Tangible creation and destruction in place

Source/Integration/TangibleManager.h

@@ -61,10 +61,21 @@ public:
 	
 	// Update the 'NearAccordingToLuprex' flags.
 	//
-	// Also creates any tangibles that are in the near-list,
-	// if they don't already exist.
+	// Also creates stub tangibles for every Id in the list.
 	//
-	void UpdateNear(IdView near);
+	void UpdateNearAccordingToLuprex(IdView near);
+
+	// Recalculate the 'NearAccordingToUnreal' flags.
+	//
+	void RecalcNearAccordingToUnreal(int64 player, double radius);
+	
+	// Delete Far Tangibles.
+	//
+	// Any tangible whose 'NearAccordingToLuprex' and 'NearAccordingToUnreal'
+	// flags are both false is deleted.  You probably want to update both
+	// flags by calling the two routines above before calling this.
+	//
+	void DeleteFarawayTangibles();
 
 	// Given an array of tangibles, return an array of tangible Ids.
 	//