menu.c

   1 #pragma once
   2 #include "skaterift.h"
   3 #include "menu.h"
   4 #include "model.h"
   5 #include "entity.h"
   6 #include "input.h"
   7 #include "world_map.h"
   8 #include "ent_miniworld.h"
   9 #include "audio.h"
  10 #include "workshop.h"
  11 #include "gui.h"
  12 #include "shaders/model_menu.h"
  13
  14 struct global_menu menu = { .skip_starter = 0 };
  15
  16 /*
  17  * Attaches memory locations to the various items in the menu
  18  */
  19 void menu_link(void)
  20 {
  21    /* link data locations */
  22    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
  23       ent_menuitem *item = mdl_arritm( &menu.items, i );
  24
  25       if( item->type == k_ent_menuitem_type_toggle ||
  26           item->type == k_ent_menuitem_type_slider ){
  27
  28          const char *name;
  29
  30          if( item->type == k_ent_menuitem_type_slider )
  31             name = mdl_pstr( &menu.model, item->slider.pstr_data );
  32          else
  33             name = mdl_pstr( &menu.model, item->checkmark.pstr_data );
  34          vg_var *var = vg_console_match_var( name );
  35
  36          if( var ){
  37             if( ( item->type == k_ent_menuitem_type_slider &&
  38                   var->data_type != k_var_dtype_f32
  39                 ) ||
  40                 ( item->type == k_ent_menuitem_type_toggle &&!
  41                   ( var->data_type == k_var_dtype_i32 ||
  42                     var->data_type == k_var_dtype_u32
  43                   )
  44                )
  45             ){
  46                vg_error( "Cannot hook to data %s(%p), because it is type %d.\n",
  47                            name, var, var->data_type );
  48                item->pvoid = NULL;
  49             }
  50             else{
  51                item->pvoid = var->data;
  52             }
  53          }
  54          else{
  55             vg_error( "No data named %s\n", name );
  56             item->pvoid = NULL;
  57          }
  58       }
  59       else{
  60          item->pvoid = NULL;
  61       }
  62    }
  63
  64    /* link controllers */
  65    menu.ctr_deck = NULL;
  66    menu.ctr_kbm = NULL;
  67    menu.ctr_ps = NULL;
  68    menu.ctr_steam = NULL;
  69    menu.ctr_xbox = NULL;
  70
  71    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
  72       ent_menuitem *item = mdl_arritm( &menu.items, i );
  73
  74       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "deck" ) )
  75          menu.ctr_deck = item;
  76       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "kbm" ) )
  77          menu.ctr_kbm = item;
  78       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "ps" ) )
  79          menu.ctr_ps = item;
  80       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "steam" ) )
  81          menu.ctr_steam = item;
  82       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "xbox" ) )
  83          menu.ctr_xbox = item;
  84    }
  85 }
  86
  87 void menu_close(void)
  88 {
  89    skaterift.activity = k_skaterift_default;
  90    menu.page_depth = 0;
  91    menu.page = 0xffffffff;
  92    srinput.state = k_input_state_resume;
  93 }
  94
  95 void menu_init(void)
  96 {
  97    void *alloc = vg_mem.rtmemory;
  98
  99    mdl_open( &menu.model, "models/rs_menu.mdl", alloc );
 100    mdl_load_metadata_block( &menu.model, alloc );
 101
 102    vg_linear_clear( vg_mem.scratch );
 103
 104    MDL_LOAD_ARRAY( &menu.model, &menu.items,   ent_menuitem, alloc );
 105    MDL_LOAD_ARRAY( &menu.model, &menu.markers, ent_marker, alloc );
 106    MDL_LOAD_ARRAY( &menu.model, &menu.cameras, ent_camera, alloc );
 107
 108    u32 count = mdl_arrcount( &menu.model.textures );
 109    menu.textures = vg_linear_alloc(alloc,vg_align8(sizeof(GLuint)*(count+1)));
 110    menu.textures[0] = vg.tex_missing;
 111
 112    mdl_async_load_glmesh( &menu.model, &menu.mesh, NULL );
 113
 114    for( u32 i=0; i<count; i ++ ){
 115       vg_linear_clear( vg_mem.scratch );
 116       menu.textures[i+1] = vg.tex_missing;
 117
 118       mdl_texture *tex = mdl_arritm( &menu.model.textures, i );
 119       void *data = vg_linear_alloc( vg_mem.scratch, tex->file.pack_size );
 120       mdl_fread_pack_file( &menu.model, &tex->file, data );
 121       vg_tex2d_load_qoi_async( data, tex->file.pack_size,
 122                                VG_TEX2D_LINEAR|VG_TEX2D_CLAMP,
 123                                &menu.textures[i+1] );
 124    }
 125
 126    mdl_close( &menu.model );
 127
 128    vg_console_reg_var( "skip_starter_menu", &menu.skip_starter,
 129                        k_var_dtype_i32, VG_VAR_PERSISTENT );
 130 }
 131
 132 void menu_at_begin(void)
 133 {
 134    if( menu.skip_starter ) return;
 135
 136    skaterift.activity = k_skaterift_menu;
 137    menu.page = 0xffffffff;
 138    menu_open_page( "Starter", k_ent_menuitem_stack_append );
 139 }
 140
 141 /*
 142  * Drop back a page until we're at the bottom which then we jus quit
 143  */
 144 static void menu_back_page(void){
 145    menu.page_depth --;
 146    if( menu.page_depth == 0 ){
 147       menu_close();
 148    }
 149    else{
 150       menu.page = menu.page_stack[ menu.page_depth ].page;
 151       menu.cam = menu.page_stack[ menu.page_depth ].cam;
 152
 153       if( menu.input_mode == k_menu_input_mode_keys )
 154          menu.loc = menu.page_stack[ menu.page_depth ].loc;
 155       else menu.loc = NULL;
 156    }
 157 }
 158
 159 /*
 160  * Open page to the string identifier
 161  */
 162 void menu_open_page( const char *name,
 163                      enum ent_menuitem_stack_behaviour stackmode )
 164 {
 165    srinput.state = k_input_state_resume;
 166    if( stackmode == k_ent_menuitem_stack_append ){
 167       if( menu.page_depth >= MENU_STACK_SIZE )
 168          vg_fatal_error( "Stack overflow\n" );
 169    }
 170    else{
 171       if( menu.page_depth == 0 )
 172          vg_fatal_error( "Stack underflow\n" );
 173    }
 174
 175    u32 hash = vg_strdjb2( name );
 176    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 177       ent_menuitem *item = mdl_arritm( &menu.items, i );
 178
 179       if( item->type == k_ent_menuitem_type_page ){
 180          if( mdl_pstreq( &menu.model, item->page.pstr_name, name, hash ) ){
 181             u32 new_page = __builtin_ctz( item->groups );
 182
 183             if( new_page == menu.page ){
 184                if( stackmode != k_ent_menuitem_stack_replace )
 185                   menu_back_page();
 186             }
 187             else{
 188                menu.page_stack[ menu.page_depth ].page = menu.page;
 189                menu.page_stack[ menu.page_depth ].cam = menu.cam;
 190                menu.page_stack[ menu.page_depth ].loc = menu.loc;
 191
 192                if( stackmode == k_ent_menuitem_stack_append )
 193                   menu.page_depth ++;
 194
 195                menu.page = __builtin_ctz( item->groups );
 196
 197                if( menu.input_mode == k_menu_input_mode_keys ){
 198                   if( item->page.id_entrypoint ){
 199                      u32 id = mdl_entity_id_id( item->page.id_entrypoint );
 200                      menu.loc = mdl_arritm( &menu.items, id );
 201                   }
 202                }
 203
 204                if( item->page.id_viewpoint ){
 205                   u32 id = mdl_entity_id_id( item->page.id_viewpoint );
 206                   menu.cam = mdl_arritm( &menu.cameras, id );
 207                }
 208             }
 209             return;
 210          }
 211       }
 212    }
 213 }
 214
 215 /*
 216  * activate a pressable type
 217  */
 218 static void menu_trigger_item( ent_menuitem *item )
 219 {
 220    audio_lock();
 221    audio_oneshot( &audio_ui[0], 1.0f, 0.0f );
 222    audio_unlock();
 223
 224    if     ( item->type == k_ent_menuitem_type_event_button )
 225    {
 226       u32 q = item->button.pstr;
 227
 228       if( MDL_CONST_PSTREQ( &menu.model, q, "quit" ) )
 229       {
 230          vg.window_should_close = 1;
 231       }
 232       else if( MDL_CONST_PSTREQ( &menu.model, q, "map" ) ){
 233          menu_close();
 234          world_map_enter();
 235       }
 236       else if( MDL_CONST_PSTREQ( &menu.model, q, "hub" ) ){
 237          if( world_static.active_instance == k_world_purpose_client ){
 238             menu_close();
 239             ent_miniworld_goback();
 240          }
 241       }
 242       else if( MDL_CONST_PSTREQ( &menu.model, q, "credits" ) ){
 243          menu.credits_open = 1;
 244       }
 245       else if( MDL_CONST_PSTREQ( &menu.model, q, "workshop" ) ){
 246          workshop_submit_command(0,NULL);
 247       }
 248       else if( MDL_CONST_PSTREQ( &menu.model, q, "engine" ) ){
 249          vg_settings_open();
 250       }
 251       else if( MDL_CONST_PSTREQ( &menu.model, q, "prem_store" ) ){
 252          if( steam_ready )
 253             SteamAPI_ISteamFriends_ActivateGameOverlayToStore(
 254                   SteamAPI_SteamFriends(), 2103940, k_EOverlayToStoreFlag_None);
 255       }
 256       else if( MDL_CONST_PSTREQ( &menu.model, q, "prem_nevermind" ) ){
 257          menu_close();
 258       }
 259       else if( MDL_CONST_PSTREQ( &menu.model, q, "starter_enter" ) )
 260       {
 261          if( network_client.auto_connect )
 262             network_client.user_intent = k_server_intent_online;
 263
 264          menu_close();
 265       }
 266    }
 267    else if( item->type == k_ent_menuitem_type_page_button )
 268    {
 269       menu_open_page( mdl_pstr( &menu.model, item->button.pstr ),
 270                       item->button.stack_behaviour );
 271    }
 272    else if( item->type == k_ent_menuitem_type_toggle )
 273    {
 274       if( item->pi32 ){
 275          *item->pi32 = *item->pi32 ^ 0x1;
 276       }
 277    }
 278 }
 279
 280 static f32 menu_slider_snap( f32 value, f32 old, f32 notch ){
 281    f32 const k_epsilon = 0.0125f;
 282
 283    if( fabsf(notch-value) < k_epsilon ){
 284       if( fabsf(notch-old) > k_epsilon ){
 285          audio_lock();
 286          audio_oneshot( &audio_ui[0], 1.0f, 0.0f );
 287          audio_unlock();
 288       }
 289
 290       return notch;
 291    }
 292    else
 293       return value;
 294 }
 295
 296 static void menu_setitem_type( ent_menuitem *item,
 297                                enum ent_menuitem_type type ){
 298    if( !item ) return;
 299    item->type = type;
 300 }
 301
 302 /*
 303  * Run from vg_gui every frame
 304  */
 305 void menu_update(void)
 306 {
 307    if( workshop_form.page != k_workshop_form_hidden ){
 308       return;
 309    }
 310
 311    int escape = button_down( k_srbind_mback );
 312    if( menu.credits_open || vg.settings_open ){
 313       if( escape ){
 314          menu.credits_open = 0;
 315
 316          if( vg.settings_open )
 317             vg_settings_close();
 318       }
 319       return;
 320    }
 321
 322    if( button_down( k_srbind_mopen ) ){
 323       if( skaterift.activity == k_skaterift_default ){
 324          skaterift.activity = k_skaterift_menu;
 325          menu.page = 0xffffffff;
 326          menu_open_page( "Main Menu", k_ent_menuitem_stack_append );
 327          return;
 328       }
 329    }
 330
 331    if( skaterift.activity != k_skaterift_menu ) return;
 332    enum menu_input_mode prev_mode = menu.input_mode;
 333
 334    /* get buttons inputs
 335     * -------------------------------------------------------------------*/
 336    int ml = button_down( k_srbind_mleft ),
 337        mr = button_down( k_srbind_mright ),
 338        mu = button_down( k_srbind_mup ),
 339        md = button_down( k_srbind_mdown ),
 340        mh = ml-mr,
 341        mv = mu-md,
 342        enter = button_down( k_srbind_maccept );
 343
 344    if( mh||mv||enter ){
 345       menu.input_mode = k_menu_input_mode_keys;
 346    }
 347
 348    /* get mouse inputs
 349     * --------------------------------------------------------------------*/
 350    menu.mouse_dist += v2_length( vg.mouse_delta ); /* TODO: Move to UI */
 351    menu.mouse_track += vg.time_frame_delta;
 352    if( menu.mouse_track > 0.1f ){
 353       menu.mouse_track = fmodf( menu.mouse_track, 0.1f );
 354       if( menu.mouse_dist > 10.0f ){
 355          menu.input_mode = k_menu_input_mode_mouse;
 356          menu.mouse_dist = 0.0f;
 357       }
 358    }
 359
 360    if( ui_clicking(UI_MOUSE_LEFT) || ui_clicking(UI_MOUSE_RIGHT) ){
 361       menu.input_mode = k_menu_input_mode_mouse;
 362    }
 363
 364    if( menu.input_mode == k_menu_input_mode_mouse ){
 365       /*
 366        * handle mouse input
 367        * ------------------------------------------------------------*/
 368       vg_ui.wants_mouse = 1;
 369
 370       /*
 371        * this raycasting is super cumbersome because all the functions were
 372        * designed for other purposes. we dont care though.
 373        */
 374       m4x4f inverse;
 375       m4x4_inv( menu.view.mtx.p, inverse );
 376       v4f coords;
 377       coords[0] = vg_ui.mouse[0];
 378       coords[1] = vg.window_y - vg_ui.mouse[1];
 379       v2_div( coords, (v2f){ vg.window_x, vg.window_y }, coords );
 380       v2_muls( coords, 2.0f, coords );
 381       v2_add( coords, (v2f){-1.0f,-1.0f}, coords );
 382       coords[2] = 1.0f;
 383       coords[3] = 1.0f;
 384       m4x4_mulv( inverse, coords, coords );
 385       v3f ray;
 386       m3x3_mulv( menu.view.transform, coords, ray );
 387       v3_normalize( ray );
 388
 389       if( menu.loc && (menu.loc->type == k_ent_menuitem_type_slider) &&
 390           ui_clicking(UI_MOUSE_LEFT) && menu.loc->pf32 ){
 391
 392          u32 il = mdl_entity_id_id( menu.loc->slider.id_min ),
 393              ir = mdl_entity_id_id( menu.loc->slider.id_max );
 394          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 395                     *mr = mdl_arritm( &menu.markers, ir );
 396
 397          v3f q2;
 398          v3_muladds( menu.view.pos, ray, 100.0f, q2 );
 399
 400          f32 s,t;
 401          v3f c1, c2;
 402          v3f p1, q1, v0;
 403          v3_sub( mr->transform.co, ml->transform.co, v0 );
 404          v3_muladds( ml->transform.co, v0, -1.0f, p1 );
 405          v3_muladds( mr->transform.co, v0,  1.0f, q1 );
 406          closest_segment_segment( p1, q1, menu.view.pos, q2, &s,&t, c1,c2 );
 407
 408          s-=(1.0f/3.0f);
 409          s/=(1.0f/3.0f);
 410
 411          if( ui_click_down(UI_MOUSE_LEFT) ){
 412             menu.slider_offset = *menu.loc->pf32 - s;
 413          }
 414
 415          f32 newvalue = vg_clampf( s+menu.slider_offset, 0.0f, 1.0f );
 416
 417          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.00f );
 418          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 1.00f );
 419          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.25f );
 420          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.50f );
 421          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.75f );
 422
 423          *menu.loc->pf32 = newvalue;
 424          return;
 425       }
 426
 427       ent_menuitem *hit_item = NULL;
 428
 429       for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 430          ent_menuitem *item = mdl_arritm( &menu.items, i );
 431
 432          if( item->type == k_ent_menuitem_type_page ) continue;
 433          if( (item->type == k_ent_menuitem_type_visual) ||
 434              (item->type == k_ent_menuitem_type_visual_nocol) ) continue;
 435          if( item->type == k_ent_menuitem_type_binding ) continue;
 436          if( !(item->groups & (0x1<<menu.page)) ) continue;
 437
 438          ent_menuitem *ray_item = item;
 439
 440          if( item->type == k_ent_menuitem_type_slider ){
 441             u32 subtarget = mdl_entity_id_id( item->slider.id_handle );
 442             ray_item = mdl_arritm( &menu.items, subtarget );
 443          }
 444
 445          v3f local_ray,
 446              local_co;
 447
 448          m4x3f inverse_mtx;
 449          mdl_transform_m4x3( &ray_item->transform, inverse_mtx );
 450          m4x3_invert_full( inverse_mtx, inverse_mtx );
 451
 452          m4x3_mulv( inverse_mtx, menu.view.transform[3], local_co );
 453          m3x3_mulv( inverse_mtx, ray, local_ray );
 454          v3_normalize( local_ray );
 455
 456          local_ray[0] = 1.0f/local_ray[0];
 457          local_ray[1] = 1.0f/local_ray[1];
 458          local_ray[2] = 1.0f/local_ray[2];
 459
 460          for( u32 j=0; j<ray_item->submesh_count; j++ ){
 461             mdl_submesh *sm = mdl_arritm( &menu.model.submeshs,
 462                                            ray_item->submesh_start + j );
 463             if( ray_aabb1( sm->bbx, local_co, local_ray, 1000.0f ) ){
 464                hit_item = item;
 465                break;
 466             }
 467          }
 468       }
 469
 470       if( hit_item != menu.loc ){
 471          menu.loc = hit_item;
 472       }
 473
 474       if( escape ){
 475          menu_back_page();
 476       }
 477       else if( menu.loc ){
 478          if( ui_click_down( UI_MOUSE_LEFT ) )
 479          {
 480             menu_trigger_item( menu.loc );
 481          }
 482       }
 483    }
 484    else if( menu.input_mode == k_menu_input_mode_keys ){
 485       /*
 486        * handle button input
 487        * ------------------------------------------------------------*/
 488       if( (prev_mode != k_menu_input_mode_keys) && !menu.loc ){
 489          for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 490             ent_menuitem *item = mdl_arritm( &menu.items, i );
 491
 492             if( (item->type != k_ent_menuitem_type_page) &&
 493                 (item->type != k_ent_menuitem_type_visual) &&
 494                 (item->type != k_ent_menuitem_type_visual_nocol) &&
 495                 (item->groups & (0x1<<menu.page)) ){
 496                menu.loc = item;
 497             }
 498          }
 499       }
 500
 501       if( !menu.loc ) vg_fatal_error( "No location\n" );
 502
 503       if( menu.loc->type == k_ent_menuitem_type_slider && menu.loc->pf32 ){
 504          f32 move = 0.0f;
 505
 506          if( vg_input.display_input_method == k_input_method_controller ){
 507             move += button_press( k_srbind_mright );
 508             move -= button_press( k_srbind_mleft );
 509          }
 510          else{
 511             move += axis_state( k_sraxis_mbrowse_h );
 512          }
 513
 514          move *= vg.time_frame_delta;
 515          *menu.loc->pf32 = vg_clampf( *menu.loc->pf32 + move, 0.0f, 1.0f );
 516
 517          mh = 0;
 518       }
 519
 520       if( escape )
 521       {
 522          menu_back_page();
 523          audio_lock();
 524          audio_oneshot( &audio_ui[3], 1.0f, 0.0f );
 525          audio_unlock();
 526       }
 527       else if( enter )
 528       {
 529          menu_trigger_item( menu.loc );
 530       }
 531       else if( mh||mv ){
 532          v3f opt;
 533          v3_zero( opt );
 534          f32 best = 0.5f;
 535          ent_menuitem *nextpos = NULL;
 536
 537          opt[0] += mh;
 538          opt[2] += mv;
 539          mdl_transform_vector( &menu.cam->transform, opt, opt );
 540
 541          for( u32 i=0; i<4; i++ ){
 542             u32 id = menu.loc->id_links[i];
 543             if( !id ) continue;
 544             u32 index = mdl_entity_id_id( id );
 545
 546             ent_menuitem *other = mdl_arritm( &menu.items, index );
 547             v3f delta;
 548             v3_sub( menu.loc->transform.co, other->transform.co, delta );
 549             v3_normalize( delta );
 550
 551             f32 score = v3_dot( delta, opt );
 552             if( score > best ){
 553                best = score;
 554                nextpos = other;
 555             }
 556          }
 557
 558          if( nextpos )
 559          {
 560             menu.loc = nextpos;
 561             audio_lock();
 562             audio_oneshot( &audio_ui[3], 1.0f, 0.0f );
 563             audio_unlock();
 564          }
 565       }
 566    }
 567
 568    menu_setitem_type( menu.ctr_deck, k_ent_menuitem_type_disabled );
 569    menu_setitem_type( menu.ctr_ps, k_ent_menuitem_type_disabled );
 570    menu_setitem_type( menu.ctr_kbm, k_ent_menuitem_type_disabled );
 571    menu_setitem_type( menu.ctr_xbox, k_ent_menuitem_type_disabled );
 572    menu_setitem_type( menu.ctr_steam, k_ent_menuitem_type_disabled );
 573
 574    if( vg_input.display_input_method == k_input_method_kbm )
 575       menu_setitem_type( menu.ctr_kbm, k_ent_menuitem_type_visual_nocol );
 576    else{
 577       if( vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS3 ||
 578           vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS4 ||
 579           vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS5 ){
 580          menu_setitem_type( menu.ctr_ps, k_ent_menuitem_type_visual_nocol );
 581       }
 582       else {
 583          menu_setitem_type( menu.ctr_xbox, k_ent_menuitem_type_visual_nocol );
 584       }
 585       /* FIXME: Steam/Deck controller detection? */
 586    }
 587 }
 588
 589 static void menu_binding_string( char buf[128], u32 pstr );
 590
 591 /*
 592  * Run from vg_gui when active
 593  */
 594 void menu_render(void)
 595 {
 596    glEnable(GL_BLEND);
 597    glDisable(GL_DEPTH_TEST);
 598    glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
 599    glBlendEquation(GL_FUNC_ADD);
 600
 601    shader_blitcolour_use();
 602    v4f colour;
 603    ui_hex_to_norm( ui_colour( k_ui_bg+3 ), colour );
 604    colour[3] = 0.5f;
 605
 606    shader_blitcolour_uColour( colour );
 607    render_fsquad();
 608
 609    if( (workshop_form.page != k_workshop_form_hidden) ||
 610        (vg_ui.focused_control_type != k_ui_control_none) ){
 611       return;
 612    }
 613
 614    if( vg.settings_open )
 615       return;
 616
 617    if( menu.credits_open ){
 618       ui_rect panel = { 0,0, 460, 400 },
 619               screen = { 0,0, vg.window_x,vg.window_y };
 620       ui_rect_center( screen, panel );
 621       ui_fill( panel, ui_colour(k_ui_bg) );
 622       ui_outline( panel, 1, ui_colour(k_ui_fg), 0 );
 623       ui_rect_pad( panel, (ui_px[]){8,8} );
 624
 625       ui_rect title;
 626       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 627       ui_text( title, "Skate Rift - Credits", 2, k_ui_align_middle_center, 0 );
 628       ui_split( panel, k_ui_axis_h, 28, 0, title, panel );
 629       ui_text( title, "Mt.Zero Software", 1, k_ui_align_middle_center, 0 );
 630
 631       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 632       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 633       ui_text( title, "Free Software", 2, k_ui_align_middle_center, 0 );
 634
 635       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 636       ui_text( panel,
 637             "Sam Lantinga       - SDL2 - libsdl.org\n"
 638             "Hunter WB          - Anyascii\n"
 639             "David Herberth     - GLAD\n"
 640             "Dominic Szablewski - QOI - qoiformat.org\n"
 641             "Sean Barrett       - stb_image,stb_vorbis,stb_include\n"
 642             "Khronos Group      - OpenGL\n"
 643             , 1, k_ui_align_left, 0 );
 644       return;
 645    }
 646
 647    glEnable( GL_DEPTH_TEST );
 648    glDisable( GL_BLEND );
 649
 650    f32 rate = vg.time_frame_delta * 12.0f;
 651
 652    if( menu.cam ){
 653       vg_camera target;
 654
 655       target.fov = menu.cam->fov;
 656       v3_copy( menu.cam->transform.co, target.pos );
 657
 658       v3f v0;
 659       mdl_transform_vector( &menu.cam->transform, (v3f){0.0f,-1.0f,0.0f}, v0 );
 660       v3_angles( v0, target.angles );
 661
 662       vg_camera_lerp( &menu.view, &target, rate, &menu.view );
 663
 664       menu.view.farz = 150.0f;
 665       menu.view.nearz = 0.01f;
 666
 667       vg_camera_update_transform( &menu.view );
 668       vg_camera_update_view( &menu.view );
 669       vg_camera_update_projection( &menu.view );
 670       vg_camera_finalize( &menu.view );
 671    }
 672    else return;
 673
 674    shader_model_menu_use();
 675    shader_model_menu_uTexMain( 1 );
 676    shader_model_menu_uPv( menu.view.mtx.pv );
 677    shader_model_menu_uPvmPrev( menu.view.mtx_prev.pv );
 678
 679    mesh_bind( &menu.mesh );
 680
 681    v4f white, blue;
 682
 683    ui_hex_to_norm( ui_colour( k_ui_fg ), white );
 684    ui_hex_to_norm( ui_colour( k_ui_orange+k_ui_brighter ), blue );
 685
 686    ent_menuitem *text_list[ 8 ];
 687    u32 text_count = 0;
 688
 689    u32 current_mat = 0xffffffff;
 690
 691    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 692       ent_menuitem *item = mdl_arritm( &menu.items, i );
 693
 694       if(   item->type == k_ent_menuitem_type_disabled ) continue;
 695       if(   item->type == k_ent_menuitem_type_page ) continue;
 696       if( !(item->groups & (0x1 << menu.page)) ) continue;
 697
 698       if(   item->type == k_ent_menuitem_type_binding ){
 699          if( text_count < vg_list_size(text_list) )
 700             text_list[ text_count ++ ] = item;
 701          else
 702             vg_fatal_error( "Text list overflow" );
 703
 704          continue;
 705       }
 706
 707       int selected = 0;
 708
 709       if( menu.loc ){
 710          if( menu.loc->type == k_ent_menuitem_type_slider ){
 711             u32 subid = menu.loc->slider.id_handle;
 712             if( item == mdl_arritm( &menu.items, mdl_entity_id_id(subid) ))
 713                selected = 1;
 714          }
 715          else{
 716             if( item == menu.loc )
 717                selected = 1;
 718          }
 719       }
 720
 721       if( item->type == k_ent_menuitem_type_visual_nocol ){
 722          shader_model_menu_uColour( (v4f){1.0f,1.0f,1.0f,1.0f} );
 723       }
 724       else{
 725          v4f colour;
 726          item->factive = vg_lerpf( item->factive, selected, rate );
 727          v4_lerp( white, blue, item->factive, colour );
 728          shader_model_menu_uColour( colour );
 729       }
 730
 731       f32 scale = 1.0f+item->factive*0.1f;
 732
 733       m4x3f mmdl;
 734       mdl_transform transform = item->transform;
 735       v3_muls( transform.s, scale, transform.s );
 736       mdl_transform_m4x3( &transform, mmdl );
 737
 738       if( item->type == k_ent_menuitem_type_toggle && item->pi32 ){
 739          u32 subid = mdl_entity_id_id( item->checkmark.id_check );
 740          ent_menuitem *subitem = mdl_arritm( &menu.items, subid );
 741
 742          v3_muladds( item->transform.co, item->checkmark.offset, scale,
 743                      subitem->transform.co );
 744
 745          subitem->fvisible = vg_lerpf( subitem->fvisible, *item->pi32, rate );
 746          v3_fill( subitem->transform.s, subitem->fvisible );
 747       }
 748       else if( item->type == k_ent_menuitem_type_slider && item->pf32 ){
 749          u32 il = mdl_entity_id_id( item->slider.id_min ),
 750              ir = mdl_entity_id_id( item->slider.id_max ),
 751              ih = mdl_entity_id_id( item->slider.id_handle );
 752          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 753                     *mr = mdl_arritm( &menu.markers, ir );
 754          ent_menuitem *handle = mdl_arritm( &menu.items, ih );
 755
 756          v3_lerp( ml->transform.co, mr->transform.co, *item->pf32,
 757                   handle->transform.co );
 758       }
 759
 760       shader_model_menu_uMdl( mmdl );
 761
 762       for( u32 j=0; j<item->submesh_count; j++ )
 763       {
 764          u32 index = item->submesh_start + j;
 765          mdl_submesh *sm = mdl_arritm( &menu.model.submeshs, index );
 766
 767          if( sm->material_id != current_mat )
 768          {
 769             mdl_material *mat = mdl_arritm( &menu.model.materials,
 770                                             sm->material_id-1 );
 771             glActiveTexture( GL_TEXTURE1 );
 772
 773             if( mat->shader == k_shader_standard )
 774             {
 775                struct shader_props_standard *props = mat->props.compiled;
 776
 777                /* FIXME: why does menu have its own texture array?? */
 778                glBindTexture( GL_TEXTURE_2D,
 779                               menu.textures[ props->tex_diffuse ] );
 780             }
 781             else
 782             {
 783                glBindTexture( GL_TEXTURE_2D, vg.tex_missing );
 784             }
 785
 786             current_mat = sm->material_id;
 787          }
 788
 789          mdl_draw_submesh( sm );
 790       }
 791    }
 792
 793    if( !text_count ) return;
 794
 795    char buf[ 128 ];
 796
 797    m4x3f local;
 798    m4x3_identity( local );
 799
 800    font3d_bind( &gui.font, k_font_shader_default, 0, NULL, &menu.view );
 801    for( u32 i=0; i<text_count; i++ ){
 802       ent_menuitem *item = text_list[ i ];
 803       m4x3f transform;
 804       mdl_transform_m4x3( &item->transform, transform );
 805
 806       u32 variant = item->binding.font_variant;
 807       menu_binding_string( buf, item->binding.pstr_bind );
 808       f32 offset = font3d_string_width( variant, buf );
 809
 810       local[3][0] = -0.5f * offset;
 811       m4x3_mul( transform, local, transform );
 812
 813       font3d_simple_draw( variant, buf, &menu.view, transform );
 814    }
 815 }
 816
 817 static void menu_binding_string( char buf[128], u32 pstr ){
 818    vg_str str;
 819    vg_strnull( &str, buf, 128 );
 820
 821    if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_jump" ) ){
 822       vg_input_string( &str, input_button_list[k_srbind_jump], 1 );
 823    }
 824    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick0" ) ){
 825       vg_strcat( &str, "SHUVIT " );
 826       vg_input_string( &str, input_button_list[k_srbind_trick0], 1 );
 827    }
 828    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick1" ) ){
 829       vg_strcat( &str, "KICKFLIP " );
 830       vg_input_string( &str, input_button_list[k_srbind_trick1], 1 );
 831    }
 832    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick2" ) ){
 833       vg_strcat( &str, "TREFLIP " );
 834       vg_input_string( &str, input_button_list[k_srbind_trick2], 1 );
 835    }
 836    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_grab" ) ){
 837       vg_input_string( &str, input_axis_list[k_sraxis_grab], 1 );
 838    }
 839    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_grab_mod" ) ){
 840       vg_input_string( &str, input_joy_list[k_srjoystick_grab], 1 );
 841    }
 842    else
 843       vg_strcat( &str, "error" );
 844 }