menu.h

   1 #pragma once
   2 #include "model.h"
   3 #include "world_render.h"
   4 #include "player.h"
   5 #include "shaders/model_menu.h"
   6 #include "audio.h"
   7 #include "input.h"
   8 #include "workshop.h"
   9 #include "world_map.h"
  10 #include "gui.h"
  11 #include "ent_miniworld.h"
  12
  13 #define MENU_STACK_SIZE 8
  14
  15 struct {
  16    int credits_open;
  17    int disable_open;
  18
  19    u32 page, /* current page index */
  20        page_depth,
  21        controls_page_id;
  22
  23    ent_menuitem *ctr_kbm,
  24                 *ctr_deck,
  25                 *ctr_ps,
  26                 *ctr_steam,
  27                 *ctr_xbox;
  28
  29    enum menu_input_mode{
  30       k_menu_input_mode_keys,
  31       k_menu_input_mode_mouse
  32    }
  33    input_mode;
  34    f32 mouse_track, mouse_dist;  /* used for waking up mouse */
  35    f32 slider_offset;
  36
  37    struct page_stack_frame {
  38       u32 page;
  39       ent_menuitem *loc;
  40       ent_camera *cam;
  41    }
  42    page_stack[ MENU_STACK_SIZE ];
  43
  44    ent_menuitem *loc;
  45    ent_camera   *cam;
  46    camera        view;
  47
  48    mdl_context model;
  49    GLuint *textures;
  50    glmesh mesh;
  51
  52    mdl_array_ptr items, markers, cameras;
  53 }
  54 static menu;
  55
  56 /*
  57  * Attaches memory locations to the various items in the menu
  58  */
  59 static void menu_link(void){
  60    /* link data locations */
  61    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
  62       ent_menuitem *item = mdl_arritm( &menu.items, i );
  63
  64       if( item->type == k_ent_menuitem_type_toggle ||
  65           item->type == k_ent_menuitem_type_slider ){
  66
  67          const char *name;
  68
  69          if( item->type == k_ent_menuitem_type_slider )
  70             name = mdl_pstr( &menu.model, item->slider.pstr_data );
  71          else
  72             name = mdl_pstr( &menu.model, item->checkmark.pstr_data );
  73          vg_var *var = vg_console_match_var( name );
  74
  75          if( var ){
  76             if( ( item->type == k_ent_menuitem_type_slider &&
  77                   var->data_type != k_var_dtype_f32
  78                 ) ||
  79                 ( item->type == k_ent_menuitem_type_toggle &&!
  80                   ( var->data_type == k_var_dtype_i32 ||
  81                     var->data_type == k_var_dtype_u32
  82                   )
  83                )
  84             ){
  85                vg_error( "Cannot hook to data %s(%p), because it is type %d.\n",
  86                            name, var, var->data_type );
  87                item->pvoid = NULL;
  88             }
  89             else{
  90                item->pvoid = var->data;
  91             }
  92          }
  93          else{
  94             vg_error( "No data named %s\n", name );
  95             item->pvoid = NULL;
  96          }
  97       }
  98       else{
  99          item->pvoid = NULL;
 100       }
 101    }
 102
 103    /* link controllers */
 104    menu.ctr_deck = NULL;
 105    menu.ctr_kbm = NULL;
 106    menu.ctr_ps = NULL;
 107    menu.ctr_steam = NULL;
 108    menu.ctr_xbox = NULL;
 109
 110    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 111       ent_menuitem *item = mdl_arritm( &menu.items, i );
 112
 113       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "deck" ) )
 114          menu.ctr_deck = item;
 115       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "kbm" ) )
 116          menu.ctr_kbm = item;
 117       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "ps" ) )
 118          menu.ctr_ps = item;
 119       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "steam" ) )
 120          menu.ctr_steam = item;
 121       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "xbox" ) )
 122          menu.ctr_xbox = item;
 123    }
 124 }
 125
 126 static void menu_close(void){
 127    skaterift.activity = k_skaterift_default;
 128    menu.page_depth = 0;
 129    menu.page = 0xffffffff;
 130    srinput.state = k_input_state_resume;
 131 }
 132
 133 static void menu_init(void){
 134    void *alloc = vg_mem.rtmemory;
 135
 136    mdl_open( &menu.model, "models/rs_menu.mdl", alloc );
 137    mdl_load_metadata_block( &menu.model, alloc );
 138
 139    vg_linear_clear( vg_mem.scratch );
 140
 141    MDL_LOAD_ARRAY( &menu.model, &menu.items,   ent_menuitem, alloc );
 142    MDL_LOAD_ARRAY( &menu.model, &menu.markers, ent_marker, alloc );
 143    MDL_LOAD_ARRAY( &menu.model, &menu.cameras, ent_camera, alloc );
 144
 145    u32 count = mdl_arrcount( &menu.model.textures );
 146    menu.textures = vg_linear_alloc(alloc,vg_align8(sizeof(GLuint)*(count+1)));
 147    menu.textures[0] = vg.tex_missing;
 148
 149    mdl_async_load_glmesh( &menu.model, &menu.mesh, NULL );
 150
 151    for( u32 i=0; i<count; i ++ ){
 152       vg_linear_clear( vg_mem.scratch );
 153       menu.textures[i+1] = vg.tex_missing;
 154
 155       mdl_texture *tex = mdl_arritm( &menu.model.textures, i );
 156       void *data = vg_linear_alloc( vg_mem.scratch, tex->file.pack_size );
 157       mdl_fread_pack_file( &menu.model, &tex->file, data );
 158       vg_tex2d_load_qoi_async( data, tex->file.pack_size,
 159                                VG_TEX2D_LINEAR|VG_TEX2D_CLAMP,
 160                                &menu.textures[i+1] );
 161    }
 162
 163    mdl_close( &menu.model );
 164    shader_model_menu_register();
 165 }
 166
 167 /*
 168  * Drop back a page until we're at the bottom which then we jus quit
 169  */
 170 static void menu_back_page(void){
 171    menu.page_depth --;
 172    if( menu.page_depth == 0 ){
 173       menu_close();
 174    }
 175    else{
 176       menu.page = menu.page_stack[ menu.page_depth ].page;
 177       menu.cam = menu.page_stack[ menu.page_depth ].cam;
 178
 179       if( menu.input_mode == k_menu_input_mode_keys )
 180          menu.loc = menu.page_stack[ menu.page_depth ].loc;
 181       else menu.loc = NULL;
 182    }
 183 }
 184
 185 /*
 186  * Open page to the string identifier
 187  */
 188 static void menu_open_page( const char *name,
 189                             enum ent_menuitem_stack_behaviour stackmode ){
 190    srinput.state = k_input_state_resume;
 191    if( stackmode == k_ent_menuitem_stack_append ){
 192       if( menu.page_depth >= MENU_STACK_SIZE )
 193          vg_fatal_error( "Stack overflow\n" );
 194    }
 195    else{
 196       if( menu.page_depth == 0 )
 197          vg_fatal_error( "Stack underflow\n" );
 198    }
 199
 200    u32 hash = vg_strdjb2( name );
 201    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 202       ent_menuitem *item = mdl_arritm( &menu.items, i );
 203
 204       if( item->type == k_ent_menuitem_type_page ){
 205          if( mdl_pstreq( &menu.model, item->page.pstr_name, name, hash ) ){
 206             u32 new_page = __builtin_ctz( item->groups );
 207
 208             if( new_page == menu.page ){
 209                if( stackmode != k_ent_menuitem_stack_replace )
 210                   menu_back_page();
 211             }
 212             else{
 213                menu.page_stack[ menu.page_depth ].page = menu.page;
 214                menu.page_stack[ menu.page_depth ].cam = menu.cam;
 215                menu.page_stack[ menu.page_depth ].loc = menu.loc;
 216
 217                if( stackmode == k_ent_menuitem_stack_append )
 218                   menu.page_depth ++;
 219
 220                menu.page = __builtin_ctz( item->groups );
 221
 222                if( menu.input_mode == k_menu_input_mode_keys ){
 223                   if( item->page.id_entrypoint ){
 224                      u32 id = mdl_entity_id_id( item->page.id_entrypoint );
 225                      menu.loc = mdl_arritm( &menu.items, id );
 226                   }
 227                }
 228
 229                if( item->page.id_viewpoint ){
 230                   u32 id = mdl_entity_id_id( item->page.id_viewpoint );
 231                   menu.cam = mdl_arritm( &menu.cameras, id );
 232                }
 233             }
 234             return;
 235          }
 236       }
 237    }
 238 }
 239
 240 /*
 241  * activate a pressable type
 242  */
 243 static void menu_trigger_item( ent_menuitem *item ){
 244    if     ( item->type == k_ent_menuitem_type_event_button ){
 245       u32 q = item->button.pstr;
 246
 247       if( MDL_CONST_PSTREQ( &menu.model, q, "quit" ) ){
 248          vg.window_should_close = 1;
 249       }
 250       else if( MDL_CONST_PSTREQ( &menu.model, q, "map" ) ){
 251          menu_close();
 252          world_map_enter();
 253       }
 254       else if( MDL_CONST_PSTREQ( &menu.model, q, "hub" ) ){
 255          if( world_static.active_instance == k_world_purpose_client ){
 256             menu_close();
 257             ent_miniworld_goback();
 258          }
 259       }
 260       else if( MDL_CONST_PSTREQ( &menu.model, q, "credits" ) ){
 261          menu.credits_open = 1;
 262       }
 263       else if( MDL_CONST_PSTREQ( &menu.model, q, "workshop" ) ){
 264          workshop_submit_command(0,NULL);
 265       }
 266       else if( MDL_CONST_PSTREQ( &menu.model, q, "engine" ) ){
 267          vg_settings_open();
 268       }
 269       else if( MDL_CONST_PSTREQ( &menu.model, q, "prem_store" ) ){
 270          if( steam_ready )
 271             SteamAPI_ISteamFriends_ActivateGameOverlayToStore(
 272                   SteamAPI_SteamFriends(), 2103940, k_EOverlayToStoreFlag_None);
 273       }
 274       else if( MDL_CONST_PSTREQ( &menu.model, q, "prem_nevermind" ) ){
 275          menu_close();
 276       }
 277    }
 278    else if( item->type == k_ent_menuitem_type_page_button ){
 279       menu_open_page( mdl_pstr( &menu.model, item->button.pstr ),
 280                       item->button.stack_behaviour );
 281    }
 282    else if( item->type == k_ent_menuitem_type_toggle ){
 283       if( item->pi32 ){
 284          *item->pi32 = *item->pi32 ^ 0x1;
 285       }
 286    }
 287 }
 288
 289 static f32 menu_slider_snap( f32 value, f32 old, f32 notch ){
 290    f32 const k_epsilon = 0.0125f;
 291
 292    if( fabsf(notch-value) < k_epsilon ){
 293       if( fabsf(notch-old) > k_epsilon ){
 294          audio_lock();
 295          audio_oneshot( &audio_ui[0], 1.0f, 0.0f );
 296          audio_unlock();
 297       }
 298
 299       return notch;
 300    }
 301    else
 302       return value;
 303 }
 304
 305 static void menu_setitem_type( ent_menuitem *item,
 306                                enum ent_menuitem_type type ){
 307    if( !item ) return;
 308    item->type = type;
 309 }
 310
 311 /*
 312  * Run from vg_gui every frame
 313  */
 314 static void menu_update(void){
 315    if( workshop_form.page != k_workshop_form_hidden ){
 316       return;
 317    }
 318
 319    int escape = button_down( k_srbind_mback );
 320    if( menu.credits_open || vg.settings_open ){
 321       if( escape ){
 322          menu.credits_open = 0;
 323
 324          if( vg.settings_open )
 325             vg_settings_close();
 326       }
 327       return;
 328    }
 329
 330    if( button_down( k_srbind_mopen ) ){
 331       if( skaterift.activity == k_skaterift_default ){
 332          skaterift.activity = k_skaterift_menu;
 333          menu.page = 0xffffffff;
 334          menu_open_page( "Main Menu", k_ent_menuitem_stack_append );
 335          return;
 336       }
 337    }
 338
 339    if( skaterift.activity != k_skaterift_menu ) return;
 340    enum menu_input_mode prev_mode = menu.input_mode;
 341
 342    /* get buttons inputs
 343     * -------------------------------------------------------------------*/
 344    int ml = button_down( k_srbind_mleft ),
 345        mr = button_down( k_srbind_mright ),
 346        mu = button_down( k_srbind_mup ),
 347        md = button_down( k_srbind_mdown ),
 348        mh = ml-mr,
 349        mv = mu-md,
 350        enter = button_down( k_srbind_maccept );
 351
 352    if( mh||mv||enter ){
 353       menu.input_mode = k_menu_input_mode_keys;
 354    }
 355
 356    /* get mouse inputs
 357     * --------------------------------------------------------------------*/
 358    menu.mouse_dist += v2_length( vg.mouse_delta ); /* TODO: Move to UI */
 359    menu.mouse_track += vg.time_frame_delta;
 360    if( menu.mouse_track > 0.1f ){
 361       menu.mouse_track = fmodf( menu.mouse_track, 0.1f );
 362       if( menu.mouse_dist > 10.0f ){
 363          menu.input_mode = k_menu_input_mode_mouse;
 364          menu.mouse_dist = 0.0f;
 365       }
 366    }
 367
 368    if( ui_clicking(UI_MOUSE_LEFT) || ui_clicking(UI_MOUSE_RIGHT) ){
 369       menu.input_mode = k_menu_input_mode_mouse;
 370    }
 371
 372    if( menu.input_mode == k_menu_input_mode_mouse ){
 373       /*
 374        * handle mouse input
 375        * ------------------------------------------------------------*/
 376       vg_ui.wants_mouse = 1;
 377
 378       /*
 379        * this raycasting is super cumbersome because all the functions were
 380        * designed for other purposes. we dont care though.
 381        */
 382       m4x4f inverse;
 383       m4x4_inv( menu.view.mtx.p, inverse );
 384       v4f coords;
 385       coords[0] = vg_ui.mouse[0];
 386       coords[1] = vg.window_y - vg_ui.mouse[1];
 387       v2_div( coords, (v2f){ vg.window_x, vg.window_y }, coords );
 388       v2_muls( coords, 2.0f, coords );
 389       v2_add( coords, (v2f){-1.0f,-1.0f}, coords );
 390       coords[2] = 1.0f;
 391       coords[3] = 1.0f;
 392       m4x4_mulv( inverse, coords, coords );
 393       v3f ray;
 394       m3x3_mulv( menu.view.transform, coords, ray );
 395       v3_normalize( ray );
 396
 397       if( menu.loc && (menu.loc->type == k_ent_menuitem_type_slider) &&
 398           ui_clicking(UI_MOUSE_LEFT) && menu.loc->pf32 ){
 399
 400          u32 il = mdl_entity_id_id( menu.loc->slider.id_min ),
 401              ir = mdl_entity_id_id( menu.loc->slider.id_max );
 402          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 403                     *mr = mdl_arritm( &menu.markers, ir );
 404
 405          v3f q2;
 406          v3_muladds( menu.view.pos, ray, 100.0f, q2 );
 407
 408          f32 s,t;
 409          v3f c1, c2;
 410          v3f p1, q1, v0;
 411          v3_sub( mr->transform.co, ml->transform.co, v0 );
 412          v3_muladds( ml->transform.co, v0, -1.0f, p1 );
 413          v3_muladds( mr->transform.co, v0,  1.0f, q1 );
 414          closest_segment_segment( p1, q1, menu.view.pos, q2, &s,&t, c1,c2 );
 415
 416          s-=(1.0f/3.0f);
 417          s/=(1.0f/3.0f);
 418
 419          if( ui_click_down(UI_MOUSE_LEFT) ){
 420             menu.slider_offset = *menu.loc->pf32 - s;
 421          }
 422
 423          f32 newvalue = vg_clampf( s+menu.slider_offset, 0.0f, 1.0f );
 424
 425          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.00f );
 426          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 1.00f );
 427          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.25f );
 428          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.50f );
 429          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.75f );
 430
 431          *menu.loc->pf32 = newvalue;
 432          return;
 433       }
 434
 435       ent_menuitem *hit_item = NULL;
 436
 437       for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 438          ent_menuitem *item = mdl_arritm( &menu.items, i );
 439
 440          if( item->type == k_ent_menuitem_type_page ) continue;
 441          if( (item->type == k_ent_menuitem_type_visual) ||
 442              (item->type == k_ent_menuitem_type_visual_nocol) ) continue;
 443          if( item->type == k_ent_menuitem_type_binding ) continue;
 444          if( !(item->groups & (0x1<<menu.page)) ) continue;
 445
 446          ent_menuitem *ray_item = item;
 447
 448          if( item->type == k_ent_menuitem_type_slider ){
 449             u32 subtarget = mdl_entity_id_id( item->slider.id_handle );
 450             ray_item = mdl_arritm( &menu.items, subtarget );
 451          }
 452
 453          v3f local_ray,
 454              local_co;
 455
 456          m4x3f inverse_mtx;
 457          mdl_transform_m4x3( &ray_item->transform, inverse_mtx );
 458          m4x3_invert_full( inverse_mtx, inverse_mtx );
 459
 460          m4x3_mulv( inverse_mtx, menu.view.transform[3], local_co );
 461          m3x3_mulv( inverse_mtx, ray, local_ray );
 462          v3_normalize( local_ray );
 463
 464          local_ray[0] = 1.0f/local_ray[0];
 465          local_ray[1] = 1.0f/local_ray[1];
 466          local_ray[2] = 1.0f/local_ray[2];
 467
 468          for( u32 j=0; j<ray_item->submesh_count; j++ ){
 469             mdl_submesh *sm = mdl_arritm( &menu.model.submeshs,
 470                                            ray_item->submesh_start + j );
 471             if( ray_aabb1( sm->bbx, local_co, local_ray, 1000.0f ) ){
 472                hit_item = item;
 473                break;
 474             }
 475          }
 476       }
 477
 478       if( hit_item != menu.loc ){
 479          menu.loc = hit_item;
 480       }
 481
 482       if( escape ){
 483          menu_back_page();
 484       }
 485       else if( menu.loc ){
 486          if( ui_click_down( UI_MOUSE_LEFT ) ){
 487             menu_trigger_item( menu.loc );
 488          }
 489       }
 490    }
 491    else if( menu.input_mode == k_menu_input_mode_keys ){
 492       /*
 493        * handle button input
 494        * ------------------------------------------------------------*/
 495       if( (prev_mode != k_menu_input_mode_keys) && !menu.loc ){
 496          for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 497             ent_menuitem *item = mdl_arritm( &menu.items, i );
 498
 499             if( (item->type != k_ent_menuitem_type_page) &&
 500                 (item->type != k_ent_menuitem_type_visual) &&
 501                 (item->type != k_ent_menuitem_type_visual_nocol) &&
 502                 (item->groups & (0x1<<menu.page)) ){
 503                menu.loc = item;
 504             }
 505          }
 506       }
 507
 508       if( !menu.loc ) vg_fatal_error( "No location\n" );
 509
 510       if( menu.loc->type == k_ent_menuitem_type_slider && menu.loc->pf32 ){
 511          f32 move = 0.0f;
 512
 513          if( vg_input.display_input_method == k_input_method_controller ){
 514             move += button_press( k_srbind_mright );
 515             move -= button_press( k_srbind_mleft );
 516          }
 517          else{
 518             move += axis_state( k_sraxis_mbrowse_h );
 519          }
 520
 521          move *= vg.time_frame_delta;
 522          *menu.loc->pf32 = vg_clampf( *menu.loc->pf32 + move, 0.0f, 1.0f );
 523
 524          mh = 0;
 525       }
 526
 527       if( escape ){
 528          menu_back_page();
 529       }
 530       else if( enter ){
 531          menu_trigger_item( menu.loc );
 532       }
 533       else if( mh||mv ){
 534          v3f opt;
 535          v3_zero( opt );
 536          f32 best = 0.707f;
 537          ent_menuitem *nextpos = NULL;
 538
 539          opt[0] += mh;
 540          opt[2] += mv;
 541          mdl_transform_vector( &menu.cam->transform, opt, opt );
 542
 543          for( u32 i=0; i<4; i++ ){
 544             u32 id = menu.loc->id_links[i];
 545             if( !id ) continue;
 546             u32 index = mdl_entity_id_id( id );
 547
 548             ent_menuitem *other = mdl_arritm( &menu.items, index );
 549             v3f delta;
 550             v3_sub( menu.loc->transform.co, other->transform.co, delta );
 551             v3_normalize( delta );
 552
 553             f32 score = v3_dot( delta, opt );
 554             if( score > best ){
 555                best = score;
 556                nextpos = other;
 557             }
 558          }
 559
 560          if( nextpos ){
 561             menu.loc = nextpos;
 562          }
 563       }
 564    }
 565
 566    menu_setitem_type( menu.ctr_deck, k_ent_menuitem_type_disabled );
 567    menu_setitem_type( menu.ctr_ps, k_ent_menuitem_type_disabled );
 568    menu_setitem_type( menu.ctr_kbm, k_ent_menuitem_type_disabled );
 569    menu_setitem_type( menu.ctr_xbox, k_ent_menuitem_type_disabled );
 570    menu_setitem_type( menu.ctr_steam, k_ent_menuitem_type_disabled );
 571
 572    if( vg_input.display_input_method == k_input_method_kbm )
 573       menu_setitem_type( menu.ctr_kbm, k_ent_menuitem_type_visual_nocol );
 574    else{
 575       if( vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS3 ||
 576           vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS4 ||
 577           vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS5 ){
 578          menu_setitem_type( menu.ctr_ps, k_ent_menuitem_type_visual_nocol );
 579       }
 580       else {
 581          menu_setitem_type( menu.ctr_xbox, k_ent_menuitem_type_visual_nocol );
 582       }
 583       /* FIXME: Steam/Deck controller detection? */
 584    }
 585 }
 586
 587 static void menu_binding_string( char buf[128], u32 pstr );
 588
 589 /*
 590  * Run from vg_gui when active
 591  */
 592 static void menu_render(void){
 593    glEnable(GL_BLEND);
 594    glDisable(GL_DEPTH_TEST);
 595    glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
 596    glBlendEquation(GL_FUNC_ADD);
 597
 598    shader_blitcolour_use();
 599    v4f colour;
 600    ui_hex_to_norm( ui_colour( k_ui_bg+3 ), colour );
 601    colour[3] = 0.5f;
 602
 603    shader_blitcolour_uColour( colour );
 604    render_fsquad();
 605
 606    if( (workshop_form.page != k_workshop_form_hidden) ||
 607        (vg_ui.focused_control_type != k_ui_control_none) ){
 608       return;
 609    }
 610
 611    if( vg.settings_open )
 612       return;
 613
 614    if( menu.credits_open ){
 615       ui_rect panel = { 0,0, 460, 400 },
 616               screen = { 0,0, vg.window_x,vg.window_y };
 617       ui_rect_center( screen, panel );
 618       ui_fill( panel, ui_colour(k_ui_bg) );
 619       ui_outline( panel, 1, ui_colour(k_ui_fg), 0 );
 620       ui_rect_pad( panel, (ui_px[]){8,8} );
 621
 622       ui_rect title;
 623       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 624       ui_text( title, "Skate Rift - Credits", 2, k_ui_align_middle_center, 0 );
 625       ui_split( panel, k_ui_axis_h, 28, 0, title, panel );
 626       ui_text( title, "Mt.Zero Software", 1, k_ui_align_middle_center, 0 );
 627
 628       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 629       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 630       ui_text( title, "Free Software", 2, k_ui_align_middle_center, 0 );
 631
 632       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 633       ui_text( panel,
 634             "Sam Lantinga       - SDL2 - libsdl.org\n"
 635             "Hunter WB          - Anyascii\n"
 636             "David Herberth     - GLAD\n"
 637             "Dominic Szablewski - QOI - qoiformat.org\n"
 638             "Sean Barrett       - stb_image,stb_vorbis,stb_include\n"
 639             "Khronos Group      - OpenGL\n"
 640             , 1, k_ui_align_left, 0 );
 641       return;
 642    }
 643
 644    glEnable( GL_DEPTH_TEST );
 645    glDisable( GL_BLEND );
 646
 647    f32 rate = vg.time_frame_delta * 12.0f;
 648
 649    if( menu.cam ){
 650       camera target;
 651
 652       target.fov = menu.cam->fov;
 653       v3_copy( menu.cam->transform.co, target.pos );
 654
 655       v3f v0;
 656       mdl_transform_vector( &menu.cam->transform, (v3f){0.0f,-1.0f,0.0f}, v0 );
 657       v3_angles( v0, target.angles );
 658
 659       camera_lerp( &menu.view, &target, rate, &menu.view );
 660
 661       menu.view.farz = 150.0f;
 662       menu.view.nearz = 0.01f;
 663
 664       camera_update_transform( &menu.view );
 665       camera_update_view( &menu.view );
 666       camera_update_projection( &menu.view );
 667       camera_finalize( &menu.view );
 668    }
 669    else return;
 670
 671    shader_model_menu_use();
 672    shader_model_menu_uTexMain( 1 );
 673    shader_model_menu_uPv( menu.view.mtx.pv );
 674    shader_model_menu_uPvmPrev( menu.view.mtx_prev.pv );
 675
 676    mesh_bind( &menu.mesh );
 677
 678    v4f white, blue;
 679
 680    ui_hex_to_norm( ui_colour( k_ui_fg ), white );
 681    ui_hex_to_norm( ui_colour( k_ui_orange+k_ui_brighter ), blue );
 682
 683    ent_menuitem *text_list[ 8 ];
 684    u32 text_count = 0;
 685
 686    u32 current_tex = 0xffffffff;
 687
 688    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 689       ent_menuitem *item = mdl_arritm( &menu.items, i );
 690
 691       if(   item->type == k_ent_menuitem_type_disabled ) continue;
 692       if(   item->type == k_ent_menuitem_type_page ) continue;
 693       if( !(item->groups & (0x1 << menu.page)) ) continue;
 694
 695       if(   item->type == k_ent_menuitem_type_binding ){
 696          if( text_count < vg_list_size(text_list) )
 697             text_list[ text_count ++ ] = item;
 698          else
 699             vg_fatal_error( "Text list overflow" );
 700
 701          continue;
 702       }
 703
 704       int selected = 0;
 705
 706       if( menu.loc ){
 707          if( menu.loc->type == k_ent_menuitem_type_slider ){
 708             u32 subid = menu.loc->slider.id_handle;
 709             if( item == mdl_arritm( &menu.items, mdl_entity_id_id(subid) ))
 710                selected = 1;
 711          }
 712          else{
 713             if( item == menu.loc )
 714                selected = 1;
 715          }
 716       }
 717
 718       if( item->type == k_ent_menuitem_type_visual_nocol ){
 719          shader_model_menu_uColour( (v4f){1.0f,1.0f,1.0f,1.0f} );
 720       }
 721       else{
 722          v4f colour;
 723          item->factive = vg_lerpf( item->factive, selected, rate );
 724          v4_lerp( white, blue, item->factive, colour );
 725          shader_model_menu_uColour( colour );
 726       }
 727
 728       f32 scale = 1.0f+item->factive*0.1f;
 729
 730       m4x3f mmdl;
 731       mdl_transform transform = item->transform;
 732       v3_muls( transform.s, scale, transform.s );
 733       mdl_transform_m4x3( &transform, mmdl );
 734
 735       if( item->type == k_ent_menuitem_type_toggle && item->pi32 ){
 736          u32 subid = mdl_entity_id_id( item->checkmark.id_check );
 737          ent_menuitem *subitem = mdl_arritm( &menu.items, subid );
 738
 739          v3_muladds( item->transform.co, item->checkmark.offset, scale,
 740                      subitem->transform.co );
 741
 742          subitem->fvisible = vg_lerpf( subitem->fvisible, *item->pi32, rate );
 743          v3_fill( subitem->transform.s, subitem->fvisible );
 744       }
 745       else if( item->type == k_ent_menuitem_type_slider && item->pf32 ){
 746          u32 il = mdl_entity_id_id( item->slider.id_min ),
 747              ir = mdl_entity_id_id( item->slider.id_max ),
 748              ih = mdl_entity_id_id( item->slider.id_handle );
 749          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 750                     *mr = mdl_arritm( &menu.markers, ir );
 751          ent_menuitem *handle = mdl_arritm( &menu.items, ih );
 752
 753          v3_lerp( ml->transform.co, mr->transform.co, *item->pf32,
 754                   handle->transform.co );
 755       }
 756
 757       shader_model_menu_uMdl( mmdl );
 758
 759       for( u32 j=0; j<item->submesh_count; j++ ){
 760          u32 index = item->submesh_start + j;
 761          mdl_submesh *sm = mdl_arritm( &menu.model.submeshs, index );
 762
 763          mdl_material *mat = mdl_arritm( &menu.model.materials,
 764                                          sm->material_id-1 );
 765
 766          if( mat->tex_diffuse != current_tex ){
 767             glActiveTexture( GL_TEXTURE1 );
 768             glBindTexture( GL_TEXTURE_2D, menu.textures[ mat->tex_diffuse ] );
 769             current_tex = mat->tex_diffuse;
 770          }
 771
 772          mdl_draw_submesh( sm );
 773       }
 774    }
 775
 776    if( !text_count ) return;
 777
 778    char buf[ 128 ];
 779
 780    m4x3f local;
 781    m4x3_identity( local );
 782
 783    font3d_bind( &gui.font, k_font_shader_default, 0, NULL, &menu.view );
 784    for( u32 i=0; i<text_count; i++ ){
 785       ent_menuitem *item = text_list[ i ];
 786       m4x3f transform;
 787       mdl_transform_m4x3( &item->transform, transform );
 788
 789       u32 variant = item->binding.font_variant;
 790       menu_binding_string( buf, item->binding.pstr_bind );
 791       f32 offset = font3d_string_width( variant, buf );
 792
 793       local[3][0] = -0.5f * offset;
 794       m4x3_mul( transform, local, transform );
 795
 796       font3d_simple_draw( variant, buf, &menu.view, transform );
 797    }
 798 }
 799
 800 static void menu_binding_string( char buf[128], u32 pstr ){
 801    vg_str str;
 802    vg_strnull( &str, buf, 128 );
 803
 804    if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_jump" ) ){
 805       vg_input_string( &str, input_button_list[k_srbind_jump], 1 );
 806    }
 807    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick0" ) ){
 808       vg_strcat( &str, "SHUVIT " );
 809       vg_input_string( &str, input_button_list[k_srbind_trick0], 1 );
 810    }
 811    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick1" ) ){
 812       vg_strcat( &str, "KICKFLIP " );
 813       vg_input_string( &str, input_button_list[k_srbind_trick1], 1 );
 814    }
 815    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick2" ) ){
 816       vg_strcat( &str, "TREFLIP " );
 817       vg_input_string( &str, input_button_list[k_srbind_trick2], 1 );
 818    }
 819    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_grab" ) ){
 820       vg_input_string( &str, input_axis_list[k_sraxis_grab], 1 );
 821    }
 822    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_grab_mod" ) ){
 823       vg_input_string( &str, input_joy_list[k_srjoystick_grab], 1 );
 824    }
 825    else
 826       vg_strcat( &str, "error" );
 827 }