package net.minecraft.world.level.block; import com.mojang.serialization.MapCodec; import net.minecraft.core.BlockPos; import net.minecraft.core.Direction; import net.minecraft.world.item.context.BlockPlaceContext; import net.minecraft.world.level.BlockGetter; import net.minecraft.world.level.LevelAccessor; import net.minecraft.world.level.LevelReader; import net.minecraft.world.level.block.state.BlockBehaviour; import net.minecraft.world.level.block.state.BlockState; import net.minecraft.world.level.block.state.StateDefinition; 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.DirectionProperty; import net.minecraft.world.level.material.FluidState; import net.minecraft.world.level.material.Fluids; import net.minecraft.world.phys.shapes.CollisionContext; import net.minecraft.world.phys.shapes.VoxelShape; import org.jetbrains.annotations.Nullable; public class LadderBlock extends Block implements SimpleWaterloggedBlock { public static final MapCodec CODEC = simpleCodec(LadderBlock::new); public static final DirectionProperty FACING = HorizontalDirectionalBlock.FACING; public static final BooleanProperty WATERLOGGED = BlockStateProperties.WATERLOGGED; protected static final float AABB_OFFSET = 3.0F; protected static final VoxelShape EAST_AABB = Block.box(0.0, 0.0, 0.0, 3.0, 16.0, 16.0); protected static final VoxelShape WEST_AABB = Block.box(13.0, 0.0, 0.0, 16.0, 16.0, 16.0); protected static final VoxelShape SOUTH_AABB = Block.box(0.0, 0.0, 0.0, 16.0, 16.0, 3.0); protected static final VoxelShape NORTH_AABB = Block.box(0.0, 0.0, 13.0, 16.0, 16.0, 16.0); @Override public MapCodec codec() { return CODEC; } protected LadderBlock(BlockBehaviour.Properties properties) { super(properties); this.registerDefaultState(this.stateDefinition.any().setValue(FACING, Direction.NORTH).setValue(WATERLOGGED, false)); } @Override protected VoxelShape getShape(BlockState state, BlockGetter level, BlockPos pos, CollisionContext context) { switch ((Direction)state.getValue(FACING)) { case NORTH: return NORTH_AABB; case SOUTH: return SOUTH_AABB; case WEST: return WEST_AABB; case EAST: default: return EAST_AABB; } } private boolean canAttachTo(BlockGetter blockReader, BlockPos pos, Direction direction) { BlockState blockState = blockReader.getBlockState(pos); return blockState.isFaceSturdy(blockReader, pos, direction); } @Override protected boolean canSurvive(BlockState state, LevelReader level, BlockPos pos) { Direction direction = state.getValue(FACING); return this.canAttachTo(level, pos.relative(direction.getOpposite()), direction); } @Override protected BlockState updateShape(BlockState state, Direction direction, BlockState neighborState, LevelAccessor level, BlockPos pos, BlockPos neighborPos) { if (direction.getOpposite() == state.getValue(FACING) && !state.canSurvive(level, pos)) { return Blocks.AIR.defaultBlockState(); } else { if ((Boolean)state.getValue(WATERLOGGED)) { level.scheduleTick(pos, Fluids.WATER, Fluids.WATER.getTickDelay(level)); } return super.updateShape(state, direction, neighborState, level, pos, neighborPos); } } @Nullable @Override public BlockState getStateForPlacement(BlockPlaceContext context) { if (!context.replacingClickedOnBlock()) { BlockState blockState = context.getLevel().getBlockState(context.getClickedPos().relative(context.getClickedFace().getOpposite())); if (blockState.is(this) && blockState.getValue(FACING) == context.getClickedFace()) { return null; } } BlockState blockState = this.defaultBlockState(); LevelReader levelReader = context.getLevel(); BlockPos blockPos = context.getClickedPos(); FluidState fluidState = context.getLevel().getFluidState(context.getClickedPos()); for (Direction direction : context.getNearestLookingDirections()) { if (direction.getAxis().isHorizontal()) { blockState = blockState.setValue(FACING, direction.getOpposite()); if (blockState.canSurvive(levelReader, blockPos)) { return blockState.setValue(WATERLOGGED, fluidState.getType() == Fluids.WATER); } } } return null; } @Override protected BlockState rotate(BlockState state, Rotation rotation) { return state.setValue(FACING, rotation.rotate(state.getValue(FACING))); } @Override protected BlockState mirror(BlockState state, Mirror mirror) { return state.rotate(mirror.getRotation(state.getValue(FACING))); } @Override protected void createBlockStateDefinition(StateDefinition.Builder builder) { builder.add(FACING, WATERLOGGED); } @Override protected FluidState getFluidState(BlockState state) { return state.getValue(WATERLOGGED) ? Fluids.WATER.getSource(false) : super.getFluidState(state); } }