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    if     ( item->type == k_ent_menuitem_type_event_button ){
 221       u32 q = item->button.pstr;
 222
 223       if( MDL_CONST_PSTREQ( &menu.model, q, "quit" ) ){
 224          vg.window_should_close = 1;
 225       }
 226       else if( MDL_CONST_PSTREQ( &menu.model, q, "map" ) ){
 227          menu_close();
 228          world_map_enter();
 229       }
 230       else if( MDL_CONST_PSTREQ( &menu.model, q, "hub" ) ){
 231          if( world_static.active_instance == k_world_purpose_client ){
 232             menu_close();
 233             ent_miniworld_goback();
 234          }
 235       }
 236       else if( MDL_CONST_PSTREQ( &menu.model, q, "credits" ) ){
 237          menu.credits_open = 1;
 238       }
 239       else if( MDL_CONST_PSTREQ( &menu.model, q, "workshop" ) ){
 240          workshop_submit_command(0,NULL);
 241       }
 242       else if( MDL_CONST_PSTREQ( &menu.model, q, "engine" ) ){
 243          vg_settings_open();
 244       }
 245       else if( MDL_CONST_PSTREQ( &menu.model, q, "prem_store" ) ){
 246          if( steam_ready )
 247             SteamAPI_ISteamFriends_ActivateGameOverlayToStore(
 248                   SteamAPI_SteamFriends(), 2103940, k_EOverlayToStoreFlag_None);
 249       }
 250       else if( MDL_CONST_PSTREQ( &menu.model, q, "prem_nevermind" ) ){
 251          menu_close();
 252       }
 253       else if( MDL_CONST_PSTREQ( &menu.model, q, "starter_enter" ) )
 254       {
 255          if( network_client.auto_connect )
 256             network_client.user_intent = k_server_intent_online;
 257
 258          menu_close();
 259       }
 260    }
 261    else if( item->type == k_ent_menuitem_type_page_button )
 262    {
 263       menu_open_page( mdl_pstr( &menu.model, item->button.pstr ),
 264                       item->button.stack_behaviour );
 265    }
 266    else if( item->type == k_ent_menuitem_type_toggle )
 267    {
 268       if( item->pi32 ){
 269          *item->pi32 = *item->pi32 ^ 0x1;
 270       }
 271    }
 272 }
 273
 274 static f32 menu_slider_snap( f32 value, f32 old, f32 notch ){
 275    f32 const k_epsilon = 0.0125f;
 276
 277    if( fabsf(notch-value) < k_epsilon ){
 278       if( fabsf(notch-old) > k_epsilon ){
 279          audio_lock();
 280          audio_oneshot( &audio_ui[0], 1.0f, 0.0f );
 281          audio_unlock();
 282       }
 283
 284       return notch;
 285    }
 286    else
 287       return value;
 288 }
 289
 290 static void menu_setitem_type( ent_menuitem *item,
 291                                enum ent_menuitem_type type ){
 292    if( !item ) return;
 293    item->type = type;
 294 }
 295
 296 /*
 297  * Run from vg_gui every frame
 298  */
 299 void menu_update(void)
 300 {
 301    if( workshop_form.page != k_workshop_form_hidden ){
 302       return;
 303    }
 304
 305    int escape = button_down( k_srbind_mback );
 306    if( menu.credits_open || vg.settings_open ){
 307       if( escape ){
 308          menu.credits_open = 0;
 309
 310          if( vg.settings_open )
 311             vg_settings_close();
 312       }
 313       return;
 314    }
 315
 316    if( button_down( k_srbind_mopen ) ){
 317       if( skaterift.activity == k_skaterift_default ){
 318          skaterift.activity = k_skaterift_menu;
 319          menu.page = 0xffffffff;
 320          menu_open_page( "Main Menu", k_ent_menuitem_stack_append );
 321          return;
 322       }
 323    }
 324
 325    if( skaterift.activity != k_skaterift_menu ) return;
 326    enum menu_input_mode prev_mode = menu.input_mode;
 327
 328    /* get buttons inputs
 329     * -------------------------------------------------------------------*/
 330    int ml = button_down( k_srbind_mleft ),
 331        mr = button_down( k_srbind_mright ),
 332        mu = button_down( k_srbind_mup ),
 333        md = button_down( k_srbind_mdown ),
 334        mh = ml-mr,
 335        mv = mu-md,
 336        enter = button_down( k_srbind_maccept );
 337
 338    if( mh||mv||enter ){
 339       menu.input_mode = k_menu_input_mode_keys;
 340    }
 341
 342    /* get mouse inputs
 343     * --------------------------------------------------------------------*/
 344    menu.mouse_dist += v2_length( vg.mouse_delta ); /* TODO: Move to UI */
 345    menu.mouse_track += vg.time_frame_delta;
 346    if( menu.mouse_track > 0.1f ){
 347       menu.mouse_track = fmodf( menu.mouse_track, 0.1f );
 348       if( menu.mouse_dist > 10.0f ){
 349          menu.input_mode = k_menu_input_mode_mouse;
 350          menu.mouse_dist = 0.0f;
 351       }
 352    }
 353
 354    if( ui_clicking(UI_MOUSE_LEFT) || ui_clicking(UI_MOUSE_RIGHT) ){
 355       menu.input_mode = k_menu_input_mode_mouse;
 356    }
 357
 358    if( menu.input_mode == k_menu_input_mode_mouse ){
 359       /*
 360        * handle mouse input
 361        * ------------------------------------------------------------*/
 362       vg_ui.wants_mouse = 1;
 363
 364       /*
 365        * this raycasting is super cumbersome because all the functions were
 366        * designed for other purposes. we dont care though.
 367        */
 368       m4x4f inverse;
 369       m4x4_inv( menu.view.mtx.p, inverse );
 370       v4f coords;
 371       coords[0] = vg_ui.mouse[0];
 372       coords[1] = vg.window_y - vg_ui.mouse[1];
 373       v2_div( coords, (v2f){ vg.window_x, vg.window_y }, coords );
 374       v2_muls( coords, 2.0f, coords );
 375       v2_add( coords, (v2f){-1.0f,-1.0f}, coords );
 376       coords[2] = 1.0f;
 377       coords[3] = 1.0f;
 378       m4x4_mulv( inverse, coords, coords );
 379       v3f ray;
 380       m3x3_mulv( menu.view.transform, coords, ray );
 381       v3_normalize( ray );
 382
 383       if( menu.loc && (menu.loc->type == k_ent_menuitem_type_slider) &&
 384           ui_clicking(UI_MOUSE_LEFT) && menu.loc->pf32 ){
 385
 386          u32 il = mdl_entity_id_id( menu.loc->slider.id_min ),
 387              ir = mdl_entity_id_id( menu.loc->slider.id_max );
 388          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 389                     *mr = mdl_arritm( &menu.markers, ir );
 390
 391          v3f q2;
 392          v3_muladds( menu.view.pos, ray, 100.0f, q2 );
 393
 394          f32 s,t;
 395          v3f c1, c2;
 396          v3f p1, q1, v0;
 397          v3_sub( mr->transform.co, ml->transform.co, v0 );
 398          v3_muladds( ml->transform.co, v0, -1.0f, p1 );
 399          v3_muladds( mr->transform.co, v0,  1.0f, q1 );
 400          closest_segment_segment( p1, q1, menu.view.pos, q2, &s,&t, c1,c2 );
 401
 402          s-=(1.0f/3.0f);
 403          s/=(1.0f/3.0f);
 404
 405          if( ui_click_down(UI_MOUSE_LEFT) ){
 406             menu.slider_offset = *menu.loc->pf32 - s;
 407          }
 408
 409          f32 newvalue = vg_clampf( s+menu.slider_offset, 0.0f, 1.0f );
 410
 411          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.00f );
 412          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 1.00f );
 413          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.25f );
 414          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.50f );
 415          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.75f );
 416
 417          *menu.loc->pf32 = newvalue;
 418          return;
 419       }
 420
 421       ent_menuitem *hit_item = NULL;
 422
 423       for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 424          ent_menuitem *item = mdl_arritm( &menu.items, i );
 425
 426          if( item->type == k_ent_menuitem_type_page ) continue;
 427          if( (item->type == k_ent_menuitem_type_visual) ||
 428              (item->type == k_ent_menuitem_type_visual_nocol) ) continue;
 429          if( item->type == k_ent_menuitem_type_binding ) continue;
 430          if( !(item->groups & (0x1<<menu.page)) ) continue;
 431
 432          ent_menuitem *ray_item = item;
 433
 434          if( item->type == k_ent_menuitem_type_slider ){
 435             u32 subtarget = mdl_entity_id_id( item->slider.id_handle );
 436             ray_item = mdl_arritm( &menu.items, subtarget );
 437          }
 438
 439          v3f local_ray,
 440              local_co;
 441
 442          m4x3f inverse_mtx;
 443          mdl_transform_m4x3( &ray_item->transform, inverse_mtx );
 444          m4x3_invert_full( inverse_mtx, inverse_mtx );
 445
 446          m4x3_mulv( inverse_mtx, menu.view.transform[3], local_co );
 447          m3x3_mulv( inverse_mtx, ray, local_ray );
 448          v3_normalize( local_ray );
 449
 450          local_ray[0] = 1.0f/local_ray[0];
 451          local_ray[1] = 1.0f/local_ray[1];
 452          local_ray[2] = 1.0f/local_ray[2];
 453
 454          for( u32 j=0; j<ray_item->submesh_count; j++ ){
 455             mdl_submesh *sm = mdl_arritm( &menu.model.submeshs,
 456                                            ray_item->submesh_start + j );
 457             if( ray_aabb1( sm->bbx, local_co, local_ray, 1000.0f ) ){
 458                hit_item = item;
 459                break;
 460             }
 461          }
 462       }
 463
 464       if( hit_item != menu.loc ){
 465          menu.loc = hit_item;
 466       }
 467
 468       if( escape ){
 469          menu_back_page();
 470       }
 471       else if( menu.loc ){
 472          if( ui_click_down( UI_MOUSE_LEFT ) ){
 473             menu_trigger_item( menu.loc );
 474          }
 475       }
 476    }
 477    else if( menu.input_mode == k_menu_input_mode_keys ){
 478       /*
 479        * handle button input
 480        * ------------------------------------------------------------*/
 481       if( (prev_mode != k_menu_input_mode_keys) && !menu.loc ){
 482          for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 483             ent_menuitem *item = mdl_arritm( &menu.items, i );
 484
 485             if( (item->type != k_ent_menuitem_type_page) &&
 486                 (item->type != k_ent_menuitem_type_visual) &&
 487                 (item->type != k_ent_menuitem_type_visual_nocol) &&
 488                 (item->groups & (0x1<<menu.page)) ){
 489                menu.loc = item;
 490             }
 491          }
 492       }
 493
 494       if( !menu.loc ) vg_fatal_error( "No location\n" );
 495
 496       if( menu.loc->type == k_ent_menuitem_type_slider && menu.loc->pf32 ){
 497          f32 move = 0.0f;
 498
 499          if( vg_input.display_input_method == k_input_method_controller ){
 500             move += button_press( k_srbind_mright );
 501             move -= button_press( k_srbind_mleft );
 502          }
 503          else{
 504             move += axis_state( k_sraxis_mbrowse_h );
 505          }
 506
 507          move *= vg.time_frame_delta;
 508          *menu.loc->pf32 = vg_clampf( *menu.loc->pf32 + move, 0.0f, 1.0f );
 509
 510          mh = 0;
 511       }
 512
 513       if( escape ){
 514          menu_back_page();
 515       }
 516       else if( enter ){
 517          menu_trigger_item( menu.loc );
 518       }
 519       else if( mh||mv ){
 520          v3f opt;
 521          v3_zero( opt );
 522          f32 best = 0.707f;
 523          ent_menuitem *nextpos = NULL;
 524
 525          opt[0] += mh;
 526          opt[2] += mv;
 527          mdl_transform_vector( &menu.cam->transform, opt, opt );
 528
 529          for( u32 i=0; i<4; i++ ){
 530             u32 id = menu.loc->id_links[i];
 531             if( !id ) continue;
 532             u32 index = mdl_entity_id_id( id );
 533
 534             ent_menuitem *other = mdl_arritm( &menu.items, index );
 535             v3f delta;
 536             v3_sub( menu.loc->transform.co, other->transform.co, delta );
 537             v3_normalize( delta );
 538
 539             f32 score = v3_dot( delta, opt );
 540             if( score > best ){
 541                best = score;
 542                nextpos = other;
 543             }
 544          }
 545
 546          if( nextpos ){
 547             menu.loc = nextpos;
 548          }
 549       }
 550    }
 551
 552    menu_setitem_type( menu.ctr_deck, k_ent_menuitem_type_disabled );
 553    menu_setitem_type( menu.ctr_ps, k_ent_menuitem_type_disabled );
 554    menu_setitem_type( menu.ctr_kbm, k_ent_menuitem_type_disabled );
 555    menu_setitem_type( menu.ctr_xbox, k_ent_menuitem_type_disabled );
 556    menu_setitem_type( menu.ctr_steam, k_ent_menuitem_type_disabled );
 557
 558    if( vg_input.display_input_method == k_input_method_kbm )
 559       menu_setitem_type( menu.ctr_kbm, k_ent_menuitem_type_visual_nocol );
 560    else{
 561       if( vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS3 ||
 562           vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS4 ||
 563           vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS5 ){
 564          menu_setitem_type( menu.ctr_ps, k_ent_menuitem_type_visual_nocol );
 565       }
 566       else {
 567          menu_setitem_type( menu.ctr_xbox, k_ent_menuitem_type_visual_nocol );
 568       }
 569       /* FIXME: Steam/Deck controller detection? */
 570    }
 571 }
 572
 573 static void menu_binding_string( char buf[128], u32 pstr );
 574
 575 /*
 576  * Run from vg_gui when active
 577  */
 578 void menu_render(void)
 579 {
 580    glEnable(GL_BLEND);
 581    glDisable(GL_DEPTH_TEST);
 582    glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
 583    glBlendEquation(GL_FUNC_ADD);
 584
 585    shader_blitcolour_use();
 586    v4f colour;
 587    ui_hex_to_norm( ui_colour( k_ui_bg+3 ), colour );
 588    colour[3] = 0.5f;
 589
 590    shader_blitcolour_uColour( colour );
 591    render_fsquad();
 592
 593    if( (workshop_form.page != k_workshop_form_hidden) ||
 594        (vg_ui.focused_control_type != k_ui_control_none) ){
 595       return;
 596    }
 597
 598    if( vg.settings_open )
 599       return;
 600
 601    if( menu.credits_open ){
 602       ui_rect panel = { 0,0, 460, 400 },
 603               screen = { 0,0, vg.window_x,vg.window_y };
 604       ui_rect_center( screen, panel );
 605       ui_fill( panel, ui_colour(k_ui_bg) );
 606       ui_outline( panel, 1, ui_colour(k_ui_fg), 0 );
 607       ui_rect_pad( panel, (ui_px[]){8,8} );
 608
 609       ui_rect title;
 610       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 611       ui_text( title, "Skate Rift - Credits", 2, k_ui_align_middle_center, 0 );
 612       ui_split( panel, k_ui_axis_h, 28, 0, title, panel );
 613       ui_text( title, "Mt.Zero Software", 1, k_ui_align_middle_center, 0 );
 614
 615       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 616       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 617       ui_text( title, "Free Software", 2, k_ui_align_middle_center, 0 );
 618
 619       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 620       ui_text( panel,
 621             "Sam Lantinga       - SDL2 - libsdl.org\n"
 622             "Hunter WB          - Anyascii\n"
 623             "David Herberth     - GLAD\n"
 624             "Dominic Szablewski - QOI - qoiformat.org\n"
 625             "Sean Barrett       - stb_image,stb_vorbis,stb_include\n"
 626             "Khronos Group      - OpenGL\n"
 627             , 1, k_ui_align_left, 0 );
 628       return;
 629    }
 630
 631    glEnable( GL_DEPTH_TEST );
 632    glDisable( GL_BLEND );
 633
 634    f32 rate = vg.time_frame_delta * 12.0f;
 635
 636    if( menu.cam ){
 637       vg_camera target;
 638
 639       target.fov = menu.cam->fov;
 640       v3_copy( menu.cam->transform.co, target.pos );
 641
 642       v3f v0;
 643       mdl_transform_vector( &menu.cam->transform, (v3f){0.0f,-1.0f,0.0f}, v0 );
 644       v3_angles( v0, target.angles );
 645
 646       vg_camera_lerp( &menu.view, &target, rate, &menu.view );
 647
 648       menu.view.farz = 150.0f;
 649       menu.view.nearz = 0.01f;
 650
 651       vg_camera_update_transform( &menu.view );
 652       vg_camera_update_view( &menu.view );
 653       vg_camera_update_projection( &menu.view );
 654       vg_camera_finalize( &menu.view );
 655    }
 656    else return;
 657
 658    shader_model_menu_use();
 659    shader_model_menu_uTexMain( 1 );
 660    shader_model_menu_uPv( menu.view.mtx.pv );
 661    shader_model_menu_uPvmPrev( menu.view.mtx_prev.pv );
 662
 663    mesh_bind( &menu.mesh );
 664
 665    v4f white, blue;
 666
 667    ui_hex_to_norm( ui_colour( k_ui_fg ), white );
 668    ui_hex_to_norm( ui_colour( k_ui_orange+k_ui_brighter ), blue );
 669
 670    ent_menuitem *text_list[ 8 ];
 671    u32 text_count = 0;
 672
 673    u32 current_mat = 0xffffffff;
 674
 675    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 676       ent_menuitem *item = mdl_arritm( &menu.items, i );
 677
 678       if(   item->type == k_ent_menuitem_type_disabled ) continue;
 679       if(   item->type == k_ent_menuitem_type_page ) continue;
 680       if( !(item->groups & (0x1 << menu.page)) ) continue;
 681
 682       if(   item->type == k_ent_menuitem_type_binding ){
 683          if( text_count < vg_list_size(text_list) )
 684             text_list[ text_count ++ ] = item;
 685          else
 686             vg_fatal_error( "Text list overflow" );
 687
 688          continue;
 689       }
 690
 691       int selected = 0;
 692
 693       if( menu.loc ){
 694          if( menu.loc->type == k_ent_menuitem_type_slider ){
 695             u32 subid = menu.loc->slider.id_handle;
 696             if( item == mdl_arritm( &menu.items, mdl_entity_id_id(subid) ))
 697                selected = 1;
 698          }
 699          else{
 700             if( item == menu.loc )
 701                selected = 1;
 702          }
 703       }
 704
 705       if( item->type == k_ent_menuitem_type_visual_nocol ){
 706          shader_model_menu_uColour( (v4f){1.0f,1.0f,1.0f,1.0f} );
 707       }
 708       else{
 709          v4f colour;
 710          item->factive = vg_lerpf( item->factive, selected, rate );
 711          v4_lerp( white, blue, item->factive, colour );
 712          shader_model_menu_uColour( colour );
 713       }
 714
 715       f32 scale = 1.0f+item->factive*0.1f;
 716
 717       m4x3f mmdl;
 718       mdl_transform transform = item->transform;
 719       v3_muls( transform.s, scale, transform.s );
 720       mdl_transform_m4x3( &transform, mmdl );
 721
 722       if( item->type == k_ent_menuitem_type_toggle && item->pi32 ){
 723          u32 subid = mdl_entity_id_id( item->checkmark.id_check );
 724          ent_menuitem *subitem = mdl_arritm( &menu.items, subid );
 725
 726          v3_muladds( item->transform.co, item->checkmark.offset, scale,
 727                      subitem->transform.co );
 728
 729          subitem->fvisible = vg_lerpf( subitem->fvisible, *item->pi32, rate );
 730          v3_fill( subitem->transform.s, subitem->fvisible );
 731       }
 732       else if( item->type == k_ent_menuitem_type_slider && item->pf32 ){
 733          u32 il = mdl_entity_id_id( item->slider.id_min ),
 734              ir = mdl_entity_id_id( item->slider.id_max ),
 735              ih = mdl_entity_id_id( item->slider.id_handle );
 736          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 737                     *mr = mdl_arritm( &menu.markers, ir );
 738          ent_menuitem *handle = mdl_arritm( &menu.items, ih );
 739
 740          v3_lerp( ml->transform.co, mr->transform.co, *item->pf32,
 741                   handle->transform.co );
 742       }
 743
 744       shader_model_menu_uMdl( mmdl );
 745
 746       for( u32 j=0; j<item->submesh_count; j++ )
 747       {
 748          u32 index = item->submesh_start + j;
 749          mdl_submesh *sm = mdl_arritm( &menu.model.submeshs, index );
 750
 751          if( sm->material_id != current_mat )
 752          {
 753             mdl_material *mat = mdl_arritm( &menu.model.materials,
 754                                             sm->material_id-1 );
 755             glActiveTexture( GL_TEXTURE1 );
 756
 757             if( mat->shader == k_shader_standard )
 758             {
 759                struct shader_props_standard *props = mat->props.compiled;
 760
 761                /* FIXME: why does menu have its own texture array?? */
 762                glBindTexture( GL_TEXTURE_2D,
 763                               menu.textures[ props->tex_diffuse ] );
 764             }
 765             else
 766             {
 767                glBindTexture( GL_TEXTURE_2D, vg.tex_missing );
 768             }
 769
 770             current_mat = sm->material_id;
 771          }
 772
 773          mdl_draw_submesh( sm );
 774       }
 775    }
 776
 777    if( !text_count ) return;
 778
 779    char buf[ 128 ];
 780
 781    m4x3f local;
 782    m4x3_identity( local );
 783
 784    font3d_bind( &gui.font, k_font_shader_default, 0, NULL, &menu.view );
 785    for( u32 i=0; i<text_count; i++ ){
 786       ent_menuitem *item = text_list[ i ];
 787       m4x3f transform;
 788       mdl_transform_m4x3( &item->transform, transform );
 789
 790       u32 variant = item->binding.font_variant;
 791       menu_binding_string( buf, item->binding.pstr_bind );
 792       f32 offset = font3d_string_width( variant, buf );
 793
 794       local[3][0] = -0.5f * offset;
 795       m4x3_mul( transform, local, transform );
 796
 797       font3d_simple_draw( variant, buf, &menu.view, transform );
 798    }
 799 }
 800
 801 static void menu_binding_string( char buf[128], u32 pstr ){
 802    vg_str str;
 803    vg_strnull( &str, buf, 128 );
 804
 805    if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_jump" ) ){
 806       vg_input_string( &str, input_button_list[k_srbind_jump], 1 );
 807    }
 808    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick0" ) ){
 809       vg_strcat( &str, "SHUVIT " );
 810       vg_input_string( &str, input_button_list[k_srbind_trick0], 1 );
 811    }
 812    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick1" ) ){
 813       vg_strcat( &str, "KICKFLIP " );
 814       vg_input_string( &str, input_button_list[k_srbind_trick1], 1 );
 815    }
 816    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick2" ) ){
 817       vg_strcat( &str, "TREFLIP " );
 818       vg_input_string( &str, input_button_list[k_srbind_trick2], 1 );
 819    }
 820    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_grab" ) ){
 821       vg_input_string( &str, input_axis_list[k_sraxis_grab], 1 );
 822    }
 823    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_grab_mod" ) ){
 824       vg_input_string( &str, input_joy_list[k_srjoystick_grab], 1 );
 825    }
 826    else
 827       vg_strcat( &str, "error" );
 828 }