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r2492 | helixhorned | 2012-03-17 04:35:35 -0700 (Sat, 17 Mar 2012) | 6 lines

Remix undo/redo system, fixing potential access of freed memory.

A run of consecutive mapstates may share sector/wall/sprite blocks, but
the code was deciding whether to free them solely on local properties.
Now, save a reference count at the beginning of each such allocated block
and free it only if it reaches zero.
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r2491 | helixhorned | 2012-03-17 04:35:16 -0700 (Sat, 17 Mar 2012) | 1 line

In undo/redo, always print the revision that got _restored_.
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r2490 | helixhorned | 2012-03-17 04:34:54 -0700 (Sat, 17 Mar 2012) | 4 lines

"Promote" oob sectnum/statnum sprites to corruption level 4.

Also, always print at least level 5 corruptions (that is, have no instances
of completely silent corruptcheck).
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r2489 | helixhorned | 2012-03-17 04:34:32 -0700 (Sat, 17 Mar 2012) | 4 lines

Mapster32: sprite list consistency checker in corruptcheck.

This checks for about every possible type of sprite list corruption and
reports back with a corruption level 5 if one of the 14 validations fail.
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r2488 | helixhorned | 2012-03-17 04:34:09 -0700 (Sat, 17 Mar 2012) | 5 lines

Tweak Mapster32's sound index (F2).

- start scrolling from about half of the visible page
- PGUP/DGDN moves the cursor by 1/4 of the page
- code cleanup (we only need one displine[80], use clearkeys())
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