zcurses version of tetris

zcurses version of tetris

[Mikael Magnusson]

Hi,

I noticed we don't ship any contrib and/or example scripts using the
zcurses module, and also that the builtin tetris is sort of boring, so
I figured I'd port it to curses. It works pretty well, but I noticed
two problems with the zcurses module in the process:
1. the HAVE_USE_DEFAULT_COLORS define seems to never be defined?
2a. resizing the window causes 'zcurses input' to wait forever for a
key, even with a timeout defined.
2b. resizing the window doesn't cause an event while running the
program, but if i resize before starting(?) i get an event RESIZE on
my first input call.

Here's the current version if anyone wants to take a look,
http://mika.l3ib.org/code/zsh-functions/tetriscurses
and in case i'm fiddling around with it, the version when I sent this
mail, http://mika.l3ib.org/code/tetriscurses-1

-- 
Mikael Magnusson

Re: zcurses version of tetris

[Bart Schaefer]

On Jul 16,  3:22pm, Mikael Magnusson wrote:
}
} 2a. resizing the window causes 'zcurses input' to wait forever for a
} key, even with a timeout defined.

This probably has something to do with the special-casing around wgetch()
for signals handled by the "trap" command.  See the big comment in
Src/Modules/curses.c lines 1073-1103.

It may be problematic to mix curses with the generic signal handling in
the main shell.  We may need to swap in a SIGWINCH handler wrapper while
the curses UI is active, and restore the main handler when leaving it.

} 2b. resizing the window doesn't cause an event while running the
} program, but if i resize before starting(?) i get an event RESIZE on
} my first input call.

There's probably some state that needs to be cleared on entry to
zccmd_input() so that curses doesn't see something left over from the
previous signal.  Unfortunately I don't know what that would be.