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 "world_map.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       else if( MDL_CONST_PSTREQ( &menu.model, q, "map" ) ){
 254          menu_close();
 255          world_map_enter();
 256       }
 257       else if( MDL_CONST_PSTREQ( &menu.model, q, "hub" ) ){
 258          if( world_static.active_instance == k_world_purpose_client ){
 259             menu_close();
 260             ent_miniworld_goback();
 261          }
 262       }
 263       else if( MDL_CONST_PSTREQ( &menu.model, q, "credits" ) ){
 264          menu.credits_open = 1;
 265       }
 266       else if( MDL_CONST_PSTREQ( &menu.model, q, "workshop" ) ){
 267          workshop_submit_command(0,NULL);
 268       }
 269       else if( MDL_CONST_PSTREQ( &menu.model, q, "engine" ) ){
 270          vg_settings_open();
 271       }
 272       else if( MDL_CONST_PSTREQ( &menu.model, q, "prem_store" ) ){
 273          if( steam_ready )
 274             SteamAPI_ISteamFriends_ActivateGameOverlayToStore(
 275                   SteamAPI_SteamFriends(), 2103940, k_EOverlayToStoreFlag_None);
 276       }
 277       else if( MDL_CONST_PSTREQ( &menu.model, q, "prem_nevermind" ) ){
 278          menu_close();
 279       }
 280    }
 281    else if( item->type == k_ent_menuitem_type_page_button ){
 282       menu_open_page( mdl_pstr( &menu.model, item->button.pstr ),
 283                       item->button.stack_behaviour );
 284    }
 285    else if( item->type == k_ent_menuitem_type_toggle ){
 286       if( item->pi32 ){
 287          *item->pi32 = *item->pi32 ^ 0x1;
 288       }
 289    }
 290 }
 291
 292 static f32 menu_slider_snap( f32 value, f32 old, f32 notch ){
 293    f32 const k_epsilon = 0.0125f;
 294
 295    if( fabsf(notch-value) < k_epsilon ){
 296       if( fabsf(notch-old) > k_epsilon ){
 297          audio_lock();
 298          audio_oneshot( &audio_ui[0], 1.0f, 0.0f );
 299          audio_unlock();
 300       }
 301
 302       return notch;
 303    }
 304    else
 305       return value;
 306 }
 307
 308 static void menu_setitem_type( ent_menuitem *item,
 309                                enum ent_menuitem_type type ){
 310    if( !item ) return;
 311    item->type = type;
 312 }
 313
 314 /*
 315  * Run from vg_gui every frame
 316  */
 317 static void menu_update(void){
 318    if( workshop_form.page != k_workshop_form_hidden ){
 319       return;
 320    }
 321
 322    int escape = button_down( k_srbind_mback );
 323    if( menu.credits_open || vg.settings_open ){
 324       if( escape ){
 325          menu.credits_open = 0;
 326
 327          if( vg.settings_open )
 328             vg_settings_close();
 329       }
 330       return;
 331    }
 332
 333    if( button_down( k_srbind_mopen ) ){
 334       if( skaterift.activity == k_skaterift_default ){
 335          skaterift.activity = k_skaterift_menu;
 336          menu.page = 0xffffffff;
 337          menu_open_page( "Main Menu", k_ent_menuitem_stack_append );
 338          return;
 339       }
 340    }
 341
 342    if( skaterift.activity != k_skaterift_menu ) return;
 343    enum menu_input_mode prev_mode = menu.input_mode;
 344
 345    /* get buttons inputs
 346     * -------------------------------------------------------------------*/
 347    int ml = button_down( k_srbind_mleft ),
 348        mr = button_down( k_srbind_mright ),
 349        mu = button_down( k_srbind_mup ),
 350        md = button_down( k_srbind_mdown ),
 351        mh = ml-mr,
 352        mv = mu-md,
 353        enter = button_down( k_srbind_maccept );
 354
 355    if( mh||mv||enter ){
 356       menu.input_mode = k_menu_input_mode_keys;
 357    }
 358
 359    /* get mouse inputs
 360     * --------------------------------------------------------------------*/
 361    menu.mouse_dist += v2_length( vg.mouse_delta ); /* TODO: Move to UI */
 362    menu.mouse_track += vg.time_frame_delta;
 363    if( menu.mouse_track > 0.1f ){
 364       menu.mouse_track = fmodf( menu.mouse_track, 0.1f );
 365       if( menu.mouse_dist > 10.0f ){
 366          menu.input_mode = k_menu_input_mode_mouse;
 367          menu.mouse_dist = 0.0f;
 368       }
 369    }
 370
 371    if( ui_clicking(UI_MOUSE_LEFT) || ui_clicking(UI_MOUSE_RIGHT) ){
 372       menu.input_mode = k_menu_input_mode_mouse;
 373    }
 374
 375    if( menu.input_mode == k_menu_input_mode_mouse ){
 376       /*
 377        * handle mouse input
 378        * ------------------------------------------------------------*/
 379       vg_ui.wants_mouse = 1;
 380
 381       /*
 382        * this raycasting is super cumbersome because all the functions were
 383        * designed for other purposes. we dont care though.
 384        */
 385       m4x4f inverse;
 386       m4x4_inv( menu.view.mtx.p, inverse );
 387       v4f coords;
 388       coords[0] = vg_ui.mouse[0];
 389       coords[1] = vg.window_y - vg_ui.mouse[1];
 390       v2_div( coords, (v2f){ vg.window_x, vg.window_y }, coords );
 391       v2_muls( coords, 2.0f, coords );
 392       v2_add( coords, (v2f){-1.0f,-1.0f}, coords );
 393       coords[2] = 1.0f;
 394       coords[3] = 1.0f;
 395       m4x4_mulv( inverse, coords, coords );
 396       v3f ray;
 397       m3x3_mulv( menu.view.transform, coords, ray );
 398       v3_normalize( ray );
 399
 400       if( menu.loc && (menu.loc->type == k_ent_menuitem_type_slider) &&
 401           ui_clicking(UI_MOUSE_LEFT) && menu.loc->pf32 ){
 402
 403          u32 il = mdl_entity_id_id( menu.loc->slider.id_min ),
 404              ir = mdl_entity_id_id( menu.loc->slider.id_max );
 405          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 406                     *mr = mdl_arritm( &menu.markers, ir );
 407
 408          v3f q2;
 409          v3_muladds( menu.view.pos, ray, 100.0f, q2 );
 410
 411          f32 s,t;
 412          v3f c1, c2;
 413          v3f p1, q1, v0;
 414          v3_sub( mr->transform.co, ml->transform.co, v0 );
 415          v3_muladds( ml->transform.co, v0, -1.0f, p1 );
 416          v3_muladds( mr->transform.co, v0,  1.0f, q1 );
 417          closest_segment_segment( p1, q1, menu.view.pos, q2, &s,&t, c1,c2 );
 418
 419          s-=(1.0f/3.0f);
 420          s/=(1.0f/3.0f);
 421
 422          if( ui_click_down(UI_MOUSE_LEFT) ){
 423             menu.slider_offset = *menu.loc->pf32 - s;
 424          }
 425
 426          f32 newvalue = vg_clampf( s+menu.slider_offset, 0.0f, 1.0f );
 427
 428          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.00f );
 429          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 1.00f );
 430          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.25f );
 431          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.50f );
 432          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.75f );
 433
 434          *menu.loc->pf32 = newvalue;
 435          return;
 436       }
 437
 438       ent_menuitem *hit_item = NULL;
 439
 440       for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 441          ent_menuitem *item = mdl_arritm( &menu.items, i );
 442
 443          if( item->type == k_ent_menuitem_type_page ) continue;
 444          if( (item->type == k_ent_menuitem_type_visual) ||
 445              (item->type == k_ent_menuitem_type_visual_nocol) ) continue;
 446          if( item->type == k_ent_menuitem_type_binding ) continue;
 447          if( !(item->groups & (0x1<<menu.page)) ) continue;
 448
 449          ent_menuitem *ray_item = item;
 450
 451          if( item->type == k_ent_menuitem_type_slider ){
 452             u32 subtarget = mdl_entity_id_id( item->slider.id_handle );
 453             ray_item = mdl_arritm( &menu.items, subtarget );
 454          }
 455
 456          v3f local_ray,
 457              local_co;
 458
 459          m4x3f inverse_mtx;
 460          mdl_transform_m4x3( &ray_item->transform, inverse_mtx );
 461          m4x3_invert_full( inverse_mtx, inverse_mtx );
 462
 463          m4x3_mulv( inverse_mtx, menu.view.transform[3], local_co );
 464          m3x3_mulv( inverse_mtx, ray, local_ray );
 465          v3_normalize( local_ray );
 466
 467          local_ray[0] = 1.0f/local_ray[0];
 468          local_ray[1] = 1.0f/local_ray[1];
 469          local_ray[2] = 1.0f/local_ray[2];
 470
 471          for( u32 j=0; j<ray_item->submesh_count; j++ ){
 472             mdl_submesh *sm = mdl_arritm( &menu.model.submeshs,
 473                                            ray_item->submesh_start + j );
 474             if( ray_aabb1( sm->bbx, local_co, local_ray, 1000.0f ) ){
 475                hit_item = item;
 476                break;
 477             }
 478          }
 479       }
 480
 481       if( hit_item != menu.loc ){
 482          menu.loc = hit_item;
 483       }
 484
 485       if( escape ){
 486          menu_back_page();
 487       }
 488       else if( menu.loc ){
 489          if( ui_click_down( UI_MOUSE_LEFT ) ){
 490             menu_trigger_item( menu.loc );
 491          }
 492       }
 493    }
 494    else if( menu.input_mode == k_menu_input_mode_keys ){
 495       /*
 496        * handle button input
 497        * ------------------------------------------------------------*/
 498       if( (prev_mode != k_menu_input_mode_keys) && !menu.loc ){
 499          for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 500             ent_menuitem *item = mdl_arritm( &menu.items, i );
 501
 502             if( (item->type != k_ent_menuitem_type_page) &&
 503                 (item->type != k_ent_menuitem_type_visual) &&
 504                 (item->type != k_ent_menuitem_type_visual_nocol) &&
 505                 (item->groups & (0x1<<menu.page)) ){
 506                menu.loc = item;
 507             }
 508          }
 509       }
 510
 511       if( !menu.loc ) vg_fatal_error( "No location\n" );
 512
 513       if( menu.loc->type == k_ent_menuitem_type_slider && menu.loc->pf32 ){
 514          f32 move = 0.0f;
 515
 516          if( vg_input.display_input_method == k_input_method_controller ){
 517             move += button_press( k_srbind_mright );
 518             move -= button_press( k_srbind_mleft );
 519          }
 520          else{
 521             move += axis_state( k_sraxis_mbrowse_h );
 522          }
 523
 524          move *= vg.time_frame_delta;
 525          *menu.loc->pf32 = vg_clampf( *menu.loc->pf32 + move, 0.0f, 1.0f );
 526
 527          mh = 0;
 528       }
 529
 530       if( escape ){
 531          menu_back_page();
 532       }
 533       else if( enter ){
 534          menu_trigger_item( menu.loc );
 535       }
 536       else if( mh||mv ){
 537          v3f opt;
 538          v3_zero( opt );
 539          f32 best = 0.707f;
 540          ent_menuitem *nextpos = NULL;
 541
 542          opt[0] += mh;
 543          opt[2] += mv;
 544          mdl_transform_vector( &menu.cam->transform, opt, opt );
 545
 546          for( u32 i=0; i<4; i++ ){
 547             u32 id = menu.loc->id_links[i];
 548             if( !id ) continue;
 549             u32 index = mdl_entity_id_id( id );
 550
 551             ent_menuitem *other = mdl_arritm( &menu.items, index );
 552             v3f delta;
 553             v3_sub( menu.loc->transform.co, other->transform.co, delta );
 554             v3_normalize( delta );
 555
 556             f32 score = v3_dot( delta, opt );
 557             if( score > best ){
 558                best = score;
 559                nextpos = other;
 560             }
 561          }
 562
 563          if( nextpos ){
 564             menu.loc = nextpos;
 565          }
 566       }
 567    }
 568
 569    menu_setitem_type( menu.ctr_deck, k_ent_menuitem_type_disabled );
 570    menu_setitem_type( menu.ctr_ps, k_ent_menuitem_type_disabled );
 571    menu_setitem_type( menu.ctr_kbm, k_ent_menuitem_type_disabled );
 572    menu_setitem_type( menu.ctr_xbox, k_ent_menuitem_type_disabled );
 573    menu_setitem_type( menu.ctr_steam, k_ent_menuitem_type_disabled );
 574
 575    if( vg_input.display_input_method == k_input_method_kbm )
 576       menu_setitem_type( menu.ctr_kbm, k_ent_menuitem_type_visual_nocol );
 577    else{
 578       if( vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS3 ||
 579           vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS4 ||
 580           vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS5 ){
 581          menu_setitem_type( menu.ctr_ps, k_ent_menuitem_type_visual_nocol );
 582       }
 583       else {
 584          menu_setitem_type( menu.ctr_xbox, k_ent_menuitem_type_visual_nocol );
 585       }
 586       /* FIXME: Steam/Deck controller detection? */
 587    }
 588 }
 589
 590 static void menu_binding_string( char buf[128], u32 pstr );
 591
 592 /*
 593  * Run from vg_gui when active
 594  */
 595 static void menu_render(void){
 596    glEnable(GL_BLEND);
 597    glDisable(GL_DEPTH_TEST);
 598    glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
 599    glBlendEquation(GL_FUNC_ADD);
 600
 601    shader_blitcolour_use();
 602    v4f colour;
 603    ui_hex_to_norm( ui_colour( k_ui_bg+3 ), colour );
 604    colour[3] = 0.5f;
 605
 606    shader_blitcolour_uColour( colour );
 607    render_fsquad();
 608
 609    if( (workshop_form.page != k_workshop_form_hidden) ||
 610        (vg_ui.focused_control_type != k_ui_control_none) ){
 611       return;
 612    }
 613
 614    if( vg.settings_open )
 615       return;
 616
 617    if( menu.credits_open ){
 618       ui_rect panel = { 0,0, 460, 400 },
 619               screen = { 0,0, vg.window_x,vg.window_y };
 620       ui_rect_center( screen, panel );
 621       ui_fill( panel, ui_colour(k_ui_bg) );
 622       ui_outline( panel, 1, ui_colour(k_ui_fg), 0 );
 623       ui_rect_pad( panel, (ui_px[]){8,8} );
 624
 625       ui_rect title;
 626       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 627       ui_text( title, "Skate Rift - Credits", 2, k_ui_align_middle_center, 0 );
 628       ui_split( panel, k_ui_axis_h, 28, 0, title, panel );
 629       ui_text( title, "Mt.Zero Software", 1, k_ui_align_middle_center, 0 );
 630
 631       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 632       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 633       ui_text( title, "Free Software", 2, k_ui_align_middle_center, 0 );
 634
 635       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 636       ui_text( panel,
 637             "Sam Lantinga       - SDL2 - libsdl.org\n"
 638             "Hunter WB          - Anyascii\n"
 639             "David Herberth     - GLAD\n"
 640             "Dominic Szablewski - QOI - qoiformat.org\n"
 641             "Sean Barrett       - stb_image,stb_vorbis,stb_include\n"
 642             "Khronos Group      - OpenGL\n"
 643             , 1, k_ui_align_left, 0 );
 644       return;
 645    }
 646
 647    glEnable( GL_DEPTH_TEST );
 648    glDisable( GL_BLEND );
 649
 650    f32 rate = vg.time_frame_delta * 12.0f;
 651
 652    if( menu.cam ){
 653       camera target;
 654
 655       target.fov = menu.cam->fov;
 656       v3_copy( menu.cam->transform.co, target.pos );
 657
 658       v3f v0;
 659       mdl_transform_vector( &menu.cam->transform, (v3f){0.0f,-1.0f,0.0f}, v0 );
 660       v3_angles( v0, target.angles );
 661
 662       camera_lerp( &menu.view, &target, rate, &menu.view );
 663
 664       menu.view.farz = 150.0f;
 665       menu.view.nearz = 0.01f;
 666
 667       camera_update_transform( &menu.view );
 668       camera_update_view( &menu.view );
 669       camera_update_projection( &menu.view );
 670       camera_finalize( &menu.view );
 671    }
 672    else return;
 673
 674    shader_model_menu_use();
 675    shader_model_menu_uTexMain( 1 );
 676    shader_model_menu_uPv( menu.view.mtx.pv );
 677    shader_model_menu_uPvmPrev( menu.view.mtx_prev.pv );
 678
 679    mesh_bind( &menu.mesh );
 680
 681    v4f white, blue;
 682
 683    ui_hex_to_norm( ui_colour( k_ui_fg ), white );
 684    ui_hex_to_norm( ui_colour( k_ui_orange+k_ui_brighter ), blue );
 685
 686    ent_menuitem *text_list[ 8 ];
 687    u32 text_count = 0;
 688
 689    u32 current_tex = 0xffffffff;
 690
 691    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 692       ent_menuitem *item = mdl_arritm( &menu.items, i );
 693
 694       if(   item->type == k_ent_menuitem_type_disabled ) continue;
 695       if(   item->type == k_ent_menuitem_type_page ) continue;
 696       if( !(item->groups & (0x1 << menu.page)) ) continue;
 697
 698       if(   item->type == k_ent_menuitem_type_binding ){
 699          if( text_count < vg_list_size(text_list) )
 700             text_list[ text_count ++ ] = item;
 701          else
 702             vg_fatal_error( "Text list overflow" );
 703
 704          continue;
 705       }
 706
 707       int selected = 0;
 708
 709       if( menu.loc ){
 710          if( menu.loc->type == k_ent_menuitem_type_slider ){
 711             u32 subid = menu.loc->slider.id_handle;
 712             if( item == mdl_arritm( &menu.items, mdl_entity_id_id(subid) ))
 713                selected = 1;
 714          }
 715          else{
 716             if( item == menu.loc )
 717                selected = 1;
 718          }
 719       }
 720
 721       if( item->type == k_ent_menuitem_type_visual_nocol ){
 722          shader_model_menu_uColour( (v4f){1.0f,1.0f,1.0f,1.0f} );
 723       }
 724       else{
 725          v4f colour;
 726          item->factive = vg_lerpf( item->factive, selected, rate );
 727          v4_lerp( white, blue, item->factive, colour );
 728          shader_model_menu_uColour( colour );
 729       }
 730
 731       f32 scale = 1.0f+item->factive*0.1f;
 732
 733       m4x3f mmdl;
 734       mdl_transform transform = item->transform;
 735       v3_muls( transform.s, scale, transform.s );
 736       mdl_transform_m4x3( &transform, mmdl );
 737
 738       if( item->type == k_ent_menuitem_type_toggle && item->pi32 ){
 739          u32 subid = mdl_entity_id_id( item->checkmark.id_check );
 740          ent_menuitem *subitem = mdl_arritm( &menu.items, subid );
 741
 742          v3_muladds( item->transform.co, item->checkmark.offset, scale,
 743                      subitem->transform.co );
 744
 745          subitem->fvisible = vg_lerpf( subitem->fvisible, *item->pi32, rate );
 746          v3_fill( subitem->transform.s, subitem->fvisible );
 747       }
 748       else if( item->type == k_ent_menuitem_type_slider && item->pf32 ){
 749          u32 il = mdl_entity_id_id( item->slider.id_min ),
 750              ir = mdl_entity_id_id( item->slider.id_max ),
 751              ih = mdl_entity_id_id( item->slider.id_handle );
 752          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 753                     *mr = mdl_arritm( &menu.markers, ir );
 754          ent_menuitem *handle = mdl_arritm( &menu.items, ih );
 755
 756          v3_lerp( ml->transform.co, mr->transform.co, *item->pf32,
 757                   handle->transform.co );
 758       }
 759
 760       shader_model_menu_uMdl( mmdl );
 761
 762       for( u32 j=0; j<item->submesh_count; j++ ){
 763          u32 index = item->submesh_start + j;
 764          mdl_submesh *sm = mdl_arritm( &menu.model.submeshs, index );
 765
 766          mdl_material *mat = mdl_arritm( &menu.model.materials,
 767                                          sm->material_id-1 );
 768
 769          if( mat->tex_diffuse != current_tex ){
 770             glActiveTexture( GL_TEXTURE1 );
 771             glBindTexture( GL_TEXTURE_2D, menu.textures[ mat->tex_diffuse ] );
 772             current_tex = mat->tex_diffuse;
 773          }
 774
 775          mdl_draw_submesh( sm );
 776       }
 777    }
 778
 779    if( !text_count ) return;
 780
 781    char buf[ 128 ];
 782
 783    m4x3f local;
 784    m4x3_identity( local );
 785
 786    font3d_bind( &gui.font, k_font_shader_default, 0, NULL, &menu.view );
 787    for( u32 i=0; i<text_count; i++ ){
 788       ent_menuitem *item = text_list[ i ];
 789       m4x3f transform;
 790       mdl_transform_m4x3( &item->transform, transform );
 791
 792       u32 variant = item->binding.font_variant;
 793       menu_binding_string( buf, item->binding.pstr_bind );
 794       f32 offset = font3d_string_width( variant, buf );
 795
 796       local[3][0] = -0.5f * offset;
 797       m4x3_mul( transform, local, transform );
 798
 799       font3d_simple_draw( variant, buf, &menu.view, transform );
 800    }
 801 }
 802
 803 static void menu_binding_string( char buf[128], u32 pstr ){
 804    vg_str str;
 805    vg_strnull( &str, buf, 128 );
 806
 807    if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_jump" ) ){
 808       vg_input_string( &str, input_button_list[k_srbind_jump], 1 );
 809    }
 810    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick0" ) ){
 811       vg_strcat( &str, "SHUVIT " );
 812       vg_input_string( &str, input_button_list[k_srbind_trick0], 1 );
 813    }
 814    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick1" ) ){
 815       vg_strcat( &str, "KICKFLIP " );
 816       vg_input_string( &str, input_button_list[k_srbind_trick1], 1 );
 817    }
 818    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick2" ) ){
 819       vg_strcat( &str, "TREFLIP " );
 820       vg_input_string( &str, input_button_list[k_srbind_trick2], 1 );
 821    }
 822    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_grab" ) ){
 823       vg_input_string( &str, input_axis_list[k_sraxis_grab], 1 );
 824    }
 825    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_grab_mod" ) ){
 826       vg_input_string( &str, input_joy_list[k_srjoystick_grab], 1 );
 827    }
 828    else
 829       vg_strcat( &str, "error" );
 830 }
 831
 832 #endif /* MENU_H */