Changed to a non-retarded way of sending a packet for the Demon Aura and created the Demon Will Viewer interface.

src/main/java/WayofTime/bloodmagic/api/iface/IDemonWillViewer.java

@@ -0,0 +1,12 @@
+package WayofTime.bloodmagic.api.iface;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.ItemStack;
+import net.minecraft.world.World;
+
+public interface IDemonWillViewer
+{
+    boolean canSeeDemonWillAura(World world, ItemStack stack, EntityPlayer player);
+
+    int getDemonWillAuraResolution(World world, ItemStack stack, EntityPlayer player);
+}

src/main/java/WayofTime/bloodmagic/network/DemonAuraPacketProcessor.java

@@ -1,11 +1,6 @@
 package WayofTime.bloodmagic.network;
 
 import io.netty.buffer.ByteBuf;
-
-import java.io.IOException;
-
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.network.PacketBuffer;
 import net.minecraftforge.fml.common.network.simpleimpl.IMessage;
 import net.minecraftforge.fml.common.network.simpleimpl.IMessageHandler;
@@ -13,6 +8,7 @@ import net.minecraftforge.fml.common.network.simpleimpl.MessageContext;
 import net.minecraftforge.fml.relauncher.Side;
 import net.minecraftforge.fml.relauncher.SideOnly;
 import WayofTime.bloodmagic.api.soul.DemonWillHolder;
+import WayofTime.bloodmagic.api.soul.EnumDemonWillType;
 import WayofTime.bloodmagic.proxy.ClientProxy;
 
 public class DemonAuraPacketProcessor implements IMessage, IMessageHandler<DemonAuraPacketProcessor, IMessage>
@@ -33,13 +29,9 @@ public class DemonAuraPacketProcessor implements IMessage, IMessageHandler<Demon
     public void fromBytes(ByteBuf buffer)
     {
         PacketBuffer buff = new PacketBuffer(buffer);
-        try
+        for (EnumDemonWillType type : EnumDemonWillType.values())
         {
-            NBTTagCompound tag = buff.readNBTTagCompoundFromBuffer();
+            currentWill.willMap.put(type, buff.readDouble());
-            currentWill.readFromNBT(tag, "Aura");
-        } catch (IOException e)
-        {
-            e.printStackTrace();
         }
     }
 
@@ -47,9 +39,10 @@ public class DemonAuraPacketProcessor implements IMessage, IMessageHandler<Demon
     public void toBytes(ByteBuf buffer)
     {
         PacketBuffer buff = new PacketBuffer(buffer);
-        NBTTagCompound tag = new NBTTagCompound();
+        for (EnumDemonWillType type : EnumDemonWillType.values())
-        currentWill.writeToNBT(tag, "Aura");
+        {
-        buff.writeNBTTagCompoundToBuffer(tag);
+            buff.writeDouble(currentWill.willMap.get(type));
+        }
     }
 
     @Override

src/main/java/WayofTime/bloodmagic/util/Utils.java

@@ -47,6 +47,7 @@ import WayofTime.bloodmagic.BloodMagic;
 import WayofTime.bloodmagic.api.BlockStack;
 import WayofTime.bloodmagic.api.Constants;
 import WayofTime.bloodmagic.api.altar.EnumAltarComponent;
+import WayofTime.bloodmagic.api.iface.IDemonWillViewer;
 import WayofTime.bloodmagic.api.util.helper.NBTHelper;
 import WayofTime.bloodmagic.network.BloodMagicPacketHandler;
 import WayofTime.bloodmagic.network.PlayerVelocityPacketProcessor;
@@ -57,6 +58,46 @@ import com.google.common.collect.Iterables;
 
 public class Utils
 {
+    public static boolean canPlayerSeeDemonWill(EntityPlayer player)
+    {
+        ItemStack[] mainInventory = player.inventory.mainInventory;
+
+        for (ItemStack stack : mainInventory)
+        {
+            if (stack == null)
+            {
+                continue;
+            }
+
+            if (stack.getItem() instanceof IDemonWillViewer && ((IDemonWillViewer) stack.getItem()).canSeeDemonWillAura(player.worldObj, stack, player))
+            {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public static int getDemonWillResolution(EntityPlayer player)
+    {
+        ItemStack[] mainInventory = player.inventory.mainInventory;
+
+        for (ItemStack stack : mainInventory)
+        {
+            if (stack == null)
+            {
+                continue;
+            }
+
+            if (stack.getItem() instanceof IDemonWillViewer && ((IDemonWillViewer) stack.getItem()).canSeeDemonWillAura(player.worldObj, stack, player))
+            {
+                return ((IDemonWillViewer) stack.getItem()).getDemonWillAuraResolution(player.worldObj, stack, player);
+            }
+        }
+
+        return 1;
+    }
+
     public static NBTTagCompound getPersistentDataTag(EntityPlayer player)
     {
         NBTTagCompound forgeData = player.getEntityData().getCompoundTag(EntityPlayer.PERSISTED_NBT_TAG);