Generates a stone platform at world origin or the static spawn point. Ideal to get started in the singlenode mapgen, but can be used in other mapgens as well.
Default size: 33×2×33. All stone, with a single cobblestone in the center.
The width can be changed with the spawnbuilder_width setting.
By default, the platform will be centered at (0,-1,0), but if the setting “static_spawnpoint” is present, the platform appears below that instead.
Also, 3 layers of air are generated above the platform, so it works in the underground, too.