From 7b7423c9f665501ab8e66ab287a9dd0adef0df7c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Florian=20N=C3=BCcke?= <florian@nuecke.de>
Date: Thu, 27 Nov 2014 12:58:08 +0100
Subject: [PATCH] Should fix incorrect caching of screen render state if it was
 rendered before the first init packet. Fixes #694.

---
 src/main/scala/li/cil/oc/client/PacketHandler.scala        | 4 +++-
 src/main/scala/li/cil/oc/common/component/TextBuffer.scala | 6 ++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/main/scala/li/cil/oc/client/PacketHandler.scala b/src/main/scala/li/cil/oc/client/PacketHandler.scala
index 7f2d995a6..c3bceeaa2 100644
--- a/src/main/scala/li/cil/oc/client/PacketHandler.scala
+++ b/src/main/scala/li/cil/oc/client/PacketHandler.scala
@@ -373,7 +373,9 @@ object PacketHandler extends CommonPacketHandler {
 
   def onTextBufferInit(p: PacketParser) {
     ComponentTracker.get(p.player.worldObj, p.readUTF()) match {
-      case Some(buffer: li.cil.oc.common.component.TextBuffer) => buffer.data.load(p.readNBT())
+      case Some(buffer: li.cil.oc.common.component.TextBuffer) =>
+        buffer.data.load(p.readNBT())
+        buffer.proxy.markDirty()
       case _ => // Invalid packet.
     }
   }
diff --git a/src/main/scala/li/cil/oc/common/component/TextBuffer.scala b/src/main/scala/li/cil/oc/common/component/TextBuffer.scala
index 69a889a1d..9a31b1660 100644
--- a/src/main/scala/li/cil/oc/common/component/TextBuffer.scala
+++ b/src/main/scala/li/cil/oc/common/component/TextBuffer.scala
@@ -467,13 +467,10 @@ object TextBuffer {
 
     var dirty = false
 
-    var lastChange = 0L
-
     var nodeAddress = ""
 
     def markDirty() {
       dirty = true
-      lastChange = owner.host.world.getTotalWorldTime
     }
 
     def render() = false
@@ -517,8 +514,9 @@ object TextBuffer {
 
   class ClientProxy(val owner: TextBuffer) extends Proxy {
     override def render() = {
+      val wasDirty = dirty
       TextBufferRenderCache.render(owner)
-      lastChange == owner.host.world.getTotalWorldTime
+      wasDirty
     }
 
     override def onScreenColorChange() {