package net.minecraft.world.level.block;

import com.mojang.serialization.MapCodec;
import net.minecraft.core.BlockPos;
import net.minecraft.core.Direction;
import net.minecraft.tags.BlockTags;
import net.minecraft.util.RandomSource;
import net.minecraft.world.level.BlockGetter;
import net.minecraft.world.level.LevelReader;
import net.minecraft.world.level.ScheduledTickAccess;
import net.minecraft.world.level.block.state.BlockBehaviour;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.pathfinder.PathComputationType;

public abstract class VegetationBlock extends Block {
	protected VegetationBlock(final BlockBehaviour.Properties properties) {
		super(properties);
	}

	@Override
	protected abstract MapCodec<? extends VegetationBlock> codec();

	protected boolean mayPlaceOn(final BlockState state, final BlockGetter level, final BlockPos pos) {
		return state.is(BlockTags.SUPPORTS_VEGETATION);
	}

	@Override
	protected BlockState updateShape(
		final BlockState state,
		final LevelReader level,
		final ScheduledTickAccess ticks,
		final BlockPos pos,
		final Direction directionToNeighbour,
		final BlockPos neighbourPos,
		final BlockState neighbourState,
		final RandomSource random
	) {
		return !state.canSurvive(level, pos)
			? Blocks.AIR.defaultBlockState()
			: super.updateShape(state, level, ticks, pos, directionToNeighbour, neighbourPos, neighbourState, random);
	}

	@Override
	protected boolean canSurvive(final BlockState state, final LevelReader level, final BlockPos pos) {
		BlockPos below = pos.below();
		return this.mayPlaceOn(level.getBlockState(below), level, below);
	}

	@Override
	protected boolean propagatesSkylightDown(final BlockState state) {
		return state.getFluidState().isEmpty();
	}

	@Override
	protected boolean isPathfindable(final BlockState state, final PathComputationType type) {
		return type == PathComputationType.AIR && !this.hasCollision ? true : super.isPathfindable(state, type);
	}
}