	Printf(PRINT_NONOTIFY, "Initializing sound system\n");
 	sndInit();
-	registerosdcommands();
 
 	gChoke.init(518, chokeCallback);
 	UpdateDacs(0, true);
diff --git a/source/blood/src/blood.h b/source/blood/src/blood.h
index aaa50aae4..788841e26 100644
--- a/source/blood/src/blood.h
+++ b/source/blood/src/blood.h
@@ -100,6 +100,10 @@ struct GameInterface : ::GameInterface
 	fixed_t playerHorizMin() override { return IntToFixed(-180); }
 	fixed_t playerHorizMax() override { return IntToFixed(120); }
 	int playerKeyMove() override { return 1024; }
+	void WarpToCoords(int x, int y, int z, int a, int h) override;
+	void ToggleThirdPerson() override;
+	void SwitchCoopView() override;
+	void ToggleShowWeapon() override;
 
 	GameStats getStats() override;
 };
diff --git a/source/blood/src/misc.h b/source/blood/src/misc.h
index 10c5c4297..7ca3e24bb 100644
--- a/source/blood/src/misc.h
+++ b/source/blood/src/misc.h
@@ -41,7 +41,6 @@ void InitMirrors(void);
 void sub_5571C(char mode);
 void sub_557C4(int x, int y, int interpolation);
 void DrawMirrors(int x, int y, int z, fixed_t a, fixed_t horiz, int smooth, int viewPlayer);
-int32_t registerosdcommands(void); 
 int qanimateoffs(int a1, int a2);
 int32_t qgetpalookup(int32_t a1, int32_t a2);
 void HookReplaceFunctions();
diff --git a/source/blood/src/osdcmd.cpp b/source/blood/src/osdcmd.cpp
index bab85c9e9..69f72714d 100644
--- a/source/blood/src/osdcmd.cpp
+++ b/source/blood/src/osdcmd.cpp
@@ -38,44 +38,38 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
 BEGIN_BLD_NS
 
-static int osdcmd_warptocoords(CCmdFuncPtr parm)
+void GameInterface::WarpToCoords(int x, int y, int z, int ang, int horz)
 {
-    if (parm->numparms < 3 || parm->numparms > 5)
-        return CCMD_SHOWHELP;
-
     PLAYER *pPlayer = &gPlayer[myconnectindex];
     VIEW* pView = &gPrevView[myconnectindex];
 
-    pPlayer->pSprite->x = pView->at50 = gView->pSprite->x = atoi(parm->parms[0]);
-    pPlayer->pSprite->y = pView->at54 = gView->pSprite->y = atoi(parm->parms[1]);
-    pPlayer->zView      = pView->at38 = gView->zView      = atoi(parm->parms[2]);
+    pPlayer->pSprite->x = pView->at50 = gView->pSprite->x = x;
+    pPlayer->pSprite->y = pView->at54 = gView->pSprite->y = y;
+    pPlayer->zView      = pView->at38 = gView->zView      = z;
 
-    if (parm->numparms >= 4)
+    if (ang != INT_MIN)
     {
-        pPlayer->angle.oang = pPlayer->angle.ang = pView->at30 = gView->angle.ang = buildang(atoi(parm->parms[3]));
+        pPlayer->angle.oang = pPlayer->angle.ang = pView->at30 = gView->angle.ang = buildang(ang);
     }
 
-    if (parm->numparms == 5)
+    if (horz != INT_MIN)
     {
-        pPlayer->horizon.ohoriz = pPlayer->horizon.horiz = pView->at24 = gView->horizon.horiz = buildhoriz(atoi(parm->parms[4]));
+        pPlayer->horizon.ohoriz = pPlayer->horizon.horiz = pView->at24 = gView->horizon.horiz = buildhoriz(horz);
     }
-
-    return CCMD_OK;
 }
 
-static int osdcmd_third_person_view(CCmdFuncPtr parm)
+void GameInterface::ToggleThirdPerson()
 {
-    if (gamestate != GS_LEVEL) return CCMD_OK;
+    if (gamestate != GS_LEVEL) return;
     if (gViewPos > VIEWPOS_0)
         gViewPos = VIEWPOS_0;
     else
         gViewPos = VIEWPOS_1;
-    return CCMD_OK;
 }
 
-static int osdcmd_coop_view(CCmdFuncPtr parm)
+void GameInterface::SwitchCoopView()
 {
-    if (gamestate != GS_LEVEL) return CCMD_OK;
+    if (gamestate != GS_LEVEL) return;
     if (gGameOptions.nGameType == 1)
     {
         gViewIndex = connectpoint2[gViewIndex];
@@ -96,26 +90,12 @@ static int osdcmd_coop_view(CCmdFuncPtr parm)
         } while (oldViewIndex != gViewIndex);
         gView = &gPlayer[gViewIndex];
     }
-    return CCMD_OK;
 }
 
-static int osdcmd_show_weapon(CCmdFuncPtr parm)
+void GameInterface::ToggleShowWeapon()
 {
-    if (gamestate != GS_LEVEL) return CCMD_OK;
+    if (gamestate != GS_LEVEL) return;
     cl_showweapon = (cl_showweapon + 1) & 3;
-    return CCMD_OK;
-}
-
-
-
-int32_t registerosdcommands(void)
-{
-    C_RegisterFunction("warptocoords","warptocoords [x] [y] [z] [ang] (optional) [horiz] (optional): warps the player to the specified coordinates",osdcmd_warptocoords);
-    C_RegisterFunction("third_person_view", "Switch to third person view", osdcmd_third_person_view);
-    C_RegisterFunction("coop_view", "Switch player to view from in coop", osdcmd_coop_view);
-    C_RegisterFunction("show_weapon", "Show opponents' weapons", osdcmd_show_weapon);
-
-    return 0;
 }
 
 END_BLD_NS
diff --git a/source/core/gamestruct.h b/source/core/gamestruct.h
index 13024630a..4e303f6fc 100644
--- a/source/core/gamestruct.h
+++ b/source/core/gamestruct.h
@@ -93,6 +93,10 @@ struct GameInterface
 	virtual fixed_t playerHorizMin() { return IntToFixed(-200); }
 	virtual fixed_t playerHorizMax() { return IntToFixed(200); }
 	virtual int playerKeyMove() { return 0; }
+	virtual void WarpToCoords(int x, int y, int z, int a, int h) {}
+	virtual void ToggleThirdPerson() { }
+	virtual void SwitchCoopView() { Printf("Unsupported command\n"); }
+	virtual void ToggleShowWeapon() { Printf("Unsupported command\n"); }
 
 	virtual FString statFPS()
 	{
diff --git a/source/core/inputstate.cpp b/source/core/inputstate.cpp
index ca660482f..762652512 100644
--- a/source/core/inputstate.cpp
+++ b/source/core/inputstate.cpp
@@ -41,6 +41,8 @@
 #include"packet.h"
 #include "gamecontrol.h"
 #include "gamestruct.h"
+#include "d_net.h"
+#include "gamestate.h"
 
 static int WeaponToSend = 0;
 ESyncBits ActionsToSend = 0;
@@ -327,6 +329,53 @@ CCMD(pause)
 	sendPause = true;
 }
 
+CCMD(warptocoords)
+{
+	if (netgame)
+	{
+		Printf("warptocoords cannot be used in multiplayer.\n");
+		return;
+	}
+	if (argv.argc() <= 4)
+	{
+		Printf("warptocoords [x] [y] [z] [ang] (optional) [horiz] (optional): warps the player to the specified coordinates\n");
+		return;
+	}
+	if (gamestate != GS_LEVEL)
+	{
+		Printf("warptocoords: must be in a level\n");
+		return;
+	}
+	int x = atoi(argv[1]);
+	int y = atoi(argv[2]);
+	int z = atoi(argv[3]);
+	int ang = INT_MIN, horiz = INT_MIN;
+	if (argv.argc() > 4)
+	{
+		ang = atoi(argv[4]);
+	}
+	if (argv.argc() > 5)
+	{
+		horiz = atoi(argv[5]);
+	}
+
+	gi->WarpToCoords(x, y, z, ang, horiz);
+}
+
+CCMD(third_person_view)
+{
+	gi->ToggleThirdPerson();
+}
+
+CCMD(coop_view)
+{
+	gi->SwitchCoopView();
+}
+
+CCMD(show_weapon)
+{
+	gi->ToggleShowWeapon();
+}
 
 void ApplyGlobalInput(InputPacket& input, ControlInfo* hidInput, bool const crouchable, bool const disableToggle)
 {
diff --git a/source/exhumed/src/exhumed.h b/source/exhumed/src/exhumed.h
index 9dc236dcb..37647dd12 100644
--- a/source/exhumed/src/exhumed.h
+++ b/source/exhumed/src/exhumed.h
@@ -267,6 +267,8 @@ struct GameInterface : ::GameInterface
     fixed_t playerHorizMin() override { return IntToFixed(-150); }
     fixed_t playerHorizMax() override { return IntToFixed(150); }
     int playerKeyMove() override { return 6; }
+    void WarpToCoords(int x, int y, int z, int a, int h) override;
+    void ToggleThirdPerson() override;
 
 	::GameStats getStats() override;
 };
diff --git a/source/exhumed/src/osdcmds.cpp b/source/exhumed/src/osdcmds.cpp
index 1ae6f36f3..4ee24d7f6 100644
--- a/source/exhumed/src/osdcmds.cpp
+++ b/source/exhumed/src/osdcmds.cpp
@@ -36,29 +36,24 @@ BEGIN_PS_NS
 
 static bool gamesetinput = false;
 
-static int osdcmd_warptocoords(CCmdFuncPtr parm)
+void GameInterface::WarpToCoords(int x, int y, int z, int ang, int horz)
 {
-    if (parm->numparms < 3 || parm->numparms > 5)
-        return CCMD_SHOWHELP;
-
     Player     *nPlayer = &PlayerList[nLocalPlayer];
     spritetype *pSprite = &sprite[nPlayer->nSprite]; 
 
-    nPlayer->opos.x = pSprite->x = atoi(parm->parms[0]);
-    nPlayer->opos.y = pSprite->y = atoi(parm->parms[1]);
-    nPlayer->opos.z = pSprite->z = atoi(parm->parms[2]);
+    nPlayer->opos.x = pSprite->x = x;
+    nPlayer->opos.y = pSprite->y = y;
+    nPlayer->opos.z = pSprite->z = z;
 
-    if (parm->numparms >= 4)
+    if (ang != INT_MIN)
     {
-        nPlayer->angle.oang = nPlayer->angle.ang = buildang(atoi(parm->parms[3]));
+        nPlayer->angle.oang = nPlayer->angle.ang = buildang(ang);
     }
 
-    if (parm->numparms == 5)
+    if (horz != INT_MIN)
     {
-        nPlayer->horizon.ohoriz = nPlayer->horizon.horiz = buildhoriz(atoi(parm->parms[4]));
+        nPlayer->horizon.ohoriz = nPlayer->horizon.horiz = buildhoriz(horz);
     }
-
-    return CCMD_OK;
 }
 
 static int osdcmd_doors(CCmdFuncPtr parm)
@@ -105,9 +100,9 @@ static int osdcmd_spawn(CCmdFuncPtr parm)
     return CCMD_OK;
 }
 
-static int osdcmd_third_person_view(CCmdFuncPtr parm)
+void GameInterface::ToggleThirdPerson()
 {
-    if (gamestate != GS_LEVEL) return CCMD_OK;
+    if (gamestate != GS_LEVEL) return;
     if (!nFreeze)
     {
         bCamera = !bCamera;
@@ -122,25 +117,14 @@ static int osdcmd_third_person_view(CCmdFuncPtr parm)
     {
         gamesetinput = cl_syncinput = false;
     }
-    return CCMD_OK;
 }
 
 
-static int osdcmd_noop(CCmdFuncPtr parm)
-{
-	// this is for silencing key bindings only.
-	return CCMD_OK;
-}
-
 int32_t registerosdcommands(void)
 {
     //if (VOLUMEONE)
     C_RegisterFunction("doors", "opens/closes doors", osdcmd_doors);
     C_RegisterFunction("spawn","spawn <creaturetype>: spawns a creature",osdcmd_spawn);
-    C_RegisterFunction("warptocoords","warptocoords [x] [y] [z] [ang] (optional) [horiz] (optional): warps the player to the specified coordinates",osdcmd_warptocoords);
-    C_RegisterFunction("third_person_view", "Switch to third person view", osdcmd_third_person_view);
-	C_RegisterFunction("coop_view", "Switch player to view from in coop", osdcmd_noop);
-	C_RegisterFunction("show_weapon", "Show opponents' weapons", osdcmd_noop);
 
     return 0;
 }
diff --git a/source/games/duke/src/animatesprites_d.cpp b/source/games/duke/src/animatesprites_d.cpp
index 0a76369e0..369b22bd6 100644
--- a/source/games/duke/src/animatesprites_d.cpp
+++ b/source/games/duke/src/animatesprites_d.cpp
@@ -337,7 +337,7 @@ void animatesprites_d(int x, int y, int a, int smoothratio)
 				}
 			}
 
-			if ((display_mirror == 1 || screenpeek != p || !h->GetOwner()) && ud.multimode > 1 && ud.showweapons && ps[p].GetActor()->s.extra > 0 && ps[p].curr_weapon > 0)
+			if ((display_mirror == 1 || screenpeek != p || !h->GetOwner()) && ud.multimode > 1 && cl_showweapon && ps[p].GetActor()->s.extra > 0 && ps[p].curr_weapon > 0)
 			{
 				auto newtspr = &tsprite[spritesortcnt];
 				memcpy(newtspr, t, sizeof(spritetype));
diff --git a/source/games/duke/src/animatesprites_r.cpp b/source/games/duke/src/animatesprites_r.cpp
index 89d8b9694..a87c11ee4 100644
--- a/source/games/duke/src/animatesprites_r.cpp
+++ b/source/games/duke/src/animatesprites_r.cpp
@@ -384,7 +384,7 @@ void animatesprites_r(int x, int y, int a, int smoothratio)
 				}
 			}
 
-			if ((display_mirror == 1 || screenpeek != p || !h->GetOwner()) && ud.multimode > 1 && ud.showweapons && ps[p].GetActor()->s.extra > 0 && ps[p].curr_weapon > 0)
+			if ((display_mirror == 1 || screenpeek != p || !h->GetOwner()) && ud.multimode > 1 && cl_showweapon && ps[p].GetActor()->s.extra > 0 && ps[p].curr_weapon > 0)
 			{
 				auto newtspr = &tsprite[spritesortcnt];
 				memcpy(newtspr, t, sizeof(spritetype));
diff --git a/source/games/duke/src/bowling.cpp b/source/games/duke/src/bowling.cpp
index 70283953b..876e95f85 100644
--- a/source/games/duke/src/bowling.cpp
+++ b/source/games/duke/src/bowling.cpp
@@ -33,9 +33,6 @@ Prepared for public release: 03/21/2003 - Charlie Wiederhold, 3D Realms
 
 BEGIN_DUKE_NS
 
-short pinsectorresetdown(short sect);
-
-
 void ballreturn(DDukeActor *ball)
 {
 	DukeStatIterator it(STAT_BOWLING);
diff --git a/source/games/duke/src/ccmds.cpp b/source/games/duke/src/ccmds.cpp
index f082ec62e..ed4ae4578 100644
--- a/source/games/duke/src/ccmds.cpp
+++ b/source/games/duke/src/ccmds.cpp
@@ -103,33 +103,28 @@ static int ccmd_spawn(CCmdFuncPtr parm)
 	return CCMD_OK;
 }
 
-static int osdcmd_warptocoords(CCmdFuncPtr parm)
+void GameInterface::WarpToCoords(int x, int y, int z, int ang, int horz)
 {
-	if (parm->numparms < 3 || parm->numparms > 5)
-		return CCMD_SHOWHELP;
-
 	player_struct* p = &ps[myconnectindex];
 
-	p->oposx = p->posx = atoi(parm->parms[0]);
-	p->oposy = p->posy = atoi(parm->parms[1]);
-	p->oposz = p->posz = atoi(parm->parms[2]);
+	p->oposx = p->posx = x;
+	p->oposy = p->posy = y;
+	p->oposz = p->posz = z;
 
-    if (parm->numparms >= 4)
+    if (ang != INT_MIN)
     {
-        p->angle.oang = p->angle.ang = buildang(atoi(parm->parms[3]));
+        p->angle.oang = p->angle.ang = buildang(ang);
     }
 
-    if (parm->numparms == 5)
+    if (horz != INT_MIN)
     {
-        p->horizon.ohoriz = p->horizon.horiz = buildhoriz(atoi(parm->parms[4]));
+        p->horizon.ohoriz = p->horizon.horiz = buildhoriz(horz);
     }
-
-	return CCMD_OK;
 }
 
-static int osdcmd_third_person_view(CCmdFuncPtr parm)
+void GameInterface::ToggleThirdPerson()
 {
-	if (gamestate != GS_LEVEL) return CCMD_OK;
+	if (gamestate != GS_LEVEL) return;
 	if (!isRRRA() || (!ps[myconnectindex].OnMotorcycle && !ps[myconnectindex].OnBoat))
 	{
 		if (ps[myconnectindex].over_shoulder_on)
@@ -142,42 +137,29 @@ static int osdcmd_third_person_view(CCmdFuncPtr parm)
 		}
 		FTA(QUOTE_VIEW_MODE_OFF + ps[myconnectindex].over_shoulder_on, &ps[myconnectindex]);
 	}
-	return CCMD_OK;
 }
 
-static int osdcmd_coop_view(CCmdFuncPtr parm)
+void GameInterface::SwitchCoopView()
 {
-	if (gamestate != GS_LEVEL) return CCMD_OK;
+	if (gamestate != GS_LEVEL) return;
 	if (ud.coop || ud.recstat == 2)
 	{
 		screenpeek = connectpoint2[screenpeek];
 		if (screenpeek == -1) screenpeek = 0;
 	}
-	return CCMD_OK;
 }
 
-static int osdcmd_show_weapon(CCmdFuncPtr parm)
+void GameInterface::ToggleShowWeapon()
 {
-	if (gamestate != GS_LEVEL) return CCMD_OK;
-	if (ud.multimode > 1)
-	{
-		ud.showweapons = 1 - ud.showweapons;
-		cl_showweapon = ud.showweapons;
-		FTA(QUOTE_WEAPON_MODE_OFF - ud.showweapons, &ps[screenpeek]);
-	}
-
-	return CCMD_OK;
+	if (gamestate != GS_LEVEL) return;
+	cl_showweapon = cl_showweapon == 0;
+	FTA(QUOTE_WEAPON_MODE_OFF - cl_showweapon, &ps[screenpeek]);
 }
 
 
 int registerosdcommands(void)
 {
 	C_RegisterFunction("spawn","spawn <picnum> [palnum] [cstat] [ang] [x y z]: spawns a sprite with the given properties",ccmd_spawn);
-	C_RegisterFunction("warptocoords","warptocoords [x] [y] [z] [ang] (optional) [horiz] (optional): warps the player to the specified coordinates",osdcmd_warptocoords);
-	C_RegisterFunction("third_person_view", "Switch to third person view", osdcmd_third_person_view);
-	C_RegisterFunction("coop_view", "Switch player to view from in coop", osdcmd_coop_view);
-	C_RegisterFunction("show_weapon", "Show opponents' weapons", osdcmd_show_weapon);
-
 	return 0;
 }
 
diff --git a/source/games/duke/src/cheats.cpp b/source/games/duke/src/cheats.cpp
index 4ebc0c75d..f96519bfc 100644
--- a/source/games/duke/src/cheats.cpp
+++ b/source/games/duke/src/cheats.cpp
@@ -291,7 +291,6 @@ static bool cheatItems(int player)
 
 static bool cheatLevel(cheatseq_t *s)
 {
-	lastlevel = 0;
 	int volnume,levnume;
 	volnume = s->Args[0] - '0' - 1;
 	levnume = (s->Args[1] - '0')*10+(s->Args[2]-'0') - 1;
diff --git a/source/games/duke/src/duke3d.h b/source/games/duke/src/duke3d.h
index 17a513a12..0d484c29b 100644
--- a/source/games/duke/src/duke3d.h
+++ b/source/games/duke/src/duke3d.h
@@ -59,6 +59,10 @@ struct GameInterface : public ::GameInterface
 	void LevelCompleted(MapRecord* map, int skill) override;
 	bool DrawAutomapPlayer(int x, int y, int z, int a) override;
 	int playerKeyMove() override { return 40; }
+	void WarpToCoords(int x, int y, int z, int a, int h) override;
+	void ToggleThirdPerson() override;
+	void SwitchCoopView() override;
+	void ToggleShowWeapon() override;
 
 };
 
diff --git a/source/games/duke/src/gameexec.cpp b/source/games/duke/src/gameexec.cpp
index 5d2368f13..e52cc3cea 100644
--- a/source/games/duke/src/gameexec.cpp
+++ b/source/games/duke/src/gameexec.cpp
@@ -126,8 +126,8 @@ static void DoUserDef(bool bSet, int lVar1, int lLabelID, int lVar2, DDukeActor*
 		break;
 
 	case USERDEFS_SHOWWEAPONS:
-		if (bSet) ud.showweapons = lValue;
-		else SetGameVarID((int)lVar2, ud.showweapons, sActor, sPlayer);
+		// Read-only user state.
+		if (!bSet) SetGameVarID((int)lVar2, cl_showweapon, sActor, sPlayer);
 		break;
 
 	case USERDEFS_FROM_BONUS:
diff --git a/source/games/duke/src/premap.cpp b/source/games/duke/src/premap.cpp
index 09763c05a..a2248f1e4 100644
--- a/source/games/duke/src/premap.cpp
+++ b/source/games/duke/src/premap.cpp
@@ -919,6 +919,7 @@ void enterlevel(MapRecord *mi, int gamemode)
     ud.monsters_off = ud.m_monsters_off;
     ud.coop = ud.m_coop;
     ud.ffire = ud.m_ffire;
+    lastlevel = 0;
 
     OnEvent(EVENT_ENTERLEVEL);
 
@@ -994,7 +995,6 @@ void startnewgame(MapRecord* map, int skill)
     newgame(map, skill, [=](bool)
         {
             enterlevel(map, 0);
-            ud.showweapons = cl_showweapon;
             PlayerColorChanged();
             inputState.ClearAllInput();
             gameaction = ga_level;
diff --git a/source/games/duke/src/types.h b/source/games/duke/src/types.h
index 95f4f0bd2..000dc1454 100644
--- a/source/games/duke/src/types.h
+++ b/source/games/duke/src/types.h
@@ -126,7 +126,6 @@ struct user_defs
 	int levelclock;
 	unsigned char god, cashman, eog;
 	unsigned char clipping;
-	unsigned char showweapons;
 	unsigned char user_pals[MAXPLAYERS];
 
 	short from_bonus;
diff --git a/source/sw/src/game.h b/source/sw/src/game.h
index 032d71a2a..bc06bfbe7 100644
--- a/source/sw/src/game.h
+++ b/source/sw/src/game.h
@@ -2186,6 +2186,9 @@ struct GameInterface : ::GameInterface
 	void NewGame(MapRecord *map, int skill) override;
     bool DrawAutomapPlayer(int x, int y, int z, int a) override;
     int playerKeyMove() override { return 35; }
+    void WarpToCoords(int x, int y, int z, int a, int h) override;
+    void ToggleThirdPerson() override;
+    void SwitchCoopView() override;
 
 
     GameStats getStats() override;
diff --git a/source/sw/src/osdcmds.cpp b/source/sw/src/osdcmds.cpp
index fd98ca6db..d4c785d6a 100644
--- a/source/sw/src/osdcmds.cpp
+++ b/source/sw/src/osdcmds.cpp
@@ -48,26 +48,21 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
 BEGIN_SW_NS
 
-static int osdcmd_warptocoords(CCmdFuncPtr parm)
+void GameInterface::WarpToCoords(int x, int y, int z, int ang, int horz)
 {
-    if (parm->numparms < 3 || parm->numparms > 5)
-        return CCMD_SHOWHELP;
+    Player->oposx = Player->posx = x;
+    Player->oposy = Player->posy = y;
+    Player->oposz = Player->posz = z;
 
-    Player->oposx = Player->posx = atoi(parm->parms[0]);
-    Player->oposy = Player->posy = atoi(parm->parms[1]);
-    Player->oposz = Player->posz = atoi(parm->parms[2]);
-
-    if (parm->numparms >= 4)
+    if (ang != INT_MIN)
     {
-		Player->angle.oang = Player->angle.ang = buildang(atoi(parm->parms[3]));
+		Player->angle.oang = Player->angle.ang = buildang(ang);
     }
 
-    if (parm->numparms == 5)
+    if (horz != INT_MIN)
     {
-    	Player->horizon.ohoriz = Player->horizon.horiz = buildhoriz(atoi(parm->parms[4]));
+    	Player->horizon.ohoriz = Player->horizon.horiz = buildhoriz(horz);
     }
-
-    return CCMD_OK;
 }
 
 static int osdcmd_mirror(CCmdFuncPtr parm)
@@ -100,9 +95,9 @@ static int osdcmd_mirror(CCmdFuncPtr parm)
     return CCMD_OK;
 }
 
-static int osdcmd_third_person_view(CCmdFuncPtr parm)
+void GameInterface::ToggleThirdPerson()
 {
-    if (gamestate != GS_LEVEL) return CCMD_OK;
+    if (gamestate != GS_LEVEL) return;
     auto pp = &Player[myconnectindex];
     if (inputState.ShiftPressed())
     {
@@ -121,12 +116,11 @@ static int osdcmd_third_person_view(CCmdFuncPtr parm)
             pp->camera_dist = 0;
         }
     }
-    return CCMD_OK;
 }
 
-static int osdcmd_coop_view(CCmdFuncPtr parm)
+void GameInterface::SwitchCoopView()
 {
-    if (gamestate != GS_LEVEL) return CCMD_OK;
+    if (gamestate != GS_LEVEL) return;
     if (gNet.MultiGameType == MULTI_GAME_COOPERATIVE)
     {
         screenpeek = connectpoint2[screenpeek];
@@ -148,23 +142,11 @@ static int osdcmd_coop_view(CCmdFuncPtr parm)
             DoPlayerNightVisionPalette(tp);
         }
     }
-    return CCMD_OK;
-}
-
-static int osdcmd_noop(CCmdFuncPtr parm)
-{
-	// this is for silencing key bindings only.
-	return CCMD_OK;
 }
 
 int32_t registerosdcommands(void)
 {
     C_RegisterFunction("mirror_debug", "mirror [mirrornum]: print mirror debug info", osdcmd_mirror);
-    C_RegisterFunction("warptocoords","warptocoords [x] [y] [z] [ang] (optional) [horiz] (optional): warps the player to the specified coordinates",osdcmd_warptocoords);
-    C_RegisterFunction("third_person_view", "Switch to third person view", osdcmd_third_person_view);
-    C_RegisterFunction("coop_view", "Switch player to view from in coop", osdcmd_coop_view);
-	C_RegisterFunction("show_weapon", "Show opponents' weapons", osdcmd_noop);
-
     return 0;
 }