package net.minecraft.client.renderer.blockentity;

import it.unimi.dsi.fastutil.ints.Int2IntFunction;
import net.minecraft.util.LightCoordsUtil;
import net.minecraft.world.level.block.DoubleBlockCombiner.Combiner;
import net.minecraft.world.level.block.entity.BlockEntity;

public class BrightnessCombiner<S extends BlockEntity> implements Combiner<S, Int2IntFunction> {
	public Int2IntFunction acceptDouble(final S first, final S second) {
		return i -> LightCoordsUtil.max(
			LightCoordsUtil.getLightCoords(first.getLevel(), first.getBlockPos()), LightCoordsUtil.getLightCoords(second.getLevel(), second.getBlockPos())
		);
	}

	public Int2IntFunction acceptSingle(final S single) {
		return i -> i;
	}

	public Int2IntFunction acceptNone() {
		return i -> i;
	}
}