int astdelux_sh_start(const struct MachineSound *msound)
{
/* initialize explosion volume lookup table */
explosion_init();
channel = stream_init("Custom", 50, Machine->sample_rate, 0, astdelux_sound_update);
if( channel == -1 )
return 1;
return 0;
}
int asteroid_sh_start(const struct MachineSound *msound)
{
int i;
discharge = (INT16 *)malloc(32768 * sizeof(INT16));
if( !discharge )
return 1;
for( i = 0; i < 0x8000; i++ )
discharge[0x7fff-i] = (INT16) (0x7fff/exp(1.0*i/4096));
/* initialize explosion volume lookup table */
explosion_init();
channel = stream_init("Custom", 100, Machine->sample_rate, 0, asteroid_sound_update);
if( channel == -1 )
return 1;
return 0;
}
static bool
init(void)
{
if(!al_init()) {
fprintf(stderr, "failed to initialize allegro.\n");
return false;
}
if(!al_install_keyboard()) {
fprintf(stderr, "failed to initialize keyboard.\n");
return false;
}
if(!al_init_image_addon()) {
fprintf(stderr, "failed to initialize image system.\n");
return false;
}
al_init_font_addon();
if(!al_init_ttf_addon()) {
fprintf(stderr, "failed to initialize ttf system.\n");
return false;
}
/* sound */
if(!al_install_audio()) {
fprintf(stderr, "failed to initialize audio system.\n");
return false;
}
if(!al_init_acodec_addon()) {
fprintf(stderr, "failed to initialize audio codecs.\n");
return false;
}
if(!al_reserve_samples(10)) {
fprintf(stderr, "failed to reserve audio samples.\n");
return false;
}
/* fonts */
asteroids.small_font = al_load_ttf_font("data/vectorb.ttf", 12, 0);
asteroids.large_font = al_load_ttf_font("data/vectorb.ttf", 24, 0);
/* lives sprite */
asteroids.lives_sprite = al_load_bitmap("data/sprites/ship/ship.png");
if(!asteroids.lives_sprite) {
fprintf(stderr, "failed to load lives sprite.\n");
return false;
}
/* sprite preloading */
if(!level_init())
return false;
if(!ship_init())
return false;
if(!missile_init())
return false;
if(!saucer_init())
return false;
if(!asteroid_init())
return false;
if(!explosion_init())
return false;
asteroids.timer = al_create_timer(1.0 / FPS);
if(!asteroids.timer) {
fprintf(stderr, "failed to create timer.\n");
return false;
}
asteroids.event_queue = al_create_event_queue();
if(!asteroids.event_queue) {
fprintf(stderr, "failed to create event queue.\n");
return false;
}
if(FULLSCREEN)
al_set_new_display_flags(ALLEGRO_FULLSCREEN);
al_set_new_display_option(ALLEGRO_SAMPLE_BUFFERS, 1, ALLEGRO_SUGGEST);
al_set_new_display_option(ALLEGRO_SAMPLES, 8, ALLEGRO_SUGGEST);
asteroids.display = al_create_display(SCREEN_W, SCREEN_H);
if(!asteroids.display) {
fprintf(stderr, "failed to create display.\n");
return false;
}
/* TODO: show on mouse movement */
al_hide_mouse_cursor(asteroids.display);
al_register_event_source(asteroids.event_queue, al_get_display_event_source(asteroids.display));
al_register_event_source(asteroids.event_queue, al_get_timer_event_source(asteroids.timer));
al_register_event_source(asteroids.event_queue, al_get_keyboard_event_source());
return true;
}
