131 lines
4.8 KiB
Java
131 lines
4.8 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.server.level.ServerLevel;
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import net.minecraft.util.RandomSource;
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import net.minecraft.world.item.context.BlockPlaceContext;
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import net.minecraft.world.level.BlockGetter;
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import net.minecraft.world.level.Level;
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import net.minecraft.world.level.LevelReader;
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import net.minecraft.world.level.ScheduledTickAccess;
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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.BooleanProperty;
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import net.minecraft.world.level.redstone.ExperimentalRedstoneUtils;
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import net.minecraft.world.level.redstone.Orientation;
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public class ObserverBlock extends DirectionalBlock {
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public static final MapCodec<ObserverBlock> CODEC = simpleCodec(ObserverBlock::new);
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public static final BooleanProperty POWERED = BlockStateProperties.POWERED;
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@Override
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public MapCodec<ObserverBlock> codec() {
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return CODEC;
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}
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public ObserverBlock(BlockBehaviour.Properties properties) {
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super(properties);
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this.registerDefaultState(this.stateDefinition.any().setValue(FACING, Direction.SOUTH).setValue(POWERED, false));
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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(FACING, POWERED);
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}
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@Override
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protected BlockState rotate(BlockState state, Rotation rotation) {
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return state.setValue(FACING, rotation.rotate(state.getValue(FACING)));
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}
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@Override
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protected BlockState mirror(BlockState state, Mirror mirror) {
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return state.rotate(mirror.getRotation(state.getValue(FACING)));
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}
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@Override
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protected void tick(BlockState state, ServerLevel level, BlockPos pos, RandomSource random) {
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if ((Boolean)state.getValue(POWERED)) {
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level.setBlock(pos, state.setValue(POWERED, false), 2);
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} else {
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level.setBlock(pos, state.setValue(POWERED, true), 2);
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level.scheduleTick(pos, this, 2);
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}
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this.updateNeighborsInFront(level, pos, state);
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}
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@Override
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protected BlockState updateShape(
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BlockState state,
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LevelReader level,
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ScheduledTickAccess scheduledTickAccess,
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BlockPos pos,
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Direction direction,
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BlockPos neighborPos,
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BlockState neighborState,
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RandomSource random
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) {
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if (state.getValue(FACING) == direction && !(Boolean)state.getValue(POWERED)) {
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this.startSignal(level, scheduledTickAccess, pos);
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}
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return super.updateShape(state, level, scheduledTickAccess, pos, direction, neighborPos, neighborState, random);
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}
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private void startSignal(LevelReader level, ScheduledTickAccess scheduledTickAccess, BlockPos pos) {
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if (!level.isClientSide() && !scheduledTickAccess.getBlockTicks().hasScheduledTick(pos, this)) {
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scheduledTickAccess.scheduleTick(pos, this, 2);
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}
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}
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protected void updateNeighborsInFront(Level level, BlockPos pos, BlockState state) {
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Direction direction = state.getValue(FACING);
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BlockPos blockPos = pos.relative(direction.getOpposite());
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Orientation orientation = ExperimentalRedstoneUtils.initialOrientation(level, direction.getOpposite(), null);
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level.neighborChanged(blockPos, this, orientation);
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level.updateNeighborsAtExceptFromFacing(blockPos, this, direction, orientation);
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}
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@Override
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protected boolean isSignalSource(BlockState state) {
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return true;
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}
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@Override
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protected int getDirectSignal(BlockState state, BlockGetter level, BlockPos pos, Direction direction) {
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return state.getSignal(level, pos, direction);
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}
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@Override
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protected int getSignal(BlockState state, BlockGetter level, BlockPos pos, Direction direction) {
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return state.getValue(POWERED) && state.getValue(FACING) == direction ? 15 : 0;
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}
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@Override
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protected void onPlace(BlockState state, Level level, BlockPos pos, BlockState oldState, boolean movedByPiston) {
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if (!state.is(oldState.getBlock())) {
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if (!level.isClientSide() && (Boolean)state.getValue(POWERED) && !level.getBlockTicks().hasScheduledTick(pos, this)) {
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BlockState blockState = state.setValue(POWERED, false);
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level.setBlock(pos, blockState, 18);
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this.updateNeighborsInFront(level, pos, blockState);
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}
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}
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}
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@Override
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protected void affectNeighborsAfterRemoval(BlockState state, ServerLevel level, BlockPos pos, boolean movedByPiston) {
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if ((Boolean)state.getValue(POWERED) && level.getBlockTicks().hasScheduledTick(pos, this)) {
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this.updateNeighborsInFront(level, pos, state.setValue(POWERED, false));
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}
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}
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@Override
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public BlockState getStateForPlacement(BlockPlaceContext context) {
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return this.defaultBlockState().setValue(FACING, context.getNearestLookingDirection().getOpposite().getOpposite());
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}
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}
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