Initial implementation of inventory stuff, (read-)only for StorageMinecart sofar

src/main/java/org/bukkit/craftbukkit/CraftItemStack.java

@@ -0,0 +1,61 @@
+package org.bukkit.craftbukkit;
+
+import org.bukkit.ItemStack;
+import org.bukkit.Material;
+
+public class CraftItemStack extends ItemStack {
+    protected net.minecraft.server.ItemStack item;
+
+    public CraftItemStack(net.minecraft.server.ItemStack item) {
+        super(item.c, item.a);
+        this.item = item;
+    }
+
+    /*
+     * Unsure if we have to syn before each of these calls the values in 'item'
+     * are all public.
+     */
+
+    @Override
+    public Material getType() {
+        super.setTypeID(item.c); // sync, needed?
+        return super.getType();
+    }
+
+    @Override
+    public int getTypeID() {
+        super.setTypeID(item.c); // sync, needed?
+        return item.c;
+    }
+
+    @Override
+    public void setTypeID(int type) {
+        super.setTypeID(item.c);
+        item.c = type;
+    }
+
+    @Override
+    public int getAmount() {
+        super.setAmount(item.a); // sync, needed?
+        return item.a;
+    }
+
+    @Override
+    public void setAmount(int amount) {
+        super.setAmount(amount);
+        item.a = amount;
+    }
+
+    @Override
+    public void setDamage(final byte damage) {
+        super.setDamage(damage);
+        item.d = damage;
+    }
+
+    @Override
+    public byte getDamage() {
+        super.setDamage((byte) item.d); // sync, needed?
+        return (byte) item.d;
+    }
+
+}