//undo undo the latest worldedit command
//redo redo what was just undone
//show_journal view what can be undone and redone

The changes of nodes after invoking /set are compressed to improve memory usage.

Related issues:

• https://github.com/Uberi/Minetest-WorldEdit/issues/43
• https://forum.minetest.net/viewtopic.php?p=296543#p296543

Supported chatcommands:

• /pos1 and /1
• /pos2 and /2
• /p
• /set and /s
• /mix
• /replace and /r
• /replaceinverse and /ri
• /sphere and /spr
• /hollowsphere and /hspr
• /dome and /do
• /hollowdome and /hdo
• /cylinder and /cyl
• /hollowcylinder and /hcyl
• /pyramid and /pyr
• /hollowpyramid and /hpyr
• /spiral
• /load
• /mtschemplace
• /y
• /n

Ignored chatcommands:

• /lua
• /clearobjects
• /fixlight
• /save
• /mtschemcreate
• /mtschemprob
• /inspect /i
• /mark /mk
• /unmark /umk
• /volume and /v
• /about

Not yet implemented:

• /fixedpos /fp
• /reset /rst
• /shift
• /expand
• /contract
• /outset
• /inset
• /cube /hollowcube
• /copy
• /move
• /stack
• /stack2
• /scale
• /transpose
• /flip
• /rotate
• /orient
• /drain
• /hide
• /suppress
• /highlight
• /restore
• /allocate
• /deleteblocks
• /luatransform

TODO:

• Add parameters to undo and redo: undo the last n
• Allow undoing changes which happened before other changes (considered unsafe) e.g. //undo ~1 to undo the change before the latest one
• Add times to the changes, show in //show_journal
• Implement more commands
• worldedit pyramid fix
• Fix the shown "nodes changed" count