Blood Letter's Pack + Coat of Arms

src/main/java/WayofTime/bloodmagic/item/gear/ItemPackSacrifice.java

@@ -0,0 +1,98 @@
+package WayofTime.bloodmagic.item.gear;
+
+import WayofTime.bloodmagic.BloodMagic;
+import WayofTime.bloodmagic.api.NBTHolder;
+import WayofTime.bloodmagic.api.altar.IAltarManipulator;
+import WayofTime.bloodmagic.tile.TileAltar;
+import WayofTime.bloodmagic.util.helper.TextHelper;
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.ItemArmor;
+import net.minecraft.item.ItemStack;
+import net.minecraft.tileentity.TileEntity;
+import net.minecraft.util.MovingObjectPosition;
+import net.minecraft.world.World;
+
+import java.util.List;
+
+public class ItemPackSacrifice extends ItemArmor implements IAltarManipulator {
+
+    public final int CONVERSION = 100; // How much LP per heart
+    public final int CAPACITY = 10000; // Max LP storage
+
+    public ItemPackSacrifice() {
+        super(ArmorMaterial.CHAIN, 0, 1);
+
+        setUnlocalizedName(BloodMagic.MODID + ".pack.sacrifice");
+        setCreativeTab(BloodMagic.tabBloodMagic);
+    }
+
+    @Override
+    public ItemStack onItemRightClick(ItemStack stack, World world, EntityPlayer player) {
+        if (world.isRemote)
+            return stack;
+
+        MovingObjectPosition position = this.getMovingObjectPositionFromPlayer(world, player, false);
+
+        if (position == null) {
+            return super.onItemRightClick(stack, world, player);
+        } else {
+            if (position.typeOfHit == MovingObjectPosition.MovingObjectType.BLOCK) {
+                TileEntity tile = world.getTileEntity(position.getBlockPos());
+
+                if (!(tile instanceof TileAltar))
+                    return super.onItemRightClick(stack, world, player);
+
+                TileAltar altar = (TileAltar) tile;
+
+                if(!altar.isActive()) {
+                    int amount = this.getStoredLP(stack);
+
+                    if(amount > 0) {
+                        int filledAmount = altar.fillMainTank(amount);
+                        amount -= filledAmount;
+                        setStoredLP(stack, amount);
+                        world.markBlockForUpdate(position.getBlockPos());
+                    }
+                }
+            }
+        }
+
+        return stack;
+    }
+
+    @Override
+    public String getArmorTexture(ItemStack stack, Entity entity, int slot, String type) {
+        return BloodMagic.DOMAIN + "models/armor/bloodPack_layer_1.png";
+    }
+
+    @Override
+    @SuppressWarnings("unchecked")
+    public void addInformation(ItemStack stack, EntityPlayer player, List list, boolean advanced) {
+        stack = NBTHolder.checkNBT(stack);
+        list.add(TextHelper.localize("tooltip.BloodMagic.pack.sacrifice.desc"));
+        list.add(TextHelper.localize("tooltip.BloodMagic.pack.stored", getStoredLP(stack)));
+    }
+
+    public void addLP(ItemStack stack, int toAdd) {
+        stack = NBTHolder.checkNBT(stack);
+
+        if (toAdd < 0)
+            toAdd = 0;
+
+        if (toAdd > CAPACITY)
+            toAdd = CAPACITY;
+
+        setStoredLP(stack, getStoredLP(stack) + toAdd);
+    }
+
+    public void setStoredLP(ItemStack stack, int lp) {
+        stack = NBTHolder.checkNBT(stack);
+        stack.getTagCompound().setInteger(NBTHolder.NBT_STORED_LP, lp);
+    }
+
+    public int getStoredLP(ItemStack stack) {
+        stack = NBTHolder.checkNBT(stack);
+        return stack.getTagCompound().getInteger(NBTHolder.NBT_STORED_LP);
+    }
+}