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(svn r17238) -Codechange: Clean up CheckExternalFiles a bit and improve the error message it 

outputs. This makes the function return faster in the common case when all
files are in order, by not doing another set of MD5 checks.
This commit is contained in:
matthijs 2009-08-20 15:37:24 +00:00
parent 330c8d6a57
commit edcaf8aa3a
1 changed files with 22 additions and 7 deletions
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29
src/gfxinit.cpp
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@ -100,21 +100,36 @@ void CheckExternalFiles()
DEBUG(grf, 1, "Using the %s base graphics set with the %s palette", used_set->name, _use_palette == PAL_DOS ? "DOS" : "Windows");
static const size_t ERROR_MESSAGE_LENGTH = 128;
char error_msg[ERROR_MESSAGE_LENGTH * (MAX_GFT + 1)];
static const size_t ERROR_MESSAGE_LENGTH = 256;
static const size_t MISSING_FILE_MESSAGE_LENGTH = 128;
/* Allocate for a message for each missing file and for one error
* message per set.
*/
char error_msg[MISSING_FILE_MESSAGE_LENGTH * (GraphicsSet::NUM_FILES + SoundsSet::NUM_FILES) + 2 * ERROR_MESSAGE_LENGTH];
error_msg[0] = '\0';
char *add_pos = error_msg;
const char *last = lastof(error_msg);
for (uint i = 0; i < MAX_GFT; i++) {
if (!used_set->files[i].CheckMD5()) {
add_pos += seprintf(add_pos, last, "Your '%s' file is corrupted or missing! %s\n", used_set->files[i].filename, used_set->files[i].missing_warning);
if (used_set->GetNumMissing() != 0) {
/* Not all files were loaded succesfully, see which ones */
add_pos += seprintf(add_pos, last, "Trying to load graphics set '%s', but it is incomplete. The game will probably not run correctly until you properly install this set or select another one.\n\nThe following files are corrupted or missing:\n", used_set->name);
for (uint i = 0; i < GraphicsSet::NUM_FILES; i++) {
if (!used_set->files[i].CheckMD5()) {
add_pos += seprintf(add_pos, last, "\t%s (%s)\n", used_set->files[i].filename, used_set->files[i].missing_warning);
}
}
add_pos += seprintf(add_pos, last, "\n");
}
const SoundsSet *sounds_set = BaseSounds::GetUsedSet();
if (!sounds_set->files->CheckMD5()) {
add_pos += seprintf(add_pos, last, "Your '%s' file is corrupted or missing! %s\n", sounds_set->files->filename, sounds_set->files->missing_warning);
if (sounds_set->GetNumMissing() != 0) {
add_pos += seprintf(add_pos, last, "Trying to load sound set '%s', but it is incomplete. The game will probably not run correctly until you properly install this set or select another one.\n\nThe following files are corrupted or missing:\n", sounds_set->name);
assert_compile(SoundsSet::NUM_FILES == 1);
/* No need to loop each file, as long as there is only a single
* sound file. */
add_pos += seprintf(add_pos, last, "\t%s (%s)\n", sounds_set->files->filename, sounds_set->files->missing_warning);
}
if (add_pos != error_msg) ShowInfoF("%s", error_msg);