Classic renditions of Snake initially place an apple at a random
position, then spawn it anew if and only if it has been eaten by the
snake. M-x snake behaves differently, it does spawn apples in regular
time intervals at former positions of the snake's tail. To put it
bluntly, this makes it look as if the snake is leaking apples.
The attached patch introduces a new function, `snake-set-dot` which is
called at game initialization and upon collision with an apple. The
code responsible for placing apples in periodic intervals got snipped
out, together with the now unnecessary `snake-cycle` variable
responsible for tracking at which position the apple emission cycle is.
In GNU Emacs 24.5.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.16.2)
of 2015-04-20 on
bitzer.hoetzel.infoWindowing system distributor `The X.Org Foundation', version 11.0.11702000
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Memory information:
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snake.patch