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| author | Kartik K. Agaram <vc@akkartik.com> | 2022-06-10 11:45:53 -0700 |
|---|---|---|
| committer | Kartik K. Agaram <vc@akkartik.com> | 2022-06-10 11:45:53 -0700 |
| commit | 79a12413700dca5816d6c27fc4951bdd7579e329 (patch) | |
| tree | 0c49c32a68c411320a7f65ce8bf323a9b1679d73 /undo.lua | |
| parent | fcacb6e63d1aefd7aedc858e6efa39d8102eb6ba (diff) | |
| download | text.love-79a12413700dca5816d6c27fc4951bdd7579e329.tar.gz | |
undo creating new drawings
Diffstat (limited to 'undo.lua')
| -rw-r--r-- | undo.lua | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/undo.lua b/undo.lua index 2513632..3007070 100644 --- a/undo.lua +++ b/undo.lua @@ -42,6 +42,11 @@ function snapshot(s,e) elseif e == nil then e = s end + assert(#Lines > 0) + if s < 1 then s = 1 end + if s > #Lines then s = #Lines end + if e < 1 then e = 1 end + if e > #Lines then e = #Lines end -- compare with App.initialize_globals local event = { screen_top=deepcopy(Screen_top1), |