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