gradle=7.1.1, gradle migrateMappings

remappedSrc/dan200/computercraft/shared/data/BlockNamedEntityLootCondition.java

@@ -0,0 +1,54 @@
+/*
+ * This file is part of ComputerCraft - http://www.computercraft.info
+ * Copyright Daniel Ratcliffe, 2011-2021. Do not distribute without permission.
+ * Send enquiries to dratcliffe@gmail.com
+ */
+
+package dan200.computercraft.shared.data;
+
+import net.minecraft.block.entity.BlockEntity;
+import net.minecraft.loot.condition.LootCondition;
+import net.minecraft.loot.condition.LootConditionType;
+import net.minecraft.loot.context.LootContext;
+import net.minecraft.loot.context.LootContextParameter;
+import net.minecraft.loot.context.LootContextParameters;
+import net.minecraft.util.Nameable;
+
+import javax.annotation.Nonnull;
+import java.util.Collections;
+import java.util.Set;
+
+/**
+ * A loot condition which checks if the tile entity has a name.
+ */
+public final class BlockNamedEntityLootCondition implements LootCondition
+{
+    public static final BlockNamedEntityLootCondition INSTANCE = new BlockNamedEntityLootCondition();
+    public static final LootConditionType TYPE = ConstantLootConditionSerializer.type( INSTANCE );
+    public static final Builder BUILDER = () -> INSTANCE;
+
+    private BlockNamedEntityLootCondition()
+    {
+    }
+
+    @Override
+    public boolean test( LootContext lootContext )
+    {
+        BlockEntity tile = lootContext.get( LootContextParameters.BLOCK_ENTITY );
+        return tile instanceof Nameable && ((Nameable) tile).hasCustomName();
+    }
+
+    @Nonnull
+    @Override
+    public Set<LootContextParameter<?>> getRequiredParameters()
+    {
+        return Collections.singleton( LootContextParameters.BLOCK_ENTITY );
+    }
+
+    @Override
+    @Nonnull
+    public LootConditionType getType()
+    {
+        return TYPE;
+    }
+}