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_static.active_instance = 0;
 219          world_static.active_trigger_volume_count = 0;
 220          localplayer.viewable_world = world_current_instance();
 221          localplayer_cmd_respawn( 1, (const char *[]){"start"} );
 222          menu_close();
 223       }
 224       else if( MDL_CONST_PSTREQ( &menu.model, q, "credits" ) ){
 225          menu.credits_open = 1;
 226       }
 227       else if( MDL_CONST_PSTREQ( &menu.model, q, "workshop" ) ){
 228          workshop_submit_command(0,NULL);
 229       }
 230    }
 231    else if( item->type == k_ent_menuitem_type_page_button ){
 232       menu_open_page( mdl_pstr( &menu.model, item->button.pstr ) );
 233    }
 234    else if( item->type == k_ent_menuitem_type_toggle ){
 235       if( item->pi32 ){
 236          *item->pi32 = *item->pi32 ^ 0x1;
 237       }
 238    }
 239 }
 240
 241 static f32 menu_slider_snap( f32 value, f32 old, f32 notch )
 242 {
 243    f32 const k_epsilon = 0.0125f;
 244
 245    if( fabsf(notch-value) < k_epsilon ){
 246       if( fabsf(notch-old) > k_epsilon ){
 247          audio_lock();
 248          audio_oneshot( &audio_ui[0], 1.0f, 0.0f );
 249          audio_unlock();
 250       }
 251
 252       return notch;
 253    }
 254    else
 255       return value;
 256 }
 257
 258 /*
 259  * Run from vg_gui every frame
 260  */
 261 static void menu_update(void){
 262    if( workshop_form.page != k_workshop_form_hidden ){
 263       return;
 264    }
 265
 266    int escape = button_down( k_srbind_mback );
 267    if( menu.credits_open ){
 268       if( escape ){
 269          menu.credits_open = 0;
 270       }
 271       return;
 272    }
 273
 274    if( button_down( k_srbind_mopen ) ){
 275       if( skaterift.activity == k_skaterift_default ){
 276          skaterift.activity = k_skaterift_menu;
 277          menu.page = 0xffffffff;
 278          menu_open_page( "Main Menu" );
 279          return;
 280       }
 281    }
 282
 283    if( skaterift.activity != k_skaterift_menu ) return;
 284    enum menu_input_mode prev_mode = menu.input_mode;
 285
 286    /* get buttons inputs
 287     * -------------------------------------------------------------------*/
 288    int ml = button_down( k_srbind_mleft ),
 289        mr = button_down( k_srbind_mright ),
 290        mu = button_down( k_srbind_mup ),
 291        md = button_down( k_srbind_mdown ),
 292        mh = ml-mr,
 293        mv = mu-md,
 294        enter = button_down( k_srbind_maccept );
 295
 296    if( mh||mv||enter ){
 297       menu.input_mode = k_menu_input_mode_keys;
 298    }
 299
 300    /* get mouse inputs
 301     * --------------------------------------------------------------------*/
 302    menu.mouse_dist += v2_length( vg.mouse_delta ); /* TODO: Move to UI */
 303    menu.mouse_track += vg.time_frame_delta;
 304    if( menu.mouse_track > 0.1f ){
 305       menu.mouse_track = fmodf( menu.mouse_track, 0.1f );
 306       if( menu.mouse_dist > 10.0f ){
 307          menu.input_mode = k_menu_input_mode_mouse;
 308          menu.mouse_dist = 0.0f;
 309       }
 310    }
 311
 312    if( ui_clicking(UI_MOUSE_LEFT) || ui_clicking(UI_MOUSE_RIGHT) ){
 313       menu.input_mode = k_menu_input_mode_mouse;
 314    }
 315
 316    if( menu.input_mode == k_menu_input_mode_mouse ){
 317       /*
 318        * handle mouse input
 319        * ------------------------------------------------------------*/
 320       vg_ui.wants_mouse = 1;
 321
 322       /*
 323        * this raycasting is super cumbersome because all the functions were
 324        * designed for other purposes. we dont care though.
 325        */
 326       m4x4f inverse;
 327       m4x4_inv( menu.view.mtx.p, inverse );
 328       v4f coords;
 329       coords[0] = vg_ui.mouse[0];
 330       coords[1] = vg.window_y - vg_ui.mouse[1];
 331       v2_div( coords, (v2f){ vg.window_x, vg.window_y }, coords );
 332       v2_muls( coords, 2.0f, coords );
 333       v2_add( coords, (v2f){-1.0f,-1.0f}, coords );
 334       coords[2] = 1.0f;
 335       coords[3] = 1.0f;
 336       m4x4_mulv( inverse, coords, coords );
 337       v3f ray;
 338       m3x3_mulv( menu.view.transform, coords, ray );
 339       v3_normalize( ray );
 340
 341       if( menu.loc && (menu.loc->type == k_ent_menuitem_type_slider) &&
 342           ui_clicking(UI_MOUSE_LEFT) && menu.loc->pf32 ){
 343
 344          u32 il = mdl_entity_id_id( menu.loc->slider.id_min ),
 345              ir = mdl_entity_id_id( menu.loc->slider.id_max );
 346          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 347                     *mr = mdl_arritm( &menu.markers, ir );
 348
 349          v3f q2;
 350          v3_muladds( menu.view.pos, ray, 100.0f, q2 );
 351
 352          f32 s,t;
 353          v3f c1, c2;
 354          v3f p1, q1, v0;
 355          v3_sub( mr->transform.co, ml->transform.co, v0 );
 356          v3_muladds( ml->transform.co, v0, -1.0f, p1 );
 357          v3_muladds( mr->transform.co, v0,  1.0f, q1 );
 358          closest_segment_segment( p1, q1, menu.view.pos, q2, &s,&t, c1,c2 );
 359
 360          s-=(1.0f/3.0f);
 361          s/=(1.0f/3.0f);
 362
 363          if( ui_click_down(UI_MOUSE_LEFT) ){
 364             menu.slider_offset = *menu.loc->pf32 - s;
 365          }
 366
 367          f32 newvalue = vg_clampf( s+menu.slider_offset, 0.0f, 1.0f );
 368
 369          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.00f );
 370          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 1.00f );
 371          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.25f );
 372          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.50f );
 373          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.75f );
 374
 375          *menu.loc->pf32 = newvalue;
 376          return;
 377       }
 378
 379       ent_menuitem *hit_item = NULL;
 380
 381       for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 382          ent_menuitem *item = mdl_arritm( &menu.items, i );
 383
 384          if( item->type == k_ent_menuitem_type_page ) continue;
 385          if( item->type == k_ent_menuitem_type_visual ) continue;
 386          if( !(item->groups & (0x1<<menu.page)) ) continue;
 387
 388          ent_menuitem *ray_item = item;
 389
 390          if( item->type == k_ent_menuitem_type_slider ){
 391             u32 subtarget = mdl_entity_id_id( item->slider.id_handle );
 392             ray_item = mdl_arritm( &menu.items, subtarget );
 393          }
 394
 395          v3f local_ray,
 396              local_co;
 397
 398          m4x3f inverse_mtx;
 399          mdl_transform_m4x3( &ray_item->transform, inverse_mtx );
 400          m4x3_invert_full( inverse_mtx, inverse_mtx );
 401
 402          m4x3_mulv( inverse_mtx, menu.view.transform[3], local_co );
 403          m3x3_mulv( inverse_mtx, ray, local_ray );
 404          v3_normalize( local_ray );
 405
 406          local_ray[0] = 1.0f/local_ray[0];
 407          local_ray[1] = 1.0f/local_ray[1];
 408          local_ray[2] = 1.0f/local_ray[2];
 409
 410          for( u32 j=0; j<ray_item->submesh_count; j++ ){
 411             mdl_submesh *sm = mdl_arritm( &menu.model.submeshs,
 412                                            ray_item->submesh_start + j );
 413             if( ray_aabb1( sm->bbx, local_co, local_ray, 1000.0f ) ){
 414                hit_item = item;
 415                break;
 416             }
 417          }
 418       }
 419
 420       if( hit_item != menu.loc ){
 421          menu.loc = hit_item;
 422       }
 423
 424       if( escape ){
 425          menu_back_page();
 426       }
 427       else if( menu.loc ){
 428          if( ui_click_down( UI_MOUSE_LEFT ) ){
 429             menu_trigger_item( menu.loc );
 430          }
 431       }
 432    }
 433    else if( menu.input_mode == k_menu_input_mode_keys ){
 434       /*
 435        * handle button input
 436        * ------------------------------------------------------------*/
 437       if( (prev_mode != k_menu_input_mode_keys) && !menu.loc ){
 438          for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 439             ent_menuitem *item = mdl_arritm( &menu.items, i );
 440
 441             if( (item->type != k_ent_menuitem_type_page) &&
 442                 (item->type != k_ent_menuitem_type_visual) &&
 443                 (item->groups & (0x1<<menu.page)) ){
 444                menu.loc = item;
 445             }
 446          }
 447       }
 448
 449       if( !menu.loc ) vg_fatal_error( "No location\n" );
 450
 451       if( menu.loc->type == k_ent_menuitem_type_slider && menu.loc->pf32 ){
 452          f32 move = 0.0f;
 453
 454          if( vg_input.display_input_method == k_input_method_controller ){
 455             move += button_press( k_srbind_mright );
 456             move -= button_press( k_srbind_mleft );
 457          }
 458          else{
 459             move += axis_state( k_sraxis_mbrowse_h );
 460          }
 461
 462          move *= vg.time_frame_delta;
 463          *menu.loc->pf32 = vg_clampf( *menu.loc->pf32 + move, 0.0f, 1.0f );
 464
 465          mh = 0;
 466       }
 467
 468       if( escape ){
 469          menu_back_page();
 470       }
 471       else if( enter ){
 472          menu_trigger_item( menu.loc );
 473       }
 474       else if( mh||mv ){
 475          v3f opt;
 476          v3_zero( opt );
 477          f32 best = 0.707f;
 478          ent_menuitem *nextpos = NULL;
 479
 480          opt[0] += mh;
 481          opt[2] += mv;
 482          mdl_transform_vector( &menu.cam->transform, opt, opt );
 483
 484          for( u32 i=0; i<4; i++ ){
 485             u32 id = menu.loc->id_links[i];
 486             if( !id ) continue;
 487             u32 index = mdl_entity_id_id( id );
 488
 489             ent_menuitem *other = mdl_arritm( &menu.items, index );
 490             v3f delta;
 491             v3_sub( menu.loc->transform.co, other->transform.co, delta );
 492             v3_normalize( delta );
 493
 494             f32 score = v3_dot( delta, opt );
 495             if( score > best ){
 496                best = score;
 497                nextpos = other;
 498             }
 499          }
 500
 501          if( nextpos ){
 502             menu.loc = nextpos;
 503          }
 504       }
 505    }
 506 }
 507
 508 /*
 509  * Run from vg_gui when active
 510  */
 511 VG_STATIC void menu_render(void){
 512    glEnable(GL_BLEND);
 513    glDisable(GL_DEPTH_TEST);
 514    glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
 515    glBlendEquation(GL_FUNC_ADD);
 516
 517    shader_blitcolour_use();
 518    v4f colour;
 519    ui_hex_to_norm( ui_colour( k_ui_bg+3 ), colour );
 520    colour[3] = 0.5f;
 521
 522    shader_blitcolour_uColour( colour );
 523    render_fsquad();
 524
 525    if( (workshop_form.page != k_workshop_form_hidden) ||
 526        (vg_ui.focused_control_type != k_ui_control_none) ){
 527       return;
 528    }
 529
 530    if( menu.credits_open ){
 531       ui_rect panel = { 0,0, 460, 400 },
 532               screen = { 0,0, vg.window_x,vg.window_y };
 533       ui_rect_center( screen, panel );
 534       ui_fill( panel, ui_colour(k_ui_bg) );
 535       ui_outline( panel, 1, ui_colour(k_ui_fg) );
 536       ui_rect_pad( panel, (ui_px[]){8,8} );
 537
 538       ui_rect title;
 539       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 540       ui_text( title, "Skate Rift - Credits", 2, k_ui_align_middle_center, 0 );
 541       ui_split( panel, k_ui_axis_h, 28, 0, title, panel );
 542       ui_text( title, "Mt.Zero Software", 1, k_ui_align_middle_center, 0 );
 543
 544       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 545       ui_split( panel, k_ui_axis_h, 28, 0, title, panel );
 546       ui_text( title, "A game by Harry Godden", 1,
 547                k_ui_align_middle_center, 0 );
 548
 549       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 550       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 551       ui_text( title, "Free Software", 2, k_ui_align_middle_center, 0 );
 552
 553       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 554       ui_text( panel,
 555             "Sam Lantinga       - SDL2 - libsdl.org\n"
 556             "Hunter WB          - Anyascii\n"
 557             "David Herberth     - GLAD\n"
 558             "Dominic Szablewski - QOI - qoiformat.org\n"
 559             "Sean Barrett       - stb_image,stb_vorbis,stb_include\n"
 560             "Khronos Group      - OpenGL\n"
 561             , 1, k_ui_align_left, 0 );
 562       return;
 563    }
 564
 565    glEnable( GL_DEPTH_TEST );
 566    glDisable( GL_BLEND );
 567
 568    f32 rate = vg.time_frame_delta * 12.0f;
 569
 570    if( menu.cam ){
 571       camera target;
 572
 573       target.fov = menu.cam->fov;
 574       v3_copy( menu.cam->transform.co, target.pos );
 575
 576       v3f v0;
 577       mdl_transform_vector( &menu.cam->transform, (v3f){0.0f,-1.0f,0.0f}, v0 );
 578       player_vector_angles( target.angles, v0, 1.0f, 0.0f );
 579
 580       camera_lerp( &menu.view, &target, rate, &menu.view );
 581
 582       menu.view.farz = 150.0f;
 583       menu.view.nearz = 0.01f;
 584
 585       camera_update_transform( &menu.view );
 586       camera_update_view( &menu.view );
 587       camera_update_projection( &menu.view );
 588       camera_finalize( &menu.view );
 589    }
 590    else return;
 591
 592    shader_model_menu_use();
 593    shader_model_menu_uTexMain( 1 );
 594    glActiveTexture( GL_TEXTURE1 );
 595    glBindTexture( GL_TEXTURE_2D, menu.texture );
 596    shader_model_menu_uPv( menu.view.mtx.pv );
 597    shader_model_menu_uPvmPrev( menu.view.mtx_prev.pv );
 598
 599    mesh_bind( &menu.mesh );
 600
 601    v4f white, blue;
 602
 603    ui_hex_to_norm( ui_colour( k_ui_fg ), white );
 604    ui_hex_to_norm( ui_colour( k_ui_orange+k_ui_brighter ), blue );
 605
 606    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 607       ent_menuitem *item = mdl_arritm( &menu.items, i );
 608
 609       if(   item->type == k_ent_menuitem_type_page ) continue;
 610       if( !(item->groups & (0x1 << menu.page)) ) continue;
 611
 612       int selected = 0;
 613
 614       if( menu.loc ){
 615          if( menu.loc->type == k_ent_menuitem_type_slider ){
 616             u32 subid = menu.loc->slider.id_handle;
 617             if( item == mdl_arritm( &menu.items, mdl_entity_id_id(subid) ))
 618                selected = 1;
 619          }
 620          else{
 621             if( item == menu.loc )
 622                selected = 1;
 623          }
 624       }
 625
 626       item->factive = vg_lerpf( item->factive, selected, rate );
 627       v4f colour;
 628       v4_lerp( white, blue, item->factive, colour );
 629       shader_model_menu_uColour( colour );
 630
 631       f32 scale = 1.0f+item->factive*0.1f;
 632
 633       m4x3f mmdl;
 634       mdl_transform transform = item->transform;
 635       v3_muls( transform.s, scale, transform.s );
 636       mdl_transform_m4x3( &transform, mmdl );
 637
 638       if( item->type == k_ent_menuitem_type_toggle && item->pi32 ){
 639          u32 subid = mdl_entity_id_id( item->checkmark.id_check );
 640          ent_menuitem *subitem = mdl_arritm( &menu.items, subid );
 641
 642          v3_muladds( item->transform.co, item->checkmark.offset, scale,
 643                      subitem->transform.co );
 644
 645          subitem->fvisible = vg_lerpf( subitem->fvisible, *item->pi32, rate );
 646          v3_fill( subitem->transform.s, subitem->fvisible );
 647       }
 648       else if( item->type == k_ent_menuitem_type_slider && item->pf32 ){
 649          u32 il = mdl_entity_id_id( item->slider.id_min ),
 650              ir = mdl_entity_id_id( item->slider.id_max ),
 651              ih = mdl_entity_id_id( item->slider.id_handle );
 652          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 653                     *mr = mdl_arritm( &menu.markers, ir );
 654          ent_menuitem *handle = mdl_arritm( &menu.items, ih );
 655
 656          v3_lerp( ml->transform.co, mr->transform.co, *item->pf32,
 657                   handle->transform.co );
 658       }
 659
 660       shader_model_menu_uMdl( mmdl );
 661
 662       for( u32 j=0; j<item->submesh_count; j++ ){
 663          u32 index = item->submesh_start + j;
 664          mdl_draw_submesh( mdl_arritm( &menu.model.submeshs, index ));
 665       }
 666    }
 667 }
 668
 669 #endif /* MENU_H */