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/* macstart.c: Macintosh-specific code for Glulxe.
*/
#include "glk.h"
#include "gi_dispa.h"
#include "gi_blorb.h"
#include "glulxe.h"
#include "macglk_startup.h" /* This comes with the MacGlk library. */
static OSType gamefile_types[2] = {'UlxG', 'IFRS'};
extern strid_t gamefile; /* This is defined in glulxe.h. */
extern glui32 gamefile_start, gamefile_len; /* Ditto. */
extern char *init_err, *init_err2;
static Boolean startup_when_selected(FSSpec *file, OSType filetype);
static Boolean startup_when_builtin(void);
Boolean macglk_startup_code(macglk_startup_t *data)
{
giblorb_err_t err;
data->app_creator = 'gUlx';
data->startup_model = macglk_model_ChooseOrBuiltIn;
data->gamefile_types = gamefile_types;
data->num_gamefile_types = 2;
data->savefile_type = 'IFZS';
data->datafile_type = 'UlxD';
data->gamefile = &gamefile;
data->when_selected = &startup_when_selected;
data->when_builtin = &startup_when_builtin;
return TRUE;
}
static Boolean startup_when_selected(FSSpec *file, OSType filetype)
{
if (filetype == 'UlxG') {
return locate_gamefile(FALSE);
}
else if (filetype == 'IFRS') {
return locate_gamefile(TRUE);
}
else {
init_err = "This is neither a Glulx game file nor a Blorb file which contains one.";
return FALSE;
}
}
static Boolean startup_when_builtin()
{
unsigned char buf[12];
int res;
glk_stream_set_position(gamefile, 0, seekmode_Start);
res = glk_get_buffer_stream(gamefile, (char *)buf, 12);
if (!res) {
init_err = "The data in this stand-alone game is too short to read.";
return FALSE;
}
if (buf[0] == 'G' && buf[1] == 'l' && buf[2] == 'u' && buf[3] == 'l') {
return locate_gamefile(FALSE);
}
else if (buf[0] == 'F' && buf[1] == 'O' && buf[2] == 'R' && buf[3] == 'M'
&& buf[8] == 'I' && buf[9] == 'F' && buf[10] == 'R' && buf[11] == 'S') {
return locate_gamefile(TRUE);
}
else {
init_err = "This is neither a Glulx game file nor a Blorb file which contains one.";
return FALSE;
}
}
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