Visual debugging of room bounds

lroom.h

@@ -113,6 +113,8 @@ public:
 	LRoom();
 	Spatial * GetGodotRoom() const;
 
+	// retained purely for debugging visualization
+	Geometry::MeshData m_Bound_MeshData;
 };
 
 

lroom_converter.cpp

@@ -253,6 +253,22 @@ bool LRoomConverter::Convert_Bound(LRoom &lroom, MeshInstance * pMI)
 			}
 
 			LPRINT(2, "\t\t\tcontained " + itos(lroom.m_Bound.m_Planes.size()) + " planes.");
+
+			// make a copy of the mesh data for debugging
+			// note this could be avoided in release builds? NYI
+			lroom.m_Bound_MeshData = md;
+
+//			for (int f=0; f<md.faces.size(); f++)
+//			{
+//				String sz;
+//				sz = "face " + itos (f) + ", indices ";
+//				for (int i=0; i<md.faces[f].indices.size(); i++)
+//				{
+//					sz += itos(md.faces[f].indices[i]) + ", ";
+//				}
+//				LPRINT(2, sz);
+//			}
+
 			return true;
 		}
 	}

lroom_manager.cpp

@@ -40,6 +40,7 @@ LRoomManager::LRoomManager()
 	m_pPrev_VisibleRoomList = &m_VisibleRoomList_B;
 
 	m_bDebugPlanes = false;
+	m_bDebugBounds = false;
 }
 
 int LRoomManager::FindClosestRoom(const Vector3 &pt) const
@@ -206,10 +207,20 @@ void LRoomManager::CreateDebug()
 //	m_mat_Debug_Planes->set_flag(SpatialMaterial::FLAG_ALBEDO_FROM_VERTEX_COLOR, true);
 //	m_mat_Debug_Planes->set_flag(SpatialMaterial::FLAG_SRGB_VERTEX_COLOR, true);
 	m_mat_Debug_Planes->set_albedo(Color(1, 0, 1, 1));
-
 	p->set_material_override(m_mat_Debug_Planes);
-
 	p->hide();
+
+
+	ImmediateGeometry * b = memnew(ImmediateGeometry);
+	b->set_name("debug_bounds");
+	add_child(b);
+	m_ID_DebugBounds = b->get_instance_id();
+	m_mat_Debug_Bounds = Ref<SpatialMaterial>(memnew(SpatialMaterial));
+	//m_mat_Debug_Bounds->set_flag(SpatialMaterial::FLAG_UNSHADED, true);
+	m_mat_Debug_Bounds->set_feature(SpatialMaterial::FEATURE_TRANSPARENT, true);
+	m_mat_Debug_Bounds->set_albedo(Color(0, 0, 1, 0.4));
+	b->set_material_override(m_mat_Debug_Bounds);
+	b->hide();
 }
 
 
@@ -424,6 +435,22 @@ Node * LRoomManager::rooms_get_room(int room_id)
 	return pRoom->GetGodotRoom();
 }
 
+void LRoomManager::rooms_set_debug_bounds(bool bActive)
+{
+	m_bDebugBounds = bActive;
+
+	Object * pObj = ObjectDB::get_instance(m_ID_DebugBounds);
+	ImmediateGeometry * im = Object::cast_to<ImmediateGeometry>(pObj);
+	if (!im)
+		return;
+
+	if (bActive)
+		im->show();
+	else
+		im->hide();
+}
+
+
 void LRoomManager::rooms_set_debug_planes(bool bActive)
 {
 	m_bDebugPlanes = bActive;
@@ -437,7 +464,6 @@ void LRoomManager::rooms_set_debug_planes(bool bActive)
 		im->show();
 	else
 		im->hide();
-
 }
 
 
@@ -648,18 +674,17 @@ void LRoomManager::FrameUpdate()
 	// hide all the DOB
 
 	// draw debug
-	FrameUpdate_DrawDebug(cam);
+	FrameUpdate_DrawDebug(cam, *pRoom);
 
 	// when running, emit less debugging output so as not to choke the IDE
 	Lawn::LDebug::m_bRunning = true;
 }
 
 
-void LRoomManager::FrameUpdate_DrawDebug(const LCamera &cam)
+void LRoomManager::FrameUpdate_DrawDebug(const LCamera &cam, const LRoom &lroom)
+{
+	if (m_bDebugPlanes)
 	{
-	if (!m_bDebugPlanes)
-		return;
-
 		Vector3 ptCam = cam.m_ptPos;
 		// slight adjustment to prevent parallel lines in viewport
 		ptCam += (cam.m_ptDir * 0.1f);
@@ -683,6 +708,38 @@ void LRoomManager::FrameUpdate_DrawDebug(const LCamera &cam)
 		im->end();
 	}
 
+	// if debug bounds are on and there is a bound for this room
+	const Geometry::MeshData &md = lroom.m_Bound_MeshData;
+	if (m_bDebugBounds && md.faces.size())
+	{
+		Object * pObj = ObjectDB::get_instance(m_ID_DebugBounds);
+		ImmediateGeometry * im = Object::cast_to<ImmediateGeometry>(pObj);
+		if (!im)
+			return;
+
+		im->clear();
+
+		im->begin(Mesh::PRIMITIVE_TRIANGLES, NULL);
+
+		for (int n=0; n<md.faces.size(); n++)
+		{
+			const Geometry::MeshData::Face &f = md.faces[n];
+
+			int numTris = f.indices.size() - 2;
+
+			for (int t=0; t<numTris; t++)
+			{
+				im->set_normal(f.plane.normal);
+				im->add_vertex(md.vertices[f.indices[0]]);
+				im->add_vertex(md.vertices[f.indices[t+1]]);
+				im->add_vertex(md.vertices[f.indices[t+2]]);
+			}
+		}
+
+		im->end();
+	}
+}
+
 void LRoomManager::_notification(int p_what) {
 
 	switch (p_what) {
@@ -718,6 +775,7 @@ void LRoomManager::_bind_methods()
 	ClassDB::bind_method(D_METHOD("rooms_log_frame"), &LRoomManager::rooms_log_frame);
 	ClassDB::bind_method(D_METHOD("rooms_set_active"), &LRoomManager::rooms_set_active);
 	ClassDB::bind_method(D_METHOD("rooms_set_debug_planes"), &LRoomManager::rooms_set_debug_planes);
+	ClassDB::bind_method(D_METHOD("rooms_set_debug_bounds"), &LRoomManager::rooms_set_debug_bounds);
 
 
 	// functions to add dynamic objects to the culling system

lroom_manager.h

@@ -81,8 +81,8 @@ public:
 
 	// turn on and off culling for debugging
 	void rooms_set_active(bool bActive);
-
 	void rooms_set_debug_planes(bool bActive);
+	void rooms_set_debug_bounds(bool bActive);
 
 	// 0 to 6 .. defaults to 4 which is (2) in our priorities (i.e. 6 - level)
 	void rooms_set_logging(int level);
@@ -148,7 +148,7 @@ private:
 	void FrameUpdate_FrustumOnly();
 
 	// draw planes and room hulls
-	void FrameUpdate_DrawDebug(const LCamera &cam);
+	void FrameUpdate_DrawDebug(const LCamera &cam, const LRoom &lroom);
 
 	// find which room is linked by a portal
 	LRoom &Portal_GetLinkedRoom(const LPortal &port);
@@ -160,12 +160,15 @@ private:
 public:
 	// whether debug planes is switched on
 	bool m_bDebugPlanes;
+	bool m_bDebugBounds;
 
 	// the planes are shown as a list of lines from the camera to the portal verts
 	LVector<Vector3> m_DebugPlanes;
 private:
 	ObjectID m_ID_DebugPlanes;
+	ObjectID m_ID_DebugBounds;
 	Ref<SpatialMaterial> m_mat_Debug_Planes;
+	Ref<SpatialMaterial> m_mat_Debug_Bounds;
 };
 
 #endif