360 lines
13 KiB
Java
360 lines
13 KiB
Java
package net.minecraft.world.level.block;
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import com.google.common.collect.ImmutableMap;
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import com.mojang.serialization.MapCodec;
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import java.util.Map;
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import java.util.function.Function;
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import java.util.stream.Collectors;
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import net.minecraft.Util;
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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.GameRules;
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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.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.BooleanProperty;
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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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import org.jetbrains.annotations.Nullable;
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public class VineBlock extends Block {
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public static final MapCodec<VineBlock> CODEC = simpleCodec(VineBlock::new);
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public static final BooleanProperty UP = PipeBlock.UP;
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public static final BooleanProperty NORTH = PipeBlock.NORTH;
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public static final BooleanProperty EAST = PipeBlock.EAST;
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public static final BooleanProperty SOUTH = PipeBlock.SOUTH;
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public static final BooleanProperty WEST = PipeBlock.WEST;
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public static final Map<Direction, BooleanProperty> PROPERTY_BY_DIRECTION = (Map<Direction, BooleanProperty>)PipeBlock.PROPERTY_BY_DIRECTION
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.entrySet()
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.stream()
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.filter(entry -> entry.getKey() != Direction.DOWN)
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.collect(Util.toMap());
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protected static final float AABB_OFFSET = 1.0F;
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private static final VoxelShape UP_AABB = Block.box(0.0, 15.0, 0.0, 16.0, 16.0, 16.0);
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private static final VoxelShape WEST_AABB = Block.box(0.0, 0.0, 0.0, 1.0, 16.0, 16.0);
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private static final VoxelShape EAST_AABB = Block.box(15.0, 0.0, 0.0, 16.0, 16.0, 16.0);
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private static final VoxelShape NORTH_AABB = Block.box(0.0, 0.0, 0.0, 16.0, 16.0, 1.0);
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private static final VoxelShape SOUTH_AABB = Block.box(0.0, 0.0, 15.0, 16.0, 16.0, 16.0);
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private final Map<BlockState, VoxelShape> shapesCache;
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@Override
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public MapCodec<VineBlock> codec() {
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return CODEC;
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}
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public VineBlock(BlockBehaviour.Properties properties) {
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super(properties);
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this.registerDefaultState(
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this.stateDefinition.any().setValue(UP, false).setValue(NORTH, false).setValue(EAST, false).setValue(SOUTH, false).setValue(WEST, false)
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);
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this.shapesCache = ImmutableMap.copyOf(
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(Map<? extends BlockState, ? extends VoxelShape>)this.stateDefinition
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.getPossibleStates()
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.stream()
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.collect(Collectors.toMap(Function.identity(), VineBlock::calculateShape))
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);
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}
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private static VoxelShape calculateShape(BlockState state) {
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VoxelShape voxelShape = Shapes.empty();
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if ((Boolean)state.getValue(UP)) {
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voxelShape = UP_AABB;
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}
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if ((Boolean)state.getValue(NORTH)) {
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voxelShape = Shapes.or(voxelShape, NORTH_AABB);
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}
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if ((Boolean)state.getValue(SOUTH)) {
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voxelShape = Shapes.or(voxelShape, SOUTH_AABB);
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}
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if ((Boolean)state.getValue(EAST)) {
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voxelShape = Shapes.or(voxelShape, EAST_AABB);
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}
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if ((Boolean)state.getValue(WEST)) {
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voxelShape = Shapes.or(voxelShape, WEST_AABB);
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}
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return voxelShape.isEmpty() ? Shapes.block() : voxelShape;
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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 (VoxelShape)this.shapesCache.get(state);
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}
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@Override
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protected boolean propagatesSkylightDown(BlockState state, BlockGetter level, BlockPos pos) {
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return true;
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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 this.hasFaces(this.getUpdatedState(state, level, pos));
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}
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private boolean hasFaces(BlockState state) {
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return this.countFaces(state) > 0;
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}
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private int countFaces(BlockState state) {
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int i = 0;
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for (BooleanProperty booleanProperty : PROPERTY_BY_DIRECTION.values()) {
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if ((Boolean)state.getValue(booleanProperty)) {
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i++;
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}
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}
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return i;
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}
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private boolean canSupportAtFace(BlockGetter level, BlockPos pos, Direction direction) {
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if (direction == Direction.DOWN) {
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return false;
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} else {
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BlockPos blockPos = pos.relative(direction);
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if (isAcceptableNeighbour(level, blockPos, direction)) {
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return true;
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} else if (direction.getAxis() == Direction.Axis.Y) {
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return false;
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} else {
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BooleanProperty booleanProperty = (BooleanProperty)PROPERTY_BY_DIRECTION.get(direction);
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BlockState blockState = level.getBlockState(pos.above());
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return blockState.is(this) && (Boolean)blockState.getValue(booleanProperty);
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}
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}
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}
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public static boolean isAcceptableNeighbour(BlockGetter blockReader, BlockPos neighborPos, Direction attachedFace) {
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return MultifaceBlock.canAttachTo(blockReader, attachedFace, neighborPos, blockReader.getBlockState(neighborPos));
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}
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private BlockState getUpdatedState(BlockState state, BlockGetter level, BlockPos pos) {
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BlockPos blockPos = pos.above();
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if ((Boolean)state.getValue(UP)) {
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state = state.setValue(UP, isAcceptableNeighbour(level, blockPos, Direction.DOWN));
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}
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BlockState blockState = null;
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for (Direction direction : Direction.Plane.HORIZONTAL) {
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BooleanProperty booleanProperty = getPropertyForFace(direction);
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if ((Boolean)state.getValue(booleanProperty)) {
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boolean bl = this.canSupportAtFace(level, pos, direction);
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if (!bl) {
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if (blockState == null) {
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blockState = level.getBlockState(blockPos);
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}
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bl = blockState.is(this) && (Boolean)blockState.getValue(booleanProperty);
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}
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state = state.setValue(booleanProperty, bl);
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}
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}
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return state;
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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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if (direction == Direction.DOWN) {
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return super.updateShape(state, direction, neighborState, level, pos, neighborPos);
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} else {
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BlockState blockState = this.getUpdatedState(state, level, pos);
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return !this.hasFaces(blockState) ? Blocks.AIR.defaultBlockState() : blockState;
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}
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}
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@Override
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protected void randomTick(BlockState state, ServerLevel level, BlockPos pos, RandomSource random) {
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if (level.getGameRules().getBoolean(GameRules.RULE_DO_VINES_SPREAD)) {
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if (random.nextInt(4) == 0) {
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Direction direction = Direction.getRandom(random);
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BlockPos blockPos = pos.above();
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if (direction.getAxis().isHorizontal() && !(Boolean)state.getValue(getPropertyForFace(direction))) {
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if (this.canSpread(level, pos)) {
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BlockPos blockPos2 = pos.relative(direction);
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BlockState blockState = level.getBlockState(blockPos2);
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if (blockState.isAir()) {
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Direction direction2 = direction.getClockWise();
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Direction direction3 = direction.getCounterClockWise();
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boolean bl = (Boolean)state.getValue(getPropertyForFace(direction2));
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boolean bl2 = (Boolean)state.getValue(getPropertyForFace(direction3));
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BlockPos blockPos3 = blockPos2.relative(direction2);
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BlockPos blockPos4 = blockPos2.relative(direction3);
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if (bl && isAcceptableNeighbour(level, blockPos3, direction2)) {
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level.setBlock(blockPos2, this.defaultBlockState().setValue(getPropertyForFace(direction2), true), 2);
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} else if (bl2 && isAcceptableNeighbour(level, blockPos4, direction3)) {
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level.setBlock(blockPos2, this.defaultBlockState().setValue(getPropertyForFace(direction3), true), 2);
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} else {
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Direction direction4 = direction.getOpposite();
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if (bl && level.isEmptyBlock(blockPos3) && isAcceptableNeighbour(level, pos.relative(direction2), direction4)) {
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level.setBlock(blockPos3, this.defaultBlockState().setValue(getPropertyForFace(direction4), true), 2);
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} else if (bl2 && level.isEmptyBlock(blockPos4) && isAcceptableNeighbour(level, pos.relative(direction3), direction4)) {
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level.setBlock(blockPos4, this.defaultBlockState().setValue(getPropertyForFace(direction4), true), 2);
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} else if (random.nextFloat() < 0.05 && isAcceptableNeighbour(level, blockPos2.above(), Direction.UP)) {
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level.setBlock(blockPos2, this.defaultBlockState().setValue(UP, true), 2);
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}
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}
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} else if (isAcceptableNeighbour(level, blockPos2, direction)) {
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level.setBlock(pos, state.setValue(getPropertyForFace(direction), true), 2);
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}
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}
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} else {
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if (direction == Direction.UP && pos.getY() < level.getMaxBuildHeight() - 1) {
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if (this.canSupportAtFace(level, pos, direction)) {
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level.setBlock(pos, state.setValue(UP, true), 2);
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return;
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}
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if (level.isEmptyBlock(blockPos)) {
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if (!this.canSpread(level, pos)) {
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return;
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}
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BlockState blockState2 = state;
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for (Direction direction2 : Direction.Plane.HORIZONTAL) {
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if (random.nextBoolean() || !isAcceptableNeighbour(level, blockPos.relative(direction2), direction2)) {
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blockState2 = blockState2.setValue(getPropertyForFace(direction2), false);
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}
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}
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if (this.hasHorizontalConnection(blockState2)) {
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level.setBlock(blockPos, blockState2, 2);
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}
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return;
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}
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}
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if (pos.getY() > level.getMinBuildHeight()) {
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BlockPos blockPos2 = pos.below();
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BlockState blockState = level.getBlockState(blockPos2);
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if (blockState.isAir() || blockState.is(this)) {
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BlockState blockState3 = blockState.isAir() ? this.defaultBlockState() : blockState;
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BlockState blockState4 = this.copyRandomFaces(state, blockState3, random);
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if (blockState3 != blockState4 && this.hasHorizontalConnection(blockState4)) {
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level.setBlock(blockPos2, blockState4, 2);
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}
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}
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}
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}
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}
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}
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}
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private BlockState copyRandomFaces(BlockState sourceState, BlockState spreadState, RandomSource random) {
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for (Direction direction : Direction.Plane.HORIZONTAL) {
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if (random.nextBoolean()) {
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BooleanProperty booleanProperty = getPropertyForFace(direction);
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if ((Boolean)sourceState.getValue(booleanProperty)) {
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spreadState = spreadState.setValue(booleanProperty, true);
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}
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}
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}
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return spreadState;
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}
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private boolean hasHorizontalConnection(BlockState state) {
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return (Boolean)state.getValue(NORTH) || (Boolean)state.getValue(EAST) || (Boolean)state.getValue(SOUTH) || (Boolean)state.getValue(WEST);
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}
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private boolean canSpread(BlockGetter blockReader, BlockPos pos) {
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int i = 4;
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Iterable<BlockPos> iterable = BlockPos.betweenClosed(pos.getX() - 4, pos.getY() - 1, pos.getZ() - 4, pos.getX() + 4, pos.getY() + 1, pos.getZ() + 4);
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int j = 5;
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for (BlockPos blockPos : iterable) {
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if (blockReader.getBlockState(blockPos).is(this)) {
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if (--j <= 0) {
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return false;
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}
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}
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}
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return true;
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}
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@Override
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protected boolean canBeReplaced(BlockState state, BlockPlaceContext useContext) {
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BlockState blockState = useContext.getLevel().getBlockState(useContext.getClickedPos());
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return blockState.is(this) ? this.countFaces(blockState) < PROPERTY_BY_DIRECTION.size() : super.canBeReplaced(state, useContext);
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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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BlockState blockState = context.getLevel().getBlockState(context.getClickedPos());
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boolean bl = blockState.is(this);
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BlockState blockState2 = bl ? blockState : this.defaultBlockState();
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for (Direction direction : context.getNearestLookingDirections()) {
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if (direction != Direction.DOWN) {
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BooleanProperty booleanProperty = getPropertyForFace(direction);
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boolean bl2 = bl && (Boolean)blockState.getValue(booleanProperty);
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if (!bl2 && this.canSupportAtFace(context.getLevel(), context.getClickedPos(), direction)) {
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return blockState2.setValue(booleanProperty, true);
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}
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}
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}
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return bl ? blockState2 : null;
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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(UP, NORTH, EAST, SOUTH, WEST);
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}
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@Override
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protected BlockState rotate(BlockState state, Rotation rotation) {
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switch (rotation) {
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case CLOCKWISE_180:
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return state.setValue(NORTH, (Boolean)state.getValue(SOUTH))
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.setValue(EAST, (Boolean)state.getValue(WEST))
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.setValue(SOUTH, (Boolean)state.getValue(NORTH))
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.setValue(WEST, (Boolean)state.getValue(EAST));
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case COUNTERCLOCKWISE_90:
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return state.setValue(NORTH, (Boolean)state.getValue(EAST))
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.setValue(EAST, (Boolean)state.getValue(SOUTH))
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.setValue(SOUTH, (Boolean)state.getValue(WEST))
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.setValue(WEST, (Boolean)state.getValue(NORTH));
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case CLOCKWISE_90:
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return state.setValue(NORTH, (Boolean)state.getValue(WEST))
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.setValue(EAST, (Boolean)state.getValue(NORTH))
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.setValue(SOUTH, (Boolean)state.getValue(EAST))
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.setValue(WEST, (Boolean)state.getValue(SOUTH));
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default:
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return state;
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}
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}
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@Override
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protected BlockState mirror(BlockState state, Mirror mirror) {
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switch (mirror) {
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case LEFT_RIGHT:
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return state.setValue(NORTH, (Boolean)state.getValue(SOUTH)).setValue(SOUTH, (Boolean)state.getValue(NORTH));
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case FRONT_BACK:
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return state.setValue(EAST, (Boolean)state.getValue(WEST)).setValue(WEST, (Boolean)state.getValue(EAST));
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default:
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return super.mirror(state, mirror);
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}
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}
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public static BooleanProperty getPropertyForFace(Direction face) {
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return (BooleanProperty)PROPERTY_BY_DIRECTION.get(face);
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}
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}
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