NWN2: Check for 'natural', 'underground' and 'interior' area bit flags

src/engines/nwn2/area.cpp

@@ -119,6 +119,21 @@ Common::UString Area::getName(const Common::UString &resRef) {
 	return "";
 }
 
+bool Area::getIsAreaNatural() const {
+	// Bit flag for a natural area
+	return (_flags & (1 << 2));
+}
+
+bool Area::getIsAreaAboveGround() const {
+	// Bit flag for an underground area
+	return !(_flags & (1 << 1));
+}
+
+bool Area::getIsAreaInterior() const {
+	// Bit flag for an interior area
+	return (_flags & 1);
+}
+
 const Common::UString &Area::getResRef() {
 	return _resRef;
 }
@@ -293,6 +308,8 @@ void Area::loadARE(const Aurora::GFF3Struct &are) {
 	_width  = are.getUint("Width");
 	_height = are.getUint("Height");
 
+	_flags = are.getUint("Flags");
+
 	if (_hasTerrain)
 		loadTerrain();
 

src/engines/nwn2/area.h

@@ -113,6 +113,12 @@ class Area : public NWN2::Object, public Events::Notifyable {
 
 	/** Return the localized name of an area. */
 	static Common::UString getName(const Common::UString &resRef);
+	/** Return true if the Natural flag is set. */
+	bool getIsAreaNatural() const;
+	/** Return true if the Underground flag is unset. */
+	bool getIsAreaAboveGround() const;
+	/** Return true if the Interior flag is set. */
+	bool getIsAreaInterior() const;
 
 
 protected:
@@ -177,6 +183,8 @@ class Area : public NWN2::Object, public Events::Notifyable {
 
 	bool _visible; ///< Is the area currently visible?
 
+	uint32 _flags;   ///< Natural/Underground bit flags.
+
 	Sound::ChannelHandle _ambientSound; ///< Sound handle of the currently playing sound.
 	Sound::ChannelHandle _ambientMusic; ///< Sound handle of the currently playing music.