audio.h

   1 /*
   2  * Copyright (C) 2021-2022 Mt.ZERO Software, Harry Godden - All Rights Reserved
   3  */
   4
   5 #include "common.h"
   6
   7 #ifndef AUDIO_H
   8 #define AUDIO_H
   9
  10 #include "world.h"
  11
  12 VG_STATIC float audio_occlusion_current = 0.0f,
  13              k_audio_occlusion_rate  = 1.0f;
  14
  15 VG_STATIC int k_audio_debug_soundscape = 0;
  16
  17 audio_clip audio_board[] =
  18 {
  19    { .path="sound/skate_hpf.ogg" },
  20    { .path="sound/wheel.ogg" },
  21    { .path="sound/slide.ogg" },
  22    { .path="sound/grind_enter.ogg" },
  23    { .path="sound/grind_exit.ogg" },
  24    { .path="sound/grind_loop.ogg" },
  25    { .path="sound/woodslide.ogg" },
  26    { .path="sound/metalscrape.ogg" },
  27    { .path="sound/slidetap.ogg" }
  28 };
  29
  30 audio_clip audio_taps[] =
  31 {
  32    { .path="sound/tap0.ogg" },
  33    { .path="sound/tap1.ogg" },
  34    { .path="sound/tap2.ogg" },
  35    { .path="sound/tap3.ogg" }
  36 };
  37
  38 audio_clip audio_hits[] =
  39 {
  40    { .path="sound/hit0.ogg" },
  41    { .path="sound/hit1.ogg" },
  42    { .path="sound/hit2.ogg" },
  43    { .path="sound/hit3.ogg" },
  44    { .path="sound/hit4.ogg" }
  45 };
  46
  47 audio_clip audio_splash =
  48 { .path = "sound/splash.ogg" };
  49
  50 audio_clip audio_jumps[] = {
  51    { .path = "sound/jump0.ogg" },
  52    { .path = "sound/jump1.ogg" },
  53 };
  54
  55 audio_clip audio_footsteps[] = {
  56  {.path = "sound/step_concrete0.ogg" },
  57  {.path = "sound/step_concrete1.ogg" },
  58  {.path = "sound/step_concrete2.ogg" },
  59  {.path = "sound/step_concrete3.ogg" }
  60 };
  61
  62 audio_clip audio_footsteps_grass[] = {
  63  {.path = "sound/step_bush0.ogg" },
  64  {.path = "sound/step_bush1.ogg" },
  65  {.path = "sound/step_bush2.ogg" },
  66  {.path = "sound/step_bush3.ogg" },
  67  {.path = "sound/step_bush4.ogg" },
  68  {.path = "sound/step_bush5.ogg" }
  69 };
  70
  71 audio_clip audio_footsteps_wood[] = {
  72  {.path = "sound/step_wood0.ogg" },
  73  {.path = "sound/step_wood1.ogg" },
  74  {.path = "sound/step_wood2.ogg" },
  75  {.path = "sound/step_wood3.ogg" },
  76  {.path = "sound/step_wood4.ogg" },
  77  {.path = "sound/step_wood5.ogg" }
  78 };
  79
  80 audio_clip audio_lands[] = {
  81    { .path = "sound/land0.ogg" },
  82    { .path = "sound/land1.ogg" },
  83    { .path = "sound/land2.ogg" },
  84    { .path = "sound/landsk0.ogg" },
  85    { .path = "sound/landsk1.ogg" },
  86    { .path = "sound/onto.ogg" },
  87    { .path = "sound/outo.ogg" },
  88 };
  89
  90 audio_clip audio_water[] = {
  91    { .path = "sound/wave0.ogg" },
  92    { .path = "sound/wave1.ogg" },
  93    { .path = "sound/wave2.ogg" },
  94    { .path = "sound/wave3.ogg" },
  95    { .path = "sound/wave4.ogg" },
  96    { .path = "sound/wave5.ogg" }
  97 };
  98
  99 audio_clip audio_grass[] = {
 100    { .path = "sound/grass0.ogg" },
 101    { .path = "sound/grass1.ogg" },
 102    { .path = "sound/grass2.ogg" },
 103    { .path = "sound/grass3.ogg" },
 104 };
 105
 106 audio_clip audio_ambience[] =
 107 {
 108    { .path="sound/town_generic.ogg" }
 109 };
 110
 111 audio_clip audio_gate_pass = {
 112    .path = "sound/gate_pass.ogg"
 113 };
 114
 115 audio_clip audio_gate_lap = {
 116    .path = "sound/gate_lap.ogg"
 117 };
 118
 119 audio_clip audio_gate_ambient = {
 120 .path = "sound/gate_ambient.ogg"
 121 };
 122
 123 audio_clip audio_rewind[] = {
 124 { .path = "sound/rewind_start.ogg" },
 125 { .path = "sound/rewind_end_1.5.ogg" },
 126 { .path = "sound/rewind_end_2.5.ogg" },
 127 { .path = "sound/rewind_end_6.5.ogg" },
 128 { .path = "sound/rewind_clack.ogg" },
 129 };
 130
 131 audio_clip audio_ui[] = {
 132    { .path = "sound/ui_click.ogg" },
 133    { .path = "sound/ui_ding.ogg" },
 134 };
 135
 136 VG_STATIC void audio_init(void)
 137 {
 138    audio_clip_loadn( audio_board, vg_list_size(audio_board), NULL );
 139    audio_clip_loadn( audio_taps, vg_list_size(audio_taps), NULL );
 140    audio_clip_loadn( audio_hits, vg_list_size(audio_hits), NULL );
 141    audio_clip_loadn( audio_ambience, vg_list_size(audio_ambience), NULL );
 142    audio_clip_loadn( &audio_splash, 1, NULL );
 143    audio_clip_loadn( &audio_gate_pass, 1, NULL );
 144    audio_clip_loadn( &audio_gate_lap, 1, NULL );
 145    audio_clip_loadn( &audio_gate_ambient, 1, NULL );
 146
 147    audio_clip_loadn( audio_jumps, vg_list_size(audio_jumps), NULL );
 148    audio_clip_loadn( audio_lands, vg_list_size(audio_lands), NULL );
 149    audio_clip_loadn( audio_water, vg_list_size(audio_water), NULL );
 150    audio_clip_loadn( audio_grass, vg_list_size(audio_grass), NULL );
 151    audio_clip_loadn( audio_footsteps, vg_list_size(audio_footsteps), NULL );
 152    audio_clip_loadn( audio_footsteps_grass,
 153                      vg_list_size(audio_footsteps_grass), NULL );
 154    audio_clip_loadn( audio_footsteps_wood,
 155                      vg_list_size(audio_footsteps_wood), NULL );
 156    audio_clip_loadn( audio_rewind, vg_list_size(audio_rewind), NULL );
 157    audio_clip_loadn( audio_ui, vg_list_size(audio_ui), NULL );
 158
 159    vg_var_push( (struct vg_var){
 160       .name = "aud_debug_soundscape",
 161       .data = &k_audio_debug_soundscape,
 162       .data_type = k_var_dtype_i32,
 163       .opt_i32 = { .min=0, .max=1, .clamp=0 },
 164       .persistent = 1
 165    });
 166
 167    vg_var_push( (struct vg_var){
 168       .name = "aud_occlusion_rate",
 169       .data = &k_audio_occlusion_rate,
 170       .data_type = k_var_dtype_f32,
 171       .opt_f32 = { .clamp = 0 },
 172       .persistent = 1
 173    });
 174
 175    audio_lock();
 176    audio_set_lfo_wave( 0, k_lfo_polynomial_bipolar, 80.0f );
 177    audio_set_lfo_frequency( 0, 20.0f );
 178    audio_unlock();
 179 }
 180
 181 VG_STATIC void audio_free(void)
 182 {
 183    /* TODO! */
 184    vg_warn( "UNIMPLEMENTED: audio_free()\n" );
 185 }
 186
 187 enum audio_sprite_type
 188 {
 189    k_audio_sprite_type_none,
 190    k_audio_sprite_type_grass,
 191    k_audio_sprite_type_water
 192 };
 193
 194 /*
 195  * Trace out a random point, near the player to try and determine water areas
 196  */
 197 VG_STATIC enum audio_sprite_type audio_sample_sprite_random( v3f origin,
 198                                                              v3f output )
 199 {
 200    v3f chance = { (vg_randf()-0.5f) * 30.0f,
 201                   8.0f,
 202                   (vg_randf()-0.5f) * 30.0f };
 203
 204    v3f pos;
 205    v3_add( chance, origin, pos );
 206
 207    ray_hit contact;
 208    contact.dist = vg_minf( 16.0f, pos[1] );
 209
 210    world_instance *world = get_active_world();
 211
 212    if( ray_world( world, pos, (v3f){0.0f,-1.0f,0.0f}, &contact ) ){
 213       struct world_surface *mat = ray_hit_surface( world, &contact );
 214
 215       if( mat->info.surface_prop == k_surface_prop_grass){
 216          v3_copy( contact.pos, output );
 217          return k_audio_sprite_type_grass;
 218       }
 219       else{
 220 #if 0
 221          vg_line( pos, contact.pos, 0xff0000ff );
 222          vg_line_pt3( contact.pos, 0.3f, 0xff0000ff );
 223 #endif
 224          return k_audio_sprite_type_none;
 225       }
 226    }
 227
 228    output[0] = pos[0];
 229    output[1] = 0.0f;
 230    output[2] = pos[2];
 231
 232    float dist = fabsf(output[1] - origin[1]);
 233
 234    if( world->water.enabled && dist<=40.0f )
 235       return k_audio_sprite_type_water;
 236    else
 237       return k_audio_sprite_type_none;
 238 }
 239
 240 VG_STATIC void audio_ambient_sprite_play( v3f co, audio_clip *clip )
 241 {
 242    audio_lock();
 243    u32 channel_id = 31342352;
 244    audio_channel *ch = audio_get_group_idle_channel( channel_id, 4 );
 245
 246    if( ch ){
 247       audio_channel_init( ch, clip, AUDIO_FLAG_SPACIAL_3D );
 248       audio_channel_group( ch, channel_id );
 249       audio_channel_set_spacial( ch, co, 80.0f );
 250       audio_channel_edit_volume( ch, 1.0f, 1 );
 251       ch = audio_relinquish_channel( ch );
 252    }
 253    audio_unlock();
 254 }
 255
 256 VG_STATIC void audio_ambient_sprites_update( world_instance *world, v3f co )
 257 {
 258    static float accum = 0.0f;
 259    accum += vg.frame_delta;
 260
 261    if( accum > 0.1f )
 262       accum -= 0.1f;
 263    else return;
 264
 265    v3f sprite_pos;
 266    enum audio_sprite_type sprite_type =
 267       audio_sample_sprite_random( co, sprite_pos );
 268
 269    if( sprite_type != k_audio_sprite_type_none ){
 270       if( sprite_type == k_audio_sprite_type_grass ){
 271          audio_ambient_sprite_play( sprite_pos, &audio_grass[rand()%4] );
 272       }
 273       else if( sprite_type == k_audio_sprite_type_water ){
 274          if( world->water.enabled )
 275             audio_ambient_sprite_play( sprite_pos, &audio_water[rand()%6] );
 276       }
 277    }
 278 }
 279
 280 #endif /* AUDIO_H */