Schematics

Schematics for Horizon.

Reads .litematic, .schem (Sponge versions 1 to 3), .schematic (numeric ids of 1.12 and before), .nbt, .mcstructure (Bedrock, translated on a best-effort basis) and .bp. Put files in schematics/ in the game folder.

• M: the menu: load a file, then move, turn, mirror or paste the placement.
• In the world: missing blocks show as see-through ghosts, wrong blocks red, wrong states orange, extra blocks magenta.
• Materials: what it takes, what is missing and what you carry.
• Save area: a stick's left and right clicks set two corners; save them as .litematic, .schem or .nbt.
• Page Up / Page Down: one layer at a time.
• /schematics (or /sch): the same from chat.

What it does and doesn't do: it reads the game's world, block models and player, and draws over the world, the HUD and its own screen. It reads and writes schematic files in schematics/ and its settings and placements in horizon-mods/.horizon-mod-data/schematics/. It opens no network connections. Pasting in single player runs on the world's own server; on a server it sends /setblock and /summon commands, which need permission there.

Written from scratch for Horizon. Pinned to Horizon c9d474d, because it reads the game's block models, atlas and world, and the single player server's levels.