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Re: gamegrid.el and some games
From: |
Richard Stallman |
Subject: |
Re: gamegrid.el and some games |
Date: |
Mon, 16 Sep 2002 15:27:53 -0400 |
> * Use a PBM form of the same image. How hard is that? Does it have
> drawbacks?
You mean, if a package provides only XPM we should calculate a PBM/XBM
image from that XPM via manipulation of the data strings?
I was thinking that the programmer would supply the image in PBM
format. This could be in addition to XPM, or instead of XPM. How
hard is that?
It is a pity that Emacs does not provide any means to create and
change an image in the image cache directly. This could make this task
(and some others) much easier.
I guess so. It would be nice if all image formats (or at least more
of them) supported getting the image from Lisp data rather than from
a file. Does someone want to work on that?
> * Change gamegrid so that it can check for support for a specific
> bitmap type before deciding to use a bitmap of that type.
[...]
I am not sure. Depending on how it is done it could either introduce
incompatibilities to the former version of gamegrid or it could make
gamegrid's interface even less clear.
Incompatibilities with the former version of gamegrid are not terribly
important. Most of the programs that use gamegrid are included in Emacs.
We would change them too.
I doubt the interface will be much less clear.
I guess, instead of applying `find-image' we could introduce new
environment types for Emacsen compiled with and without support for
XPM. Then we could fix pong.el, tetris.el and snake.el to be aware of
that distinction. The keyword would then be 'glyph for an Emacs with
support for XPM (for the sake of compatibility) and 'xbm-glyph or
'simple-glyph or whatever for an Emacs that support nothing but the
image types not relying on external libraries.
That seems like a good method.
- Re: gamegrid.el and some games, (continued)
- Re: gamegrid.el and some games, Oliver Scholz, 2002/09/13
- Re: gamegrid.el and some games, Alex Schroeder, 2002/09/13
- Re: gamegrid.el and some games, Richard Stallman, 2002/09/14
- Re: gamegrid.el and some games, Oliver Scholz, 2002/09/16
- Re: gamegrid.el and some games, Luke A. Olbrish, 2002/09/19
- Re: gamegrid.el and some games, Richard Stallman, 2002/09/19
- Re: gamegrid.el and some games, Richard Stallman, 2002/09/14
- Re: gamegrid.el and some games, Oliver Scholz, 2002/09/16
- Re: gamegrid.el and some games, Richard Stallman, 2002/09/16
- Re: gamegrid.el and some games, Oliver Scholz, 2002/09/16
- Re: gamegrid.el and some games,
Richard Stallman <=
- Re: gamegrid.el and some games, alkibiades, 2002/09/16
- Re: gamegrid.el and some games, Richard Stallman, 2002/09/17
- Re: gamegrid.el and some games, Gerd Moellmann, 2002/09/17
- Re: gamegrid.el and some games, Oliver Scholz, 2002/09/18
- Re: gamegrid.el and some games, Oliver Scholz, 2002/09/18
- Re: gamegrid.el and some games, Eli Zaretskii, 2002/09/19
- Re: gamegrid.el and some games, Richard Stallman, 2002/09/19
- Re: gamegrid.el and some games, Miles Bader, 2002/09/19
- Re: gamegrid.el and some games, rms, 2002/09/20
- Re: gamegrid.el and some games, Oliver Scholz, 2002/09/20