diff --git a/docs/rh-log.txt b/docs/rh-log.txt
index 9b557628c..b40fda7c6 100644
--- a/docs/rh-log.txt
+++ b/docs/rh-log.txt
@@ -1,4 +1,8 @@
 November 29, 2006 (Changes by Graf Zahl)
+- Added global constants to DECORATE so that I can define meaningful flag 
+  names for some DECORATE functions. Technically these will be constants 
+  of the AActor class but that will make them accessible in all other actor 
+  classes.
 - Made the constructor of PSymbolTable inline. Having this a real function 
   adds 100kb to the EXE, mostly needless exception handling code.
 
diff --git a/src/decorations.cpp b/src/decorations.cpp
index cb13927bd..272009479 100644
--- a/src/decorations.cpp
+++ b/src/decorations.cpp
@@ -114,7 +114,7 @@ END_DEFAULTS
 // EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
 
 void ProcessActor(void (*process)(FState *, int));
-void ProcessWeapon(void (*process)(FState *, int));
+void ParseGlobalConst();
 void FinishThingdef();
 void InitDecorateTranslations();
 
@@ -335,6 +335,11 @@ static void ParseDecorate (void (*process)(FState *, int))
 			def = DEF_Projectile;
 			SC_MustGetString ();
 		}
+		else if (SC_Compare ("Const"))
+		{
+			ParseGlobalConst();
+			continue;
+		}
 		else
 		{
 			parent = RUNTIME_CLASS(AActor);
diff --git a/src/thingdef.cpp b/src/thingdef.cpp
index 186f7393a..04277e310 100644
--- a/src/thingdef.cpp
+++ b/src/thingdef.cpp
@@ -2561,6 +2561,23 @@ static void ActorConstDef (AActor *defaults, Baggage &bag)
 	}
 }
 
+//==========================================================================
+//
+// ParseGlobalConst
+//
+// Parses a constant outside an actor definition
+// These will be inserted into AActor's symbol table
+//
+//==========================================================================
+
+void ParseGlobalConst()
+{
+	Baggage bag;
+
+	bag.Info = RUNTIME_CLASS(AActor)->ActorInfo;
+	ActorConstDef(GetDefault<AActor>(), bag);
+}
+
 //==========================================================================
 //
 // ActorActionDef
diff --git a/wadsrc/decorate/constants.txt b/wadsrc/decorate/constants.txt
new file mode 100644
index 000000000..5c9926726
--- /dev/null
+++ b/wadsrc/decorate/constants.txt
@@ -0,0 +1,13 @@
+// Flags for A_CustomMissile
+const int CMF_AIMOFFSET = 1;
+const int CMF_AIMDIRECTION = 2;
+const int CMF_TRACKOWNER = 4;
+const int CMF_CHECKTARGETDEAD = 8;
+
+// Flags for A_SpawnItemEx
+const int SXF_TRANSFERTRANSLATION=1;
+const int SXF_ABSOLUTEPOSITION=2;
+const int SXF_ABSOLUTEANGLE=4;
+const int SXF_ABSOLUTEMOMENTUM=8;
+const int SXF_SETMASTER=16;
+
diff --git a/wadsrc/decorate/decorate.txt b/wadsrc/decorate/decorate.txt
index ec872fd64..b4dee8302 100644
--- a/wadsrc/decorate/decorate.txt
+++ b/wadsrc/decorate/decorate.txt
@@ -1,3 +1,5 @@
+#include "actors/constants.txt"
+
 #include "actors/shared/botstuff.txt"
 #include "actors/shared/blood.txt"
 #include "actors/shared/debris.txt"
diff --git a/wadsrc/decorate/heretic/beast.txt b/wadsrc/decorate/heretic/beast.txt
index 62fd338fa..c89e6a02c 100644
--- a/wadsrc/decorate/heretic/beast.txt
+++ b/wadsrc/decorate/heretic/beast.txt
@@ -80,7 +80,8 @@ ACTOR BeastBall
 	States
 	{
 	Spawn:
-		FRB1 AABBCC 2 A_SpawnItemEx("Puffy", random2[BeastPuff]()*0.015625, random2[BeastPuff]()*0.015625, random2[BeastPuff]()*0.015625, 0,0,0,0,2, 64)
+		FRB1 AABBCC 2 A_SpawnItemEx("Puffy", random2[BeastPuff]()*0.015625, random2[BeastPuff]()*0.015625, random2[BeastPuff]()*0.015625, 
+									0,0,0,0,SXF_ABSOLUTEPOSITION, 64)
 		Loop
 	Death:
 		FRB1 DEFGH 4
diff --git a/wadsrc/decorate/heretic/snake.txt b/wadsrc/decorate/heretic/snake.txt
index 0fb995096..0184da170 100644
--- a/wadsrc/decorate/heretic/snake.txt
+++ b/wadsrc/decorate/heretic/snake.txt
@@ -27,9 +27,9 @@ ACTOR Snake 92
 		Loop
 	Missile:
 		SNKE FF 5 A_FaceTarget
-		SNKE FFF 4 A_CustomMissile("SnakeProjA", 32, 0, 0, 8)
+		SNKE FFF 4 A_CustomMissile("SnakeProjA", 32, 0, 0, CMF_CHECKTARGETDEAD)
 		SNKE FFF 5 A_FaceTarget
-		SNKE F 4 A_CustomMissile("SnakeProjB", 32, 0, 0, 8)
+		SNKE F 4 A_CustomMissile("SnakeProjB", 32, 0, 0, CMF_CHECKTARGETDEAD)
 		Goto See
 	Pain:
 		SNKE E 3
diff --git a/wadsrc/decorate/hexen/centaur.txt b/wadsrc/decorate/hexen/centaur.txt
index 82cc73db8..2ffc045e4 100644
--- a/wadsrc/decorate/hexen/centaur.txt
+++ b/wadsrc/decorate/hexen/centaur.txt
@@ -87,9 +87,9 @@ ACTOR CentaurLeader : Centaur 115
 	{
 	Missile:
 		CENT E 10 A_FaceTarget
-		CENT F 8 Bright A_CustomMissile("CentaurFX", 45, 0, 0, 1)
+		CENT F 8 Bright A_CustomMissile("CentaurFX", 45, 0, 0, CMF_AIMOFFSET)
 		CENT E 10 A_FaceTarget
-		CENT F 8 Bright A_CustomMissile("CentaurFX", 45, 0, 0, 1)
+		CENT F 8 Bright A_CustomMissile("CentaurFX", 45, 0, 0, CMF_AIMOFFSET)
 		Goto See
 	}
 }		
diff --git a/wadsrc/decorate/hexen/demons.txt b/wadsrc/decorate/hexen/demons.txt
index 92c7551e9..5928e5209 100644
--- a/wadsrc/decorate/hexen/demons.txt
+++ b/wadsrc/decorate/hexen/demons.txt
@@ -19,6 +19,7 @@ ACTOR Demon1 31
 	PainSound "DemonPain"
 	DeathSound "DemonDeath"
 	ActiveSound "DemonActive"
+	const int ChunkFlags = SXF_TRANSFERTRANSLATION|SXF_ABSOLUTEMOMENTUM;
 	States
 	{
 	Spawn:
@@ -51,11 +52,11 @@ ACTOR Demon1 31
 		Stop
 	XDeath:
 		DEMN H 6
-		DEMN I 0 A_SpawnItemEx("Demon1Chunk1", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), 9, 90)
-		DEMN I 0 A_SpawnItemEx("Demon1Chunk2", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), 9, 270)
-		DEMN I 0 A_SpawnItemEx("Demon1Chunk3", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), 9, 270)
-		DEMN I 0 A_SpawnItemEx("Demon1Chunk4", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), 9, 270)
-		DEMN I 6 A_SpawnItemEx("Demon1Chunk5", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), 9, 270)
+		DEMN I 0 A_SpawnItemEx("Demon1Chunk1", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), ChunkFlags, 90)
+		DEMN I 0 A_SpawnItemEx("Demon1Chunk2", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), ChunkFlags, 270)
+		DEMN I 0 A_SpawnItemEx("Demon1Chunk3", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), ChunkFlags, 270)
+		DEMN I 0 A_SpawnItemEx("Demon1Chunk4", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), ChunkFlags, 270)
+		DEMN I 6 A_SpawnItemEx("Demon1Chunk5", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), ChunkFlags, 270)
 		Goto Death+2	
 	Ice:
 		DEMN Q 5 A_FreezeDeath
@@ -245,11 +246,11 @@ ACTOR Demon2 : Demon1 8080
 		Stop
 	XDeath:
 		DEM2 H 6
-		DEM2 I 0 A_SpawnItemEx("Demon2Chunk1", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), 9, 90)
-		DEM2 I 0 A_SpawnItemEx("Demon2Chunk2", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), 9, 270)
-		DEM2 I 0 A_SpawnItemEx("Demon2Chunk3", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), 9, 270)
-		DEM2 I 0 A_SpawnItemEx("Demon2Chunk4", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), 9, 270)
-		DEM2 I 6 A_SpawnItemEx("Demon2Chunk5", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), 9, 270)
+		DEM2 I 0 A_SpawnItemEx("Demon2Chunk1", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), ChunkFlags, 90)
+		DEM2 I 0 A_SpawnItemEx("Demon2Chunk2", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), ChunkFlags, 270)
+		DEM2 I 0 A_SpawnItemEx("Demon2Chunk3", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), ChunkFlags, 270)
+		DEM2 I 0 A_SpawnItemEx("Demon2Chunk4", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), ChunkFlags, 270)
+		DEM2 I 6 A_SpawnItemEx("Demon2Chunk5", 0,0,45, 1+(random[DemonChunks](0,255)*0.015625), 1+(random[DemonChunks](0,255)*0.015625), ChunkFlags, 270)
 		Goto Death+2	
 	Ice:
 		DEM2 Q 5 A_FreezeDeath
diff --git a/wadsrc/decorate/hexen/ettin.txt b/wadsrc/decorate/hexen/ettin.txt
index ceaf69a7a..e0038d7a2 100644
--- a/wadsrc/decorate/hexen/ettin.txt
+++ b/wadsrc/decorate/hexen/ettin.txt
@@ -50,7 +50,7 @@ ACTOR Ettin 10030
 		ETTB C 4 A_SpawnItemEx("EttinMace", 0,0,8.5, 
 								random[DropMace](-128,127) * 0.03125,
 								random[DropMace](-128,127) * 0.03125,
-								10 + random[DropMace](0,255) * 0.015625, 0, 4)
+								10 + random[DropMace](0,255) * 0.015625, 0, SXF_ABSOLUTEMOMENTUM)
 		ETTB D 4 A_Scream
 		ETTB E 4 A_QueueCorpse
 		ETTB FGHIJK 4
diff --git a/wadsrc/zdoom.lst b/wadsrc/zdoom.lst
index 71bfb04c2..6474d57ae 100644
--- a/wadsrc/zdoom.lst
+++ b/wadsrc/zdoom.lst
@@ -239,7 +239,8 @@ textcolors.txt				textcolors.txt
 ========
 # Decorate stuff
 
-decorate.txt				decorate/decorate.txt
+decorate.txt								decorate/decorate.txt
+actors/constants.txt						decorate/constants.txt
 
 actors/shared/botstuff.txt					decorate/shared/botstuff.txt
 actors/shared/blood.txt						decorate/shared/blood.txt