package net.minecraft.world.item; import java.util.Optional; import net.minecraft.core.BlockPos; import net.minecraft.core.GlobalPos; import net.minecraft.core.component.DataComponents; import net.minecraft.network.chat.Component; import net.minecraft.server.level.ServerLevel; import net.minecraft.sounds.SoundEvents; import net.minecraft.sounds.SoundSource; import net.minecraft.world.InteractionResult; import net.minecraft.world.entity.Entity; import net.minecraft.world.entity.EquipmentSlot; import net.minecraft.world.entity.player.Player; import net.minecraft.world.item.component.LodestoneTracker; import net.minecraft.world.item.context.UseOnContext; import net.minecraft.world.level.Level; import net.minecraft.world.level.block.Blocks; import org.jspecify.annotations.Nullable; public class CompassItem extends Item { private static final Component LODESTONE_COMPASS_NAME = Component.translatable("item.minecraft.lodestone_compass"); public CompassItem(final Item.Properties properties) { super(properties); } @Override public boolean isFoil(final ItemStack itemStack) { return itemStack.has(DataComponents.LODESTONE_TRACKER) || super.isFoil(itemStack); } @Override public void inventoryTick(final ItemStack itemStack, final ServerLevel level, final Entity owner, @Nullable final EquipmentSlot slot) { LodestoneTracker tracker = itemStack.get(DataComponents.LODESTONE_TRACKER); if (tracker != null) { LodestoneTracker newTracker = tracker.tick(level); if (newTracker != tracker) { itemStack.set(DataComponents.LODESTONE_TRACKER, newTracker); } } } @Override public InteractionResult useOn(final UseOnContext context) { BlockPos blockPos = context.getClickedPos(); Level level = context.getLevel(); if (!level.getBlockState(blockPos).is(Blocks.LODESTONE)) { return super.useOn(context); } else { level.playSound(null, blockPos, SoundEvents.LODESTONE_COMPASS_LOCK, SoundSource.PLAYERS, 1.0F, 1.0F); Player player = context.getPlayer(); ItemStack itemStack = context.getItemInHand(); boolean replaceExistingStack = !player.hasInfiniteMaterials() && itemStack.getCount() == 1; LodestoneTracker target = new LodestoneTracker(Optional.of(GlobalPos.of(level.dimension(), blockPos)), true); if (replaceExistingStack) { itemStack.set(DataComponents.LODESTONE_TRACKER, target); } else { ItemStack lodestoneCompass = itemStack.transmuteCopy(Items.COMPASS, 1); itemStack.consume(1, player); lodestoneCompass.set(DataComponents.LODESTONE_TRACKER, target); if (!player.getInventory().add(lodestoneCompass)) { player.drop(lodestoneCompass, false); } } return InteractionResult.SUCCESS; } } @Override public Component getName(final ItemStack itemStack) { return itemStack.has(DataComponents.LODESTONE_TRACKER) ? LODESTONE_COMPASS_NAME : super.getName(itemStack); } }