Added Blood Letter's backpack, attempting to add NBT-sensitive blood altar recipes.

src/main/java/WayofTime/alchemicalWizardry/common/items/thaumcraft/ItemBloodLetterPack.java

@@ -0,0 +1,162 @@
+package WayofTime.alchemicalWizardry.common.items.thaumcraft;
+
+import java.util.List;
+
+import net.minecraft.client.renderer.texture.IIconRegister;
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.ItemArmor;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.tileentity.TileEntity;
+import net.minecraft.util.IIcon;
+import net.minecraft.util.MovingObjectPosition;
+import net.minecraft.world.World;
+import WayofTime.alchemicalWizardry.AlchemicalWizardry;
+import WayofTime.alchemicalWizardry.api.items.interfaces.ArmourUpgrade;
+import WayofTime.alchemicalWizardry.common.tileEntity.TEAltar;
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+
+public class ItemBloodLetterPack extends ItemArmor implements ArmourUpgrade
+{
+    private static IIcon helmetIcon;
+    private static IIcon plateIcon;
+    private static IIcon leggingsIcon;
+    private static IIcon bootsIcon;
+    
+    public static int conversionRate = 100; //LP / half heart
+    public static float activationPoint = 0.5f;
+    public static int tickRate = 20;
+
+    public ItemBloodLetterPack()
+    {
+        super(ArmorMaterial.CHAIN, 0, 1);
+        setCreativeTab(AlchemicalWizardry.tabBloodMagic);
+    }
+
+    @Override
+    @SideOnly(Side.CLIENT)
+    public void registerIcons(IIconRegister iconRegister)
+    {
+        this.itemIcon = iconRegister.registerIcon("AlchemicalWizardry:SheathedItem");
+        this.helmetIcon = iconRegister.registerIcon("AlchemicalWizardry:SanguineHelmet");
+        this.plateIcon = iconRegister.registerIcon("AlchemicalWizardry:BoundPlate");
+        this.leggingsIcon = iconRegister.registerIcon("AlchemicalWizardry:BoundLeggings");
+        this.bootsIcon = iconRegister.registerIcon("AlchemicalWizardry:BoundBoots");
+    }
+
+    @Override
+    public void addInformation(ItemStack par1ItemStack, EntityPlayer par2EntityPlayer, List par3List, boolean par4)
+    {
+        par3List.add("Crystal of unimaginable power");
+
+        if (!(par1ItemStack.stackTagCompound == null))
+        {
+            NBTTagCompound itemTag = par1ItemStack.stackTagCompound;
+
+            par3List.add("Stored LP: " + this.getStoredLP(par1ItemStack));
+        }
+    }
+    
+    @SideOnly(Side.CLIENT)
+    public IIcon getIconFromDamage(int par1)
+    {
+        return this.itemIcon;
+    }
+
+    @Override
+    public String getArmorTexture(ItemStack stack, Entity entity, int slot, String type)
+    {
+        return "alchemicalwizardry:models/armor/sanguineArmour_layer_1.png";
+    }
+    
+    @Override
+    public ItemStack onItemRightClick(ItemStack itemStack, World world, EntityPlayer player)
+    {
+        if (world.isRemote)
+        {
+            return itemStack;
+        }
+
+        MovingObjectPosition movingobjectposition = this.getMovingObjectPositionFromPlayer(world, player, false);
+
+        if (movingobjectposition == null)
+        {
+        	return super.onItemRightClick(itemStack, world, player);
+        } else
+        {
+            if (movingobjectposition.typeOfHit == MovingObjectPosition.MovingObjectType.BLOCK)
+            {
+                int x = movingobjectposition.blockX;
+                int y = movingobjectposition.blockY;
+                int z = movingobjectposition.blockZ;
+
+                TileEntity tile = world.getTileEntity(x, y, z);
+
+                if (!(tile instanceof TEAltar))
+                {
+                    return super.onItemRightClick(itemStack, world, player);
+                }
+                
+                TEAltar altar = (TEAltar)tile;
+                
+                if(!altar.isActive())
+                {
+                	int amount = this.getStoredLP(itemStack);
+                	if(amount > 0)
+                	{
+                		int filledAmount = altar.fillMainTank(amount);
+                		amount -= filledAmount;
+                		this.setStoredLP(itemStack, amount);
+                	}
+                }
+            }
+        }
+        
+        return itemStack;
+    }
+    
+    public void setStoredLP(ItemStack itemStack, int lp)
+    {
+    	if(!itemStack.hasTagCompound())
+    	{
+    		itemStack.setTagCompound(new NBTTagCompound());
+    	}
+    	
+    	NBTTagCompound tag = itemStack.getTagCompound();
+    	
+    	tag.setInteger("storedLP", lp);
+    }
+    
+    public int getStoredLP(ItemStack itemStack)
+    {
+    	if(!itemStack.hasTagCompound())
+    	{
+    		itemStack.setTagCompound(new NBTTagCompound());
+    	}
+    	
+    	NBTTagCompound tag = itemStack.getTagCompound();
+    	
+    	return tag.getInteger("storedLP");
+    }
+
+    @Override
+    public void onArmourUpdate(World world, EntityPlayer player, ItemStack thisItemStack)
+    {
+    	//This is where I need to do the updating
+        return;
+    }
+
+    @Override
+    public boolean isUpgrade()
+    {
+        return true;
+    }
+
+    @Override
+    public int getEnergyForTenSeconds()
+    {
+        return 0;
+    }
+}