hoosiertransfer-mod/src/main/java/net/hoosiertransfer/Culling/Provider.java

package net.hoosiertransfer.Culling;

import com.logisticscraft.occlusionculling.DataProvider;

import net.minecraft.client.Minecraft;
import net.minecraft.client.multiplayer.WorldClient;
import net.minecraft.util.BlockPos;

public class Provider implements DataProvider {
    private final Minecraft client = Minecraft.getMinecraft();
    private WorldClient world = null;

    @Override
    public boolean prepareChunk(int chunkX, int chunkZ) {
        world = client.theWorld;
        return world != null;
    }

    @Override
    public boolean isOpaqueFullCube(int x, int y, int z) {
        BlockPos pos = new BlockPos(x, y, z);
        return world.getBlockState(pos).getBlock().isOpaqueCube();
    }

    @Override
    public void cleanup() {
        world = null;
    }
}