From 2cf84989d19c15ea117f3ea8b1bc56ae0f4ff336 Mon Sep 17 00:00:00 2001
From: AlgorithmX2 <AlgorithmX2@gmail.com>
Date: Sun, 18 May 2014 21:36:32 -0500
Subject: [PATCH] IC2 Double Buffer Approach.

---
 parts/p2p/PartP2PIC2Power.java | 42 ++++++++++++++++++++++++++--------
 1 file changed, 33 insertions(+), 9 deletions(-)

diff --git a/parts/p2p/PartP2PIC2Power.java b/parts/p2p/PartP2PIC2Power.java
index 69f42bfa2..70e744611 100644
--- a/parts/p2p/PartP2PIC2Power.java
+++ b/parts/p2p/PartP2PIC2Power.java
@@ -36,20 +36,24 @@ public class PartP2PIC2Power extends PartP2PTunnel<PartP2PIC2Power> implements i
 			throw new RuntimeException( "IC2 Not installed!" );
 	}
 
-	double OutputPacket;
+	// two packet buffering...
+	double OutputPacketA;
+	double OutputPacketB;
 
 	@Override
 	public void writeToNBT(NBTTagCompound tag)
 	{
 		super.writeToNBT( tag );
-		tag.setDouble( "OutputPacket", OutputPacket );
+		tag.setDouble( "OutputPacket", OutputPacketA );
+		tag.setDouble( "OutputPacket2", OutputPacketB );
 	}
 
 	@Override
 	public void readFromNBT(NBTTagCompound tag)
 	{
 		super.readFromNBT( tag );
-		OutputPacket = tag.getDouble( "OutputPacket" );
+		OutputPacketA = tag.getDouble( "OutputPacket" );
+		OutputPacketB = tag.getDouble( "OutputPacket2" );
 	}
 
 	@SideOnly(Side.CLIENT)
@@ -84,7 +88,7 @@ public class PartP2PIC2Power extends PartP2PTunnel<PartP2PIC2Power> implements i
 		{
 			for (PartP2PIC2Power t : getOutputs())
 			{
-				if ( t.OutputPacket <= 0.0001 )
+				if ( t.OutputPacketA <= 0.0001 || t.OutputPacketB <= 0.0001 )
 				{
 					return 2048;
 				}
@@ -128,10 +132,17 @@ public class PartP2PIC2Power extends PartP2PTunnel<PartP2PIC2Power> implements i
 		LinkedList<PartP2PIC2Power> Options = new LinkedList();
 		for (PartP2PIC2Power o : outs)
 		{
-			if ( o.OutputPacket <= 0.01 )
+			if ( o.OutputPacketA <= 0.01 )
 				Options.add( o );
 		}
 
+		if ( Options.isEmpty() )
+		{
+			for (PartP2PIC2Power o : outs)
+				if ( o.OutputPacketB <= 0.01 )
+					Options.add( o );
+		}
+
 		if ( Options.isEmpty() )
 		{
 			for (PartP2PIC2Power o : outs)
@@ -142,10 +153,18 @@ public class PartP2PIC2Power extends PartP2PTunnel<PartP2PIC2Power> implements i
 			return amount;
 
 		PartP2PIC2Power x = (PartP2PIC2Power) Platform.pickRandom( Options );
-		if ( x != null && x.OutputPacket <= 0.001 )
+
+		if ( x != null && x.OutputPacketA <= 0.001 )
 		{
 			QueueTunnelDrain( PowerUnits.EU, amount );
-			x.OutputPacket = amount;
+			x.OutputPacketA = amount;
+			return 0;
+		}
+
+		if ( x != null && x.OutputPacketB <= 0.001 )
+		{
+			QueueTunnelDrain( PowerUnits.EU, amount );
+			x.OutputPacketB = amount;
 			return 0;
 		}
 
@@ -162,14 +181,19 @@ public class PartP2PIC2Power extends PartP2PTunnel<PartP2PIC2Power> implements i
 	public double getOfferedEnergy()
 	{
 		if ( output )
-			return OutputPacket;
+			return OutputPacketA;
 		return 0;
 	}
 
 	@Override
 	public void drawEnergy(double amount)
 	{
-		OutputPacket -= amount;
+		OutputPacketA -= amount;
+		if ( OutputPacketA < 0.001 )
+		{
+			OutputPacketA = OutputPacketB;
+			OutputPacketB = 0;
+		}
 	}
 
 }