diff --git a/source/games/duke/src/actors_d.cpp b/source/games/duke/src/actors_d.cpp
index 11a1a77cb..ad4701c66 100644
--- a/source/games/duke/src/actors_d.cpp
+++ b/source/games/duke/src/actors_d.cpp
@@ -339,13 +339,13 @@ void movetransports_d(void)
 
 					if (onfloorz == 0 && fabs(act->spr.pos.Z - act2->getOffsetZ()) < 24)
 					{
-						if ((p->jetpack_on == 0) || (p->jetpack_on && (PlayerInput(pnum, SB_JUMP) || p->cmd.ucmd.vel.Z > 0)) ||
-							(p->jetpack_on && (PlayerInput(pnum, SB_CROUCH) || p->cmd.ucmd.vel.Z < 0)))
+						if ((p->jetpack_on == 0) || (p->jetpack_on && (!!(p->cmd.ucmd.actions & SB_JUMP) || p->cmd.ucmd.vel.Z > 0)) ||
+							(p->jetpack_on && (!!(p->cmd.ucmd.actions & SB_CROUCH) || p->cmd.ucmd.vel.Z < 0)))
 						{
 							act2->spr.pos.XY() += Owner->spr.pos.XY() - act->spr.pos.XY();
 							act2->backupvec2();
 
-							if (p->jetpack_on && (PlayerInput(pnum, SB_JUMP) || p->jetpack_on < 11))
+							if (p->jetpack_on && (!!(p->cmd.ucmd.actions & SB_JUMP) || p->jetpack_on < 11))
 								act2->spr.pos.Z = Owner->spr.pos.Z - 24 + gs.playerheight;
 							else act2->spr.pos.Z = Owner->spr.pos.Z + 24 + gs.playerheight;
 							act2->backuppos();
@@ -378,7 +378,7 @@ void movetransports_d(void)
 					}
 
 
-					if (onfloorz && sectlotag == ST_1_ABOVE_WATER && p->on_ground && act2->getOffsetZ() > (sectp->floorz - 16) && (PlayerInput(pnum, SB_CROUCH) || p->cmd.ucmd.vel.Z < 0 || p->vel.Z > 8))
+					if (onfloorz && sectlotag == ST_1_ABOVE_WATER && p->on_ground && act2->getOffsetZ() > (sectp->floorz - 16) && (!!(p->cmd.ucmd.actions & SB_CROUCH) || p->cmd.ucmd.vel.Z < 0 || p->vel.Z > 8))
 						// if( onfloorz && sectlotag == 1 && ps[p].pos.z > (sectp->floorz-(6<<8)) )
 					{
 						k = 1;
diff --git a/source/games/duke/src/actors_r.cpp b/source/games/duke/src/actors_r.cpp
index 707462998..a6faa6e61 100644
--- a/source/games/duke/src/actors_r.cpp
+++ b/source/games/duke/src/actors_r.cpp
@@ -309,13 +309,13 @@ void movetransports_r(void)
 
 					if (onfloorz == 0 && fabs(act->spr.pos.Z - act2->getOffsetZ()) < 24)
 					{
-						if ((p->jetpack_on == 0) || (p->jetpack_on && (PlayerInput(pnum, SB_JUMP) || p->cmd.ucmd.vel.Z > 0)) ||
-							(p->jetpack_on && (PlayerInput(pnum, SB_CROUCH) || p->cmd.ucmd.vel.Z < 0)))
+						if ((p->jetpack_on == 0) || (p->jetpack_on && (!!(p->cmd.ucmd.actions & SB_JUMP) || p->cmd.ucmd.vel.Z > 0)) ||
+							(p->jetpack_on && (!!(p->cmd.ucmd.actions & SB_CROUCH) || p->cmd.ucmd.vel.Z < 0)))
 						{
 							act2->spr.pos.XY() += Owner->spr.pos.XY() - act->spr.pos.XY();
 							act2->backupvec2();
 
-							if (p->jetpack_on && (PlayerInput(pnum, SB_JUMP) || p->jetpack_on < 11))
+							if (p->jetpack_on && (!!(p->cmd.ucmd.actions & SB_JUMP) || p->jetpack_on < 11))
 								act2->spr.pos.Z = Owner->spr.pos.Z - 24 + gs.playerheight;
 							else act2->spr.pos.Z = Owner->spr.pos.Z + 24 + gs.playerheight;
 							act2->backupz();
diff --git a/source/games/duke/src/gameexec.cpp b/source/games/duke/src/gameexec.cpp
index 878ecb64b..b75464a22 100644
--- a/source/games/duke/src/gameexec.cpp
+++ b/source/games/duke/src/gameexec.cpp
@@ -2002,7 +2002,7 @@ int ParseState::parse(void)
 			double vel = g_ac->vel.X;
 
 			// sigh.. this was yet another place where number literals were used as bit masks for every single value, making the code totally unreadable.
-			if( (l& pducking) && p->on_ground && PlayerInput(g_p, SB_CROUCH))
+			if( (l& pducking) && p->on_ground && !!(p->cmd.ucmd.actions & SB_CROUCH))
 					j = 1;
 			else if( (l& pfalling) && p->jumping_counter == 0 && !p->on_ground &&	p->vel.Z > 8 )
 					j = 1;
@@ -2010,15 +2010,15 @@ int ParseState::parse(void)
 					j = 1;
 			else if( (l& pstanding) && vel >= 0 && vel < 0.5)
 					j = 1;
-			else if( (l& pwalking) && vel >= 0.5 && !(PlayerInput(g_p, SB_RUN)) )
+			else if( (l& pwalking) && vel >= 0.5 && !(!!(p->cmd.ucmd.actions & SB_RUN)) )
 					j = 1;
-			else if( (l& prunning) && vel >= 0.5 && PlayerInput(g_p, SB_RUN) )
+			else if( (l& prunning) && vel >= 0.5 && !!(p->cmd.ucmd.actions & SB_RUN) )
 					j = 1;
 			else if( (l& phigher) && pact->getOffsetZ() < g_ac->spr.pos.Z - 48)
 					j = 1;
-			else if( (l& pwalkingback) && vel <= -0.5 && !(PlayerInput(g_p, SB_RUN)) )
+			else if( (l& pwalkingback) && vel <= -0.5 && !(!!(p->cmd.ucmd.actions & SB_RUN)) )
 					j = 1;
-			else if( (l& prunningback) && vel <= -0.5 && (PlayerInput(g_p, SB_RUN)) )
+			else if( (l& prunningback) && vel <= -0.5 && (!!(p->cmd.ucmd.actions & SB_RUN)) )
 					j = 1;
 			else if( (l& pkicking) && ( p->quick_kick > 0 || ( p->curr_weapon == KNEE_WEAPON && p->kickback_pic > 0 ) ) )
 					j = 1;
@@ -2080,7 +2080,7 @@ int ParseState::parse(void)
 		parseifelse(int(g_ac->floorz - g_ac->ceilingz) < *insptr);	// Note: int cast here is needed to use the same truncation behavior as the old fixed point code.
 		break;
 	case concmd_ifhitspace:
-		parseifelse(PlayerInput(g_p, SB_OPEN));
+		parseifelse(!!(p->cmd.ucmd.actions & SB_OPEN));
 		break;
 	case concmd_ifoutside:
 		parseifelse(g_ac->sector()->ceilingstat & CSTAT_SECTOR_SKY);
diff --git a/source/games/duke/src/inlines.h b/source/games/duke/src/inlines.h
index ba7f25871..bc86a5334 100644
--- a/source/games/duke/src/inlines.h
+++ b/source/games/duke/src/inlines.h
@@ -106,11 +106,6 @@ inline bool isIn(int value, const std::initializer_list<int>& list)
 }
 
 // these are mainly here to avoid directly accessing the input data so that it can be more easily refactored later.
-inline bool PlayerInput(int pl, ESyncBits bit)
-{
-	return (!!((getPlayer(pl)->cmd.ucmd.actions) & bit));
-}
-
 inline void PlayerSetItemUsed(int pl, int num)
 {
 	getPlayer(pl)->cmd.ucmd.setItemUsed(num - 1);
diff --git a/source/games/duke/src/input.cpp b/source/games/duke/src/input.cpp
index 9593739a4..f13a29a6b 100644
--- a/source/games/duke/src/input.cpp
+++ b/source/games/duke/src/input.cpp
@@ -60,7 +60,7 @@ void hud_input(int plnum)
 	auto pact = p->GetActor();
 
 	i = p->aim_mode;
-	p->aim_mode = !PlayerInput(plnum, SB_AIMMODE);
+	p->aim_mode = !!!(p->cmd.ucmd.actions & SB_AIMMODE);
 	if (p->aim_mode < i)
 		p->cmd.ucmd.actions |= SB_CENTERVIEW;
 
@@ -76,7 +76,7 @@ void hud_input(int plnum)
 
 	if (isRR())
 	{
-		if (PlayerInput(plnum, SB_QUICK_KICK) && p->last_pissed_time == 0)
+		if (!!(p->cmd.ucmd.actions & SB_QUICK_KICK) && p->last_pissed_time == 0)
 		{
 			if (!isRRRA() || p->GetActor()->spr.extra > 0)
 			{
@@ -94,7 +94,7 @@ void hud_input(int plnum)
 	}
 	else
 	{
-		if (PlayerInput(plnum, SB_QUICK_KICK) && p->quick_kick == 0 && (p->curr_weapon != KNEE_WEAPON || p->kickback_pic == 0))
+		if (!!(p->cmd.ucmd.actions & SB_QUICK_KICK) && p->quick_kick == 0 && (p->curr_weapon != KNEE_WEAPON || p->kickback_pic == 0))
 		{
 			SetGameVarID(g_iReturnVarID, 0, nullptr, plnum);
 			OnEvent(EVENT_QUICKKICK, plnum, nullptr, -1);
@@ -106,7 +106,7 @@ void hud_input(int plnum)
 			}
 		}
 	}
-	if (!PlayerInput(plnum, SB_QUICK_KICK)) p->quick_kick_msg = false;
+	if (!!!(p->cmd.ucmd.actions & SB_QUICK_KICK)) p->quick_kick_msg = false;
 
 	if (!(p->cmd.ucmd.actions & SB_INTERFACE_BITS))
 		p->interface_toggle_flag = 0;
@@ -119,7 +119,7 @@ void hud_input(int plnum)
 		if (p->GetActor()->spr.extra <= 0) return;
 
 		// Activate an inventory item. This just forwards to the other inventory bits. If the inventory selector was taken out of the playsim this could be removed.
-		if (PlayerInput(plnum, SB_INVUSE) && p->newOwner == nullptr)
+		if (!!(p->cmd.ucmd.actions & SB_INVUSE) && p->newOwner == nullptr)
 		{
 			SetGameVarID(g_iReturnVarID, 0, nullptr, plnum);
 			OnEvent(EVENT_INVENTORY, plnum, nullptr, -1);
@@ -159,11 +159,11 @@ void hud_input(int plnum)
 			return;
 		}
 
-		if (PlayerInput(plnum, SB_INVPREV) || PlayerInput(plnum, SB_INVNEXT))
+		if (!!(p->cmd.ucmd.actions & SB_INVPREV) || !!(p->cmd.ucmd.actions & SB_INVNEXT))
 		{
 			p->invdisptime = 26 * 2;
 
-			if (PlayerInput(plnum, SB_INVNEXT)) k = 1;
+			if (!!(p->cmd.ucmd.actions & SB_INVNEXT)) k = 1;
 			else k = 0;
 
 			dainv = p->inven_icon;
@@ -225,13 +225,13 @@ void hud_input(int plnum)
 			else dainv = 0;
 
 			// These events force us to keep the inventory selector in the playsim as opposed to the UI where it really belongs.
-			if (PlayerInput(plnum, SB_INVPREV))
+			if (!!(p->cmd.ucmd.actions & SB_INVPREV))
 			{
 				SetGameVarID(g_iReturnVarID, dainv, nullptr, plnum);
 				OnEvent(EVENT_INVENTORYLEFT, plnum, nullptr, -1);
 				dainv = GetGameVarID(g_iReturnVarID, nullptr, plnum).safeValue();
 			}
-			if (PlayerInput(plnum, SB_INVNEXT))
+			if (!!(p->cmd.ucmd.actions & SB_INVNEXT))
 			{
 				SetGameVarID(g_iReturnVarID, dainv, nullptr, plnum);
 				OnEvent(EVENT_INVENTORYRIGHT, plnum, nullptr, -1);
@@ -250,7 +250,7 @@ void hud_input(int plnum)
 		// Here we have to be extra careful that the weapons do not get mixed up, so let's keep the code for Duke and RR completely separate.
 		fi.selectweapon(plnum, weap);
 
-		if (PlayerInput(plnum, SB_HOLSTER))
+		if (!!(p->cmd.ucmd.actions & SB_HOLSTER))
 		{
 			if (p->curr_weapon > KNEE_WEAPON)
 			{
@@ -476,7 +476,7 @@ void hud_input(int plnum)
 			}
 		}
 
-		if (PlayerInput(plnum, SB_TURNAROUND) && p->Angles.YawSpin == nullAngle && p->on_crane == nullptr)
+		if (!!(p->cmd.ucmd.actions & SB_TURNAROUND) && p->Angles.YawSpin == nullAngle && p->on_crane == nullptr)
 		{
 			SetGameVarID(g_iReturnVarID, 0, nullptr, plnum);
 			OnEvent(EVENT_TURNAROUND, plnum, nullptr, -1);
diff --git a/source/games/duke/src/player.cpp b/source/games/duke/src/player.cpp
index 12d8a2ac8..cfd50e2c5 100644
--- a/source/games/duke/src/player.cpp
+++ b/source/games/duke/src/player.cpp
@@ -1330,7 +1330,7 @@ int checkp(DDukeActor* self, DDukePlayer* p, int flags)
 	unsigned plindex = unsigned(p->pnum);
 
 	// sigh.. this was yet another place where number literals were used as bit masks for every single value, making the code totally unreadable.
-	if ((flags & pducking) && p->on_ground && PlayerInput(plindex, SB_CROUCH))
+	if ((flags & pducking) && p->on_ground && !!(p->cmd.ucmd.actions & SB_CROUCH))
 		j = 1;
 	else if ((flags & pfalling) && p->jumping_counter == 0 && !p->on_ground && p->vel.Z > 8)
 		j = 1;
@@ -1338,15 +1338,15 @@ int checkp(DDukeActor* self, DDukePlayer* p, int flags)
 		j = 1;
 	else if ((flags & pstanding) && vel >= 0 && vel < 0.5)
 		j = 1;
-	else if ((flags & pwalking) && vel >= 0.5 && !(PlayerInput(plindex, SB_RUN)))
+	else if ((flags & pwalking) && vel >= 0.5 && !(!!(p->cmd.ucmd.actions & SB_RUN)))
 		j = 1;
-	else if ((flags & prunning) && vel >= 0.5 && PlayerInput(plindex, SB_RUN))
+	else if ((flags & prunning) && vel >= 0.5 && !!(p->cmd.ucmd.actions & SB_RUN))
 		j = 1;
 	else if ((flags & phigher) && p->GetActor()->getOffsetZ() < self->spr.pos.Z - 48)
 		j = 1;
-	else if ((flags & pwalkingback) && vel <= -0.5 && !(PlayerInput(plindex, SB_RUN)))
+	else if ((flags & pwalkingback) && vel <= -0.5 && !(!!(p->cmd.ucmd.actions & SB_RUN)))
 		j = 1;
-	else if ((flags & prunningback) && vel <= -0.5 && (PlayerInput(plindex, SB_RUN)))
+	else if ((flags & prunningback) && vel <= -0.5 && (!!(p->cmd.ucmd.actions & SB_RUN)))
 		j = 1;
 	else if ((flags & pkicking) && (p->quick_kick > 0 || (p->curr_weapon == KNEE_WEAPON && p->kickback_pic > 0)))
 		j = 1;
diff --git a/source/games/duke/src/player_d.cpp b/source/games/duke/src/player_d.cpp
index 40d879edf..08f40e751 100644
--- a/source/games/duke/src/player_d.cpp
+++ b/source/games/duke/src/player_d.cpp
@@ -521,7 +521,7 @@ int doincrements_d(DDukePlayer* p)
 				}
 			S_PlayActorSound(DUKE_CRACK_FIRST, pact);
 		}
-		else if (p->knuckle_incs == 22 || PlayerInput(snum, SB_FIRE))
+		else if (p->knuckle_incs == 22 || !!(p->cmd.ucmd.actions & SB_FIRE))
 			p->knuckle_incs = 0;
 
 		return 1;
diff --git a/source/games/duke/src/player_r.cpp b/source/games/duke/src/player_r.cpp
index fc8c72a49..d7e116e9a 100644
--- a/source/games/duke/src/player_r.cpp
+++ b/source/games/duke/src/player_r.cpp
@@ -586,7 +586,7 @@ int doincrements_r(DDukePlayer* p)
 					else S_PlayActorSound(DUKE_CRACK2, pact);
 				}
 		}
-		else if (p->knuckle_incs == 22 || PlayerInput(snum, SB_FIRE))
+		else if (p->knuckle_incs == 22 || !!(p->cmd.ucmd.actions & SB_FIRE))
 			p->knuckle_incs = 0;
 
 		return 1;
diff --git a/source/games/duke/src/sectors_d.cpp b/source/games/duke/src/sectors_d.cpp
index a47b1d9ce..637f60edf 100644
--- a/source/games/duke/src/sectors_d.cpp
+++ b/source/games/duke/src/sectors_d.cpp
@@ -223,7 +223,7 @@ void checksectors_d(int snum)
 
 	if (chatmodeon || p->GetActor()->spr.extra <= 0) return;
 
-	if (ud.cashman && PlayerInput(snum, SB_OPEN))
+	if (ud.cashman && !!(p->cmd.ucmd.actions & SB_OPEN))
 		lotsofstuff(p->GetActor(), 2, DukeMailClass);
 
 	if (p->newOwner != nullptr)
@@ -233,14 +233,14 @@ void checksectors_d(int snum)
 			clearcameras(p);
 			return;
 		}
-		else if (PlayerInput(snum, SB_ESCAPE))
+		else if (!!(p->cmd.ucmd.actions & SB_ESCAPE))
 		{
 			clearcameras(p);
 			return;
 		}
 	}
 
-	if (!(PlayerInput(snum, SB_OPEN)))
+	if (!(!!(p->cmd.ucmd.actions & SB_OPEN)))
 		p->toggle_key_flag = 0;
 
 	else if (!p->toggle_key_flag)
@@ -312,7 +312,7 @@ void checksectors_d(int snum)
 				return;
 		}
 
-		if (!PlayerInput(snum, SB_OPEN)) return;
+		if (!!!(p->cmd.ucmd.actions & SB_OPEN)) return;
 		else if (p->newOwner != nullptr)
 		{
 			clearcameras(p);
diff --git a/source/games/duke/src/sectors_r.cpp b/source/games/duke/src/sectors_r.cpp
index 6ab9f94fa..50e98169c 100644
--- a/source/games/duke/src/sectors_r.cpp
+++ b/source/games/duke/src/sectors_r.cpp
@@ -205,11 +205,11 @@ void checksectors_r(int snum)
 
 	if (chatmodeon || p->GetActor()->spr.extra <= 0) return;
 
-	if (ud.cashman && PlayerInput(snum, SB_OPEN))
+	if (ud.cashman && !!(p->cmd.ucmd.actions & SB_OPEN))
 		lotsofstuff(p->GetActor(), 2, DukeMailClass);
 
 
-	if (!(PlayerInput(snum, SB_OPEN)))
+	if (!(!!(p->cmd.ucmd.actions & SB_OPEN)))
 		p->toggle_key_flag = 0;
 
 	else if (!p->toggle_key_flag)
@@ -339,7 +339,7 @@ void checksectors_r(int snum)
 			}
 		}
 
-		if (!PlayerInput(snum, SB_OPEN)) return;
+		if (!!!(p->cmd.ucmd.actions & SB_OPEN)) return;
 
 		if (near.hitWall == nullptr && near.hitSector == nullptr && near.actor() == nullptr)
 			if (hits(p->GetActor()) < 32)