16/cawat/ID_IN.C

   1 /* Catacomb Armageddon Source Code\r
   2  * Copyright (C) 1993-2014 Flat Rock Software\r
   3  *\r
   4  * This program is free software; you can redistribute it and/or modify\r
   5  * it under the terms of the GNU General Public License as published by\r
   6  * the Free Software Foundation; either version 2 of the License, or\r
   7  * (at your option) any later version.\r
   8  *\r
   9  * This program is distributed in the hope that it will be useful,\r
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  12  * GNU General Public License for more details.\r
  13  *\r
  14  * You should have received a copy of the GNU General Public License along\r
  15  * with this program; if not, write to the Free Software Foundation, Inc.,\r
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.\r
  17  */\r
  18 \r
  19 //\r
  20 //      ID Engine\r
  21 //      ID_IN.c - Input Manager\r
  22 //      v1.0d1\r
  23 //      By Jason Blochowiak\r
  24 //\r
  25 \r
  26 //\r
  27 //      This module handles dealing with the various input devices\r
  28 //\r
  29 //      Depends on: Memory Mgr (for demo recording), Sound Mgr (for timing stuff),\r
  30 //                              User Mgr (for command line parms)\r
  31 //\r
  32 //      Globals:\r
  33 //              LastScan - The keyboard scan code of the last key pressed\r
  34 //              LastASCII - The ASCII value of the last key pressed\r
  35 //      DEBUG - there are more globals\r
  36 //\r
  37 \r
  38 //#include "ID_HEADS.H"
  39 #include "id_in.h"\r
  40 //#pragma       hdrstop\r
  41 \r
  42 #define KeyInt  9       // The keyboard ISR number\r
  43 \r
  44 // Stuff for the joystick\r
  45 #define JoyScaleMax             32768\r
  46 #define JoyScaleShift   8\r
  47 #define MaxJoyValue             5000\r
  48 \r
  49 //      Global variables\r
  50                 boolean JoystickCalibrated=false;               // MDM (GAMERS EDGE) - added\r
  51                 ControlType ControlTypeUsed;                            // MDM (GAMERS EDGE) - added\r
  52 \r
  53                 boolean         Keyboard[NumCodes],\r
  54                                         JoysPresent[MaxJoys],\r
  55                                         MousePresent;\r
  56                 boolean         Paused;\r
  57                 char            LastASCII;\r
  58                 ScanCode        LastScan;\r
  59                 KeyboardDef     KbdDefs[MaxKbds] = {{0x1d,0x38,0x47,0x48,0x49,0x4b,0x4d,0x4f,0x50,0x51}};\r
  60                 JoystickDef     JoyDefs[MaxJoys];\r
  61                 ControlType     Controls[MaxPlayers];\r
  62 \r
  63                 Demo            DemoMode = demo_Off;\r
  64                 byte _seg       *DemoBuffer;\r
  65                 word            DemoOffset,DemoSize;\r
  66 \r
  67 //      Internal variables\r
  68 static  boolean         IN_Started;\r
  69 static  boolean         CapsLock;\r
  70 static  ScanCode        CurCode,LastCode;\r
  71 static  byte        far ASCIINames[] =          // Unshifted ASCII for scan codes\r
  72                                         {\r
  73 //       0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F\r
  74         0  ,27 ,'1','2','3','4','5','6','7','8','9','0','-','=',8  ,9  ,        // 0\r
  75         'q','w','e','r','t','y','u','i','o','p','[',']',13 ,0  ,'a','s',        // 1\r
  76         'd','f','g','h','j','k','l',';',39 ,'`',0  ,92 ,'z','x','c','v',        // 2\r
  77         'b','n','m',',','.','/',0  ,'*',0  ,' ',0  ,0  ,0  ,0  ,0  ,0  ,        // 3\r
  78         0  ,0  ,0  ,0  ,0  ,0  ,0  ,'7','8','9','-','4','5','6','+','1',        // 4\r
  79         '2','3','0',127,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,        // 5\r
  80         0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,        // 6\r
  81         0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0           // 7\r
  82                                         },\r
  83                                         far ShiftNames[] =              // Shifted ASCII for scan codes\r
  84                                         {\r
  85 //       0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F\r
  86         0  ,27 ,'!','@','#','$','%','^','&','*','(',')','_','+',8  ,9  ,        // 0\r
  87         'Q','W','E','R','T','Y','U','I','O','P','{','}',13 ,0  ,'A','S',        // 1\r
  88         'D','F','G','H','J','K','L',':',34 ,'~',0  ,'|','Z','X','C','V',        // 2\r
  89         'B','N','M','<','>','?',0  ,'*',0  ,' ',0  ,0  ,0  ,0  ,0  ,0  ,        // 3\r
  90         0  ,0  ,0  ,0  ,0  ,0  ,0  ,'7','8','9','-','4','5','6','+','1',        // 4\r
  91         '2','3','0',127,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,        // 5\r
  92         0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,        // 6\r
  93         0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0           // 7\r
  94                                         },\r
  95                                         far SpecialNames[] =    // ASCII for 0xe0 prefixed codes\r
  96                                         {\r
  97 //       0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F\r
  98         0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,        // 0\r
  99         0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,13 ,0  ,0  ,0  ,        // 1\r
 100         0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,        // 2\r
 101         0  ,0  ,0  ,0  ,0  ,'/',0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,        // 3\r
 102         0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,        // 4\r
 103         0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,        // 5\r
 104         0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,        // 6\r
 105         0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0  ,0           // 7\r
 106                                         },\r
 107 \r
 108 #if 0\r
 109                                         *ScanNames[] =          // Scan code names with single chars\r
 110                                         {\r
 111         "?","?","1","2","3","4","5","6","7","8","9","0","-","+","?","?",\r
 112         "Q","W","E","R","T","Y","U","I","O","P","[","]","|","?","A","S",\r
 113         "D","F","G","H","J","K","L",";","\"","?","?","?","Z","X","C","V",\r
 114         "B","N","M",",",".","/","?","?","?","?","?","?","?","?","?","?",\r
 115         "?","?","?","?","?","?","?","?","\xf","?","-","\x15","5","\x11","+","?",\r
 116         "\x13","?","?","?","?","?","?","?","?","?","?","?","?","?","?","?",\r
 117         "?","?","?","?","?","?","?","?","?","?","?","?","?","?","?","?",\r
 118         "?","?","?","?","?","?","?","?","?","?","?","?","?","?","?","?"\r
 119                                         },      // DEBUG - consolidate these\r
 120 #endif\r
 121 \r
 122                                         far ExtScanCodes[] =    // Scan codes with >1 char names\r
 123                                         {\r
 124         1,0xe,0xf,0x1d,0x2a,0x39,0x3a,0x3b,0x3c,0x3d,0x3e,\r
 125         0x3f,0x40,0x41,0x42,0x43,0x44,0x57,0x59,0x46,0x1c,0x36,\r
 126         0x37,0x38,0x47,0x49,0x4f,0x51,0x52,0x53,0x45,0x48,\r
 127         0x50,0x4b,0x4d,0x00\r
 128                                         };\r
 129 #if 0\r
 130                                         *ExtScanNames[] =       // Names corresponding to ExtScanCodes\r
 131                                         {\r
 132         "Esc","BkSp","Tab","Ctrl","LShft","Space","CapsLk","F1","F2","F3","F4",\r
 133         "F5","F6","F7","F8","F9","F10","F11","F12","ScrlLk","Enter","RShft",\r
 134         "PrtSc","Alt","Home","PgUp","End","PgDn","Ins","Del","NumLk","Up",\r
 135         "Down","Left","Right",""\r
 136                                         };\r
 137 #endif\r
 138 static  Direction       DirTable[] =            // Quick lookup for total direction\r
 139                                         {\r
 140                                                 dir_NorthWest,  dir_North,      dir_NorthEast,\r
 141                                                 dir_West,               dir_None,       dir_East,\r
 142                                                 dir_SouthWest,  dir_South,      dir_SouthEast\r
 143                                         };\r
 144 \r
 145 static  void                    (*INL_KeyHook)(void);\r
 146 static  void interrupt  (*OldKeyVect)(void);\r
 147 \r
 148 static  char                    *ParmStrings[] = {"nojoys","nomouse",nil};\r
 149 \r
 150 //      Internal routines\r
 151 \r
 152 ///////////////////////////////////////////////////////////////////////////\r
 153 //\r
 154 //      INL_KeyService() - Handles a keyboard interrupt (key up/down)\r
 155 //\r
 156 ///////////////////////////////////////////////////////////////////////////\r
 157 static void interrupt\r
 158 INL_KeyService(void)\r
 159 {\r
 160 static  boolean special;\r
 161                 byte    k,c,\r
 162                                 temp;\r
 163 \r
 164         k = inportb(0x60);      // Get the scan code\r
 165 \r
 166         // Tell the XT keyboard controller to clear the key\r
 167         outportb(0x61,(temp = inportb(0x61)) | 0x80);\r
 168         outportb(0x61,temp);\r
 169 \r
 170         if (k == 0xe0)          // Special key prefix\r
 171                 special = true;\r
 172         else if (k == 0xe1)     // Handle Pause key\r
 173                 Paused = true;\r
 174         else\r
 175         {\r
 176                 if (k & 0x80)   // Break code\r
 177                 {\r
 178                         k &= 0x7f;\r
 179 \r
 180 // DEBUG - handle special keys: ctl-alt-delete, print scrn\r
 181 \r
 182                         Keyboard[k] = false;\r
 183                 }\r
 184                 else                    // Make code\r
 185                 {\r
 186                         LastCode = CurCode;\r
 187                         CurCode = LastScan = k;\r
 188                         Keyboard[k] = true;\r
 189 \r
 190                         if (special)\r
 191                                 c = SpecialNames[k];\r
 192                         else\r
 193                         {\r
 194                                 if (k == sc_CapsLock)\r
 195                                 {\r
 196                                         CapsLock ^= true;\r
 197                                         // DEBUG - make caps lock light work\r
 198                                 }\r
 199 \r
 200                                 if (Keyboard[sc_LShift] || Keyboard[sc_RShift]) // If shifted\r
 201                                 {\r
 202                                         c = ShiftNames[k];\r
 203                                         if ((c >= 'A') && (c <= 'Z') && CapsLock)\r
 204                                                 c += 'a' - 'A';\r
 205                                 }\r
 206                                 else\r
 207                                 {\r
 208                                         c = ASCIINames[k];\r
 209                                         if ((c >= 'a') && (c <= 'z') && CapsLock)\r
 210                                                 c -= 'a' - 'A';\r
 211                                 }\r
 212                         }\r
 213                         if (c)\r
 214                                 LastASCII = c;\r
 215                 }\r
 216 \r
 217                 special = false;\r
 218         }\r
 219 \r
 220         if (INL_KeyHook && !special)\r
 221                 INL_KeyHook();\r
 222         outportb(0x20,0x20);\r
 223 }\r
 224 \r
 225 ///////////////////////////////////////////////////////////////////////////\r
 226 //\r
 227 //      INL_GetMouseDelta() - Gets the amount that the mouse has moved from the\r
 228 //              mouse driver\r
 229 //\r
 230 ///////////////////////////////////////////////////////////////////////////\r
 231 static void\r
 232 INL_GetMouseDelta(int *x,int *y)\r
 233 {\r
 234         Mouse(MDelta);\r
 235         *x = _CX;\r
 236         *y = _DX;\r
 237 }\r
 238 \r
 239 ///////////////////////////////////////////////////////////////////////////\r
 240 //\r
 241 //      INL_GetMouseButtons() - Gets the status of the mouse buttons from the\r
 242 //              mouse driver\r
 243 //\r
 244 ///////////////////////////////////////////////////////////////////////////\r
 245 static word\r
 246 INL_GetMouseButtons(void)\r
 247 {\r
 248         word    buttons;\r
 249 \r
 250         Mouse(MButtons);\r
 251         buttons = _BX;\r
 252         return(buttons);\r
 253 }\r
 254 \r
 255 ///////////////////////////////////////////////////////////////////////////\r
 256 //\r
 257 //      IN_GetJoyAbs() - Reads the absolute position of the specified joystick\r
 258 //\r
 259 ///////////////////////////////////////////////////////////////////////////\r
 260 void\r
 261 IN_GetJoyAbs(word joy,word *xp,word *yp)\r
 262 {\r
 263         byte    xb,yb,\r
 264                         xs,ys;\r
 265         word    x,y;\r
 266 \r
 267         x = y = 0;\r
 268         xs = joy? 2 : 0;                // Find shift value for x axis\r
 269         xb = 1 << xs;                   // Use shift value to get x bit mask\r
 270         ys = joy? 3 : 1;                // Do the same for y axis\r
 271         yb = 1 << ys;\r
 272 \r
 273 // Read the absolute joystick values\r
 274 asm             pushf                           // Save some registers\r
 275 asm             push    si\r
 276 asm             push    di\r
 277 asm             cli                                     // Make sure an interrupt doesn't screw the timings\r
 278 \r
 279 \r
 280 asm             mov             dx,0x201\r
 281 asm             in              al,dx\r
 282 asm             out             dx,al           // Clear the resistors\r
 283 \r
 284 asm             mov             ah,[xb]         // Get masks into registers\r
 285 asm             mov             ch,[yb]\r
 286 \r
 287 asm             xor             si,si           // Clear count registers\r
 288 asm             xor             di,di\r
 289 asm             xor             bh,bh           // Clear high byte of bx for later\r
 290 \r
 291 asm             push    bp                      // Don't mess up stack frame\r
 292 asm             mov             bp,MaxJoyValue\r
 293 \r
 294 loop:\r
 295 asm             in              al,dx           // Get bits indicating whether all are finished\r
 296 \r
 297 asm             dec             bp                      // Check bounding register\r
 298 asm             jz              done            // We have a silly value - abort\r
 299 \r
 300 asm             mov             bl,al           // Duplicate the bits\r
 301 asm             and             bl,ah           // Mask off useless bits (in [xb])\r
 302 asm             add             si,bx           // Possibly increment count register\r
 303 asm             mov             cl,bl           // Save for testing later\r
 304 \r
 305 asm             mov             bl,al\r
 306 asm             and             bl,ch           // [yb]\r
 307 asm             add             di,bx\r
 308 \r
 309 asm             add             cl,bl\r
 310 asm             jnz             loop            // If both bits were 0, drop out\r
 311 \r
 312 done:\r
 313 asm     pop             bp\r
 314 \r
 315 asm             mov             cl,[xs]         // Get the number of bits to shift\r
 316 asm             shr             si,cl           //  and shift the count that many times\r
 317 \r
 318 asm             mov             cl,[ys]\r
 319 asm             shr             di,cl\r
 320 \r
 321 asm             mov             [x],si          // Store the values into the variables\r
 322 asm             mov             [y],di\r
 323 \r
 324 asm             pop             di\r
 325 asm             pop             si\r
 326 asm             popf                            // Restore the registers\r
 327 \r
 328         *xp = x;\r
 329         *yp = y;\r
 330 }\r
 331 \r
 332 ///////////////////////////////////////////////////////////////////////////\r
 333 //\r
 334 //      INL_GetJoyDelta() - Returns the relative movement of the specified\r
 335 //              joystick (from +/-127, scaled adaptively)\r
 336 //\r
 337 ///////////////////////////////////////////////////////////////////////////\r
 338 static void\r
 339 INL_GetJoyDelta(word joy,int *dx,int *dy,boolean adaptive)\r
 340 {\r
 341         word            x,y;\r
 342         longword        time;\r
 343         JoystickDef     *def;\r
 344 static  longword        lasttime;\r
 345 \r
 346         IN_GetJoyAbs(joy,&x,&y);\r
 347         def = JoyDefs + joy;\r
 348 \r
 349         if (x < def->threshMinX)\r
 350         {\r
 351                 if (x < def->joyMinX)\r
 352                         x = def->joyMinX;\r
 353 \r
 354                 x = -(x - def->threshMinX);\r
 355                 x *= def->joyMultXL;\r
 356                 x >>= JoyScaleShift;\r
 357                 *dx = (x > 127)? -127 : -x;\r
 358         }\r
 359         else if (x > def->threshMaxX)\r
 360         {\r
 361                 if (x > def->joyMaxX)\r
 362                         x = def->joyMaxX;\r
 363 \r
 364                 x = x - def->threshMaxX;\r
 365                 x *= def->joyMultXH;\r
 366                 x >>= JoyScaleShift;\r
 367                 *dx = (x > 127)? 127 : x;\r
 368         }\r
 369         else\r
 370                 *dx = 0;\r
 371 \r
 372         if (y < def->threshMinY)\r
 373         {\r
 374                 if (y < def->joyMinY)\r
 375                         y = def->joyMinY;\r
 376 \r
 377                 y = -(y - def->threshMinY);\r
 378                 y *= def->joyMultYL;\r
 379                 y >>= JoyScaleShift;\r
 380                 *dy = (y > 127)? -127 : -y;\r
 381         }\r
 382         else if (y > def->threshMaxY)\r
 383         {\r
 384                 if (y > def->joyMaxY)\r
 385                         y = def->joyMaxY;\r
 386 \r
 387                 y = y - def->threshMaxY;\r
 388                 y *= def->joyMultYH;\r
 389                 y >>= JoyScaleShift;\r
 390                 *dy = (y > 127)? 127 : y;\r
 391         }\r
 392         else\r
 393                 *dy = 0;\r
 394 \r
 395         if (adaptive)\r
 396         {\r
 397                 time = (TimeCount - lasttime) / 2;\r
 398                 if (time)\r
 399                 {\r
 400                         if (time > 8)\r
 401                                 time = 8;\r
 402                         *dx *= time;\r
 403                         *dy *= time;\r
 404                 }\r
 405         }\r
 406         lasttime = TimeCount;\r
 407 }\r
 408 \r
 409 ///////////////////////////////////////////////////////////////////////////\r
 410 //\r
 411 //      INL_GetJoyButtons() - Returns the button status of the specified\r
 412 //              joystick\r
 413 //\r
 414 ///////////////////////////////////////////////////////////////////////////\r
 415 static word\r
 416 INL_GetJoyButtons(word joy)\r
 417 {\r
 418 register        word    result;\r
 419 \r
 420         result = inportb(0x201);        // Get all the joystick buttons\r
 421         result >>= joy? 6 : 4;  // Shift into bits 0-1\r
 422         result &= 3;                            // Mask off the useless bits\r
 423         result ^= 3;\r
 424         return(result);\r
 425 }\r
 426 \r
 427 ///////////////////////////////////////////////////////////////////////////\r
 428 //\r
 429 //      IN_GetJoyButtonsDB() - Returns the de-bounced button status of the\r
 430 //              specified joystick\r
 431 //\r
 432 ///////////////////////////////////////////////////////////////////////////\r
 433 word\r
 434 IN_GetJoyButtonsDB(word joy)\r
 435 {\r
 436         longword        lasttime;\r
 437         word            result1,result2;\r
 438 \r
 439         do\r
 440         {\r
 441                 result1 = INL_GetJoyButtons(joy);\r
 442                 lasttime = TimeCount;\r
 443                 while (TimeCount == lasttime)\r
 444                         ;\r
 445                 result2 = INL_GetJoyButtons(joy);\r
 446         } while (result1 != result2);\r
 447         return(result1);\r
 448 }\r
 449 \r
 450 ///////////////////////////////////////////////////////////////////////////\r
 451 //\r
 452 //      INL_StartKbd() - Sets up my keyboard stuff for use\r
 453 //\r
 454 ///////////////////////////////////////////////////////////////////////////\r
 455 static void\r
 456 INL_StartKbd(void)\r
 457 {\r
 458         INL_KeyHook = 0;        // Clear key hook\r
 459 \r
 460         IN_ClearKeysDown();\r
 461 \r
 462         OldKeyVect = getvect(KeyInt);\r
 463         setvect(KeyInt,INL_KeyService);\r
 464 }\r
 465 \r
 466 ///////////////////////////////////////////////////////////////////////////\r
 467 //\r
 468 //      INL_ShutKbd() - Restores keyboard control to the BIOS\r
 469 //\r
 470 ///////////////////////////////////////////////////////////////////////////\r
 471 static void\r
 472 INL_ShutKbd(void)\r
 473 {\r
 474         poke(0x40,0x17,peek(0x40,0x17) & 0xfaf0);       // Clear ctrl/alt/shift flags\r
 475 \r
 476         setvect(KeyInt,OldKeyVect);\r
 477 }\r
 478 \r
 479 ///////////////////////////////////////////////////////////////////////////\r
 480 //\r
 481 //      INL_StartMouse() - Detects and sets up the mouse\r
 482 //\r
 483 ///////////////////////////////////////////////////////////////////////////\r
 484 static boolean\r
 485 INL_StartMouse(void)\r
 486 {\r
 487         if (getvect(MouseInt))\r
 488         {\r
 489                 Mouse(MReset);\r
 490                 if (_AX == 0xffff)\r
 491                         return(true);\r
 492         }\r
 493         return(false);\r
 494 }\r
 495 \r
 496 ///////////////////////////////////////////////////////////////////////////\r
 497 //\r
 498 //      INL_ShutMouse() - Cleans up after the mouse\r
 499 //\r
 500 ///////////////////////////////////////////////////////////////////////////\r
 501 static void\r
 502 INL_ShutMouse(void)\r
 503 {\r
 504 }\r
 505 \r
 506 //\r
 507 //      INL_SetJoyScale() - Sets up scaling values for the specified joystick\r
 508 //\r
 509 static void\r
 510 INL_SetJoyScale(word joy)\r
 511 {\r
 512         JoystickDef     *def;\r
 513 \r
 514         def = &JoyDefs[joy];\r
 515         def->joyMultXL = JoyScaleMax / (def->threshMinX - def->joyMinX);\r
 516         def->joyMultXH = JoyScaleMax / (def->joyMaxX - def->threshMaxX);\r
 517         def->joyMultYL = JoyScaleMax / (def->threshMinY - def->joyMinY);\r
 518         def->joyMultYH = JoyScaleMax / (def->joyMaxY - def->threshMaxY);\r
 519 }\r
 520 \r
 521 ///////////////////////////////////////////////////////////////////////////\r
 522 //\r
 523 //      IN_SetupJoy() - Sets up thresholding values and calls INL_SetJoyScale()\r
 524 //              to set up scaling values\r
 525 //\r
 526 ///////////////////////////////////////////////////////////////////////////\r
 527 void\r
 528 IN_SetupJoy(word joy,word minx,word maxx,word miny,word maxy)\r
 529 {\r
 530         word            d,r;\r
 531         JoystickDef     *def;\r
 532 \r
 533         def = &JoyDefs[joy];\r
 534 \r
 535         def->joyMinX = minx;\r
 536         def->joyMaxX = maxx;\r
 537         r = maxx - minx;\r
 538         d = r / 5;\r
 539         def->threshMinX = ((r / 2) - d) + minx;\r
 540         def->threshMaxX = ((r / 2) + d) + minx;\r
 541 \r
 542         def->joyMinY = miny;\r
 543         def->joyMaxY = maxy;\r
 544         r = maxy - miny;\r
 545         d = r / 5;\r
 546         def->threshMinY = ((r / 2) - d) + miny;\r
 547         def->threshMaxY = ((r / 2) + d) + miny;\r
 548 \r
 549         INL_SetJoyScale(joy);\r
 550 }\r
 551 \r
 552 ///////////////////////////////////////////////////////////////////////////\r
 553 //\r
 554 //      INL_StartJoy() - Detects & auto-configures the specified joystick\r
 555 //                                      The auto-config assumes the joystick is centered\r
 556 //\r
 557 ///////////////////////////////////////////////////////////////////////////\r
 558 static boolean\r
 559 INL_StartJoy(word joy)\r
 560 {\r
 561         word            x,y;\r
 562 \r
 563         IN_GetJoyAbs(joy,&x,&y);\r
 564 \r
 565         if\r
 566         (\r
 567                 ((x == 0) || (x > MaxJoyValue - 10))\r
 568         ||      ((y == 0) || (y > MaxJoyValue - 10))\r
 569         )\r
 570                 return(false);\r
 571         else\r
 572         {\r
 573                 IN_SetupJoy(joy,0,x * 2,0,y * 2);\r
 574                 return(true);\r
 575         }\r
 576 }\r
 577 \r
 578 ///////////////////////////////////////////////////////////////////////////\r
 579 //\r
 580 //      INL_ShutJoy() - Cleans up the joystick stuff\r
 581 //\r
 582 ///////////////////////////////////////////////////////////////////////////\r
 583 static void\r
 584 INL_ShutJoy(word joy)\r
 585 {\r
 586         JoysPresent[joy] = false;\r
 587 }\r
 588 \r
 589 //      Public routines\r
 590 \r
 591 ///////////////////////////////////////////////////////////////////////////\r
 592 //\r
 593 //      IN_Startup() - Starts up the Input Mgr\r
 594 //\r
 595 ///////////////////////////////////////////////////////////////////////////\r
 596 void\r
 597 IN_Startup(void)\r
 598 {\r
 599         boolean checkjoys,checkmouse;\r
 600         word    i;\r
 601 \r
 602         if (IN_Started)\r
 603                 return;\r
 604 \r
 605         checkjoys = true;\r
 606         checkmouse = true;\r
 607         for (i = 1;i < _argc;i++)\r
 608         {\r
 609                 switch (US_CheckParm(_argv[i],ParmStrings))\r
 610                 {\r
 611                 case 0:\r
 612                         checkjoys = false;\r
 613                         break;\r
 614                 case 1:\r
 615                         checkmouse = false;\r
 616                         break;\r
 617                 }\r
 618         }\r
 619 \r
 620         INL_StartKbd();\r
 621         MousePresent = checkmouse? INL_StartMouse() : false;\r
 622 \r
 623         for (i = 0;i < MaxJoys;i++)\r
 624                 JoysPresent[i] = checkjoys? INL_StartJoy(i) : false;\r
 625 \r
 626         IN_Started = true;\r
 627 }\r
 628 \r
 629 ///////////////////////////////////////////////////////////////////////////\r
 630 //\r
 631 //      IN_Default() - Sets up default conditions for the Input Mgr\r
 632 //\r
 633 ///////////////////////////////////////////////////////////////////////////\r
 634 void\r
 635 IN_Default(boolean gotit,ControlType in)\r
 636 {\r
 637         if\r
 638         (\r
 639                 (!gotit)\r
 640         ||      ((in == ctrl_Joystick1) && !JoysPresent[0])\r
 641         ||      ((in == ctrl_Joystick2) && !JoysPresent[1])\r
 642         ||      ((in == ctrl_Mouse) && !MousePresent)\r
 643         )\r
 644                 in = ctrl_Keyboard1;\r
 645         IN_SetControlType(0,in);\r
 646 }\r
 647 \r
 648 ///////////////////////////////////////////////////////////////////////////\r
 649 //\r
 650 //      IN_Shutdown() - Shuts down the Input Mgr\r
 651 //\r
 652 ///////////////////////////////////////////////////////////////////////////\r
 653 void\r
 654 IN_Shutdown(void)\r
 655 {\r
 656         word    i;\r
 657 \r
 658         if (!IN_Started)\r
 659                 return;\r
 660 \r
 661         INL_ShutMouse();\r
 662         for (i = 0;i < MaxJoys;i++)\r
 663                 INL_ShutJoy(i);\r
 664         INL_ShutKbd();\r
 665 \r
 666         IN_Started = false;\r
 667 }\r
 668 \r
 669 ///////////////////////////////////////////////////////////////////////////\r
 670 //\r
 671 //      IN_SetKeyHook() - Sets the routine that gets called by INL_KeyService()\r
 672 //                      everytime a real make/break code gets hit\r
 673 //\r
 674 ///////////////////////////////////////////////////////////////////////////\r
 675 void\r
 676 IN_SetKeyHook(void (*hook)())\r
 677 {\r
 678         INL_KeyHook = hook;\r
 679 }\r
 680 \r
 681 ///////////////////////////////////////////////////////////////////////////\r
 682 //\r
 683 //      IN_ClearKeyDown() - Clears the keyboard array\r
 684 //\r
 685 ///////////////////////////////////////////////////////////////////////////\r
 686 void\r
 687 IN_ClearKeysDown(void)\r
 688 {\r
 689         int     i;\r
 690 \r
 691         LastScan = sc_None;\r
 692         LastASCII = key_None;\r
 693         for (i = 0;i < NumCodes;i++)\r
 694                 Keyboard[i] = false;\r
 695 }\r
 696 \r
 697 ///////////////////////////////////////////////////////////////////////////\r
 698 //\r
 699 //      INL_AdjustCursor() - Internal routine of common code from IN_ReadCursor()\r
 700 //\r
 701 ///////////////////////////////////////////////////////////////////////////\r
 702 static void\r
 703 INL_AdjustCursor(CursorInfo *info,word buttons,int dx,int dy)\r
 704 {\r
 705         if (buttons & (1 << 0))\r
 706                 info->button0 = true;\r
 707         if (buttons & (1 << 1))\r
 708                 info->button1 = true;\r
 709 \r
 710         info->x += dx;\r
 711         info->y += dy;\r
 712 }\r
 713 \r
 714 ///////////////////////////////////////////////////////////////////////////\r
 715 //\r
 716 //      IN_ReadCursor() - Reads the input devices and fills in the cursor info\r
 717 //              struct\r
 718 //\r
 719 ///////////////////////////////////////////////////////////////////////////\r
 720 void\r
 721 IN_ReadCursor(CursorInfo *info)\r
 722 {\r
 723         word    i,\r
 724                         buttons;\r
 725         int             dx,dy;\r
 726 \r
 727         info->x = info->y = 0;\r
 728         info->button0 = info->button1 = false;\r
 729 \r
 730         if (MousePresent)\r
 731         {\r
 732                 buttons = INL_GetMouseButtons();\r
 733                 INL_GetMouseDelta(&dx,&dy);\r
 734                 INL_AdjustCursor(info,buttons,dx,dy);\r
 735         }\r
 736 \r
 737         for (i = 0;i < MaxJoys;i++)\r
 738         {\r
 739                 if (!JoysPresent[i])\r
 740                         continue;\r
 741 \r
 742                 buttons = INL_GetJoyButtons(i);\r
 743                 INL_GetJoyDelta(i,&dx,&dy,true);\r
 744                 dx /= 64;\r
 745                 dy /= 64;\r
 746                 INL_AdjustCursor(info,buttons,dx,dy);\r
 747         }\r
 748 }\r
 749 \r
 750 ///////////////////////////////////////////////////////////////////////////\r
 751 //\r
 752 //      IN_ReadControl() - Reads the device associated with the specified\r
 753 //              player and fills in the control info struct\r
 754 //\r
 755 ///////////////////////////////////////////////////////////////////////////\r
 756 void\r
 757 IN_ReadControl(int player,ControlInfo *info)\r
 758 {\r
 759                         boolean         realdelta=false;                                // MDM (GAMERS EDGE)\r
 760                         byte            dbyte;\r
 761                         word            buttons;\r
 762                         int                     dx,dy;\r
 763                         Motion          mx,my;\r
 764                         ControlType     type;\r
 765 register        KeyboardDef     *def;\r
 766 \r
 767         dx = dy = 0;\r
 768         mx = my = motion_None;\r
 769         buttons = 0;\r
 770 \r
 771 #if 0\r
 772         if (DemoMode == demo_Playback)\r
 773         {\r
 774                 dbyte = DemoBuffer[DemoOffset + 1];\r
 775                 my = (dbyte & 3) - 1;\r
 776                 mx = ((dbyte >> 2) & 3) - 1;\r
 777                 buttons = (dbyte >> 4) & 3;\r
 778 \r
 779                 if (!(--DemoBuffer[DemoOffset]))\r
 780                 {\r
 781                         DemoOffset += 2;\r
 782                         if (DemoOffset >= DemoSize)\r
 783                                 DemoMode = demo_PlayDone;\r
 784                 }\r
 785 \r
 786                 realdelta = false;\r
 787         }\r
 788         else if (DemoMode == demo_PlayDone)\r
 789                 Quit("Demo playback exceeded");\r
 790         else\r
 791 #endif\r
 792         {\r
 793                                                                                                                         // MDM begin (GAMERS EDGE) - added this block\r
 794                 ControlTypeUsed = ctrl_None;\r
 795 \r
 796                 // Handle mouse input...\r
 797                 //\r
 798                 if ((MousePresent) && (ControlTypeUsed == ctrl_None))\r
 799                 {\r
 800                         INL_GetMouseDelta(&dx,&dy);\r
 801                         buttons = INL_GetMouseButtons();\r
 802                         realdelta = true;\r
 803                         if (dx || dy || buttons)\r
 804                                 ControlTypeUsed = ctrl_Mouse;\r
 805                 }\r
 806 \r
 807                 // Handle joystick input...\r
 808                 //\r
 809                 if ((JoystickCalibrated) && (ControlTypeUsed == ctrl_None))\r
 810                 {\r
 811                         type = ctrl_Joystick1;\r
 812                         INL_GetJoyDelta(type - ctrl_Joystick,&dx,&dy,false);\r
 813                         buttons = INL_GetJoyButtons(type - ctrl_Joystick);\r
 814                         realdelta = true;\r
 815                         if (dx || dy || buttons)\r
 816                                 ControlTypeUsed = ctrl_Joystick;\r
 817                 }\r
 818 \r
 819                 // Handle keyboard input...\r
 820                 //\r
 821                 if (ControlTypeUsed == ctrl_None)\r
 822                 {\r
 823                         type = ctrl_Keyboard1;\r
 824                         def = &KbdDefs[type - ctrl_Keyboard];\r
 825 \r
 826                         if (Keyboard[def->upleft])\r
 827                                 mx = motion_Left,my = motion_Up;\r
 828                         else if (Keyboard[def->upright])\r
 829                                 mx = motion_Right,my = motion_Up;\r
 830                         else if (Keyboard[def->downleft])\r
 831                                 mx = motion_Left,my = motion_Down;\r
 832                         else if (Keyboard[def->downright])\r
 833                                 mx = motion_Right,my = motion_Down;\r
 834 \r
 835                         if (Keyboard[def->up])\r
 836                                 my = motion_Up;\r
 837                         else if (Keyboard[def->down])\r
 838                                 my = motion_Down;\r
 839 \r
 840                         if (Keyboard[def->left])\r
 841                                 mx = motion_Left;\r
 842                         else if (Keyboard[def->right])\r
 843                                 mx = motion_Right;\r
 844 \r
 845                         if (Keyboard[def->button0])\r
 846                                 buttons += 1 << 0;\r
 847                         if (Keyboard[def->button1])\r
 848                                 buttons += 1 << 1;\r
 849                         realdelta = false;\r
 850                         if (mx || my || buttons)\r
 851                                 ControlTypeUsed = ctrl_Keyboard;\r
 852                 }                                                                                                       // MDM end (GAMERS EDGE)\r
 853         }\r
 854 \r
 855         if (realdelta)\r
 856         {\r
 857                 mx = (dx < 0)? motion_Left : ((dx > 0)? motion_Right : motion_None);\r
 858                 my = (dy < 0)? motion_Up : ((dy > 0)? motion_Down : motion_None);\r
 859         }\r
 860         else\r
 861         {\r
 862                 dx = mx * 127;\r
 863                 dy = my * 127;\r
 864         }\r
 865 \r
 866         info->x = dx;\r
 867         info->xaxis = mx;\r
 868         info->y = dy;\r
 869         info->yaxis = my;\r
 870         info->button0 = buttons & (1 << 0);\r
 871         info->button1 = buttons & (1 << 1);\r
 872         info->dir = DirTable[((my + 1) * 3) + (mx + 1)];\r
 873 \r
 874 #if 0\r
 875         if (DemoMode == demo_Record)\r
 876         {\r
 877                 // Pack the control info into a byte\r
 878                 dbyte = (buttons << 4) | ((mx + 1) << 2) | (my + 1);\r
 879 \r
 880                 if\r
 881                 (\r
 882                         (DemoBuffer[DemoOffset + 1] == dbyte)\r
 883                 &&      (DemoBuffer[DemoOffset] < 255)\r
 884                 )\r
 885                         (DemoBuffer[DemoOffset])++;\r
 886                 else\r
 887                 {\r
 888                         if (DemoOffset || DemoBuffer[DemoOffset])\r
 889                                 DemoOffset += 2;\r
 890 \r
 891                         if (DemoOffset >= DemoSize)\r
 892                                 Quit("Demo buffer overflow");\r
 893 \r
 894                         DemoBuffer[DemoOffset] = 1;\r
 895                         DemoBuffer[DemoOffset + 1] = dbyte;\r
 896                 }\r
 897         }\r
 898 #endif\r
 899 }\r
 900 \r
 901 #if 0\r
 902 ///////////////////////////////////////////////////////////////////////////\r
 903 //\r
 904 //      IN_ReadControl() - Reads the device associated with the specified\r
 905 //              player and fills in the control info struct\r
 906 //\r
 907 ///////////////////////////////////////////////////////////////////////////\r
 908 void\r
 909 IN_ReadControl(int player,ControlInfo *info)\r
 910 {\r
 911                         boolean         realdelta;\r
 912                         byte            dbyte;\r
 913                         word            buttons;\r
 914                         int                     dx,dy;\r
 915                         Motion          mx,my;\r
 916                         ControlType     type;\r
 917 register        KeyboardDef     *def;\r
 918 \r
 919         dx = dy = 0;\r
 920         mx = my = motion_None;\r
 921         buttons = 0;\r
 922 \r
 923 #if 0\r
 924         if (DemoMode == demo_Playback)\r
 925         {\r
 926                 dbyte = DemoBuffer[DemoOffset + 1];\r
 927                 my = (dbyte & 3) - 1;\r
 928                 mx = ((dbyte >> 2) & 3) - 1;\r
 929                 buttons = (dbyte >> 4) & 3;\r
 930 \r
 931                 if (!(--DemoBuffer[DemoOffset]))\r
 932                 {\r
 933                         DemoOffset += 2;\r
 934                         if (DemoOffset >= DemoSize)\r
 935                                 DemoMode = demo_PlayDone;\r
 936                 }\r
 937 \r
 938                 realdelta = false;\r
 939         }\r
 940         else if (DemoMode == demo_PlayDone)\r
 941                 Quit("Demo playback exceeded");\r
 942         else\r
 943 #endif\r
 944         {\r
 945                 switch (type = Controls[player])\r
 946                 {\r
 947                 case ctrl_Keyboard1:\r
 948                 case ctrl_Keyboard2:\r
 949                         def = &KbdDefs[type - ctrl_Keyboard];\r
 950 \r
 951                         if (Keyboard[def->upleft])\r
 952                                 mx = motion_Left,my = motion_Up;\r
 953                         else if (Keyboard[def->upright])\r
 954                                 mx = motion_Right,my = motion_Up;\r
 955                         else if (Keyboard[def->downleft])\r
 956                                 mx = motion_Left,my = motion_Down;\r
 957                         else if (Keyboard[def->downright])\r
 958                                 mx = motion_Right,my = motion_Down;\r
 959 \r
 960                         if (Keyboard[def->up])\r
 961                                 my = motion_Up;\r
 962                         else if (Keyboard[def->down])\r
 963                                 my = motion_Down;\r
 964 \r
 965                         if (Keyboard[def->left])\r
 966                                 mx = motion_Left;\r
 967                         else if (Keyboard[def->right])\r
 968                                 mx = motion_Right;\r
 969 \r
 970                         if (Keyboard[def->button0])\r
 971                                 buttons += 1 << 0;\r
 972                         if (Keyboard[def->button1])\r
 973                                 buttons += 1 << 1;\r
 974                         realdelta = false;\r
 975                         break;\r
 976                 case ctrl_Joystick1:\r
 977                 case ctrl_Joystick2:\r
 978                         INL_GetJoyDelta(type - ctrl_Joystick,&dx,&dy,false);\r
 979                         buttons = INL_GetJoyButtons(type - ctrl_Joystick);\r
 980                         realdelta = true;\r
 981                         break;\r
 982                 case ctrl_Mouse:\r
 983                         INL_GetMouseDelta(&dx,&dy);\r
 984                         buttons = INL_GetMouseButtons();\r
 985                         realdelta = true;\r
 986                         break;\r
 987                 }\r
 988         }\r
 989 \r
 990         if (realdelta)\r
 991         {\r
 992                 mx = (dx < 0)? motion_Left : ((dx > 0)? motion_Right : motion_None);\r
 993                 my = (dy < 0)? motion_Up : ((dy > 0)? motion_Down : motion_None);\r
 994         }\r
 995         else\r
 996         {\r
 997                 dx = mx * 127;\r
 998                 dy = my * 127;\r
 999         }\r
1000 \r
1001         info->x = dx;\r
1002         info->xaxis = mx;\r
1003         info->y = dy;\r
1004         info->yaxis = my;\r
1005         info->button0 = buttons & (1 << 0);\r
1006         info->button1 = buttons & (1 << 1);\r
1007         info->dir = DirTable[((my + 1) * 3) + (mx + 1)];\r
1008 \r
1009 #if 0\r
1010         if (DemoMode == demo_Record)\r
1011         {\r
1012                 // Pack the control info into a byte\r
1013                 dbyte = (buttons << 4) | ((mx + 1) << 2) | (my + 1);\r
1014 \r
1015                 if\r
1016                 (\r
1017                         (DemoBuffer[DemoOffset + 1] == dbyte)\r
1018                 &&      (DemoBuffer[DemoOffset] < 255)\r
1019                 )\r
1020                         (DemoBuffer[DemoOffset])++;\r
1021                 else\r
1022                 {\r
1023                         if (DemoOffset || DemoBuffer[DemoOffset])\r
1024                                 DemoOffset += 2;\r
1025 \r
1026                         if (DemoOffset >= DemoSize)\r
1027                                 Quit("Demo buffer overflow");\r
1028 \r
1029                         DemoBuffer[DemoOffset] = 1;\r
1030                         DemoBuffer[DemoOffset + 1] = dbyte;\r
1031                 }\r
1032         }\r
1033 #endif\r
1034 }\r
1035 #endif\r
1036 \r
1037 ///////////////////////////////////////////////////////////////////////////\r
1038 //\r
1039 //      IN_SetControlType() - Sets the control type to be used by the specified\r
1040 //              player\r
1041 //\r
1042 ///////////////////////////////////////////////////////////////////////////\r
1043 void\r
1044 IN_SetControlType(int player,ControlType type)\r
1045 {\r
1046         // DEBUG - check that requested type is present?\r
1047         Controls[player] = type;\r
1048 }\r
1049 \r
1050 #if 0\r
1051 ///////////////////////////////////////////////////////////////////////////\r
1052 //\r
1053 //      IN_StartDemoRecord() - Starts the demo recording, using a buffer the\r
1054 //              size passed. Returns if the buffer allocation was successful\r
1055 //\r
1056 ///////////////////////////////////////////////////////////////////////////\r
1057 boolean\r
1058 IN_StartDemoRecord(word bufsize)\r
1059 {\r
1060         if (!bufsize)\r
1061                 return(false);\r
1062 \r
1063         MM_GetPtr((memptr *)&DemoBuffer,bufsize);\r
1064         DemoMode = demo_Record;\r
1065         DemoSize = bufsize & ~1;\r
1066         DemoOffset = 0;\r
1067         DemoBuffer[0] = DemoBuffer[1] = 0;\r
1068 \r
1069         return(true);\r
1070 }\r
1071 \r
1072 ///////////////////////////////////////////////////////////////////////////\r
1073 //\r
1074 //      IN_StartDemoPlayback() - Plays back the demo pointed to of the given size\r
1075 //\r
1076 ///////////////////////////////////////////////////////////////////////////\r
1077 void\r
1078 IN_StartDemoPlayback(byte /*_1seg*/ *buffer,word bufsize)\r
1079 {\r
1080         DemoBuffer = buffer;\r
1081         DemoMode = demo_Playback;\r
1082         DemoSize = bufsize & ~1;\r
1083         DemoOffset = 0;\r
1084 }\r
1085 \r
1086 ///////////////////////////////////////////////////////////////////////////\r
1087 //\r
1088 //      IN_StopDemo() - Turns off demo mode\r
1089 //\r
1090 ///////////////////////////////////////////////////////////////////////////\r
1091 void\r
1092 IN_StopDemo(void)\r
1093 {\r
1094         if ((DemoMode == demo_Record) && DemoOffset)\r
1095                 DemoOffset += 2;\r
1096 \r
1097         DemoMode = demo_Off;\r
1098 }\r
1099 \r
1100 ///////////////////////////////////////////////////////////////////////////\r
1101 //\r
1102 //      IN_FreeDemoBuffer() - Frees the demo buffer, if it's been allocated\r
1103 //\r
1104 ///////////////////////////////////////////////////////////////////////////\r
1105 void\r
1106 IN_FreeDemoBuffer(void)\r
1107 {\r
1108         if (DemoBuffer)\r
1109                 MM_FreePtr((memptr *)&DemoBuffer);\r
1110 }\r
1111 #endif\r
1112 \r
1113 \r
1114 #if 0\r
1115 ///////////////////////////////////////////////////////////////////////////\r
1116 //\r
1117 //      IN_GetScanName() - Returns a string containing the name of the\r
1118 //              specified scan code\r
1119 //\r
1120 ///////////////////////////////////////////////////////////////////////////\r
1121 byte *\r
1122 IN_GetScanName(ScanCode scan)\r
1123 {\r
1124         byte            **p;\r
1125         ScanCode        far *s;\r
1126 \r
1127         for (s = ExtScanCodes,p = ExtScanNames;*s;p++,s++)\r
1128                 if (*s == scan)\r
1129                         return(*p);\r
1130 \r
1131         return(ScanNames[scan]);\r
1132 }\r
1133 #endif\r
1134 \r
1135 \r
1136 ///////////////////////////////////////////////////////////////////////////\r
1137 //\r
1138 //      IN_WaitForKey() - Waits for a scan code, then clears LastScan and\r
1139 //              returns the scan code\r
1140 //\r
1141 ///////////////////////////////////////////////////////////////////////////\r
1142 ScanCode\r
1143 IN_WaitForKey(void)\r
1144 {\r
1145         ScanCode        result;\r
1146 \r
1147         while (!(result = LastScan))\r
1148                 ;\r
1149         LastScan = 0;\r
1150         return(result);\r
1151 }\r
1152 \r
1153 ///////////////////////////////////////////////////////////////////////////\r
1154 //\r
1155 //      IN_WaitForASCII() - Waits for an ASCII char, then clears LastASCII and\r
1156 //              returns the ASCII value\r
1157 //\r
1158 ///////////////////////////////////////////////////////////////////////////\r
1159 char\r
1160 IN_WaitForASCII(void)\r
1161 {\r
1162         char            result;\r
1163 \r
1164         while (!(result = LastASCII))\r
1165                 ;\r
1166         LastASCII = '\0';\r
1167         return(result);\r
1168 }\r
1169 \r
1170 ///////////////////////////////////////////////////////////////////////////\r
1171 //\r
1172 //      IN_AckBack() - Waits for either an ASCII keypress or a button press\r
1173 //\r
1174 ///////////////////////////////////////////////////////////////////////////\r
1175 void\r
1176 IN_AckBack(void)\r
1177 {\r
1178         word    i;\r
1179 \r
1180         while (!LastScan)\r
1181         {\r
1182                 if (MousePresent)\r
1183                 {\r
1184                         if (INL_GetMouseButtons())\r
1185                         {\r
1186                                 while (INL_GetMouseButtons())\r
1187                                         ;\r
1188                                 return;\r
1189                         }\r
1190                 }\r
1191 \r
1192                 for (i = 0;i < MaxJoys;i++)\r
1193                 {\r
1194                         if (JoysPresent[i])\r
1195                         {\r
1196                                 if (IN_GetJoyButtonsDB(i))\r
1197                                 {\r
1198                                         while (IN_GetJoyButtonsDB(i))\r
1199                                                 ;\r
1200                                         return;\r
1201                                 }\r
1202                         }\r
1203                 }\r
1204         }\r
1205 \r
1206         IN_ClearKey(LastScan);\r
1207         LastScan = sc_None;\r
1208 }\r
1209 \r
1210 ///////////////////////////////////////////////////////////////////////////\r
1211 //\r
1212 //      IN_Ack() - Clears user input & then calls IN_AckBack()\r
1213 //\r
1214 ///////////////////////////////////////////////////////////////////////////\r
1215 void\r
1216 IN_Ack(void)\r
1217 {\r
1218         word    i;\r
1219 \r
1220         IN_ClearKey(LastScan);\r
1221         LastScan = sc_None;\r
1222 \r
1223         if (MousePresent)\r
1224                 while (INL_GetMouseButtons())\r
1225                                         ;\r
1226         for (i = 0;i < MaxJoys;i++)\r
1227                 if (JoysPresent[i])\r
1228                         while (IN_GetJoyButtonsDB(i))\r
1229                                 ;\r
1230 \r
1231         IN_AckBack();\r
1232 }\r
1233 \r
1234 ///////////////////////////////////////////////////////////////////////////\r
1235 //\r
1236 //      IN_IsUserInput() - Returns true if a key has been pressed or a button\r
1237 //              is down\r
1238 //\r
1239 ///////////////////////////////////////////////////////////////////////////\r
1240 boolean\r
1241 IN_IsUserInput(void)\r
1242 {\r
1243         boolean result;\r
1244         word    i;\r
1245 \r
1246         result = LastScan;\r
1247 \r
1248         if (MousePresent)\r
1249                 if (INL_GetMouseButtons())\r
1250                         result = true;\r
1251 \r
1252         for (i = 0;i < MaxJoys;i++)\r
1253                 if (JoysPresent[i])\r
1254                         if (INL_GetJoyButtons(i))\r
1255                                 result = true;\r
1256 \r
1257         return(result);\r
1258 }\r
1259 \r
1260 ///////////////////////////////////////////////////////////////////////////\r
1261 //\r
1262 //      IN_UserInput() - Waits for the specified delay time (in ticks) or the\r
1263 //              user pressing a key or a mouse button. If the clear flag is set, it\r
1264 //              then either clears the key or waits for the user to let the mouse\r
1265 //              button up.\r
1266 //\r
1267 ///////////////////////////////////////////////////////////////////////////\r
1268 boolean\r
1269 IN_UserInput(longword delay,boolean clear)\r
1270 {\r
1271         longword        lasttime;\r
1272 \r
1273         lasttime = TimeCount;\r
1274         do\r
1275         {\r
1276                 if (IN_IsUserInput())\r
1277                 {\r
1278                         if (clear)\r
1279                                 IN_AckBack();\r
1280                         return(true);\r
1281                 }\r
1282         } while (TimeCount - lasttime < delay);\r
1283         return(false);\r
1284 }\r