diff --git a/Makefile b/Makefile
index 52dec25..7fcaad1 100644
--- a/Makefile
+++ b/Makefile
@@ -50,7 +50,7 @@ ifeq ($(sse),1)
   CFLAGS += -msse2 -mfpmath=sse
 endif
 
-OBJS = main.o getopt.o getopt1.o blockmapbuilder.o processor.o view.o wad.o \
+OBJS = main.o getopt.o getopt1.o blockmapbuilder.o processor.o processor_udmf.o sc_man.o view.o wad.o \
 	nodebuild.o nodebuild_events.o nodebuild_extract.o nodebuild_gl.o \
 	nodebuild_utility.o nodebuild_classify_nosse2.o \
 	zlib/adler32.o zlib/compress.o zlib/crc32.o zlib/deflate.o zlib/trees.o \
diff --git a/blockmapbuilder.cpp b/blockmapbuilder.cpp
index 0e58653..5758019 100644
--- a/blockmapbuilder.cpp
+++ b/blockmapbuilder.cpp
@@ -211,7 +211,7 @@ void FBlockmapBuilder::BuildBlockmap ()
 
 	BlockLists = new TArray<WORD>[bmapwidth * bmapheight];
 
-	for (line = 0; line < Level.NumLines; ++line)
+	for (line = 0; line < Level.NumLines(); ++line)
 	{
 		int x1 = Level.Vertices[Level.Lines[line].v1].x >> FRACBITS;
 		int y1 = Level.Vertices[Level.Lines[line].v1].y >> FRACBITS;
diff --git a/doomdata.h b/doomdata.h
index 6483823..4bc61f4 100644
--- a/doomdata.h
+++ b/doomdata.h
@@ -5,11 +5,19 @@
 #pragma once
 #endif
 
+#include "tarray.h"
+
 enum
 {
 	BOXTOP, BOXBOTTOM, BOXLEFT, BOXRIGHT
 };
 
+struct UDMFKey
+{
+	int key;
+	int value;
+};
+
 struct MapVertex
 {
 	short x, y;
@@ -30,6 +38,20 @@ struct MapSideDef
 	WORD	sector;
 };
 
+struct IntSideDef
+{
+	// the first 5 values are only used for binary format maps
+	short	textureoffset;
+	short	rowoffset;
+	char	toptexture[8];
+	char	bottomtexture[8];
+	char	midtexture[8];
+
+	int sector;
+
+	TArray<UDMFKey> props;
+};
+
 struct MapLineDef
 {
 	WORD	v1;
@@ -50,6 +72,18 @@ struct MapLineDef2
 	WORD	sidenum[2];
 };
 
+struct IntLineDef
+{
+	DWORD v1;
+	DWORD v2;
+	int flags;
+	int special;
+	int args[5];
+	DWORD sidenum[2];
+
+	TArray<UDMFKey> props;
+};
+
 struct MapSector
 {
 	short	floorheight;
@@ -61,6 +95,17 @@ struct MapSector
 	short	tag;
 };
 
+struct IntSector
+{
+	// none of the sector properties are used by the node builder
+	// so there's no need to store them in their expanded form for
+	// UDMF. JUst storing the UDMF keys and leaving the binary fields
+	// empty is enough
+	MapSector data;
+
+	TArray<UDMFKey> props;
+};
+
 struct MapSubsector
 {
 	WORD	numlines;
@@ -140,19 +185,35 @@ struct MapThing2
 	char		args[5];
 };
 
+struct IntThing
+{
+	unsigned short thingid;
+	fixed_t		x;	// full precision coordinates for UDMF support
+	fixed_t		y;
+	// everything else is not needed or has no extended form in UDMF
+	short		z;
+	short		angle;
+	short		type;
+	short		flags;
+	char		special;
+	char		args[5];
+
+	TArray<UDMFKey> props;
+};
+
 struct FLevel
 {
 	FLevel ();
 	~FLevel ();
 
 	WideVertex *Vertices;		int NumVertices;
-	MapSideDef *Sides;			int NumSides;
-	MapLineDef2 *Lines;			int NumLines;
-	MapSector *Sectors;			int NumSectors;
+	TArray<IntSideDef>			Sides;
+	TArray<IntLineDef>			Lines;
+	TArray<IntSector>			Sectors;
+	TArray<IntThing>			Things;
 	MapSubsectorEx *Subsectors;	int NumSubsectors;
 	MapSeg *Segs;				int NumSegs;
 	MapNodeEx *Nodes;			int NumNodes;
-	MapThing2 *Things;			int NumThings;
 	WORD *Blockmap;				int BlockmapSize;
 	BYTE *Reject;				int RejectSize;
 
@@ -164,7 +225,7 @@ struct FLevel
 
 	int NumOrgVerts;
 
-	WORD *OrgSectorMap;			int NumOrgSectors;
+	DWORD *OrgSectorMap;			int NumOrgSectors;
 
 	fixed_t MinX, MinY, MaxX, MaxY;
 
@@ -172,6 +233,11 @@ struct FLevel
 	void RemoveExtraLines ();
 	void RemoveExtraSides ();
 	void RemoveExtraSectors ();
+
+	int NumSides() const { return Sides.Size(); }
+	int NumLines() const { return Lines.Size(); }
+	int NumSectors() const { return Sectors.Size(); }
+	int NumThings() const { return Things.Size(); }
 };
 
 const int BLOCKSIZE = 128;
diff --git a/nodebuild_extract.cpp b/nodebuild_extract.cpp
index 7c4262f..b10c8ca 100644
--- a/nodebuild_extract.cpp
+++ b/nodebuild_extract.cpp
@@ -1,22 +1,22 @@
-/*
-    Routines for extracting usable data from the new BSP tree.
-    Copyright (C) 2002-2006 Randy Heit
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-*/
+/*
+    Routines for extracting usable data from the new BSP tree.
+    Copyright (C) 2002-2006 Randy Heit
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
 #include <string.h>
 #include <stdio.h>
 #include <float.h>
@@ -320,7 +320,7 @@ DWORD FNodeBuilder::PushGLSeg (TArray<MapSegGLEx> &segs, const FPrivSeg *seg)
 
 	if (newseg.linedef != NO_INDEX)
 	{
-		MapLineDef2 * ld = &Level.Lines[newseg.linedef];
+		IntLineDef * ld = &Level.Lines[newseg.linedef];
 
 		if (ld->sidenum[0]==ld->sidenum[1])
 		{
@@ -478,7 +478,7 @@ int FNodeBuilder::StripMinisegs (TArray<MapSeg> &segs, int subsector, short bbox
 			// Just checking the sidedef to determine the side is insufficient.
 			// When a level is sidedef compressed both sides may well have the same sidedef.
 
-			MapLineDef2 * ld = &Level.Lines[newseg.linedef];
+			IntLineDef * ld = &Level.Lines[newseg.linedef];
 
 			if (ld->sidenum[0]==ld->sidenum[1])
 			{
diff --git a/nodebuild_utility.cpp b/nodebuild_utility.cpp
index 94899f2..ae7c285 100644
--- a/nodebuild_utility.cpp
+++ b/nodebuild_utility.cpp
@@ -47,13 +47,13 @@ const fixed_t VERTEX_EPSILON = 6;
 
 void FNodeBuilder::FindUsedVertices (WideVertex *oldverts, int max)
 {
-	int *map = (int *)alloca (max*sizeof(int));
+	int *map = new int[max];
 	int i;
 	FPrivVert newvert;
 
 	memset (&map[0], -1, sizeof(int)*max);
 
-	for (i = 0; i < Level.NumLines; ++i)
+	for (i = 0; i < Level.NumLines(); ++i)
 	{
 		int v1 = Level.Lines[i].v1;
 		int v2 = Level.Lines[i].v2;
@@ -71,11 +71,12 @@ void FNodeBuilder::FindUsedVertices (WideVertex *oldverts, int max)
 			map[v2] = VertexMap->SelectVertexExact (newvert);
 		}
 
-		Level.Lines[i].v1 = (WORD)map[v1];
-		Level.Lines[i].v2 = (WORD)map[v2];
+		Level.Lines[i].v1 = map[v1];
+		Level.Lines[i].v2 = map[v2];
 	}
 	InitialVertices = Vertices.Size ();
 	Level.NumOrgVerts = (int)InitialVertices;
+	delete[] map;
 }
 
 // For every sidedef in the map, create a corresponding seg.
@@ -84,7 +85,7 @@ void FNodeBuilder::MakeSegsFromSides ()
 {
 	int i, j;
 
-	for (i = 0; i < Level.NumLines; ++i)
+	for (i = 0; i < Level.NumLines(); ++i)
 	{
 		if (Level.Lines[i].sidenum[0] != NO_INDEX)
 		{
@@ -110,7 +111,7 @@ void FNodeBuilder::MakeSegsFromSides ()
 int FNodeBuilder::CreateSeg (int linenum, int sidenum)
 {
 	FPrivSeg seg;
-	WORD backside;
+	DWORD backside;
 	int segnum;
 
 	seg.next = DWORD_MAX;
diff --git a/processor.cpp b/processor.cpp
index 44e3645..042ff33 100644
--- a/processor.cpp
+++ b/processor.cpp
@@ -43,11 +43,7 @@ FLevel::FLevel ()
 
 FLevel::~FLevel ()
 {
-	if (Things)			delete[] Things;
-	if (Lines)			delete[] Lines;
 	if (Vertices)		delete[] Vertices;
-	if (Sides)			delete[] Sides;
-	if (Sectors)		delete[] Sectors;
 	if (Subsectors)		delete[] Subsectors;
 	if (Segs)			delete[] Segs;
 	if (Nodes)			delete[] Nodes;
@@ -66,14 +62,24 @@ FProcessor::FProcessor (FWadReader &inwad, int lump)
 {
 	printf ("----%s----\n", Wad.LumpName (Lump));
 
-	Extended = Wad.MapHasBehavior (lump);
-	LoadThings ();
-	LoadVertices ();
-	LoadLines ();
-	LoadSides ();
-	LoadSectors ();
+	isUDMF = Wad.isUDMF(lump);
 
-	if (Level.NumLines == 0 || Level.NumVertices == 0 || Level.NumSides == 0 || Level.NumSectors == 0)
+	if (isUDMF)
+	{
+		Extended = false;
+		LoadUDMF();
+	}
+	else
+	{
+		Extended = Wad.MapHasBehavior (lump);
+		LoadThings ();
+		LoadVertices ();
+		LoadLines ();
+		LoadSides ();
+		LoadSectors ();
+	}
+
+	if (Level.NumLines() == 0 || Level.NumVertices == 0 || Level.NumSides() == 0 || Level.NumSectors() == 0)
 	{
 		printf ("   Map is incomplete\n");
 	}
@@ -98,33 +104,52 @@ FProcessor::FProcessor (FWadReader &inwad, int lump)
 
 void FProcessor::LoadThings ()
 {
+	int NumThings;
+
 	if (Extended)
 	{
-		ReadMapLump<MapThing2> (Wad, "THINGS", Lump, Level.Things, Level.NumThings);
+		MapThing2 *Things;
+		ReadMapLump<MapThing2> (Wad, "THINGS", Lump, Things, NumThings);
 
-		for (int i = 0; i < Level.NumThings; ++i)
+		Level.Things.Resize(NumThings);
+		for (int i = 0; i < NumThings; ++i)
 		{
-			Level.Things[i].x = LittleShort(Level.Things[i].x);
-			Level.Things[i].y = LittleShort(Level.Things[i].y);
-			Level.Things[i].angle = LittleShort(Level.Things[i].angle);
-			Level.Things[i].type = LittleShort(Level.Things[i].type);
-			Level.Things[i].flags = LittleShort(Level.Things[i].flags);
+			Level.Things[i].thingid = Things[i].thingid;
+			Level.Things[i].x = LittleShort(Things[i].x) << FRACBITS;
+			Level.Things[i].y = LittleShort(Things[i].y) << FRACBITS;
+			Level.Things[i].z = LittleShort(Things[i].z);
+			Level.Things[i].angle = LittleShort(Things[i].angle);
+			Level.Things[i].type = LittleShort(Things[i].type);
+			Level.Things[i].flags = LittleShort(Things[i].flags);
+			Level.Things[i].special = Things[i].special;
+			Level.Things[i].args[0] = Things[i].args[0];
+			Level.Things[i].args[1] = Things[i].args[1];
+			Level.Things[i].args[2] = Things[i].args[2];
+			Level.Things[i].args[3] = Things[i].args[3];
+			Level.Things[i].args[4] = Things[i].args[4];
 		}
+		delete[] Things;
 	}
 	else
 	{
 		MapThing *mt;
-		ReadMapLump<MapThing> (Wad, "THINGS", Lump, mt, Level.NumThings);
+		ReadMapLump<MapThing> (Wad, "THINGS", Lump, mt, NumThings);
 
-		Level.Things = new MapThing2[Level.NumThings];
-		memset (Level.Things, 0, sizeof(*Level.Things)*Level.NumThings);
-		for (int i = 0; i < Level.NumThings; ++i)
+		Level.Things.Resize(NumThings);
+		for (int i = 0; i < NumThings; ++i)
 		{
-			Level.Things[i].x = LittleShort(mt[i].x);
-			Level.Things[i].y = LittleShort(mt[i].y);
+			Level.Things[i].x = LittleShort(mt[i].x) << FRACBITS;
+			Level.Things[i].y = LittleShort(mt[i].y) << FRACBITS;
 			Level.Things[i].angle = LittleShort(mt[i].angle);
 			Level.Things[i].type = LittleShort(mt[i].type);
 			Level.Things[i].flags = LittleShort(mt[i].flags);
+			Level.Things[i].z = 0;
+			Level.Things[i].special = 0;
+			Level.Things[i].args[0] = 0;
+			Level.Things[i].args[1] = 0;
+			Level.Things[i].args[2] = 0;
+			Level.Things[i].args[3] = 0;
+			Level.Things[i].args[4] = 0;
 		}
 		delete[] mt;
 	}
@@ -132,41 +157,53 @@ void FProcessor::LoadThings ()
 
 void FProcessor::LoadLines ()
 {
+	int NumLines;
+
 	if (Extended)
 	{
-		ReadMapLump<MapLineDef2> (Wad, "LINEDEFS", Lump, Level.Lines, Level.NumLines);
+		MapLineDef2 *Lines;
 
-		for (int i = 0; i < Level.NumLines; ++i)
+		ReadMapLump<MapLineDef2> (Wad, "LINEDEFS", Lump, Lines, NumLines);
+
+		Level.Lines.Resize(NumLines);
+		for (int i = 0; i < NumLines; ++i)
 		{
-			Level.Lines[i].v1 = LittleShort(Level.Lines[i].v1);
-			Level.Lines[i].v2 = LittleShort(Level.Lines[i].v2);
-			Level.Lines[i].flags = LittleShort(Level.Lines[i].flags);
-			Level.Lines[i].sidenum[0] = LittleShort(Level.Lines[i].sidenum[0]);
-			Level.Lines[i].sidenum[1] = LittleShort(Level.Lines[i].sidenum[1]);
+			Level.Lines[i].special = Lines[i].special;
+			Level.Lines[i].args[0] = Lines[i].args[0];
+			Level.Lines[i].args[1] = Lines[i].args[1];
+			Level.Lines[i].args[2] = Lines[i].args[2];
+			Level.Lines[i].args[3] = Lines[i].args[3];
+			Level.Lines[i].args[4] = Lines[i].args[4];
+			Level.Lines[i].v1 = LittleShort(Lines[i].v1);
+			Level.Lines[i].v2 = LittleShort(Lines[i].v2);
+			Level.Lines[i].flags = LittleShort(Lines[i].flags);
+			Level.Lines[i].sidenum[0] = LittleShort(Lines[i].sidenum[0]);
+			Level.Lines[i].sidenum[1] = LittleShort(Lines[i].sidenum[1]);
+			if (Level.Lines[i].sidenum[0] == 0xffff) Level.Lines[i].sidenum[0] = NO_INDEX;
+			if (Level.Lines[i].sidenum[1] == 0xffff) Level.Lines[i].sidenum[1] = NO_INDEX;
 		}
+		delete[] Lines;
 	}
 	else
 	{
 		MapLineDef *ml;
-		ReadMapLump<MapLineDef> (Wad, "LINEDEFS", Lump, ml, Level.NumLines);
+		ReadMapLump<MapLineDef> (Wad, "LINEDEFS", Lump, ml, NumLines);
 
-		Level.Lines = new MapLineDef2[Level.NumLines];
-		memset (Level.Lines, 0, sizeof(*Level.Lines)*Level.NumLines);
-		for (int i = 0; i < Level.NumLines; ++i)
+		Level.Lines.Resize(NumLines);
+		for (int i = 0; i < NumLines; ++i)
 		{
 			Level.Lines[i].v1 = LittleShort(ml[i].v1);
 			Level.Lines[i].v2 = LittleShort(ml[i].v2);
 			Level.Lines[i].flags = LittleShort(ml[i].flags);
 			Level.Lines[i].sidenum[0] = LittleShort(ml[i].sidenum[0]);
 			Level.Lines[i].sidenum[1] = LittleShort(ml[i].sidenum[1]);
+			if (Level.Lines[i].sidenum[0] == 0xffff) Level.Lines[i].sidenum[0] = NO_INDEX;
+			if (Level.Lines[i].sidenum[1] == 0xffff) Level.Lines[i].sidenum[1] = NO_INDEX;
 
 			// Store the special and tag in the args array so we don't lose them
-			short t = LittleShort(ml[i].special);
-			Level.Lines[i].args[2] = t & 255;
-			Level.Lines[i].args[3] = t >> 8;
-			t = LittleShort(ml[i].tag);
-			Level.Lines[i].args[0] = t & 255;
-			Level.Lines[i].args[1] = t >> 8;
+			Level.Lines[i].special = 0;
+			Level.Lines[i].args[0] = LittleShort(ml[i].special);
+			Level.Lines[i].args[1] = LittleShort(ml[i].tag);
 		}
 		delete[] ml;
 	}
@@ -188,17 +225,37 @@ void FProcessor::LoadVertices ()
 
 void FProcessor::LoadSides ()
 {
-	ReadMapLump<MapSideDef> (Wad, "SIDEDEFS", Lump, Level.Sides, Level.NumSides);
+	MapSideDef *Sides;
+	int NumSides;
+	ReadMapLump<MapSideDef> (Wad, "SIDEDEFS", Lump, Sides, NumSides);
 
-	for (int i = 0; i < Level.NumSides; ++i)
+	Level.Sides.Resize(NumSides);
+	for (int i = 0; i < NumSides; ++i)
 	{
-		Level.Sides[i].sector = LittleShort(Level.Sides[i].sector);
+		Level.Sides[i].textureoffset = Sides[i].textureoffset;
+		Level.Sides[i].rowoffset = Sides[i].rowoffset;
+		memcpy(Level.Sides[i].toptexture, Sides[i].toptexture, 8);
+		memcpy(Level.Sides[i].bottomtexture, Sides[i].bottomtexture, 8);
+		memcpy(Level.Sides[i].midtexture, Sides[i].midtexture, 8);
+
+		Level.Sides[i].sector = LittleShort(Sides[i].sector);
+		if (Level.Sides[i].sector == 0xffff) Level.Sides[i].sector = NO_INDEX;
 	}
+	delete [] Sides;
 }
 
 void FProcessor::LoadSectors ()
 {
-	ReadMapLump<MapSector> (Wad, "SECTORS", Lump, Level.Sectors, Level.NumSectors);
+	MapSector *Sectors;
+	int NumSectors;
+
+	ReadMapLump<MapSector> (Wad, "SECTORS", Lump, Sectors, NumSectors);
+	Level.Sectors.Resize(NumSectors);
+
+	for (int i = 0; i < NumSectors; ++i)
+	{
+		Level.Sectors[i].data = Sectors[i];
+	}
 }
 
 void FLevel::FindMapBounds ()
@@ -229,7 +286,7 @@ void FLevel::RemoveExtraLines ()
 	// Extra lines are those with 0 length. Collision detection against
 	// one of those could cause a divide by 0, so it's best to remove them.
 
-	for (i = newNumLines = 0; i < NumLines; ++i)
+	for (i = newNumLines = 0; i < NumLines(); ++i)
 	{
 		if (Vertices[Lines[i].v1].x != Vertices[Lines[i].v2].x ||
 			Vertices[Lines[i].v1].y != Vertices[Lines[i].v2].y)
@@ -241,30 +298,31 @@ void FLevel::RemoveExtraLines ()
 			++newNumLines;
 		}
 	}
-	if (newNumLines < NumLines)
+	if (newNumLines < NumLines())
 	{
-		int diff = NumLines - newNumLines;
+		int diff = NumLines() - newNumLines;
 
 		printf ("   Removed %d line%s with 0 length.\n", diff, diff > 1 ? "s" : "");
 	}
-	NumLines = newNumLines;
+	Lines.Resize(newNumLines);
 }
 
 void FLevel::RemoveExtraSides ()
 {
 	BYTE *used;
-	WORD *remap;
+	int *remap;
 	int i, newNumSides;
 
 	// Extra sides are those that aren't referenced by any lines.
 	// They just waste space, so get rid of them.
+	int NumSides = this->NumSides();
 
 	used = new BYTE[NumSides];
 	memset (used, 0, NumSides*sizeof(*used));
-	remap = new WORD[NumSides];
+	remap = new int[NumSides];
 
 	// Mark all used sides
-	for (i = 0; i < NumLines; ++i)
+	for (i = 0; i < NumLines(); ++i)
 	{
 		if (Lines[i].sidenum[0] != NO_INDEX)
 		{
@@ -302,10 +360,10 @@ void FLevel::RemoveExtraSides ()
 		int diff = NumSides - newNumSides;
 
 		printf ("   Removed %d unused sidedef%s.\n", diff, diff > 1 ? "s" : "");
-		NumSides = newNumSides;
+		Sides.Resize(newNumSides);
 
 		// Renumber side references in lines
-		for (i = 0; i < NumLines; ++i)
+		for (i = 0; i < NumLines(); ++i)
 		{
 			if (Lines[i].sidenum[0] != NO_INDEX)
 			{
@@ -317,7 +375,6 @@ void FLevel::RemoveExtraSides ()
 			}
 		}
 	}
-
 	delete[] used;
 	delete[] remap;
 }
@@ -325,19 +382,19 @@ void FLevel::RemoveExtraSides ()
 void FLevel::RemoveExtraSectors ()
 {
 	BYTE *used;
-	WORD *remap;
+	DWORD *remap;
 	int i, newNumSectors;
 
 	// Extra sectors are those that aren't referenced by any sides.
 	// They just waste space, so get rid of them.
 
-	NumOrgSectors = NumSectors;
-	used = new BYTE[NumSectors];
-	memset (used, 0, NumSectors*sizeof(*used));
-	remap = new WORD[NumSectors];
+	NumOrgSectors = NumSectors();
+	used = new BYTE[NumSectors()];
+	memset (used, 0, NumSectors()*sizeof(*used));
+	remap = new DWORD[NumSectors()];
 
 	// Mark all used sectors
-	for (i = 0; i < NumSides; ++i)
+	for (i = 0; i < NumSides(); ++i)
 	{
 		if (Sides[i].sector != NO_INDEX)
 		{
@@ -350,7 +407,7 @@ void FLevel::RemoveExtraSectors ()
 	}
 
 	// Shift out any unused sides
-	for (i = newNumSectors = 0; i < NumSectors; ++i)
+	for (i = newNumSectors = 0; i < NumSectors(); ++i)
 	{
 		if (used[i])
 		{
@@ -366,13 +423,13 @@ void FLevel::RemoveExtraSectors ()
 		}
 	}
 
-	if (newNumSectors < NumSectors)
+	if (newNumSectors < NumSectors())
 	{
-		int diff = NumSectors - newNumSectors;
+		int diff = NumSectors() - newNumSectors;
 		printf ("   Removed %d unused sector%s.\n", diff, diff > 1 ? "s" : "");
 
 		// Renumber sector references in sides
-		for (i = 0; i < NumSides; ++i)
+		for (i = 0; i < NumSides(); ++i)
 		{
 			if (Sides[i].sector != NO_INDEX)
 			{
@@ -380,8 +437,8 @@ void FLevel::RemoveExtraSectors ()
 			}
 		}
 		// Make a reverse map for fixing reject lumps
-		OrgSectorMap = new WORD[newNumSectors];
-		for (i = 0; i < NumSectors; ++i)
+		OrgSectorMap = new DWORD[newNumSectors];
+		for (i = 0; i < NumSectors(); ++i)
 		{
 			if (remap[i] != NO_INDEX)
 			{
@@ -389,7 +446,7 @@ void FLevel::RemoveExtraSectors ()
 			}
 		}
 
-		NumSectors = newNumSectors;
+		Sectors.Resize(newNumSectors);
 	}
 
 	delete[] used;
@@ -404,7 +461,7 @@ void FProcessor::GetPolySpots ()
 
 		// Determine if this is a Hexen map by looking for things of type 3000
 		// Only Hexen maps use them, and they are the polyobject anchors
-		for (i = 0; i < Level.NumThings; ++i)
+		for (i = 0; i < Level.NumThings(); ++i)
 		{
 			if (Level.Things[i].type == PO_HEX_ANCHOR_TYPE)
 			{
@@ -412,7 +469,7 @@ void FProcessor::GetPolySpots ()
 			}
 		}
 
-		if (i < Level.NumThings)
+		if (i < Level.NumThings())
 		{
 			spot1 = PO_HEX_SPAWN_TYPE;
 			spot2 = PO_HEX_SPAWNCRUSH_TYPE;
@@ -425,15 +482,15 @@ void FProcessor::GetPolySpots ()
 			anchor = PO_ANCHOR_TYPE;
 		}
 
-		for (i = 0; i < Level.NumThings; ++i)
+		for (i = 0; i < Level.NumThings(); ++i)
 		{
 			if (Level.Things[i].type == spot1 ||
 				Level.Things[i].type == spot2 ||
 				Level.Things[i].type == anchor)
 			{
 				FNodeBuilder::FPolyStart newvert;
-				newvert.x = Level.Things[i].x << FRACBITS;
-				newvert.y = Level.Things[i].y << FRACBITS;
+				newvert.x = Level.Things[i].x;
+				newvert.y = Level.Things[i].y;
 				newvert.polynum = Level.Things[i].angle;
 				if (Level.Things[i].type == anchor)
 				{
@@ -450,24 +507,30 @@ void FProcessor::GetPolySpots ()
 
 void FProcessor::Write (FWadWriter &out)
 {
-	if (Level.NumLines == 0 || Level.NumSides == 0 || Level.NumSectors == 0 || Level.NumVertices == 0)
+	if (Level.NumLines() == 0 || Level.NumSides() == 0 || Level.NumSectors() == 0 || Level.NumVertices == 0)
 	{
-		// Map is empty, so just copy it as-is
-		out.CopyLump (Wad, Lump);
-		out.CopyLump (Wad, Wad.FindMapLump ("THINGS", Lump));
-		out.CopyLump (Wad, Wad.FindMapLump ("LINEDEFS", Lump));
-		out.CopyLump (Wad, Wad.FindMapLump ("SIDEDEFS", Lump));
-		out.CopyLump (Wad, Wad.FindMapLump ("VERTEXES", Lump));
-		out.CreateLabel ("SEGS");
-		out.CreateLabel ("SSECTORS");
-		out.CreateLabel ("NODES");
-		out.CopyLump (Wad, Wad.FindMapLump ("SECTORS", Lump));
-		out.CreateLabel ("REJECT");
-		out.CreateLabel ("BLOCKMAP");
-		if (Extended)
+		if (!isUDMF)
+		{
+			// Map is empty, so just copy it as-is
+			out.CopyLump (Wad, Lump);
+			out.CopyLump (Wad, Wad.FindMapLump ("THINGS", Lump));
+			out.CopyLump (Wad, Wad.FindMapLump ("LINEDEFS", Lump));
+			out.CopyLump (Wad, Wad.FindMapLump ("SIDEDEFS", Lump));
+			out.CopyLump (Wad, Wad.FindMapLump ("VERTEXES", Lump));
+			out.CreateLabel ("SEGS");
+			out.CreateLabel ("SSECTORS");
+			out.CreateLabel ("NODES");
+			out.CopyLump (Wad, Wad.FindMapLump ("SECTORS", Lump));
+			out.CreateLabel ("REJECT");
+			out.CreateLabel ("BLOCKMAP");
+			if (Extended)
+			{
+				out.CopyLump (Wad, Wad.FindMapLump ("BEHAVIOR", Lump));
+				out.CopyLump (Wad, Wad.FindMapLump ("SCRIPTS", Lump));
+			}
+		}
+		else
 		{
-			out.CopyLump (Wad, Wad.FindMapLump ("BEHAVIOR", Lump));
-			out.CopyLump (Wad, Wad.FindMapLump ("SCRIPTS", Lump));
 		}
 		return;
 	}
@@ -493,6 +556,9 @@ void FProcessor::Write (FWadWriter &out)
 	if (BuildNodes)
 	{
 		FNodeBuilder *builder = NULL;
+
+		// UDMF spec requires GL nodes.
+		if (isUDMF) BuildGLNodes = true;
 		
 		try
 		{
@@ -580,7 +646,7 @@ void FProcessor::Write (FWadWriter &out)
 	Level.Blockmap = new WORD[Level.BlockmapSize];
 	memcpy (Level.Blockmap, blocks, Level.BlockmapSize*sizeof(WORD));
 
-	Level.RejectSize = (Level.NumSectors*Level.NumSectors + 7) / 8;
+	Level.RejectSize = (Level.NumSectors()*Level.NumSectors() + 7) / 8;
 	Level.Reject = NULL;
 
 	switch (RejectMode)
@@ -609,13 +675,13 @@ void FProcessor::Write (FWadWriter &out)
 					}
 					Level.RejectSize = 0;
 				}
-				else if (Level.NumOrgSectors != Level.NumSectors)
+				else if (Level.NumOrgSectors != Level.NumSectors())
 				{
 					// Some sectors have been removed, so fix the reject.
 					BYTE *newreject = FixReject (Level.Reject);
 					delete[] Level.Reject;
 					Level.Reject = newreject;
-					Level.RejectSize = (Level.NumSectors * Level.NumSectors + 7) / 8;
+					Level.RejectSize = (Level.NumSectors() * Level.NumSectors() + 7) / 8;
 				}
 			}
 		}
@@ -744,19 +810,19 @@ void FProcessor::Write (FWadWriter &out)
 BYTE *FProcessor::FixReject (const BYTE *oldreject)
 {
 	int x, y, ox, oy, pnum, opnum;
-	int rejectSize = (Level.NumSectors*Level.NumSectors + 7) / 8;
+	int rejectSize = (Level.NumSectors()*Level.NumSectors() + 7) / 8;
 	BYTE *newreject = new BYTE[rejectSize];
 
 	memset (newreject, 0, rejectSize);
 
-	for (y = 0; y < Level.NumSectors; ++y)
+	for (y = 0; y < Level.NumSectors(); ++y)
 	{
 		oy = Level.OrgSectorMap[y];
-		for (x = 0; x < Level.NumSectors; ++x)
+		for (x = 0; x < Level.NumSectors(); ++x)
 		{
 			ox = Level.OrgSectorMap[x];
-			pnum = y*Level.NumSectors + x;
-			opnum = oy*Level.NumSectors + ox;
+			pnum = y*Level.NumSectors() + x;
+			opnum = oy*Level.NumSectors() + ox;
 
 			if (oldreject[opnum >> 3] & (1 << (opnum & 7)))
 			{
@@ -870,37 +936,39 @@ void FProcessor::WriteLines (FWadWriter &out)
 
 	if (Extended)
 	{
-		for (i = 0; i < Level.NumLines; ++i)
+		MapLineDef2 *Lines = new MapLineDef2[Level.NumLines()];
+		for (i = 0; i < Level.NumLines(); ++i)
 		{
-			Level.Lines[i].v1 = LittleShort(Level.Lines[i].v1);
-			Level.Lines[i].v2 = LittleShort(Level.Lines[i].v2);
-			Level.Lines[i].flags = LittleShort(Level.Lines[i].flags);
-			Level.Lines[i].sidenum[0] = LittleShort(Level.Lines[i].sidenum[0]);
-			Level.Lines[i].sidenum[1] = LittleShort(Level.Lines[i].sidenum[1]);
+			Lines[i].special = Level.Lines[i].special;
+			Lines[i].args[0] = Level.Lines[i].args[0];
+			Lines[i].args[1] = Level.Lines[i].args[1];
+			Lines[i].args[2] = Level.Lines[i].args[2];
+			Lines[i].args[3] = Level.Lines[i].args[3];
+			Lines[i].args[4] = Level.Lines[i].args[4];
+			Lines[i].v1 = LittleShort(WORD(Level.Lines[i].v1));
+			Lines[i].v2 = LittleShort(WORD(Level.Lines[i].v2));
+			Lines[i].flags = LittleShort(WORD(Level.Lines[i].flags));
+			Lines[i].sidenum[0] = LittleShort(WORD(Level.Lines[i].sidenum[0]));
+			Lines[i].sidenum[1] = LittleShort(WORD(Level.Lines[i].sidenum[1]));
 		}
-		out.WriteLump ("LINEDEFS", Level.Lines, Level.NumLines*sizeof(*Level.Lines));
+		out.WriteLump ("LINEDEFS", Lines, Level.NumLines()*sizeof(*Lines));
+		delete[] Lines;
 	}
 	else
 	{
-		MapLineDef *ld = new MapLineDef[Level.NumLines];
+		MapLineDef *ld = new MapLineDef[Level.NumLines()];
 
-		for (i = 0; i < Level.NumLines; ++i)
+		for (i = 0; i < Level.NumLines(); ++i)
 		{
-			short t;
-
-			ld[i].v1 = LittleShort(Level.Lines[i].v1);
-			ld[i].v2 = LittleShort(Level.Lines[i].v2);
-			ld[i].flags = LittleShort(Level.Lines[i].flags);
-			ld[i].sidenum[0] = LittleShort(Level.Lines[i].sidenum[0]);
-			ld[i].sidenum[1] = LittleShort(Level.Lines[i].sidenum[1]);
-
-			t = Level.Lines[i].args[2] + (Level.Lines[i].args[3]<<8);
-			ld[i].special = LittleShort(t);
-
-			t = Level.Lines[i].args[0] + (Level.Lines[i].args[1]<<8);
-			ld[i].tag = LittleShort(t);
+			ld[i].v1 = LittleShort(WORD(Level.Lines[i].v1));
+			ld[i].v2 = LittleShort(WORD(Level.Lines[i].v2));
+			ld[i].flags = LittleShort(WORD(Level.Lines[i].flags));
+			ld[i].sidenum[0] = LittleShort(WORD(Level.Lines[i].sidenum[0]));
+			ld[i].sidenum[1] = LittleShort(WORD(Level.Lines[i].sidenum[1]));
+			ld[i].special = LittleShort(WORD(Level.Lines[i].args[0]));
+			ld[i].tag = LittleShort(WORD(Level.Lines[i].args[1]));
 		}
-		out.WriteLump ("LINEDEFS", ld, Level.NumLines*sizeof(*ld));
+		out.WriteLump ("LINEDEFS", ld, Level.NumLines()*sizeof(*ld));
 		delete[] ld;
 	}
 }
@@ -908,17 +976,32 @@ void FProcessor::WriteLines (FWadWriter &out)
 void FProcessor::WriteSides (FWadWriter &out)
 {
 	int i;
+	MapSideDef *Sides = new MapSideDef[Level.NumSides()];
 
-	for (i = 0; i < Level.NumSides; ++i)
+	for (i = 0; i < Level.NumSides(); ++i)
 	{
-		Level.Sides[i].sector = LittleShort(Level.Sides[i].sector);
+		Sides[i].textureoffset = Level.Sides[i].textureoffset;
+		Sides[i].rowoffset = Level.Sides[i].rowoffset;
+		memcpy(Sides[i].toptexture, Level.Sides[i].toptexture, 8);
+		memcpy(Sides[i].bottomtexture, Level.Sides[i].bottomtexture, 8);
+		memcpy(Sides[i].midtexture, Level.Sides[i].midtexture, 8);
+		Sides[i].sector = LittleShort(Level.Sides[i].sector);
 	}
-	out.WriteLump ("SIDEDEFS", Level.Sides, Level.NumSides*sizeof(*Level.Sides));
+	out.WriteLump ("SIDEDEFS", Sides, Level.NumSides()*sizeof(*Sides));
+	delete[] Sides;
 }
 
 void FProcessor::WriteSectors (FWadWriter &out)
 {
-	out.WriteLump ("SECTORS", Level.Sectors, Level.NumSectors*sizeof(*Level.Sectors));
+	int i;
+	MapSector *Sectors = new MapSector[Level.NumSectors()];
+
+	for (i = 0; i < Level.NumSectors(); ++i)
+	{
+		Sectors[i] = Level.Sectors[i].data;
+	}
+
+	out.WriteLump ("SECTORS", Sectors, Level.NumSectors()*sizeof(*Sectors));
 }
 
 void FProcessor::WriteSegs (FWadWriter &out)
diff --git a/processor.h b/processor.h
index 07b7dd4..a2578f3 100644
--- a/processor.h
+++ b/processor.h
@@ -43,6 +43,7 @@ public:
 	void Write (FWadWriter &out);
 
 private:
+	void LoadUDMF();
 	void LoadThings ();
 	void LoadLines ();
 	void LoadVertices ();
@@ -92,6 +93,7 @@ private:
 	TArray<FNodeBuilder::FPolyStart> PolyAnchors;
 
 	bool Extended;
+	bool isUDMF;
 
 	FWadReader &Wad;
 	int Lump;
diff --git a/processor_udmf.cpp b/processor_udmf.cpp
new file mode 100644
index 0000000..1ff26ea
--- /dev/null
+++ b/processor_udmf.cpp
@@ -0,0 +1,7 @@
+
+#include "processor.h"
+
+
+void FProcessor::LoadUDMF()
+{
+}
diff --git a/sc_man.cpp b/sc_man.cpp
new file mode 100644
index 0000000..b6ebc4c
--- /dev/null
+++ b/sc_man.cpp
@@ -0,0 +1,733 @@
+/*
+    Reads wad files, builds nodes, and saves new wad files.
+	Copyright (C) 1996 Raven Software 
+    Copyright (C) 2002-2006 Randy Heit
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+// HEADER FILES ------------------------------------------------------------
+
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <limits.h>
+#include "sc_man.h"
+
+#ifdef _MSC_VER
+#pragma warning(disable:4996)
+#endif
+
+// MACROS ------------------------------------------------------------------
+
+#define MAX_STRING_SIZE 4096
+#define ASCII_COMMENT (';')
+#define CPP_COMMENT ('/')
+#define C_COMMENT ('*')
+#define ASCII_QUOTE (34)
+#define LUMP_SCRIPT 1
+#define FILE_ZONE_SCRIPT 2
+
+// TYPES -------------------------------------------------------------------
+
+// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
+
+// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
+
+// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
+
+static void SC_PrepareScript (void);
+static void CheckOpen (void);
+
+// EXTERNAL DATA DECLARATIONS ----------------------------------------------
+
+// PUBLIC DATA DEFINITIONS -------------------------------------------------
+
+char *sc_String;
+int sc_StringLen;
+int sc_Number;
+float sc_Float;
+int sc_Line;
+bool sc_End;
+bool sc_Crossed;
+bool sc_StringQuoted;
+bool sc_FileScripts = false;
+FILE *sc_Out;
+
+// PRIVATE DATA DEFINITIONS ------------------------------------------------
+
+static char *ScriptBuffer;
+static char *ScriptPtr;
+static char *ScriptEndPtr;
+static char StringBuffer[MAX_STRING_SIZE];
+static bool ScriptOpen = false;
+static int ScriptSize;
+static bool AlreadyGot = false;
+static char *SavedScriptPtr;
+static int SavedScriptLine;
+static bool CMode;
+
+// CODE --------------------------------------------------------------------
+
+//==========================================================================
+//
+// SC_OpenFile
+//
+// Loads a script (from a file). Uses the new/delete memory allocator for
+// memory allocation and de-allocation.
+//
+//==========================================================================
+
+void SC_OpenFile (const char *name)
+{
+	SC_Close ();
+	FILE * f = fopen(name, "rb");
+	if (f == NULL)
+	{
+		printf("%s: file not found\n", name);
+		exit(1);
+	}
+	fseek(f, 0, SEEK_END);
+	ScriptSize = ftell(f);
+	fseek(f, 0, SEEK_SET);
+	ScriptBuffer = (char*)malloc(ScriptSize);
+	if (ScriptSize != int(fread(ScriptBuffer, 1, ScriptSize, f)))
+	{
+		fclose(f);
+		printf("%s: unable to read file\n", name);
+		exit(1);
+	}
+	fclose(f);
+	SC_PrepareScript ();
+}
+
+//==========================================================================
+//
+// SC_PrepareScript
+//
+// Prepares a script for parsing.
+//
+//==========================================================================
+
+static void SC_PrepareScript (void)
+{
+	ScriptPtr = ScriptBuffer;
+	ScriptEndPtr = ScriptPtr + ScriptSize;
+	sc_Line = 1;
+	sc_End = false;
+	ScriptOpen = true;
+	sc_String = StringBuffer;
+	AlreadyGot = false;
+	SavedScriptPtr = NULL;
+	CMode = false;
+}
+
+//==========================================================================
+//
+// SC_Close
+//
+//==========================================================================
+
+void SC_Close (void)
+{
+	if (ScriptOpen)
+	{
+		if (ScriptBuffer)
+		{
+			free(ScriptBuffer);
+		}
+		ScriptBuffer = NULL;
+		ScriptOpen = false;
+	}
+}
+
+//==========================================================================
+//
+// SC_SavePos
+//
+// Saves the current script location for restoration later
+//
+//==========================================================================
+
+void SC_SavePos (void)
+{
+	CheckOpen ();
+	if (sc_End)
+	{
+		SavedScriptPtr = NULL;
+	}
+	else
+	{
+		SavedScriptPtr = ScriptPtr;
+		SavedScriptLine = sc_Line;
+	}
+}
+
+//==========================================================================
+//
+// SC_RestorePos
+//
+// Restores the previously saved script location
+//
+//==========================================================================
+
+void SC_RestorePos (void)
+{
+	if (SavedScriptPtr)
+	{
+		ScriptPtr = SavedScriptPtr;
+		sc_Line = SavedScriptLine;
+		sc_End = false;
+		AlreadyGot = false;
+	}
+}
+
+//==========================================================================
+//
+// SC_SetCMode
+//
+// Enables/disables C mode. In C mode, more characters are considered to
+// be whole words than in non-C mode.
+//
+//==========================================================================
+
+void SC_SetCMode (bool cmode)
+{
+	CMode = cmode;
+}
+
+//==========================================================================
+//
+// SC_GetString
+//
+//==========================================================================
+
+bool SC_GetString (bool multiline)
+{
+	char *text;
+	bool foundToken;
+
+	CheckOpen();
+	if (AlreadyGot)
+	{
+		AlreadyGot = false;
+		return true;
+	}
+	foundToken = false;
+	sc_Crossed = false;
+	sc_StringQuoted = false;
+	if (ScriptPtr >= ScriptEndPtr)
+	{
+		sc_End = true;
+		return false;
+	}
+	while (foundToken == false)
+	{
+		while (ScriptPtr < ScriptEndPtr && *ScriptPtr <= ' ')
+		{
+			if (*ScriptPtr++ == '\n')
+			{
+				sc_Line++;
+				sc_Crossed = true;
+			}
+		}
+		if (ScriptPtr >= ScriptEndPtr)
+		{
+			sc_End = true;
+			return false;
+		}
+		if ((CMode || *ScriptPtr != ASCII_COMMENT) &&
+			!(ScriptPtr[0] == CPP_COMMENT && ScriptPtr < ScriptEndPtr - 1 &&
+			  (ScriptPtr[1] == CPP_COMMENT || ScriptPtr[1] == C_COMMENT)))
+		{ // Found a token
+			foundToken = true;
+		}
+		else
+		{ // Skip comment
+			if (ScriptPtr[0] == CPP_COMMENT && ScriptPtr[1] == C_COMMENT)
+			{	// C comment
+				while (ScriptPtr[0] != C_COMMENT || ScriptPtr[1] != CPP_COMMENT)
+				{
+					if (ScriptPtr[0] == '\n')
+					{
+						sc_Line++;
+						sc_Crossed = true;
+					}
+					fputc(ScriptPtr[0], sc_Out);
+					ScriptPtr++;
+					if (ScriptPtr >= ScriptEndPtr - 1)
+					{
+						sc_End = true;
+						return false;
+					}
+					fputs("*/", sc_Out);
+				}
+				ScriptPtr += 2;
+			}
+			else
+			{	// C++ comment
+				while (*ScriptPtr++ != '\n')
+				{
+					fputc(ScriptPtr[-1], sc_Out);
+					if (ScriptPtr >= ScriptEndPtr)
+					{
+						sc_End = true;
+						return false;
+					}
+				}
+				sc_Line++;
+				sc_Crossed = true;
+				fputc('\n', sc_Out);
+			}
+		}
+	}
+	text = sc_String;
+	if (*ScriptPtr == ASCII_QUOTE)
+	{ // Quoted string - return string including the quotes
+		*text++ = *ScriptPtr++;
+		sc_StringQuoted = true;
+		while (*ScriptPtr != ASCII_QUOTE)
+		{
+			if (multiline && *ScriptPtr == '\n')
+			{
+				*text++ = '"';
+				*text++ = ',';
+				*text++ = '\n';
+				*text++ = '\t';
+				*text++ = '\t';
+				*text++ = '"';
+				ScriptPtr++;
+				continue;
+			}
+			else if (*ScriptPtr < ' ')
+			{
+				ScriptPtr++;
+			}
+			else
+			{
+				*text++ = *ScriptPtr++;
+			}
+			if (ScriptPtr == ScriptEndPtr
+				|| text == &sc_String[MAX_STRING_SIZE-1])
+			{
+				break;
+			}
+		}
+		*text++ = '"';
+		ScriptPtr++;
+	}
+	else
+	{ // Normal string
+		static const char *stopchars;
+
+		if (CMode)
+		{
+			stopchars = "`~!@#$%^&*(){}[]/=\?+|;:<>,";
+
+			// '-' can be its own token, or it can be part of a negative number
+			if (*ScriptPtr == '-')
+			{
+				*text++ = '-';
+				ScriptPtr++;
+				if (ScriptPtr < ScriptEndPtr || (*ScriptPtr >= '0' && *ScriptPtr <= '9'))
+				{
+					goto grabtoken;
+				}
+				goto gottoken;
+			}
+		}
+		else
+		{
+			stopchars = "{}|=";
+		}
+		if (strchr (stopchars, *ScriptPtr))
+		{
+			*text++ = *ScriptPtr++;
+		}
+		else
+		{
+grabtoken:
+			while ((*ScriptPtr > ' ') && (strchr (stopchars, *ScriptPtr) == NULL)
+				&& (CMode || *ScriptPtr != ASCII_COMMENT)
+				&& !(ScriptPtr[0] == CPP_COMMENT && (ScriptPtr < ScriptEndPtr - 1) &&
+					 (ScriptPtr[1] == CPP_COMMENT || ScriptPtr[1] == C_COMMENT)))
+			{
+				*text++ = *ScriptPtr++;
+				if (ScriptPtr == ScriptEndPtr
+					|| text == &sc_String[MAX_STRING_SIZE-1])
+				{
+					break;
+				}
+			}
+		}
+	}
+gottoken:
+	*text = 0;
+	sc_StringLen = int(text - sc_String);
+	return true;
+}
+
+//==========================================================================
+//
+// SC_MustGetString
+//
+//==========================================================================
+
+void SC_MustGetString (void)
+{
+	if (SC_GetString () == false)
+	{
+		SC_ScriptError ("Missing string (unexpected end of file).");
+	}
+}
+
+//==========================================================================
+//
+// SC_MustGetStringName
+//
+//==========================================================================
+
+void SC_MustGetStringName (const char *name)
+{
+	SC_MustGetString ();
+	if (SC_Compare (name) == false)
+	{
+		SC_ScriptError ("Expected '%s', got '%s'.", name, sc_String);
+	}
+}
+
+//==========================================================================
+//
+// SC_CheckString
+//
+// Checks if the next token matches the specified string. Returns true if
+// it does. If it doesn't, it ungets it and returns false.
+//==========================================================================
+
+bool SC_CheckString (const char *name)
+{
+	if (SC_GetString ())
+	{
+		if (SC_Compare (name))
+		{
+			return true;
+		}
+		SC_UnGet ();
+	}
+	return false;
+}
+
+//==========================================================================
+//
+// SC_GetNumber
+//
+//==========================================================================
+
+bool SC_GetNumber (void)
+{
+	char *stopper;
+
+	CheckOpen ();
+	if (SC_GetString())
+	{
+		if (strcmp (sc_String, "MAXINT") == 0)
+		{
+			sc_Number = INT_MAX;
+		}
+		else
+		{
+			sc_Number = strtol (sc_String, &stopper, 0);
+			if (*stopper != 0)
+			{
+				SC_ScriptError ("SC_GetNumber: Bad numeric constant \"%s\".", sc_String);
+			}
+		}
+		sc_Float = (float)sc_Number;
+		return true;
+	}
+	else
+	{
+		return false;
+	}
+}
+
+//==========================================================================
+//
+// SC_MustGetNumber
+//
+//==========================================================================
+
+void SC_MustGetNumber (void)
+{
+	if (SC_GetNumber() == false)
+	{
+		SC_ScriptError ("Missing integer (unexpected end of file).");
+	}
+}
+
+//==========================================================================
+//
+// SC_CheckNumber
+// similar to SC_GetNumber but ungets the token if it isn't a number 
+// and does not print an error
+//
+//==========================================================================
+
+bool SC_CheckNumber (void)
+{
+	char *stopper;
+
+	//CheckOpen ();
+	if (SC_GetString())
+	{
+		if (strcmp (sc_String, "MAXINT") == 0)
+		{
+			sc_Number = INT_MAX;
+		}
+		else
+		{
+			sc_Number = strtol (sc_String, &stopper, 0);
+			if (*stopper != 0)
+			{
+				SC_UnGet();
+				return false;
+			}
+		}
+		sc_Float = (float)sc_Number;
+		return true;
+	}
+	else
+	{
+		return false;
+	}
+}
+
+//==========================================================================
+//
+// SC_CheckFloat
+// [GRB] Same as SC_CheckNumber, only for floats
+//
+//==========================================================================
+
+bool SC_CheckFloat (void)
+{
+	char *stopper;
+
+	//CheckOpen ();
+	if (SC_GetString())
+	{
+		sc_Float = (float)strtod (sc_String, &stopper);
+		if (*stopper != 0)
+		{
+			SC_UnGet();
+			return false;
+		}
+		return true;
+	}
+	else
+	{
+		return false;
+	}
+}
+
+
+//==========================================================================
+//
+// SC_GetFloat
+//
+//==========================================================================
+
+bool SC_GetFloat (void)
+{
+	char *stopper;
+
+	CheckOpen ();
+	if (SC_GetString())
+	{
+		sc_Float = (float)strtod (sc_String, &stopper);
+		if (*stopper != 0)
+		{
+			SC_ScriptError("SC_GetFloat: Bad numeric constant \"%s\".\n",sc_String);
+		}
+		sc_Number = (int)sc_Float;
+		return true;
+	}
+	else
+	{
+		return false;
+	}
+}
+
+//==========================================================================
+//
+// SC_MustGetFloat
+//
+//==========================================================================
+
+void SC_MustGetFloat (void)
+{
+	if (SC_GetFloat() == false)
+	{
+		SC_ScriptError ("Missing floating-point number (unexpected end of file).");
+	}
+}
+
+//==========================================================================
+//
+// SC_UnGet
+//
+// Assumes there is a valid string in sc_String.
+//
+//==========================================================================
+
+void SC_UnGet (void)
+{
+	AlreadyGot = true;
+}
+
+//==========================================================================
+//
+// SC_Check
+//
+// Returns true if another token is on the current line.
+//
+//==========================================================================
+
+/*
+bool SC_Check(void)
+{
+	char *text;
+
+	CheckOpen();
+	text = ScriptPtr;
+	if(text >= ScriptEndPtr)
+	{
+		return false;
+	}
+	while(*text <= 32)
+	{
+		if(*text == '\n')
+		{
+			return false;
+		}
+		text++;
+		if(text == ScriptEndPtr)
+		{
+			return false;
+		}
+	}
+	if(*text == ASCII_COMMENT)
+	{
+		return false;
+	}
+	return true;
+}
+*/
+
+//==========================================================================
+//
+// SC_MatchString
+//
+// Returns the index of the first match to sc_String from the passed
+// array of strings, or -1 if not found.
+//
+//==========================================================================
+
+int SC_MatchString (const char **strings)
+{
+	int i;
+
+	for (i = 0; *strings != NULL; i++)
+	{
+		if (SC_Compare (*strings++))
+		{
+			return i;
+		}
+	}
+	return -1;
+}
+
+//==========================================================================
+//
+// SC_MustMatchString
+//
+//==========================================================================
+
+int SC_MustMatchString (const char **strings)
+{
+	int i;
+
+	i = SC_MatchString (strings);
+	if (i == -1)
+	{
+		SC_ScriptError (NULL);
+	}
+	return i;
+}
+
+//==========================================================================
+//
+// SC_Compare
+//
+//==========================================================================
+
+bool SC_Compare (const char *text)
+{
+#ifdef _MSC_VER
+	return (_stricmp (text, sc_String) == 0);
+#else
+	return (strcasecmp (text, sc_String) == 0);
+#endif
+}
+
+//==========================================================================
+//
+// SC_ScriptError
+//
+//==========================================================================
+
+void SC_ScriptError (const char *message, ...)
+{
+	char composed[2048];
+	if (message == NULL)
+	{
+		message = "Bad syntax.";
+	}
+
+	va_list arglist;
+	va_start (arglist, message);
+	vsprintf (composed, message, arglist);
+	va_end (arglist);
+
+	printf ("Script error, line %d:\n%s\n", sc_Line, composed);
+	exit(1);
+}
+
+//==========================================================================
+//
+// CheckOpen
+//
+//==========================================================================
+
+static void CheckOpen(void)
+{
+	if (ScriptOpen == false)
+	{
+		printf ("SC_ call before SC_Open().\n");
+		exit(1);
+	}
+}
diff --git a/sc_man.h b/sc_man.h
new file mode 100644
index 0000000..719b6b5
--- /dev/null
+++ b/sc_man.h
@@ -0,0 +1,44 @@
+#ifndef __SC_MAN_H__
+#define __SC_MAN_H__
+
+void SC_Open (const char *name);
+void SC_OpenFile (const char *name);
+void SC_OpenMem (const char *name, char *buffer, int size);
+void SC_OpenLumpNum (int lump, const char *name);
+void SC_Close (void);
+void SC_SetCMode (bool cmode);
+void SC_SetEscape (bool esc);
+void SC_SavePos (void);
+void SC_RestorePos (void);
+bool SC_GetString (bool multiline = false);
+void SC_MustGetString (void);
+void SC_MustGetStringName (const char *name);
+bool SC_CheckString (const char *name);
+bool SC_GetNumber (void);
+void SC_MustGetNumber (void);
+bool SC_CheckNumber (void);
+bool SC_CheckFloat (void);
+bool SC_GetFloat (void);
+void SC_MustGetFloat (void);
+void SC_UnGet (void);
+//boolean SC_Check(void);
+bool SC_Compare (const char *text);
+int SC_MatchString (const char **strings);
+int SC_MustMatchString (const char **strings);
+void SC_ScriptError (const char *message, ...);
+void SC_SaveScriptState();
+void SC_RestoreScriptState();	
+
+extern char *sc_String;
+extern int sc_StringLen;
+extern int sc_Number;
+extern float sc_Float;
+extern int sc_Line;
+extern bool sc_End;
+extern bool sc_Crossed;
+extern bool sc_FileScripts;
+extern bool sc_StringQuoted;
+extern char *sc_ScriptsDir;
+extern FILE *sc_Out;
+
+#endif //__SC_MAN_H__
diff --git a/tarray.h b/tarray.h
index edd3414..1c57503 100644
--- a/tarray.h
+++ b/tarray.h
@@ -3,7 +3,7 @@
 ** Templated, automatically resizing array
 **
 **---------------------------------------------------------------------------
-** Copyright 1998-2006 Randy Heit
+** Copyright 1998-2007 Randy Heit
 ** All rights reserved.
 **
 ** Redistribution and use in source and binary forms, with or without
@@ -37,10 +37,19 @@
 
 #include <stdlib.h>
 #include <assert.h>
-#include <malloc.h>
 #include <new>
 
-template <class T>
+#if !defined(_WIN32)
+#include <inttypes.h>		// for intptr_t
+#elif !defined(_MSC_VER)
+#include <stdint.h>			// for mingw
+#endif
+
+// TArray -------------------------------------------------------------------
+
+// T is the type stored in the array.
+// TT is the type returned by operator().
+template <class T, class TT=T>
 class TArray
 {
 public:
@@ -108,10 +117,16 @@ public:
 			Most = 0;
 		}
 	}
+	// Return a reference to an element
 	T &operator[] (unsigned int index) const
 	{
 		return Array[index];
 	}
+	// Returns the value of an element
+	TT operator() (unsigned int index) const
+	{
+		return Array[index];
+	}
 	unsigned int Push (const T &item)
 	{
 		Grow (1);
@@ -133,10 +148,30 @@ public:
 		if (index < Count)
 		{
 			Array[index].~T();
-			memmove (&Array[index], &Array[index+1], sizeof(T)*(Count - index - 1));
-			Count--;
+			if (index < --Count)
+			{
+				memmove (&Array[index], &Array[index+1], sizeof(T)*(Count - index));
+			}
 		}
 	}
+
+	void Delete (unsigned int index, int deletecount)
+	{
+		if (index + deletecount > Count) deletecount = Count - index;
+		if (deletecount > 0)
+		{
+			for(int i = 0; i < deletecount; i++)
+			{
+				Array[index + i].~T();
+			}
+			Count -= deletecount;
+			if (index < Count)
+			{
+				memmove (&Array[index], &Array[index+deletecount], sizeof(T)*(Count - index));
+			}
+		}
+	}
+
 	// Inserts an item into the array, shifting elements as needed
 	void Insert (unsigned int index, const T &item)
 	{
@@ -217,6 +252,10 @@ public:
 		Grow (amount);
 		unsigned int place = Count;
 		Count += amount;
+		for (unsigned int i = place; i < Count; ++i)
+		{
+			::new((void *)&Array[i]) T;
+		}
 		return place;
 	}
 	unsigned int Size () const
@@ -252,7 +291,7 @@ private:
 			}
 			for (unsigned int i = 0; i < Count; ++i)
 			{
-				Array[i] = other.Array[i];
+				::new(&Array[i]) T(other.Array[i]);
 			}
 		}
 		else
@@ -281,12 +320,29 @@ private:
 	}
 };
 
-// An array with accessors that automatically grow the
-// array as needed. But can still be used as a normal
-// TArray if needed. Used by ACS world and global arrays.
+// TDeletingArray -----------------------------------------------------------
+// An array that deletes its elements when it gets deleted.
+template<class T, class TT=T>
+class TDeletingArray : public TArray<T, TT>
+{
+public:
+	~TDeletingArray<T, TT> ()
+	{
+		for (unsigned int i = 0; i < TArray<T,TT>::Size(); ++i)
+		{
+			if ((*this)[i] != NULL) 
+				delete (*this)[i];
+		}
+	}
+};
 
-template <class T>
-class TAutoGrowArray : public TArray<T>
+// TAutoGrowArray -----------------------------------------------------------
+// An array with accessors that automatically grow the array as needed.
+// It can still be used as a normal TArray if needed. ACS uses this for
+// world and global arrays.
+
+template <class T, class TT=T>
+class TAutoGrowArray : public TArray<T, TT>
 {
 public:
 	T GetVal (unsigned int index)
@@ -299,6 +355,8 @@ public:
 	}
 	void SetVal (unsigned int index, T val)
 	{
+		if ((int)index < 0) return;	// These always result in an out of memory condition.
+
 		if (index >= this->Size())
 		{
 			this->Resize (index + 1);
@@ -307,4 +365,5 @@ public:
 	}
 };
 
+
 #endif //__TARRAY_H__
diff --git a/view.cpp b/view.cpp
index f6eb22d..268d048 100644
--- a/view.cpp
+++ b/view.cpp
@@ -576,7 +576,7 @@ static int DesiredSector;
 
 static void DrawLevelReject (HDC dc)
 {
-	int seeFromRow = DesiredSector * Level->NumSectors;
+	int seeFromRow = DesiredSector * Level->NumSectors();
 	HPEN oldPen;
 	HPEN cantSee;
 	HPEN canSee;
@@ -589,7 +589,7 @@ static void DrawLevelReject (HDC dc)
 	oldPen = (HPEN)SelectObject (dc, canSee);
 	enum { UNDECIDED, CANT_SEE, CAN_SEE, SEE_FROM } choice, prevchoice = CAN_SEE;
 
-	for (int i = 0; i < Level->NumLines; ++i)
+	for (int i = 0; i < Level->NumLines(); ++i)
 	{
 		choice = UNDECIDED;
 
diff --git a/wad.cpp b/wad.cpp
index 8aae8b9..25cd725 100644
--- a/wad.cpp
+++ b/wad.cpp
@@ -161,11 +161,27 @@ int FWadReader::FindMapLump (const char *name, int map) const
 	return -1;
 }
 
+bool FWadReader::isUDMF (int index) const
+{
+	index++;
+
+	if (strnicmp(Lumps[index].Name, "TEXTMAP", 8) == NULL)
+	{
+		// UDMF map
+		return true;
+	}
+	return false;
+}
+
+
 bool FWadReader::IsMap (int index) const
 {
 	int i, j;
 
+	if (isUDMF(index)) return true;
+
 	index++;
+
 	for (i = j = 0; i < 12; ++i)
 	{
 		if (strnicmp (Lumps[index+j].Name, MapLumpNames[i], 8) != 0)
@@ -279,7 +295,18 @@ int FWadReader::LumpAfterMap (int i) const
 {
 	int j, k;
 
-	++i;
+	if (isUDMF(i))
+	{
+		// UDMF map
+		i += 2;
+		while (strnicmp(Lumps[i].Name, "ENDMAP", 8) != NULL && i < Header.NumLumps)
+		{
+			i++;
+		}
+		return i;
+	}
+
+	i++;
 	for (j = k = 0; j < 12; ++j)
 	{
 		if (strnicmp (Lumps[i+k].Name, MapLumpNames[j], 8) != 0)
diff --git a/wad.h b/wad.h
index f6402da..b7a06ee 100644
--- a/wad.h
+++ b/wad.h
@@ -32,6 +32,7 @@ public:
 	~FWadReader ();
 
 	bool IsIWAD () const;
+	bool isUDMF(int lump) const;
 	int FindLump (const char *name, int index=0) const;
 	int FindMapLump (const char *name, int map) const;
 	int FindGLLump (const char *name, int glheader) const;
diff --git a/zdbsp.h b/zdbsp.h
index 5d53a47..a6ce383 100644
--- a/zdbsp.h
+++ b/zdbsp.h
@@ -66,6 +66,7 @@ typedef uint32_t angle_t;
 
 angle_t PointToAngle (fixed_t x, fixed_t y);
 
+static const DWORD NO_MAP_INDEX = 0xffffffff;
 static const WORD NO_INDEX = 0xffff;
 static const angle_t ANGLE_MAX = 0xffffffff;
 static const DWORD DWORD_MAX = 0xffffffff;
diff --git a/zdbsp_vs2005.vcproj b/zdbsp_vs2005.vcproj
index e57d26c..2cb4f21 100644
--- a/zdbsp_vs2005.vcproj
+++ b/zdbsp_vs2005.vcproj
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="Windows-1252"?>
 <VisualStudioProject
 	ProjectType="Visual C++"
-	Version="8.00"
+	Version="8,00"
 	Name="zdbsp_vs2005"
 	ProjectGUID="{E628034A-AE64-43B5-8CF4-668D07041C35}"
 	RootNamespace="zdbsp_vs2005"
@@ -364,6 +364,14 @@
 				RelativePath=".\processor.cpp"
 				>
 			</File>
+			<File
+				RelativePath=".\processor_udmf.cpp"
+				>
+			</File>
+			<File
+				RelativePath=".\sc_man.cpp"
+				>
+			</File>
 			<File
 				RelativePath=".\view.cpp"
 				>
@@ -402,6 +410,10 @@
 				RelativePath=".\resource.h"
 				>
 			</File>
+			<File
+				RelativePath=".\sc_man.h"
+				>
+			</File>
 			<File
 				RelativePath=".\tarray.h"
 				>