package net.minecraft.world.level.block; import com.mojang.serialization.MapCodec; import net.minecraft.core.BlockPos; import net.minecraft.server.level.ServerLevel; import net.minecraft.util.RandomSource; import net.minecraft.world.item.context.BlockPlaceContext; import net.minecraft.world.level.Level; 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.BooleanProperty; import net.minecraft.world.level.redstone.Orientation; import org.jspecify.annotations.Nullable; public class RedstoneLampBlock extends Block { public static final MapCodec CODEC = simpleCodec(RedstoneLampBlock::new); public static final BooleanProperty LIT = RedstoneTorchBlock.LIT; @Override public MapCodec codec() { return CODEC; } public RedstoneLampBlock(final BlockBehaviour.Properties properties) { super(properties); this.registerDefaultState(this.defaultBlockState().setValue(LIT, false)); } @Nullable @Override public BlockState getStateForPlacement(final BlockPlaceContext context) { return this.defaultBlockState().setValue(LIT, context.getLevel().hasNeighborSignal(context.getClickedPos())); } @Override protected void neighborChanged( final BlockState state, final Level level, final BlockPos pos, final Block block, @Nullable final Orientation orientation, final boolean movedByPiston ) { if (!level.isClientSide()) { boolean isLit = (Boolean)state.getValue(LIT); if (isLit != level.hasNeighborSignal(pos)) { if (isLit) { level.scheduleTick(pos, this, 4); } else { level.setBlock(pos, state.cycle(LIT), 2); } } } } @Override protected void tick(final BlockState state, final ServerLevel level, final BlockPos pos, final RandomSource random) { if ((Boolean)state.getValue(LIT) && !level.hasNeighborSignal(pos)) { level.setBlock(pos, state.cycle(LIT), 2); } } @Override protected void createBlockStateDefinition(final Builder builder) { builder.add(LIT); } }