world.h

   1 /*
   2  * Copyright (C) 2021-2022 Mt.ZERO Software, Harry Godden - All Rights Reserved
   3  */
   4
   5 #include "common.h"
   6
   7 static int ray_world( v3f pos, v3f dir, ray_hit *hit );
   8
   9 #ifndef WORLD_H
  10 #define WORLD_H
  11
  12 #include "vg/vg_loader.h"
  13
  14 #include "network.h"
  15 #include "network_msg.h"
  16 #include "scene.h"
  17 #include "render.h"
  18 #include "rigidbody.h"
  19 #include "bvh.h"
  20 #include "model.h"
  21
  22 #include "traffic.h" /*TODO: -> world_traffic.h */
  23
  24 #include "shaders/terrain.h"
  25 #include "shaders/sky.h"
  26 #include "shaders/planeinf.h"
  27 #include "shaders/standard.h"
  28 #include "shaders/vblend.h"
  29 #include "shaders/gpos.h"
  30 #include "shaders/fscolour.h"
  31 #include "shaders/alphatest.h"
  32
  33 enum { k_max_ui_segments = 8 };
  34 enum { k_max_ui_splits_per_segment = 16 };
  35
  36 enum { k_max_ui_elements = k_max_ui_segments*k_max_ui_splits_per_segment };
  37 enum { k_max_element_verts = 10 };
  38 enum { k_max_element_indices = 20 };
  39
  40 enum { k_route_ui_max_verts = k_max_ui_elements*k_max_element_verts };
  41 enum { k_route_ui_max_indices = k_max_ui_elements*k_max_element_indices };
  42
  43 static struct gworld
  44 {
  45    /* gameplay */
  46    struct respawn_point
  47    {
  48       v3f co;
  49       v4f q;
  50       char name[32];
  51    }
  52    spawns[32];
  53    u32 spawn_count;
  54
  55    struct world_audio_thing
  56    {
  57       v3f pos;
  58       float volume;
  59       u32 flags;
  60
  61       audio_player player;
  62       audio_clip temp_embedded_clip;
  63    }
  64    * audio_things;
  65
  66    u32 audio_things_count,
  67        audio_things_cap;
  68
  69    struct achievement_zone
  70    {
  71       m4x3f transform, inv_transform;
  72       char name[32];
  73       int triggered;
  74
  75       union
  76       {
  77          mdl_node *ptarget_delegated;
  78          struct world_audio_thing *ptarget;
  79       };
  80    }
  81    * achievement_zones;
  82
  83    u32 achievement_zones_count,
  84        achievement_zones_cap;
  85
  86    struct subworld_sfd
  87    {
  88       scene mesh;
  89       mdl_submesh *sm_module, *sm_card;
  90       glmesh temp;
  91
  92       struct sfd_instance
  93       {
  94          float *buffer;
  95
  96          u32 w,h;
  97       }
  98       tester;
  99    }
 100    sfd;
 101
 102    /* Paths */
 103    traffic_node traffic[128];
 104    u32 traffic_count;
 105
 106 #if 0
 107    traffic_driver van_man[6];
 108 #endif
 109
 110    double sky_time, sky_rate, sky_target_rate;
 111
 112    /* Physics */
 113
 114    /* Rendering & geometry */
 115    scene geo, foliage;
 116    rigidbody rb_geo;
 117
 118    /* TODO Maybe make this less hardcoded */
 119    mdl_submesh sm_geo_std_oob, sm_geo_std, sm_geo_vb,
 120                sm_foliage_main, sm_foliage_alphatest,
 121                sm_graffiti, sm_subworld, sm_terrain;
 122
 123    glmesh skybox, skydome;
 124    mdl_submesh dome_upper, dome_lower;
 125
 126    glmesh cars;
 127    mdl_submesh car_holden;
 128
 129    /* Load time */
 130
 131    struct instance_cache
 132    {
 133       mdl_header *mdl;
 134       u32 pstr_file;
 135    }
 136    * instance_cache;
 137    u32 instance_cache_count,
 138        instance_cache_cap;
 139
 140    v3f render_gate_pos;
 141    int active_route_board;
 142 }
 143 world ;
 144
 145 typedef struct teleport_gate teleport_gate;
 146 struct teleport_gate
 147 {
 148    v3f co[2];
 149    v4f q[2];
 150    v2f dims;
 151
 152    m4x3f to_world, recv_to_world, transport;
 153 };
 154
 155 struct subworld_routes
 156 {
 157    struct route_node
 158    {
 159       v3f co, right, up, h;
 160       u32 next[2];
 161
 162       u32 special_type, special_id, current_refs, ref_count;
 163       u32 route_ids[4];    /* Gates can be linked into up to four routes */
 164    }
 165    *nodes;
 166
 167    u32 node_count,
 168        node_cap;
 169
 170    struct route
 171    {
 172       u32 track_id;
 173       v4f colour;
 174
 175       u32 start;
 176       mdl_submesh sm;
 177
 178       int active;
 179       float factive;
 180
 181       double best_lap, latest_pass; /* Session */
 182
 183       struct
 184       {
 185          GLuint vao, vbo, ebo;
 186
 187          u32  indices_head;
 188          u32  vertex_head;
 189
 190          float last_notch;
 191
 192          struct route_ui_segment
 193          {
 194             float length;
 195             u32 vertex_start, vertex_count,
 196                 index_start, index_count, notches;
 197          }
 198          segments[k_max_ui_segments];
 199
 200          u32 segment_start, segment_count, fade_start, fade_count;
 201          double fade_timer_start;
 202          float xpos;
 203       }
 204       ui;
 205
 206       m4x3f scoreboard_transform;
 207    }
 208    *routes;
 209
 210    double time, rewind_from, rewind_to, last_use;
 211
 212    u32 route_count,
 213        route_cap;
 214
 215    struct route_gate
 216    {
 217       teleport_gate gate;
 218       u32 node_id;
 219
 220       struct route_timing
 221       {
 222          u32 version; /* Incremented on every teleport */
 223          double time;
 224       }
 225       timing;
 226    }
 227    *gates;
 228
 229    struct route_collector
 230    {
 231       struct route_timing timing;
 232    }
 233    *collectors;
 234
 235    u32 gate_count,
 236        gate_cap,
 237        collector_count,
 238        collector_cap;
 239
 240    u32 active_gate,
 241        current_run_version;
 242
 243    scene scene_lines;
 244 }
 245 static world_routes;
 246
 247
 248 /*
 249  * API
 250  */
 251
 252 static int ray_hit_is_ramp( ray_hit *hit );
 253 static int ray_hit_is_terrain( ray_hit *hit );
 254 static void ray_world_get_tri( ray_hit *hit, v3f tri[3] );
 255 static int ray_world( v3f pos, v3f dir, ray_hit *hit );
 256
 257 /*
 258  * Submodules
 259  */
 260
 261 #include "world_routes.h"
 262 #include "world_sfd.h"
 263 #include "world_render.h"
 264 #include "world_water.h"
 265 #include "world_gen.h"
 266 #include "world_gate.h"
 267
 268 /*
 269  * -----------------------------------------------------------------------------
 270  *                                    Events
 271  * -----------------------------------------------------------------------------
 272  */
 273
 274 static void world_init(void)
 275 {
 276    world.sky_rate = 1.0;
 277    world.sky_target_rate = 1.0;
 278
 279    shader_terrain_register();
 280    shader_sky_register();
 281    shader_planeinf_register();
 282    shader_gpos_register();
 283    shader_fscolour_register();
 284    shader_alphatest_register();
 285
 286    vg_info( "Loading world resources\n" );
 287
 288    VG_REQUIRED_ASSET( mdl_header*, mcars, mdl_load, "models/rs_cars.mdl" );
 289    VG_REQUIRED_ASSET( mdl_header*, msky,  mdl_load, "models/rs_skydome.mdl" );
 290
 291    mdl_node *nholden = mdl_node_from_name( mcars, "holden" );
 292    world.car_holden = *mdl_node_submesh( mcars, nholden, 0 );
 293
 294    mdl_node *nlower = mdl_node_from_name( msky, "dome_lower" ),
 295             *nupper = mdl_node_from_name( msky, "dome_upper" );
 296
 297    world.dome_lower = *mdl_node_submesh( msky, nlower, 0 );
 298    world.dome_upper = *mdl_node_submesh( msky, nupper, 0 );
 299
 300    vg_acquire_thread_sync();
 301    {
 302       mdl_unpack_glmesh( mcars, &world.cars );
 303       mdl_unpack_glmesh( msky, &world.skydome );
 304    }
 305    vg_release_thread_sync();
 306
 307    vg_free(mcars);
 308    vg_free(msky);
 309
 310    /* Other systems */
 311    vg_info( "Loading other world systems\n" );
 312
 313    vg_loader_highwater( world_render_init, world_render_free, NULL );
 314    vg_loader_highwater( world_sfd_init, world_sfd_free, NULL );
 315    vg_loader_highwater( world_water_init, world_water_free, NULL );
 316    vg_loader_highwater( world_gates_init, world_gates_free, NULL );
 317    vg_loader_highwater( world_routes_init, world_routes_free, NULL );
 318 }
 319
 320 static void world_free( void *_ )
 321 {
 322    mesh_free( &world.cars );
 323    mesh_free( &world.skydome );
 324    vg_free( world.achievement_zones );
 325
 326    /* FIXME: This fucks with the audio player. Use-after-free */
 327 #if 0
 328    vg_free( world.audio_things );
 329 #endif
 330 }
 331
 332 static void world_update( v3f pos )
 333 {
 334    world.sky_time += world.sky_rate * vg.time_delta;
 335    world.sky_rate = vg_lerp( world.sky_rate, world.sky_target_rate,
 336                                  vg.time_delta * 5.0 );
 337
 338    world_routes_update();
 339 #if 0
 340    world_routes_debug();
 341 #endif
 342
 343    int closest = 0;
 344    float min_dist = INFINITY;
 345
 346    for( int i=0; i<world_routes.route_count; i++ )
 347    {
 348       float d = v3_dist2( world_routes.routes[i].scoreboard_transform[3], pos );
 349
 350       if( d < min_dist )
 351       {
 352          min_dist = d;
 353          closest = i;
 354       }
 355    }
 356
 357    if( (world.active_route_board != closest) || network_scores_updated )
 358    {
 359       network_scores_updated = 0;
 360       world.active_route_board = closest;
 361       struct subworld_sfd *sfd = &world.sfd;
 362
 363       struct route *route = &world_routes.routes[closest];
 364
 365       u32 id = route->track_id;
 366
 367       if( id != 0xffffffff )
 368       {
 369          struct netmsg_board *local_board = &scoreboard_client_data.boards[id];
 370
 371          for( int i=0; i<13; i++ )
 372          {
 373             sfd_encode( &sfd->tester, i, &local_board->data[27*i] );
 374          }
 375       }
 376    }
 377
 378    static int in_zone = 0;
 379
 380    int in_zone_this_time = 0;
 381
 382    for( int i=0; i<world.achievement_zones_count; i++ )
 383    {
 384       struct achievement_zone *zone = &world.achievement_zones[i];
 385
 386       v3f local;
 387       m4x3_mulv( zone->inv_transform, pos, local );
 388
 389       if( (fabsf(local[0]) <= 1.0f) &&
 390           (fabsf(local[1]) <= 1.0f) &&
 391           (fabsf(local[2]) <= 1.0f) )
 392       {
 393          in_zone_this_time = 1;
 394
 395          if( !in_zone && zone->ptarget )
 396          {
 397             audio_lock();
 398             audio_player_playclip( &zone->ptarget->player,
 399                                    &zone->ptarget->temp_embedded_clip );
 400             audio_unlock();
 401          }
 402
 403          if( !zone->triggered )
 404          {
 405             steam_set_achievement( zone->name );
 406             steam_store_achievements();
 407          }
 408
 409          zone->triggered = 1;
 410       }
 411
 412       vg_line_boxf_transformed( zone->transform, (boxf){{-1.0f,-1.0f,-1.0f},
 413                                                         { 1.0f, 1.0f, 1.0f}},
 414                                                         0xff00ff00 );
 415    }
 416
 417    in_zone = in_zone_this_time;
 418
 419    sfd_update( &world.sfd.tester );
 420 }
 421
 422 /*
 423  * -----------------------------------------------------------------------------
 424  *                              API implementation
 425  * -----------------------------------------------------------------------------
 426  */
 427
 428 static void ray_world_get_tri( ray_hit *hit, v3f tri[3] )
 429 {
 430    for( int i=0; i<3; i++ )
 431       v3_copy( world.geo.verts[ hit->tri[i] ].co, tri[i] );
 432 }
 433
 434 static int ray_world( v3f pos, v3f dir, ray_hit *hit )
 435 {
 436    return scene_raycast( &world.geo, pos, dir, hit );
 437 }
 438
 439 static int ray_hit_is_terrain( ray_hit *hit )
 440 {
 441    u32 valid_start = 0,
 442        valid_end   = world.sm_terrain.vertex_count;
 443
 444    return (hit->tri[0] >= valid_start) &&
 445           (hit->tri[0]  < valid_end);
 446 }
 447
 448 static int ray_hit_is_ramp( ray_hit *hit )
 449 {
 450    u32 valid_start = world.sm_geo_std.vertex_start,
 451        valid_end   = world.sm_geo_vb.vertex_start;
 452
 453    return (hit->tri[0] >= valid_start) &&
 454           (hit->tri[0]  < valid_end);
 455 }
 456
 457 #endif /* WORLD_H */