From c23aafee9f3e40c062da76260a03c58ddf9549c4 Mon Sep 17 00:00:00 2001
From: Ben Spiers <ben.spiers22@gmail.com>
Date: Sun, 12 Apr 2015 00:19:49 +0100
Subject: [PATCH] Should fix the NPE in updateTransmitterOnSide.

---
 .../mekanism/api/transmitters/DynamicNetwork.java   | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/main/java/mekanism/api/transmitters/DynamicNetwork.java b/src/main/java/mekanism/api/transmitters/DynamicNetwork.java
index 734f958e8..fd78b865c 100644
--- a/src/main/java/mekanism/api/transmitters/DynamicNetwork.java
+++ b/src/main/java/mekanism/api/transmitters/DynamicNetwork.java
@@ -35,8 +35,6 @@ public abstract class DynamicNetwork<A, N extends DynamicNetwork<A, N>> implemen
 
 	protected Range4D packetRange = null;
 
-	protected int ticksSinceCreate = 0;
-
 	protected int capacity = 0;
 	protected double meanCapacity = 0;
 
@@ -86,11 +84,14 @@ public abstract class DynamicNetwork<A, N extends DynamicNetwork<A, N>> implemen
 			for(Entry<IGridTransmitter<A, N>, EnumSet<ForgeDirection>> entry : changedAcceptors.entrySet())
 			{
 				IGridTransmitter<A, N> transmitter = entry.getKey();
-				EnumSet<ForgeDirection> directionsChanged = entry.getValue();
-
-				for(ForgeDirection side : directionsChanged)
+				if(transmitter.isValid())
 				{
-					updateTransmitterOnSide(transmitter, side);
+					EnumSet<ForgeDirection> directionsChanged = entry.getValue();
+
+					for(ForgeDirection side : directionsChanged)
+					{
+						updateTransmitterOnSide(transmitter, side);
+					}
 				}
 			}