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
  15 #define MENU_STACK_SIZE 8
  16
  17 struct {
  18    int credits_open;
  19    int disable_open;
  20
  21    u32 page, /* current page index */
  22        page_depth,
  23        controls_page_id;
  24
  25    ent_menuitem *ctr_kbm,
  26                 *ctr_deck,
  27                 *ctr_ps,
  28                 *ctr_steam,
  29                 *ctr_xbox;
  30
  31    enum menu_input_mode{
  32       k_menu_input_mode_keys,
  33       k_menu_input_mode_mouse
  34    }
  35    input_mode;
  36    f32 mouse_track, mouse_dist;  /* used for waking up mouse */
  37    f32 slider_offset;
  38
  39    struct page_stack_frame {
  40       u32 page;
  41       ent_menuitem *loc;
  42       ent_camera *cam;
  43    }
  44    page_stack[ MENU_STACK_SIZE ];
  45
  46    ent_menuitem *loc;
  47    ent_camera   *cam;
  48    camera        view;
  49
  50    mdl_context model;
  51    GLuint texture;
  52    glmesh mesh;
  53
  54    mdl_array_ptr items, markers, cameras;
  55 }
  56 static menu;
  57
  58 /*
  59  * Attaches memory locations to the various items in the menu
  60  */
  61 static void menu_link(void){
  62    /* link data locations */
  63    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
  64       ent_menuitem *item = mdl_arritm( &menu.items, i );
  65
  66       if( item->type == k_ent_menuitem_type_toggle ||
  67           item->type == k_ent_menuitem_type_slider ){
  68
  69          const char *name;
  70
  71          if( item->type == k_ent_menuitem_type_slider )
  72             name = mdl_pstr( &menu.model, item->slider.pstr_data );
  73          else
  74             name = mdl_pstr( &menu.model, item->checkmark.pstr_data );
  75          vg_var *var = vg_console_match_var( name );
  76
  77          if( var ){
  78             if( ( item->type == k_ent_menuitem_type_slider &&
  79                   var->data_type != k_var_dtype_f32
  80                 ) ||
  81                 ( item->type == k_ent_menuitem_type_toggle &&!
  82                   ( var->data_type == k_var_dtype_i32 ||
  83                     var->data_type == k_var_dtype_u32
  84                   )
  85                )
  86             ){
  87                vg_error( "Cannot hook to data %s(%p), because it is type %d.\n",
  88                            name, var, var->data_type );
  89                item->pvoid = NULL;
  90             }
  91             else{
  92                item->pvoid = var->data;
  93             }
  94          }
  95          else{
  96             vg_error( "No data named %s\n", name );
  97             item->pvoid = NULL;
  98          }
  99       }
 100       else{
 101          item->pvoid = NULL;
 102       }
 103    }
 104
 105    /* link controllers */
 106    menu.ctr_deck = NULL;
 107    menu.ctr_kbm = NULL;
 108    menu.ctr_ps = NULL;
 109    menu.ctr_steam = NULL;
 110    menu.ctr_xbox = NULL;
 111
 112    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 113       ent_menuitem *item = mdl_arritm( &menu.items, i );
 114
 115       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "deck" ) )
 116          menu.ctr_deck = item;
 117       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "kbm" ) )
 118          menu.ctr_kbm = item;
 119       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "ps" ) )
 120          menu.ctr_ps = item;
 121       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "steam" ) )
 122          menu.ctr_steam = item;
 123       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "xbox" ) )
 124          menu.ctr_xbox = item;
 125    }
 126 }
 127
 128 static void menu_close(void){
 129    skaterift.activity = k_skaterift_default;
 130    menu.page_depth = 0;
 131    menu.page = 0xffffffff;
 132    srinput.state = k_input_state_resume;
 133 }
 134
 135 static void menu_init(void){
 136    void *alloc = vg_mem.rtmemory;
 137
 138    mdl_open( &menu.model, "models/rs_menu.mdl", alloc );
 139    mdl_load_metadata_block( &menu.model, alloc );
 140
 141    vg_linear_clear( vg_mem.scratch );
 142
 143    mdl_load_array( &menu.model, &menu.items,   "ent_menuitem", alloc );
 144    mdl_load_array( &menu.model, &menu.markers, "ent_marker", alloc );
 145    mdl_load_array( &menu.model, &menu.cameras, "ent_camera", alloc );
 146
 147    vg_linear_clear( vg_mem.scratch );
 148
 149    if( !mdl_arrcount( &menu.model.textures ) )
 150       vg_fatal_error( "No texture in menu file" );
 151
 152    mdl_texture *tex0 = mdl_arritm( &menu.model.textures, 0 );
 153    void *data = vg_linear_alloc( vg_mem.scratch, tex0->file.pack_size );
 154    mdl_fread_pack_file( &menu.model, &tex0->file, data );
 155
 156    mdl_async_load_glmesh( &menu.model, &menu.mesh );
 157    vg_tex2d_load_qoi_async( data, tex0->file.pack_size,
 158                             VG_TEX2D_LINEAR|VG_TEX2D_CLAMP,
 159                             &menu.texture );
 160
 161    mdl_close( &menu.model );
 162    shader_model_menu_register();
 163 }
 164
 165 /*
 166  * Drop back a page until we're at the bottom which then we jus quit
 167  */
 168 static void menu_back_page(void){
 169    menu.page_depth --;
 170    if( menu.page_depth == 0 ){
 171       menu_close();
 172    }
 173    else{
 174       menu.page = menu.page_stack[ menu.page_depth ].page;
 175       menu.cam = menu.page_stack[ menu.page_depth ].cam;
 176
 177       if( menu.input_mode == k_menu_input_mode_keys )
 178          menu.loc = menu.page_stack[ menu.page_depth ].loc;
 179       else menu.loc = NULL;
 180    }
 181 }
 182
 183 /*
 184  * Open page to the string identifier
 185  */
 186 static void menu_open_page( const char *name,
 187                             enum ent_menuitem_stack_behaviour stackmode ){
 188    if( stackmode == k_ent_menuitem_stack_append ){
 189       if( menu.page_depth >= MENU_STACK_SIZE )
 190          vg_fatal_error( "Stack overflow\n" );
 191    }
 192    else{
 193       if( menu.page_depth == 0 )
 194          vg_fatal_error( "Stack underflow\n" );
 195    }
 196
 197    u32 hash = vg_strdjb2( name );
 198    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 199       ent_menuitem *item = mdl_arritm( &menu.items, i );
 200
 201       if( item->type == k_ent_menuitem_type_page ){
 202          if( mdl_pstreq( &menu.model, item->page.pstr_name, name, hash ) ){
 203             u32 new_page = __builtin_ctz( item->groups );
 204
 205             if( new_page == menu.page ){
 206                if( stackmode != k_ent_menuitem_stack_replace )
 207                   menu_back_page();
 208             }
 209             else{
 210                menu.page_stack[ menu.page_depth ].page = menu.page;
 211                menu.page_stack[ menu.page_depth ].cam = menu.cam;
 212                menu.page_stack[ menu.page_depth ].loc = menu.loc;
 213
 214                if( stackmode == k_ent_menuitem_stack_append )
 215                   menu.page_depth ++;
 216
 217                menu.page = __builtin_ctz( item->groups );
 218
 219                if( menu.input_mode == k_menu_input_mode_keys ){
 220                   if( item->page.id_entrypoint ){
 221                      u32 id = mdl_entity_id_id( item->page.id_entrypoint );
 222                      menu.loc = mdl_arritm( &menu.items, id );
 223                   }
 224                }
 225
 226                if( item->page.id_viewpoint ){
 227                   u32 id = mdl_entity_id_id( item->page.id_viewpoint );
 228                   menu.cam = mdl_arritm( &menu.cameras, id );
 229                }
 230             }
 231             return;
 232          }
 233       }
 234    }
 235 }
 236
 237 /*
 238  * activate a pressable type
 239  */
 240 static void menu_trigger_item( ent_menuitem *item ){
 241    if     ( item->type == k_ent_menuitem_type_event_button ){
 242       u32 q = item->button.pstr;
 243
 244       if( MDL_CONST_PSTREQ( &menu.model, q, "quit" ) ){
 245          vg.window_should_close = 1;
 246       }
 247
 248       /* DEPRECATED? */
 249       else if( MDL_CONST_PSTREQ( &menu.model, q, "reset_nearest" ) ){
 250          localplayer_cmd_respawn( 0, NULL );
 251          menu_close();
 252       }
 253       /* DEPRECATED? */
 254       else if( MDL_CONST_PSTREQ( &menu.model, q, "reset_home" ) ){
 255          world_set_active_instance( 0 );
 256          localplayer.viewable_world = world_current_instance();
 257          localplayer_cmd_respawn( 1, (const char *[]){"start"} );
 258          menu_close();
 259       }
 260
 261       else if( MDL_CONST_PSTREQ( &menu.model, q, "reset" ) ){
 262          menu_close();
 263          respawn_begin_chooser();
 264       }
 265
 266       else if( MDL_CONST_PSTREQ( &menu.model, q, "credits" ) ){
 267          menu.credits_open = 1;
 268       }
 269       else if( MDL_CONST_PSTREQ( &menu.model, q, "workshop" ) ){
 270          workshop_submit_command(0,NULL);
 271       }
 272    }
 273    else if( item->type == k_ent_menuitem_type_page_button ){
 274       menu_open_page( mdl_pstr( &menu.model, item->button.pstr ),
 275                       item->button.stack_behaviour );
 276    }
 277    else if( item->type == k_ent_menuitem_type_toggle ){
 278       if( item->pi32 ){
 279          *item->pi32 = *item->pi32 ^ 0x1;
 280       }
 281    }
 282 }
 283
 284 static f32 menu_slider_snap( f32 value, f32 old, f32 notch ){
 285    f32 const k_epsilon = 0.0125f;
 286
 287    if( fabsf(notch-value) < k_epsilon ){
 288       if( fabsf(notch-old) > k_epsilon ){
 289          audio_lock();
 290          audio_oneshot( &audio_ui[0], 1.0f, 0.0f );
 291          audio_unlock();
 292       }
 293
 294       return notch;
 295    }
 296    else
 297       return value;
 298 }
 299
 300 static void menu_setitem_type( ent_menuitem *item,
 301                                enum ent_menuitem_type type ){
 302    if( !item ) return;
 303    item->type = type;
 304 }
 305
 306 /*
 307  * Run from vg_gui every frame
 308  */
 309 static void menu_update(void){
 310    if( workshop_form.page != k_workshop_form_hidden ){
 311       return;
 312    }
 313
 314    int escape = button_down( k_srbind_mback );
 315    if( menu.credits_open ){
 316       if( escape ){
 317          menu.credits_open = 0;
 318       }
 319       return;
 320    }
 321
 322    if( button_down( k_srbind_mopen ) ){
 323       if( skaterift.activity == k_skaterift_default ){
 324          skaterift.activity = k_skaterift_menu;
 325          menu.page = 0xffffffff;
 326          menu_open_page( "Main Menu", k_ent_menuitem_stack_append );
 327          return;
 328       }
 329    }
 330
 331    if( skaterift.activity != k_skaterift_menu ) return;
 332    enum menu_input_mode prev_mode = menu.input_mode;
 333
 334    /* get buttons inputs
 335     * -------------------------------------------------------------------*/
 336    int ml = button_down( k_srbind_mleft ),
 337        mr = button_down( k_srbind_mright ),
 338        mu = button_down( k_srbind_mup ),
 339        md = button_down( k_srbind_mdown ),
 340        mh = ml-mr,
 341        mv = mu-md,
 342        enter = button_down( k_srbind_maccept );
 343
 344    if( mh||mv||enter ){
 345       menu.input_mode = k_menu_input_mode_keys;
 346    }
 347
 348    /* get mouse inputs
 349     * --------------------------------------------------------------------*/
 350    menu.mouse_dist += v2_length( vg.mouse_delta ); /* TODO: Move to UI */
 351    menu.mouse_track += vg.time_frame_delta;
 352    if( menu.mouse_track > 0.1f ){
 353       menu.mouse_track = fmodf( menu.mouse_track, 0.1f );
 354       if( menu.mouse_dist > 10.0f ){
 355          menu.input_mode = k_menu_input_mode_mouse;
 356          menu.mouse_dist = 0.0f;
 357       }
 358    }
 359
 360    if( ui_clicking(UI_MOUSE_LEFT) || ui_clicking(UI_MOUSE_RIGHT) ){
 361       menu.input_mode = k_menu_input_mode_mouse;
 362    }
 363
 364    if( menu.input_mode == k_menu_input_mode_mouse ){
 365       /*
 366        * handle mouse input
 367        * ------------------------------------------------------------*/
 368       vg_ui.wants_mouse = 1;
 369
 370       /*
 371        * this raycasting is super cumbersome because all the functions were
 372        * designed for other purposes. we dont care though.
 373        */
 374       m4x4f inverse;
 375       m4x4_inv( menu.view.mtx.p, inverse );
 376       v4f coords;
 377       coords[0] = vg_ui.mouse[0];
 378       coords[1] = vg.window_y - vg_ui.mouse[1];
 379       v2_div( coords, (v2f){ vg.window_x, vg.window_y }, coords );
 380       v2_muls( coords, 2.0f, coords );
 381       v2_add( coords, (v2f){-1.0f,-1.0f}, coords );
 382       coords[2] = 1.0f;
 383       coords[3] = 1.0f;
 384       m4x4_mulv( inverse, coords, coords );
 385       v3f ray;
 386       m3x3_mulv( menu.view.transform, coords, ray );
 387       v3_normalize( ray );
 388
 389       if( menu.loc && (menu.loc->type == k_ent_menuitem_type_slider) &&
 390           ui_clicking(UI_MOUSE_LEFT) && menu.loc->pf32 ){
 391
 392          u32 il = mdl_entity_id_id( menu.loc->slider.id_min ),
 393              ir = mdl_entity_id_id( menu.loc->slider.id_max );
 394          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 395                     *mr = mdl_arritm( &menu.markers, ir );
 396
 397          v3f q2;
 398          v3_muladds( menu.view.pos, ray, 100.0f, q2 );
 399
 400          f32 s,t;
 401          v3f c1, c2;
 402          v3f p1, q1, v0;
 403          v3_sub( mr->transform.co, ml->transform.co, v0 );
 404          v3_muladds( ml->transform.co, v0, -1.0f, p1 );
 405          v3_muladds( mr->transform.co, v0,  1.0f, q1 );
 406          closest_segment_segment( p1, q1, menu.view.pos, q2, &s,&t, c1,c2 );
 407
 408          s-=(1.0f/3.0f);
 409          s/=(1.0f/3.0f);
 410
 411          if( ui_click_down(UI_MOUSE_LEFT) ){
 412             menu.slider_offset = *menu.loc->pf32 - s;
 413          }
 414
 415          f32 newvalue = vg_clampf( s+menu.slider_offset, 0.0f, 1.0f );
 416
 417          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.00f );
 418          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 1.00f );
 419          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.25f );
 420          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.50f );
 421          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.75f );
 422
 423          *menu.loc->pf32 = newvalue;
 424          return;
 425       }
 426
 427       ent_menuitem *hit_item = NULL;
 428
 429       for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 430          ent_menuitem *item = mdl_arritm( &menu.items, i );
 431
 432          if( item->type == k_ent_menuitem_type_page ) continue;
 433          if( (item->type == k_ent_menuitem_type_visual) ||
 434              (item->type == k_ent_menuitem_type_visual_nocol) ) continue;
 435          if( item->type == k_ent_menuitem_type_binding ) continue;
 436          if( !(item->groups & (0x1<<menu.page)) ) continue;
 437
 438          ent_menuitem *ray_item = item;
 439
 440          if( item->type == k_ent_menuitem_type_slider ){
 441             u32 subtarget = mdl_entity_id_id( item->slider.id_handle );
 442             ray_item = mdl_arritm( &menu.items, subtarget );
 443          }
 444
 445          v3f local_ray,
 446              local_co;
 447
 448          m4x3f inverse_mtx;
 449          mdl_transform_m4x3( &ray_item->transform, inverse_mtx );
 450          m4x3_invert_full( inverse_mtx, inverse_mtx );
 451
 452          m4x3_mulv( inverse_mtx, menu.view.transform[3], local_co );
 453          m3x3_mulv( inverse_mtx, ray, local_ray );
 454          v3_normalize( local_ray );
 455
 456          local_ray[0] = 1.0f/local_ray[0];
 457          local_ray[1] = 1.0f/local_ray[1];
 458          local_ray[2] = 1.0f/local_ray[2];
 459
 460          for( u32 j=0; j<ray_item->submesh_count; j++ ){
 461             mdl_submesh *sm = mdl_arritm( &menu.model.submeshs,
 462                                            ray_item->submesh_start + j );
 463             if( ray_aabb1( sm->bbx, local_co, local_ray, 1000.0f ) ){
 464                hit_item = item;
 465                break;
 466             }
 467          }
 468       }
 469
 470       if( hit_item != menu.loc ){
 471          menu.loc = hit_item;
 472       }
 473
 474       if( escape ){
 475          menu_back_page();
 476       }
 477       else if( menu.loc ){
 478          if( ui_click_down( UI_MOUSE_LEFT ) ){
 479             menu_trigger_item( menu.loc );
 480          }
 481       }
 482    }
 483    else if( menu.input_mode == k_menu_input_mode_keys ){
 484       /*
 485        * handle button input
 486        * ------------------------------------------------------------*/
 487       if( (prev_mode != k_menu_input_mode_keys) && !menu.loc ){
 488          for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 489             ent_menuitem *item = mdl_arritm( &menu.items, i );
 490
 491             if( (item->type != k_ent_menuitem_type_page) &&
 492                 (item->type != k_ent_menuitem_type_visual) &&
 493                 (item->type != k_ent_menuitem_type_visual_nocol) &&
 494                 (item->groups & (0x1<<menu.page)) ){
 495                menu.loc = item;
 496             }
 497          }
 498       }
 499
 500       if( !menu.loc ) vg_fatal_error( "No location\n" );
 501
 502       if( menu.loc->type == k_ent_menuitem_type_slider && menu.loc->pf32 ){
 503          f32 move = 0.0f;
 504
 505          if( vg_input.display_input_method == k_input_method_controller ){
 506             move += button_press( k_srbind_mright );
 507             move -= button_press( k_srbind_mleft );
 508          }
 509          else{
 510             move += axis_state( k_sraxis_mbrowse_h );
 511          }
 512
 513          move *= vg.time_frame_delta;
 514          *menu.loc->pf32 = vg_clampf( *menu.loc->pf32 + move, 0.0f, 1.0f );
 515
 516          mh = 0;
 517       }
 518
 519       if( escape ){
 520          menu_back_page();
 521       }
 522       else if( enter ){
 523          menu_trigger_item( menu.loc );
 524       }
 525       else if( mh||mv ){
 526          v3f opt;
 527          v3_zero( opt );
 528          f32 best = 0.707f;
 529          ent_menuitem *nextpos = NULL;
 530
 531          opt[0] += mh;
 532          opt[2] += mv;
 533          mdl_transform_vector( &menu.cam->transform, opt, opt );
 534
 535          for( u32 i=0; i<4; i++ ){
 536             u32 id = menu.loc->id_links[i];
 537             if( !id ) continue;
 538             u32 index = mdl_entity_id_id( id );
 539
 540             ent_menuitem *other = mdl_arritm( &menu.items, index );
 541             v3f delta;
 542             v3_sub( menu.loc->transform.co, other->transform.co, delta );
 543             v3_normalize( delta );
 544
 545             f32 score = v3_dot( delta, opt );
 546             if( score > best ){
 547                best = score;
 548                nextpos = other;
 549             }
 550          }
 551
 552          if( nextpos ){
 553             menu.loc = nextpos;
 554          }
 555       }
 556    }
 557
 558    menu_setitem_type( menu.ctr_deck, k_ent_menuitem_type_disabled );
 559    menu_setitem_type( menu.ctr_ps, k_ent_menuitem_type_disabled );
 560    menu_setitem_type( menu.ctr_kbm, k_ent_menuitem_type_disabled );
 561    menu_setitem_type( menu.ctr_xbox, k_ent_menuitem_type_disabled );
 562    menu_setitem_type( menu.ctr_steam, k_ent_menuitem_type_disabled );
 563
 564    if( vg_input.display_input_method == k_input_method_kbm )
 565       menu_setitem_type( menu.ctr_kbm, k_ent_menuitem_type_visual_nocol );
 566    else{
 567       if( vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS3 ||
 568           vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS4 ||
 569           vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS5 ){
 570          menu_setitem_type( menu.ctr_ps, k_ent_menuitem_type_visual_nocol );
 571       }
 572       else {
 573          menu_setitem_type( menu.ctr_xbox, k_ent_menuitem_type_visual_nocol );
 574       }
 575       /* FIXME: Steam/Deck controller detection? */
 576    }
 577 }
 578
 579 static void menu_binding_string( char buf[128], u32 pstr );
 580
 581 /*
 582  * Run from vg_gui when active
 583  */
 584 static void menu_render(void){
 585    glEnable(GL_BLEND);
 586    glDisable(GL_DEPTH_TEST);
 587    glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
 588    glBlendEquation(GL_FUNC_ADD);
 589
 590    shader_blitcolour_use();
 591    v4f colour;
 592    ui_hex_to_norm( ui_colour( k_ui_bg+3 ), colour );
 593    colour[3] = 0.5f;
 594
 595    shader_blitcolour_uColour( colour );
 596    render_fsquad();
 597
 598    if( (workshop_form.page != k_workshop_form_hidden) ||
 599        (vg_ui.focused_control_type != k_ui_control_none) ){
 600       return;
 601    }
 602
 603    if( menu.credits_open ){
 604       ui_rect panel = { 0,0, 460, 400 },
 605               screen = { 0,0, vg.window_x,vg.window_y };
 606       ui_rect_center( screen, panel );
 607       ui_fill( panel, ui_colour(k_ui_bg) );
 608       ui_outline( panel, 1, ui_colour(k_ui_fg), 0 );
 609       ui_rect_pad( panel, (ui_px[]){8,8} );
 610
 611       ui_rect title;
 612       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 613       ui_text( title, "Skate Rift - Credits", 2, k_ui_align_middle_center, 0 );
 614       ui_split( panel, k_ui_axis_h, 28, 0, title, panel );
 615       ui_text( title, "Mt.Zero Software", 1, k_ui_align_middle_center, 0 );
 616
 617       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 618       ui_split( panel, k_ui_axis_h, 28, 0, title, panel );
 619       ui_text( title, "A game by Harry Godden", 1,
 620                k_ui_align_middle_center, 0 );
 621
 622       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 623       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 624       ui_text( title, "Free Software", 2, k_ui_align_middle_center, 0 );
 625
 626       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 627       ui_text( panel,
 628             "Sam Lantinga       - SDL2 - libsdl.org\n"
 629             "Hunter WB          - Anyascii\n"
 630             "David Herberth     - GLAD\n"
 631             "Dominic Szablewski - QOI - qoiformat.org\n"
 632             "Sean Barrett       - stb_image,stb_vorbis,stb_include\n"
 633             "Khronos Group      - OpenGL\n"
 634             , 1, k_ui_align_left, 0 );
 635       return;
 636    }
 637
 638    glEnable( GL_DEPTH_TEST );
 639    glDisable( GL_BLEND );
 640
 641    f32 rate = vg.time_frame_delta * 12.0f;
 642
 643    if( menu.cam ){
 644       camera target;
 645
 646       target.fov = menu.cam->fov;
 647       v3_copy( menu.cam->transform.co, target.pos );
 648
 649       v3f v0;
 650       mdl_transform_vector( &menu.cam->transform, (v3f){0.0f,-1.0f,0.0f}, v0 );
 651       player_vector_angles( target.angles, v0, 1.0f, 0.0f );
 652
 653       camera_lerp( &menu.view, &target, rate, &menu.view );
 654
 655       menu.view.farz = 150.0f;
 656       menu.view.nearz = 0.01f;
 657
 658       camera_update_transform( &menu.view );
 659       camera_update_view( &menu.view );
 660       camera_update_projection( &menu.view );
 661       camera_finalize( &menu.view );
 662    }
 663    else return;
 664
 665    shader_model_menu_use();
 666    shader_model_menu_uTexMain( 1 );
 667    glActiveTexture( GL_TEXTURE1 );
 668    glBindTexture( GL_TEXTURE_2D, menu.texture );
 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    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 683       ent_menuitem *item = mdl_arritm( &menu.items, i );
 684
 685       if(   item->type == k_ent_menuitem_type_disabled ) continue;
 686       if(   item->type == k_ent_menuitem_type_page ) continue;
 687       if( !(item->groups & (0x1 << menu.page)) ) continue;
 688
 689       if(   item->type == k_ent_menuitem_type_binding ){
 690          if( text_count < vg_list_size(text_list) )
 691             text_list[ text_count ++ ] = item;
 692          else
 693             vg_fatal_error( "Text list overflow" );
 694
 695          continue;
 696       }
 697
 698       int selected = 0;
 699
 700       if( menu.loc ){
 701          if( menu.loc->type == k_ent_menuitem_type_slider ){
 702             u32 subid = menu.loc->slider.id_handle;
 703             if( item == mdl_arritm( &menu.items, mdl_entity_id_id(subid) ))
 704                selected = 1;
 705          }
 706          else{
 707             if( item == menu.loc )
 708                selected = 1;
 709          }
 710       }
 711
 712       if( item->type == k_ent_menuitem_type_visual_nocol ){
 713          shader_model_menu_uColour( (v4f){1.0f,1.0f,1.0f,1.0f} );
 714       }
 715       else{
 716          v4f colour;
 717          item->factive = vg_lerpf( item->factive, selected, rate );
 718          v4_lerp( white, blue, item->factive, colour );
 719          shader_model_menu_uColour( colour );
 720       }
 721
 722       f32 scale = 1.0f+item->factive*0.1f;
 723
 724       m4x3f mmdl;
 725       mdl_transform transform = item->transform;
 726       v3_muls( transform.s, scale, transform.s );
 727       mdl_transform_m4x3( &transform, mmdl );
 728
 729       if( item->type == k_ent_menuitem_type_toggle && item->pi32 ){
 730          u32 subid = mdl_entity_id_id( item->checkmark.id_check );
 731          ent_menuitem *subitem = mdl_arritm( &menu.items, subid );
 732
 733          v3_muladds( item->transform.co, item->checkmark.offset, scale,
 734                      subitem->transform.co );
 735
 736          subitem->fvisible = vg_lerpf( subitem->fvisible, *item->pi32, rate );
 737          v3_fill( subitem->transform.s, subitem->fvisible );
 738       }
 739       else if( item->type == k_ent_menuitem_type_slider && item->pf32 ){
 740          u32 il = mdl_entity_id_id( item->slider.id_min ),
 741              ir = mdl_entity_id_id( item->slider.id_max ),
 742              ih = mdl_entity_id_id( item->slider.id_handle );
 743          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 744                     *mr = mdl_arritm( &menu.markers, ir );
 745          ent_menuitem *handle = mdl_arritm( &menu.items, ih );
 746
 747          v3_lerp( ml->transform.co, mr->transform.co, *item->pf32,
 748                   handle->transform.co );
 749       }
 750
 751       shader_model_menu_uMdl( mmdl );
 752
 753       for( u32 j=0; j<item->submesh_count; j++ ){
 754          u32 index = item->submesh_start + j;
 755          mdl_draw_submesh( mdl_arritm( &menu.model.submeshs, index ));
 756       }
 757    }
 758
 759    if( !text_count ) return;
 760
 761    char buf[ 128 ];
 762
 763    m4x3f local;
 764    m4x3_identity( local );
 765
 766    font3d_bind( &gui.font, k_font_shader_default, 0, NULL, &menu.view );
 767    for( u32 i=0; i<text_count; i++ ){
 768       ent_menuitem *item = text_list[ i ];
 769       m4x3f transform;
 770       mdl_transform_m4x3( &item->transform, transform );
 771
 772       u32 variant = item->binding.font_variant;
 773       menu_binding_string( buf, item->binding.pstr_bind );
 774       f32 offset = font3d_string_width( variant, buf );
 775
 776       local[3][0] = -0.5f * offset;
 777       m4x3_mul( transform, local, transform );
 778
 779       font3d_simple_draw( variant, buf, &menu.view, transform );
 780    }
 781 }
 782
 783 static void menu_binding_string( char buf[128], u32 pstr ){
 784    vg_str str;
 785    vg_strnull( &str, buf, 128 );
 786
 787    if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_jump" ) ){
 788       vg_input_string( &str, input_button_list[k_srbind_jump], 1 );
 789    }
 790    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick0" ) ){
 791       vg_strcat( &str, "SHUVIT " );
 792       vg_input_string( &str, input_button_list[k_srbind_trick0], 1 );
 793    }
 794    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick1" ) ){
 795       vg_strcat( &str, "KICKFLIP " );
 796       vg_input_string( &str, input_button_list[k_srbind_trick1], 1 );
 797    }
 798    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick2" ) ){
 799       vg_strcat( &str, "TREFLIP " );
 800       vg_input_string( &str, input_button_list[k_srbind_trick2], 1 );
 801    }
 802    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_grab" ) ){
 803       vg_input_string( &str, input_axis_list[k_sraxis_grab], 1 );
 804    }
 805    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_grab_mod" ) ){
 806       vg_input_string( &str, input_joy_list[k_srjoystick_grab], 1 );
 807    }
 808    else
 809       vg_strcat( &str, "error" );
 810 }
 811
 812 #endif /* MENU_H */