diff --git a/src/deh_tables.c b/src/deh_tables.c
index cbc411ddd..92bc5d1f1 100644
--- a/src/deh_tables.c
+++ b/src/deh_tables.c
@@ -207,6 +207,8 @@ actionpointer_t actionpointers[] =
 	{{A_SetObjectFlags2},        "A_SETOBJECTFLAGS2"},
 	{{A_RandomState},            "A_RANDOMSTATE"},
 	{{A_RandomStateRange},       "A_RANDOMSTATERANGE"},
+	{{A_StateRangeByAngle},      "A_STATERANGEBYANGLE"},
+	{{A_StateRangeByParameter},  "A_STATERANGEBYPARAMETER"},
 	{{A_DualAction},             "A_DUALACTION"},
 	{{A_RemoteAction},           "A_REMOTEACTION"},
 	{{A_ToggleFlameJet},         "A_TOGGLEFLAMEJET"},
diff --git a/src/info.h b/src/info.h
index dfb0d3c43..2b1e841da 100644
--- a/src/info.h
+++ b/src/info.h
@@ -161,6 +161,8 @@ enum actionnum
 	A_SETOBJECTFLAGS2,
 	A_RANDOMSTATE,
 	A_RANDOMSTATERANGE,
+	A_STATERANGEBYANGLE,
+	A_STATERANGEBYPARAMETER,
 	A_DUALACTION,
 	A_REMOTEACTION,
 	A_TOGGLEFLAMEJET,
@@ -428,6 +430,8 @@ void A_SetObjectFlags();
 void A_SetObjectFlags2();
 void A_RandomState();
 void A_RandomStateRange();
+void A_StateRangeByAngle();
+void A_StateRangeByParameter();
 void A_DualAction();
 void A_RemoteAction();
 void A_ToggleFlameJet();
diff --git a/src/p_enemy.c b/src/p_enemy.c
index 2403ce774..ee3a10200 100644
--- a/src/p_enemy.c
+++ b/src/p_enemy.c
@@ -187,6 +187,8 @@ void A_SetObjectFlags(mobj_t *actor);
 void A_SetObjectFlags2(mobj_t *actor);
 void A_RandomState(mobj_t *actor);
 void A_RandomStateRange(mobj_t *actor);
+void A_StateRangeByAngle(mobj_t *actor);
+void A_StateRangeByParameter(mobj_t *actor);
 void A_DualAction(mobj_t *actor);
 void A_RemoteAction(mobj_t *actor);
 void A_ToggleFlameJet(mobj_t *actor);
@@ -8132,6 +8134,49 @@ void A_RandomStateRange(mobj_t *actor)
 	P_SetMobjState(actor, P_RandomRange(locvar1, locvar2));
 }
 
+// Function: A_StateRangeByAngle
+//
+// Description: Chooses a state within the range supplied, depending on the actor's angle.
+//
+// var1 = Minimum state number to use.
+// var2 = Maximum state number to use. The difference will act as a modulo operator.
+//
+void A_StateRangeByAngle(mobj_t *actor)
+{
+	INT32 locvar1 = var1;
+	INT32 locvar2 = var2;
+
+	if (LUA_CallAction(A_STATERANGEBYANGLE, actor))
+		return;
+
+	if (locvar2 - locvar1 < 0)
+		return; // invalid range
+
+	P_SetMobjState(actor, locvar1 + (AngleFixed(actor->angle)>>FRACBITS % (1 + locvar2 - locvar1)));
+}
+
+// Function: A_StateRangeByParameter
+//
+// Description: Chooses a state within the range supplied, depending on the actor's parameter/extrainfo value.
+//
+// var1 = Minimum state number to use.
+// var2 = Maximum state number to use. The difference will act as a modulo operator.
+//
+void A_StateRangeByParameter(mobj_t *actor)
+{
+	INT32 locvar1 = var1;
+	INT32 locvar2 = var2;
+	UINT8 parameter = (actor->spawnpoint ? actor->spawnpoint->extrainfo : 0);
+
+	if (LUA_CallAction(A_STATERANGEBYANGLE, actor))
+		return;
+
+	if (locvar2 - locvar1 < 0)
+		return; // invalid range
+
+	P_SetMobjState(actor, locvar1 + (parameter % (1 + locvar2 - locvar1)));
+}
+
 // Function: A_DualAction
 //
 // Description: Calls two actions. Be careful, if you reference the same state this action is called from, you can create an infinite loop.