menu.h

   1 #ifndef MENU_H
   2 #define MENU_H
   3
   4 #include "common.h"
   5 #include "model.h"
   6 #include "world_render.h"
   7 #include "player.h"
   8 #include "shaders/model_menu.h"
   9 #include "audio.h"
  10 #include "input.h"
  11 #include "workshop.h"
  12 #include "respawn.h"
  13 #include "gui.h"
  14 #include "ent_miniworld.h"
  15
  16 #define MENU_STACK_SIZE 8
  17
  18 struct {
  19    int credits_open;
  20    int disable_open;
  21
  22    u32 page, /* current page index */
  23        page_depth,
  24        controls_page_id;
  25
  26    ent_menuitem *ctr_kbm,
  27                 *ctr_deck,
  28                 *ctr_ps,
  29                 *ctr_steam,
  30                 *ctr_xbox;
  31
  32    enum menu_input_mode{
  33       k_menu_input_mode_keys,
  34       k_menu_input_mode_mouse
  35    }
  36    input_mode;
  37    f32 mouse_track, mouse_dist;  /* used for waking up mouse */
  38    f32 slider_offset;
  39
  40    struct page_stack_frame {
  41       u32 page;
  42       ent_menuitem *loc;
  43       ent_camera *cam;
  44    }
  45    page_stack[ MENU_STACK_SIZE ];
  46
  47    ent_menuitem *loc;
  48    ent_camera   *cam;
  49    camera        view;
  50
  51    mdl_context model;
  52    GLuint *textures;
  53    glmesh mesh;
  54
  55    mdl_array_ptr items, markers, cameras;
  56 }
  57 static menu;
  58
  59 /*
  60  * Attaches memory locations to the various items in the menu
  61  */
  62 static void menu_link(void){
  63    /* link data locations */
  64    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
  65       ent_menuitem *item = mdl_arritm( &menu.items, i );
  66
  67       if( item->type == k_ent_menuitem_type_toggle ||
  68           item->type == k_ent_menuitem_type_slider ){
  69
  70          const char *name;
  71
  72          if( item->type == k_ent_menuitem_type_slider )
  73             name = mdl_pstr( &menu.model, item->slider.pstr_data );
  74          else
  75             name = mdl_pstr( &menu.model, item->checkmark.pstr_data );
  76          vg_var *var = vg_console_match_var( name );
  77
  78          if( var ){
  79             if( ( item->type == k_ent_menuitem_type_slider &&
  80                   var->data_type != k_var_dtype_f32
  81                 ) ||
  82                 ( item->type == k_ent_menuitem_type_toggle &&!
  83                   ( var->data_type == k_var_dtype_i32 ||
  84                     var->data_type == k_var_dtype_u32
  85                   )
  86                )
  87             ){
  88                vg_error( "Cannot hook to data %s(%p), because it is type %d.\n",
  89                            name, var, var->data_type );
  90                item->pvoid = NULL;
  91             }
  92             else{
  93                item->pvoid = var->data;
  94             }
  95          }
  96          else{
  97             vg_error( "No data named %s\n", name );
  98             item->pvoid = NULL;
  99          }
 100       }
 101       else{
 102          item->pvoid = NULL;
 103       }
 104    }
 105
 106    /* link controllers */
 107    menu.ctr_deck = NULL;
 108    menu.ctr_kbm = NULL;
 109    menu.ctr_ps = NULL;
 110    menu.ctr_steam = NULL;
 111    menu.ctr_xbox = NULL;
 112
 113    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 114       ent_menuitem *item = mdl_arritm( &menu.items, i );
 115
 116       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "deck" ) )
 117          menu.ctr_deck = item;
 118       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "kbm" ) )
 119          menu.ctr_kbm = item;
 120       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "ps" ) )
 121          menu.ctr_ps = item;
 122       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "steam" ) )
 123          menu.ctr_steam = item;
 124       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "xbox" ) )
 125          menu.ctr_xbox = item;
 126    }
 127 }
 128
 129 static void menu_close(void){
 130    skaterift.activity = k_skaterift_default;
 131    menu.page_depth = 0;
 132    menu.page = 0xffffffff;
 133    srinput.state = k_input_state_resume;
 134 }
 135
 136 static void menu_init(void){
 137    void *alloc = vg_mem.rtmemory;
 138
 139    mdl_open( &menu.model, "models/rs_menu.mdl", alloc );
 140    mdl_load_metadata_block( &menu.model, alloc );
 141
 142    vg_linear_clear( vg_mem.scratch );
 143
 144    MDL_LOAD_ARRAY( &menu.model, &menu.items,   ent_menuitem, alloc );
 145    MDL_LOAD_ARRAY( &menu.model, &menu.markers, ent_marker, alloc );
 146    MDL_LOAD_ARRAY( &menu.model, &menu.cameras, ent_camera, alloc );
 147
 148    u32 count = mdl_arrcount( &menu.model.textures );
 149    menu.textures = vg_linear_alloc(alloc,vg_align8(sizeof(GLuint)*(count+1)));
 150    menu.textures[0] = vg.tex_missing;
 151
 152    mdl_async_load_glmesh( &menu.model, &menu.mesh, NULL );
 153
 154    for( u32 i=0; i<count; i ++ ){
 155       vg_linear_clear( vg_mem.scratch );
 156       menu.textures[i+1] = vg.tex_missing;
 157
 158       mdl_texture *tex = mdl_arritm( &menu.model.textures, i );
 159       void *data = vg_linear_alloc( vg_mem.scratch, tex->file.pack_size );
 160       mdl_fread_pack_file( &menu.model, &tex->file, data );
 161       vg_tex2d_load_qoi_async( data, tex->file.pack_size,
 162                                VG_TEX2D_LINEAR|VG_TEX2D_CLAMP,
 163                                &menu.textures[i+1] );
 164    }
 165
 166    mdl_close( &menu.model );
 167    shader_model_menu_register();
 168 }
 169
 170 /*
 171  * Drop back a page until we're at the bottom which then we jus quit
 172  */
 173 static void menu_back_page(void){
 174    menu.page_depth --;
 175    if( menu.page_depth == 0 ){
 176       menu_close();
 177    }
 178    else{
 179       menu.page = menu.page_stack[ menu.page_depth ].page;
 180       menu.cam = menu.page_stack[ menu.page_depth ].cam;
 181
 182       if( menu.input_mode == k_menu_input_mode_keys )
 183          menu.loc = menu.page_stack[ menu.page_depth ].loc;
 184       else menu.loc = NULL;
 185    }
 186 }
 187
 188 /*
 189  * Open page to the string identifier
 190  */
 191 static void menu_open_page( const char *name,
 192                             enum ent_menuitem_stack_behaviour stackmode ){
 193    srinput.state = k_input_state_resume;
 194    if( stackmode == k_ent_menuitem_stack_append ){
 195       if( menu.page_depth >= MENU_STACK_SIZE )
 196          vg_fatal_error( "Stack overflow\n" );
 197    }
 198    else{
 199       if( menu.page_depth == 0 )
 200          vg_fatal_error( "Stack underflow\n" );
 201    }
 202
 203    u32 hash = vg_strdjb2( name );
 204    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 205       ent_menuitem *item = mdl_arritm( &menu.items, i );
 206
 207       if( item->type == k_ent_menuitem_type_page ){
 208          if( mdl_pstreq( &menu.model, item->page.pstr_name, name, hash ) ){
 209             u32 new_page = __builtin_ctz( item->groups );
 210
 211             if( new_page == menu.page ){
 212                if( stackmode != k_ent_menuitem_stack_replace )
 213                   menu_back_page();
 214             }
 215             else{
 216                menu.page_stack[ menu.page_depth ].page = menu.page;
 217                menu.page_stack[ menu.page_depth ].cam = menu.cam;
 218                menu.page_stack[ menu.page_depth ].loc = menu.loc;
 219
 220                if( stackmode == k_ent_menuitem_stack_append )
 221                   menu.page_depth ++;
 222
 223                menu.page = __builtin_ctz( item->groups );
 224
 225                if( menu.input_mode == k_menu_input_mode_keys ){
 226                   if( item->page.id_entrypoint ){
 227                      u32 id = mdl_entity_id_id( item->page.id_entrypoint );
 228                      menu.loc = mdl_arritm( &menu.items, id );
 229                   }
 230                }
 231
 232                if( item->page.id_viewpoint ){
 233                   u32 id = mdl_entity_id_id( item->page.id_viewpoint );
 234                   menu.cam = mdl_arritm( &menu.cameras, id );
 235                }
 236             }
 237             return;
 238          }
 239       }
 240    }
 241 }
 242
 243 /*
 244  * activate a pressable type
 245  */
 246 static void menu_trigger_item( ent_menuitem *item ){
 247    if     ( item->type == k_ent_menuitem_type_event_button ){
 248       u32 q = item->button.pstr;
 249
 250       if( MDL_CONST_PSTREQ( &menu.model, q, "quit" ) ){
 251          vg.window_should_close = 1;
 252       }
 253
 254       else if( MDL_CONST_PSTREQ( &menu.model, q, "map" ) ){
 255
 256          menu_close();
 257          respawn_begin_chooser();
 258       }
 259       else if( MDL_CONST_PSTREQ( &menu.model, q, "hub" ) ){
 260          if( world_static.active_instance == k_world_purpose_client ){
 261             menu_close();
 262             ent_miniworld_goback();
 263          }
 264       }
 265       else if( MDL_CONST_PSTREQ( &menu.model, q, "credits" ) ){
 266          menu.credits_open = 1;
 267       }
 268       else if( MDL_CONST_PSTREQ( &menu.model, q, "workshop" ) ){
 269          workshop_submit_command(0,NULL);
 270       }
 271       else if( MDL_CONST_PSTREQ( &menu.model, q, "prem_store" ) ){
 272          if( steam_ready )
 273             SteamAPI_ISteamFriends_ActivateGameOverlayToStore(
 274                   SteamAPI_SteamFriends(), 2103940, k_EOverlayToStoreFlag_None);
 275       }
 276       else if( MDL_CONST_PSTREQ( &menu.model, q, "prem_nevermind" ) ){
 277          menu_close();
 278       }
 279    }
 280    else if( item->type == k_ent_menuitem_type_page_button ){
 281       menu_open_page( mdl_pstr( &menu.model, item->button.pstr ),
 282                       item->button.stack_behaviour );
 283    }
 284    else if( item->type == k_ent_menuitem_type_toggle ){
 285       if( item->pi32 ){
 286          *item->pi32 = *item->pi32 ^ 0x1;
 287       }
 288    }
 289 }
 290
 291 static f32 menu_slider_snap( f32 value, f32 old, f32 notch ){
 292    f32 const k_epsilon = 0.0125f;
 293
 294    if( fabsf(notch-value) < k_epsilon ){
 295       if( fabsf(notch-old) > k_epsilon ){
 296          audio_lock();
 297          audio_oneshot( &audio_ui[0], 1.0f, 0.0f );
 298          audio_unlock();
 299       }
 300
 301       return notch;
 302    }
 303    else
 304       return value;
 305 }
 306
 307 static void menu_setitem_type( ent_menuitem *item,
 308                                enum ent_menuitem_type type ){
 309    if( !item ) return;
 310    item->type = type;
 311 }
 312
 313 /*
 314  * Run from vg_gui every frame
 315  */
 316 static void menu_update(void){
 317    if( workshop_form.page != k_workshop_form_hidden ){
 318       return;
 319    }
 320
 321    int escape = button_down( k_srbind_mback );
 322    if( menu.credits_open ){
 323       if( escape ){
 324          menu.credits_open = 0;
 325       }
 326       return;
 327    }
 328
 329    if( button_down( k_srbind_mopen ) ){
 330       if( skaterift.activity == k_skaterift_default ){
 331          skaterift.activity = k_skaterift_menu;
 332          menu.page = 0xffffffff;
 333          menu_open_page( "Main Menu", k_ent_menuitem_stack_append );
 334          return;
 335       }
 336    }
 337
 338    if( skaterift.activity != k_skaterift_menu ) return;
 339    enum menu_input_mode prev_mode = menu.input_mode;
 340
 341    /* get buttons inputs
 342     * -------------------------------------------------------------------*/
 343    int ml = button_down( k_srbind_mleft ),
 344        mr = button_down( k_srbind_mright ),
 345        mu = button_down( k_srbind_mup ),
 346        md = button_down( k_srbind_mdown ),
 347        mh = ml-mr,
 348        mv = mu-md,
 349        enter = button_down( k_srbind_maccept );
 350
 351    if( mh||mv||enter ){
 352       menu.input_mode = k_menu_input_mode_keys;
 353    }
 354
 355    /* get mouse inputs
 356     * --------------------------------------------------------------------*/
 357    menu.mouse_dist += v2_length( vg.mouse_delta ); /* TODO: Move to UI */
 358    menu.mouse_track += vg.time_frame_delta;
 359    if( menu.mouse_track > 0.1f ){
 360       menu.mouse_track = fmodf( menu.mouse_track, 0.1f );
 361       if( menu.mouse_dist > 10.0f ){
 362          menu.input_mode = k_menu_input_mode_mouse;
 363          menu.mouse_dist = 0.0f;
 364       }
 365    }
 366
 367    if( ui_clicking(UI_MOUSE_LEFT) || ui_clicking(UI_MOUSE_RIGHT) ){
 368       menu.input_mode = k_menu_input_mode_mouse;
 369    }
 370
 371    if( menu.input_mode == k_menu_input_mode_mouse ){
 372       /*
 373        * handle mouse input
 374        * ------------------------------------------------------------*/
 375       vg_ui.wants_mouse = 1;
 376
 377       /*
 378        * this raycasting is super cumbersome because all the functions were
 379        * designed for other purposes. we dont care though.
 380        */
 381       m4x4f inverse;
 382       m4x4_inv( menu.view.mtx.p, inverse );
 383       v4f coords;
 384       coords[0] = vg_ui.mouse[0];
 385       coords[1] = vg.window_y - vg_ui.mouse[1];
 386       v2_div( coords, (v2f){ vg.window_x, vg.window_y }, coords );
 387       v2_muls( coords, 2.0f, coords );
 388       v2_add( coords, (v2f){-1.0f,-1.0f}, coords );
 389       coords[2] = 1.0f;
 390       coords[3] = 1.0f;
 391       m4x4_mulv( inverse, coords, coords );
 392       v3f ray;
 393       m3x3_mulv( menu.view.transform, coords, ray );
 394       v3_normalize( ray );
 395
 396       if( menu.loc && (menu.loc->type == k_ent_menuitem_type_slider) &&
 397           ui_clicking(UI_MOUSE_LEFT) && menu.loc->pf32 ){
 398
 399          u32 il = mdl_entity_id_id( menu.loc->slider.id_min ),
 400              ir = mdl_entity_id_id( menu.loc->slider.id_max );
 401          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 402                     *mr = mdl_arritm( &menu.markers, ir );
 403
 404          v3f q2;
 405          v3_muladds( menu.view.pos, ray, 100.0f, q2 );
 406
 407          f32 s,t;
 408          v3f c1, c2;
 409          v3f p1, q1, v0;
 410          v3_sub( mr->transform.co, ml->transform.co, v0 );
 411          v3_muladds( ml->transform.co, v0, -1.0f, p1 );
 412          v3_muladds( mr->transform.co, v0,  1.0f, q1 );
 413          closest_segment_segment( p1, q1, menu.view.pos, q2, &s,&t, c1,c2 );
 414
 415          s-=(1.0f/3.0f);
 416          s/=(1.0f/3.0f);
 417
 418          if( ui_click_down(UI_MOUSE_LEFT) ){
 419             menu.slider_offset = *menu.loc->pf32 - s;
 420          }
 421
 422          f32 newvalue = vg_clampf( s+menu.slider_offset, 0.0f, 1.0f );
 423
 424          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.00f );
 425          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 1.00f );
 426          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.25f );
 427          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.50f );
 428          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.75f );
 429
 430          *menu.loc->pf32 = newvalue;
 431          return;
 432       }
 433
 434       ent_menuitem *hit_item = NULL;
 435
 436       for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 437          ent_menuitem *item = mdl_arritm( &menu.items, i );
 438
 439          if( item->type == k_ent_menuitem_type_page ) continue;
 440          if( (item->type == k_ent_menuitem_type_visual) ||
 441              (item->type == k_ent_menuitem_type_visual_nocol) ) continue;
 442          if( item->type == k_ent_menuitem_type_binding ) continue;
 443          if( !(item->groups & (0x1<<menu.page)) ) continue;
 444
 445          ent_menuitem *ray_item = item;
 446
 447          if( item->type == k_ent_menuitem_type_slider ){
 448             u32 subtarget = mdl_entity_id_id( item->slider.id_handle );
 449             ray_item = mdl_arritm( &menu.items, subtarget );
 450          }
 451
 452          v3f local_ray,
 453              local_co;
 454
 455          m4x3f inverse_mtx;
 456          mdl_transform_m4x3( &ray_item->transform, inverse_mtx );
 457          m4x3_invert_full( inverse_mtx, inverse_mtx );
 458
 459          m4x3_mulv( inverse_mtx, menu.view.transform[3], local_co );
 460          m3x3_mulv( inverse_mtx, ray, local_ray );
 461          v3_normalize( local_ray );
 462
 463          local_ray[0] = 1.0f/local_ray[0];
 464          local_ray[1] = 1.0f/local_ray[1];
 465          local_ray[2] = 1.0f/local_ray[2];
 466
 467          for( u32 j=0; j<ray_item->submesh_count; j++ ){
 468             mdl_submesh *sm = mdl_arritm( &menu.model.submeshs,
 469                                            ray_item->submesh_start + j );
 470             if( ray_aabb1( sm->bbx, local_co, local_ray, 1000.0f ) ){
 471                hit_item = item;
 472                break;
 473             }
 474          }
 475       }
 476
 477       if( hit_item != menu.loc ){
 478          menu.loc = hit_item;
 479       }
 480
 481       if( escape ){
 482          menu_back_page();
 483       }
 484       else if( menu.loc ){
 485          if( ui_click_down( UI_MOUSE_LEFT ) ){
 486             menu_trigger_item( menu.loc );
 487          }
 488       }
 489    }
 490    else if( menu.input_mode == k_menu_input_mode_keys ){
 491       /*
 492        * handle button input
 493        * ------------------------------------------------------------*/
 494       if( (prev_mode != k_menu_input_mode_keys) && !menu.loc ){
 495          for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 496             ent_menuitem *item = mdl_arritm( &menu.items, i );
 497
 498             if( (item->type != k_ent_menuitem_type_page) &&
 499                 (item->type != k_ent_menuitem_type_visual) &&
 500                 (item->type != k_ent_menuitem_type_visual_nocol) &&
 501                 (item->groups & (0x1<<menu.page)) ){
 502                menu.loc = item;
 503             }
 504          }
 505       }
 506
 507       if( !menu.loc ) vg_fatal_error( "No location\n" );
 508
 509       if( menu.loc->type == k_ent_menuitem_type_slider && menu.loc->pf32 ){
 510          f32 move = 0.0f;
 511
 512          if( vg_input.display_input_method == k_input_method_controller ){
 513             move += button_press( k_srbind_mright );
 514             move -= button_press( k_srbind_mleft );
 515          }
 516          else{
 517             move += axis_state( k_sraxis_mbrowse_h );
 518          }
 519
 520          move *= vg.time_frame_delta;
 521          *menu.loc->pf32 = vg_clampf( *menu.loc->pf32 + move, 0.0f, 1.0f );
 522
 523          mh = 0;
 524       }
 525
 526       if( escape ){
 527          menu_back_page();
 528       }
 529       else if( enter ){
 530          menu_trigger_item( menu.loc );
 531       }
 532       else if( mh||mv ){
 533          v3f opt;
 534          v3_zero( opt );
 535          f32 best = 0.707f;
 536          ent_menuitem *nextpos = NULL;
 537
 538          opt[0] += mh;
 539          opt[2] += mv;
 540          mdl_transform_vector( &menu.cam->transform, opt, opt );
 541
 542          for( u32 i=0; i<4; i++ ){
 543             u32 id = menu.loc->id_links[i];
 544             if( !id ) continue;
 545             u32 index = mdl_entity_id_id( id );
 546
 547             ent_menuitem *other = mdl_arritm( &menu.items, index );
 548             v3f delta;
 549             v3_sub( menu.loc->transform.co, other->transform.co, delta );
 550             v3_normalize( delta );
 551
 552             f32 score = v3_dot( delta, opt );
 553             if( score > best ){
 554                best = score;
 555                nextpos = other;
 556             }
 557          }
 558
 559          if( nextpos ){
 560             menu.loc = nextpos;
 561          }
 562       }
 563    }
 564
 565    menu_setitem_type( menu.ctr_deck, k_ent_menuitem_type_disabled );
 566    menu_setitem_type( menu.ctr_ps, k_ent_menuitem_type_disabled );
 567    menu_setitem_type( menu.ctr_kbm, k_ent_menuitem_type_disabled );
 568    menu_setitem_type( menu.ctr_xbox, k_ent_menuitem_type_disabled );
 569    menu_setitem_type( menu.ctr_steam, k_ent_menuitem_type_disabled );
 570
 571    if( vg_input.display_input_method == k_input_method_kbm )
 572       menu_setitem_type( menu.ctr_kbm, k_ent_menuitem_type_visual_nocol );
 573    else{
 574       if( vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS3 ||
 575           vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS4 ||
 576           vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS5 ){
 577          menu_setitem_type( menu.ctr_ps, k_ent_menuitem_type_visual_nocol );
 578       }
 579       else {
 580          menu_setitem_type( menu.ctr_xbox, k_ent_menuitem_type_visual_nocol );
 581       }
 582       /* FIXME: Steam/Deck controller detection? */
 583    }
 584 }
 585
 586 static void menu_binding_string( char buf[128], u32 pstr );
 587
 588 /*
 589  * Run from vg_gui when active
 590  */
 591 static void menu_render(void){
 592    glEnable(GL_BLEND);
 593    glDisable(GL_DEPTH_TEST);
 594    glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
 595    glBlendEquation(GL_FUNC_ADD);
 596
 597    shader_blitcolour_use();
 598    v4f colour;
 599    ui_hex_to_norm( ui_colour( k_ui_bg+3 ), colour );
 600    colour[3] = 0.5f;
 601
 602    shader_blitcolour_uColour( colour );
 603    render_fsquad();
 604
 605    if( (workshop_form.page != k_workshop_form_hidden) ||
 606        (vg_ui.focused_control_type != k_ui_control_none) ){
 607       return;
 608    }
 609
 610    if( menu.credits_open ){
 611       ui_rect panel = { 0,0, 460, 400 },
 612               screen = { 0,0, vg.window_x,vg.window_y };
 613       ui_rect_center( screen, panel );
 614       ui_fill( panel, ui_colour(k_ui_bg) );
 615       ui_outline( panel, 1, ui_colour(k_ui_fg), 0 );
 616       ui_rect_pad( panel, (ui_px[]){8,8} );
 617
 618       ui_rect title;
 619       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 620       ui_text( title, "Skate Rift - Credits", 2, k_ui_align_middle_center, 0 );
 621       ui_split( panel, k_ui_axis_h, 28, 0, title, panel );
 622       ui_text( title, "Mt.Zero Software", 1, k_ui_align_middle_center, 0 );
 623
 624       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 625       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 626       ui_text( title, "Free Software", 2, k_ui_align_middle_center, 0 );
 627
 628       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 629       ui_text( panel,
 630             "Sam Lantinga       - SDL2 - libsdl.org\n"
 631             "Hunter WB          - Anyascii\n"
 632             "David Herberth     - GLAD\n"
 633             "Dominic Szablewski - QOI - qoiformat.org\n"
 634             "Sean Barrett       - stb_image,stb_vorbis,stb_include\n"
 635             "Khronos Group      - OpenGL\n"
 636             , 1, k_ui_align_left, 0 );
 637       return;
 638    }
 639
 640    glEnable( GL_DEPTH_TEST );
 641    glDisable( GL_BLEND );
 642
 643    f32 rate = vg.time_frame_delta * 12.0f;
 644
 645    if( menu.cam ){
 646       camera target;
 647
 648       target.fov = menu.cam->fov;
 649       v3_copy( menu.cam->transform.co, target.pos );
 650
 651       v3f v0;
 652       mdl_transform_vector( &menu.cam->transform, (v3f){0.0f,-1.0f,0.0f}, v0 );
 653       v3_angles( v0, target.angles );
 654
 655       camera_lerp( &menu.view, &target, rate, &menu.view );
 656
 657       menu.view.farz = 150.0f;
 658       menu.view.nearz = 0.01f;
 659
 660       camera_update_transform( &menu.view );
 661       camera_update_view( &menu.view );
 662       camera_update_projection( &menu.view );
 663       camera_finalize( &menu.view );
 664    }
 665    else return;
 666
 667    shader_model_menu_use();
 668    shader_model_menu_uTexMain( 1 );
 669    shader_model_menu_uPv( menu.view.mtx.pv );
 670    shader_model_menu_uPvmPrev( menu.view.mtx_prev.pv );
 671
 672    mesh_bind( &menu.mesh );
 673
 674    v4f white, blue;
 675
 676    ui_hex_to_norm( ui_colour( k_ui_fg ), white );
 677    ui_hex_to_norm( ui_colour( k_ui_orange+k_ui_brighter ), blue );
 678
 679    ent_menuitem *text_list[ 8 ];
 680    u32 text_count = 0;
 681
 682    u32 current_tex = 0xffffffff;
 683
 684    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 685       ent_menuitem *item = mdl_arritm( &menu.items, i );
 686
 687       if(   item->type == k_ent_menuitem_type_disabled ) continue;
 688       if(   item->type == k_ent_menuitem_type_page ) continue;
 689       if( !(item->groups & (0x1 << menu.page)) ) continue;
 690
 691       if(   item->type == k_ent_menuitem_type_binding ){
 692          if( text_count < vg_list_size(text_list) )
 693             text_list[ text_count ++ ] = item;
 694          else
 695             vg_fatal_error( "Text list overflow" );
 696
 697          continue;
 698       }
 699
 700       int selected = 0;
 701
 702       if( menu.loc ){
 703          if( menu.loc->type == k_ent_menuitem_type_slider ){
 704             u32 subid = menu.loc->slider.id_handle;
 705             if( item == mdl_arritm( &menu.items, mdl_entity_id_id(subid) ))
 706                selected = 1;
 707          }
 708          else{
 709             if( item == menu.loc )
 710                selected = 1;
 711          }
 712       }
 713
 714       if( item->type == k_ent_menuitem_type_visual_nocol ){
 715          shader_model_menu_uColour( (v4f){1.0f,1.0f,1.0f,1.0f} );
 716       }
 717       else{
 718          v4f colour;
 719          item->factive = vg_lerpf( item->factive, selected, rate );
 720          v4_lerp( white, blue, item->factive, colour );
 721          shader_model_menu_uColour( colour );
 722       }
 723
 724       f32 scale = 1.0f+item->factive*0.1f;
 725
 726       m4x3f mmdl;
 727       mdl_transform transform = item->transform;
 728       v3_muls( transform.s, scale, transform.s );
 729       mdl_transform_m4x3( &transform, mmdl );
 730
 731       if( item->type == k_ent_menuitem_type_toggle && item->pi32 ){
 732          u32 subid = mdl_entity_id_id( item->checkmark.id_check );
 733          ent_menuitem *subitem = mdl_arritm( &menu.items, subid );
 734
 735          v3_muladds( item->transform.co, item->checkmark.offset, scale,
 736                      subitem->transform.co );
 737
 738          subitem->fvisible = vg_lerpf( subitem->fvisible, *item->pi32, rate );
 739          v3_fill( subitem->transform.s, subitem->fvisible );
 740       }
 741       else if( item->type == k_ent_menuitem_type_slider && item->pf32 ){
 742          u32 il = mdl_entity_id_id( item->slider.id_min ),
 743              ir = mdl_entity_id_id( item->slider.id_max ),
 744              ih = mdl_entity_id_id( item->slider.id_handle );
 745          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 746                     *mr = mdl_arritm( &menu.markers, ir );
 747          ent_menuitem *handle = mdl_arritm( &menu.items, ih );
 748
 749          v3_lerp( ml->transform.co, mr->transform.co, *item->pf32,
 750                   handle->transform.co );
 751       }
 752
 753       shader_model_menu_uMdl( mmdl );
 754
 755       for( u32 j=0; j<item->submesh_count; j++ ){
 756          u32 index = item->submesh_start + j;
 757          mdl_submesh *sm = mdl_arritm( &menu.model.submeshs, index );
 758
 759          mdl_material *mat = mdl_arritm( &menu.model.materials,
 760                                          sm->material_id-1 );
 761
 762          if( mat->tex_diffuse != current_tex ){
 763             glActiveTexture( GL_TEXTURE1 );
 764             glBindTexture( GL_TEXTURE_2D, menu.textures[ mat->tex_diffuse ] );
 765             current_tex = mat->tex_diffuse;
 766          }
 767
 768          mdl_draw_submesh( sm );
 769       }
 770    }
 771
 772    if( !text_count ) return;
 773
 774    char buf[ 128 ];
 775
 776    m4x3f local;
 777    m4x3_identity( local );
 778
 779    font3d_bind( &gui.font, k_font_shader_default, 0, NULL, &menu.view );
 780    for( u32 i=0; i<text_count; i++ ){
 781       ent_menuitem *item = text_list[ i ];
 782       m4x3f transform;
 783       mdl_transform_m4x3( &item->transform, transform );
 784
 785       u32 variant = item->binding.font_variant;
 786       menu_binding_string( buf, item->binding.pstr_bind );
 787       f32 offset = font3d_string_width( variant, buf );
 788
 789       local[3][0] = -0.5f * offset;
 790       m4x3_mul( transform, local, transform );
 791
 792       font3d_simple_draw( variant, buf, &menu.view, transform );
 793    }
 794 }
 795
 796 static void menu_binding_string( char buf[128], u32 pstr ){
 797    vg_str str;
 798    vg_strnull( &str, buf, 128 );
 799
 800    if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_jump" ) ){
 801       vg_input_string( &str, input_button_list[k_srbind_jump], 1 );
 802    }
 803    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick0" ) ){
 804       vg_strcat( &str, "SHUVIT " );
 805       vg_input_string( &str, input_button_list[k_srbind_trick0], 1 );
 806    }
 807    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick1" ) ){
 808       vg_strcat( &str, "KICKFLIP " );
 809       vg_input_string( &str, input_button_list[k_srbind_trick1], 1 );
 810    }
 811    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick2" ) ){
 812       vg_strcat( &str, "TREFLIP " );
 813       vg_input_string( &str, input_button_list[k_srbind_trick2], 1 );
 814    }
 815    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_grab" ) ){
 816       vg_input_string( &str, input_axis_list[k_sraxis_grab], 1 );
 817    }
 818    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_grab_mod" ) ){
 819       vg_input_string( &str, input_joy_list[k_srjoystick_grab], 1 );
 820    }
 821    else
 822       vg_strcat( &str, "error" );
 823 }
 824
 825 #endif /* MENU_H */