src/m_menu.c

   1 // Emacs style mode select   -*- C++ -*-
   2 //-----------------------------------------------------------------------------
   3 //
   4 // Copyright(C) 1993-1996 Id Software, Inc.
   5 // Copyright(C) 2005 Simon Howard
   6 //
   7 // This program is free software; you can redistribute it and/or
   8 // modify it under the terms of the GNU General Public License
   9 // as published by the Free Software Foundation; either version 2
  10 // of the License, or (at your option) any later version.
  11 //
  12 // This program is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License
  18 // along with this program; if not, write to the Free Software
  19 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  20 // 02111-1307, USA.
  21 //
  22 // DESCRIPTION:
  23 //      DOOM selection menu, options, episode etc.
  24 //      Sliders and icons. Kinda widget stuff.
  25 //
  26 //-----------------------------------------------------------------------------
  27
  28
  29 #include <stdlib.h>
  30 #include <ctype.h>
  31
  32
  33 #include "doomdef.h"
  34 #include "dstrings.h"
  35
  36 #include "d_main.h"
  37 #include "deh_main.h"
  38
  39 #include "i_swap.h"
  40 #include "i_system.h"
  41 #include "i_timer.h"
  42 #include "i_video.h"
  43 #include "z_zone.h"
  44 #include "v_video.h"
  45 #include "w_wad.h"
  46
  47 #include "r_local.h"
  48
  49
  50 #include "hu_stuff.h"
  51
  52 #include "g_game.h"
  53
  54 #include "m_argv.h"
  55 #include "p_saveg.h"
  56
  57 #include "s_sound.h"
  58
  59 #include "doomstat.h"
  60
  61 // Data.
  62 #include "sounds.h"
  63
  64 #include "m_menu.h"
  65
  66
  67 extern void M_QuitDOOM(int);
  68
  69 extern patch_t*         hu_font[HU_FONTSIZE];
  70 extern boolean          message_dontfuckwithme;
  71
  72 extern boolean          chat_on;                // in heads-up code
  73
  74 //
  75 // menu keys:
  76 //
  77
  78 int key_menu_activate  = KEY_ESCAPE;
  79 int key_menu_up        = KEY_UPARROW;
  80 int key_menu_down      = KEY_DOWNARROW;
  81 int key_menu_left      = KEY_LEFTARROW;
  82 int key_menu_right     = KEY_RIGHTARROW;
  83 int key_menu_back      = KEY_BACKSPACE;
  84 int key_menu_forward   = KEY_ENTER;
  85 int key_menu_confirm   = 'y';
  86 int key_menu_abort     = 'n';
  87
  88 int key_menu_help      = KEY_F1;
  89 int key_menu_save      = KEY_F2;
  90 int key_menu_load      = KEY_F3;
  91 int key_menu_volume    = KEY_F4;
  92 int key_menu_detail    = KEY_F5;
  93 int key_menu_qsave     = KEY_F6;
  94 int key_menu_endgame   = KEY_F7;
  95 int key_menu_messages  = KEY_F8;
  96 int key_menu_qload     = KEY_F9;
  97 int key_menu_quit      = KEY_F10;
  98 int key_menu_gamma     = KEY_F11;
  99
 100 int key_menu_incscreen = KEY_EQUALS;
 101 int key_menu_decscreen = KEY_MINUS;
 102
 103 //
 104 // defaulted values
 105 //
 106 int                     mouseSensitivity = 5;
 107
 108 // Show messages has default, 0 = off, 1 = on
 109 int                     showMessages = 1;
 110
 111
 112 // Blocky mode, has default, 0 = high, 1 = normal
 113 int                     detailLevel = 0;
 114 int                     screenblocks = 9;
 115
 116 // temp for screenblocks (0-9)
 117 int                     screenSize;
 118
 119 // -1 = no quicksave slot picked!
 120 int                     quickSaveSlot;
 121
 122  // 1 = message to be printed
 123 int                     messageToPrint;
 124 // ...and here is the message string!
 125 char*                   messageString;
 126
 127 // message x & y
 128 int                     messx;
 129 int                     messy;
 130 int                     messageLastMenuActive;
 131
 132 // timed message = no input from user
 133 boolean                 messageNeedsInput;
 134
 135 void    (*messageRoutine)(int response);
 136
 137 char gammamsg[5][26] =
 138 {
 139     GAMMALVL0,
 140     GAMMALVL1,
 141     GAMMALVL2,
 142     GAMMALVL3,
 143     GAMMALVL4
 144 };
 145
 146 // we are going to be entering a savegame string
 147 int                     saveStringEnter;
 148 int                     saveSlot;       // which slot to save in
 149 int                     saveCharIndex;  // which char we're editing
 150 // old save description before edit
 151 char                    saveOldString[SAVESTRINGSIZE];
 152
 153 boolean                 inhelpscreens;
 154 boolean                 menuactive;
 155
 156 #define SKULLXOFF               -32
 157 #define LINEHEIGHT              16
 158
 159 extern boolean          sendpause;
 160 char                    savegamestrings[10][SAVESTRINGSIZE];
 161
 162 char    endstring[160];
 163
 164
 165 //
 166 // MENU TYPEDEFS
 167 //
 168 typedef struct
 169 {
 170     // 0 = no cursor here, 1 = ok, 2 = arrows ok
 171     short       status;
 172
 173     char        name[10];
 174
 175     // choice = menu item #.
 176     // if status = 2,
 177     //   choice=0:leftarrow,1:rightarrow
 178     void        (*routine)(int choice);
 179
 180     // hotkey in menu
 181     char        alphaKey;
 182 } menuitem_t;
 183
 184
 185
 186 typedef struct menu_s
 187 {
 188     short               numitems;       // # of menu items
 189     struct menu_s*      prevMenu;       // previous menu
 190     menuitem_t*         menuitems;      // menu items
 191     void                (*routine)();   // draw routine
 192     short               x;
 193     short               y;              // x,y of menu
 194     short               lastOn;         // last item user was on in menu
 195 } menu_t;
 196
 197 short           itemOn;                 // menu item skull is on
 198 short           skullAnimCounter;       // skull animation counter
 199 short           whichSkull;             // which skull to draw
 200
 201 // graphic name of skulls
 202 // warning: initializer-string for array of chars is too long
 203 char    *skullName[2] = {"M_SKULL1","M_SKULL2"};
 204
 205 // current menudef
 206 menu_t* currentMenu;
 207
 208 //
 209 // PROTOTYPES
 210 //
 211 void M_NewGame(int choice);
 212 void M_Episode(int choice);
 213 void M_ChooseSkill(int choice);
 214 void M_LoadGame(int choice);
 215 void M_SaveGame(int choice);
 216 void M_Options(int choice);
 217 void M_EndGame(int choice);
 218 void M_ReadThis(int choice);
 219 void M_ReadThis2(int choice);
 220 void M_QuitDOOM(int choice);
 221
 222 void M_ChangeMessages(int choice);
 223 void M_ChangeSensitivity(int choice);
 224 void M_SfxVol(int choice);
 225 void M_MusicVol(int choice);
 226 void M_ChangeDetail(int choice);
 227 void M_SizeDisplay(int choice);
 228 void M_StartGame(int choice);
 229 void M_Sound(int choice);
 230
 231 void M_FinishReadThis(int choice);
 232 void M_LoadSelect(int choice);
 233 void M_SaveSelect(int choice);
 234 void M_ReadSaveStrings(void);
 235 void M_QuickSave(void);
 236 void M_QuickLoad(void);
 237
 238 void M_DrawMainMenu(void);
 239 void M_DrawReadThis1(void);
 240 void M_DrawReadThis2(void);
 241 void M_DrawNewGame(void);
 242 void M_DrawEpisode(void);
 243 void M_DrawOptions(void);
 244 void M_DrawSound(void);
 245 void M_DrawLoad(void);
 246 void M_DrawSave(void);
 247
 248 void M_DrawSaveLoadBorder(int x,int y);
 249 void M_SetupNextMenu(menu_t *menudef);
 250 void M_DrawThermo(int x,int y,int thermWidth,int thermDot);
 251 void M_DrawEmptyCell(menu_t *menu,int item);
 252 void M_DrawSelCell(menu_t *menu,int item);
 253 void M_WriteText(int x, int y, char *string);
 254 int  M_StringWidth(char *string);
 255 int  M_StringHeight(char *string);
 256 void M_StartControlPanel(void);
 257 void M_StartMessage(char *string,void *routine,boolean input);
 258 void M_StopMessage(void);
 259 void M_ClearMenus (void);
 260
 261
 262
 263
 264 //
 265 // DOOM MENU
 266 //
 267 enum
 268 {
 269     newgame = 0,
 270     options,
 271     loadgame,
 272     savegame,
 273     readthis,
 274     quitdoom,
 275     main_end
 276 } main_e;
 277
 278 menuitem_t MainMenu[]=
 279 {
 280     {1,"M_NGAME",M_NewGame,'n'},
 281     {1,"M_OPTION",M_Options,'o'},
 282     {1,"M_LOADG",M_LoadGame,'l'},
 283     {1,"M_SAVEG",M_SaveGame,'s'},
 284     // Another hickup with Special edition.
 285     {1,"M_RDTHIS",M_ReadThis,'r'},
 286     {1,"M_QUITG",M_QuitDOOM,'q'}
 287 };
 288
 289 menu_t  MainDef =
 290 {
 291     main_end,
 292     NULL,
 293     MainMenu,
 294     M_DrawMainMenu,
 295     97,64,
 296     0
 297 };
 298
 299
 300 //
 301 // EPISODE SELECT
 302 //
 303 enum
 304 {
 305     ep1,
 306     ep2,
 307     ep3,
 308     ep4,
 309     ep_end
 310 } episodes_e;
 311
 312 menuitem_t EpisodeMenu[]=
 313 {
 314     {1,"M_EPI1", M_Episode,'k'},
 315     {1,"M_EPI2", M_Episode,'t'},
 316     {1,"M_EPI3", M_Episode,'i'},
 317     {1,"M_EPI4", M_Episode,'t'}
 318 };
 319
 320 menu_t  EpiDef =
 321 {
 322     ep_end,             // # of menu items
 323     &MainDef,           // previous menu
 324     EpisodeMenu,        // menuitem_t ->
 325     M_DrawEpisode,      // drawing routine ->
 326     48,63,              // x,y
 327     ep1                 // lastOn
 328 };
 329
 330 //
 331 // NEW GAME
 332 //
 333 enum
 334 {
 335     killthings,
 336     toorough,
 337     hurtme,
 338     violence,
 339     nightmare,
 340     newg_end
 341 } newgame_e;
 342
 343 menuitem_t NewGameMenu[]=
 344 {
 345     {1,"M_JKILL",       M_ChooseSkill, 'i'},
 346     {1,"M_ROUGH",       M_ChooseSkill, 'h'},
 347     {1,"M_HURT",        M_ChooseSkill, 'h'},
 348     {1,"M_ULTRA",       M_ChooseSkill, 'u'},
 349     {1,"M_NMARE",       M_ChooseSkill, 'n'}
 350 };
 351
 352 menu_t  NewDef =
 353 {
 354     newg_end,           // # of menu items
 355     &EpiDef,            // previous menu
 356     NewGameMenu,        // menuitem_t ->
 357     M_DrawNewGame,      // drawing routine ->
 358     48,63,              // x,y
 359     hurtme              // lastOn
 360 };
 361
 362
 363
 364 //
 365 // OPTIONS MENU
 366 //
 367 enum
 368 {
 369     endgame,
 370     messages,
 371     detail,
 372     scrnsize,
 373     option_empty1,
 374     mousesens,
 375     option_empty2,
 376     soundvol,
 377     opt_end
 378 } options_e;
 379
 380 menuitem_t OptionsMenu[]=
 381 {
 382     {1,"M_ENDGAM",      M_EndGame,'e'},
 383     {1,"M_MESSG",       M_ChangeMessages,'m'},
 384     {1,"M_DETAIL",      M_ChangeDetail,'g'},
 385     {2,"M_SCRNSZ",      M_SizeDisplay,'s'},
 386     {-1,"",0,'\0'},
 387     {2,"M_MSENS",       M_ChangeSensitivity,'m'},
 388     {-1,"",0,'\0'},
 389     {1,"M_SVOL",        M_Sound,'s'}
 390 };
 391
 392 menu_t  OptionsDef =
 393 {
 394     opt_end,
 395     &MainDef,
 396     OptionsMenu,
 397     M_DrawOptions,
 398     60,37,
 399     0
 400 };
 401
 402 //
 403 // Read This! MENU 1 & 2
 404 //
 405 enum
 406 {
 407     rdthsempty1,
 408     read1_end
 409 } read_e;
 410
 411 menuitem_t ReadMenu1[] =
 412 {
 413     {1,"",M_ReadThis2,0}
 414 };
 415
 416 menu_t  ReadDef1 =
 417 {
 418     read1_end,
 419     &MainDef,
 420     ReadMenu1,
 421     M_DrawReadThis1,
 422     280,185,
 423     0
 424 };
 425
 426 enum
 427 {
 428     rdthsempty2,
 429     read2_end
 430 } read_e2;
 431
 432 menuitem_t ReadMenu2[]=
 433 {
 434     {1,"",M_FinishReadThis,0}
 435 };
 436
 437 menu_t  ReadDef2 =
 438 {
 439     read2_end,
 440     &ReadDef1,
 441     ReadMenu2,
 442     M_DrawReadThis2,
 443     330,175,
 444     0
 445 };
 446
 447 //
 448 // SOUND VOLUME MENU
 449 //
 450 enum
 451 {
 452     sfx_vol,
 453     sfx_empty1,
 454     music_vol,
 455     sfx_empty2,
 456     sound_end
 457 } sound_e;
 458
 459 menuitem_t SoundMenu[]=
 460 {
 461     {2,"M_SFXVOL",M_SfxVol,'s'},
 462     {-1,"",0,'\0'},
 463     {2,"M_MUSVOL",M_MusicVol,'m'},
 464     {-1,"",0,'\0'}
 465 };
 466
 467 menu_t  SoundDef =
 468 {
 469     sound_end,
 470     &OptionsDef,
 471     SoundMenu,
 472     M_DrawSound,
 473     80,64,
 474     0
 475 };
 476
 477 //
 478 // LOAD GAME MENU
 479 //
 480 enum
 481 {
 482     load1,
 483     load2,
 484     load3,
 485     load4,
 486     load5,
 487     load6,
 488     load_end
 489 } load_e;
 490
 491 menuitem_t LoadMenu[]=
 492 {
 493     {1,"", M_LoadSelect,'1'},
 494     {1,"", M_LoadSelect,'2'},
 495     {1,"", M_LoadSelect,'3'},
 496     {1,"", M_LoadSelect,'4'},
 497     {1,"", M_LoadSelect,'5'},
 498     {1,"", M_LoadSelect,'6'}
 499 };
 500
 501 menu_t  LoadDef =
 502 {
 503     load_end,
 504     &MainDef,
 505     LoadMenu,
 506     M_DrawLoad,
 507     80,54,
 508     0
 509 };
 510
 511 //
 512 // SAVE GAME MENU
 513 //
 514 menuitem_t SaveMenu[]=
 515 {
 516     {1,"", M_SaveSelect,'1'},
 517     {1,"", M_SaveSelect,'2'},
 518     {1,"", M_SaveSelect,'3'},
 519     {1,"", M_SaveSelect,'4'},
 520     {1,"", M_SaveSelect,'5'},
 521     {1,"", M_SaveSelect,'6'}
 522 };
 523
 524 menu_t  SaveDef =
 525 {
 526     load_end,
 527     &MainDef,
 528     SaveMenu,
 529     M_DrawSave,
 530     80,54,
 531     0
 532 };
 533
 534
 535 //
 536 // M_ReadSaveStrings
 537 //  read the strings from the savegame files
 538 //
 539 void M_ReadSaveStrings(void)
 540 {
 541     FILE   *handle;
 542     int     count;
 543     int     i;
 544     char    name[256];
 545
 546     for (i = 0;i < load_end;i++)
 547     {
 548         strcpy(name, P_SaveGameFile(i));
 549
 550         handle = fopen(name, "rb");
 551         if (handle == NULL)
 552         {
 553             strcpy(&savegamestrings[i][0], EMPTYSTRING);
 554             LoadMenu[i].status = 0;
 555             continue;
 556         }
 557         count = fread(&savegamestrings[i], 1, SAVESTRINGSIZE, handle);
 558         fclose(handle);
 559         LoadMenu[i].status = 1;
 560     }
 561 }
 562
 563
 564 //
 565 // M_LoadGame & Cie.
 566 //
 567 void M_DrawLoad(void)
 568 {
 569     int             i;
 570
 571     V_DrawPatchDirect (72,28,0,W_CacheLumpName(DEH_String("M_LOADG"),PU_CACHE));
 572     for (i = 0;i < load_end; i++)
 573     {
 574         M_DrawSaveLoadBorder(LoadDef.x,LoadDef.y+LINEHEIGHT*i);
 575         M_WriteText(LoadDef.x,LoadDef.y+LINEHEIGHT*i,savegamestrings[i]);
 576     }
 577 }
 578
 579
 580
 581 //
 582 // Draw border for the savegame description
 583 //
 584 void M_DrawSaveLoadBorder(int x,int y)
 585 {
 586     int             i;
 587
 588     V_DrawPatchDirect (x-8,y+7,0,W_CacheLumpName(DEH_String("M_LSLEFT"),PU_CACHE));
 589
 590     for (i = 0;i < 24;i++)
 591     {
 592         V_DrawPatchDirect (x,y+7,0,W_CacheLumpName(DEH_String("M_LSCNTR"),PU_CACHE));
 593         x += 8;
 594     }
 595
 596     V_DrawPatchDirect (x,y+7,0,W_CacheLumpName(DEH_String("M_LSRGHT"),PU_CACHE));
 597 }
 598
 599
 600
 601 //
 602 // User wants to load this game
 603 //
 604 void M_LoadSelect(int choice)
 605 {
 606     char    name[256];
 607
 608     strcpy(name, P_SaveGameFile(choice));
 609
 610     G_LoadGame (name);
 611     M_ClearMenus ();
 612 }
 613
 614 //
 615 // Selected from DOOM menu
 616 //
 617 void M_LoadGame (int choice)
 618 {
 619     if (netgame)
 620     {
 621         M_StartMessage(DEH_String(LOADNET),NULL,false);
 622         return;
 623     }
 624
 625     M_SetupNextMenu(&LoadDef);
 626     M_ReadSaveStrings();
 627 }
 628
 629
 630 //
 631 //  M_SaveGame & Cie.
 632 //
 633 void M_DrawSave(void)
 634 {
 635     int             i;
 636
 637     V_DrawPatchDirect (72,28,0,W_CacheLumpName(DEH_String("M_SAVEG"),PU_CACHE));
 638     for (i = 0;i < load_end; i++)
 639     {
 640         M_DrawSaveLoadBorder(LoadDef.x,LoadDef.y+LINEHEIGHT*i);
 641         M_WriteText(LoadDef.x,LoadDef.y+LINEHEIGHT*i,savegamestrings[i]);
 642     }
 643
 644     if (saveStringEnter)
 645     {
 646         i = M_StringWidth(savegamestrings[saveSlot]);
 647         M_WriteText(LoadDef.x + i,LoadDef.y+LINEHEIGHT*saveSlot,"_");
 648     }
 649 }
 650
 651 //
 652 // M_Responder calls this when user is finished
 653 //
 654 void M_DoSave(int slot)
 655 {
 656     G_SaveGame (slot,savegamestrings[slot]);
 657     M_ClearMenus ();
 658
 659     // PICK QUICKSAVE SLOT YET?
 660     if (quickSaveSlot == -2)
 661         quickSaveSlot = slot;
 662 }
 663
 664 //
 665 // User wants to save. Start string input for M_Responder
 666 //
 667 void M_SaveSelect(int choice)
 668 {
 669     // we are going to be intercepting all chars
 670     saveStringEnter = 1;
 671
 672     saveSlot = choice;
 673     strcpy(saveOldString,savegamestrings[choice]);
 674     if (!strcmp(savegamestrings[choice],EMPTYSTRING))
 675         savegamestrings[choice][0] = 0;
 676     saveCharIndex = strlen(savegamestrings[choice]);
 677 }
 678
 679 //
 680 // Selected from DOOM menu
 681 //
 682 void M_SaveGame (int choice)
 683 {
 684     if (!usergame)
 685     {
 686         M_StartMessage(DEH_String(SAVEDEAD),NULL,false);
 687         return;
 688     }
 689
 690     if (gamestate != GS_LEVEL)
 691         return;
 692
 693     M_SetupNextMenu(&SaveDef);
 694     M_ReadSaveStrings();
 695 }
 696
 697
 698
 699 //
 700 //      M_QuickSave
 701 //
 702 char    tempstring[80];
 703
 704 void M_QuickSaveResponse(int key)
 705 {
 706     if (key == key_menu_confirm)
 707     {
 708         M_DoSave(quickSaveSlot);
 709         S_StartSound(NULL,sfx_swtchx);
 710     }
 711 }
 712
 713 void M_QuickSave(void)
 714 {
 715     if (!usergame)
 716     {
 717         S_StartSound(NULL,sfx_oof);
 718         return;
 719     }
 720
 721     if (gamestate != GS_LEVEL)
 722         return;
 723
 724     if (quickSaveSlot < 0)
 725     {
 726         M_StartControlPanel();
 727         M_ReadSaveStrings();
 728         M_SetupNextMenu(&SaveDef);
 729         quickSaveSlot = -2;     // means to pick a slot now
 730         return;
 731     }
 732     DEH_snprintf(tempstring, 80, QSPROMPT, savegamestrings[quickSaveSlot]);
 733     M_StartMessage(tempstring,M_QuickSaveResponse,true);
 734 }
 735
 736
 737
 738 //
 739 // M_QuickLoad
 740 //
 741 void M_QuickLoadResponse(int key)
 742 {
 743     if (key == key_menu_confirm)
 744     {
 745         M_LoadSelect(quickSaveSlot);
 746         S_StartSound(NULL,sfx_swtchx);
 747     }
 748 }
 749
 750
 751 void M_QuickLoad(void)
 752 {
 753     if (netgame)
 754     {
 755         M_StartMessage(DEH_String(QLOADNET),NULL,false);
 756         return;
 757     }
 758
 759     if (quickSaveSlot < 0)
 760     {
 761         M_StartMessage(DEH_String(QSAVESPOT),NULL,false);
 762         return;
 763     }
 764     DEH_snprintf(tempstring, 80, QLPROMPT, savegamestrings[quickSaveSlot]);
 765     M_StartMessage(tempstring,M_QuickLoadResponse,true);
 766 }
 767
 768
 769
 770
 771 //
 772 // Read This Menus
 773 // Had a "quick hack to fix romero bug"
 774 //
 775 void M_DrawReadThis1(void)
 776 {
 777     char *lumpname = "CREDIT";
 778     int skullx = 330, skully = 175;
 779
 780     inhelpscreens = true;
 781
 782     // Different versions of Doom 1.9 work differently
 783
 784     switch (gameversion)
 785     {
 786         case exe_doom_1_9:
 787             if (gamemode == commercial)
 788             {
 789                 // Doom 2
 790
 791                 lumpname = "HELP";
 792
 793                 skullx = 330;
 794                 skully = 165;
 795             }
 796             else
 797             {
 798                 // Doom 1
 799                 // HELP2 is the first screen shown in Doom 1
 800
 801                 lumpname = "HELP2";
 802
 803                 skullx = 280;
 804                 skully = 185;
 805             }
 806             break;
 807
 808         case exe_ultimate:
 809         case exe_chex:
 810
 811             // Ultimate Doom always displays "HELP1".
 812
 813             // Chex Quest version also uses "HELP1", even though it is based
 814             // on Final Doom.
 815
 816             lumpname = "HELP1";
 817
 818             break;
 819
 820         case exe_final:
 821
 822             // Final Doom always displays "HELP".
 823
 824             lumpname = "HELP";
 825
 826             break;
 827     }
 828
 829     lumpname = DEH_String(lumpname);
 830
 831     V_DrawPatchDirect (0, 0, 0, W_CacheLumpName(lumpname, PU_CACHE));
 832
 833     ReadDef1.x = skullx;
 834     ReadDef1.y = skully;
 835 }
 836
 837
 838
 839 //
 840 // Read This Menus - optional second page.
 841 //
 842 void M_DrawReadThis2(void)
 843 {
 844     inhelpscreens = true;
 845
 846     // We only ever draw the second page if this is
 847     // gameversion == exe_doom_1_9 and gamemode == registered
 848
 849     V_DrawPatchDirect(0, 0, 0, W_CacheLumpName(DEH_String("HELP1"), PU_CACHE));
 850 }
 851
 852
 853 //
 854 // Change Sfx & Music volumes
 855 //
 856 void M_DrawSound(void)
 857 {
 858     V_DrawPatchDirect (60,38,0,W_CacheLumpName(DEH_String("M_SVOL"),PU_CACHE));
 859
 860     M_DrawThermo(SoundDef.x,SoundDef.y+LINEHEIGHT*(sfx_vol+1),
 861                  16,sfxVolume);
 862
 863     M_DrawThermo(SoundDef.x,SoundDef.y+LINEHEIGHT*(music_vol+1),
 864                  16,musicVolume);
 865 }
 866
 867 void M_Sound(int choice)
 868 {
 869     M_SetupNextMenu(&SoundDef);
 870 }
 871
 872 void M_SfxVol(int choice)
 873 {
 874     switch(choice)
 875     {
 876       case 0:
 877         if (sfxVolume)
 878             sfxVolume--;
 879         break;
 880       case 1:
 881         if (sfxVolume < 15)
 882             sfxVolume++;
 883         break;
 884     }
 885
 886     S_SetSfxVolume(sfxVolume * 8);
 887 }
 888
 889 void M_MusicVol(int choice)
 890 {
 891     switch(choice)
 892     {
 893       case 0:
 894         if (musicVolume)
 895             musicVolume--;
 896         break;
 897       case 1:
 898         if (musicVolume < 15)
 899             musicVolume++;
 900         break;
 901     }
 902
 903     S_SetMusicVolume(musicVolume * 8);
 904 }
 905
 906
 907
 908
 909 //
 910 // M_DrawMainMenu
 911 //
 912 void M_DrawMainMenu(void)
 913 {
 914     V_DrawPatchDirect (94,2,0,W_CacheLumpName(DEH_String("M_DOOM"),PU_CACHE));
 915 }
 916
 917
 918
 919
 920 //
 921 // M_NewGame
 922 //
 923 void M_DrawNewGame(void)
 924 {
 925     V_DrawPatchDirect (96,14,0,W_CacheLumpName(DEH_String("M_NEWG"),PU_CACHE));
 926     V_DrawPatchDirect (54,38,0,W_CacheLumpName(DEH_String("M_SKILL"),PU_CACHE));
 927 }
 928
 929 void M_NewGame(int choice)
 930 {
 931     if (netgame && !demoplayback)
 932     {
 933         M_StartMessage(DEH_String(NEWGAME),NULL,false);
 934         return;
 935     }
 936
 937     // Chex Quest disabled the episode select screen, as did Doom II.
 938
 939     if (gamemode == commercial || gameversion == exe_chex)
 940         M_SetupNextMenu(&NewDef);
 941     else
 942         M_SetupNextMenu(&EpiDef);
 943 }
 944
 945
 946 //
 947 //      M_Episode
 948 //
 949 int     epi;
 950
 951 void M_DrawEpisode(void)
 952 {
 953     V_DrawPatchDirect (54,38,0,W_CacheLumpName(DEH_String("M_EPISOD"),PU_CACHE));
 954 }
 955
 956 void M_VerifyNightmare(int key)
 957 {
 958     if (key != key_menu_confirm)
 959         return;
 960
 961     G_DeferedInitNew(nightmare,epi+1,1);
 962     M_ClearMenus ();
 963 }
 964
 965 void M_ChooseSkill(int choice)
 966 {
 967     if (choice == nightmare)
 968     {
 969         M_StartMessage(DEH_String(NIGHTMARE),M_VerifyNightmare,true);
 970         return;
 971     }
 972
 973     G_DeferedInitNew(choice,epi+1,1);
 974     M_ClearMenus ();
 975 }
 976
 977 void M_Episode(int choice)
 978 {
 979     if ( (gamemode == shareware)
 980          && choice)
 981     {
 982         M_StartMessage(DEH_String(SWSTRING),NULL,false);
 983         M_SetupNextMenu(&ReadDef1);
 984         return;
 985     }
 986
 987     // Yet another hack...
 988     if ( (gamemode == registered)
 989          && (choice > 2))
 990     {
 991       fprintf( stderr,
 992                "M_Episode: 4th episode requires UltimateDOOM\n");
 993       choice = 0;
 994     }
 995
 996     epi = choice;
 997     M_SetupNextMenu(&NewDef);
 998 }
 999
1000
1001
1002 //
1003 // M_Options
1004 //
1005 char    detailNames[2][9]       = {"M_GDHIGH","M_GDLOW"};
1006 char    msgNames[2][9]          = {"M_MSGOFF","M_MSGON"};
1007
1008
1009 void M_DrawOptions(void)
1010 {
1011     V_DrawPatchDirect (108,15,0,W_CacheLumpName(DEH_String("M_OPTTTL"),PU_CACHE));
1012
1013     V_DrawPatchDirect (OptionsDef.x + 175,OptionsDef.y+LINEHEIGHT*detail,0,
1014                        W_CacheLumpName(DEH_String(detailNames[detailLevel]),
1015                                        PU_CACHE));
1016
1017     V_DrawPatchDirect (OptionsDef.x + 120,OptionsDef.y+LINEHEIGHT*messages,0,
1018                        W_CacheLumpName(DEH_String(msgNames[showMessages]),
1019                                        PU_CACHE));
1020
1021     M_DrawThermo(OptionsDef.x,OptionsDef.y+LINEHEIGHT*(mousesens+1),
1022                  10,mouseSensitivity);
1023
1024     M_DrawThermo(OptionsDef.x,OptionsDef.y+LINEHEIGHT*(scrnsize+1),
1025                  9,screenSize);
1026 }
1027
1028 void M_Options(int choice)
1029 {
1030     M_SetupNextMenu(&OptionsDef);
1031 }
1032
1033
1034
1035 //
1036 //      Toggle messages on/off
1037 //
1038 void M_ChangeMessages(int choice)
1039 {
1040     // warning: unused parameter `int choice'
1041     choice = 0;
1042     showMessages = 1 - showMessages;
1043
1044     if (!showMessages)
1045         players[consoleplayer].message = DEH_String(MSGOFF);
1046     else
1047         players[consoleplayer].message = DEH_String(MSGON);
1048
1049     message_dontfuckwithme = true;
1050 }
1051
1052
1053 //
1054 // M_EndGame
1055 //
1056 void M_EndGameResponse(int key)
1057 {
1058     if (key != key_menu_confirm)
1059         return;
1060
1061     currentMenu->lastOn = itemOn;
1062     M_ClearMenus ();
1063     D_StartTitle ();
1064 }
1065
1066 void M_EndGame(int choice)
1067 {
1068     choice = 0;
1069     if (!usergame)
1070     {
1071         S_StartSound(NULL,sfx_oof);
1072         return;
1073     }
1074
1075     if (netgame)
1076     {
1077         M_StartMessage(DEH_String(NETEND),NULL,false);
1078         return;
1079     }
1080
1081     M_StartMessage(DEH_String(ENDGAME),M_EndGameResponse,true);
1082 }
1083
1084
1085
1086
1087 //
1088 // M_ReadThis
1089 //
1090 void M_ReadThis(int choice)
1091 {
1092     choice = 0;
1093     M_SetupNextMenu(&ReadDef1);
1094 }
1095
1096 void M_ReadThis2(int choice)
1097 {
1098     // Doom 1.9 had two menus when playing Doom 1
1099     // All others had only one
1100
1101     if (gameversion == exe_doom_1_9 && gamemode != commercial)
1102     {
1103         choice = 0;
1104         M_SetupNextMenu(&ReadDef2);
1105     }
1106     else
1107     {
1108         // Close the menu
1109
1110         M_FinishReadThis(0);
1111     }
1112 }
1113
1114 void M_FinishReadThis(int choice)
1115 {
1116     choice = 0;
1117     M_SetupNextMenu(&MainDef);
1118 }
1119
1120
1121
1122
1123 //
1124 // M_QuitDOOM
1125 //
1126 int     quitsounds[8] =
1127 {
1128     sfx_pldeth,
1129     sfx_dmpain,
1130     sfx_popain,
1131     sfx_slop,
1132     sfx_telept,
1133     sfx_posit1,
1134     sfx_posit3,
1135     sfx_sgtatk
1136 };
1137
1138 int     quitsounds2[8] =
1139 {
1140     sfx_vilact,
1141     sfx_getpow,
1142     sfx_boscub,
1143     sfx_slop,
1144     sfx_skeswg,
1145     sfx_kntdth,
1146     sfx_bspact,
1147     sfx_sgtatk
1148 };
1149
1150
1151
1152 void M_QuitResponse(int key)
1153 {
1154     if (key != key_menu_confirm)
1155         return;
1156     if (!netgame)
1157     {
1158         if (gamemode == commercial)
1159             S_StartSound(NULL,quitsounds2[(gametic>>2)&7]);
1160         else
1161             S_StartSound(NULL,quitsounds[(gametic>>2)&7]);
1162         I_WaitVBL(105);
1163     }
1164     I_Quit ();
1165 }
1166
1167
1168 static char *M_SelectEndMessage(void)
1169 {
1170     char **endmsg;
1171
1172     if (gamemission == doom)
1173     {
1174         // Doom 1
1175
1176         endmsg = doom1_endmsg;
1177     }
1178     else
1179     {
1180         // Doom 2
1181
1182         endmsg = doom2_endmsg;
1183     }
1184
1185     return endmsg[gametic % NUM_QUITMESSAGES];
1186 }
1187
1188
1189 void M_QuitDOOM(int choice)
1190 {
1191     sprintf(endstring,
1192             DEH_String("%s\n\n" DOSY),
1193             DEH_String(M_SelectEndMessage()));
1194
1195     M_StartMessage(endstring,M_QuitResponse,true);
1196 }
1197
1198
1199
1200
1201 void M_ChangeSensitivity(int choice)
1202 {
1203     switch(choice)
1204     {
1205       case 0:
1206         if (mouseSensitivity)
1207             mouseSensitivity--;
1208         break;
1209       case 1:
1210         if (mouseSensitivity < 9)
1211             mouseSensitivity++;
1212         break;
1213     }
1214 }
1215
1216
1217
1218
1219 void M_ChangeDetail(int choice)
1220 {
1221     choice = 0;
1222     detailLevel = 1 - detailLevel;
1223
1224     R_SetViewSize (screenblocks, detailLevel);
1225
1226     if (!detailLevel)
1227         players[consoleplayer].message = DEH_String(DETAILHI);
1228     else
1229         players[consoleplayer].message = DEH_String(DETAILLO);
1230 }
1231
1232
1233
1234
1235 void M_SizeDisplay(int choice)
1236 {
1237     switch(choice)
1238     {
1239       case 0:
1240         if (screenSize > 0)
1241         {
1242             screenblocks--;
1243             screenSize--;
1244         }
1245         break;
1246       case 1:
1247         if (screenSize < 8)
1248         {
1249             screenblocks++;
1250             screenSize++;
1251         }
1252         break;
1253     }
1254
1255
1256     R_SetViewSize (screenblocks, detailLevel);
1257 }
1258
1259
1260
1261
1262 //
1263 //      Menu Functions
1264 //
1265 void
1266 M_DrawThermo
1267 ( int   x,
1268   int   y,
1269   int   thermWidth,
1270   int   thermDot )
1271 {
1272     int         xx;
1273     int         i;
1274
1275     xx = x;
1276     V_DrawPatchDirect (xx,y,0,W_CacheLumpName(DEH_String("M_THERML"),PU_CACHE));
1277     xx += 8;
1278     for (i=0;i<thermWidth;i++)
1279     {
1280         V_DrawPatchDirect (xx,y,0,W_CacheLumpName(DEH_String("M_THERMM"),PU_CACHE));
1281         xx += 8;
1282     }
1283     V_DrawPatchDirect (xx,y,0,W_CacheLumpName(DEH_String("M_THERMR"),PU_CACHE));
1284
1285     V_DrawPatchDirect ((x+8) + thermDot*8,y,
1286                        0,W_CacheLumpName(DEH_String("M_THERMO"),PU_CACHE));
1287 }
1288
1289
1290
1291 void
1292 M_DrawEmptyCell
1293 ( menu_t*       menu,
1294   int           item )
1295 {
1296     V_DrawPatchDirect (menu->x - 10,        menu->y+item*LINEHEIGHT - 1, 0,
1297                        W_CacheLumpName(DEH_String("M_CELL1"),PU_CACHE));
1298 }
1299
1300 void
1301 M_DrawSelCell
1302 ( menu_t*       menu,
1303   int           item )
1304 {
1305     V_DrawPatchDirect (menu->x - 10,        menu->y+item*LINEHEIGHT - 1, 0,
1306                        W_CacheLumpName(DEH_String("M_CELL2"),PU_CACHE));
1307 }
1308
1309
1310 void
1311 M_StartMessage
1312 ( char*         string,
1313   void*         routine,
1314   boolean       input )
1315 {
1316     messageLastMenuActive = menuactive;
1317     messageToPrint = 1;
1318     messageString = string;
1319     messageRoutine = routine;
1320     messageNeedsInput = input;
1321     menuactive = true;
1322     return;
1323 }
1324
1325
1326
1327 void M_StopMessage(void)
1328 {
1329     menuactive = messageLastMenuActive;
1330     messageToPrint = 0;
1331 }
1332
1333
1334
1335 //
1336 // Find string width from hu_font chars
1337 //
1338 int M_StringWidth(char* string)
1339 {
1340     size_t             i;
1341     int             w = 0;
1342     int             c;
1343
1344     for (i = 0;i < strlen(string);i++)
1345     {
1346         c = toupper(string[i]) - HU_FONTSTART;
1347         if (c < 0 || c >= HU_FONTSIZE)
1348             w += 4;
1349         else
1350             w += SHORT (hu_font[c]->width);
1351     }
1352
1353     return w;
1354 }
1355
1356
1357
1358 //
1359 //      Find string height from hu_font chars
1360 //
1361 int M_StringHeight(char* string)
1362 {
1363     size_t             i;
1364     int             h;
1365     int             height = SHORT(hu_font[0]->height);
1366
1367     h = height;
1368     for (i = 0;i < strlen(string);i++)
1369         if (string[i] == '\n')
1370             h += height;
1371
1372     return h;
1373 }
1374
1375
1376 //
1377 //      Write a string using the hu_font
1378 //
1379 void
1380 M_WriteText
1381 ( int           x,
1382   int           y,
1383   char*         string)
1384 {
1385     int         w;
1386     char*       ch;
1387     int         c;
1388     int         cx;
1389     int         cy;
1390
1391
1392     ch = string;
1393     cx = x;
1394     cy = y;
1395
1396     while(1)
1397     {
1398         c = *ch++;
1399         if (!c)
1400             break;
1401         if (c == '\n')
1402         {
1403             cx = x;
1404             cy += 12;
1405             continue;
1406         }
1407
1408         c = toupper(c) - HU_FONTSTART;
1409         if (c < 0 || c>= HU_FONTSIZE)
1410         {
1411             cx += 4;
1412             continue;
1413         }
1414
1415         w = SHORT (hu_font[c]->width);
1416         if (cx+w > SCREENWIDTH)
1417             break;
1418         V_DrawPatchDirect(cx, cy, 0, hu_font[c]);
1419         cx+=w;
1420     }
1421 }
1422
1423
1424
1425 //
1426 // CONTROL PANEL
1427 //
1428
1429 //
1430 // M_Responder
1431 //
1432 boolean M_Responder (event_t* ev)
1433 {
1434     int             ch;
1435     int             key;
1436     int             i;
1437     static  int     joywait = 0;
1438     static  int     mousewait = 0;
1439     static  int     mousey = 0;
1440     static  int     lasty = 0;
1441     static  int     mousex = 0;
1442     static  int     lastx = 0;
1443
1444     // key is the key pressed, ch is the actual character typed
1445
1446     ch = 0;
1447     key = -1;
1448
1449     if (ev->type == ev_joystick && joywait < I_GetTime())
1450     {
1451         if (ev->data3 == -1)
1452         {
1453             key = key_menu_up;
1454             joywait = I_GetTime() + 5;
1455         }
1456         else if (ev->data3 == 1)
1457         {
1458             key = key_menu_down;
1459             joywait = I_GetTime() + 5;
1460         }
1461
1462         if (ev->data2 == -1)
1463         {
1464             key = key_menu_left;
1465             joywait = I_GetTime() + 2;
1466         }
1467         else if (ev->data2 == 1)
1468         {
1469             key = key_menu_right;
1470             joywait = I_GetTime() + 2;
1471         }
1472
1473         if (ev->data1&1)
1474         {
1475             key = key_menu_forward;
1476             joywait = I_GetTime() + 5;
1477         }
1478         if (ev->data1&2)
1479         {
1480             key = key_menu_back;
1481             joywait = I_GetTime() + 5;
1482         }
1483     }
1484     else
1485     {
1486         if (ev->type == ev_mouse && mousewait < I_GetTime())
1487         {
1488             mousey += ev->data3;
1489             if (mousey < lasty-30)
1490             {
1491                 key = key_menu_down;
1492                 mousewait = I_GetTime() + 5;
1493                 mousey = lasty -= 30;
1494             }
1495             else if (mousey > lasty+30)
1496             {
1497                 key = key_menu_up;
1498                 mousewait = I_GetTime() + 5;
1499                 mousey = lasty += 30;
1500             }
1501
1502             mousex += ev->data2;
1503             if (mousex < lastx-30)
1504             {
1505                 key = key_menu_left;
1506                 mousewait = I_GetTime() + 5;
1507                 mousex = lastx -= 30;
1508             }
1509             else if (mousex > lastx+30)
1510             {
1511                 key = key_menu_right;
1512                 mousewait = I_GetTime() + 5;
1513                 mousex = lastx += 30;
1514             }
1515
1516             if (ev->data1&1)
1517             {
1518                 key = key_menu_forward;
1519                 mousewait = I_GetTime() + 15;
1520             }
1521
1522             if (ev->data1&2)
1523             {
1524                 key = key_menu_back;
1525                 mousewait = I_GetTime() + 15;
1526             }
1527         }
1528         else
1529         {
1530             if (ev->type == ev_keydown)
1531             {
1532                 key = ev->data1;
1533                 ch = ev->data2;
1534             }
1535         }
1536     }
1537
1538     if (key == -1)
1539         return false;
1540
1541     // In testcontrols mode, none of the function keys should do anything
1542     // - the only key is escape to quit.
1543
1544     if (testcontrols)
1545     {
1546         if (key == key_menu_activate || key == key_menu_quit)
1547         {
1548             I_Quit();
1549             return true;
1550         }
1551
1552         return false;
1553     }
1554
1555     // Save Game string input
1556     if (saveStringEnter)
1557     {
1558         switch(key)
1559         {
1560           case KEY_BACKSPACE:
1561             if (saveCharIndex > 0)
1562             {
1563                 saveCharIndex--;
1564                 savegamestrings[saveSlot][saveCharIndex] = 0;
1565             }
1566             break;
1567
1568           case KEY_ESCAPE:
1569             saveStringEnter = 0;
1570             strcpy(&savegamestrings[saveSlot][0],saveOldString);
1571             break;
1572
1573           case KEY_ENTER:
1574             saveStringEnter = 0;
1575             if (savegamestrings[saveSlot][0])
1576                 M_DoSave(saveSlot);
1577             break;
1578
1579           default:
1580             // Entering a character - use the 'ch' value, not the key
1581
1582             ch = toupper(ch);
1583
1584             if (ch != ' '
1585              && (ch - HU_FONTSTART < 0 || ch - HU_FONTSTART >= HU_FONTSIZE))
1586             {
1587                 break;
1588             }
1589
1590             if (ch >= 32 && ch <= 127 &&
1591                 saveCharIndex < SAVESTRINGSIZE-1 &&
1592                 M_StringWidth(savegamestrings[saveSlot]) <
1593                 (SAVESTRINGSIZE-2)*8)
1594             {
1595                 savegamestrings[saveSlot][saveCharIndex++] = ch;
1596                 savegamestrings[saveSlot][saveCharIndex] = 0;
1597             }
1598             break;
1599         }
1600         return true;
1601     }
1602
1603     // Take care of any messages that need input
1604     if (messageToPrint)
1605     {
1606         if (messageNeedsInput)
1607         {
1608             if (key != ' ' && key != KEY_ESCAPE
1609              && key != key_menu_confirm && key != key_menu_abort)
1610             {
1611                 return false;
1612             }
1613         }
1614
1615         menuactive = messageLastMenuActive;
1616         messageToPrint = 0;
1617         if (messageRoutine)
1618             messageRoutine(key);
1619
1620         menuactive = false;
1621         S_StartSound(NULL,sfx_swtchx);
1622         return true;
1623     }
1624
1625     if (devparm && key == key_menu_help)
1626     {
1627         G_ScreenShot ();
1628         return true;
1629     }
1630
1631     // F-Keys
1632     if (!menuactive)
1633     {
1634         if (key == key_menu_decscreen)      // Screen size down
1635         {
1636             if (automapactive || chat_on)
1637                 return false;
1638             M_SizeDisplay(0);
1639             S_StartSound(NULL,sfx_stnmov);
1640             return true;
1641         }
1642         else if (key == key_menu_incscreen) // Screen size up
1643         {
1644             if (automapactive || chat_on)
1645                 return false;
1646             M_SizeDisplay(1);
1647             S_StartSound(NULL,sfx_stnmov);
1648             return true;
1649         }
1650         else if (key == key_menu_help)     // Help key
1651         {
1652             M_StartControlPanel ();
1653
1654             if ( gamemode == retail )
1655               currentMenu = &ReadDef2;
1656             else
1657               currentMenu = &ReadDef1;
1658
1659             itemOn = 0;
1660             S_StartSound(NULL,sfx_swtchn);
1661             return true;
1662         }
1663         else if (key == key_menu_save)     // Save
1664         {
1665             M_StartControlPanel();
1666             S_StartSound(NULL,sfx_swtchn);
1667             M_SaveGame(0);
1668             return true;
1669         }
1670         else if (key == key_menu_load)     // Load
1671         {
1672             M_StartControlPanel();
1673             S_StartSound(NULL,sfx_swtchn);
1674             M_LoadGame(0);
1675             return true;
1676         }
1677         else if (key == key_menu_volume)   // Sound Volume
1678         {
1679             M_StartControlPanel ();
1680             currentMenu = &SoundDef;
1681             itemOn = sfx_vol;
1682             S_StartSound(NULL,sfx_swtchn);
1683             return true;
1684         }
1685         else if (key == key_menu_detail)   // Detail toggle
1686         {
1687             M_ChangeDetail(0);
1688             S_StartSound(NULL,sfx_swtchn);
1689             return true;
1690         }
1691         else if (key == key_menu_qsave)    // Quicksave
1692         {
1693             S_StartSound(NULL,sfx_swtchn);
1694             M_QuickSave();
1695             return true;
1696         }
1697         else if (key == key_menu_endgame)  // End game
1698         {
1699             S_StartSound(NULL,sfx_swtchn);
1700             M_EndGame(0);
1701             return true;
1702         }
1703         else if (key == key_menu_messages) // Toggle messages
1704         {
1705             M_ChangeMessages(0);
1706             S_StartSound(NULL,sfx_swtchn);
1707             return true;
1708         }
1709         else if (key == key_menu_qload)    // Quickload
1710         {
1711             S_StartSound(NULL,sfx_swtchn);
1712             M_QuickLoad();
1713             return true;
1714         }
1715         else if (key == key_menu_quit)     // Quit DOOM
1716         {
1717             S_StartSound(NULL,sfx_swtchn);
1718             M_QuitDOOM(0);
1719             return true;
1720         }
1721         else if (key == key_menu_gamma)    // gamma toggle
1722         {
1723             usegamma++;
1724             if (usegamma > 4)
1725                 usegamma = 0;
1726             players[consoleplayer].message = DEH_String(gammamsg[usegamma]);
1727             I_SetPalette (W_CacheLumpName (DEH_String("PLAYPAL"),PU_CACHE));
1728             return true;
1729         }
1730     }
1731
1732     // Pop-up menu?
1733     if (!menuactive)
1734     {
1735         if (key == key_menu_activate)
1736         {
1737             M_StartControlPanel ();
1738             S_StartSound(NULL,sfx_swtchn);
1739             return true;
1740         }
1741         return false;
1742     }
1743
1744
1745     // Keys usable within menu
1746
1747     if (key == key_menu_down)
1748     {
1749         // Move down to next item
1750
1751         do
1752         {
1753             if (itemOn+1 > currentMenu->numitems-1)
1754                 itemOn = 0;
1755             else itemOn++;
1756             S_StartSound(NULL,sfx_pstop);
1757         } while(currentMenu->menuitems[itemOn].status==-1);
1758
1759         return true;
1760     }
1761     else if (key == key_menu_up)
1762     {
1763         // Move back up to previous item
1764
1765         do
1766         {
1767             if (!itemOn)
1768                 itemOn = currentMenu->numitems-1;
1769             else itemOn--;
1770             S_StartSound(NULL,sfx_pstop);
1771         } while(currentMenu->menuitems[itemOn].status==-1);
1772
1773         return true;
1774     }
1775     else if (key == key_menu_left)
1776     {
1777         // Slide slider left
1778
1779         if (currentMenu->menuitems[itemOn].routine &&
1780             currentMenu->menuitems[itemOn].status == 2)
1781         {
1782             S_StartSound(NULL,sfx_stnmov);
1783             currentMenu->menuitems[itemOn].routine(0);
1784         }
1785         return true;
1786     }
1787     else if (key == key_menu_right)
1788     {
1789         // Slide slider right
1790
1791         if (currentMenu->menuitems[itemOn].routine &&
1792             currentMenu->menuitems[itemOn].status == 2)
1793         {
1794             S_StartSound(NULL,sfx_stnmov);
1795             currentMenu->menuitems[itemOn].routine(1);
1796         }
1797         return true;
1798     }
1799     else if (key == key_menu_forward)
1800     {
1801         // Activate menu item
1802
1803         if (currentMenu->menuitems[itemOn].routine &&
1804             currentMenu->menuitems[itemOn].status)
1805         {
1806             currentMenu->lastOn = itemOn;
1807             if (currentMenu->menuitems[itemOn].status == 2)
1808             {
1809                 currentMenu->menuitems[itemOn].routine(1);      // right arrow
1810                 S_StartSound(NULL,sfx_stnmov);
1811             }
1812             else
1813             {
1814                 currentMenu->menuitems[itemOn].routine(itemOn);
1815                 S_StartSound(NULL,sfx_pistol);
1816             }
1817         }
1818         return true;
1819     }
1820     else if (key == key_menu_activate)
1821     {
1822         // Deactivate menu
1823
1824         currentMenu->lastOn = itemOn;
1825         M_ClearMenus ();
1826         S_StartSound(NULL,sfx_swtchx);
1827         return true;
1828     }
1829     else if (key == key_menu_back)
1830     {
1831         // Go back to previous menu
1832
1833         currentMenu->lastOn = itemOn;
1834         if (currentMenu->prevMenu)
1835         {
1836             currentMenu = currentMenu->prevMenu;
1837             itemOn = currentMenu->lastOn;
1838             S_StartSound(NULL,sfx_swtchn);
1839         }
1840         return true;
1841     }
1842     else if (ch != 0)
1843     {
1844         // Keyboard shortcut?
1845
1846         for (i = itemOn+1;i < currentMenu->numitems;i++)
1847         {
1848             if (currentMenu->menuitems[i].alphaKey == ch)
1849             {
1850                 itemOn = i;
1851                 S_StartSound(NULL,sfx_pstop);
1852                 return true;
1853             }
1854         }
1855
1856         for (i = 0;i <= itemOn;i++)
1857         {
1858             if (currentMenu->menuitems[i].alphaKey == ch)
1859             {
1860                 itemOn = i;
1861                 S_StartSound(NULL,sfx_pstop);
1862                 return true;
1863             }
1864         }
1865     }
1866
1867     return false;
1868 }
1869
1870
1871
1872 //
1873 // M_StartControlPanel
1874 //
1875 void M_StartControlPanel (void)
1876 {
1877     // intro might call this repeatedly
1878     if (menuactive)
1879         return;
1880
1881     menuactive = 1;
1882     currentMenu = &MainDef;         // JDC
1883     itemOn = currentMenu->lastOn;   // JDC
1884 }
1885
1886
1887 //
1888 // M_Drawer
1889 // Called after the view has been rendered,
1890 // but before it has been blitted.
1891 //
1892 void M_Drawer (void)
1893 {
1894     static short        x;
1895     static short        y;
1896     unsigned int        i;
1897     unsigned int        max;
1898     char                string[80];
1899     char               *name;
1900     int                 start;
1901
1902     inhelpscreens = false;
1903
1904     // Horiz. & Vertically center string and print it.
1905     if (messageToPrint)
1906     {
1907         start = 0;
1908         y = 100 - M_StringHeight(messageString) / 2;
1909         while (messageString[start] != '\0')
1910         {
1911             int foundnewline = 0;
1912
1913             for (i = 0; i < strlen(messageString + start); i++)
1914                 if (messageString[start + i] == '\n')
1915                 {
1916                     memset(string, 0, sizeof(string));
1917                     strncpy(string, messageString + start, i);
1918                     foundnewline = 1;
1919                     start += i + 1;
1920                     break;
1921                 }
1922
1923             if (!foundnewline)
1924             {
1925                 strcpy(string, messageString + start);
1926                 start += strlen(string);
1927             }
1928
1929             x = 160 - M_StringWidth(string) / 2;
1930             M_WriteText(x, y, string);
1931             y += SHORT(hu_font[0]->height);
1932         }
1933
1934         return;
1935     }
1936
1937     if (!menuactive)
1938         return;
1939
1940     if (currentMenu->routine)
1941         currentMenu->routine();         // call Draw routine
1942
1943     // DRAW MENU
1944     x = currentMenu->x;
1945     y = currentMenu->y;
1946     max = currentMenu->numitems;
1947
1948     for (i=0;i<max;i++)
1949     {
1950         name = DEH_String(currentMenu->menuitems[i].name);
1951
1952         if (name[0])
1953         {
1954             V_DrawPatchDirect (x,y,0, W_CacheLumpName(name, PU_CACHE));
1955         }
1956         y += LINEHEIGHT;
1957     }
1958
1959
1960     // DRAW SKULL
1961     V_DrawPatchDirect(x + SKULLXOFF,currentMenu->y - 5 + itemOn*LINEHEIGHT, 0,
1962                       W_CacheLumpName(DEH_String(skullName[whichSkull]),
1963                                       PU_CACHE));
1964
1965 }
1966
1967
1968 //
1969 // M_ClearMenus
1970 //
1971 void M_ClearMenus (void)
1972 {
1973     menuactive = 0;
1974     // if (!netgame && usergame && paused)
1975     //       sendpause = true;
1976 }
1977
1978
1979
1980
1981 //
1982 // M_SetupNextMenu
1983 //
1984 void M_SetupNextMenu(menu_t *menudef)
1985 {
1986     currentMenu = menudef;
1987     itemOn = currentMenu->lastOn;
1988 }
1989
1990
1991 //
1992 // M_Ticker
1993 //
1994 void M_Ticker (void)
1995 {
1996     if (--skullAnimCounter <= 0)
1997     {
1998         whichSkull ^= 1;
1999         skullAnimCounter = 8;
2000     }
2001 }
2002
2003
2004 //
2005 // M_Init
2006 //
2007 void M_Init (void)
2008 {
2009     currentMenu = &MainDef;
2010     menuactive = 0;
2011     itemOn = currentMenu->lastOn;
2012     whichSkull = 0;
2013     skullAnimCounter = 10;
2014     screenSize = screenblocks - 3;
2015     messageToPrint = 0;
2016     messageString = NULL;
2017     messageLastMenuActive = menuactive;
2018     quickSaveSlot = -1;
2019
2020     // Here we could catch other version dependencies,
2021     //  like HELP1/2, and four episodes.
2022
2023
2024     switch ( gamemode )
2025     {
2026       case commercial:
2027         // Commercial has no "read this" entry.
2028         MainMenu[readthis] = MainMenu[quitdoom];
2029         MainDef.numitems--;
2030         MainDef.y += 8;
2031         NewDef.prevMenu = &MainDef;
2032         break;
2033       case shareware:
2034         // Episode 2 and 3 are handled,
2035         //  branching to an ad screen.
2036       case registered:
2037         // We need to remove the fourth episode.
2038         EpiDef.numitems--;
2039         break;
2040       case retail:
2041         // We are fine.
2042       default:
2043         break;
2044     }
2045
2046 }
2047