{ .path="sound/tap3.ogg" }
};
+audio_clip audio_flips[] =
+{
+ { .path="sound/lf0.ogg" },
+ { .path="sound/lf1.ogg" },
+ { .path="sound/lf2.ogg" },
+ { .path="sound/lf3.ogg" },
+};
+
audio_clip audio_hits[] =
{
{ .path="sound/hit0.ogg" },
audio_clip audio_ui[] = {
{ .path = "sound/ui_click.ogg" },
{ .path = "sound/ui_ding.ogg" },
+ { .path = "sound/teleport.ogg" }
};
audio_clip audio_challenge[] = {
{ .path = "sound/objective_fail.ogg" }
};
-VG_STATIC void audio_init(void)
+struct air_synth_data {
+ f32 speed;
+
+ /* internal */
+ f32 t;
+ struct dsp_biquad lpf;
+ SDL_SpinLock sl;
+}
+static air_data;
+
+static void audio_air_synth_get_samples( void *_data, f32 *buf, u32 count ){
+ struct air_synth_data *data = _data;
+
+ SDL_AtomicLock( &data->sl );
+ f32 spd = data->speed;
+ SDL_AtomicUnlock( &data->sl );
+
+ f32 s0 = sinf(data->t*2.0f),
+ s1 = sinf(data->t*0.43f),
+ s2 = sinf(data->t*1.333f),
+ sm = vg_clampf( data->speed / 45.0f, 0, 1 ),
+ ft = (s0*s1*s2)*0.5f+0.5f,
+ f = vg_lerpf( 200.0f, 1200.0f, sm*0.7f + ft*0.3f ),
+ vol = 0.25f * sm;
+
+ dsp_init_biquad_butterworth_lpf( &data->lpf, f );
+
+ for( u32 i=0; i<count; i ++ ){
+ f32 v = (vg_randf64(&vg_dsp.rand) * 2.0f - 1.0f) * vol;
+ v = dsp_biquad_process( &data->lpf, v );
+
+ buf[i*2+0] = v;
+ buf[i*2+1] = v;
+ }
+
+ data->t += (f32)(count)/44100.0f;
+};
+
+static audio_clip air_synth = {
+ .flags = k_audio_format_gen,
+ .size = 0,
+ .func = audio_air_synth_get_samples,
+ .data = &air_data
+};
+
+static void audio_init(void)
{
audio_clip_loadn( audio_board, vg_list_size(audio_board), NULL );
audio_clip_loadn( audio_taps, vg_list_size(audio_taps), NULL );
+ audio_clip_loadn( audio_flips, vg_list_size(audio_flips), NULL );
audio_clip_loadn( audio_hits, vg_list_size(audio_hits), NULL );
audio_clip_loadn( audio_ambience, vg_list_size(audio_ambience), NULL );
audio_clip_loadn( &audio_splash, 1, NULL );
audio_lock();
audio_set_lfo_wave( 0, k_lfo_polynomial_bipolar, 80.0f );
audio_set_lfo_frequency( 0, 20.0f );
+
+ skaterift.aud_air = audio_get_first_idle_channel();
+ if( skaterift.aud_air )
+ audio_channel_init( skaterift.aud_air, &air_synth, 0 );
+
audio_unlock();
}
-VG_STATIC void audio_free(void)
+static void audio_free(void)
{
/* TODO! */
vg_warn( "UNIMPLEMENTED: audio_free()\n" );
k_audio_sprite_type_water
};
-VG_STATIC void audio_ambient_sprite_play( v3f co, audio_clip *clip )
+static void audio_ambient_sprite_play( v3f co, audio_clip *clip )
{
audio_lock();
u16 group_id = 0xfff0;
audio_unlock();
}
-VG_STATIC
+static
enum audio_sprite_type world_audio_sample_sprite_random(v3f origin, v3f output);
-VG_STATIC void audio_ambient_sprites_update( world_instance *world, v3f co )
+static void audio_ambient_sprites_update( world_instance *world, v3f co )
{
static float accum = 0.0f;
accum += vg.time_delta;
if( sprite_type != k_audio_sprite_type_none ){
if( sprite_type == k_audio_sprite_type_grass ){
- audio_ambient_sprite_play( sprite_pos, &audio_grass[vg_randu32()%4] );
+ audio_ambient_sprite_play( sprite_pos,
+ &audio_grass[vg_randu32(&vg.rand)%4] );
}
else if( sprite_type == k_audio_sprite_type_water ){
if( world->water.enabled ){
audio_ambient_sprite_play( sprite_pos,
- &audio_water[vg_randu32()%6] );
+ &audio_water[vg_randu32(&vg.rand)%6] );
}
}
}