Introduces wrappers around memory allocation functions in `memory.h`
that should be used instead of the standard C ones.
These never return NULL and, with the exception of `mem_realloc()`,
zero-initialize the allocated memory like `calloc()` does.
All allocations made with the memory.h API must be deallocated with
`mem_free()`. Although standard `free()` will work on some platforms,
it's not portable (currently it won't work on Windows). Likewise,
`mem_free()` must not be used to free foreign allocations.
The standard C allocation functions are now diagnosed as deprecated.
They are, however, available with the `libc_` prefix in case interfacing
with foreign APIs is required. So far they are only used to implement
`memory.h`.
Perhaps the most important change is the introduction of the `ALLOC()`,
`ALLOC_ARRAY()`, and `ALLOC_FLEX()` macros. They take a type as a
parameter, and allocate enough memory with the correct alignment for
that type. That includes overaligned types as well. In most
circumstances you should prefer to use these macros. See the `memory.h`
header for some usage examples.
The goal of this change is mainly to clean up Taisei's codebase and
improve its console output. I've been frustrated by files littered with
inconsistent printf/fprintf/warnx/errx calls for a long time, and now I
actually did something about it.
All the above functions are now considered deprecated and result in a
compile-time warning when used. Instead, the following macros should be
used:
log_debug(format, ...)
log_info(format, ...)
log_warn(format, ...)
log_err(format, ...)
As you can see, all of them have the same printf-like interface. But
they have different functionality and purpose:
log_debug is intended for very verbose and specific information. It
does nothing in release builds, much like assert(), so don't use
expressions with side-effects in its arguments.
log_info is for various status updates that are expected during
normal operation of the program.
log_warn is for non-critical failures or other things that may be
worth investigating, but don't inherently render the program
non-functional.
log_err is for when the only choice is to give up. Like errx, it
also terminates the program. Unlike errx, it actually calls abort(),
which means the cleanup functions are not ran -- but on the other
hand, you get a debuggable backtrace. However, if you're trying to
catch programming errors, consider using assert() instead.
All of them produce output that contains a timestamp, the log level
identifier, the calling function's name, and the formatted message.
The newline at the end of the format string is not required -- no, it is
actually *prohibited*. The logging system will take care of the line
breaks by itself, don't litter the code with that shit.
Internally, the logging system is based on the SDL_RWops abstraction,
and may have multiple, configurable destinations. This makes it easily
extensible. Currently, log_debug and log_info are set to write to
stdout, log_warn and log_err to stderr, and all of them also to the file
log.txt in the Taisei config directory.
Consequently, the nasty freopen hacks we used to make Taisei write to
log files on Windows are no longer needed -- which is a very good thing,
considering they probably would break if the configdir path contains
UTF-8 characters. SDL_RWFromFile does not suffer this limitation.
As an added bonus, it's also thread-safe.
Note about printf and fprintf: in very few cases, the logging system is
not a good substitute for these functions. That is, when you care about
writing exactly to stdout/stderr and about exactly how the output looks.
However, I insist on keeping the deprecation warnings on them to not
tempt anyone to use them for logging/debugging out of habit and/or
laziness.
For this reason, I've added a tsfprintf function to util.c. It is
functionally identical to fprintf, except it returns void. Yes, the name
is deliberately ugly. Avoid using it if possible, but if you must, only
use it to write to stdout or stderr. Do not write to actual files with
it, use SDL_RWops.
added some kind of reference system (see list.h) to ensure particles/projectiles/enemies storing pointers to each other that they will not access a borked address.
After this short break, I have to announce that this project is no longer called openth. The name was stereotypical and conflicted with Open Theme Hospital. Thus, gentlemen, we are now working on Seiyou (西洋). Thanks to lachs0r for this wonderful suggestion.
Also the lincense has changed. Farewell, gnutardedness, hello MIT. I feel somehow relieved now after freeing the project of nearly one thousand lines.
I built some font support (new dependency: SDL_ttf). The Biolinum font of the Libertine project was included as the new ingame font.
Shot at fairies and you will get power. The system is pretty dumb currently, i guess i'll improve it somwhen. If you get a power level >= 2 you get a better shot. anyway, just testing. the player projectiles are somewhat uncomfortable to look at. to do.
yay. look, i cut some of that annoying list code repetitions you always have with linked lists in C. let's just pretend C had templates, put some void-pointers in, add the necessary (void *) casts to show that you are really serious about this and wazaah, you created another funny piece of (C++)--
