- added GetAngle(bool relative, int target) DECORATE function.

src/thingdef/thingdef_codeptr.cpp

@@ -320,6 +320,40 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, GetDistance)
 	return 0;
 }
 
+//==========================================================================
+//
+// GetAngle
+//
+// NON-ACTION function to get the angle in degrees (normalized to -180..180)
+//
+//==========================================================================
+DEFINE_ACTION_FUNCTION_PARAMS(AActor, GetAngle)
+{
+	if (numret > 0)
+	{
+		assert(ret != NULL);
+		PARAM_SELF_PROLOGUE(AActor);
+		PARAM_BOOL(relative);
+		PARAM_INT_OPT(ptr) { ptr = AAPTR_TARGET; }
+
+		AActor *target = COPY_AAPTR(self, ptr);
+
+		if (!target || target == self)
+		{
+			ret->SetFloat(0);
+		}
+		else
+		{
+			DVector3 diff = self->Vec3To(target);
+			DAngle angto = diff.Angle();
+			if (relative) angto = deltaangle(self->Angles.Yaw, angto);
+			ret->SetFloat(angto.Degrees);
+		}
+		return 1;
+	}
+	return 0;
+}
+
 //==========================================================================
 //
 // GetSpawnHealth

wadsrc/static/actors/actor.txt

@@ -42,6 +42,7 @@ ACTOR Actor native //: Thinker
 	native bool IsPointerEqual(int ptr_select1, int ptr_select2);
 	native int	CountInv(class<Inventory> itemtype, int ptr_select = AAPTR_DEFAULT);
 	native float GetDistance(bool checkz, int ptr = AAPTR_DEFAULT);
+	native float GetAngle(bool relative, int ptr = AAPTR_DEFAULT);
 	native int GetSpawnHealth();
 	native int GetGibHealth();