190 lines
8.6 KiB
Java
190 lines
8.6 KiB
Java
package net.minecraft.world.level.block.piston;
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import com.mojang.serialization.MapCodec;
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import java.util.Arrays;
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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.entity.player.Player;
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import net.minecraft.world.item.ItemStack;
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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.Block;
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import net.minecraft.world.level.block.Blocks;
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import net.minecraft.world.level.block.DirectionalBlock;
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import net.minecraft.world.level.block.Mirror;
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import net.minecraft.world.level.block.Rotation;
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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.Builder;
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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.PistonType;
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import net.minecraft.world.level.pathfinder.PathComputationType;
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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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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 PistonHeadBlock extends DirectionalBlock {
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public static final MapCodec<PistonHeadBlock> CODEC = simpleCodec(PistonHeadBlock::new);
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public static final EnumProperty<PistonType> TYPE = BlockStateProperties.PISTON_TYPE;
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public static final BooleanProperty SHORT = BlockStateProperties.SHORT;
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public static final float PLATFORM = 4.0F;
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protected static final VoxelShape EAST_AABB = Block.box(12.0, 0.0, 0.0, 16.0, 16.0, 16.0);
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protected static final VoxelShape WEST_AABB = Block.box(0.0, 0.0, 0.0, 4.0, 16.0, 16.0);
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protected static final VoxelShape SOUTH_AABB = Block.box(0.0, 0.0, 12.0, 16.0, 16.0, 16.0);
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protected static final VoxelShape NORTH_AABB = Block.box(0.0, 0.0, 0.0, 16.0, 16.0, 4.0);
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protected static final VoxelShape UP_AABB = Block.box(0.0, 12.0, 0.0, 16.0, 16.0, 16.0);
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protected static final VoxelShape DOWN_AABB = Block.box(0.0, 0.0, 0.0, 16.0, 4.0, 16.0);
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protected static final float AABB_OFFSET = 2.0F;
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protected static final float EDGE_MIN = 6.0F;
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protected static final float EDGE_MAX = 10.0F;
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protected static final VoxelShape UP_ARM_AABB = Block.box(6.0, -4.0, 6.0, 10.0, 12.0, 10.0);
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protected static final VoxelShape DOWN_ARM_AABB = Block.box(6.0, 4.0, 6.0, 10.0, 20.0, 10.0);
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protected static final VoxelShape SOUTH_ARM_AABB = Block.box(6.0, 6.0, -4.0, 10.0, 10.0, 12.0);
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protected static final VoxelShape NORTH_ARM_AABB = Block.box(6.0, 6.0, 4.0, 10.0, 10.0, 20.0);
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protected static final VoxelShape EAST_ARM_AABB = Block.box(-4.0, 6.0, 6.0, 12.0, 10.0, 10.0);
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protected static final VoxelShape WEST_ARM_AABB = Block.box(4.0, 6.0, 6.0, 20.0, 10.0, 10.0);
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protected static final VoxelShape SHORT_UP_ARM_AABB = Block.box(6.0, 0.0, 6.0, 10.0, 12.0, 10.0);
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protected static final VoxelShape SHORT_DOWN_ARM_AABB = Block.box(6.0, 4.0, 6.0, 10.0, 16.0, 10.0);
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protected static final VoxelShape SHORT_SOUTH_ARM_AABB = Block.box(6.0, 6.0, 0.0, 10.0, 10.0, 12.0);
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protected static final VoxelShape SHORT_NORTH_ARM_AABB = Block.box(6.0, 6.0, 4.0, 10.0, 10.0, 16.0);
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protected static final VoxelShape SHORT_EAST_ARM_AABB = Block.box(0.0, 6.0, 6.0, 12.0, 10.0, 10.0);
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protected static final VoxelShape SHORT_WEST_ARM_AABB = Block.box(4.0, 6.0, 6.0, 16.0, 10.0, 10.0);
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private static final VoxelShape[] SHAPES_SHORT = makeShapes(true);
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private static final VoxelShape[] SHAPES_LONG = makeShapes(false);
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@Override
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protected MapCodec<PistonHeadBlock> codec() {
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return CODEC;
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}
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private static VoxelShape[] makeShapes(boolean extended) {
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return (VoxelShape[])Arrays.stream(Direction.values()).map(direction -> calculateShape(direction, extended)).toArray(VoxelShape[]::new);
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}
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private static VoxelShape calculateShape(Direction direction, boolean shortArm) {
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switch (direction) {
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case DOWN:
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default:
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return Shapes.or(DOWN_AABB, shortArm ? SHORT_DOWN_ARM_AABB : DOWN_ARM_AABB);
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case UP:
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return Shapes.or(UP_AABB, shortArm ? SHORT_UP_ARM_AABB : UP_ARM_AABB);
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case NORTH:
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return Shapes.or(NORTH_AABB, shortArm ? SHORT_NORTH_ARM_AABB : NORTH_ARM_AABB);
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case SOUTH:
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return Shapes.or(SOUTH_AABB, shortArm ? SHORT_SOUTH_ARM_AABB : SOUTH_ARM_AABB);
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case WEST:
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return Shapes.or(WEST_AABB, shortArm ? SHORT_WEST_ARM_AABB : WEST_ARM_AABB);
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case EAST:
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return Shapes.or(EAST_AABB, shortArm ? SHORT_EAST_ARM_AABB : EAST_ARM_AABB);
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}
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}
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public PistonHeadBlock(BlockBehaviour.Properties properties) {
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super(properties);
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this.registerDefaultState(this.stateDefinition.any().setValue(FACING, Direction.NORTH).setValue(TYPE, PistonType.DEFAULT).setValue(SHORT, false));
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}
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@Override
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protected boolean useShapeForLightOcclusion(BlockState state) {
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return true;
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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 (state.getValue(SHORT) ? SHAPES_SHORT : SHAPES_LONG)[((Direction)state.getValue(FACING)).ordinal()];
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}
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private boolean isFittingBase(BlockState baseState, BlockState extendedState) {
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Block block = baseState.getValue(TYPE) == PistonType.DEFAULT ? Blocks.PISTON : Blocks.STICKY_PISTON;
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return extendedState.is(block) && (Boolean)extendedState.getValue(PistonBaseBlock.EXTENDED) && extendedState.getValue(FACING) == baseState.getValue(FACING);
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}
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@Override
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public BlockState playerWillDestroy(Level level, BlockPos pos, BlockState state, Player player) {
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if (!level.isClientSide && player.getAbilities().instabuild) {
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BlockPos blockPos = pos.relative(((Direction)state.getValue(FACING)).getOpposite());
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if (this.isFittingBase(state, level.getBlockState(blockPos))) {
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level.destroyBlock(blockPos, false);
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}
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}
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return super.playerWillDestroy(level, pos, state, player);
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}
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@Override
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protected void onRemove(BlockState state, Level level, BlockPos pos, BlockState newState, boolean movedByPiston) {
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if (!state.is(newState.getBlock())) {
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super.onRemove(state, level, pos, newState, movedByPiston);
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BlockPos blockPos = pos.relative(((Direction)state.getValue(FACING)).getOpposite());
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if (this.isFittingBase(state, level.getBlockState(blockPos))) {
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level.destroyBlock(blockPos, true);
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}
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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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return direction.getOpposite() == state.getValue(FACING) && !state.canSurvive(level, pos)
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? Blocks.AIR.defaultBlockState()
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: super.updateShape(state, level, scheduledTickAccess, pos, direction, neighborPos, neighborState, random);
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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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BlockState blockState = level.getBlockState(pos.relative(((Direction)state.getValue(FACING)).getOpposite()));
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return this.isFittingBase(state, blockState) || blockState.is(Blocks.MOVING_PISTON) && blockState.getValue(FACING) == state.getValue(FACING);
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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 (state.canSurvive(level, pos)) {
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level.neighborChanged(
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pos.relative(((Direction)state.getValue(FACING)).getOpposite()),
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neighborBlock,
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ExperimentalRedstoneUtils.withFront(orientation, ((Direction)state.getValue(FACING)).getOpposite())
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);
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}
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}
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@Override
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protected ItemStack getCloneItemStack(LevelReader level, BlockPos pos, BlockState state, boolean includeData) {
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return new ItemStack(state.getValue(TYPE) == PistonType.STICKY ? Blocks.STICKY_PISTON : Blocks.PISTON);
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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 createBlockStateDefinition(Builder<Block, BlockState> builder) {
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builder.add(FACING, TYPE, SHORT);
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}
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@Override
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protected boolean isPathfindable(BlockState state, PathComputationType pathComputationType) {
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return false;
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}
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}
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