Minecraft Java Edition.Neo-medieval...

Minecraft Java Edition.Neo-medieval ant logistics megastructure.Materials enforced:white mushroom stem(primary walls/supports),acacia wood(internal floors,stairs,doors),red mushroom blocks(roof only),shroomlight(primary lighting),mycelium ground.No castles,no city walls,no shoreline logic.Flat terrain only.Schematic-safe.Design ONE long rectangular central city approx 600x200 blocks.Building mass MUST occupy the CENTER of the area with solid construction on ALL sides.No edges,no perimeter bias.3-5 floors,wide tower-like volumes merged into a continuous block.Long streets run parallel to the long axis.Multiple internal streets and warehouses inside the structure.No exterior docks or piers implied.Lighting only shroomlight embedded in ceilings and walls.Structure feels heavy