[Ohrrpgce] SVN: teeemcee/11227 Cleanup update_heroes walking animation code

[subversion at HamsterRepublic.com]

teeemcee
2019-08-11 20:38:04 -0700 (Sun, 11 Aug 2019)
294
Cleanup update_heroes walking animation code

The only change that gam.stillticks() is now also updated for empty hero slots,
which should have no consequence since it's only used while pathing. (I notice
that stillticks contains garbage until you start pathing: it isn't initialised
otherwise)
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U   wip/game.bas