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    static f32 repeater = 0.0f;
 308    if( repeater > 0.0f )
 309       repeater -= vg.time_frame_delta;
 310
 311    if( workshop_form.page != k_workshop_form_hidden ){
 312       return;
 313    }
 314
 315    bool escape = 0;
 316
 317    if( menu.credits_open || vg.settings_open )
 318    {
 319       vg_exec_input_program( k_vg_input_type_button_u8,
 320                              input_button_list[k_srbind_mback], &escape );
 321       if( escape )
 322       {
 323          menu.credits_open = 0;
 324
 325          if( vg.settings_open )
 326             vg_settings_close();
 327
 328          srinput.state = k_input_state_resume;
 329       }
 330       return;
 331    }
 332    escape = button_down( k_srbind_mback );
 333
 334    if( button_down( k_srbind_mopen ) ){
 335       if( skaterift.activity == k_skaterift_default ){
 336          skaterift.activity = k_skaterift_menu;
 337          menu.page = 0xffffffff;
 338          menu_open_page( "Main Menu", k_ent_menuitem_stack_append );
 339          return;
 340       }
 341    }
 342
 343    if( skaterift.activity != k_skaterift_menu ) return;
 344    enum menu_input_mode prev_mode = menu.input_mode;
 345
 346    /* get buttons inputs
 347     * -------------------------------------------------------------------*/
 348    int ml = button_down( k_srbind_mleft ),
 349        mr = button_down( k_srbind_mright ),
 350        mu = button_down( k_srbind_mup ),
 351        md = button_down( k_srbind_mdown ),
 352        mh = ml-mr,
 353        mv = mu-md,
 354        enter = button_down( k_srbind_maccept );
 355
 356    if( mh||mv||enter ){
 357       menu.input_mode = k_menu_input_mode_keys;
 358    }
 359
 360    /* get mouse inputs
 361     * --------------------------------------------------------------------*/
 362    menu.mouse_dist += v2_length( vg.mouse_delta ); /* TODO: Move to UI */
 363    menu.mouse_track += vg.time_frame_delta;
 364    if( menu.mouse_track > 0.1f ){
 365       menu.mouse_track = fmodf( menu.mouse_track, 0.1f );
 366       if( menu.mouse_dist > 10.0f ){
 367          menu.input_mode = k_menu_input_mode_mouse;
 368          menu.mouse_dist = 0.0f;
 369       }
 370    }
 371
 372    if( ui_clicking(UI_MOUSE_LEFT) || ui_clicking(UI_MOUSE_RIGHT) ){
 373       menu.input_mode = k_menu_input_mode_mouse;
 374    }
 375
 376    if( menu.input_mode == k_menu_input_mode_mouse ){
 377       /*
 378        * handle mouse input
 379        * ------------------------------------------------------------*/
 380       vg_ui.wants_mouse = 1;
 381
 382       /*
 383        * this raycasting is super cumbersome because all the functions were
 384        * designed for other purposes. we dont care though.
 385        */
 386       m4x4f inverse;
 387       m4x4_inv( menu.view.mtx.p, inverse );
 388       v4f coords;
 389       coords[0] = vg_ui.mouse[0];
 390       coords[1] = vg.window_y - vg_ui.mouse[1];
 391       v2_div( coords, (v2f){ vg.window_x, vg.window_y }, coords );
 392       v2_muls( coords, 2.0f, coords );
 393       v2_add( coords, (v2f){-1.0f,-1.0f}, coords );
 394       coords[2] = 1.0f;
 395       coords[3] = 1.0f;
 396       m4x4_mulv( inverse, coords, coords );
 397       v3f ray;
 398       m3x3_mulv( menu.view.transform, coords, ray );
 399       v3_normalize( ray );
 400
 401       if( menu.loc && (menu.loc->type == k_ent_menuitem_type_slider) &&
 402           ui_clicking(UI_MOUSE_LEFT) && menu.loc->pf32 ){
 403
 404          u32 il = mdl_entity_id_id( menu.loc->slider.id_min ),
 405              ir = mdl_entity_id_id( menu.loc->slider.id_max );
 406          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 407                     *mr = mdl_arritm( &menu.markers, ir );
 408
 409          v3f q2;
 410          v3_muladds( menu.view.pos, ray, 100.0f, q2 );
 411
 412          f32 s,t;
 413          v3f c1, c2;
 414          v3f p1, q1, v0;
 415          v3_sub( mr->transform.co, ml->transform.co, v0 );
 416          v3_muladds( ml->transform.co, v0, -1.0f, p1 );
 417          v3_muladds( mr->transform.co, v0,  1.0f, q1 );
 418          closest_segment_segment( p1, q1, menu.view.pos, q2, &s,&t, c1,c2 );
 419
 420          s-=(1.0f/3.0f);
 421          s/=(1.0f/3.0f);
 422
 423          if( ui_click_down(UI_MOUSE_LEFT) ){
 424             menu.slider_offset = *menu.loc->pf32 - s;
 425          }
 426
 427          f32 newvalue = vg_clampf( s+menu.slider_offset, 0.0f, 1.0f );
 428
 429          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.00f );
 430          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 1.00f );
 431          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.25f );
 432          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.50f );
 433          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.75f );
 434
 435          *menu.loc->pf32 = newvalue;
 436          return;
 437       }
 438
 439       ent_menuitem *hit_item = NULL;
 440
 441       for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 442          ent_menuitem *item = mdl_arritm( &menu.items, i );
 443
 444          if( item->type == k_ent_menuitem_type_page ) continue;
 445          if( (item->type == k_ent_menuitem_type_visual) ||
 446              (item->type == k_ent_menuitem_type_visual_nocol) ) continue;
 447          if( item->type == k_ent_menuitem_type_binding ) continue;
 448          if( !(item->groups & (0x1<<menu.page)) ) continue;
 449
 450          ent_menuitem *ray_item = item;
 451
 452          if( item->type == k_ent_menuitem_type_slider ){
 453             u32 subtarget = mdl_entity_id_id( item->slider.id_handle );
 454             ray_item = mdl_arritm( &menu.items, subtarget );
 455          }
 456
 457          v3f local_ray,
 458              local_co;
 459
 460          m4x3f inverse_mtx;
 461          mdl_transform_m4x3( &ray_item->transform, inverse_mtx );
 462          m4x3_invert_full( inverse_mtx, inverse_mtx );
 463
 464          m4x3_mulv( inverse_mtx, menu.view.transform[3], local_co );
 465          m3x3_mulv( inverse_mtx, ray, local_ray );
 466          v3_normalize( local_ray );
 467
 468          local_ray[0] = 1.0f/local_ray[0];
 469          local_ray[1] = 1.0f/local_ray[1];
 470          local_ray[2] = 1.0f/local_ray[2];
 471
 472          for( u32 j=0; j<ray_item->submesh_count; j++ ){
 473             mdl_submesh *sm = mdl_arritm( &menu.model.submeshs,
 474                                            ray_item->submesh_start + j );
 475             if( ray_aabb1( sm->bbx, local_co, local_ray, 1000.0f ) ){
 476                hit_item = item;
 477                break;
 478             }
 479          }
 480       }
 481
 482       if( hit_item != menu.loc ){
 483          menu.loc = hit_item;
 484       }
 485
 486       if( escape ){
 487          menu_back_page();
 488       }
 489       else if( menu.loc ){
 490          if( ui_click_down( UI_MOUSE_LEFT ) )
 491          {
 492             menu_trigger_item( menu.loc );
 493          }
 494       }
 495    }
 496    else if( menu.input_mode == k_menu_input_mode_keys ){
 497       /*
 498        * handle button input
 499        * ------------------------------------------------------------*/
 500       if( (prev_mode != k_menu_input_mode_keys) && !menu.loc ){
 501          for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 502             ent_menuitem *item = mdl_arritm( &menu.items, i );
 503
 504             if( (item->type != k_ent_menuitem_type_page) &&
 505                 (item->type != k_ent_menuitem_type_visual) &&
 506                 (item->type != k_ent_menuitem_type_visual_nocol) &&
 507                 (item->groups & (0x1<<menu.page)) ){
 508                menu.loc = item;
 509             }
 510          }
 511       }
 512
 513       if( !menu.loc ) vg_fatal_error( "No location\n" );
 514
 515       if( menu.loc->type == k_ent_menuitem_type_slider && menu.loc->pf32 ){
 516          f32 move = 0.0f;
 517
 518          if( vg_input.display_input_method == k_input_method_controller ){
 519             move += button_press( k_srbind_mright );
 520             move -= button_press( k_srbind_mleft );
 521          }
 522          else{
 523             move += axis_state( k_sraxis_mbrowse_h );
 524          }
 525
 526          move *= vg.time_frame_delta;
 527          *menu.loc->pf32 = vg_clampf( *menu.loc->pf32 + move, 0.0f, 1.0f );
 528
 529          mh = 0;
 530       }
 531
 532       if( escape )
 533       {
 534          menu_back_page();
 535          audio_lock();
 536          audio_oneshot( &audio_ui[3], 1.0f, 0.0f );
 537          audio_unlock();
 538       }
 539       else if( enter )
 540       {
 541          menu_trigger_item( menu.loc );
 542       }
 543       else if( mh||mv ){
 544          v3f opt;
 545          v3_zero( opt );
 546          f32 best = 0.5f;
 547          ent_menuitem *nextpos = NULL;
 548
 549          opt[0] += mh;
 550          opt[2] += mv;
 551          mdl_transform_vector( &menu.cam->transform, opt, opt );
 552
 553          for( u32 i=0; i<4; i++ ){
 554             u32 id = menu.loc->id_links[i];
 555             if( !id ) continue;
 556             u32 index = mdl_entity_id_id( id );
 557
 558             ent_menuitem *other = mdl_arritm( &menu.items, index );
 559             v3f delta;
 560             v3_sub( menu.loc->transform.co, other->transform.co, delta );
 561             v3_normalize( delta );
 562
 563             f32 score = v3_dot( delta, opt );
 564             if( score > best ){
 565                best = score;
 566                nextpos = other;
 567             }
 568          }
 569
 570          if( nextpos && (repeater <= 0.0f) )
 571          {
 572             menu.loc = nextpos;
 573             audio_lock();
 574             audio_oneshot( &audio_ui[3], 1.0f, 0.0f );
 575             audio_unlock();
 576             repeater += 0.1f;
 577          }
 578       }
 579    }
 580
 581    menu_setitem_type( menu.ctr_deck, k_ent_menuitem_type_disabled );
 582    menu_setitem_type( menu.ctr_ps, k_ent_menuitem_type_disabled );
 583    menu_setitem_type( menu.ctr_kbm, k_ent_menuitem_type_disabled );
 584    menu_setitem_type( menu.ctr_xbox, k_ent_menuitem_type_disabled );
 585    menu_setitem_type( menu.ctr_steam, k_ent_menuitem_type_disabled );
 586
 587    if( vg_input.display_input_method == k_input_method_kbm )
 588       menu_setitem_type( menu.ctr_kbm, k_ent_menuitem_type_visual_nocol );
 589    else{
 590       if( vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS3 ||
 591           vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS4 ||
 592           vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS5 ){
 593          menu_setitem_type( menu.ctr_ps, k_ent_menuitem_type_visual_nocol );
 594       }
 595       else {
 596          menu_setitem_type( menu.ctr_xbox, k_ent_menuitem_type_visual_nocol );
 597       }
 598       /* FIXME: Steam/Deck controller detection? */
 599    }
 600 }
 601
 602 static void menu_binding_string( char buf[128], u32 pstr );
 603
 604 /*
 605  * Run from vg_gui when active
 606  */
 607 void menu_render(void)
 608 {
 609    glEnable(GL_BLEND);
 610    glDisable(GL_DEPTH_TEST);
 611    glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
 612    glBlendEquation(GL_FUNC_ADD);
 613
 614    shader_blitcolour_use();
 615    v4f colour;
 616    ui_hex_to_norm( ui_colour( k_ui_bg+3 ), colour );
 617    colour[3] = 0.5f;
 618
 619    shader_blitcolour_uColour( colour );
 620    render_fsquad();
 621
 622    if( (workshop_form.page != k_workshop_form_hidden) ||
 623        (vg_ui.focused_control_type != k_ui_control_none) ){
 624       return;
 625    }
 626
 627    if( vg.settings_open )
 628       return;
 629
 630    if( menu.credits_open ){
 631       ui_rect panel = { 0,0, 460, 400 },
 632               screen = { 0,0, vg.window_x,vg.window_y };
 633       ui_rect_center( screen, panel );
 634       ui_fill( panel, ui_colour(k_ui_bg) );
 635       ui_outline( panel, 1, ui_colour(k_ui_fg), 0 );
 636       ui_rect_pad( panel, (ui_px[]){8,8} );
 637
 638       ui_rect title;
 639       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 640       ui_text( title, "Skate Rift - Credits", 2, k_ui_align_middle_center, 0 );
 641       ui_split( panel, k_ui_axis_h, 28, 0, title, panel );
 642       ui_text( title, "Mt.Zero Software", 1, k_ui_align_middle_center, 0 );
 643
 644       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 645       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 646       ui_text( title, "Free Software", 2, k_ui_align_middle_center, 0 );
 647
 648       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 649       ui_text( panel,
 650             "Sam Lantinga       - SDL2 - libsdl.org\n"
 651             "Hunter WB          - Anyascii\n"
 652             "David Herberth     - GLAD\n"
 653             "Dominic Szablewski - QOI - qoiformat.org\n"
 654             "Sean Barrett       - stb_image,stb_vorbis,stb_include\n"
 655             "Khronos Group      - OpenGL\n"
 656             , 1, k_ui_align_left, 0 );
 657       return;
 658    }
 659
 660    glEnable( GL_DEPTH_TEST );
 661    glDisable( GL_BLEND );
 662
 663    f32 rate = vg.time_frame_delta * 12.0f;
 664
 665    if( menu.cam ){
 666       vg_camera target;
 667
 668       target.fov = menu.cam->fov;
 669       v3_copy( menu.cam->transform.co, target.pos );
 670
 671       v3f v0;
 672       mdl_transform_vector( &menu.cam->transform, (v3f){0.0f,-1.0f,0.0f}, v0 );
 673       v3_angles( v0, target.angles );
 674
 675       vg_camera_lerp( &menu.view, &target, rate, &menu.view );
 676
 677       menu.view.farz = 150.0f;
 678       menu.view.nearz = 0.01f;
 679
 680       vg_camera_update_transform( &menu.view );
 681       vg_camera_update_view( &menu.view );
 682       vg_camera_update_projection( &menu.view );
 683       vg_camera_finalize( &menu.view );
 684    }
 685    else return;
 686
 687    shader_model_menu_use();
 688    shader_model_menu_uTexMain( 1 );
 689    shader_model_menu_uPv( menu.view.mtx.pv );
 690    shader_model_menu_uPvmPrev( menu.view.mtx_prev.pv );
 691
 692    mesh_bind( &menu.mesh );
 693
 694    v4f white, blue;
 695
 696    ui_hex_to_norm( ui_colour( k_ui_fg ), white );
 697    ui_hex_to_norm( ui_colour( k_ui_orange+k_ui_brighter ), blue );
 698
 699    ent_menuitem *text_list[ 8 ];
 700    u32 text_count = 0;
 701
 702    u32 current_mat = 0xffffffff;
 703
 704    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 705       ent_menuitem *item = mdl_arritm( &menu.items, i );
 706
 707       if(   item->type == k_ent_menuitem_type_disabled ) continue;
 708       if(   item->type == k_ent_menuitem_type_page ) continue;
 709       if( !(item->groups & (0x1 << menu.page)) ) continue;
 710
 711       if(   item->type == k_ent_menuitem_type_binding ){
 712          if( text_count < vg_list_size(text_list) )
 713             text_list[ text_count ++ ] = item;
 714          else
 715             vg_fatal_error( "Text list overflow" );
 716
 717          continue;
 718       }
 719
 720       int selected = 0;
 721
 722       if( menu.loc ){
 723          if( menu.loc->type == k_ent_menuitem_type_slider ){
 724             u32 subid = menu.loc->slider.id_handle;
 725             if( item == mdl_arritm( &menu.items, mdl_entity_id_id(subid) ))
 726                selected = 1;
 727          }
 728          else{
 729             if( item == menu.loc )
 730                selected = 1;
 731          }
 732       }
 733
 734       if( item->type == k_ent_menuitem_type_visual_nocol ){
 735          shader_model_menu_uColour( (v4f){1.0f,1.0f,1.0f,1.0f} );
 736       }
 737       else{
 738          v4f colour;
 739          item->factive = vg_lerpf( item->factive, selected, rate );
 740          v4_lerp( white, blue, item->factive, colour );
 741          shader_model_menu_uColour( colour );
 742       }
 743
 744       f32 scale = 1.0f+item->factive*0.1f;
 745
 746       m4x3f mmdl;
 747       mdl_transform transform = item->transform;
 748       v3_muls( transform.s, scale, transform.s );
 749       mdl_transform_m4x3( &transform, mmdl );
 750
 751       if( item->type == k_ent_menuitem_type_toggle && item->pi32 ){
 752          u32 subid = mdl_entity_id_id( item->checkmark.id_check );
 753          ent_menuitem *subitem = mdl_arritm( &menu.items, subid );
 754
 755          v3_muladds( item->transform.co, item->checkmark.offset, scale,
 756                      subitem->transform.co );
 757
 758          subitem->fvisible = vg_lerpf( subitem->fvisible, *item->pi32, rate );
 759          v3_fill( subitem->transform.s, subitem->fvisible );
 760       }
 761       else if( item->type == k_ent_menuitem_type_slider && item->pf32 ){
 762          u32 il = mdl_entity_id_id( item->slider.id_min ),
 763              ir = mdl_entity_id_id( item->slider.id_max ),
 764              ih = mdl_entity_id_id( item->slider.id_handle );
 765          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 766                     *mr = mdl_arritm( &menu.markers, ir );
 767          ent_menuitem *handle = mdl_arritm( &menu.items, ih );
 768
 769          v3_lerp( ml->transform.co, mr->transform.co, *item->pf32,
 770                   handle->transform.co );
 771       }
 772
 773       shader_model_menu_uMdl( mmdl );
 774
 775       for( u32 j=0; j<item->submesh_count; j++ )
 776       {
 777          u32 index = item->submesh_start + j;
 778          mdl_submesh *sm = mdl_arritm( &menu.model.submeshs, index );
 779
 780          if( sm->material_id != current_mat )
 781          {
 782             mdl_material *mat = mdl_arritm( &menu.model.materials,
 783                                             sm->material_id-1 );
 784             glActiveTexture( GL_TEXTURE1 );
 785
 786             if( mat->shader == k_shader_standard )
 787             {
 788                struct shader_props_standard *props = mat->props.compiled;
 789
 790                /* FIXME: why does menu have its own texture array?? */
 791                glBindTexture( GL_TEXTURE_2D,
 792                               menu.textures[ props->tex_diffuse ] );
 793             }
 794             else
 795             {
 796                glBindTexture( GL_TEXTURE_2D, vg.tex_missing );
 797             }
 798
 799             current_mat = sm->material_id;
 800          }
 801
 802          mdl_draw_submesh( sm );
 803       }
 804    }
 805
 806    if( !text_count ) return;
 807
 808    char buf[ 128 ];
 809
 810    m4x3f local;
 811    m4x3_identity( local );
 812
 813    font3d_bind( &gui.font, k_font_shader_default, 0, NULL, &menu.view );
 814    for( u32 i=0; i<text_count; i++ ){
 815       ent_menuitem *item = text_list[ i ];
 816       m4x3f transform;
 817       mdl_transform_m4x3( &item->transform, transform );
 818
 819       u32 variant = item->binding.font_variant;
 820       menu_binding_string( buf, item->binding.pstr_bind );
 821       f32 offset = font3d_string_width( variant, buf );
 822
 823       local[3][0] = -0.5f * offset;
 824       m4x3_mul( transform, local, transform );
 825
 826       font3d_simple_draw( variant, buf, &menu.view, transform );
 827    }
 828 }
 829
 830 static void menu_binding_string( char buf[128], u32 pstr ){
 831    vg_str str;
 832    vg_strnull( &str, buf, 128 );
 833
 834    if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_jump" ) ){
 835       vg_input_string( &str, input_button_list[k_srbind_jump], 1 );
 836    }
 837    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick0" ) ){
 838       vg_strcat( &str, "SHUVIT " );
 839       vg_input_string( &str, input_button_list[k_srbind_trick0], 1 );
 840    }
 841    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick1" ) ){
 842       vg_strcat( &str, "KICKFLIP " );
 843       vg_input_string( &str, input_button_list[k_srbind_trick1], 1 );
 844    }
 845    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick2" ) ){
 846       vg_strcat( &str, "TREFLIP " );
 847       vg_input_string( &str, input_button_list[k_srbind_trick2], 1 );
 848    }
 849    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_grab" ) ){
 850       vg_input_string( &str, input_axis_list[k_sraxis_grab], 1 );
 851    }
 852    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_grab_mod" ) ){
 853       vg_input_string( &str, input_joy_list[k_srjoystick_grab], 1 );
 854    }
 855    else
 856       vg_strcat( &str, "error" );
 857 }