package net.minecraft.client.renderer.blockentity;

import it.unimi.dsi.fastutil.ints.Int2IntFunction;
import net.minecraft.client.renderer.LevelRenderer;
import net.minecraft.client.renderer.LightTexture;
import net.minecraft.world.level.block.DoubleBlockCombiner;
import net.minecraft.world.level.block.entity.BlockEntity;
import net.minecraftforge.api.distmarker.Dist;
import net.minecraftforge.api.distmarker.OnlyIn;

@OnlyIn(Dist.CLIENT)
public class BrightnessCombiner<S extends BlockEntity> implements DoubleBlockCombiner.Combiner<S, Int2IntFunction> {
    public Int2IntFunction acceptDouble(S p_112320_, S p_112321_) {
        return p_112325_ -> {
            int i = LevelRenderer.getLightColor(p_112320_.getLevel(), p_112320_.getBlockPos());
            int j = LevelRenderer.getLightColor(p_112321_.getLevel(), p_112321_.getBlockPos());
            int k = LightTexture.block(i);
            int l = LightTexture.block(j);
            int i1 = LightTexture.sky(i);
            int j1 = LightTexture.sky(j);
            return LightTexture.pack(Math.max(k, l), Math.max(i1, j1));
        };
    }

    public Int2IntFunction acceptSingle(S p_112318_) {
        return p_112333_ -> p_112333_;
    }

    public Int2IntFunction acceptNone() {
        return p_112316_ -> p_112316_;
    }
}