LegendQuest: WadCraft

The first version, for Minecraft 1.21.11 on NeoForge.

• Reads IWADs and PWADs, with Doom and Hexen binary maps.
• /wadcraft list, maps, info, build [here|look] [scale], undo and cancel, for operators. WadCraftApi for other mods.
• Builds each map's floors, ceilings and walls, sealed all round, with rooms open to the sky where Doom has sky, and outdoor walls raised to the nearby sky.
• Colours each texture and flat with the block nearest its average colour, read from the WAD; config/wadcraft/blocks.json overrides by name.
• Half-block floors: slabs for half steps, and stairs facing up a step.
• Damaging floors become lava where it cannot spill, magma where it could.
• Doors are built open; lifts are built raised, with a ladder up the face.
• Thin walls, windows, lintels and door frames narrower than a block are kept, a block thick, rather than lost between columns.
• Every opening a Doom player can walk through is walkable: checked across all 267 maps of the WADs it was developed against.
• Sector lighting with invisible light blocks.
• No flammable blocks in the automatic palette.
• Placement is a slice per tick; /wadcraft undo restores what the last build replaced (block states only, kept in memory until the server stops).