world.h

   1 /*
   2  * Copyright (C) 2021-2022 Mt.ZERO Software, Harry Godden - All Rights Reserved
   3  */
   4
   5 #include "common.h"
   6
   7 VG_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 "shaders/terrain.h"
  23 #include "shaders/sky.h"
  24 #include "shaders/planeinf.h"
  25 #include "shaders/standard.h"
  26 #include "shaders/vblend.h"
  27 #include "shaders/gpos.h"
  28 #include "shaders/fscolour.h"
  29 #include "shaders/alphatest.h"
  30
  31 typedef struct teleport_gate teleport_gate;
  32
  33 enum { k_max_ui_segments = 8 };
  34
  35 enum { k_max_ui_elements = k_max_ui_segments };
  36 enum { k_max_element_verts = 10 };
  37 enum { k_max_element_indices = 20 };
  38
  39 enum { k_route_ui_max_verts = k_max_ui_elements*k_max_element_verts };
  40 enum { k_route_ui_max_indices = k_max_ui_elements*k_max_element_indices };
  41
  42 enum logic_type
  43 {
  44    k_logic_type_relay         = 1,
  45    k_logic_type_chance        = 2,
  46    k_logic_type_achievement   = 3
  47 };
  48
  49 VG_STATIC struct gworld
  50 {
  51    /*
  52     * Allocated as system memory
  53     * --------------------------------------------------------------------------
  54     */
  55
  56    /* rendering */
  57    glmesh skydome;
  58    mdl_submesh dome_upper, dome_lower;
  59
  60    glmesh mesh_gate_surface;
  61
  62    double sky_time, sky_rate, sky_target_rate;
  63
  64    /* water rendering */
  65    struct
  66    {
  67       struct framebuffer fbreflect, fbdepth;
  68
  69       boxf depthbounds;
  70       int depth_computed;
  71
  72       float height;
  73       int enabled;
  74       v4f plane;
  75    }
  76    water;
  77
  78    /* split flap display */
  79    struct
  80    {
  81       mdl_submesh *sm_module, *sm_card;
  82       glmesh mesh_base, mesh_display;
  83
  84       u32 w, h;
  85       float *buffer;
  86    }
  87    sfd;
  88
  89    /* timing bars, fixed maximum amount */
  90    struct route_ui_bar
  91    {
  92       GLuint vao, vbo, ebo;
  93
  94       u32  indices_head;
  95       u32  vertex_head;
  96
  97       float last_notch;
  98
  99       struct route_ui_segment
 100       {
 101          float length;
 102          u32 vertex_start, vertex_count,
 103              index_start, index_count, notches;
 104       }
 105       segments[k_max_ui_segments];
 106
 107       u32 segment_start, segment_count, fade_start, fade_count;
 108       double fade_timer_start;
 109       float xpos;
 110    }
 111    ui_bars[16];
 112
 113    v3f render_gate_pos;
 114    int active_route_board;
 115
 116    /*
 117     * Dynamically allocated when world_load is called.
 118     *
 119     *                  the following arrays index somewhere into this linear
 120     *                  allocator
 121     *
 122     * (world_gen.h)
 123     * --------------------------------------------------------------------------
 124     */
 125    void *dynamic_vgl;
 126
 127    /*
 128     * Main world .mdl
 129     */
 130    mdl_context *meta;
 131
 132    /*
 133     * Named safe places to respawn
 134     */
 135    struct respawn_point
 136    {
 137       v3f co;
 138       v4f q;
 139       const char *name;
 140    }
 141    * spawns;
 142    u32 spawn_count;
 143
 144    /*
 145     * Audio player entities
 146     */
 147    struct world_audio_thing
 148    {
 149       v3f pos;
 150       float volume;
 151       u32 flags;
 152
 153       audio_player player;
 154       audio_clip temp_embedded_clip;
 155    }
 156    * audio_things;
 157    u32 audio_things_count;
 158
 159    /*
 160     * Relays, random, etc
 161     */
 162    struct logic_entity
 163    {
 164       v3f pos;
 165       enum logic_type logic_type;
 166       int enabled;
 167
 168       /* indexes the action array */
 169       u32 action_start, action_count;
 170    }
 171    * logic_entities;
 172    u32 logic_entity_count;
 173
 174    /*
 175     * Action array
 176     */
 177    struct logic_action
 178    {
 179       u32 event,     /* on trigger, on enable, etc (TODO: Enum) */
 180           target_id; /* thing to target, 0: self */
 181
 182    }
 183    * logic_actions;
 184    u32 logic_action_count;
 185
 186    /*
 187     * Box trigger entities
 188     */
 189    struct trigger_zone
 190    {
 191       m4x3f transform, inv_transform;
 192       u32   trigger_entity;
 193    }
 194    * triggers;
 195    u32 trigger_count;
 196
 197
 198    /*
 199     * Routes (world_routes.h)
 200     * --------------------------------------------------------------------------
 201     */
 202    struct route_node
 203    {
 204       v3f co, right, up, h;
 205       u32 next[2];
 206
 207       u32 special_type, special_id, current_refs, ref_count;
 208       u32 route_ids[4];    /* Gates can be linked into up to four routes */
 209    }
 210    *nodes;
 211    u32 node_count;
 212
 213    struct route
 214    {
 215       u32 track_id;
 216       v4f colour;
 217
 218       u32 start;
 219       mdl_submesh sm;
 220
 221       int active;
 222       float factive;
 223
 224       double best_lap, latest_pass; /* Session */
 225
 226       m4x3f scoreboard_transform;
 227    }
 228    *routes;
 229    u32 route_count;
 230
 231    struct route_gate
 232    {
 233       struct teleport_gate
 234       {
 235          v3f co[2];
 236          v4f q[2];
 237          v2f dims;
 238
 239          m4x3f to_world, recv_to_world, transport;
 240       }
 241       gate;
 242
 243       u32 node_id;
 244
 245       struct route_timing
 246       {
 247          u32 version; /* Incremented on every teleport */
 248          double time;
 249       }
 250       timing;
 251    }
 252    *gates;
 253    u32 gate_count;
 254
 255    struct route_collector
 256    {
 257       struct route_timing timing;
 258    }
 259    *collectors;
 260    u32 collector_count;
 261
 262
 263    /* logic
 264     * ----------------------------------------------------
 265     */
 266
 267    u32 active_gate,
 268        current_run_version;
 269    double time, rewind_from, rewind_to, last_use;
 270
 271    /* world geometry */
 272    scene *scene_geo,
 273          *scene_no_collide,
 274          *scene_lines;
 275
 276    /* spacial mappings */
 277    bh_tree *audio_bh,
 278            *trigger_bh,
 279            *geo_bh;
 280
 281    /* graphics */
 282    glmesh mesh_geo,
 283           mesh_no_collide,
 284           mesh_route_lines,
 285           mesh_water;
 286
 287    rigidbody rb_geo;
 288
 289    /* TODO Maybe make this less hardcoded */
 290    mdl_submesh sm_geo_std_oob,   sm_geo_std, sm_geo_vb,
 291                sm_foliage_main,  sm_foliage_alphatest,
 292                sm_graffiti, sm_subworld, sm_terrain;
 293
 294    /*
 295     * Allocated AFTER all previous buffers are done
 296     * --------------------------------------------------------------------------
 297     */
 298
 299    struct instance_cache
 300    {
 301       mdl_context *mdl;
 302       u32 pstr_file;
 303    }
 304    instance_cache[32];
 305    u32 instance_cache_count;
 306 }
 307 world;
 308
 309
 310 /*
 311  * API
 312  */
 313
 314 VG_STATIC int ray_hit_is_ramp( ray_hit *hit );
 315 VG_STATIC int ray_hit_is_terrain( ray_hit *hit );
 316 VG_STATIC void ray_world_get_tri( ray_hit *hit, v3f tri[3] );
 317 VG_STATIC int ray_world( v3f pos, v3f dir, ray_hit *hit );
 318
 319 /*
 320  * Submodules
 321  */
 322
 323 #include "world_routes.h"
 324 #include "world_sfd.h"
 325 #include "world_render.h"
 326 #include "world_water.h"
 327 #include "world_gen.h"
 328 #include "world_gate.h"
 329
 330 /*
 331  * -----------------------------------------------------------------------------
 332  *                                    Events
 333  * -----------------------------------------------------------------------------
 334  */
 335
 336 VG_STATIC void world_init(void)
 337 {
 338    vg_convar_push( (struct vg_convar){
 339       .name = "water_enable",
 340       .data = &world.water.enabled,
 341       .data_type = k_convar_dtype_i32,
 342       .opt_i32 = { .min=0, .max=1, .clamp=1 },
 343       .persistent = 0
 344    });
 345
 346    world.sky_rate = 1.0;
 347    world.sky_target_rate = 1.0;
 348
 349    shader_terrain_register();
 350    shader_sky_register();
 351    shader_planeinf_register();
 352    shader_gpos_register();
 353    shader_fscolour_register();
 354    shader_alphatest_register();
 355
 356    vg_info( "Loading world resources\n" );
 357
 358    vg_linear_clear( vg_mem.scratch );
 359    mdl_context *msky = mdl_load_full( vg_mem.scratch, "models/rs_skydome.mdl" );
 360
 361    mdl_node *nlower = mdl_node_from_name( msky, "dome_lower" ),
 362             *nupper = mdl_node_from_name( msky, "dome_upper" );
 363
 364    world.dome_lower = *mdl_node_submesh( msky, nlower, 0 );
 365    world.dome_upper = *mdl_node_submesh( msky, nupper, 0 );
 366
 367    vg_acquire_thread_sync();
 368    {
 369       mdl_unpack_glmesh( msky, &world.skydome );
 370    }
 371    vg_release_thread_sync();
 372
 373    /* Other systems */
 374    vg_info( "Loading other world systems\n" );
 375
 376    vg_loader_highwater( world_render_init, NULL, NULL );
 377    vg_loader_highwater( world_sfd_init, NULL, NULL );
 378    vg_loader_highwater( world_water_init, NULL, NULL );
 379    vg_loader_highwater( world_gates_init, NULL, NULL );
 380    vg_loader_highwater( world_routes_init, NULL, NULL );
 381
 382    /* Allocate dynamic world memory arena */
 383    u32 max_size = 72*1024*1024;
 384    world.dynamic_vgl = vg_create_linear_allocator( vg_mem.rtmemory, max_size );
 385 }
 386
 387 VG_STATIC void world_update( v3f pos )
 388 {
 389    world.sky_time += world.sky_rate * vg.time_delta;
 390    world.sky_rate = vg_lerp( world.sky_rate, world.sky_target_rate,
 391                                  vg.time_delta * 5.0 );
 392
 393    world_routes_update();
 394 #if 0
 395    world_routes_debug();
 396 #endif
 397
 398    int closest = 0;
 399    float min_dist = INFINITY;
 400
 401    for( int i=0; i<world.route_count; i++ )
 402    {
 403       float d = v3_dist2( world.routes[i].scoreboard_transform[3], pos );
 404
 405       if( d < min_dist )
 406       {
 407          min_dist = d;
 408          closest = i;
 409       }
 410    }
 411
 412    if( (world.active_route_board != closest) || network_scores_updated )
 413    {
 414       network_scores_updated = 0;
 415       world.active_route_board = closest;
 416
 417       struct route *route = &world.routes[closest];
 418
 419       u32 id = route->track_id;
 420
 421       if( id != 0xffffffff )
 422       {
 423          struct netmsg_board *local_board = &scoreboard_client_data.boards[id];
 424
 425          for( int i=0; i<13; i++ )
 426          {
 427             sfd_encode( i, &local_board->data[27*i] );
 428          }
 429       }
 430    }
 431
 432 #if 0
 433    VG_STATIC int in_zone = 0;
 434
 435    int in_zone_this_time = 0;
 436
 437    for( int i=0; i<world.achievement_zones_count; i++ )
 438    {
 439       struct achievement_zone *zone = &world.achievement_zones[i];
 440
 441       v3f local;
 442       m4x3_mulv( zone->inv_transform, pos, local );
 443
 444       if( (fabsf(local[0]) <= 1.0f) &&
 445           (fabsf(local[1]) <= 1.0f) &&
 446           (fabsf(local[2]) <= 1.0f) )
 447       {
 448          in_zone_this_time = 1;
 449
 450          if( !in_zone && zone->ptarget )
 451          {
 452             audio_lock();
 453             audio_player_playclip( &zone->ptarget->player,
 454                                    &zone->ptarget->temp_embedded_clip );
 455             audio_unlock();
 456          }
 457
 458          if( !zone->triggered )
 459          {
 460             steam_set_achievement( zone->name );
 461             steam_store_achievements();
 462          }
 463
 464          zone->triggered = 1;
 465       }
 466
 467       vg_line_boxf_transformed( zone->transform, (boxf){{-1.0f,-1.0f,-1.0f},
 468                                                         { 1.0f, 1.0f, 1.0f}},
 469                                                         0xff00ff00 );
 470    }
 471
 472    in_zone = in_zone_this_time;
 473 #endif
 474
 475    sfd_update();
 476 }
 477
 478 /*
 479  * -----------------------------------------------------------------------------
 480  *                              API implementation
 481  * -----------------------------------------------------------------------------
 482  */
 483
 484 VG_STATIC void ray_world_get_tri( ray_hit *hit, v3f tri[3] )
 485 {
 486    for( int i=0; i<3; i++ )
 487       v3_copy( world.scene_geo->arrvertices[ hit->tri[i] ].co, tri[i] );
 488 }
 489
 490 VG_STATIC int ray_world( v3f pos, v3f dir, ray_hit *hit )
 491 {
 492    return scene_raycast( world.scene_geo, world.geo_bh, pos, dir, hit );
 493 }
 494
 495 VG_STATIC int ray_hit_is_terrain( ray_hit *hit )
 496 {
 497    u32 valid_start = 0,
 498        valid_end   = world.sm_terrain.vertex_count;
 499
 500    return (hit->tri[0] >= valid_start) &&
 501           (hit->tri[0]  < valid_end);
 502 }
 503
 504 VG_STATIC int ray_hit_is_ramp( ray_hit *hit )
 505 {
 506    u32 valid_start = world.sm_geo_std.vertex_start,
 507        valid_end   = world.sm_geo_vb.vertex_start;
 508
 509    return (hit->tri[0] >= valid_start) &&
 510           (hit->tri[0]  < valid_end);
 511 }
 512
 513 #endif /* WORLD_H */