private StructureStart a(GeneratorAccess generatoraccess, ChunkGenerator<? extends GeneratorSettings> chunkgenerator, SeededRandom seededrandom, long i) {
        if (!chunkgenerator.getWorldChunkManager().a(this)) {
            return StructureGenerator.a;
        } else {
            Long2ObjectMap long2objectmap = chunkgenerator.getStructureStartCache(this);
            StructureStart structurestart = (StructureStart) long2objectmap.get(i);

            if (structurestart != null) {
                return structurestart;
            } else {
                ChunkCoordIntPair chunkcoordintpair = new ChunkCoordIntPair(i);
                IChunkAccess ichunkaccess = generatoraccess.getChunkProvider().getChunkAt(chunkcoordintpair.x, chunkcoordintpair.z, false, false); // Paper - don't load chunks

                if (ichunkaccess != null) {
                    structurestart = ichunkaccess.a(this.a());
                    if (structurestart != null) {
                        long2objectmap.put(i, structurestart);
                        return structurestart;
                    }
                }

                if (this.a(chunkgenerator, seededrandom, chunkcoordintpair.x, chunkcoordintpair.z)) {
                    StructureStart structurestart1 = this.a(generatoraccess, chunkgenerator, seededrandom, chunkcoordintpair.x, chunkcoordintpair.z);

                    structurestart = structurestart1.b() ? structurestart1 : StructureGenerator.a;
                } else {
                    structurestart = StructureGenerator.a;
                }

                if (structurestart.b()) {
                    generatoraccess.getChunkProvider().a(chunkcoordintpair.x, chunkcoordintpair.z, true).a(this.a(), structurestart);
                }

                long2objectmap.put(i, structurestart);
                return structurestart;
            }
        }
    }