Create a Minecraft BoxPvP map struc...

Create a Minecraft BoxPvP map structure. Dimensions: 200x200 square arena. Walls should be 30 blocks high, made of a mix of Polished Blackstone and Cyan Stained Glass. The floor should be a flat grid pattern using Sea Lanterns and Gray Concrete. Include a symmetrical spawn area in the center with 4 exit points. Style: Clean, futuristic, and optimized for high FPS.