Mostly finished the LivingArmour framework, which includes the upgrades and stat trackers.

src/main/java/WayofTime/bloodmagic/api/livingArmour/LivingArmourUpgrade.java

@@ -0,0 +1,53 @@
+package WayofTime.bloodmagic.api.livingArmour;
+
+import net.minecraft.entity.ai.attributes.AttributeModifier;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.world.World;
+import WayofTime.bloodmagic.livingArmour.LivingArmour;
+
+import com.google.common.collect.HashMultimap;
+import com.google.common.collect.Multimap;
+
+public abstract class LivingArmourUpgrade {
+
+	protected int level = 0; // Upgrade level 0 is the first upgrade. Upgrade
+								// goes from 0 to getMaxTier() - 1.
+
+	/**
+	 * The LivingArmourUpgrade must have a constructor that has a single integer
+	 * parameter. Upgrades may have other constructors, but must have one of
+	 * these.
+	 * 
+	 * @param level
+	 *            The level of the upgrade
+	 */
+	public LivingArmourUpgrade(int level) {
+		this.level = level;
+	}
+	
+	public int getUpgradeLevel()
+	{
+		return this.level;
+	}
+
+	public abstract String getUniqueIdentifier();
+
+	/**
+	 * 
+	 * @return
+	 */
+	public abstract int getMaxTier();
+	
+	public abstract int getCostOfUpgrade();
+	
+	public void onTick(World world, EntityPlayer player, LivingArmour livingArmour){}
+
+	public Multimap<String, AttributeModifier> getAttributeModifiers() {
+		return HashMultimap.<String, AttributeModifier> create();
+	}
+	
+	public abstract void writeToNBT(NBTTagCompound tag);
+	
+	public abstract void readFromNBT(NBTTagCompound tag);
+}