testes

src/test/java/appeng/util/item/TestItemWithCaps.java

@@ -0,0 +1,60 @@
+package appeng.util.item;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.CompoundNBT;
+import net.minecraft.nbt.IntNBT;
+import net.minecraft.util.Direction;
+import net.minecraftforge.common.capabilities.Capability;
+import net.minecraftforge.common.capabilities.ICapabilityProvider;
+import net.minecraftforge.common.util.INBTSerializable;
+import net.minecraftforge.common.util.LazyOptional;
+
+public class TestItemWithCaps extends Item {
+    public TestItemWithCaps() {
+        super(new Properties());
+        setRegistryName("appliedenergistics2:test_item");
+    }
+
+    @Nullable
+    @Override
+    public ICapabilityProvider initCapabilities(ItemStack stack, @Nullable CompoundNBT nbt) {
+        if (nbt == null) {
+            return null;
+        } else {
+            return new CapabilityProvider();
+        }
+    }
+
+    /**
+     * Simple capability provider that just has a single counter value to produce different NBT.
+     */
+    public static class CapabilityProvider implements ICapabilityProvider, INBTSerializable<IntNBT> {
+        private int counter;
+
+        @Nonnull
+        @Override
+        public <T> LazyOptional<T> getCapability(@Nonnull Capability<T> cap, @Nullable Direction side) {
+            return LazyOptional.empty();
+        }
+
+        @Nonnull
+        @Override
+        public <T> LazyOptional<T> getCapability(@Nonnull Capability<T> cap) {
+            return LazyOptional.empty();
+        }
+
+        @Override
+        public IntNBT serializeNBT() {
+            return IntNBT.valueOf(counter);
+        }
+
+        @Override
+        public void deserializeNBT(IntNBT nbt) {
+            counter = nbt.getInt();
+        }
+    }
+}