236 lines
11 KiB
Java
236 lines
11 KiB
Java
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package net.minecraft.world.level.block;
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import com.mojang.math.OctahedralGroup;
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import com.mojang.math.Quadrant;
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import com.mojang.serialization.MapCodec;
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import com.mojang.serialization.codecs.RecordCodecBuilder;
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import com.mojang.serialization.codecs.RecordCodecBuilder.Instance;
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import java.util.Map;
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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.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.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.block.state.properties.EnumProperty;
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import net.minecraft.world.level.block.state.properties.Half;
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import net.minecraft.world.level.block.state.properties.StairsShape;
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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.pathfinder.PathComputationType;
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import net.minecraft.world.phys.shapes.CollisionContext;
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import net.minecraft.world.phys.shapes.Shapes;
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import net.minecraft.world.phys.shapes.VoxelShape;
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public class StairBlock extends Block implements SimpleWaterloggedBlock {
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public static final MapCodec<StairBlock> CODEC = RecordCodecBuilder.mapCodec(
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p_360454_ -> p_360454_.group(BlockState.CODEC.fieldOf("base_state").forGetter(p_309296_ -> p_309296_.baseState), propertiesCodec())
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.apply(p_360454_, StairBlock::new)
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);
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public static final EnumProperty<Direction> FACING = HorizontalDirectionalBlock.FACING;
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public static final EnumProperty<Half> HALF = BlockStateProperties.HALF;
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public static final EnumProperty<StairsShape> SHAPE = BlockStateProperties.STAIRS_SHAPE;
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public static final BooleanProperty WATERLOGGED = BlockStateProperties.WATERLOGGED;
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private static final VoxelShape SHAPE_OUTER = Shapes.or(Block.column(16.0, 0.0, 8.0), Block.box(0.0, 8.0, 0.0, 8.0, 16.0, 8.0));
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private static final VoxelShape SHAPE_STRAIGHT = Shapes.or(SHAPE_OUTER, Shapes.rotate(SHAPE_OUTER, OctahedralGroup.fromXYAngles(Quadrant.R0, Quadrant.R90)));
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private static final VoxelShape SHAPE_INNER = Shapes.or(SHAPE_STRAIGHT, Shapes.rotate(SHAPE_STRAIGHT, OctahedralGroup.fromXYAngles(Quadrant.R0, Quadrant.R90)));
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private static final Map<Direction, VoxelShape> SHAPE_BOTTOM_OUTER = Shapes.rotateHorizontal(SHAPE_OUTER);
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private static final Map<Direction, VoxelShape> SHAPE_BOTTOM_STRAIGHT = Shapes.rotateHorizontal(SHAPE_STRAIGHT);
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private static final Map<Direction, VoxelShape> SHAPE_BOTTOM_INNER = Shapes.rotateHorizontal(SHAPE_INNER);
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private static final Map<Direction, VoxelShape> SHAPE_TOP_OUTER = Shapes.rotateHorizontal(Shapes.rotate(SHAPE_OUTER, OctahedralGroup.INVERT_Y));
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private static final Map<Direction, VoxelShape> SHAPE_TOP_STRAIGHT = Shapes.rotateHorizontal(Shapes.rotate(SHAPE_STRAIGHT, OctahedralGroup.INVERT_Y));
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private static final Map<Direction, VoxelShape> SHAPE_TOP_INNER = Shapes.rotateHorizontal(Shapes.rotate(SHAPE_INNER, OctahedralGroup.INVERT_Y));
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private final Block base;
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protected final BlockState baseState;
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@Override
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public MapCodec<? extends StairBlock> codec() {
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return CODEC;
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}
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protected StairBlock(BlockState p_56862_, BlockBehaviour.Properties p_56863_) {
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super(p_56863_);
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this.registerDefaultState(
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this.stateDefinition
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.any()
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.setValue(FACING, Direction.NORTH)
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.setValue(HALF, Half.BOTTOM)
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.setValue(SHAPE, StairsShape.STRAIGHT)
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.setValue(WATERLOGGED, false)
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);
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this.base = p_56862_.getBlock();
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this.baseState = p_56862_;
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}
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@Override
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protected boolean useShapeForLightOcclusion(BlockState p_56967_) {
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return true;
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}
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@Override
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protected VoxelShape getShape(BlockState p_56956_, BlockGetter p_56957_, BlockPos p_56958_, CollisionContext p_56959_) {
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boolean flag = p_56956_.getValue(HALF) == Half.BOTTOM;
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Direction direction = p_56956_.getValue(FACING);
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Map map = switch ((StairsShape)p_56956_.getValue(SHAPE)) {
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case STRAIGHT -> flag ? SHAPE_BOTTOM_STRAIGHT : SHAPE_TOP_STRAIGHT;
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case OUTER_LEFT, OUTER_RIGHT -> flag ? SHAPE_BOTTOM_OUTER : SHAPE_TOP_OUTER;
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case INNER_RIGHT, INNER_LEFT -> flag ? SHAPE_BOTTOM_INNER : SHAPE_TOP_INNER;
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};
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return (VoxelShape)map.get(switch ((StairsShape)p_56956_.getValue(SHAPE)) {
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case STRAIGHT, OUTER_LEFT, INNER_RIGHT -> direction;
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case INNER_LEFT -> direction.getCounterClockWise();
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case OUTER_RIGHT -> direction.getClockWise();
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});
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}
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@Override
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public float getExplosionResistance() {
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return this.base.getExplosionResistance();
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}
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@Override
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public BlockState getStateForPlacement(BlockPlaceContext p_56872_) {
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Direction direction = p_56872_.getClickedFace();
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BlockPos blockpos = p_56872_.getClickedPos();
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FluidState fluidstate = p_56872_.getLevel().getFluidState(blockpos);
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BlockState blockstate = this.defaultBlockState()
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.setValue(FACING, p_56872_.getHorizontalDirection())
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.setValue(
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HALF,
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direction != Direction.DOWN && (direction == Direction.UP || !(p_56872_.getClickLocation().y - blockpos.getY() > 0.5))
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? Half.BOTTOM
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: Half.TOP
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)
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.setValue(WATERLOGGED, fluidstate.getType() == Fluids.WATER);
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return blockstate.setValue(SHAPE, getStairsShape(blockstate, p_56872_.getLevel(), blockpos));
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}
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@Override
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protected BlockState updateShape(
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BlockState p_56925_,
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LevelReader p_369543_,
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ScheduledTickAccess p_369679_,
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BlockPos p_56929_,
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Direction p_56926_,
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BlockPos p_56930_,
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BlockState p_56927_,
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RandomSource p_367682_
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) {
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if (p_56925_.getValue(WATERLOGGED)) {
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p_369679_.scheduleTick(p_56929_, Fluids.WATER, Fluids.WATER.getTickDelay(p_369543_));
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}
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return p_56926_.getAxis().isHorizontal()
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? p_56925_.setValue(SHAPE, getStairsShape(p_56925_, p_369543_, p_56929_))
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: super.updateShape(p_56925_, p_369543_, p_369679_, p_56929_, p_56926_, p_56930_, p_56927_, p_367682_);
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}
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private static StairsShape getStairsShape(BlockState p_56977_, BlockGetter p_56978_, BlockPos p_56979_) {
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Direction direction = p_56977_.getValue(FACING);
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BlockState blockstate = p_56978_.getBlockState(p_56979_.relative(direction));
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if (isStairs(blockstate) && p_56977_.getValue(HALF) == blockstate.getValue(HALF)) {
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Direction direction1 = blockstate.getValue(FACING);
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if (direction1.getAxis() != p_56977_.getValue(FACING).getAxis() && canTakeShape(p_56977_, p_56978_, p_56979_, direction1.getOpposite())) {
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if (direction1 == direction.getCounterClockWise()) {
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return StairsShape.OUTER_LEFT;
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}
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return StairsShape.OUTER_RIGHT;
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}
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}
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BlockState blockstate1 = p_56978_.getBlockState(p_56979_.relative(direction.getOpposite()));
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if (isStairs(blockstate1) && p_56977_.getValue(HALF) == blockstate1.getValue(HALF)) {
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Direction direction2 = blockstate1.getValue(FACING);
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if (direction2.getAxis() != p_56977_.getValue(FACING).getAxis() && canTakeShape(p_56977_, p_56978_, p_56979_, direction2)) {
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if (direction2 == direction.getCounterClockWise()) {
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return StairsShape.INNER_LEFT;
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}
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return StairsShape.INNER_RIGHT;
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}
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}
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return StairsShape.STRAIGHT;
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}
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private static boolean canTakeShape(BlockState p_56971_, BlockGetter p_56972_, BlockPos p_56973_, Direction p_56974_) {
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BlockState blockstate = p_56972_.getBlockState(p_56973_.relative(p_56974_));
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return !isStairs(blockstate)
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|| blockstate.getValue(FACING) != p_56971_.getValue(FACING)
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|| blockstate.getValue(HALF) != p_56971_.getValue(HALF);
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}
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public static boolean isStairs(BlockState p_56981_) {
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return p_56981_.getBlock() instanceof StairBlock;
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}
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@Override
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protected BlockState rotate(BlockState p_56922_, Rotation p_56923_) {
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return p_56922_.setValue(FACING, p_56923_.rotate(p_56922_.getValue(FACING)));
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}
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@Override
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protected BlockState mirror(BlockState p_56919_, Mirror p_56920_) {
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Direction direction = p_56919_.getValue(FACING);
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StairsShape stairsshape = p_56919_.getValue(SHAPE);
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switch (p_56920_) {
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case LEFT_RIGHT:
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if (direction.getAxis() == Direction.Axis.Z) {
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switch (stairsshape) {
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case OUTER_LEFT:
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return p_56919_.rotate(Rotation.CLOCKWISE_180).setValue(SHAPE, StairsShape.OUTER_RIGHT);
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case INNER_RIGHT:
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return p_56919_.rotate(Rotation.CLOCKWISE_180).setValue(SHAPE, StairsShape.INNER_LEFT);
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case INNER_LEFT:
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return p_56919_.rotate(Rotation.CLOCKWISE_180).setValue(SHAPE, StairsShape.INNER_RIGHT);
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case OUTER_RIGHT:
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return p_56919_.rotate(Rotation.CLOCKWISE_180).setValue(SHAPE, StairsShape.OUTER_LEFT);
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default:
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return p_56919_.rotate(Rotation.CLOCKWISE_180);
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}
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}
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break;
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case FRONT_BACK:
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if (direction.getAxis() == Direction.Axis.X) {
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switch (stairsshape) {
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case STRAIGHT:
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return p_56919_.rotate(Rotation.CLOCKWISE_180);
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case OUTER_LEFT:
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return p_56919_.rotate(Rotation.CLOCKWISE_180).setValue(SHAPE, StairsShape.OUTER_RIGHT);
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case INNER_RIGHT:
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return p_56919_.rotate(Rotation.CLOCKWISE_180).setValue(SHAPE, StairsShape.INNER_RIGHT);
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case INNER_LEFT:
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return p_56919_.rotate(Rotation.CLOCKWISE_180).setValue(SHAPE, StairsShape.INNER_LEFT);
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case OUTER_RIGHT:
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return p_56919_.rotate(Rotation.CLOCKWISE_180).setValue(SHAPE, StairsShape.OUTER_LEFT);
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}
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}
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}
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return super.mirror(p_56919_, p_56920_);
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}
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@Override
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protected void createBlockStateDefinition(StateDefinition.Builder<Block, BlockState> p_56932_) {
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p_56932_.add(FACING, HALF, SHAPE, WATERLOGGED);
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}
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@Override
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protected FluidState getFluidState(BlockState p_56969_) {
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return p_56969_.getValue(WATERLOGGED) ? Fluids.WATER.getSource(false) : super.getFluidState(p_56969_);
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}
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@Override
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protected boolean isPathfindable(BlockState p_56891_, PathComputationType p_56894_) {
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return false;
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}
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}
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