303 lines
9.4 KiB
Java
303 lines
9.4 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.server.level.ServerLevel;
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import net.minecraft.tags.BlockTags;
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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.properties.BlockStateProperties;
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import net.minecraft.world.level.block.state.properties.BooleanProperty;
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import net.minecraft.world.level.block.state.properties.Property;
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import net.minecraft.world.level.block.state.properties.RailShape;
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import net.minecraft.world.level.material.FluidState;
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import net.minecraft.world.level.material.Fluids;
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import net.minecraft.world.level.redstone.Orientation;
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import net.minecraft.world.phys.shapes.CollisionContext;
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import net.minecraft.world.phys.shapes.VoxelShape;
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import org.jetbrains.annotations.Nullable;
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public abstract class BaseRailBlock extends Block implements SimpleWaterloggedBlock {
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public static final BooleanProperty WATERLOGGED = BlockStateProperties.WATERLOGGED;
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private static final VoxelShape SHAPE_FLAT = Block.column(16.0, 0.0, 2.0);
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private static final VoxelShape SHAPE_SLOPE = Block.column(16.0, 0.0, 8.0);
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private final boolean isStraight;
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public static boolean isRail(Level level, BlockPos pos) {
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return isRail(level.getBlockState(pos));
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}
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public static boolean isRail(BlockState state) {
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return state.is(BlockTags.RAILS) && state.getBlock() instanceof BaseRailBlock;
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}
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protected BaseRailBlock(boolean isStraight, BlockBehaviour.Properties properties) {
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super(properties);
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this.isStraight = isStraight;
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}
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@Override
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protected abstract MapCodec<? extends BaseRailBlock> codec();
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public boolean isStraight() {
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return this.isStraight;
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}
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@Override
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protected VoxelShape getShape(BlockState state, BlockGetter level, BlockPos pos, CollisionContext context) {
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return ((RailShape)state.getValue(this.getShapeProperty())).isSlope() ? SHAPE_SLOPE : SHAPE_FLAT;
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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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return canSupportRigidBlock(level, pos.below());
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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 (!oldState.is(state.getBlock())) {
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this.updateState(state, level, pos, movedByPiston);
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}
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}
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protected BlockState updateState(BlockState state, Level level, BlockPos pos, boolean movedByPiston) {
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state = this.updateDir(level, pos, state, true);
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if (this.isStraight) {
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level.neighborChanged(state, pos, this, null, movedByPiston);
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}
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return state;
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}
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@Override
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protected void neighborChanged(BlockState state, Level level, BlockPos pos, Block neighborBlock, @Nullable Orientation orientation, boolean movedByPiston) {
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if (!level.isClientSide && level.getBlockState(pos).is(this)) {
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RailShape railShape = state.getValue(this.getShapeProperty());
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if (shouldBeRemoved(pos, level, railShape)) {
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dropResources(state, level, pos);
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level.removeBlock(pos, movedByPiston);
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} else {
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this.updateState(state, level, pos, neighborBlock);
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}
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}
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}
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private static boolean shouldBeRemoved(BlockPos pos, Level level, RailShape shape) {
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if (!canSupportRigidBlock(level, pos.below())) {
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return true;
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} else {
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switch (shape) {
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case ASCENDING_EAST:
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return !canSupportRigidBlock(level, pos.east());
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case ASCENDING_WEST:
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return !canSupportRigidBlock(level, pos.west());
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case ASCENDING_NORTH:
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return !canSupportRigidBlock(level, pos.north());
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case ASCENDING_SOUTH:
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return !canSupportRigidBlock(level, pos.south());
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default:
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return false;
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}
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}
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}
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protected void updateState(BlockState state, Level level, BlockPos pos, Block neighborBlock) {
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}
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protected BlockState updateDir(Level level, BlockPos pos, BlockState state, boolean alwaysPlace) {
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if (level.isClientSide) {
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return state;
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} else {
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RailShape railShape = state.getValue(this.getShapeProperty());
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return new RailState(level, pos, state).place(level.hasNeighborSignal(pos), alwaysPlace, railShape).getState();
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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 (!movedByPiston) {
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if (((RailShape)state.getValue(this.getShapeProperty())).isSlope()) {
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level.updateNeighborsAt(pos.above(), this);
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}
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if (this.isStraight) {
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level.updateNeighborsAt(pos, this);
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level.updateNeighborsAt(pos.below(), this);
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}
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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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FluidState fluidState = context.getLevel().getFluidState(context.getClickedPos());
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boolean bl = fluidState.getType() == Fluids.WATER;
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BlockState blockState = super.defaultBlockState();
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Direction direction = context.getHorizontalDirection();
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boolean bl2 = direction == Direction.EAST || direction == Direction.WEST;
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return blockState.setValue(this.getShapeProperty(), bl2 ? RailShape.EAST_WEST : RailShape.NORTH_SOUTH).setValue(WATERLOGGED, bl);
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}
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public abstract Property<RailShape> getShapeProperty();
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protected RailShape rotate(RailShape railShape, Rotation rotation) {
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return switch (rotation) {
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case CLOCKWISE_180 -> {
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switch (railShape) {
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case ASCENDING_EAST:
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yield RailShape.ASCENDING_WEST;
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case ASCENDING_WEST:
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yield RailShape.ASCENDING_EAST;
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case ASCENDING_NORTH:
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yield RailShape.ASCENDING_SOUTH;
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case ASCENDING_SOUTH:
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yield RailShape.ASCENDING_NORTH;
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case NORTH_SOUTH:
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yield RailShape.NORTH_SOUTH;
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case EAST_WEST:
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yield RailShape.EAST_WEST;
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case SOUTH_EAST:
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yield RailShape.NORTH_WEST;
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case SOUTH_WEST:
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yield RailShape.NORTH_EAST;
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case NORTH_WEST:
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yield RailShape.SOUTH_EAST;
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case NORTH_EAST:
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yield RailShape.SOUTH_WEST;
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default:
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throw new MatchException(null, null);
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}
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}
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case COUNTERCLOCKWISE_90 -> {
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switch (railShape) {
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case ASCENDING_EAST:
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yield RailShape.ASCENDING_NORTH;
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case ASCENDING_WEST:
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yield RailShape.ASCENDING_SOUTH;
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case ASCENDING_NORTH:
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yield RailShape.ASCENDING_WEST;
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case ASCENDING_SOUTH:
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yield RailShape.ASCENDING_EAST;
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case NORTH_SOUTH:
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yield RailShape.EAST_WEST;
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case EAST_WEST:
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yield RailShape.NORTH_SOUTH;
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case SOUTH_EAST:
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yield RailShape.NORTH_EAST;
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case SOUTH_WEST:
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yield RailShape.SOUTH_EAST;
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case NORTH_WEST:
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yield RailShape.SOUTH_WEST;
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case NORTH_EAST:
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yield RailShape.NORTH_WEST;
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default:
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throw new MatchException(null, null);
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}
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}
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case CLOCKWISE_90 -> {
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switch (railShape) {
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case ASCENDING_EAST:
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yield RailShape.ASCENDING_SOUTH;
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case ASCENDING_WEST:
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yield RailShape.ASCENDING_NORTH;
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case ASCENDING_NORTH:
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yield RailShape.ASCENDING_EAST;
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case ASCENDING_SOUTH:
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yield RailShape.ASCENDING_WEST;
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case NORTH_SOUTH:
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yield RailShape.EAST_WEST;
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case EAST_WEST:
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yield RailShape.NORTH_SOUTH;
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case SOUTH_EAST:
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yield RailShape.SOUTH_WEST;
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case SOUTH_WEST:
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yield RailShape.NORTH_WEST;
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case NORTH_WEST:
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yield RailShape.NORTH_EAST;
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case NORTH_EAST:
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yield RailShape.SOUTH_EAST;
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default:
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throw new MatchException(null, null);
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}
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}
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default -> railShape;
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};
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}
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protected RailShape mirror(RailShape railShape, Mirror mirror) {
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return switch (mirror) {
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case LEFT_RIGHT -> {
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switch (railShape) {
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case ASCENDING_NORTH:
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yield RailShape.ASCENDING_SOUTH;
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case ASCENDING_SOUTH:
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yield RailShape.ASCENDING_NORTH;
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case NORTH_SOUTH:
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case EAST_WEST:
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default:
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yield railShape;
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case SOUTH_EAST:
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yield RailShape.NORTH_EAST;
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case SOUTH_WEST:
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yield RailShape.NORTH_WEST;
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case NORTH_WEST:
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yield RailShape.SOUTH_WEST;
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case NORTH_EAST:
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yield RailShape.SOUTH_EAST;
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}
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}
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case FRONT_BACK -> {
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switch (railShape) {
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case ASCENDING_EAST:
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yield RailShape.ASCENDING_WEST;
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case ASCENDING_WEST:
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yield RailShape.ASCENDING_EAST;
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case ASCENDING_NORTH:
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case ASCENDING_SOUTH:
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case NORTH_SOUTH:
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case EAST_WEST:
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default:
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yield railShape;
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case SOUTH_EAST:
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yield RailShape.SOUTH_WEST;
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case SOUTH_WEST:
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yield RailShape.SOUTH_EAST;
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case NORTH_WEST:
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yield RailShape.NORTH_EAST;
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case NORTH_EAST:
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yield RailShape.NORTH_WEST;
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}
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}
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default -> railShape;
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};
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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 ((Boolean)state.getValue(WATERLOGGED)) {
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scheduledTickAccess.scheduleTick(pos, Fluids.WATER, Fluids.WATER.getTickDelay(level));
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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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@Override
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protected FluidState getFluidState(BlockState state) {
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return state.getValue(WATERLOGGED) ? Fluids.WATER.getSource(false) : super.getFluidState(state);
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}
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}
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