package net.minecraft.world.level.block; import com.mojang.serialization.MapCodec; import com.mojang.serialization.codecs.RecordCodecBuilder; import java.util.Map; import java.util.Optional; import java.util.Map.Entry; import java.util.stream.Collectors; import net.minecraft.core.BlockPos; import net.minecraft.core.Direction; import net.minecraft.tags.BlockTags; import net.minecraft.util.RandomSource; import net.minecraft.world.InteractionHand; import net.minecraft.world.InteractionResult; import net.minecraft.world.entity.player.Player; import net.minecraft.world.item.HangingSignItem; import net.minecraft.world.item.ItemStack; import net.minecraft.world.item.context.BlockPlaceContext; import net.minecraft.world.level.BlockGetter; import net.minecraft.world.level.Level; import net.minecraft.world.level.LevelReader; import net.minecraft.world.level.ScheduledTickAccess; import net.minecraft.world.level.block.entity.BlockEntity; import net.minecraft.world.level.block.entity.BlockEntityTicker; import net.minecraft.world.level.block.entity.BlockEntityType; import net.minecraft.world.level.block.entity.HangingSignBlockEntity; import net.minecraft.world.level.block.entity.SignBlockEntity; import net.minecraft.world.level.block.state.BlockBehaviour; import net.minecraft.world.level.block.state.BlockState; import net.minecraft.world.level.block.state.StateDefinition.Builder; import net.minecraft.world.level.block.state.properties.BlockStateProperties; import net.minecraft.world.level.block.state.properties.BooleanProperty; import net.minecraft.world.level.block.state.properties.IntegerProperty; import net.minecraft.world.level.block.state.properties.RotationSegment; import net.minecraft.world.level.block.state.properties.WoodType; import net.minecraft.world.level.material.FluidState; import net.minecraft.world.level.material.Fluids; import net.minecraft.world.phys.BlockHitResult; import net.minecraft.world.phys.shapes.CollisionContext; import net.minecraft.world.phys.shapes.Shapes; import net.minecraft.world.phys.shapes.VoxelShape; import org.jetbrains.annotations.Nullable; public class CeilingHangingSignBlock extends SignBlock { public static final MapCodec CODEC = RecordCodecBuilder.mapCodec( instance -> instance.group(WoodType.CODEC.fieldOf("wood_type").forGetter(SignBlock::type), propertiesCodec()).apply(instance, CeilingHangingSignBlock::new) ); public static final IntegerProperty ROTATION = BlockStateProperties.ROTATION_16; public static final BooleanProperty ATTACHED = BlockStateProperties.ATTACHED; private static final VoxelShape SHAPE_DEFAULT = Block.column(10.0, 0.0, 16.0); private static final Map SHAPES = (Map)Shapes.rotateHorizontal(Block.column(14.0, 2.0, 0.0, 10.0)) .entrySet() .stream() .collect(Collectors.toMap(entry -> RotationSegment.convertToSegment((Direction)entry.getKey()), Entry::getValue)); @Override public MapCodec codec() { return CODEC; } public CeilingHangingSignBlock(WoodType woodType, BlockBehaviour.Properties properties) { super(woodType, properties.sound(woodType.hangingSignSoundType())); this.registerDefaultState(this.stateDefinition.any().setValue(ROTATION, 0).setValue(ATTACHED, false).setValue(WATERLOGGED, false)); } @Override protected InteractionResult useItemOn( ItemStack stack, BlockState state, Level level, BlockPos pos, Player player, InteractionHand hand, BlockHitResult hitResult ) { return (InteractionResult)(level.getBlockEntity(pos) instanceof SignBlockEntity signBlockEntity && this.shouldTryToChainAnotherHangingSign(player, hitResult, signBlockEntity, stack) ? InteractionResult.PASS : super.useItemOn(stack, state, level, pos, player, hand, hitResult)); } private boolean shouldTryToChainAnotherHangingSign(Player player, BlockHitResult hitResult, SignBlockEntity sign, ItemStack stack) { return !sign.canExecuteClickCommands(sign.isFacingFrontText(player), player) && stack.getItem() instanceof HangingSignItem && hitResult.getDirection().equals(Direction.DOWN); } @Override protected boolean canSurvive(BlockState state, LevelReader level, BlockPos pos) { return level.getBlockState(pos.above()).isFaceSturdy(level, pos.above(), Direction.DOWN, SupportType.CENTER); } @Override public BlockState getStateForPlacement(BlockPlaceContext context) { Level level = context.getLevel(); FluidState fluidState = level.getFluidState(context.getClickedPos()); BlockPos blockPos = context.getClickedPos().above(); BlockState blockState = level.getBlockState(blockPos); boolean bl = blockState.is(BlockTags.ALL_HANGING_SIGNS); Direction direction = Direction.fromYRot(context.getRotation()); boolean bl2 = !Block.isFaceFull(blockState.getCollisionShape(level, blockPos), Direction.DOWN) || context.isSecondaryUseActive(); if (bl && !context.isSecondaryUseActive()) { if (blockState.hasProperty(WallHangingSignBlock.FACING)) { Direction direction2 = blockState.getValue(WallHangingSignBlock.FACING); if (direction2.getAxis().test(direction)) { bl2 = false; } } else if (blockState.hasProperty(ROTATION)) { Optional optional = RotationSegment.convertToDirection((Integer)blockState.getValue(ROTATION)); if (optional.isPresent() && ((Direction)optional.get()).getAxis().test(direction)) { bl2 = false; } } } int i = !bl2 ? RotationSegment.convertToSegment(direction.getOpposite()) : RotationSegment.convertToSegment(context.getRotation() + 180.0F); return this.defaultBlockState().setValue(ATTACHED, bl2).setValue(ROTATION, i).setValue(WATERLOGGED, fluidState.getType() == Fluids.WATER); } @Override protected VoxelShape getShape(BlockState state, BlockGetter level, BlockPos pos, CollisionContext context) { return (VoxelShape)SHAPES.getOrDefault(state.getValue(ROTATION), SHAPE_DEFAULT); } @Override protected VoxelShape getBlockSupportShape(BlockState state, BlockGetter level, BlockPos pos) { return this.getShape(state, level, pos, CollisionContext.empty()); } @Override protected BlockState updateShape( BlockState state, LevelReader level, ScheduledTickAccess scheduledTickAccess, BlockPos pos, Direction direction, BlockPos neighborPos, BlockState neighborState, RandomSource random ) { return direction == Direction.UP && !this.canSurvive(state, level, pos) ? Blocks.AIR.defaultBlockState() : super.updateShape(state, level, scheduledTickAccess, pos, direction, neighborPos, neighborState, random); } @Override public float getYRotationDegrees(BlockState state) { return RotationSegment.convertToDegrees((Integer)state.getValue(ROTATION)); } @Override protected BlockState rotate(BlockState state, Rotation rotation) { return state.setValue(ROTATION, rotation.rotate((Integer)state.getValue(ROTATION), 16)); } @Override protected BlockState mirror(BlockState state, Mirror mirror) { return state.setValue(ROTATION, mirror.mirror((Integer)state.getValue(ROTATION), 16)); } @Override protected void createBlockStateDefinition(Builder builder) { builder.add(ROTATION, ATTACHED, WATERLOGGED); } @Override public BlockEntity newBlockEntity(BlockPos pos, BlockState state) { return new HangingSignBlockEntity(pos, state); } @Nullable @Override public BlockEntityTicker getTicker(Level level, BlockState state, BlockEntityType blockEntityType) { return createTickerHelper(blockEntityType, BlockEntityType.HANGING_SIGN, SignBlockEntity::tick); } }