From 7497b329c296ee36e29c2315efef733e8ab3818f Mon Sep 17 00:00:00 2001
From: Braden Obrzut <admin@maniacsvault.net>
Date: Fri, 5 Jun 2015 21:57:42 -0400
Subject: [PATCH 01/22] - Fixed: zipdir wrote the central directory incorrectly
 on PowerPC.

---
 tools/zipdir/zipdir.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/zipdir/zipdir.c b/tools/zipdir/zipdir.c
index db6a57e1ef..ae354af633 100644
--- a/tools/zipdir/zipdir.c
+++ b/tools/zipdir/zipdir.c
@@ -804,7 +804,7 @@ void write_zip(const char *zipname, dir_tree_t *trees, int update)
 		if (i == num_files)
 		{
 			// Write central directory.
-			dirend.DirectoryOffset = ftell(zip);
+			dirend.DirectoryOffset = LittleLong(ftell(zip));
 			for (i = 0; i < num_files; ++i)
 			{
 				write_central_dir(zip, sorted + i);
@@ -814,8 +814,8 @@ void write_zip(const char *zipname, dir_tree_t *trees, int update)
 			dirend.DiskNumber = 0;
 			dirend.FirstDisk = 0;
 			dirend.NumEntriesOnAllDisks = dirend.NumEntries = LittleShort(i);
-			dirend.DirectorySize = LittleLong(ftell(zip) - dirend.DirectoryOffset);
-			dirend.DirectoryOffset = LittleLong(dirend.DirectoryOffset);
+			// In this case LittleLong(dirend.DirectoryOffset) is undoing the transformation done above.
+			dirend.DirectorySize = LittleLong(ftell(zip) - LittleLong(dirend.DirectoryOffset));
 			dirend.ZipCommentLength = 0;
 			if (fwrite(&dirend, sizeof(dirend), 1, zip) != 1)
 			{
@@ -1405,7 +1405,7 @@ BYTE *find_central_dir(FILE *fin)
 	if (pos_found == 0 ||
 		fseek(fin, pos_found, SEEK_SET) != 0 ||
 		fread(&eod, sizeof(eod), 1, fin) != 1 ||
-		fseek(fin, LittleShort(eod.DirectoryOffset), SEEK_SET) != 0)
+		fseek(fin, LittleLong(eod.DirectoryOffset), SEEK_SET) != 0)
 	{
 		return NULL;
 	}

From 662345adb8f65506d341fc82f2c3c599ae9722b7 Mon Sep 17 00:00:00 2001
From: Braden Obrzut <admin@maniacsvault.net>
Date: Fri, 5 Jun 2015 22:22:54 -0400
Subject: [PATCH 02/22] - Fixed: More endian issues in the ACS VM.

---
 src/p_acs.cpp | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/src/p_acs.cpp b/src/p_acs.cpp
index 5cd5774f49..2cc9f958f2 100644
--- a/src/p_acs.cpp
+++ b/src/p_acs.cpp
@@ -1959,13 +1959,12 @@ bool FBehavior::Init(int lumpnum, FileReader * fr, int len)
 			chunk = (DWORD *)FindChunk (MAKE_ID('M','S','T','R'));
 			if (chunk != NULL)
 			{
-				for (DWORD i = 0; i < chunk[1]/4; ++i)
+				for (DWORD i = 0; i < LittleLong(chunk[1])/4; ++i)
 				{
-//					MapVarStore[chunk[i+2]] |= LibraryID;
-					const char *str = LookupString(MapVarStore[chunk[i+2]]);
+					const char *str = LookupString(MapVarStore[LittleLong(chunk[i+2])]);
 					if (str != NULL)
 					{
-						MapVarStore[chunk[i+2]] = GlobalACSStrings.AddString(str, NULL, 0);
+						MapVarStore[LittleLong(chunk[i+2])] = GlobalACSStrings.AddString(str, NULL, 0);
 					}
 				}
 			}
@@ -1973,7 +1972,7 @@ bool FBehavior::Init(int lumpnum, FileReader * fr, int len)
 			chunk = (DWORD *)FindChunk (MAKE_ID('A','S','T','R'));
 			if (chunk != NULL)
 			{
-				for (DWORD i = 0; i < chunk[1]/4; ++i)
+				for (DWORD i = 0; i < LittleLong(chunk[1])/4; ++i)
 				{
 					int arraynum = MapVarStore[LittleLong(chunk[i+2])];
 					if ((unsigned)arraynum < (unsigned)NumArrays)
@@ -2000,13 +1999,13 @@ bool FBehavior::Init(int lumpnum, FileReader * fr, int len)
 				// First byte is version, it should be 0
 				if(*chunkData++ == 0)
 				{
-					int arraynum = MapVarStore[uallong(*(const int*)(chunkData))];
+					int arraynum = MapVarStore[uallong(LittleLong(*(const int*)(chunkData)))];
 					chunkData += 4;
 					if ((unsigned)arraynum < (unsigned)NumArrays)
 					{
 						SDWORD *elems = ArrayStore[arraynum].Elements;
 						// Ending zeros may be left out.
-						for (int j = MIN(chunk[1]-5, ArrayStore[arraynum].ArraySize); j > 0; --j, ++elems, ++chunkData)
+						for (int j = MIN(LittleLong(chunk[1])-5, ArrayStore[arraynum].ArraySize); j > 0; --j, ++elems, ++chunkData)
 						{
 							// For ATAG, a value of 0 = Integer, 1 = String, 2 = FunctionPtr
 							// Our implementation uses the same tags for both String and FunctionPtr
@@ -2073,7 +2072,7 @@ bool FBehavior::Init(int lumpnum, FileReader * fr, int len)
 					ScriptFunction *func = &((ScriptFunction *)Functions)[j];
 					if (func->Address == 0 && func->ImportNum == 0)
 					{
-						int libfunc = lib->FindFunctionName ((char *)(chunk + 2) + chunk[3+j]);
+						int libfunc = lib->FindFunctionName ((char *)(chunk + 2) + LittleLong(chunk[3+j]));
 						if (libfunc >= 0)
 						{
 							ScriptFunction *realfunc = &((ScriptFunction *)lib->Functions)[libfunc];
@@ -2086,14 +2085,14 @@ bool FBehavior::Init(int lumpnum, FileReader * fr, int len)
 								if (realfunc->ArgCount != func->ArgCount)
 								{
 									Printf (TEXTCOLOR_ORANGE "Function %s in %s has %d arguments. %s expects it to have %d.\n",
-										(char *)(chunk + 2) + chunk[3+j], lib->ModuleName, realfunc->ArgCount,
+										(char *)(chunk + 2) + LittleLong(chunk[3+j]), lib->ModuleName, realfunc->ArgCount,
 										ModuleName, func->ArgCount);
 									Format = ACS_Unknown;
 								}
 								// The next two properties do not affect code compatibility, so it is
 								// okay for them to be different in the imported module than they are
 								// in this one, as long as we make sure to use the real values.
-								func->LocalCount = realfunc->LocalCount;
+								func->LocalCount = LittleLong(realfunc->LocalCount);
 								func->HasReturnValue = realfunc->HasReturnValue;
 							}
 						}
@@ -2105,7 +2104,7 @@ bool FBehavior::Init(int lumpnum, FileReader * fr, int len)
 				if (chunk != NULL)
 				{
 					char *parse = (char *)&chunk[2];
-					for (DWORD j = 0; j < chunk[1]; )
+					for (DWORD j = 0; j < LittleLong(chunk[1]); )
 					{
 						DWORD varNum = LittleLong(*(DWORD *)&parse[j]);
 						j += 4;

From a87a86198c8736d6334bd236f0dc6e8e7e6784eb Mon Sep 17 00:00:00 2001
From: "Eevee (Alex Munroe)" <eevee.git@veekun.com>
Date: Sat, 6 Jun 2015 15:27:03 -0700
Subject: [PATCH 03/22] Transfer friction to swimmable 3D floors.

---
 src/p_map.cpp | 39 ++++++++++++++++++++++++++++++++++++---
 1 file changed, 36 insertions(+), 3 deletions(-)

diff --git a/src/p_map.cpp b/src/p_map.cpp
index b76919a7de..3676225b12 100644
--- a/src/p_map.cpp
+++ b/src/p_map.cpp
@@ -574,6 +574,27 @@ int P_GetFriction(const AActor *mo, int *frictionfactor)
 	{
 		friction = secfriction(mo->Sector);
 		movefactor = secmovefac(mo->Sector) >> 1;
+
+#ifdef _3DFLOORS
+			// Check 3D floors -- might be the source of the waterlevel
+			for (unsigned i = 0; i < mo->Sector->e->XFloor.ffloors.Size(); i++)
+			{
+				F3DFloor *rover = mo->Sector->e->XFloor.ffloors[i];
+				if (!(rover->flags & FF_EXISTS)) continue;
+				if (!(rover->flags & FF_SWIMMABLE)) continue;
+
+				if (mo->z > rover->top.plane->ZatPoint(mo->x, mo->y) ||
+					mo->z < rover->bottom.plane->ZatPoint(mo->x, mo->y))
+					continue;
+
+				newfriction = secfriction(rover->model);
+				if (newfriction < friction || friction == ORIG_FRICTION)
+				{
+					friction = newfriction;
+					movefactor = secmovefac(rover->model) >> 1;
+				}
+			}
+#endif
 	}
 	else if (var_friction && !(mo->flags & (MF_NOCLIP | MF_NOGRAVITY)))
 	{	// When the object is straddling sectors with the same
@@ -590,10 +611,22 @@ int P_GetFriction(const AActor *mo, int *frictionfactor)
 			{
 				F3DFloor *rover = sec->e->XFloor.ffloors[i];
 				if (!(rover->flags & FF_EXISTS)) continue;
-				if (!(rover->flags & FF_SOLID)) continue;
 
-				// Player must be on top of the floor to be affected...
-				if (mo->z != rover->top.plane->ZatPoint(mo->x, mo->y)) continue;
+				if (rover->flags & FF_SOLID)
+				{
+					// Must be standing on a solid floor
+					if (mo->z != rover->top.plane->ZatPoint(mo->x, mo->y)) continue;
+				}
+				else if (rover->flags & FF_SWIMMABLE)
+				{
+					// Or on or inside a swimmable floor (e.g. in shallow water)
+					if (mo->z > rover->top.plane->ZatPoint(mo->x, mo->y) ||
+						(mo->z + mo->height) < rover->bottom.plane->ZatPoint(mo->x, mo->y))
+						continue;
+				}
+				else
+					continue;
+
 				newfriction = secfriction(rover->model);
 				if (newfriction < friction || friction == ORIG_FRICTION)
 				{

From 8a428e69b6bcd4ec18832f4706866da224babf65 Mon Sep 17 00:00:00 2001
From: "Eevee (Alex Munroe)" <eevee.git@veekun.com>
Date: Sat, 6 Jun 2015 15:31:12 -0700
Subject: [PATCH 04/22] Don't play a terrain splash if the player didn't take
 damage.

---
 src/p_spec.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/p_spec.cpp b/src/p_spec.cpp
index 42a7b9ca46..5f29c3c53d 100644
--- a/src/p_spec.cpp
+++ b/src/p_spec.cpp
@@ -738,12 +738,13 @@ void P_PlayerOnSpecialFlat (player_t *player, int floorType)
 			}
 		}
 
+		int damage = 0;
 		if (ironfeet == NULL)
 		{
-			P_DamageMobj (player->mo, NULL, NULL, Terrains[floorType].DamageAmount,
+			damage = P_DamageMobj (player->mo, NULL, NULL, Terrains[floorType].DamageAmount,
 				Terrains[floorType].DamageMOD);
 		}
-		if (Terrains[floorType].Splash != -1)
+		if (damage > 0 && Terrains[floorType].Splash != -1)
 		{
 			S_Sound (player->mo, CHAN_AUTO,
 				Splashes[Terrains[floorType].Splash].NormalSplashSound, 1,

From 221c2d2d822bc44d1ccafa9f53fca3225aacd860 Mon Sep 17 00:00:00 2001
From: "Eevee (Alex Munroe)" <eevee.git@veekun.com>
Date: Sat, 6 Jun 2015 16:03:11 -0700
Subject: [PATCH 05/22] Transfer flat-based damage (P_PlayerOnSpecialFlat) to
 3D floors.

---
 src/p_3dfloors.cpp | 12 ++++++++++--
 src/p_spec.cpp     |  6 ------
 src/p_user.cpp     |  8 +++++++-
 3 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/src/p_3dfloors.cpp b/src/p_3dfloors.cpp
index cc76beaa31..2f81dd6a80 100644
--- a/src/p_3dfloors.cpp
+++ b/src/p_3dfloors.cpp
@@ -41,6 +41,7 @@
 #include "w_wad.h"
 #include "sc_man.h"
 #include "g_level.h"
+#include "p_terrain.h"
 #include "r_data/colormaps.h"
 
 #ifdef _3DFLOORS
@@ -341,8 +342,15 @@ void P_PlayerOnSpecial3DFloor(player_t* player)
 				(player->mo->z + player->mo->height) < rover->bottom.plane->ZatPoint(player->mo->x, player->mo->y))
 				continue;
 		}
-		
-		if (rover->model->special || rover->model->damage) P_PlayerInSpecialSector(player, rover->model);
+
+		// Apply sector specials
+		if (rover->model->special || rover->model->damage)
+			P_PlayerInSpecialSector(player, rover->model);
+
+		// Apply flat specials (using the ceiling!)
+		P_PlayerOnSpecialFlat(
+			player, TerrainTypes[rover->model->GetTexture(sector_t::ceiling)]);
+
 		break;
 	}
 }
diff --git a/src/p_spec.cpp b/src/p_spec.cpp
index 5f29c3c53d..9bc0d4a9bc 100644
--- a/src/p_spec.cpp
+++ b/src/p_spec.cpp
@@ -718,12 +718,6 @@ void P_GiveSecret(AActor *actor, bool printmessage, bool playsound, int sectornu
 
 void P_PlayerOnSpecialFlat (player_t *player, int floorType)
 {
-	if (player->mo->z > player->mo->Sector->floorplane.ZatPoint (
-		player->mo->x, player->mo->y) &&
-		!player->mo->waterlevel)
-	{ // Player is not touching the floor
-		return;
-	}
 	if (Terrains[floorType].DamageAmount &&
 		!(level.time & Terrains[floorType].DamageTimeMask))
 	{
diff --git a/src/p_user.cpp b/src/p_user.cpp
index 5f9a69c3a0..0617e5d6a1 100644
--- a/src/p_user.cpp
+++ b/src/p_user.cpp
@@ -2535,7 +2535,13 @@ void P_PlayerThink (player_t *player)
 		{
 			P_PlayerInSpecialSector (player);
 		}
-		P_PlayerOnSpecialFlat (player, P_GetThingFloorType (player->mo));
+		if (player->mo->z <= player->mo->Sector->floorplane.ZatPoint(
+			player->mo->x, player->mo->y) ||
+			player->mo->waterlevel)
+		{
+			// Player must be touching the floor
+			P_PlayerOnSpecialFlat(player, P_GetThingFloorType(player->mo));
+		}
 		if (player->mo->velz <= -player->mo->FallingScreamMinSpeed &&
 			player->mo->velz >= -player->mo->FallingScreamMaxSpeed && !player->morphTics &&
 			player->mo->waterlevel == 0)

From 8fa9aa26275e71b32cd92065c7ba6d80c7fd1b17 Mon Sep 17 00:00:00 2001
From: "Eevee (Alex Munroe)" <eevee.git@veekun.com>
Date: Sat, 6 Jun 2015 18:08:18 -0700
Subject: [PATCH 06/22] Use the correct sidedef's middle scaling when drawing
 3D floors.

This wants `curline->sidedef`, which is the 3D sidedef currently being
drawn.  `sidedef` appears to be the last regular sidedef that happened
to be drawn?  The perils of globals.
---
 src/r_segs.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/r_segs.cpp b/src/r_segs.cpp
index cf00abc452..bfa4fdee4c 100644
--- a/src/r_segs.cpp
+++ b/src/r_segs.cpp
@@ -557,8 +557,8 @@ void R_RenderFakeWall(drawseg_t *ds, int x1, int x2, F3DFloor *rover)
 	MaskedSWall = (fixed_t *)(openings + ds->swall) - ds->x1;
 
 	// find positioning
-	xscale = FixedMul(rw_pic->xScale, sidedef->GetTextureXScale(side_t::mid));
-	yscale = FixedMul(rw_pic->yScale, sidedef->GetTextureYScale(side_t::mid));
+	xscale = FixedMul(rw_pic->xScale, curline->sidedef->GetTextureXScale(side_t::mid));
+	yscale = FixedMul(rw_pic->yScale, curline->sidedef->GetTextureYScale(side_t::mid));
 	// encapsulate the lifetime of rowoffset
 	fixed_t rowoffset = curline->sidedef->GetTextureYOffset(side_t::mid) + rover->master->sidedef[0]->GetTextureYOffset(side_t::mid);
 	dc_texturemid = rover->model->GetPlaneTexZ(sector_t::ceiling);

From 15b97c14093d80563f4773d17ea00e86b7b13ad0 Mon Sep 17 00:00:00 2001
From: "Eevee (Alex Munroe)" <eevee.git@veekun.com>
Date: Sat, 6 Jun 2015 18:26:13 -0700
Subject: [PATCH 07/22] Fix scaling of 3D floor wall textures.

The scale factors are now taken from the same part of the sidedef that
provides the texture.
---
 src/r_segs.cpp | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/src/r_segs.cpp b/src/r_segs.cpp
index bfa4fdee4c..7bcfec13a2 100644
--- a/src/r_segs.cpp
+++ b/src/r_segs.cpp
@@ -557,8 +557,25 @@ void R_RenderFakeWall(drawseg_t *ds, int x1, int x2, F3DFloor *rover)
 	MaskedSWall = (fixed_t *)(openings + ds->swall) - ds->x1;
 
 	// find positioning
-	xscale = FixedMul(rw_pic->xScale, curline->sidedef->GetTextureXScale(side_t::mid));
-	yscale = FixedMul(rw_pic->yScale, curline->sidedef->GetTextureYScale(side_t::mid));
+	side_t *scaledside;
+	side_t::ETexpart scaledpart;
+	if (rover->flags & FF_UPPERTEXTURE)
+	{
+		scaledside = curline->sidedef;
+		scaledpart = side_t::top;
+	}
+	else if (rover->flags & FF_LOWERTEXTURE)
+	{
+		scaledside = curline->sidedef;
+		scaledpart = side_t::bottom;
+	}
+	else
+	{
+		scaledside = rover->master->sidedef[0];
+		scaledpart = side_t::mid;
+	}
+	xscale = FixedMul(rw_pic->xScale, scaledside->GetTextureXScale(scaledpart));
+	yscale = FixedMul(rw_pic->yScale, scaledside->GetTextureYScale(scaledpart));
 	// encapsulate the lifetime of rowoffset
 	fixed_t rowoffset = curline->sidedef->GetTextureYOffset(side_t::mid) + rover->master->sidedef[0]->GetTextureYOffset(side_t::mid);
 	dc_texturemid = rover->model->GetPlaneTexZ(sector_t::ceiling);

From 3fea074d35d971cbfceef96c1b5dd57a468455fe Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <c.oelckers@zdoom.fake>
Date: Sun, 7 Jun 2015 09:33:15 +0200
Subject: [PATCH 08/22] - respect FF_INVERTSECTOR when checking a 3D floor's
 terrain.

---
 src/p_3dfloors.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/p_3dfloors.cpp b/src/p_3dfloors.cpp
index 2f81dd6a80..8091ffb92c 100644
--- a/src/p_3dfloors.cpp
+++ b/src/p_3dfloors.cpp
@@ -349,7 +349,7 @@ void P_PlayerOnSpecial3DFloor(player_t* player)
 
 		// Apply flat specials (using the ceiling!)
 		P_PlayerOnSpecialFlat(
-			player, TerrainTypes[rover->model->GetTexture(sector_t::ceiling)]);
+			player, TerrainTypes[rover->model->GetTexture(rover->flags & FF_INVERTSECTOR? sector_t::floor : sector_t::ceiling)]);
 
 		break;
 	}

From 4444d3c0c50c220978ec1c7a8d62eaa43a9d42ba Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <c.oelckers@zdoom.fake>
Date: Sun, 7 Jun 2015 09:41:44 +0200
Subject: [PATCH 09/22] - removed the _3DFLOOR #define because we really do not
 want to comment this out anymore, right?

---
 src/am_map.cpp                   |  8 -------
 src/g_heretic/a_hereticweaps.cpp |  4 ----
 src/g_shared/a_decals.cpp        |  2 --
 src/p_3dfloors.cpp               |  4 ----
 src/p_3dfloors.h                 | 38 --------------------------------
 src/p_enemy.cpp                  |  2 --
 src/p_map.cpp                    | 32 ---------------------------
 src/p_mobj.cpp                   | 16 --------------
 src/p_setup.cpp                  |  2 --
 src/p_sight.cpp                  |  6 -----
 src/p_trace.cpp                  | 10 ---------
 11 files changed, 124 deletions(-)

diff --git a/src/am_map.cpp b/src/am_map.cpp
index 0133a2493a..fdbacd34f9 100644
--- a/src/am_map.cpp
+++ b/src/am_map.cpp
@@ -1935,8 +1935,6 @@ void AM_drawSubsectors()
 		scalex = sec->GetXScale(sector_t::floor);
 		scaley = sec->GetYScale(sector_t::floor);
 
-#ifdef _3DFLOORS
-
 		if (sec->e->XFloor.ffloors.Size())
 		{
 			secplane_t *floorplane = &sec->floorplane;
@@ -1997,7 +1995,6 @@ void AM_drawSubsectors()
 			floorlight = *light->p_lightlevel;
 			colormap = light->extra_colormap;
 		}
-#endif
 		if (maptex == skyflatnum)
 		{
 			continue;
@@ -2153,8 +2150,6 @@ void AM_showSS()
 	}
 }
 
-#ifdef _3DFLOORS
-
 //=============================================================================
 //
 // Determines if a 3D floor boundary should be drawn
@@ -2214,7 +2209,6 @@ bool AM_Check3DFloors(line_t *line)
 	// All 3D floors could be matched so let's not draw a boundary.
 	return false;
 }
-#endif
 
 //=============================================================================
 //
@@ -2345,12 +2339,10 @@ void AM_drawWalls (bool allmap)
 			{
 				AM_drawMline(&l, AMColors.CDWallColor); // ceiling level change
 			}
-#ifdef _3DFLOORS
 			else if (AM_Check3DFloors(&lines[i]))
 			{
 				AM_drawMline(&l, AMColors.EFWallColor); // Extra floor border
 			}
-#endif
 			else if (am_cheat > 0 && am_cheat < 4)
 			{
 				AM_drawMline(&l, AMColors.TSWallColor);
diff --git a/src/g_heretic/a_hereticweaps.cpp b/src/g_heretic/a_hereticweaps.cpp
index 17c9621d59..afc4f60079 100644
--- a/src/g_heretic/a_hereticweaps.cpp
+++ b/src/g_heretic/a_hereticweaps.cpp
@@ -1046,7 +1046,6 @@ DEFINE_ACTION_FUNCTION(AActor, A_SkullRodStorm)
 	x = self->x + ((pr_storm()&127) - 64) * FRACUNIT;
 	y = self->y + ((pr_storm()&127) - 64) * FRACUNIT;
 	mo = Spawn<ARainPillar> (x, y, ONCEILINGZ, ALLOW_REPLACE);
-#ifdef _3DFLOORS
 	// We used bouncecount to store the 3D floor index in A_HideInCeiling
 	if (!mo) return;
 	fixed_t newz;
@@ -1058,7 +1057,6 @@ DEFINE_ACTION_FUNCTION(AActor, A_SkullRodStorm)
 	int moceiling = P_Find3DFloor(NULL, x, y, newz, false, false, newz);
 	if (moceiling >= 0)
 		mo->z = newz - mo->height;
-#endif
 	mo->Translation = multiplayer ?
 		TRANSLATION(TRANSLATION_PlayersExtra,self->special2) : 0;
 	mo->target = self->target;
@@ -1098,7 +1096,6 @@ DEFINE_ACTION_FUNCTION(AActor, A_RainImpact)
 
 DEFINE_ACTION_FUNCTION(AActor, A_HideInCeiling)
 {
-#ifdef _3DFLOORS
 	// We use bouncecount to store the 3D floor index
 	fixed_t foo;
 	for (unsigned int i=0; i< self->Sector->e->XFloor.ffloors.Size(); i++)
@@ -1114,7 +1111,6 @@ DEFINE_ACTION_FUNCTION(AActor, A_HideInCeiling)
 		}
 	}
 	self->bouncecount = -1;
-#endif
 	self->z = self->ceilingz + 4*FRACUNIT;
 }
 
diff --git a/src/g_shared/a_decals.cpp b/src/g_shared/a_decals.cpp
index 576ff6a5cd..29fcbf8cbc 100644
--- a/src/g_shared/a_decals.cpp
+++ b/src/g_shared/a_decals.cpp
@@ -272,7 +272,6 @@ FTextureID DBaseDecal::StickToWall (side_t *wall, fixed_t x, fixed_t y, F3DFloor
 			Z -= back->GetPlaneTexZ(sector_t::ceiling);
 		tex = wall->GetTexture(side_t::top);
 	}
-#ifdef _3DFLOORS
 	else if (ffloor) // this is a 3d-floor segment - do this only if we know which one!
 	{
 		Sector=ffloor->model;
@@ -295,7 +294,6 @@ FTextureID DBaseDecal::StickToWall (side_t *wall, fixed_t x, fixed_t y, F3DFloor
 			tex = ffloor->master->sidedef[0]->GetTexture(side_t::mid);
 		}
 	}
-#endif
 	else return FNullTextureID();
 	CalcFracPos (wall, x, y);
 
diff --git a/src/p_3dfloors.cpp b/src/p_3dfloors.cpp
index 8091ffb92c..5b29959cbe 100644
--- a/src/p_3dfloors.cpp
+++ b/src/p_3dfloors.cpp
@@ -44,8 +44,6 @@
 #include "p_terrain.h"
 #include "r_data/colormaps.h"
 
-#ifdef _3DFLOORS
-
 //==========================================================================
 //
 //  3D Floors
@@ -959,8 +957,6 @@ int	P_Find3DFloor(sector_t * sec, fixed_t x, fixed_t y, fixed_t z, bool above, b
 	return -1;
 }
 
-#endif
-
 #include "c_dispatch.h"
 
 
diff --git a/src/p_3dfloors.h b/src/p_3dfloors.h
index 8d42560af0..8abd23f032 100644
--- a/src/p_3dfloors.h
+++ b/src/p_3dfloors.h
@@ -4,8 +4,6 @@
 
 #define CenterSpot(sec) (vertex_t*)&(sec)->soundorg[0]
 
-#define _3DFLOORS
-
 // 3D floor flags. Most are the same as in Legacy but I added some for EDGE's and Vavoom's features as well.
 typedef enum
 {
@@ -60,8 +58,6 @@ enum
 	VC_COLORMASK = 0x00FFFFFF,
 };
 
-#ifdef _3DFLOORS
-
 
 struct secplane_t;
 struct FDynamicColormap;
@@ -149,39 +145,5 @@ void P_LineOpening_XFloors (FLineOpening &open, AActor * thing, const line_t *li
 secplane_t P_FindFloorPlane(sector_t * sector, fixed_t x, fixed_t y, fixed_t z);
 int	P_Find3DFloor(sector_t * sec, fixed_t x, fixed_t y, fixed_t z, bool above, bool floor, fixed_t &cmpz);
 							
-#else
-
-// Dummy definitions for disabled 3D floor code
-
-struct F3DFloor
-{
-	int dummy;
-};
-
-struct lightlist_t
-{
-	int dummy;
-};
-
-class player_s;
-inline void P_PlayerOnSpecial3DFloor(player_t* player) {}
-
-inline void P_Get3DFloorAndCeiling(AActor * thing, sector_t * sector, fixed_t * floorz, fixed_t * ceilingz, int * floorpic) {}
-inline bool P_CheckFor3DFloorHit(AActor * mo) { return false; }
-inline bool P_CheckFor3DCeilingHit(AActor * mo) { return false; }
-inline void P_Recalculate3DFloors(sector_t *) {}
-inline void P_RecalculateAttached3DFloors(sector_t * sec) {}
-inline lightlist_t * P_GetPlaneLight(sector_t * , secplane_t * plane, bool underside) { return NULL; }
-inline void P_Spawn3DFloors( void ) {}
-
-struct FLineOpening;
-
-inline void P_LineOpening_XFloors (FLineOpening &open, AActor * thing, const line_t *linedef, 
-							fixed_t x, fixed_t y, fixed_t refx, fixed_t refy, bool restrict) {}
-
-//secplane_t P_FindFloorPlane(sector_t * sector, fixed_t x, fixed_t y, fixed_t z){return sector->floorplane;}
-
-#endif
-
 
 #endif
\ No newline at end of file
diff --git a/src/p_enemy.cpp b/src/p_enemy.cpp
index 3e17a85f35..10c4704d44 100644
--- a/src/p_enemy.cpp
+++ b/src/p_enemy.cpp
@@ -2548,7 +2548,6 @@ static bool P_CheckForResurrection(AActor *self, bool usevilestates)
 				if (abs(corpsehit->x - viletryx) > maxdist ||
 					abs(corpsehit->y - viletryy) > maxdist)
 					continue;			// not actually touching
-#ifdef _3DFLOORS
 				// Let's check if there are floors in between the archvile and its target
 				sector_t *vilesec = self->Sector;
 				sector_t *corpsec = corpsehit->Sector;
@@ -2566,7 +2565,6 @@ static bool P_CheckForResurrection(AActor *self, bool usevilestates)
 							continue;
 					}
 				}
-#endif
 
 				corpsehit->velx = corpsehit->vely = 0;
 				// [RH] Check against real height and radius
diff --git a/src/p_map.cpp b/src/p_map.cpp
index 3676225b12..197525aa47 100644
--- a/src/p_map.cpp
+++ b/src/p_map.cpp
@@ -249,7 +249,6 @@ void P_GetFloorCeilingZ(FCheckPosition &tmf, int flags)
 		sec = tmf.thing->Sector;
 	}
 
-#ifdef _3DFLOORS
 	for (unsigned int i = 0; i<sec->e->XFloor.ffloors.Size(); i++)
 	{
 		F3DFloor*  rover = sec->e->XFloor.ffloors[i];
@@ -273,7 +272,6 @@ void P_GetFloorCeilingZ(FCheckPosition &tmf, int flags)
 			tmf.ceilingpic = *rover->bottom.texture;
 		}
 	}
-#endif
 }
 
 //==========================================================================
@@ -575,7 +573,6 @@ int P_GetFriction(const AActor *mo, int *frictionfactor)
 		friction = secfriction(mo->Sector);
 		movefactor = secmovefac(mo->Sector) >> 1;
 
-#ifdef _3DFLOORS
 			// Check 3D floors -- might be the source of the waterlevel
 			for (unsigned i = 0; i < mo->Sector->e->XFloor.ffloors.Size(); i++)
 			{
@@ -594,7 +591,6 @@ int P_GetFriction(const AActor *mo, int *frictionfactor)
 					movefactor = secmovefac(rover->model) >> 1;
 				}
 			}
-#endif
 	}
 	else if (var_friction && !(mo->flags & (MF_NOCLIP | MF_NOGRAVITY)))
 	{	// When the object is straddling sectors with the same
@@ -605,7 +601,6 @@ int P_GetFriction(const AActor *mo, int *frictionfactor)
 		{
 			sec = m->m_sector;
 
-#ifdef _3DFLOORS
 			// 3D floors must be checked, too
 			for (unsigned i = 0; i < sec->e->XFloor.ffloors.Size(); i++)
 			{
@@ -634,7 +629,6 @@ int P_GetFriction(const AActor *mo, int *frictionfactor)
 					movefactor = secmovefac(rover->model);
 				}
 			}
-#endif
 
 			if (!(sec->special & FRICTION_MASK) &&
 				Terrains[TerrainTypes[sec->GetTexture(sector_t::floor)]].Friction == 0)
@@ -789,14 +783,9 @@ bool PIT_CheckLine(line_t *ld, const FBoundingBox &box, FCheckPosition &tm)
 		!(tm.thing->flags & (MF_NOGRAVITY | MF_NOCLIP)))
 	{
 		secplane_t frontplane, backplane;
-#ifdef _3DFLOORS
 		// Check 3D floors as well
 		frontplane = P_FindFloorPlane(ld->frontsector, tm.thing->x, tm.thing->y, tm.thing->floorz);
 		backplane = P_FindFloorPlane(ld->backsector, tm.thing->x, tm.thing->y, tm.thing->floorz);
-#else
-		frontplane = ld->frontsector->floorplane;
-		backplane = ld->backsector->floorplane;
-#endif
 		if (frontplane.c < STEEPSLOPE || backplane.c < STEEPSLOPE)
 		{
 			const msecnode_t *node = tm.thing->touching_sectorlist;
@@ -1457,7 +1446,6 @@ bool P_CheckPosition(AActor *thing, fixed_t x, fixed_t y, FCheckPosition &tm, bo
 	//Added by MC: Fill the tmsector.
 	tm.sector = newsec;
 
-#ifdef _3DFLOORS
 	//Check 3D floors
 	if (!thing->IsNoClip2() && newsec->e->XFloor.ffloors.Size())
 	{
@@ -1489,7 +1477,6 @@ bool P_CheckPosition(AActor *thing, fixed_t x, fixed_t y, FCheckPosition &tm, bo
 			}
 		}
 	}
-#endif
 
 	validcount++;
 	spechit.Clear();
@@ -1806,7 +1793,6 @@ static void CheckForPushSpecial(line_t *line, int side, AActor *mobj, bool windo
 				fzb <= mobj->z && bzb <= mobj->z)
 			{
 				// we must also check if some 3D floor in the backsector may be blocking
-#ifdef _3DFLOORS
 				for (unsigned int i = 0; i<line->backsector->e->XFloor.ffloors.Size(); i++)
 				{
 					F3DFloor* rover = line->backsector->e->XFloor.ffloors[i];
@@ -1821,7 +1807,6 @@ static void CheckForPushSpecial(line_t *line, int side, AActor *mobj, bool windo
 						goto isblocking;
 					}
 				}
-#endif
 				return;
 			}
 		}
@@ -2746,7 +2731,6 @@ const secplane_t * P_CheckSlopeWalk(AActor *actor, fixed_t &xmove, fixed_t &ymov
 	const secplane_t *plane = &actor->floorsector->floorplane;
 	fixed_t planezhere = plane->ZatPoint(actor->x, actor->y);
 
-#ifdef _3DFLOORS
 	for (unsigned int i = 0; i<actor->floorsector->e->XFloor.ffloors.Size(); i++)
 	{
 		F3DFloor * rover = actor->floorsector->e->XFloor.ffloors[i];
@@ -2781,7 +2765,6 @@ const secplane_t * P_CheckSlopeWalk(AActor *actor, fixed_t &xmove, fixed_t &ymov
 			}
 		}
 	}
-#endif
 
 	if (actor->floorsector != actor->Sector)
 	{
@@ -3159,7 +3142,6 @@ struct aim_t
 	AActor *		thing_friend, *thing_other;
 	angle_t			pitch_friend, pitch_other;
 	int				flags;
-#ifdef _3DFLOORS
 	sector_t *		lastsector;
 	secplane_t *	lastfloorplane;
 	secplane_t *	lastceilingplane;
@@ -3167,13 +3149,11 @@ struct aim_t
 	bool			crossedffloors;
 
 	bool AimTraverse3DFloors(const divline_t &trace, intercept_t * in);
-#endif
 
 	void AimTraverse(fixed_t startx, fixed_t starty, fixed_t endx, fixed_t endy, AActor *target = NULL);
 
 };
 
-#ifdef _3DFLOORS
 //============================================================================
 //
 // AimTraverse3DFloors
@@ -3275,7 +3255,6 @@ bool aim_t::AimTraverse3DFloors(const divline_t &trace, intercept_t * in)
 	lastfloorplane = nextbottomplane;
 	return true;
 }
-#endif
 
 //============================================================================
 //
@@ -3328,9 +3307,7 @@ void aim_t::AimTraverse(fixed_t startx, fixed_t starty, fixed_t endx, fixed_t en
 			if (toppitch >= bottompitch)
 				return;				// stop
 
-#ifdef _3DFLOORS
 			if (!AimTraverse3DFloors(it.Trace(), in)) return;
-#endif
 			continue;					// shot continues
 		}
 
@@ -3369,7 +3346,6 @@ void aim_t::AimTraverse(fixed_t startx, fixed_t starty, fixed_t endx, fixed_t en
 			continue;
 		}
 
-#ifdef _3DFLOORS
 		// we must do one last check whether the trace has crossed a 3D floor
 		if (lastsector == th->Sector && th->Sector->e->XFloor.ffloors.Size())
 		{
@@ -3394,7 +3370,6 @@ void aim_t::AimTraverse(fixed_t startx, fixed_t starty, fixed_t endx, fixed_t en
 				}
 			}
 		}
-#endif
 
 		// check angles to see if the thing can be aimed at
 
@@ -3408,7 +3383,6 @@ void aim_t::AimTraverse(fixed_t startx, fixed_t starty, fixed_t endx, fixed_t en
 		if (thingbottompitch < toppitch)
 			continue;					// shot under the thing
 
-#ifdef _3DFLOORS
 		if (crossedffloors)
 		{
 			// if 3D floors were in the way do an extra visibility check for safety
@@ -3427,7 +3401,6 @@ void aim_t::AimTraverse(fixed_t startx, fixed_t starty, fixed_t endx, fixed_t en
 				else return;
 			}
 		}
-#endif
 
 		// this thing can be hit!
 		if (thingtoppitch < toppitch)
@@ -3564,7 +3537,6 @@ fixed_t P_AimLineAttack(AActor *t1, angle_t angle, fixed_t distance, AActor **pL
 	// Information for tracking crossed 3D floors
 	aim.aimpitch = t1->pitch;
 
-#ifdef _3DFLOORS
 	aim.crossedffloors = t1->Sector->e->XFloor.ffloors.Size() != 0;
 	aim.lastsector = t1->Sector;
 	aim.lastfloorplane = aim.lastceilingplane = NULL;
@@ -3580,7 +3552,6 @@ fixed_t P_AimLineAttack(AActor *t1, angle_t angle, fixed_t distance, AActor **pL
 		bottomz = rover->top.plane->ZatPoint(t1->x, t1->y);
 		if (bottomz <= t1->z) aim.lastfloorplane = rover->top.plane;
 	}
-#endif
 
 	aim.AimTraverse(t1->x, t1->y, x2, y2, target);
 
@@ -5456,7 +5427,6 @@ bool P_ChangeSector(sector_t *sector, int crunch, int amt, int floorOrCeil, bool
 	cpos.movemidtex = false;
 	cpos.sector = sector;
 
-#ifdef _3DFLOORS
 	// Also process all sectors that have 3D floors transferred from the
 	// changed sector.
 	if (sector->e->XFloor.attached.Size())
@@ -5504,8 +5474,6 @@ bool P_ChangeSector(sector_t *sector, int crunch, int amt, int floorOrCeil, bool
 		}
 	}
 	P_Recalculate3DFloors(sector);			// Must recalculate the 3d floor and light lists
-#endif
-
 
 	// [RH] Use different functions for the four different types of sector
 	// movement.
diff --git a/src/p_mobj.cpp b/src/p_mobj.cpp
index b0fc0d08ed..267e71bb9a 100644
--- a/src/p_mobj.cpp
+++ b/src/p_mobj.cpp
@@ -1316,7 +1316,6 @@ void P_ExplodeMissile (AActor *mo, line_t *line, AActor *target)
 					z = mo->z;
 
 					F3DFloor * ffloor=NULL;
-#ifdef _3DFLOORS
 					if (line->sidedef[side^1] != NULL)
 					{
 						sector_t * backsector = line->sidedef[side^1]->sector;
@@ -1336,7 +1335,6 @@ void P_ExplodeMissile (AActor *mo, line_t *line, AActor *target)
 							}
 						}
 					}
-#endif
 
 					DImpactDecal::StaticCreate (base->GetDecal (),
 						x, y, z, line->sidedef[side], ffloor);
@@ -2164,7 +2162,6 @@ explode:
 			{
 				if (mo->dropoffz != mo->floorz) // 3DMidtex or other special cases that must be excluded
 				{
-#ifdef _3DFLOORS
 					unsigned i;
 					for(i=0;i<mo->Sector->e->XFloor.ffloors.Size();i++)
 					{
@@ -2175,7 +2172,6 @@ explode:
 						if (rover->flags&FF_SOLID && rover->top.plane->ZatPoint(mo->x,mo->y)==mo->floorz) break;
 					}
 					if (i==mo->Sector->e->XFloor.ffloors.Size()) 
-#endif
 						return oldfloorz;
 				}
 			}
@@ -3567,12 +3563,8 @@ void AActor::Tick ()
 		{
 			secplane_t floorplane;
 
-#ifdef _3DFLOORS
 			// Check 3D floors as well
 			floorplane = P_FindFloorPlane(floorsector, x, y, floorz);
-#else
-			floorplane = floorsector->floorplane;
-#endif
 
 			if (floorplane.c < STEEPSLOPE &&
 				floorplane.ZatPoint (x, y) <= floorz)
@@ -3889,7 +3881,6 @@ bool AActor::UpdateWaterLevel (fixed_t oldz, bool dosplash)
 				reset = true;
 			}
 		}
-#ifdef _3DFLOORS
 		else
 		{
 			// Check 3D floors as well!
@@ -3923,7 +3914,6 @@ bool AActor::UpdateWaterLevel (fixed_t oldz, bool dosplash)
 				break;
 			}
 		}
-#endif
 	}
 		
 	// some additional checks to make deep sectors like Boom's splash without setting
@@ -5371,7 +5361,6 @@ bool P_HitWater (AActor * thing, sector_t * sec, fixed_t x, fixed_t y, fixed_t z
 	}
 #endif
 
-#ifdef _3DFLOORS
 	for(unsigned int i=0;i<sec->e->XFloor.ffloors.Size();i++)
 	{		
 		F3DFloor * rover = sec->e->XFloor.ffloors[i];
@@ -5388,7 +5377,6 @@ bool P_HitWater (AActor * thing, sector_t * sec, fixed_t x, fixed_t y, fixed_t z
 		planez = rover->bottom.plane->ZatPoint(x, y);
 		if (planez < z && !(planez < thing->floorz)) return false;
 	}
-#endif
 	hsec = sec->GetHeightSec();
 	if (hsec == NULL || !(hsec->MoreFlags & SECF_CLIPFAKEPLANES))
 	{
@@ -5398,9 +5386,7 @@ bool P_HitWater (AActor * thing, sector_t * sec, fixed_t x, fixed_t y, fixed_t z
 	{
 		terrainnum = TerrainTypes[hsec->GetTexture(sector_t::floor)];
 	}
-#ifdef _3DFLOORS
 foundone:
-#endif
 
 	int splashnum = Terrains[terrainnum].Splash;
 	bool smallsplash = false;
@@ -5503,7 +5489,6 @@ bool P_HitFloor (AActor *thing)
 			break;
 		}
 
-#ifdef _3DFLOORS
 		// Check 3D floors
 		for(unsigned int i=0;i<m->m_sector->e->XFloor.ffloors.Size();i++)
 		{		
@@ -5517,7 +5502,6 @@ bool P_HitFloor (AActor *thing)
 				}
 			}
 		}
-#endif
 	}
 	if (m == NULL || m->m_sector->GetHeightSec() != NULL)
 	{ 
diff --git a/src/p_setup.cpp b/src/p_setup.cpp
index fb6b34b53d..14b19348e6 100644
--- a/src/p_setup.cpp
+++ b/src/p_setup.cpp
@@ -2519,7 +2519,6 @@ void P_ProcessSideTextures(bool checktranmap, side_t *sd, sector_t *sec, intmaps
 		}
 		break;
 
-#ifdef _3DFLOORS
 	case Sector_Set3DFloor:
 		if (msd->toptexture[0]=='#')
 		{
@@ -2534,7 +2533,6 @@ void P_ProcessSideTextures(bool checktranmap, side_t *sd, sector_t *sec, intmaps
 		SetTexture(sd, side_t::mid, msd->midtexture, missingtex);
 		SetTexture(sd, side_t::bottom, msd->bottomtexture, missingtex);
 		break;
-#endif
 
 	case TranslucentLine:	// killough 4/11/98: apply translucency to 2s normal texture
 		if (checktranmap)
diff --git a/src/p_sight.cpp b/src/p_sight.cpp
index ef4dfacd0e..135698b8bc 100644
--- a/src/p_sight.cpp
+++ b/src/p_sight.cpp
@@ -127,7 +127,6 @@ bool SightCheck::PTR_SightTraverse (intercept_t *in)
 	if (topslope <= bottomslope)
 		return false;		// stop
 
-#ifdef _3DFLOORS
 	// now handle 3D-floors
 	if(li->frontsector->e->XFloor.ffloors.Size() || li->backsector->e->XFloor.ffloors.Size())
 	{
@@ -219,7 +218,6 @@ bool SightCheck::PTR_SightTraverse (intercept_t *in)
 
 	lastztop= FixedMul (topslope, in->frac) + sightzstart;
 	lastzbottom= FixedMul (bottomslope, in->frac) + sightzstart;
-#endif
 
 	return true;			// keep going
 }
@@ -401,7 +399,6 @@ bool SightCheck::P_SightTraverseIntercepts ()
 		}
 	}
 
-#ifdef _3DFLOORS
 	if (lastsector==seeingthing->Sector && lastsector->e->XFloor.ffloors.Size())
 	{
 		// we must do one last check whether the trace has crossed a 3D floor in the last sector
@@ -424,7 +421,6 @@ bool SightCheck::P_SightTraverseIntercepts ()
 		}
 	
 	}
-#endif
 	return true;			// everything was traversed
 }
 
@@ -453,7 +449,6 @@ bool SightCheck::P_SightPathTraverse (fixed_t x1, fixed_t y1, fixed_t x2, fixed_
 	validcount++;
 	intercepts.Clear ();
 
-#ifdef _3DFLOORS
 	// for FF_SEETHROUGH the following rule applies:
 	// If the viewer is in an area without FF_SEETHROUGH he can only see into areas without this flag
 	// If the viewer is in an area with FF_SEETHROUGH he can only see into areas with this flag
@@ -472,7 +467,6 @@ bool SightCheck::P_SightPathTraverse (fixed_t x1, fixed_t y1, fixed_t x2, fixed_
 			break;
 		}
 	}
-#endif
 
 	if ( ((x1-bmaporgx)&(MAPBLOCKSIZE-1)) == 0)
 		x1 += FRACUNIT;							// don't side exactly on a line
diff --git a/src/p_trace.cpp b/src/p_trace.cpp
index 26852269ab..07d23294b8 100644
--- a/src/p_trace.cpp
+++ b/src/p_trace.cpp
@@ -104,7 +104,6 @@ bool Trace (fixed_t x, fixed_t y, fixed_t z, sector_t *sector,
 	res.Crossed3DWater = NULL;
 	*/
 
-#ifdef _3DFLOORS
 	// Do a 3D floor check in the starting sector
 	TDeletingArray<F3DFloor*> &ff = sector->e->XFloor.ffloors;
 
@@ -174,7 +173,6 @@ bool Trace (fixed_t x, fixed_t y, fixed_t z, sector_t *sector,
 			}
 		}
 	}
-#endif
 
 	// check for overflows and clip if necessary
 	SQWORD xd = (SQWORD)x + ( ( SQWORD(vx) * SQWORD(maxDist) )>>16);
@@ -257,7 +255,6 @@ bool FTraceInfo::TraceTraverse (int ptflags)
 		fixed_t dist;
 
 		// Deal with splashes in 3D floors
-#ifdef _3DFLOORS
 		if (CurSector->e->XFloor.ffloors.Size())
 		{
 			for(unsigned int i=0;i<CurSector->e->XFloor.ffloors.Size();i++)
@@ -274,7 +271,6 @@ bool FTraceInfo::TraceTraverse (int ptflags)
 				}
 			}
 		}
-#endif
 
 		if (in->isaline)
 		{
@@ -381,7 +377,6 @@ bool FTraceInfo::TraceTraverse (int ptflags)
 			}
 			else
 			{ 	// made it past the wall
-#ifdef _3DFLOORS
 				// check for 3D floors first
 				if (entersector->e->XFloor.ffloors.Size())
 				{
@@ -435,9 +430,6 @@ bool FTraceInfo::TraceTraverse (int ptflags)
 						}
 					}
 				}
-#endif
-
-
 
 				Results->HitType = TRACE_HitNone;
 				if (TraceFlags & TRACE_PCross)
@@ -450,9 +442,7 @@ bool FTraceInfo::TraceTraverse (int ptflags)
 					P_ActivateLine (in->d.line, IgnoreThis, lineside, SPAC_Impact);
 				}
 			}
-#ifdef _3DFLOORS
 cont:
-#endif
 
 			if (Results->HitType != TRACE_HitNone)
 			{

From 22005697931c89ea3406999e87c2430ec7227b9c Mon Sep 17 00:00:00 2001
From: "alexey.lysiuk" <alexey.lysiuk@gmail.com>
Date: Sun, 7 Jun 2015 11:31:53 +0300
Subject: [PATCH 10/22] Fixed build on OS X without FMODEx

---
 src/CMakeLists.txt | 26 ++++++++++++++------------
 1 file changed, 14 insertions(+), 12 deletions(-)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index af1f04f49f..782e4bac04 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1242,18 +1242,20 @@ if( APPLE )
 		LINK_FLAGS "-framework Carbon -framework Cocoa -framework IOKit -framework OpenGL"
 		MACOSX_BUNDLE_INFO_PLIST "${CMAKE_CURRENT_SOURCE_DIR}/posix/osx/zdoom-info.plist" )
 
-	# Fix fmod link so that it can be found in the app bundle.
-	find_program( OTOOL otool HINTS "/usr/bin" "${OSX_DEVELOPER_ROOT}/usr/bin" )
-	find_program( INSTALL_NAME_TOOL install_name_tool HINTS "/usr/bin" "${OSX_DEVELOPER_ROOT}/usr/bin" )
-	execute_process( COMMAND "${OTOOL}" -L "${FMOD_LIBRARY}"
-		COMMAND grep "libfmodex.dylib (compat"
-		COMMAND head -n1
-		COMMAND awk "{print $1}"
-		OUTPUT_VARIABLE FMOD_LINK
-		OUTPUT_STRIP_TRAILING_WHITESPACE )
-	add_custom_command( TARGET zdoom POST_BUILD
-		COMMAND "${INSTALL_NAME_TOOL}" -change "${FMOD_LINK}" @executable_path/../Frameworks/libfmodex.dylib "$<TARGET_FILE:zdoom>"
-		COMMENT "Relinking FMOD Ex" )
+	if( NOT NO_FMOD )
+		# Fix fmod link so that it can be found in the app bundle.
+		find_program( OTOOL otool HINTS "/usr/bin" "${OSX_DEVELOPER_ROOT}/usr/bin" )
+		find_program( INSTALL_NAME_TOOL install_name_tool HINTS "/usr/bin" "${OSX_DEVELOPER_ROOT}/usr/bin" )
+		execute_process( COMMAND "${OTOOL}" -L "${FMOD_LIBRARY}"
+			COMMAND grep "libfmodex.dylib (compat"
+			COMMAND head -n1
+			COMMAND awk "{print $1}"
+			OUTPUT_VARIABLE FMOD_LINK
+			OUTPUT_STRIP_TRAILING_WHITESPACE )
+		add_custom_command( TARGET zdoom POST_BUILD
+			COMMAND "${INSTALL_NAME_TOOL}" -change "${FMOD_LINK}" @executable_path/../Frameworks/libfmodex.dylib "$<TARGET_FILE:zdoom>"
+			COMMENT "Relinking FMOD Ex" )
+	endif( NOT NO_FMOD )
 endif( APPLE )
 
 source_group("Assembly Files\\ia32" REGULAR_EXPRESSION "^${CMAKE_CURRENT_SOURCE_DIR}/asm_ia32/.+")

From 3b2126ba951be310d9cdef2a6053a5d2a314784b Mon Sep 17 00:00:00 2001
From: "Eevee (Alex Munroe)" <eevee.git@veekun.com>
Date: Tue, 9 Jun 2015 13:20:10 -0700
Subject: [PATCH 11/22] Don't allow pressing a checkswitchrange switch that's
 in the floor.

---
 src/p_switch.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/p_switch.cpp b/src/p_switch.cpp
index 5aeff7b469..6ea04593f6 100644
--- a/src/p_switch.cpp
+++ b/src/p_switch.cpp
@@ -181,7 +181,7 @@ bool P_CheckSwitchRange(AActor *user, line_t *line, int sideno)
 	}
 	else if ((TexMan.FindSwitch(side->GetTexture(side_t::bottom))) != NULL)
 	{
-		return (user->z <= open.bottom);
+		return (user->z < open.bottom);
 	}
 	else if ((flags & ML_3DMIDTEX) || (TexMan.FindSwitch(side->GetTexture(side_t::mid))) != NULL)
 	{
@@ -194,7 +194,7 @@ bool P_CheckSwitchRange(AActor *user, line_t *line, int sideno)
 	else
 	{
 		// no switch found. Check whether the player can touch either top or bottom texture
-		return (user->z + user->height >= open.top) || (user->z <= open.bottom);
+		return (user->z + user->height >= open.top) || (user->z < open.bottom);
 	}
 }
 

From 911b35370e28af78002cd28268a24e793895ede8 Mon Sep 17 00:00:00 2001
From: "Eevee (Alex Munroe)" <eevee.git@veekun.com>
Date: Tue, 9 Jun 2015 13:41:48 -0700
Subject: [PATCH 12/22] Let's go wild and do it for the ceiling, too.

---
 src/p_switch.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/p_switch.cpp b/src/p_switch.cpp
index 6ea04593f6..1ca4654b57 100644
--- a/src/p_switch.cpp
+++ b/src/p_switch.cpp
@@ -177,7 +177,7 @@ bool P_CheckSwitchRange(AActor *user, line_t *line, int sideno)
 
 	if ((TexMan.FindSwitch(side->GetTexture(side_t::top))) != NULL)
 	{
-		return (user->z + user->height >= open.top);
+		return (user->z + user->height > open.top);
 	}
 	else if ((TexMan.FindSwitch(side->GetTexture(side_t::bottom))) != NULL)
 	{
@@ -194,7 +194,7 @@ bool P_CheckSwitchRange(AActor *user, line_t *line, int sideno)
 	else
 	{
 		// no switch found. Check whether the player can touch either top or bottom texture
-		return (user->z + user->height >= open.top) || (user->z < open.bottom);
+		return (user->z + user->height > open.top) || (user->z < open.bottom);
 	}
 }
 

From 76c401a41ec655e83f0b375b1c61787fa8b13446 Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <c.oelckers@zdoom.fake>
Date: Thu, 18 Jun 2015 10:20:04 +0200
Subject: [PATCH 13/22] - added 'nopushwindowcheck' for Hexen's MAP30 which
 abuses a glitch with a 'projectile impact' line on a two-sided wall.

---
 wadsrc/static/compatibility.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/wadsrc/static/compatibility.txt b/wadsrc/static/compatibility.txt
index 3a675f275a..26f43bb253 100644
--- a/wadsrc/static/compatibility.txt
+++ b/wadsrc/static/compatibility.txt
@@ -386,6 +386,7 @@ D62DCA9EC226DE49108D5DD9271F7631 // Cheogsh 2 map04
 	setthingz 1649 528
 }
 
+E89CCC7E155F1032F693359CC219BE6C // hexen.wad map30
 B9DFF13207EACAC675C71D82624D0007 // XtheaterIII map01
 {
 	DisablePushWindowCheck

From 85449a6b8a330b48dfa088a93f4242987ade19fd Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <c.oelckers@zdoom.fake>
Date: Sun, 21 Jun 2015 13:04:47 +0200
Subject: [PATCH 14/22] - fixed: A_BFGSpray checked the spray actor's class for
 MTHRUSPECIES, not the actual shooter.

---
 src/g_doom/a_doomweaps.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/g_doom/a_doomweaps.cpp b/src/g_doom/a_doomweaps.cpp
index 6dbf3d1ec5..899f1f7d5b 100644
--- a/src/g_doom/a_doomweaps.cpp
+++ b/src/g_doom/a_doomweaps.cpp
@@ -624,7 +624,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_BFGSpray)
 
 			if (spray != NULL)
 			{
-				if (spray->flags6 & MF6_MTHRUSPECIES && spray->GetSpecies() == linetarget->GetSpecies())
+				if (spray->flags6 & MF6_MTHRUSPECIES && self->target->GetSpecies() == linetarget->GetSpecies())
 				{
 					spray->Destroy(); // [MC] Remove it because technically, the spray isn't trying to "hit" them.
 					continue;

From 8670b7ecf79a91cd4d64025bb11393b8b931afb1 Mon Sep 17 00:00:00 2001
From: Edward Richardson <Edward850@crantime.org>
Date: Thu, 25 Jun 2015 12:53:46 +1200
Subject: [PATCH 15/22] Use puff decal with MF7_FORCEDECAL

---
 src/p_map.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/p_map.cpp b/src/p_map.cpp
index 197525aa47..26312d9226 100644
--- a/src/p_map.cpp
+++ b/src/p_map.cpp
@@ -4275,11 +4275,16 @@ void P_RailAttack(AActor *source, int damage, int offset_xy, fixed_t offset_z, i
 	// Spawn a decal or puff at the point where the trace ended.
 	if (trace.HitType == TRACE_HitWall)
 	{
-		SpawnShootDecal(source, trace);
+		AActor* puff = NULL;
+
 		if (puffclass != NULL && puffDefaults->flags3 & MF3_ALWAYSPUFF)
 		{
-			P_SpawnPuff(source, puffclass, trace.X, trace.Y, trace.Z, (source->angle + angleoffset) - ANG90, 1, 0);
+			puff = P_SpawnPuff(source, puffclass, trace.X, trace.Y, trace.Z, (source->angle + angleoffset) - ANG90, 1, 0);
 		}
+		if (puff != NULL && puffDefaults->flags7 & MF7_FORCEDECAL && puff->DecalGenerator)
+			SpawnShootDecal(puff, trace);
+		else
+			SpawnShootDecal(source, trace);
 
 	}
 	if (thepuff != NULL)

From 2a69ae2a434e00c2c5543ecd9b37dd3b5cb04aba Mon Sep 17 00:00:00 2001
From: Edward Richardson <Edward850@crantime.org>
Date: Thu, 25 Jun 2015 13:57:36 +1200
Subject: [PATCH 16/22] Change all float calcs in rails to doubles

---
 src/p_effect.cpp                  | 50 +++++++++++++++----------------
 src/p_effect.h                    |  2 +-
 src/p_enemy.cpp                   |  2 +-
 src/p_local.h                     |  2 +-
 src/p_map.cpp                     | 10 +++----
 src/thingdef/thingdef_codeptr.cpp | 14 ++++-----
 6 files changed, 40 insertions(+), 40 deletions(-)

diff --git a/src/p_effect.cpp b/src/p_effect.cpp
index 1b7ce0bc8c..db31295219 100644
--- a/src/p_effect.cpp
+++ b/src/p_effect.cpp
@@ -586,12 +586,12 @@ void P_DrawSplash2 (int count, fixed_t x, fixed_t y, fixed_t z, angle_t angle, i
 	}
 }
 
-void P_DrawRailTrail (AActor *source, const FVector3 &start, const FVector3 &end, int color1, int color2, float maxdiff, int flags, const PClass *spawnclass, angle_t angle, int duration, float sparsity, float drift, int SpiralOffset)
+void P_DrawRailTrail(AActor *source, const TVector3<double> &start, const TVector3<double> &end, int color1, int color2, double maxdiff, int flags, const PClass *spawnclass, angle_t angle, int duration, double sparsity, double drift, int SpiralOffset)
 {
 	double length, lengthsquared;
 	int steps, i;
-	FAngle deg;
-	FVector3 step, dir, pos, extend;
+	TAngle<double> deg;
+	TVector3<double> step, dir, pos, extend;
 	bool fullbright;
 
 	dir = end - start;
@@ -615,9 +615,9 @@ void P_DrawRailTrail (AActor *source, const FVector3 &start, const FVector3 &end
 			// The railgun's sound is special. It gets played from the
 			// point on the slug's trail that is closest to the hearing player.
 			AActor *mo = players[consoleplayer].camera;
-			FVector3 point;
+			TVector3<double> point;
 			double r;
-			float dirz;
+			double dirz;
 
 			if (abs(mo->x - FLOAT2FIXED(start.X)) < 20 * FRACUNIT
 				&& (mo->y - FLOAT2FIXED(start.Y)) < 20 * FRACUNIT)
@@ -630,7 +630,7 @@ void P_DrawRailTrail (AActor *source, const FVector3 &start, const FVector3 &end
 				// Only consider sound in 2D (for now, anyway)
 				// [BB] You have to divide by lengthsquared here, not multiply with it.
 
-				r = ((start.Y - FIXED2FLOAT(mo->y)) * (-dir.Y) - (start.X - FIXED2FLOAT(mo->x)) * (dir.X)) / lengthsquared;
+				r = ((start.Y - FIXED2DBL(mo->y)) * (-dir.Y) - (start.X - FIXED2DBL(mo->x)) * (dir.X)) / lengthsquared;
 				r = clamp<double>(r, 0., 1.);
 
 				dirz = dir.Z;
@@ -662,7 +662,7 @@ void P_DrawRailTrail (AActor *source, const FVector3 &start, const FVector3 &end
 			minelem = fabs(dir[i]);
 		}
 	}
-	FVector3 tempvec(0,0,0);
+	TVector3<double> tempvec(0, 0, 0);
 	tempvec[epos] = 1;
 	extend = tempvec - (dir | tempvec) * dir;
 	//
@@ -673,16 +673,16 @@ void P_DrawRailTrail (AActor *source, const FVector3 &start, const FVector3 &end
 	// Create the outer spiral.
 	if (color1 != -1 && (!r_rail_smartspiral || color2 == -1) && r_rail_spiralsparsity > 0 && (spawnclass == NULL))
 	{
-		FVector3 spiral_step = step * r_rail_spiralsparsity * sparsity;
+		TVector3<double> spiral_step = step * r_rail_spiralsparsity * sparsity;
 		int spiral_steps = (int)(steps * r_rail_spiralsparsity / sparsity);
 		
 		color1 = color1 == 0 ? -1 : ParticleColor(color1);
 		pos = start;
-		deg = FAngle(SpiralOffset);
+		deg = TAngle<double>(SpiralOffset);
 		for (i = spiral_steps; i; i--)
 		{
 			particle_t *p = NewParticle ();
-			FVector3 tempvec;
+			TVector3<double> tempvec;
 
 			if (!p)
 				return;
@@ -695,7 +695,7 @@ void P_DrawRailTrail (AActor *source, const FVector3 &start, const FVector3 &end
 			p->size = 3;
 			p->bright = fullbright;
 
-			tempvec = FMatrix3x3(dir, deg) * extend;
+			tempvec = TMatrix3x3<double>(dir, deg) * extend;
 			p->velx = FLOAT2FIXED(tempvec.X * drift)>>4;
 			p->vely = FLOAT2FIXED(tempvec.Y * drift)>>4;
 			p->velz = FLOAT2FIXED(tempvec.Z * drift)>>4;
@@ -704,7 +704,7 @@ void P_DrawRailTrail (AActor *source, const FVector3 &start, const FVector3 &end
 			p->y = FLOAT2FIXED(tempvec.Y);
 			p->z = FLOAT2FIXED(tempvec.Z);
 			pos += spiral_step;
-			deg += FAngle(r_rail_spiralsparsity * 14);
+			deg += TAngle<double>(r_rail_spiralsparsity * 14);
 
 			if (color1 == -1)
 			{
@@ -729,18 +729,18 @@ void P_DrawRailTrail (AActor *source, const FVector3 &start, const FVector3 &end
 	// Create the inner trail.
 	if (color2 != -1 && r_rail_trailsparsity > 0 && spawnclass == NULL)
 	{
-		FVector3 trail_step = step * r_rail_trailsparsity * sparsity;
+		TVector3<double> trail_step = step * r_rail_trailsparsity * sparsity;
 		int trail_steps = xs_FloorToInt(steps * r_rail_trailsparsity / sparsity);
 
 		color2 = color2 == 0 ? -1 : ParticleColor(color2);
-		FVector3 diff(0, 0, 0);
+		TVector3<double> diff(0, 0, 0);
 
 		pos = start;
 		for (i = trail_steps; i; i--)
 		{
 			// [XA] inner trail uses a different default duration (33).
 			int innerduration = (duration == 0) ? 33 : duration;
-			particle_t *p = JitterParticle (innerduration, drift);
+			particle_t *p = JitterParticle (innerduration, (float)drift);
 
 			if (!p)
 				return;
@@ -749,14 +749,14 @@ void P_DrawRailTrail (AActor *source, const FVector3 &start, const FVector3 &end
 			{
 				int rnd = M_Random ();
 				if (rnd & 1)
-					diff.X = clamp<float> (diff.X + ((rnd & 8) ? 1 : -1), -maxdiff, maxdiff);
+					diff.X = clamp<double>(diff.X + ((rnd & 8) ? 1 : -1), -maxdiff, maxdiff);
 				if (rnd & 2)
-					diff.Y = clamp<float> (diff.Y + ((rnd & 16) ? 1 : -1), -maxdiff, maxdiff);
+					diff.Y = clamp<double>(diff.Y + ((rnd & 16) ? 1 : -1), -maxdiff, maxdiff);
 				if (rnd & 4)
-					diff.Z = clamp<float> (diff.Z + ((rnd & 32) ? 1 : -1), -maxdiff, maxdiff);
+					diff.Z = clamp<double>(diff.Z + ((rnd & 32) ? 1 : -1), -maxdiff, maxdiff);
 			}
 
-			FVector3 postmp = pos + diff;
+			TVector3<double> postmp = pos + diff;
 
 			p->size = 2;
 			p->x = FLOAT2FIXED(postmp.X);
@@ -791,9 +791,9 @@ void P_DrawRailTrail (AActor *source, const FVector3 &start, const FVector3 &end
 		if (sparsity < 1)
 			sparsity = 32;
 
-		FVector3 trail_step = (step / 3) * sparsity;
+		TVector3<double> trail_step = (step / 3) * sparsity;
 		int trail_steps = (int)((steps * 3) / sparsity);
-		FVector3 diff(0, 0, 0);
+		TVector3<double> diff(0, 0, 0);
 
 		pos = start;
 		for (i = trail_steps; i; i--)
@@ -802,13 +802,13 @@ void P_DrawRailTrail (AActor *source, const FVector3 &start, const FVector3 &end
 			{
 				int rnd = pr_railtrail();
 				if (rnd & 1)
-					diff.X = clamp<float> (diff.X + ((rnd & 8) ? 1 : -1), -maxdiff, maxdiff);
+					diff.X = clamp<double>(diff.X + ((rnd & 8) ? 1 : -1), -maxdiff, maxdiff);
 				if (rnd & 2)
-					diff.Y = clamp<float> (diff.Y + ((rnd & 16) ? 1 : -1), -maxdiff, maxdiff);
+					diff.Y = clamp<double>(diff.Y + ((rnd & 16) ? 1 : -1), -maxdiff, maxdiff);
 				if (rnd & 4)
-					diff.Z = clamp<float> (diff.Z + ((rnd & 32) ? 1 : -1), -maxdiff, maxdiff);
+					diff.Z = clamp<double>(diff.Z + ((rnd & 32) ? 1 : -1), -maxdiff, maxdiff);
 			}			
-			FVector3 postmp = pos + diff;
+			TVector3<double> postmp = pos + diff;
 
 			AActor *thing = Spawn (spawnclass, FLOAT2FIXED(postmp.X), FLOAT2FIXED(postmp.Y), FLOAT2FIXED(postmp.Z), ALLOW_REPLACE);
 			if (thing)
diff --git a/src/p_effect.h b/src/p_effect.h
index 6ca9dfea9e..11116e8a3f 100644
--- a/src/p_effect.h
+++ b/src/p_effect.h
@@ -88,7 +88,7 @@ void P_RunEffects (void);
 
 void P_RunEffect (AActor *actor, int effects);
 
-void P_DrawRailTrail (AActor *source, const FVector3 &start, const FVector3 &end, int color1, int color2, float maxdiff = 0, int flags = 0, const PClass *spawnclass = NULL, angle_t angle = 0, int duration = 35, float sparsity = 1.0, float drift = 1.0, int SpiralOffset = 270);
+void P_DrawRailTrail(AActor *source, const TVector3<double> &start, const TVector3<double> &end, int color1, int color2, double maxdiff = 0, int flags = 0, const PClass *spawnclass = NULL, angle_t angle = 0, int duration = 35, double sparsity = 1.0, double drift = 1.0, int SpiralOffset = 270);
 void P_DrawSplash (int count, fixed_t x, fixed_t y, fixed_t z, angle_t angle, int kind);
 void P_DrawSplash2 (int count, fixed_t x, fixed_t y, fixed_t z, angle_t angle, int updown, int kind);
 void P_DisconnectEffect (AActor *actor);
diff --git a/src/p_enemy.cpp b/src/p_enemy.cpp
index 10c4704d44..5291101a57 100644
--- a/src/p_enemy.cpp
+++ b/src/p_enemy.cpp
@@ -2931,7 +2931,7 @@ DEFINE_ACTION_FUNCTION(AActor, A_MonsterRail)
 	if (linetarget == NULL)
 	{
 		// We probably won't hit the target, but aim at it anyway so we don't look stupid.
-		FVector2 xydiff(self->target->x - self->x, self->target->y - self->y);
+		TVector2<double> xydiff(self->target->x - self->x, self->target->y - self->y);
 		double zdiff = (self->target->z + (self->target->height>>1)) -
 						(self->z + (self->height>>1) - self->floorclip);
 		self->pitch = int(atan2(zdiff, xydiff.Length()) * ANGLE_180 / -M_PI);
diff --git a/src/p_local.h b/src/p_local.h
index b62836c172..686e0ee134 100644
--- a/src/p_local.h
+++ b/src/p_local.h
@@ -475,7 +475,7 @@ void	P_TraceBleed (int damage, AActor *target);		// random direction version
 bool	P_HitFloor (AActor *thing);
 bool	P_HitWater (AActor *thing, sector_t *sec, fixed_t splashx = FIXED_MIN, fixed_t splashy = FIXED_MIN, fixed_t splashz=FIXED_MIN, bool checkabove = false, bool alert = true);
 void	P_CheckSplash(AActor *self, fixed_t distance);
-void	P_RailAttack (AActor *source, int damage, int offset_xy, fixed_t offset_z = 0, int color1 = 0, int color2 = 0, float maxdiff = 0, int flags = 0, const PClass *puff = NULL, angle_t angleoffset = 0, angle_t pitchoffset = 0, fixed_t distance = 8192*FRACUNIT, int duration = 0, float sparsity = 1.0, float drift = 1.0, const PClass *spawnclass = NULL, int SpiralOffset = 270);	// [RH] Shoot a railgun
+void	P_RailAttack (AActor *source, int damage, int offset_xy, fixed_t offset_z = 0, int color1 = 0, int color2 = 0, double maxdiff = 0, int flags = 0, const PClass *puff = NULL, angle_t angleoffset = 0, angle_t pitchoffset = 0, fixed_t distance = 8192*FRACUNIT, int duration = 0, double sparsity = 1.0, double drift = 1.0, const PClass *spawnclass = NULL, int SpiralOffset = 270);	// [RH] Shoot a railgun
 
 enum	// P_RailAttack / A_RailAttack / A_CustomRailgun / P_DrawRailTrail flags
 {	
diff --git a/src/p_map.cpp b/src/p_map.cpp
index 26312d9226..d5745523c2 100644
--- a/src/p_map.cpp
+++ b/src/p_map.cpp
@@ -4150,12 +4150,12 @@ static ETraceStatus ProcessRailHit(FTraceResults &res, void *userdata)
 //
 //
 //==========================================================================
-void P_RailAttack(AActor *source, int damage, int offset_xy, fixed_t offset_z, int color1, int color2, float maxdiff, int railflags, const PClass *puffclass, angle_t angleoffset, angle_t pitchoffset, fixed_t distance, int duration, float sparsity, float drift, const PClass *spawnclass, int SpiralOffset)
+void P_RailAttack(AActor *source, int damage, int offset_xy, fixed_t offset_z, int color1, int color2, double maxdiff, int railflags, const PClass *puffclass, angle_t angleoffset, angle_t pitchoffset, fixed_t distance, int duration, double sparsity, double drift, const PClass *spawnclass, int SpiralOffset)
 {
 	fixed_t vx, vy, vz;
 	angle_t angle, pitch;
 	fixed_t x1, y1;
-	FVector3 start, end;
+	TVector3<double> start, end;
 	FTraceResults trace;
 	fixed_t shootz;
 
@@ -4304,9 +4304,9 @@ void P_RailAttack(AActor *source, int damage, int offset_xy, fixed_t offset_z, i
 	}
 
 	// Draw the slug's trail.
-	end.X = FIXED2FLOAT(trace.X);
-	end.Y = FIXED2FLOAT(trace.Y);
-	end.Z = FIXED2FLOAT(trace.Z);
+	end.X = FIXED2DBL(trace.X);
+	end.Y = FIXED2DBL(trace.Y);
+	end.Z = FIXED2DBL(trace.Z);
 	P_DrawRailTrail(source, start, end, color1, color2, maxdiff, railflags, spawnclass, source->angle + angleoffset, duration, sparsity, drift, SpiralOffset);
 }
 
diff --git a/src/thingdef/thingdef_codeptr.cpp b/src/thingdef/thingdef_codeptr.cpp
index 15d8291fc8..54bbe68d35 100644
--- a/src/thingdef/thingdef_codeptr.cpp
+++ b/src/thingdef/thingdef_codeptr.cpp
@@ -1502,14 +1502,14 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_RailAttack)
 	ACTION_PARAM_COLOR(Color1, 3);
 	ACTION_PARAM_COLOR(Color2, 4);
 	ACTION_PARAM_INT(Flags, 5);
-	ACTION_PARAM_FLOAT(MaxDiff, 6);
+	ACTION_PARAM_DOUBLE(MaxDiff, 6);
 	ACTION_PARAM_CLASS(PuffType, 7);
 	ACTION_PARAM_ANGLE(Spread_XY, 8);
 	ACTION_PARAM_ANGLE(Spread_Z, 9);
 	ACTION_PARAM_FIXED(Range, 10);
 	ACTION_PARAM_INT(Duration, 11);
-	ACTION_PARAM_FLOAT(Sparsity, 12);
-	ACTION_PARAM_FLOAT(DriftSpeed, 13);
+	ACTION_PARAM_DOUBLE(Sparsity, 12);
+	ACTION_PARAM_DOUBLE(DriftSpeed, 13);
 	ACTION_PARAM_CLASS(SpawnClass, 14);
 	ACTION_PARAM_FIXED(Spawnofs_Z, 15);
 	ACTION_PARAM_INT(SpiralOffset, 16);
@@ -1566,14 +1566,14 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_CustomRailgun)
 	ACTION_PARAM_COLOR(Color2, 3);
 	ACTION_PARAM_INT(Flags, 4);
 	ACTION_PARAM_INT(aim, 5);
-	ACTION_PARAM_FLOAT(MaxDiff, 6);
+	ACTION_PARAM_DOUBLE(MaxDiff, 6);
 	ACTION_PARAM_CLASS(PuffType, 7);
 	ACTION_PARAM_ANGLE(Spread_XY, 8);
 	ACTION_PARAM_ANGLE(Spread_Z, 9);
 	ACTION_PARAM_FIXED(Range, 10);
 	ACTION_PARAM_INT(Duration, 11);
-	ACTION_PARAM_FLOAT(Sparsity, 12);
-	ACTION_PARAM_FLOAT(DriftSpeed, 13);
+	ACTION_PARAM_DOUBLE(Sparsity, 12);
+	ACTION_PARAM_DOUBLE(DriftSpeed, 13);
 	ACTION_PARAM_CLASS(SpawnClass, 14);
 	ACTION_PARAM_FIXED(Spawnofs_Z, 15);
 	ACTION_PARAM_INT(SpiralOffset, 16);
@@ -1612,7 +1612,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_CustomRailgun)
 	if (linetarget == NULL && aim)
 	{
 		// We probably won't hit the target, but aim at it anyway so we don't look stupid.
-		FVector2 xydiff(self->target->x - self->x, self->target->y - self->y);
+		TVector2<double> xydiff(self->target->x - self->x, self->target->y - self->y);
 		double zdiff = (self->target->z + (self->target->height>>1)) -
 						(self->z + (self->height>>1) - self->floorclip);
 		self->pitch = int(atan2(zdiff, xydiff.Length()) * ANGLE_180 / -M_PI);

From 0fa0dc5f9e81c1b9acf3a720cc6921e958584410 Mon Sep 17 00:00:00 2001
From: Randy Heit <rheit@users.noreply.github.com>
Date: Tue, 30 Jun 2015 13:01:48 -0500
Subject: [PATCH 17/22] Add support for alias parameter substitution in quoted
 strings

- For backward compatibility, you need to indicate that substitution is
  allowed in the string by prepending it with a % character:

    alias asay "say %\"%1\""

  The above will substitute the alias parameter.

    alias asay "say \"%1\""

  The above will not substitute the alias parameter but use the string
  literal "%1" directly.
---
 src/c_dispatch.cpp | 60 ++++++++++++++++++++++++++++++++++------------
 1 file changed, 45 insertions(+), 15 deletions(-)

diff --git a/src/c_dispatch.cpp b/src/c_dispatch.cpp
index d72993cb77..8ddd022e94 100644
--- a/src/c_dispatch.cpp
+++ b/src/c_dispatch.cpp
@@ -1076,7 +1076,8 @@ FString BuildString (int argc, FString *argv)
 // %x or %{x} in the command line with argument x. If argument x does not
 // exist, then the empty string is substituted in its place.
 //
-// Substitution is not done inside of quoted strings.
+// Substitution is not done inside of quoted strings, unless that string is
+// prepended with a % character.
 //
 // To avoid a substitution, use %%. The %% will be replaced by a single %.
 //
@@ -1091,19 +1092,12 @@ FString SubstituteAliasParams (FString &command, FCommandLine &args)
 	char *p = command.LockBuffer(), *start = p;
 	unsigned long argnum;
 	FString buf;
+	bool inquote = false;
 
 	while (*p != '\0')
 	{
-		if (*p == '%' && ((p[1] >= '0' && p[1] <= '9') || p[1] == '{' || p[1] == '%'))
+		if (p[0] == '%' && ((p[1] >= '0' && p[1] <= '9') || p[1] == '{'))
 		{
-			if (p[1] == '%')
-			{
-				// Do not substitute. Just collapse to a single %.
-				buf.AppendCStrPart (start, p - start + 1);
-				start = p = p + 2;
-				continue;
-			}
-
 			// Do a substitution. Output what came before this.
 			buf.AppendCStrPart (start, p - start);
 
@@ -1115,14 +1109,50 @@ FString SubstituteAliasParams (FString &command, FCommandLine &args)
 			}
 			p = (start += (p[1] == '{' && *start == '}'));
 		}
-		else if (*p == '"')
+		else if (p[0] == '%' && p[1] == '%')
 		{
-			// Don't substitute inside quoted strings.
-			p++;
-			while (*p != '\0' && (*p != '"' || *(p-1) == '\\'))
+			// Do not substitute. Just collapse to a single %.
+			buf.AppendCStrPart (start, p - start + 1);
+			start = p = p + 2;
+			continue;
+		}
+		else if (p[0] == '%' && p[1] == '"')
+		{
+			// Collapse %" to " and remember that we're in a quote so when we
+			// see a " character again, we don't start skipping below.
+			if (!inquote)
+			{
+				inquote = true;
+				buf.AppendCStrPart(start, p - start);
+				start = p + 1;
+			}
+			else
+			{
+				inquote = false;
+			}
+			p += 2;
+		}
+		else if (p[0] == '\\' && p[1] == '"')
+		{
+			p += 2;
+		}
+		else if (p[0] == '"')
+		{
+			// Don't substitute inside quoted strings if it didn't start
+			// with a %"
+			if (!inquote)
+			{
 				p++;
-			if (*p != '\0')
+				while (*p != '\0' && (*p != '"' || *(p-1) == '\\'))
+					p++;
+				if (*p != '\0')
+					p++;
+			}
+			else
+			{
+				inquote = false;
 				p++;
+			}
 		}
 		else
 		{

From 9edf409ea21794195e223b6afbdf148c14395453 Mon Sep 17 00:00:00 2001
From: Randy Heit <rheit@users.noreply.github.com>
Date: Tue, 30 Jun 2015 13:11:33 -0500
Subject: [PATCH 18/22] Add British English "translation", because u's matter

---
 wadsrc/static/language.eng | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 wadsrc/static/language.eng

diff --git a/wadsrc/static/language.eng b/wadsrc/static/language.eng
new file mode 100644
index 0000000000..172cd2b4f9
--- /dev/null
+++ b/wadsrc/static/language.eng
@@ -0,0 +1,25 @@
+/* British English */
+
+[eng]
+
+GOTARMOR = "Picked up the armour.";
+GOTMEGA = "Picked up the MegaArmour!";
+GOTARMBONUS = "Picked up an armour bonus.";
+
+SCORE_COLOR = "COLOUR";
+
+TAG_SHADOWARMOR = "Shadow Armour";
+TAG_METALARMOR = "Metal Armour";
+TAG_LEATHER = "Leather Armour";
+TAG_ARMORER = "Armourer";
+
+TXT_ARMOR1 = "MESH ARMOUR";
+
+TXT_METALARMOR = "You picked up the Metal Armour.";
+TXT_LEATHERARMOR = "You picked up the Leather Armour.";
+TXT_SHADOWARMOR = "You picked up the Shadow armour.";
+
+GOTCHEXARMOR = "Picked up the Chex(R) Armour.";
+GOTSUPERCHEXARMOR = "Picked up the Super Chex(R) Armour!";
+
+OB_BIPEDICUS2 = "%o was slimed by an armoured bipedicus.";

From 3adda344b6178f78e28df0eb35beb6601b08f7ce Mon Sep 17 00:00:00 2001
From: Braden Obrzut <admin@maniacsvault.net>
Date: Mon, 6 Jul 2015 02:58:01 -0400
Subject: [PATCH 19/22] - Missing common resolution 1680x1050 added to
 resolution list of SDL and Cocoa.

---
 src/posix/cocoa/i_video.mm | 1 +
 src/posix/sdl/sdlvideo.cpp | 1 +
 2 files changed, 2 insertions(+)

diff --git a/src/posix/cocoa/i_video.mm b/src/posix/cocoa/i_video.mm
index 29e6bf4d4b..410a106f50 100644
--- a/src/posix/cocoa/i_video.mm
+++ b/src/posix/cocoa/i_video.mm
@@ -339,6 +339,7 @@ VideoModes[] =
 	{ 1600,  900 },	// 16:9
 	{ 1600, 1000 },	// 16:10
 	{ 1600, 1200 },
+	{ 1680, 1050 },	// 16:10
 	{ 1920, 1080 },
 	{ 1920, 1200 },
 	{ 2048, 1536 },
diff --git a/src/posix/sdl/sdlvideo.cpp b/src/posix/sdl/sdlvideo.cpp
index 76191e1a92..9da52c2dd3 100644
--- a/src/posix/sdl/sdlvideo.cpp
+++ b/src/posix/sdl/sdlvideo.cpp
@@ -178,6 +178,7 @@ static MiniModeInfo WinModes[] =
 	{ 1600, 900 },	// 16:9
 	{ 1600, 1000 },	// 16:10
 	{ 1600, 1200 },
+	{ 1680, 1050 },	// 16:10
 	{ 1920, 1080 },
 	{ 1920, 1200 },
 	{ 2048, 1536 },

From 9e1a82a83046178bc0509e07caf9667b3ad6e057 Mon Sep 17 00:00:00 2001
From: Marrub <marrub@greyserv.net>
Date: Fri, 10 Jul 2015 08:45:15 +0000
Subject: [PATCH 20/22] fix menus muting themselves when the volume is changed

---
 src/sound/oalsound.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/sound/oalsound.cpp b/src/sound/oalsound.cpp
index 447de49f98..662e426e66 100644
--- a/src/sound/oalsound.cpp
+++ b/src/sound/oalsound.cpp
@@ -924,6 +924,8 @@ void OpenALSoundRenderer::SetSfxVolume(float volume)
         schan = schan->NextChan;
     }
 
+    alProcessUpdatesSOFT();
+
     getALError();
 }
 

From eeaea59828d4522b3e24272f5de0a0d1d2a34c12 Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <c.oelckers@zdoom.fake>
Date: Mon, 13 Jul 2015 08:42:42 +0200
Subject: [PATCH 21/22] - fixed: FTagManager::RemoveSectorTags must check if
 the StartForSector array is large enough to contain the sector whose
 information is to be removed.

---
 src/p_tags.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/p_tags.cpp b/src/p_tags.cpp
index c08caec8fb..99796e2691 100644
--- a/src/p_tags.cpp
+++ b/src/p_tags.cpp
@@ -98,7 +98,7 @@ void FTagManager::AddSectorTag(int sector, int tag)
 
 void FTagManager::RemoveSectorTags(int sect)
 {
-	if (startForSector.Size() > 0)
+	if (startForSector.Size() > sect)
 	{
 		int start = startForSector[sect];
 		if (start >= 0)

From fe2e293d026a2eafd9393ace445fdf1452cdbc44 Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <c.oelckers@zdoom.fake>
Date: Mon, 13 Jul 2015 09:08:08 +0200
Subject: [PATCH 22/22] - added some error checks for trying to create
 unsupported animations for textures with full path names.

---
 src/textures/animations.cpp | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/src/textures/animations.cpp b/src/textures/animations.cpp
index 0290a293fa..b9f4382a63 100644
--- a/src/textures/animations.cpp
+++ b/src/textures/animations.cpp
@@ -395,6 +395,11 @@ void FTextureManager::ParseAnim (FScanner &sc, int usetype)
 		}
 		else if (sc.Compare ("range"))
 		{
+			if (picnum.Exists() && Texture(picnum)->Name.IsEmpty())
+			{
+				// long texture name: We cannot do ranged anims on these because they have no defined order
+				sc.ScriptError ("You cannot use \"range\" for long texture names.");
+			}
 			if (defined == 2)
 			{
 				sc.ScriptError ("You cannot use \"pic\" and \"range\" together in a single animation.");
@@ -456,12 +461,20 @@ FAnimDef *FTextureManager::ParseRangeAnim (FScanner &sc, FTextureID picnum, int
 
 	type = FAnimDef::ANIM_Forward;
 	framenum = ParseFramenum (sc, picnum, usetype, missing);
+
 	ParseTime (sc, min, max);
 
-	if (framenum == picnum || !picnum.Exists())
+	if (framenum == picnum || !picnum.Exists() || !framenum.Exists())
 	{
 		return NULL;		// Animation is only one frame or does not exist
 	}
+
+	if (Texture(framenum)->Name.IsEmpty())
+	{
+		// long texture name: We cannot do ranged anims on these because they have no defined order
+		sc.ScriptError ("You cannot use \"range\" for long texture names.");
+	}
+
 	if (framenum < picnum)
 	{
 		type = FAnimDef::ANIM_Backward;
@@ -570,7 +583,7 @@ void FTextureManager::ParseTime (FScanner &sc, DWORD &min, DWORD &max)
 
 void FTextureManager::ParseWarp(FScanner &sc)
 {
-	const BITFIELD texflags = TEXMAN_Overridable | TEXMAN_TryAny | TEXMAN_ShortNameOnly;
+	const BITFIELD texflags = TEXMAN_Overridable | TEXMAN_TryAny;
 	bool isflat = false;
 	bool type2 = sc.Compare ("warp2");	// [GRB]
 	sc.MustGetString ();
@@ -591,8 +604,16 @@ void FTextureManager::ParseWarp(FScanner &sc)
 	FTextureID picnum = CheckForTexture (sc.String, isflat ? FTexture::TEX_Flat : FTexture::TEX_Wall, texflags);
 	if (picnum.isValid())
 	{
+
 		FTexture *warper = Texture(picnum);
 
+		if (warper->Name.IsEmpty())
+		{
+			// long texture name: We cannot do warps on these due to the way the texture manager implements warping as a texture replacement.
+			sc.ScriptError ("You cannot use \"warp\" for long texture names.");
+		}
+
+
 		// don't warp a texture more than once
 		if (!warper->bWarped)
 		{