src/game/java/net/minecraft/client/renderer/debug/VillageSectionsDebugRenderer.java

package net.minecraft.client.renderer.debug;

import com.google.common.collect.Sets;
import com.mojang.blaze3d.vertex.PoseStack;
import java.util.Set;
import net.minecraft.client.renderer.MultiBufferSource;
import net.minecraft.core.BlockPos;
import net.minecraft.core.SectionPos;
import net.minecraftforge.api.distmarker.Dist;
import net.minecraftforge.api.distmarker.OnlyIn;

@OnlyIn(Dist.CLIENT)
public class VillageSectionsDebugRenderer implements DebugRenderer.SimpleDebugRenderer {
    private static final int MAX_RENDER_DIST_FOR_VILLAGE_SECTIONS = 60;
    private final Set<SectionPos> villageSections = Sets.newHashSet();

    VillageSectionsDebugRenderer() {
    }

    @Override
    public void clear() {
        this.villageSections.clear();
    }

    public void setVillageSection(SectionPos p_113710_) {
        this.villageSections.add(p_113710_);
    }

    public void setNotVillageSection(SectionPos p_113712_) {
        this.villageSections.remove(p_113712_);
    }

    @Override
    public void render(PoseStack p_113701_, MultiBufferSource p_113702_, double p_113703_, double p_113704_, double p_113705_) {
        BlockPos blockpos = BlockPos.containing(p_113703_, p_113704_, p_113705_);
        this.villageSections.forEach(p_269747_ -> {
            if (blockpos.closerThan(p_269747_.center(), 60.0)) {
                highlightVillageSection(p_113701_, p_113702_, p_269747_);
            }
        });
    }

    private static void highlightVillageSection(PoseStack p_270832_, MultiBufferSource p_270443_, SectionPos p_271021_) {
        DebugRenderer.renderFilledUnitCube(p_270832_, p_270443_, p_271021_.center(), 0.2F, 1.0F, 0.2F, 0.15F);
    }
}