TECH TREES WHOO

Implemented procedural tech tree generation by porting GraphSharp to Unity.
Also, some database editor convenience changes.

Assets/Scripts/NIH/Graph#/ISoftMutableGraph.cs

@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+using QuickGraph;
+
+namespace GraphSharp
+{
+	/// <summary>
+	/// Soft mutation means: We can hide the vertices or the edges.
+	/// </summary>
+	/// <typeparam name="TVertex"></typeparam>
+	/// <typeparam name="TEdge"></typeparam>
+	public interface ISoftMutableGraph<TVertex, TEdge> : IBidirectionalGraph<TVertex, TEdge>
+		where TEdge : IEdge<TVertex>
+	{
+		bool HideVertex( TVertex v );
+		bool HideVertex( TVertex v, string tag );
+		void HideVertices( IEnumerable<TVertex> vertices );
+		void HideVertices( IEnumerable<TVertex> vertices, string tag );
+		void HideVerticesIf( Func<TVertex, bool> predicate, string tag );
+		bool IsHiddenVertex( TVertex v );
+		bool UnhideVertex( TVertex v );
+		void UnhideVertexAndEdges( TVertex v );
+		IEnumerable<TVertex> HiddenVertices { get; }
+		int HiddenVertexCount { get; }
+
+		bool HideEdge( TEdge e );
+		bool HideEdge( TEdge e, string tag );
+		void HideEdges( IEnumerable<TEdge> edges );
+		void HideEdges( IEnumerable<TEdge> edges, string tag );
+		void HideEdgesIf( Func<TEdge, bool> predicate, string tag );
+		bool IsHiddenEdge( TEdge e );
+		bool UnhideEdge( TEdge e );
+		void UnhideEdges( IEnumerable<TEdge> edges );
+		void UnhideEdgesIf( Func<TEdge, bool> predicate );
+		IEnumerable<TEdge> HiddenEdgesOf( TVertex v );
+		int HiddenEdgeCountOf( TVertex v );
+		IEnumerable<TEdge> HiddenEdges { get; }
+		int HiddenEdgeCount { get; }
+
+		bool Unhide( string tag );
+		bool UnhideAll( );
+	}
+}