TsengPinRuei/Minecraftin — reverse-engineered prompt

Build me a small desktop sandbox game in Java that feels like classic early Minecraft, but creative mode only. I want to be able to load into a procedural block world with different biomes like plains, forests, deserts, snowy areas, mountains, and badlands, plus caves, water, and trees. The player should move in first person, with walking, sprinting, crouching, jumping, swimming, ladder climbing, and toggleable flight.

Let me break and place blocks, use a simple creative inventory with pages and a 9 slot hotbar, and include a nice variety of building blocks like wood, stone, glass, stairs, slabs, fences, doors, trapdoors, ladders, torches, chests, and glowing blocks. I also want a day night cycle, smooth lighting with glowing blocks, clouds, a debug overlay, and local world saving so the map, player position, and time persist.

Please make it runnable with Gradle on Windows, Mac, and Linux, and keep settings like render distance, seed, and save path easy to tweak. Look up current docs online if you need to.