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 active, credits_open;
  17    f32 factive;
  18    int disable_open;
  19
  20    u32 page, /* current page index */
  21        page_depth;
  22
  23    enum menu_input_mode{
  24       k_menu_input_mode_keys,
  25       k_menu_input_mode_mouse
  26    }
  27    input_mode;
  28    f32 mouse_track, mouse_dist;  /* used for waking up mouse */
  29    f32 slider_offset;
  30
  31    struct page_stack_frame {
  32       u32 page;
  33       ent_menuitem *loc;
  34       ent_camera *cam;
  35    }
  36    page_stack[ MENU_STACK_SIZE ];
  37
  38    ent_menuitem *loc;
  39    ent_camera   *cam;
  40    camera        view;
  41
  42    mdl_context model;
  43    GLuint texture;
  44    glmesh mesh;
  45
  46    mdl_array_ptr items, markers, cameras;
  47 }
  48 static menu;
  49
  50 /*
  51  * Attaches memory locations to the various items in the menu
  52  */
  53 static void menu_link(void)
  54 {
  55    /* link data locations */
  56    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
  57       ent_menuitem *item = mdl_arritm( &menu.items, i );
  58
  59       if( item->type == k_ent_menuitem_type_toggle ||
  60           item->type == k_ent_menuitem_type_slider ){
  61
  62          const char *name;
  63
  64          if( item->type == k_ent_menuitem_type_slider )
  65             name = mdl_pstr( &menu.model, item->slider.pstr_data );
  66          else
  67             name = mdl_pstr( &menu.model, item->checkmark.pstr_data );
  68          vg_var *var = vg_console_match_var( name );
  69
  70          if( var ){
  71             if( ( item->type == k_ent_menuitem_type_slider &&
  72                   var->data_type != k_var_dtype_f32
  73                 ) ||
  74                 ( item->type == k_ent_menuitem_type_toggle &&!
  75                   ( var->data_type == k_var_dtype_i32 ||
  76                     var->data_type == k_var_dtype_u32
  77                   )
  78                )
  79             ){
  80                vg_error( "Cannot hook to data %s(%p), because it is type %d.\n",
  81                            name, var, var->data_type );
  82                item->pvoid = NULL;
  83             }
  84             else{
  85                item->pvoid = var->data;
  86             }
  87          }
  88          else{
  89             vg_error( "No data named %s\n", name );
  90             item->pvoid = NULL;
  91          }
  92       }
  93       else{
  94          item->pvoid = NULL;
  95       }
  96    }
  97 }
  98
  99 static void menu_init(void)
 100 {
 101    void *alloc = vg_mem.rtmemory;
 102
 103    mdl_open( &menu.model, "models/rs_menu.mdl", alloc );
 104    mdl_load_metadata_block( &menu.model, alloc );
 105
 106    vg_linear_clear( vg_mem.scratch );
 107
 108    mdl_load_array( &menu.model, &menu.items,   "ent_menuitem", alloc );
 109    mdl_load_array( &menu.model, &menu.markers, "ent_marker", alloc );
 110    mdl_load_array( &menu.model, &menu.cameras, "ent_camera", alloc );
 111
 112    vg_linear_clear( vg_mem.scratch );
 113
 114    if( !mdl_arrcount( &menu.model.textures ) )
 115       vg_fatal_error( "No texture in menu file" );
 116
 117    mdl_texture *tex0 = mdl_arritm( &menu.model.textures, 0 );
 118    void *data = vg_linear_alloc( vg_mem.scratch, tex0->file.pack_size );
 119    mdl_fread_pack_file( &menu.model, &tex0->file, data );
 120
 121    mdl_async_load_glmesh( &menu.model, &menu.mesh );
 122    vg_tex2d_load_qoi_async( data, tex0->file.pack_size,
 123                             VG_TEX2D_LINEAR|VG_TEX2D_CLAMP,
 124                             &menu.texture );
 125
 126    mdl_close( &menu.model );
 127    shader_model_menu_register();
 128 }
 129
 130 /*
 131  * Drop back a page until we're at the bottom which then we jus quit
 132  */
 133 static void menu_back_page(void)
 134 {
 135    vg_info( "menu_back_page()\n" );
 136    menu.page_depth --;
 137    if( menu.page_depth == 0 ){
 138       menu.active = 0;
 139       menu.page = 0xffffffff;
 140    }
 141    else{
 142       menu.page = menu.page_stack[ menu.page_depth ].page;
 143       menu.cam = menu.page_stack[ menu.page_depth ].cam;
 144
 145       if( menu.input_mode == k_menu_input_mode_keys )
 146          menu.loc = menu.page_stack[ menu.page_depth ].loc;
 147       else menu.loc = NULL;
 148    }
 149 }
 150
 151 /*
 152  * Open page to the string identifier
 153  */
 154 static void menu_open_page( const char *name )
 155 {
 156    if( menu.page_depth >= MENU_STACK_SIZE )
 157       vg_fatal_error( "Stack overflow\n" );
 158
 159    vg_info( "Try to open %s\n", name );
 160
 161    u32 hash = vg_strdjb2( name );
 162    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 163       ent_menuitem *item = mdl_arritm( &menu.items, i );
 164
 165       if( item->type == k_ent_menuitem_type_page ){
 166          if( mdl_pstreq( &menu.model, item->page.pstr_name, name, hash ) ){
 167             u32 new_page = __builtin_ctz( item->groups );
 168
 169             if( new_page == menu.page ){
 170                menu_back_page();
 171             }
 172             else{
 173                menu.page_stack[ menu.page_depth    ].page = menu.page;
 174                menu.page_stack[ menu.page_depth    ].cam = menu.cam;
 175                menu.page_stack[ menu.page_depth ++ ].loc = menu.loc;
 176                menu.page = __builtin_ctz( item->groups );
 177
 178                if( menu.input_mode == k_menu_input_mode_keys ){
 179                   if( item->page.id_entrypoint ){
 180                      u32 id = mdl_entity_id_id( item->page.id_entrypoint );
 181                      menu.loc = mdl_arritm( &menu.items, id );
 182                   }
 183                }
 184
 185                if( item->page.id_viewpoint ){
 186                   u32 id = mdl_entity_id_id( item->page.id_viewpoint );
 187                   menu.cam = mdl_arritm( &menu.cameras, id );
 188                }
 189                vg_info( "menu page: %u (%p,%p)\n",
 190                         menu.page, menu.loc, menu.cam );
 191             }
 192             return;
 193          }
 194       }
 195    }
 196 }
 197
 198 /*
 199  * activate a pressable type
 200  */
 201 static void menu_trigger_item( ent_menuitem *item )
 202 {
 203    if     ( item->type == k_ent_menuitem_type_event_button ){
 204       u32 q = item->button.pstr;
 205
 206       if( MDL_CONST_PSTREQ( &menu.model, q, "quit" ) ){
 207          vg.window_should_close = 1;
 208       }
 209       else if( MDL_CONST_PSTREQ( &menu.model, q, "reset_nearest" ) ){
 210          localplayer_cmd_respawn( 0, NULL );
 211
 212          menu.page_depth = 0;
 213          menu.active = 0;
 214          menu.page = 0xffffffff;
 215       }
 216       else if( MDL_CONST_PSTREQ( &menu.model, q, "reset_home" ) ){
 217          world_static.active_world = 0;
 218          world_static.active_trigger_volume_count = 0;
 219          localplayer.viewable_world = world_current_instance();
 220          localplayer_cmd_respawn( 1, (const char *[]){"start"} );
 221
 222          menu.page_depth = 0;
 223          menu.active = 0;
 224          menu.page = 0xffffffff;
 225       }
 226       else if( MDL_CONST_PSTREQ( &menu.model, q, "credits" ) ){
 227          menu.credits_open = 1;
 228       }
 229       else if( MDL_CONST_PSTREQ( &menu.model, q, "workshop" ) ){
 230          workshop_submit_command(0,NULL);
 231       }
 232    }
 233    else if( item->type == k_ent_menuitem_type_page_button ){
 234       menu_open_page( mdl_pstr( &menu.model, item->button.pstr ) );
 235    }
 236    else if( item->type == k_ent_menuitem_type_toggle ){
 237       if( item->pi32 ){
 238          *item->pi32 = *item->pi32 ^ 0x1;
 239       }
 240    }
 241 }
 242
 243 static f32 menu_slider_snap( f32 value, f32 old, f32 notch )
 244 {
 245    f32 const k_epsilon = 0.0125f;
 246
 247    if( fabsf(notch-value) < k_epsilon ){
 248       if( fabsf(notch-old) > k_epsilon ){
 249          audio_lock();
 250          audio_oneshot( &audio_ui[0], 1.0f, 0.0f );
 251          audio_unlock();
 252       }
 253
 254       return notch;
 255    }
 256    else
 257       return value;
 258 }
 259
 260 /*
 261  * Run from vg_gui every frame
 262  */
 263 static void menu_update(void)
 264 {
 265    if( workshop_form.page != k_workshop_form_hidden ){
 266       return;
 267    }
 268
 269    int escape = button_down( k_srbind_mback );
 270    if( menu.credits_open ){
 271       if( escape ){
 272          menu.credits_open = 0;
 273       }
 274       return;
 275    }
 276
 277    if( button_down( k_srbind_mopen ) ){
 278       if( !menu.active && !menu.disable_open ){
 279          menu.active = 1;
 280          menu.page = 0xffffffff;
 281          menu_open_page( "Main Menu" );
 282          return;
 283       }
 284    }
 285
 286    menu.factive = vg_lerpf( menu.factive, menu.active,
 287                             vg.time_frame_delta * 6.0f );
 288
 289    if( !menu.active ) return;
 290
 291    enum menu_input_mode prev_mode = menu.input_mode;
 292
 293    /* get buttons inputs
 294     * -------------------------------------------------------------------*/
 295    int ml = button_down( k_srbind_mleft ),
 296        mr = button_down( k_srbind_mright ),
 297        mu = button_down( k_srbind_mup ),
 298        md = button_down( k_srbind_mdown ),
 299        mh = ml-mr,
 300        mv = mu-md,
 301        enter = button_down( k_srbind_maccept );
 302
 303    if( mh||mv||enter ){
 304       menu.input_mode = k_menu_input_mode_keys;
 305    }
 306
 307    /* get mouse inputs
 308     * --------------------------------------------------------------------*/
 309    menu.mouse_dist += v2_length( vg.mouse_delta ); /* TODO: Move to UI */
 310    menu.mouse_track += vg.time_frame_delta;
 311    if( menu.mouse_track > 0.1f ){
 312       menu.mouse_track = fmodf( menu.mouse_track, 0.1f );
 313       if( menu.mouse_dist > 10.0f ){
 314          menu.input_mode = k_menu_input_mode_mouse;
 315          menu.mouse_dist = 0.0f;
 316       }
 317    }
 318
 319    if( ui_clicking(UI_MOUSE_LEFT) || ui_clicking(UI_MOUSE_RIGHT) ){
 320       menu.input_mode = k_menu_input_mode_mouse;
 321    }
 322
 323    if( menu.input_mode == k_menu_input_mode_mouse ){
 324       /*
 325        * handle mouse input
 326        * ------------------------------------------------------------*/
 327       vg_ui.wants_mouse = 1;
 328
 329       /*
 330        * this raycasting is super cumbersome because all the functions were
 331        * designed for other purposes. we dont care though.
 332        */
 333       m4x4f inverse;
 334       m4x4_inv( menu.view.mtx.p, inverse );
 335       v4f coords;
 336       coords[0] = vg_ui.mouse[0];
 337       coords[1] = vg.window_y - vg_ui.mouse[1];
 338       v2_div( coords, (v2f){ vg.window_x, vg.window_y }, coords );
 339       v2_muls( coords, 2.0f, coords );
 340       v2_add( coords, (v2f){-1.0f,-1.0f}, coords );
 341       coords[2] = 1.0f;
 342       coords[3] = 1.0f;
 343       m4x4_mulv( inverse, coords, coords );
 344       v3f ray;
 345       m3x3_mulv( menu.view.transform, coords, ray );
 346       v3_normalize( ray );
 347
 348       if( menu.loc && (menu.loc->type == k_ent_menuitem_type_slider) &&
 349           ui_clicking(UI_MOUSE_LEFT) && menu.loc->pf32 ){
 350
 351          u32 il = mdl_entity_id_id( menu.loc->slider.id_min ),
 352              ir = mdl_entity_id_id( menu.loc->slider.id_max );
 353          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 354                     *mr = mdl_arritm( &menu.markers, ir );
 355
 356          v3f q2;
 357          v3_muladds( menu.view.pos, ray, 100.0f, q2 );
 358
 359          f32 s,t;
 360          v3f c1, c2;
 361          v3f p1, q1, v0;
 362          v3_sub( mr->transform.co, ml->transform.co, v0 );
 363          v3_muladds( ml->transform.co, v0, -1.0f, p1 );
 364          v3_muladds( mr->transform.co, v0,  1.0f, q1 );
 365          closest_segment_segment( p1, q1, menu.view.pos, q2, &s,&t, c1,c2 );
 366
 367          s-=(1.0f/3.0f);
 368          s/=(1.0f/3.0f);
 369
 370          if( ui_click_down(UI_MOUSE_LEFT) ){
 371             menu.slider_offset = *menu.loc->pf32 - s;
 372          }
 373
 374          f32 newvalue = vg_clampf( s+menu.slider_offset, 0.0f, 1.0f );
 375
 376          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.00f );
 377          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 1.00f );
 378          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.25f );
 379          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.50f );
 380          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.75f );
 381
 382          *menu.loc->pf32 = newvalue;
 383          return;
 384       }
 385
 386       ent_menuitem *hit_item = NULL;
 387
 388       for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 389          ent_menuitem *item = mdl_arritm( &menu.items, i );
 390
 391          if( item->type == k_ent_menuitem_type_page ) continue;
 392          if( item->type == k_ent_menuitem_type_visual ) continue;
 393          if( !(item->groups & (0x1<<menu.page)) ) continue;
 394
 395          ent_menuitem *ray_item = item;
 396
 397          if( item->type == k_ent_menuitem_type_slider ){
 398             u32 subtarget = mdl_entity_id_id( item->slider.id_handle );
 399             ray_item = mdl_arritm( &menu.items, subtarget );
 400          }
 401
 402          v3f local_ray,
 403              local_co;
 404
 405          m4x3f inverse_mtx;
 406          mdl_transform_m4x3( &ray_item->transform, inverse_mtx );
 407          m4x3_invert_full( inverse_mtx, inverse_mtx );
 408
 409          m4x3_mulv( inverse_mtx, menu.view.transform[3], local_co );
 410          m3x3_mulv( inverse_mtx, ray, local_ray );
 411          v3_normalize( local_ray );
 412
 413          local_ray[0] = 1.0f/local_ray[0];
 414          local_ray[1] = 1.0f/local_ray[1];
 415          local_ray[2] = 1.0f/local_ray[2];
 416
 417          for( u32 j=0; j<ray_item->submesh_count; j++ ){
 418             mdl_submesh *sm = mdl_arritm( &menu.model.submeshs,
 419                                            ray_item->submesh_start + j );
 420             if( ray_aabb1( sm->bbx, local_co, local_ray, 1000.0f ) ){
 421                hit_item = item;
 422                break;
 423             }
 424          }
 425       }
 426
 427       if( hit_item != menu.loc ){
 428          menu.loc = hit_item;
 429       }
 430
 431       if( escape ){
 432          menu_back_page();
 433       }
 434       else if( menu.loc ){
 435          if( ui_click_down( UI_MOUSE_LEFT ) ){
 436             menu_trigger_item( menu.loc );
 437          }
 438       }
 439    }
 440    else if( menu.input_mode == k_menu_input_mode_keys ){
 441       /*
 442        * handle button input
 443        * ------------------------------------------------------------*/
 444       if( (prev_mode != k_menu_input_mode_keys) && !menu.loc ){
 445          for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 446             ent_menuitem *item = mdl_arritm( &menu.items, i );
 447
 448             if( (item->type != k_ent_menuitem_type_page) &&
 449                 (item->type != k_ent_menuitem_type_visual) &&
 450                 (item->groups & (0x1<<menu.page)) ){
 451                menu.loc = item;
 452             }
 453          }
 454       }
 455
 456       if( !menu.loc ) vg_fatal_error( "No location\n" );
 457
 458       if( menu.loc->type == k_ent_menuitem_type_slider && menu.loc->pf32 ){
 459          f32 move = 0.0f;
 460
 461          if( vg_input.display_input_method == k_input_method_controller ){
 462             move += button_press( k_srbind_mright );
 463             move -= button_press( k_srbind_mleft );
 464          }
 465          else{
 466             move += axis_state( k_sraxis_mbrowse_h );
 467          }
 468
 469          move *= vg.time_frame_delta;
 470          *menu.loc->pf32 = vg_clampf( *menu.loc->pf32 + move, 0.0f, 1.0f );
 471
 472          mh = 0;
 473       }
 474
 475       if( escape ){
 476          menu_back_page();
 477       }
 478       else if( enter ){
 479          menu_trigger_item( menu.loc );
 480       }
 481       else if( mh||mv ){
 482          v3f opt;
 483          v3_zero( opt );
 484          f32 best = 0.707f;
 485          ent_menuitem *nextpos = NULL;
 486
 487          opt[0] += mh;
 488          opt[2] += mv;
 489          mdl_transform_vector( &menu.cam->transform, opt, opt );
 490
 491          for( u32 i=0; i<4; i++ ){
 492             u32 id = menu.loc->id_links[i];
 493             if( !id ) continue;
 494             u32 index = mdl_entity_id_id( id );
 495
 496             ent_menuitem *other = mdl_arritm( &menu.items, index );
 497             v3f delta;
 498             v3_sub( menu.loc->transform.co, other->transform.co, delta );
 499             v3_normalize( delta );
 500
 501             f32 score = v3_dot( delta, opt );
 502             if( score > best ){
 503                best = score;
 504                nextpos = other;
 505             }
 506          }
 507
 508          if( nextpos ){
 509             menu.loc = nextpos;
 510          }
 511       }
 512    }
 513 }
 514
 515 /*
 516  * Run from vg_gui when active
 517  */
 518 VG_STATIC void menu_render(void)
 519 {
 520    glEnable(GL_BLEND);
 521    glDisable(GL_DEPTH_TEST);
 522    glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
 523    glBlendEquation(GL_FUNC_ADD);
 524
 525    shader_blitcolour_use();
 526    v4f colour;
 527    ui_hex_to_norm( ui_colour( k_ui_bg+3 ), colour );
 528    colour[3] = 0.5f;
 529
 530    shader_blitcolour_uColour( colour );
 531    render_fsquad();
 532
 533    if( (workshop_form.page != k_workshop_form_hidden) ||
 534        (vg_ui.focused_control_type != k_ui_control_none) ){
 535       return;
 536    }
 537
 538    if( menu.credits_open ){
 539       ui_rect panel = { 0,0, 460, 400 },
 540               screen = { 0,0, vg.window_x,vg.window_y };
 541       ui_rect_center( screen, panel );
 542       ui_fill( panel, ui_colour(k_ui_bg) );
 543       ui_outline( panel, 1, ui_colour(k_ui_fg) );
 544       ui_rect_pad( panel, (ui_px[]){8,8} );
 545
 546       ui_rect title;
 547       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 548       ui_text( title, "Skate Rift - Credits", 2, k_ui_align_middle_center, 0 );
 549       ui_split( panel, k_ui_axis_h, 28, 0, title, panel );
 550       ui_text( title, "Mt.Zero Software", 1, k_ui_align_middle_center, 0 );
 551
 552       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 553       ui_split( panel, k_ui_axis_h, 28, 0, title, panel );
 554       ui_text( title, "A game by Harry Godden", 1,
 555                k_ui_align_middle_center, 0 );
 556
 557       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 558       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 559       ui_text( title, "Free Software", 2, k_ui_align_middle_center, 0 );
 560
 561       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 562       ui_text( panel,
 563             "Sam Lantinga       - SDL2 - libsdl.org\n"
 564             "Hunter WB          - Anyascii\n"
 565             "David Herberth     - GLAD\n"
 566             "Dominic Szablewski - QOI - qoiformat.org\n"
 567             "Sean Barrett       - stb_image,stb_vorbis,stb_include\n"
 568             "Khronos Group      - OpenGL\n"
 569             , 1, k_ui_align_left, 0 );
 570       return;
 571    }
 572
 573    glEnable( GL_DEPTH_TEST );
 574    glDisable( GL_BLEND );
 575
 576    f32 rate = vg.time_frame_delta * 12.0f;
 577
 578    if( menu.cam ){
 579       camera target;
 580
 581       target.fov = menu.cam->fov;
 582       v3_copy( menu.cam->transform.co, target.pos );
 583
 584       v3f v0;
 585       mdl_transform_vector( &menu.cam->transform, (v3f){0.0f,-1.0f,0.0f}, v0 );
 586       player_vector_angles( target.angles, v0, 1.0f, 0.0f );
 587
 588       camera_lerp( &menu.view, &target, rate, &menu.view );
 589
 590       menu.view.farz = 150.0f;
 591       menu.view.nearz = 0.01f;
 592
 593       camera_update_transform( &menu.view );
 594       camera_update_view( &menu.view );
 595       camera_update_projection( &menu.view );
 596       camera_finalize( &menu.view );
 597    }
 598    else return;
 599
 600    shader_model_menu_use();
 601    shader_model_menu_uTexMain( 1 );
 602    glActiveTexture( GL_TEXTURE1 );
 603    glBindTexture( GL_TEXTURE_2D, menu.texture );
 604    shader_model_menu_uPv( menu.view.mtx.pv );
 605    shader_model_menu_uPvmPrev( menu.view.mtx_prev.pv );
 606
 607    mesh_bind( &menu.mesh );
 608
 609    v4f white, blue;
 610
 611    ui_hex_to_norm( ui_colour( k_ui_fg ), white );
 612    ui_hex_to_norm( ui_colour( k_ui_orange+k_ui_brighter ), blue );
 613
 614    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 615       ent_menuitem *item = mdl_arritm( &menu.items, i );
 616
 617       if(   item->type == k_ent_menuitem_type_page ) continue;
 618       if( !(item->groups & (0x1 << menu.page)) ) continue;
 619
 620       int selected = 0;
 621
 622       if( menu.loc ){
 623          if( menu.loc->type == k_ent_menuitem_type_slider ){
 624             u32 subid = menu.loc->slider.id_handle;
 625             if( item == mdl_arritm( &menu.items, mdl_entity_id_id(subid) ))
 626                selected = 1;
 627          }
 628          else{
 629             if( item == menu.loc )
 630                selected = 1;
 631          }
 632       }
 633
 634       item->factive = vg_lerpf( item->factive, selected, rate );
 635       v4f colour;
 636       v4_lerp( white, blue, item->factive, colour );
 637       shader_model_menu_uColour( colour );
 638
 639       f32 scale = 1.0f+item->factive*0.1f;
 640
 641       m4x3f mmdl;
 642       mdl_transform transform = item->transform;
 643       v3_muls( transform.s, scale, transform.s );
 644       mdl_transform_m4x3( &transform, mmdl );
 645
 646       if( item->type == k_ent_menuitem_type_toggle && item->pi32 ){
 647          u32 subid = mdl_entity_id_id( item->checkmark.id_check );
 648          ent_menuitem *subitem = mdl_arritm( &menu.items, subid );
 649
 650          v3_muladds( item->transform.co, item->checkmark.offset, scale,
 651                      subitem->transform.co );
 652
 653          subitem->fvisible = vg_lerpf( subitem->fvisible, *item->pi32, rate );
 654          v3_fill( subitem->transform.s, subitem->fvisible );
 655       }
 656       else if( item->type == k_ent_menuitem_type_slider && item->pf32 ){
 657          u32 il = mdl_entity_id_id( item->slider.id_min ),
 658              ir = mdl_entity_id_id( item->slider.id_max ),
 659              ih = mdl_entity_id_id( item->slider.id_handle );
 660          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 661                     *mr = mdl_arritm( &menu.markers, ir );
 662          ent_menuitem *handle = mdl_arritm( &menu.items, ih );
 663
 664          v3_lerp( ml->transform.co, mr->transform.co, *item->pf32,
 665                   handle->transform.co );
 666       }
 667
 668       shader_model_menu_uMdl( mmdl );
 669
 670       for( u32 j=0; j<item->submesh_count; j++ ){
 671          u32 index = item->submesh_start + j;
 672          mdl_draw_submesh( mdl_arritm( &menu.model.submeshs, index ));
 673       }
 674    }
 675 }
 676
 677 #endif /* MENU_H */