Fix flask crash on server

src/main/java/gregtech/common/GT_Network.java

@@ -6,7 +6,6 @@
 import cpw.mods.fml.common.network.FMLOutboundHandler;
 import cpw.mods.fml.common.network.NetworkRegistry;
 import cpw.mods.fml.common.network.internal.FMLProxyPacket;
-import cpw.mods.fml.common.network.simpleimpl.SimpleNetworkWrapper;
 import cpw.mods.fml.relauncher.Side;
 import gregtech.api.enums.GT_Values;
 import gregtech.api.net.*;
@@ -31,13 +30,10 @@ public class GT_Network
         implements IGT_NetworkHandler {
     private final EnumMap<Side, FMLEmbeddedChannel> mChannel;
     private final GT_Packet[] mSubChannels;
-    public final SimpleNetworkWrapper networkWrapper;
 
     public GT_Network() {
-        networkWrapper = NetworkRegistry.INSTANCE.newSimpleChannel("gregtech_network_wrapper");
-        networkWrapper.registerMessage(MessageSetFlaskCapacity.Handler.class, MessageSetFlaskCapacity.class, 0, Side.SERVER);
         this.mChannel = NetworkRegistry.INSTANCE.newChannel("GregTech", new ChannelHandler[]{this, new HandlerShared()});
-        this.mSubChannels = new GT_Packet[]{new GT_Packet_TileEntity(), new GT_Packet_Sound(), new GT_Packet_Block_Event(), new GT_Packet_Ores(), new GT_Packet_Pollution()};
+        this.mSubChannels = new GT_Packet[]{new GT_Packet_TileEntity(), new GT_Packet_Sound(), new GT_Packet_Block_Event(), new GT_Packet_Ores(), new GT_Packet_Pollution(), new MessageSetFlaskCapacity()};
     }
 
     protected void encode(ChannelHandlerContext aContext, GT_Packet aPacket, List<Object> aOutput)

src/main/java/gregtech/common/gui/GT_GUIContainerVolumetricFlask.java

@@ -4,9 +4,9 @@
 import cpw.mods.fml.relauncher.Side;
 import cpw.mods.fml.relauncher.SideOnly;
 import gregtech.api.enums.GT_Values;
-import gregtech.common.GT_Network;
 import gregtech.common.items.GT_VolumetricFlask;
 import gregtech.common.net.MessageSetFlaskCapacity;
+import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.FontRenderer;
 import net.minecraft.client.gui.GuiButton;
 import net.minecraft.client.gui.GuiTextField;
@@ -115,7 +115,7 @@ protected void keyTyped(char character, int key) {
     protected void actionPerformed(GuiButton btn) {
         try {
             if (btn == apply) {
-                ((GT_Network) GT_Values.NW).networkWrapper.sendToServer(new MessageSetFlaskCapacity(Integer.parseInt(amount.getText())));
+                GT_Values.NW.sendToServer(new MessageSetFlaskCapacity(Integer.parseInt(amount.getText()), Minecraft.getMinecraft().thePlayer));
                 mc.thePlayer.closeScreen();
             }
 

src/main/java/gregtech/common/net/MessageSetFlaskCapacity.java

@@ -1,42 +1,67 @@
 package gregtech.common.net;
 
-import cpw.mods.fml.common.network.simpleimpl.IMessage;
-import cpw.mods.fml.common.network.simpleimpl.IMessageHandler;
-import cpw.mods.fml.common.network.simpleimpl.MessageContext;
+import com.google.common.io.ByteArrayDataInput;
+import com.google.common.io.ByteArrayDataOutput;
+import com.google.common.io.ByteStreams;
+import gregtech.api.net.GT_Packet;
 import gregtech.common.items.GT_VolumetricFlask;
-import io.netty.buffer.ByteBuf;
+import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
+import net.minecraft.world.IBlockAccess;
+import net.minecraft.world.World;
+import net.minecraftforge.common.DimensionManager;
 
-public final class MessageSetFlaskCapacity implements IMessage {
-    private int capacity;
+public final class MessageSetFlaskCapacity extends GT_Packet {
+    private int capacity, dimID, playerID;
 
     public MessageSetFlaskCapacity() {
+        super(true);
     }
 
-    public MessageSetFlaskCapacity(int capacity) {
+    public MessageSetFlaskCapacity(int capacity, int dimID, int playerID) {
+        super(false);
         this.capacity = capacity;
+        this.dimID = dimID;
+        this.playerID = playerID;
     }
 
+    public MessageSetFlaskCapacity(int capacity, EntityPlayer p) {
+        super(false);
+        this.capacity = capacity;
+        this.dimID = p.worldObj.provider.dimensionId;
+        this.playerID = p.getEntityId();
+    }
+
+    @Override
+    public byte getPacketID() {
+        return 5;
+    }
 
-    public void fromBytes(ByteBuf buf) {
-        this.capacity = buf.readInt();
+    @Override
+    public byte[] encode() {
+        ByteArrayDataOutput tOut = ByteStreams.newDataOutput(10);
+        tOut.writeInt(capacity);
+        tOut.writeInt(dimID);
+        tOut.writeInt(playerID);
+        return tOut.toByteArray();
     }
 
-    public void toBytes(ByteBuf buf) {
-        buf.writeInt(this.capacity);
+    @Override
+    public GT_Packet decode(ByteArrayDataInput aData) {
+        return new MessageSetFlaskCapacity(aData.readInt(), aData.readInt(), aData.readInt());
     }
 
-    public static final class Handler
-            implements IMessageHandler<MessageSetFlaskCapacity, IMessage> {
-        public IMessage onMessage(MessageSetFlaskCapacity message, MessageContext ctx) {
-            ItemStack stack = ctx.getServerHandler().playerEntity.getHeldItem();
+    @Override
+    public void process(IBlockAccess aWorld) {
+        World w = DimensionManager.getWorld(dimID);
+        if (w != null && w.getEntityByID(playerID) instanceof EntityPlayer) {
+            ItemStack stack = ((EntityPlayer) w.getEntityByID(playerID)).getHeldItem();
             if ((stack != null) && (stack.stackSize > 0)) {
                 Item item = stack.getItem();
                 if ((item instanceof GT_VolumetricFlask))
-                    ((GT_VolumetricFlask) item).setCapacity(stack, message.capacity);
+                    ((GT_VolumetricFlask) item).setCapacity(stack, capacity);
             }
-            return null;
         }
     }
 }