128 lines
5.4 KiB
Java
128 lines
5.4 KiB
Java
package net.minecraft.world.level.block;
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import com.mojang.serialization.MapCodec;
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import net.minecraft.core.BlockPos;
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import net.minecraft.core.Direction;
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import net.minecraft.util.Mth;
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import net.minecraft.world.entity.LivingEntity;
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import net.minecraft.world.entity.player.Player;
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import net.minecraft.world.item.ItemStack;
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import net.minecraft.world.item.context.BlockPlaceContext;
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import net.minecraft.world.level.Level;
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import net.minecraft.world.level.LevelAccessor;
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import net.minecraft.world.level.LevelReader;
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import net.minecraft.world.level.block.entity.BlockEntity;
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import net.minecraft.world.level.block.state.BlockBehaviour;
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import net.minecraft.world.level.block.state.BlockState;
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import net.minecraft.world.level.block.state.StateDefinition;
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import net.minecraft.world.level.block.state.properties.BlockStateProperties;
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import net.minecraft.world.level.block.state.properties.DoubleBlockHalf;
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import net.minecraft.world.level.block.state.properties.EnumProperty;
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import net.minecraft.world.level.material.Fluids;
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import org.jetbrains.annotations.Nullable;
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public class DoublePlantBlock extends BushBlock {
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public static final MapCodec<DoublePlantBlock> CODEC = simpleCodec(DoublePlantBlock::new);
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public static final EnumProperty<DoubleBlockHalf> HALF = BlockStateProperties.DOUBLE_BLOCK_HALF;
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@Override
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public MapCodec<? extends DoublePlantBlock> codec() {
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return CODEC;
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}
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public DoublePlantBlock(BlockBehaviour.Properties properties) {
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super(properties);
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this.registerDefaultState(this.stateDefinition.any().setValue(HALF, DoubleBlockHalf.LOWER));
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}
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@Override
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protected BlockState updateShape(BlockState state, Direction direction, BlockState neighborState, LevelAccessor level, BlockPos pos, BlockPos neighborPos) {
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DoubleBlockHalf doubleBlockHalf = state.getValue(HALF);
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if (direction.getAxis() != Direction.Axis.Y
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|| doubleBlockHalf == DoubleBlockHalf.LOWER != (direction == Direction.UP)
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|| neighborState.is(this) && neighborState.getValue(HALF) != doubleBlockHalf) {
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return doubleBlockHalf == DoubleBlockHalf.LOWER && direction == Direction.DOWN && !state.canSurvive(level, pos)
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? Blocks.AIR.defaultBlockState()
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: super.updateShape(state, direction, neighborState, level, pos, neighborPos);
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} else {
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return Blocks.AIR.defaultBlockState();
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}
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}
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@Nullable
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@Override
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public BlockState getStateForPlacement(BlockPlaceContext context) {
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BlockPos blockPos = context.getClickedPos();
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Level level = context.getLevel();
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return blockPos.getY() < level.getMaxBuildHeight() - 1 && level.getBlockState(blockPos.above()).canBeReplaced(context)
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? super.getStateForPlacement(context)
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: null;
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}
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@Override
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public void setPlacedBy(Level level, BlockPos pos, BlockState state, LivingEntity placer, ItemStack stack) {
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BlockPos blockPos = pos.above();
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level.setBlock(blockPos, copyWaterloggedFrom(level, blockPos, this.defaultBlockState().setValue(HALF, DoubleBlockHalf.UPPER)), 3);
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}
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@Override
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protected boolean canSurvive(BlockState state, LevelReader level, BlockPos pos) {
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if (state.getValue(HALF) != DoubleBlockHalf.UPPER) {
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return super.canSurvive(state, level, pos);
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} else {
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BlockState blockState = level.getBlockState(pos.below());
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return blockState.is(this) && blockState.getValue(HALF) == DoubleBlockHalf.LOWER;
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}
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}
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public static void placeAt(LevelAccessor level, BlockState state, BlockPos pos, int flags) {
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BlockPos blockPos = pos.above();
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level.setBlock(pos, copyWaterloggedFrom(level, pos, state.setValue(HALF, DoubleBlockHalf.LOWER)), flags);
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level.setBlock(blockPos, copyWaterloggedFrom(level, blockPos, state.setValue(HALF, DoubleBlockHalf.UPPER)), flags);
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}
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public static BlockState copyWaterloggedFrom(LevelReader level, BlockPos pos, BlockState state) {
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return state.hasProperty(BlockStateProperties.WATERLOGGED) ? state.setValue(BlockStateProperties.WATERLOGGED, level.isWaterAt(pos)) : state;
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}
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@Override
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public BlockState playerWillDestroy(Level level, BlockPos pos, BlockState state, Player player) {
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if (!level.isClientSide) {
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if (player.isCreative()) {
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preventDropFromBottomPart(level, pos, state, player);
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} else {
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dropResources(state, level, pos, null, player, player.getMainHandItem());
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}
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}
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return super.playerWillDestroy(level, pos, state, player);
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}
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@Override
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public void playerDestroy(Level level, Player player, BlockPos pos, BlockState state, @Nullable BlockEntity blockEntity, ItemStack tool) {
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super.playerDestroy(level, player, pos, Blocks.AIR.defaultBlockState(), blockEntity, tool);
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}
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protected static void preventDropFromBottomPart(Level level, BlockPos pos, BlockState state, Player player) {
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DoubleBlockHalf doubleBlockHalf = state.getValue(HALF);
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if (doubleBlockHalf == DoubleBlockHalf.UPPER) {
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BlockPos blockPos = pos.below();
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BlockState blockState = level.getBlockState(blockPos);
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if (blockState.is(state.getBlock()) && blockState.getValue(HALF) == DoubleBlockHalf.LOWER) {
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BlockState blockState2 = blockState.getFluidState().is(Fluids.WATER) ? Blocks.WATER.defaultBlockState() : Blocks.AIR.defaultBlockState();
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level.setBlock(blockPos, blockState2, 35);
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level.levelEvent(player, 2001, blockPos, Block.getId(blockState));
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}
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}
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}
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@Override
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protected void createBlockStateDefinition(StateDefinition.Builder<Block, BlockState> builder) {
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builder.add(HALF);
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}
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@Override
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protected long getSeed(BlockState state, BlockPos pos) {
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return Mth.getSeed(pos.getX(), pos.below(state.getValue(HALF) == DoubleBlockHalf.LOWER ? 0 : 1).getY(), pos.getZ());
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}
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}
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