diff --git a/src/d_net.cpp b/src/d_net.cpp
index b3e70d410..a2a60a2d9 100644
--- a/src/d_net.cpp
+++ b/src/d_net.cpp
@@ -951,7 +951,7 @@ void NetUpdate (void)
 	newtics = nowtime - gametime;
 	gametime = nowtime;
 
-	if (newtics <= 0 || pauseext)	// nothing new to update or window paused
+	if (newtics <= 0)	// nothing new to update
 	{
 		GetPackets ();
 		return;
@@ -1810,6 +1810,7 @@ void TryRunTics (void)
 
 	// If paused, do not eat more CPU time than we need, because it
 	// will all be wasted anyway.
+	if (pauseext) r_NoInterpolate = true;
 	bool doWait = cl_capfps || r_NoInterpolate /*|| netgame*/;
 
 	// get real tics
@@ -1934,7 +1935,7 @@ void TryRunTics (void)
 			C_Ticker ();
 			M_Ticker ();
 			I_GetTime (true);
-			G_Ticker ();
+			if (!pauseext) G_Ticker();
 			gametic++;
 
 			NetUpdate ();	// check for new console commands
diff --git a/src/g_shared/a_movingcamera.cpp b/src/g_shared/a_movingcamera.cpp
index e3db71ff3..83d0d4695 100644
--- a/src/g_shared/a_movingcamera.cpp
+++ b/src/g_shared/a_movingcamera.cpp
@@ -301,14 +301,14 @@ void APathFollower::Tick ()
 		bJustStepped = false;
 		if (CurrNode->args[2])
 		{
-			HoldTime = gametic + CurrNode->args[2] * TICRATE / 8;
+			HoldTime = level.time + CurrNode->args[2] * TICRATE / 8;
 			x = CurrNode->x;
 			y = CurrNode->y;
 			z = CurrNode->z;
 		}
 	}
 
-	if (HoldTime > gametic)
+	if (HoldTime > level.time)
 		return;
 
 	// Splines must have a previous node.
diff --git a/src/g_shared/a_pickups.cpp b/src/g_shared/a_pickups.cpp
index 1aab998a9..2888ea2b6 100644
--- a/src/g_shared/a_pickups.cpp
+++ b/src/g_shared/a_pickups.cpp
@@ -1372,6 +1372,8 @@ bool AInventory::TryPickupRestricted (AActor *&toucher)
 
 bool AInventory::CallTryPickup (AActor *toucher, AActor **toucher_return)
 {
+	TObjPtr<AInventory> Invstack = Inventory; // A pointer of the inventories item stack.
+
 	// unmorphed versions of a currently morphed actor cannot pick up anything. 
 	if (toucher->flags & MF_UNMORPHED) return false;
 
@@ -1392,7 +1394,27 @@ bool AInventory::CallTryPickup (AActor *toucher, AActor **toucher_return)
 		GoAwayAndDie();
 	}
 
-	if (res) GiveQuest(toucher);
+	if (res)
+	{
+		GiveQuest(toucher);
+
+		// Transfer all inventory accross that the old object had, if requested.
+		if ((ItemFlags & IF_TRANSFER))
+		{
+			while (Invstack)
+			{
+				AInventory* titem = Invstack;
+				Invstack = titem->Inventory;
+				if (titem->Owner == this)
+				{
+					if (!titem->CallTryPickup(toucher)) // The object no longer can exist
+					{
+						titem->Destroy();
+					}
+				}
+			}
+		}
+	}
 	return res;
 }
 
diff --git a/src/g_shared/a_pickups.h b/src/g_shared/a_pickups.h
index 8616393e7..df0c94b46 100644
--- a/src/g_shared/a_pickups.h
+++ b/src/g_shared/a_pickups.h
@@ -136,7 +136,7 @@ enum
 	IF_NOSCREENFLASH	= 1<<21,	// No pickup flash on the player's screen
 	IF_TOSSED			= 1<<22,	// Was spawned by P_DropItem (i.e. as a monster drop)
 	IF_ALWAYSRESPAWN	= 1<<23,	// Always respawn, regardless of dmflag
-
+	IF_TRANSFER			= 1<<24,	// All inventory items that the inventory item contains is also transfered to the pickuper
 };
 
 
diff --git a/src/g_shared/sbarinfo.cpp b/src/g_shared/sbarinfo.cpp
index 8ffedb5a4..791021ae8 100644
--- a/src/g_shared/sbarinfo.cpp
+++ b/src/g_shared/sbarinfo.cpp
@@ -1280,8 +1280,8 @@ public:
 
 			// We can't use DTA_HUDRules since it forces a width and height.
 			// Translation: No high res.
-			bool xright = *x < 0;
-			bool ybot = *y < 0;
+			bool xright = *x < 0 && !x.RelCenter();
+			bool ybot = *y < 0 && !y.RelCenter();
 
 			w = (forceWidth < 0 ? texture->GetScaledWidthDouble() : forceWidth);
 			h = (forceHeight < 0 ? texture->GetScaledHeightDouble() : forceHeight);
diff --git a/src/g_strife/a_loremaster.cpp b/src/g_strife/a_loremaster.cpp
index 38cadab34..d984bbdd3 100644
--- a/src/g_strife/a_loremaster.cpp
+++ b/src/g_strife/a_loremaster.cpp
@@ -30,7 +30,7 @@ int ALoreShot::DoSpecialDamage (AActor *victim, int damage, FName damagetype)
 		thrust.Z = float(target->z - victim->z);
 	
 		thrust.MakeUnit();
-		thrust *= float((255*50*FRACUNIT) / (victim->Mass ? target->Mass : 1));
+		thrust *= float((255*50*FRACUNIT) / (victim->Mass ? victim->Mass : 1));
 	
 		victim->velx += fixed_t(thrust.X);
 		victim->vely += fixed_t(thrust.Y);
diff --git a/src/menu/optionmenu.cpp b/src/menu/optionmenu.cpp
index eff53fc49..9a7715265 100644
--- a/src/menu/optionmenu.cpp
+++ b/src/menu/optionmenu.cpp
@@ -196,9 +196,9 @@ bool DOptionMenu::MenuEvent (int mkey, bool fromcontroller)
 			--mDesc->mSelectedItem;
 
 			if (mDesc->mScrollPos > 0 &&
-				mDesc->mSelectedItem == mDesc->mScrollTop + mDesc->mScrollPos)
+				mDesc->mSelectedItem <= mDesc->mScrollTop + mDesc->mScrollPos)
 			{
-				mDesc->mScrollPos--;
+				mDesc->mScrollPos = MAX(mDesc->mSelectedItem - mDesc->mScrollTop - 1, 0);
 			}
 
 			if (mDesc->mSelectedItem < 0) 
diff --git a/src/p_enemy.cpp b/src/p_enemy.cpp
index ef6136fdc..17af5c26d 100644
--- a/src/p_enemy.cpp
+++ b/src/p_enemy.cpp
@@ -2721,7 +2721,14 @@ void A_Chase(AActor *self)
 // A_FaceTracer
 //
 //=============================================================================
-void A_Face (AActor *self, AActor *other, angle_t max_turn, angle_t max_pitch)
+enum FAF_Flags
+{
+	FAF_BOTTOM = 1,
+	FAF_MIDDLE = 2,
+	FAF_TOP = 4,
+	FAF_NODISTFACTOR = 8,
+};
+void A_Face (AActor *self, AActor *other, angle_t max_turn, angle_t max_pitch, angle_t ang_offset, angle_t pitch_offset, int flags)
 {
 	if (!other)
 		return;
@@ -2744,28 +2751,28 @@ void A_Face (AActor *self, AActor *other, angle_t max_turn, angle_t max_pitch)
 		{
 			if (self->angle - other_angle < ANGLE_180)
 			{
-				self->angle -= max_turn;
+				self->angle -= max_turn + ang_offset;
 			}
 			else
 			{
-				self->angle += max_turn;
+				self->angle += max_turn + ang_offset;
 			}
 		}
 		else
 		{
 			if (other_angle - self->angle < ANGLE_180)
 			{
-				self->angle += max_turn;
+				self->angle += max_turn + ang_offset;
 			}
 			else
 			{
-				self->angle -= max_turn;
+				self->angle -= max_turn + ang_offset;
 			}
 		}
 	}
 	else
 	{
-		self->angle = other_angle;
+		self->angle = other_angle + ang_offset;
 	}
 
 	// [DH] Now set pitch. In order to maintain compatibility, this can be
@@ -2776,20 +2783,33 @@ void A_Face (AActor *self, AActor *other, angle_t max_turn, angle_t max_pitch)
 		// result is only used in a ratio.
 		double dist_x = other->x - self->x;
 		double dist_y = other->y - self->y;
+		
 		// Positioning ala missile spawning, 32 units above foot level
 		fixed_t source_z = self->z + 32*FRACUNIT + self->GetBobOffset();
 		fixed_t target_z = other->z + 32*FRACUNIT + other->GetBobOffset();
+
 		// If the target z is above the target's head, reposition to the middle of
-		// its body.
+		// its body.		
 		if (target_z >= other->z + other->height)
 		{
-			target_z = other->z + other->height / 2;
+			target_z = other->z + (other->height / 2);
 		}
+
+		//Note there is no +32*FRACUNIT on purpose. This is for customization sake. 
+		//If one doesn't want this behavior, just don't use FAF_BOTTOM.
+		if (flags & FAF_BOTTOM)
+			target_z = other->z + other->GetBobOffset(); 
+		if (flags & FAF_MIDDLE)
+			target_z = other->z + (other->height / 2) + other->GetBobOffset();
+		if (flags & FAF_TOP)
+			target_z = other->z + (other->height) + other->GetBobOffset();
+		if (!flags & FAF_NODISTFACTOR)
+			target_z += pitch_offset;
+
 		double dist_z = target_z - source_z;
 		double dist = sqrt(dist_x*dist_x + dist_y*dist_y + dist_z*dist_z);
-
 		int other_pitch = (int)rad2bam(asin(dist_z / dist));
-
+		
 		if (max_pitch != 0)
 		{
 			if (self->pitch > other_pitch)
@@ -2807,7 +2827,11 @@ void A_Face (AActor *self, AActor *other, angle_t max_turn, angle_t max_pitch)
 		{
 			self->pitch = other_pitch;
 		}
+		if (flags & FAF_NODISTFACTOR)
+			self->pitch += pitch_offset;
 	}
+	
+
 
 	// This will never work well if the turn angle is limited.
 	if (max_turn == 0 && (self->angle == other_angle) && other->flags & MF_SHADOW && !(self->flags6 & MF6_SEEINVISIBLE) )
@@ -2816,46 +2840,55 @@ void A_Face (AActor *self, AActor *other, angle_t max_turn, angle_t max_pitch)
     }
 }
 
-void A_FaceTarget (AActor *self, angle_t max_turn, angle_t max_pitch)
+void A_FaceTarget(AActor *self, angle_t max_turn, angle_t max_pitch, angle_t ang_offset, angle_t pitch_offset, int flags)
 {
-	A_Face(self, self->target, max_turn, max_pitch);
+	A_Face(self, self->target, max_turn, max_pitch, ang_offset, pitch_offset, flags);
 }
 
-void A_FaceMaster (AActor *self, angle_t max_turn, angle_t max_pitch)
+void A_FaceMaster(AActor *self, angle_t max_turn, angle_t max_pitch, angle_t ang_offset, angle_t pitch_offset, int flags)
 {
-	A_Face(self, self->master, max_turn, max_pitch);
+	A_Face(self, self->master, max_turn, max_pitch, ang_offset, pitch_offset, flags);
 }
 
-void A_FaceTracer (AActor *self, angle_t max_turn, angle_t max_pitch)
+void A_FaceTracer(AActor *self, angle_t max_turn, angle_t max_pitch, angle_t ang_offset, angle_t pitch_offset, int flags)
 {
-	A_Face(self, self->tracer, max_turn, max_pitch);
+	A_Face(self, self->tracer, max_turn, max_pitch, ang_offset, pitch_offset, flags);
 }
 
 DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_FaceTarget)
 {
-	ACTION_PARAM_START(2);
+	ACTION_PARAM_START(5);
 	ACTION_PARAM_ANGLE(max_turn, 0);
 	ACTION_PARAM_ANGLE(max_pitch, 1);
+	ACTION_PARAM_ANGLE(ang_offset, 2);
+	ACTION_PARAM_ANGLE(pitch_offset, 3);
+	ACTION_PARAM_INT(flags, 4);
 
-	A_FaceTarget(self, max_turn, max_pitch);
+	A_FaceTarget(self, max_turn, max_pitch, ang_offset, pitch_offset, flags);
 }
 
 DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_FaceMaster)
 {
-	ACTION_PARAM_START(2);
+	ACTION_PARAM_START(5);
 	ACTION_PARAM_ANGLE(max_turn, 0);
 	ACTION_PARAM_ANGLE(max_pitch, 1);
+	ACTION_PARAM_ANGLE(ang_offset, 2);
+	ACTION_PARAM_ANGLE(pitch_offset, 3);
+	ACTION_PARAM_INT(flags, 4);
 
-	A_FaceMaster(self, max_turn, max_pitch);
+	A_FaceMaster(self, max_turn, max_pitch, ang_offset, pitch_offset, flags);
 }
 
 DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_FaceTracer)
 {
-	ACTION_PARAM_START(2);
+	ACTION_PARAM_START(5);
 	ACTION_PARAM_ANGLE(max_turn, 0);
 	ACTION_PARAM_ANGLE(max_pitch, 1);
+	ACTION_PARAM_ANGLE(ang_offset, 2);
+	ACTION_PARAM_ANGLE(pitch_offset, 3);
+	ACTION_PARAM_INT(flags, 4);
 
-	A_FaceTracer(self, max_turn, max_pitch);
+	A_FaceTracer(self, max_turn, max_pitch, ang_offset, pitch_offset, flags);
 }
 
 //===========================================================================
diff --git a/src/p_enemy.h b/src/p_enemy.h
index f5cc387dd..799b4c0ff 100644
--- a/src/p_enemy.h
+++ b/src/p_enemy.h
@@ -72,8 +72,8 @@ DECLARE_ACTION(A_FreezeDeathChunks)
 DECLARE_ACTION(A_BossDeath)
 
 void A_Chase(AActor *self);
-void A_FaceTarget(AActor *actor, angle_t max_turn = 0, angle_t max_pitch = ANGLE_270);
-void A_Face(AActor *self, AActor *other, angle_t max_turn = 0, angle_t max_pitch = ANGLE_270);
+void A_FaceTarget(AActor *actor, angle_t max_turn = 0, angle_t max_pitch = ANGLE_270, angle_t ang_offset = 0, angle_t pitch_offset = 0, int flags = 0);
+void A_Face(AActor *self, AActor *other, angle_t max_turn = 0, angle_t max_pitch = ANGLE_270, angle_t ang_offset = 0, angle_t pitch_offset = 0, int flags = 0);
 
 bool A_RaiseMobj (AActor *, fixed_t speed);
 bool A_SinkMobj (AActor *, fixed_t speed);
diff --git a/src/p_mobj.cpp b/src/p_mobj.cpp
index ef23ca0ba..c61b77eba 100644
--- a/src/p_mobj.cpp
+++ b/src/p_mobj.cpp
@@ -587,6 +587,7 @@ void AActor::RemoveInventory (AInventory *item)
 			*invp = item->Inventory;
 			item->DetachFromOwner ();
 			item->Owner = NULL;
+			item->Inventory = NULL;
 			break;
 		}
 	}
@@ -1968,8 +1969,6 @@ fixed_t P_XYMovement (AActor *mo, fixed_t scrollx, fixed_t scrolly)
 					// Don't change the angle if there's THRUREFLECT on the monster.
 					if (!(BlockingMobj->flags7 & MF7_THRUREFLECT))
 					{
-						//int dir;
-						//angle_t delta;
 						angle = R_PointToAngle2(BlockingMobj->x, BlockingMobj->y, mo->x, mo->y);
 						bool dontReflect = (mo->AdjustReflectionAngle(BlockingMobj, angle));
 						// Change angle for deflection/reflection
@@ -1996,12 +1995,21 @@ fixed_t P_XYMovement (AActor *mo, fixed_t scrollx, fixed_t scrolly)
 							}
 							else
 							{
-								
-								mo->angle = angle;
-								angle >>= ANGLETOFINESHIFT;
-								mo->velx = FixedMul(mo->Speed >> 1, finecosine[angle]);
-								mo->vely = FixedMul(mo->Speed >> 1, finesine[angle]);
-								mo->velz = -mo->velz / 2;
+								if (BlockingMobj->flags7 & MF7_MIRRORREFLECT && (tg || blockingtg))
+								{
+									mo->angle += ANGLE_180;
+									mo->velx = -mo->velx / 2;
+									mo->vely = -mo->vely / 2;
+									mo->velz = -mo->velz / 2;
+								}
+								else
+								{
+									mo->angle = angle;
+									angle >>= ANGLETOFINESHIFT;
+									mo->velx = FixedMul(mo->Speed >> 1, finecosine[angle]);
+									mo->vely = FixedMul(mo->Speed >> 1, finesine[angle]);
+									mo->velz = -mo->velz / 2;
+								}
 							}
 						}
 						else
@@ -2932,11 +2940,8 @@ bool AActor::AdjustReflectionAngle (AActor *thing, angle_t &angle)
 {
 	if (flags2 & MF2_DONTREFLECT) return true;
 	if (thing->flags7 & MF7_THRUREFLECT) return false;
-
-	if (thing->flags7 & MF7_MIRRORREFLECT)
-		angle += ANGLE_180;
 	// Change angle for reflection
-	else if (thing->flags4&MF4_SHIELDREFLECT)
+	if (thing->flags4&MF4_SHIELDREFLECT)
 	{
 		// Shield reflection (from the Centaur
 		if (abs (angle - thing->angle)>>24 > 45)
@@ -2959,15 +2964,23 @@ bool AActor::AdjustReflectionAngle (AActor *thing, angle_t &angle)
 		else 
 			angle -= ANG45;
 	}
-	else if (thing->flags7 & MF7_AIMREFLECT)
+	else
+	{
+		angle += ANGLE_1 * ((pr_reflect() % 16) - 8);
+	}
+	//Always check for AIMREFLECT, no matter what else is checked above.
+	if (thing->flags7 & MF7_AIMREFLECT)
 	{
 		if (this->target != NULL)
+		{
 			A_Face(this, this->target);
+		}
 		else if (thing->target != NULL)
+		{
 			A_Face(this, thing->target);
+		}
 	}
-	else 
-		angle += ANGLE_1 * ((pr_reflect()%16)-8);
+	
 	return false;
 }
 
diff --git a/src/po_man.cpp b/src/po_man.cpp
index c6e273a0f..bb9b3ca46 100644
--- a/src/po_man.cpp
+++ b/src/po_man.cpp
@@ -676,7 +676,7 @@ void DPolyDoor::Tick ()
 		break;
 
 	case PODOOR_SWING:
-		if (poly->RotatePolyobj (m_Speed))
+		if (m_Dist <= 0 || poly->RotatePolyobj (m_Speed))
 		{
 			absSpeed = abs (m_Speed);
 			if (m_Dist == -1)
diff --git a/src/posix/sdl/hardware.cpp b/src/posix/sdl/hardware.cpp
index 4f1fa9e6f..83c855de5 100644
--- a/src/posix/sdl/hardware.cpp
+++ b/src/posix/sdl/hardware.cpp
@@ -99,10 +99,20 @@ void I_ShutdownGraphics ()
 	}
 	if (Video)
 		delete Video, Video = NULL;
+
+	SDL_QuitSubSystem (SDL_INIT_VIDEO);
 }
 
 void I_InitGraphics ()
 {
+	if (SDL_InitSubSystem (SDL_INIT_VIDEO) < 0)
+	{
+		I_FatalError ("Could not initialize SDL video:\n%s\n", SDL_GetError());
+		return;
+	}
+
+	Printf("Using video driver %s\n", SDL_GetCurrentVideoDriver());
+
 	UCVarValue val;
 
 	val.Bool = !!Args->CheckParm ("-devparm");
diff --git a/src/posix/sdl/i_joystick.cpp b/src/posix/sdl/i_joystick.cpp
index 9b1d326ae..d99caeca9 100644
--- a/src/posix/sdl/i_joystick.cpp
+++ b/src/posix/sdl/i_joystick.cpp
@@ -1,4 +1,4 @@
-#include <SDL_joystick.h>
+#include <SDL.h>
 
 #include "doomdef.h"
 #include "templates.h"
@@ -266,11 +266,16 @@ static SDLInputJoystickManager *JoystickManager;
 
 void I_StartupJoysticks()
 {
-	JoystickManager = new SDLInputJoystickManager();
+	if(SDL_InitSubSystem(SDL_INIT_JOYSTICK) >= 0)
+		JoystickManager = new SDLInputJoystickManager();
 }
 void I_ShutdownJoysticks()
 {
-	delete JoystickManager;
+	if(JoystickManager)
+	{
+		delete JoystickManager;
+		SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
+	}
 }
 
 void I_GetJoysticks(TArray<IJoystickConfig *> &sticks)
diff --git a/src/posix/sdl/i_main.cpp b/src/posix/sdl/i_main.cpp
index ff700eff4..d60494d1a 100644
--- a/src/posix/sdl/i_main.cpp
+++ b/src/posix/sdl/i_main.cpp
@@ -265,14 +265,13 @@ int main (int argc, char **argv)
 	
 	setlocale (LC_ALL, "C");
 
-	if (SDL_Init (SDL_INIT_VIDEO|SDL_INIT_TIMER|SDL_INIT_NOPARACHUTE|SDL_INIT_JOYSTICK) == -1)
+	if (SDL_Init (0) < 0)
 	{
 		fprintf (stderr, "Could not initialize SDL:\n%s\n", SDL_GetError());
 		return -1;
 	}
 	atterm (SDL_Quit);
 
-	printf("Using video driver %s\n", SDL_GetCurrentVideoDriver());
 	printf("\n");
 	
     try
diff --git a/src/posix/sdl/i_timer.cpp b/src/posix/sdl/i_timer.cpp
index e3f9906b6..6255c8a96 100644
--- a/src/posix/sdl/i_timer.cpp
+++ b/src/posix/sdl/i_timer.cpp
@@ -195,6 +195,9 @@ fixed_t I_GetTimeFrac (uint32 *ms)
 
 void I_InitTimer ()
 {
+	if(SDL_InitSubSystem(SDL_INIT_TIMER) < 0)
+		I_FatalError("Could not initialize SDL timers:\n%s\n", SDL_GetError());
+
 	I_GetTime = I_GetTimeSelect;
 	I_WaitForTic = I_WaitForTicSelect;
 	I_FreezeTime = I_FreezeTimeSelect;
@@ -202,5 +205,5 @@ void I_InitTimer ()
 
 void I_ShutdownTimer ()
 {
-
+	SDL_QuitSubSystem(SDL_INIT_TIMER);
 }
diff --git a/src/resourcefiles/file_wad.cpp b/src/resourcefiles/file_wad.cpp
index 384290782..55a6f5f06 100644
--- a/src/resourcefiles/file_wad.cpp
+++ b/src/resourcefiles/file_wad.cpp
@@ -581,9 +581,18 @@ void FWadFile::SkinHack ()
 				namespc++;
 			}
 		}
-		if (lump->Name[0] == 'M' &&
-			lump->Name[1] == 'A' &&
-			lump->Name[2] == 'P')
+		if ((lump->Name[0] == 'M' &&
+			 lump->Name[1] == 'A' &&
+			 lump->Name[2] == 'P' &&
+			 lump->Name[3] >= '0' && lump->Name[3] <= '9' &&
+			 lump->Name[4] >= '0' && lump->Name[4] <= '9' &&
+			 lump->Name[5] >= '\0')
+			||
+			(lump->Name[0] == 'E' &&
+			 lump->Name[1] >= '0' && lump->Name[1] <= '9' &&
+			 lump->Name[2] == 'M' &&
+			 lump->Name[3] >= '0' && lump->Name[3] <= '9' &&
+			 lump->Name[4] >= '\0'))
 		{
 			hasmap = true;
 		}
diff --git a/src/thingdef/thingdef_codeptr.cpp b/src/thingdef/thingdef_codeptr.cpp
index be3921877..9db52f728 100644
--- a/src/thingdef/thingdef_codeptr.cpp
+++ b/src/thingdef/thingdef_codeptr.cpp
@@ -1670,14 +1670,17 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_CustomRailgun)
 //
 //===========================================================================
 
-static void DoGiveInventory(AActor * receiver, DECLARE_PARAMINFO)
+static void DoGiveInventory(AActor * receiver, bool use_aaptr, DECLARE_PARAMINFO)
 {
-	ACTION_PARAM_START(3);
+	ACTION_PARAM_START(2+use_aaptr);
 	ACTION_PARAM_CLASS(mi, 0);
 	ACTION_PARAM_INT(amount, 1);
-	ACTION_PARAM_INT(setreceiver, 2);
 
-	COPY_AAPTR_NOT_NULL(receiver, receiver, setreceiver);
+	if (use_aaptr)
+	{
+		ACTION_PARAM_INT(setreceiver, 2);
+		COPY_AAPTR_NOT_NULL(receiver, receiver, setreceiver);
+	}
 
 	bool res=true;
 	
@@ -1685,6 +1688,11 @@ static void DoGiveInventory(AActor * receiver, DECLARE_PARAMINFO)
 	if (mi) 
 	{
 		AInventory *item = static_cast<AInventory *>(Spawn (mi, 0, 0, 0, NO_REPLACE));
+		if (!item)
+		{
+			ACTION_SET_RESULT(false);
+			return;
+		}
 		if (item->IsKindOf(RUNTIME_CLASS(AHealth)))
 		{
 			item->Amount *= amount;
@@ -1709,12 +1717,12 @@ static void DoGiveInventory(AActor * receiver, DECLARE_PARAMINFO)
 
 DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_GiveInventory)
 {
-	DoGiveInventory(self, PUSH_PARAMINFO);
+	DoGiveInventory(self, true, PUSH_PARAMINFO);
 }	
 
 DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_GiveToTarget)
 {
-	DoGiveInventory(self->target, PUSH_PARAMINFO);
+	DoGiveInventory(self->target, true, PUSH_PARAMINFO);
 }	
 
 DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_GiveToChildren)
@@ -1724,7 +1732,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_GiveToChildren)
 
 	while ((mo = it.Next()))
 	{
-		if (mo->master == self) DoGiveInventory(mo, PUSH_PARAMINFO);
+		if (mo->master == self) DoGiveInventory(mo, false, PUSH_PARAMINFO);
 	}
 }
 
@@ -1737,7 +1745,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_GiveToSiblings)
 	{
 		while ((mo = it.Next()))
 		{
-			if (mo->master == self->master && mo != self) DoGiveInventory(mo, PUSH_PARAMINFO);
+			if (mo->master == self->master && mo != self) DoGiveInventory(mo, false, PUSH_PARAMINFO);
 		}
 	}
 }
@@ -1753,16 +1761,23 @@ enum
 	TIF_NOTAKEINFINITE = 1,
 };
 
-void DoTakeInventory(AActor * receiver, DECLARE_PARAMINFO)
+void DoTakeInventory(AActor * receiver, bool use_aaptr, DECLARE_PARAMINFO)
 {
-	ACTION_PARAM_START(4);
+	ACTION_PARAM_START(3+use_aaptr);
 	ACTION_PARAM_CLASS(item, 0);
 	ACTION_PARAM_INT(amount, 1);
 	ACTION_PARAM_INT(flags, 2);
-	ACTION_PARAM_INT(setreceiver, 3);
 	
-	if (!item) return;
-	COPY_AAPTR_NOT_NULL(receiver, receiver, setreceiver);
+	if (!item)
+	{
+		ACTION_SET_RESULT(false);
+		return;
+	}
+	if (use_aaptr)
+	{
+		ACTION_PARAM_INT(setreceiver, 3);
+		COPY_AAPTR_NOT_NULL(receiver, receiver, setreceiver);
+	}
 
 	bool res = false;
 
@@ -1794,12 +1809,12 @@ void DoTakeInventory(AActor * receiver, DECLARE_PARAMINFO)
 
 DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_TakeInventory)
 {
-	DoTakeInventory(self, PUSH_PARAMINFO);
+	DoTakeInventory(self, true, PUSH_PARAMINFO);
 }	
 
 DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_TakeFromTarget)
 {
-	DoTakeInventory(self->target, PUSH_PARAMINFO);
+	DoTakeInventory(self->target, true, PUSH_PARAMINFO);
 }	
 
 DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_TakeFromChildren)
@@ -1809,7 +1824,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_TakeFromChildren)
 
 	while ((mo = it.Next()))
 	{
-		if (mo->master == self) DoTakeInventory(mo, PUSH_PARAMINFO);
+		if (mo->master == self) DoTakeInventory(mo, false, PUSH_PARAMINFO);
 	}
 }
 
@@ -1822,7 +1837,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_TakeFromSiblings)
 	{
 		while ((mo = it.Next()))
 		{
-			if (mo->master == self->master && mo != self) DoTakeInventory(mo, PUSH_PARAMINFO);
+			if (mo->master == self->master && mo != self) DoTakeInventory(mo, false, PUSH_PARAMINFO);
 		}
 	}
 }
diff --git a/src/thingdef/thingdef_data.cpp b/src/thingdef/thingdef_data.cpp
index fbe28fb5b..e91c2ee65 100644
--- a/src/thingdef/thingdef_data.cpp
+++ b/src/thingdef/thingdef_data.cpp
@@ -324,6 +324,7 @@ static FFlagDef InventoryFlags[] =
 	DEFINE_FLAG(IF, NOSCREENFLASH, AInventory, ItemFlags),
 	DEFINE_FLAG(IF, TOSSED, AInventory, ItemFlags),
 	DEFINE_FLAG(IF, ALWAYSRESPAWN, AInventory, ItemFlags),
+	DEFINE_FLAG(IF, TRANSFER, AInventory, ItemFlags),
 
 	DEFINE_DEPRECATED_FLAG(PICKUPFLASH),
 	DEFINE_DEPRECATED_FLAG(INTERHUBSTRIP),};
diff --git a/wadsrc/static/actors/actor.txt b/wadsrc/static/actors/actor.txt
index f0e68d9a5..c03c86596 100644
--- a/wadsrc/static/actors/actor.txt
+++ b/wadsrc/static/actors/actor.txt
@@ -82,9 +82,9 @@ ACTOR Actor native //: Thinker
 	action native A_XScream();
 	action native A_Look();
 	action native A_Chase(state melee = "*", state missile = "none", int flags = 0);
-	action native A_FaceTarget(float max_turn = 0, float max_pitch = 270);
-	action native A_FaceTracer(float max_turn = 0, float max_pitch = 270);
-	action native A_FaceMaster(float max_turn = 0, float max_pitch = 270);
+	action native A_FaceTarget(float max_turn = 0, float max_pitch = 270, float ang_offset = 0, float pitch_offset = 0, int flags = 0);
+	action native A_FaceTracer(float max_turn = 0, float max_pitch = 270, float ang_offset = 0, float pitch_offset = 0, int flags = 0);
+	action native A_FaceMaster(float max_turn = 0, float max_pitch = 270, float ang_offset = 0, float pitch_offset = 0, int flags = 0);
 	action native A_PosAttack();
 	action native A_Scream();
 	action native A_SPosAttack();
diff --git a/wadsrc/static/actors/constants.txt b/wadsrc/static/actors/constants.txt
index 074953afe..b4bb4c532 100644
--- a/wadsrc/static/actors/constants.txt
+++ b/wadsrc/static/actors/constants.txt
@@ -447,6 +447,15 @@ enum
 	FTF_CLAMP =		1 << 1,
 };
 
+// Flags for A_Face*
+enum
+{
+	FAF_BOTTOM = 1,
+	FAF_MIDDLE = 2,
+	FAF_TOP = 4,
+	FAF_NODISTFACTOR = 8,
+};
+
 
 // This is only here to provide one global variable for testing.
 native int testglobalvar;