private void UpdateBlock(string cacheName,int x, int y, int z, BlockNeighbour[] connected,IPathfindingAgent agent)
		{
			var cache = nodes [cacheName];
			cache [x, y, z].LValue = 0;
			cache [x, y, z].RValue = 0;
			cache [x, y, z].BValue = 0;
			cache [x, y, z].FValue = 0;

			for (int i = 0; i < connected.Length; i++)
			{
				var connect_blocks = connected [i].block;
				if (agent.canUseForPathfinding (connect_blocks)) {

					int xPosition = ((int)connect_blocks.intPosition.x);
					int zPosition = ((int)connect_blocks.intPosition.z);

					int x_diff = xPosition- x;
					int z_diff = zPosition - z;
					if (x_diff == 1 ) {
						//float estimatedReward = futureState.RValue;
						cache [x, y, z].RValue =.00001f;

					} else if (x_diff == -1) {
						//float estimatedReward = futureState.LValue;
						cache [x, y, z].LValue =.00001f;
					} else if (z_diff == 1) {
						//float estimatedReward = futureState.FValue;
						cache [x, y, z].FValue = .00001f;

					} else if (z_diff == -1) {
						//float estimatedReward = futureState.BValue;
						cache [x, y, z].BValue = .00001f;
					}
				}
			}
		}
		public NodeState GetNode(string cacheName,int x, int y,int z,Block associatedBlock,IPathfindingAgent agent)
		{
			var cache = nodes [cacheName];
			if (cache [x, y, z] == null) {
				cache [x, y, z] = new NodeState (this, x, y, z, cacheName, associatedBlock);

				var connected = associatedBlock.getConnected ();
				for (int i = 0; i < connected.Length; i++) {
					int xPos = (int)connected [i].block.intPosition.x;
					int yPos = (int)connected [i].block.intPosition.y;
					int zPos = (int)connected [i].block.intPosition.z;
					if (cache [xPos, yPos, zPos] != null) {
						UpdateBlock (cacheName, xPos, yPos, zPos, cache [xPos, yPos, zPos].AssocaitedBlock.getConnected (), agent);
					}

				}
				UpdateBlock (cacheName, x, y, z, connected, agent);
			}

			return cache [x, y, z];
		}