cvs.zerfleddert.de Git - micropolis/blob - src/sim/w_tk.c

   1 /* w_tk.c
   2  *
   3  * Micropolis, Unix Version.  This game was released for the Unix platform
   4  * in or about 1990 and has been modified for inclusion in the One Laptop
   5  * Per Child program.  Copyright (C) 1989 - 2007 Electronic Arts Inc.  If
   6  * you need assistance with this program, you may contact:
   7  *   http://wiki.laptop.org/go/Micropolis  or email  micropolis@laptop.org.
   8  *
   9  * This program is free software: you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation, either version 3 of the License, or (at
  12  * your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.  You should have received a
  18  * copy of the GNU General Public License along with this program.  If
  19  * not, see <http://www.gnu.org/licenses/>.
  20  *
  21  *             ADDITIONAL TERMS per GNU GPL Section 7
  22  *
  23  * No trademark or publicity rights are granted.  This license does NOT
  24  * give you any right, title or interest in the trademark SimCity or any
  25  * other Electronic Arts trademark.  You may not distribute any
  26  * modification of this program using the trademark SimCity or claim any
  27  * affliation or association with Electronic Arts Inc. or its employees.
  28  *
  29  * Any propagation or conveyance of this program must include this
  30  * copyright notice and these terms.
  31  *
  32  * If you convey this program (or any modifications of it) and assume
  33  * contractual liability for the program to recipients of it, you agree
  34  * to indemnify Electronic Arts for any liability that those contractual
  35  * assumptions impose on Electronic Arts.
  36  *
  37  * You may not misrepresent the origins of this program; modified
  38  * versions of the program must be marked as such and not identified as
  39  * the original program.
  40  *
  41  * This disclaimer supplements the one included in the General Public
  42  * License.  TO THE FULLEST EXTENT PERMISSIBLE UNDER APPLICABLE LAW, THIS
  43  * PROGRAM IS PROVIDED TO YOU "AS IS," WITH ALL FAULTS, WITHOUT WARRANTY
  44  * OF ANY KIND, AND YOUR USE IS AT YOUR SOLE RISK.  THE ENTIRE RISK OF
  45  * SATISFACTORY QUALITY AND PERFORMANCE RESIDES WITH YOU.  ELECTRONIC ARTS
  46  * DISCLAIMS ANY AND ALL EXPRESS, IMPLIED OR STATUTORY WARRANTIES,
  47  * INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY, SATISFACTORY QUALITY,
  48  * FITNESS FOR A PARTICULAR PURPOSE, NONINFRINGEMENT OF THIRD PARTY
  49  * RIGHTS, AND WARRANTIES (IF ANY) ARISING FROM A COURSE OF DEALING,
  50  * USAGE, OR TRADE PRACTICE.  ELECTRONIC ARTS DOES NOT WARRANT AGAINST
  51  * INTERFERENCE WITH YOUR ENJOYMENT OF THE PROGRAM; THAT THE PROGRAM WILL
  52  * MEET YOUR REQUIREMENTS; THAT OPERATION OF THE PROGRAM WILL BE
  53  * UNINTERRUPTED OR ERROR-FREE, OR THAT THE PROGRAM WILL BE COMPATIBLE
  54  * WITH THIRD PARTY SOFTWARE OR THAT ANY ERRORS IN THE PROGRAM WILL BE
  55  * CORRECTED.  NO ORAL OR WRITTEN ADVICE PROVIDED BY ELECTRONIC ARTS OR
  56  * ANY AUTHORIZED REPRESENTATIVE SHALL CREATE A WARRANTY.  SOME
  57  * JURISDICTIONS DO NOT ALLOW THE EXCLUSION OF OR LIMITATIONS ON IMPLIED
  58  * WARRANTIES OR THE LIMITATIONS ON THE APPLICABLE STATUTORY RIGHTS OF A
  59  * CONSUMER, SO SOME OR ALL OF THE ABOVE EXCLUSIONS AND LIMITATIONS MAY
  60  * NOT APPLY TO YOU.
  61  */
  62 #include "sim.h"
  63
  64 #ifdef MSDOS
  65 #define filename2UNIX(name)     \
  66     {   char *p; for (p = name; *p; p++) if (*p == '\\') *p = '/'; }
  67 #else
  68 #define filename2UNIX(name)     /**/
  69 #endif
  70
  71
  72 Tcl_Interp *tk_mainInterp = NULL;
  73 Tcl_CmdBuf buffer = NULL;
  74 Tk_TimerToken sim_timer_token = 0;
  75 int sim_timer_idle = 0;
  76 int sim_timer_set = 0;
  77 Tk_Window MainWindow;
  78 int UpdateDelayed = 0;
  79 int AutoScrollEdge = 16;
  80 int AutoScrollStep = 16;
  81 int AutoScrollDelay = 10;
  82 Tk_TimerToken earthquake_timer_token;
  83 int earthquake_timer_set = 0;
  84 int earthquake_delay = 3000;
  85 int PerformanceTiming;
  86 double FlushTime;
  87 int NeedRest = 0;
  88
  89
  90 #define DEF_VIEW_FONT   "-Adobe-Helvetica-Bold-R-Normal-*-140-*"
  91
  92 Tk_ConfigSpec TileViewConfigSpecs[] = {
  93     {TK_CONFIG_FONT, "-font", (char *) NULL, (char *) NULL,
  94         DEF_VIEW_FONT, Tk_Offset(SimView, fontPtr), 0},
  95     {TK_CONFIG_STRING, "-messagevar", (char *) NULL, (char *) NULL,
  96         NULL, Tk_Offset(SimView, message_var), 0},
  97     {TK_CONFIG_PIXELS, "-width", "width", "Width",
  98         0, Tk_Offset(SimView, width), 0},
  99     {TK_CONFIG_PIXELS, "-height", "height", "Height",
 100         0, Tk_Offset(SimView, height), 0},
 101     {TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL,
 102         (char *) NULL, 0, 0}
 103 };
 104
 105
 106 int TileViewCmd(CLIENT_ARGS);
 107 int ConfigureTileView(Tcl_Interp *interp, SimView *view,
 108                       int argc, char **argv, int flags);
 109 static void TileViewEventProc(ClientData clientData, XEvent *eventPtr);
 110 static void DestroyTileView(ClientData clientData);
 111
 112 int ConfigureSimGraph(Tcl_Interp *interp, SimGraph *graph,
 113                       int argc, char **argv, int flags);
 114
 115 static void MicropolisTimerProc(ClientData clientData);
 116
 117 int SimCmd(CLIENT_ARGS);
 118 int DoEditorCmd(CLIENT_ARGS);
 119 int DoMapCmd(CLIENT_ARGS);
 120 int GraphViewCmd(CLIENT_ARGS);
 121 int DoGraphCmd(CLIENT_ARGS);
 122 int SpriteCmd(CLIENT_ARGS);
 123 extern int Tk_PieMenuCmd();
 124 extern int Tk_IntervalCmd();
 125
 126
 127 int
 128 TileViewCmd(CLIENT_ARGS)
 129 {
 130   Tk_Window tkwin = (Tk_Window) clientData;
 131   SimView *view;
 132   int viewclass;
 133
 134   if (argc < 2) {
 135     Tcl_AppendResult(interp, "wrong # args:  should be \"",
 136                      argv[0], " pathName ?options?\"", (char *) NULL);
 137     return TCL_ERROR;
 138   }
 139
 140   if (strcmp(argv[0], "editorview") == 0)
 141     viewclass = Editor_Class;
 142   else if (strcmp(argv[0], "mapview") == 0)
 143     viewclass = Map_Class;
 144   else {
 145     return TCL_ERROR;
 146   }
 147
 148   tkwin = Tk_CreateWindowFromPath(interp, tkwin,
 149                                   argv[1], (char *) NULL);
 150   if (tkwin == NULL) {
 151     return TCL_ERROR;
 152   }
 153
 154   view = (SimView *)ckalloc(sizeof (SimView));
 155
 156   view->tkwin = tkwin;
 157   view->interp = interp;
 158   view->flags = 0;
 159
 160   if (viewclass == Editor_Class) {
 161     Tk_SetClass(view->tkwin, "EditorView");
 162
 163     Tk_CreateEventHandler(view->tkwin,
 164                           VisibilityChangeMask |
 165                           ExposureMask |
 166                           StructureNotifyMask |
 167                           EnterWindowMask |
 168                           LeaveWindowMask |
 169                           PointerMotionMask,
 170                           TileViewEventProc, (ClientData) view);
 171     Tcl_CreateCommand(interp, Tk_PathName(view->tkwin),
 172                       DoEditorCmd, (ClientData) view, (void (*)()) NULL);
 173   } else {
 174     Tk_SetClass(view->tkwin, "MapView");
 175
 176     Tk_CreateEventHandler(view->tkwin,
 177                           VisibilityChangeMask |
 178                           ExposureMask |
 179                           StructureNotifyMask /* |
 180                           EnterWindowMask |
 181                           LeaveWindowMask |
 182                           PointerMotionMask */ ,
 183                           TileViewEventProc, (ClientData) view);
 184     Tcl_CreateCommand(interp, Tk_PathName(view->tkwin),
 185                       DoMapCmd, (ClientData) view, (void (*)()) NULL);
 186   }
 187
 188   Tk_MakeWindowExist(view->tkwin);
 189
 190   if (getenv("XSYNCHRONIZE") != NULL) {
 191     XSynchronize(Tk_Display(tkwin), 1);
 192   }
 193
 194   if (viewclass == Editor_Class) {
 195     InitNewView(view, "MicropolisEditor", Editor_Class, EDITOR_W, EDITOR_H);
 196     DoNewEditor(view);
 197   } else {
 198     InitNewView(view, "MicropolisMap", Map_Class, MAP_W, MAP_H);
 199     DoNewMap(view);
 200   }
 201
 202   if (ConfigureTileView(interp, view, argc-2, argv+2, 0) != TCL_OK) {
 203     /* XXX: destroy view */
 204     Tk_DestroyWindow(view->tkwin);
 205     return TCL_ERROR;
 206   }
 207
 208   switch (view->class) {
 209   case Editor_Class:
 210     break;
 211   case Map_Class:
 212     view->invalid = 1;
 213     view->update = 1;
 214     DoUpdateMap(view);
 215     break;
 216   }
 217
 218   interp->result = Tk_PathName(view->tkwin);
 219   return TCL_OK;
 220 }
 221
 222
 223 int
 224 ConfigureTileView(Tcl_Interp *interp, SimView *view,
 225              int argc, char **argv, int flags)
 226 {
 227   if (Tk_ConfigureWidget(interp, view->tkwin, TileViewConfigSpecs,
 228                          argc, argv, (char *) view, flags) != TCL_OK) {
 229     return TCL_ERROR;
 230   }
 231
 232   if (view->class == Map_Class) {
 233     Tk_GeometryRequest(view->tkwin, MAP_W, MAP_H);
 234   } else {
 235     if (view->width || view->height) {
 236       Tk_GeometryRequest(view->tkwin, view->width, view->height);
 237     }
 238   }
 239   EventuallyRedrawView(view);
 240   return TCL_OK;
 241 }
 242
 243
 244 InvalidateMaps()
 245 {
 246   SimView *view;
 247
 248 //fprintf(stderr, "InvalidateMaps\n");
 249   for (view = sim->map; view != NULL; view = view->next) {
 250     view->invalid = 1;
 251     view->skip = 0;
 252     EventuallyRedrawView(view);
 253   }
 254   sim_skip = 0;
 255 }
 256
 257
 258 InvalidateEditors()
 259 {
 260   SimView *view;
 261
 262 //fprintf(stderr, "InvalidateEditors\n");
 263   for (view = sim->editor; view != NULL; view = view->next) {
 264     view->invalid = 1;
 265     view->skip = 0;
 266     EventuallyRedrawView(view);
 267   }
 268   sim_skip = 0;
 269 }
 270
 271
 272 RedrawMaps()
 273 {
 274   SimView *view;
 275
 276 //fprintf(stderr, "RedrawMaps\n");
 277
 278   for (view = sim->map; view != NULL; view = view->next) {
 279     view->skip = 0;
 280     EventuallyRedrawView(view);
 281   }
 282   sim_skip = 0;
 283 }
 284
 285
 286 RedrawEditors()
 287 {
 288   SimView *view;
 289
 290 //fprintf(stderr, "RedrawEditors\n");
 291
 292   for (view = sim->editor; view != NULL; view = view->next) {
 293     view->skip = 0;
 294     EventuallyRedrawView(view);
 295   }
 296   sim_skip = 0;
 297 }
 298
 299
 300 static void
 301 DisplayTileView(ClientData clientData)
 302 {
 303   SimView *view = (SimView *) clientData;
 304   Tk_Window tkwin = view->tkwin;
 305   Pixmap pm = None;
 306   Drawable d;
 307
 308   view->flags &= ~VIEW_REDRAW_PENDING;
 309   if (view->visible && (tkwin != NULL) && Tk_IsMapped(tkwin)) {
 310     switch (view->class) {
 311     case Editor_Class:
 312       view->skip = 0;
 313       view->update = 1;
 314       DoUpdateEditor(view);
 315       break;
 316     case Map_Class:
 317 //fprintf(stderr, "DisplayTileView\n");
 318       view->skip = 0;
 319       view->update = 1;
 320       DoUpdateMap(view);
 321       break;
 322     }
 323   }
 324 }
 325
 326
 327 /* comefrom:
 328     ConfigureTileView
 329     TileViewEventProc expose configure motion
 330     InvalidateMaps
 331     EraserTo
 332     DoSetMapState
 333     AddInk
 334     EraserTo
 335  */
 336
 337 EventuallyRedrawView(SimView *view)
 338 {
 339   if (!(view->flags & VIEW_REDRAW_PENDING)) {
 340     Tk_DoWhenIdle(DisplayTileView, (ClientData) view);
 341     view->flags |= VIEW_REDRAW_PENDING;
 342   }
 343
 344 }
 345
 346
 347 CancelRedrawView(SimView *view)
 348 {
 349   if (view->flags & VIEW_REDRAW_PENDING) {
 350     Tk_CancelIdleCall(DisplayTileView, (ClientData) view);
 351   }
 352   view->flags &= ~VIEW_REDRAW_PENDING;
 353 }
 354
 355
 356 static void
 357 TileAutoScrollProc(ClientData clientData)
 358 {
 359   SimView *view = (SimView *)clientData;
 360   char buf[256];
 361
 362   if (view->tool_mode != 0) {
 363     int dx = 0, dy = 0;
 364     int result, root_x, root_y, x, y;
 365     unsigned int key_buttons;
 366     Window root, child;
 367
 368     XQueryPointer(Tk_Display(view->tkwin), Tk_WindowId(view->tkwin),
 369                   &root, &child, &root_x, &root_y, &x, &y, &key_buttons);
 370
 371     if (x < AutoScrollEdge)
 372       dx = -AutoScrollStep;
 373     else if (x > (view->w_width - AutoScrollEdge))
 374       dx = AutoScrollStep;
 375     if (y < AutoScrollEdge)
 376       dy = -AutoScrollStep;
 377     else if (y > (view->w_height - AutoScrollEdge))
 378       dy = AutoScrollStep;
 379
 380     if (dx || dy) {
 381       int px = view->pan_x, py = view->pan_y;
 382
 383       if (view->tool_mode == -1) {
 384         dx = -dx; dy = -dy;
 385       }
 386
 387       DoPanBy(view, dx, dy);
 388       view->tool_x += view->pan_x - px;
 389       view->tool_y += view->pan_y - py;
 390       view->auto_scroll_token =
 391         Tk_CreateTimerHandler(AutoScrollDelay, TileAutoScrollProc,
 392                               (ClientData) view);
 393
 394       sprintf(buf, "UIDidPan %s %d %d", Tk_PathName(view->tkwin), x, y);
 395       Eval(buf);
 396     }
 397   }
 398 }
 399
 400
 401 static void
 402 TileViewEventProc(ClientData clientData, XEvent *eventPtr)
 403 {
 404   SimView *view = (SimView *) clientData;
 405
 406   if ((eventPtr->type == Expose) && (eventPtr->xexpose.count == 0)) {
 407     view->visible = 1;
 408     EventuallyRedrawView(view);
 409   } else if (eventPtr->type == MapNotify) {
 410     view->visible = 1;
 411   } else if (eventPtr->type == UnmapNotify) {
 412     view->visible = 0;
 413   } else if (eventPtr->type == VisibilityNotify) {
 414     if (eventPtr->xvisibility.state == VisibilityFullyObscured)
 415       view->visible = 0;
 416     else
 417       view->visible = 1;
 418   } else if (eventPtr->type == ConfigureNotify) {
 419     if (view->class == Editor_Class)
 420       DoResizeView(view,
 421                    eventPtr->xconfigure.width,
 422                    eventPtr->xconfigure.height);
 423     EventuallyRedrawView(view);
 424   } else if (eventPtr->type == DestroyNotify) {
 425     Tcl_DeleteCommand(view->interp, Tk_PathName(view->tkwin));
 426     view->tkwin = NULL;
 427     CancelRedrawView(view);
 428     Tk_EventuallyFree((ClientData) view, DestroyTileView);
 429   } else if ((view->class == Editor_Class) &&
 430              (view->show_me != 0) &&
 431              ((eventPtr->type == EnterNotify) ||
 432               (eventPtr->type == LeaveNotify) ||
 433               (eventPtr->type == MotionNotify))) {
 434     int last_x = view->tool_x, last_y = view->tool_y,
 435         last_showing = view->tool_showing;
 436     int x, y, showing, autoscroll;
 437
 438     if (eventPtr->type == EnterNotify) {
 439       showing = 1;
 440       x = eventPtr->xcrossing.x; y = eventPtr->xcrossing.y;
 441     } else if (eventPtr->type == LeaveNotify) {
 442       showing = 0;
 443       x = eventPtr->xcrossing.x; y = eventPtr->xcrossing.y;
 444     } else {
 445       showing = 1;
 446       x = eventPtr->xmotion.x; y = eventPtr->xmotion.y;
 447     }
 448
 449     if (view->tool_mode != 0) {
 450
 451       if ((x < AutoScrollEdge) ||
 452           (x > (view->w_width - AutoScrollEdge)) ||
 453           (y < AutoScrollEdge) ||
 454           (y > (view->w_height - AutoScrollEdge))) {
 455         if (!view->auto_scroll_token) {
 456           view->auto_scroll_token =
 457             Tk_CreateTimerHandler(AutoScrollDelay, TileAutoScrollProc,
 458                                   (ClientData) view);
 459         }
 460       } else {
 461         if (view->auto_scroll_token) {
 462           Tk_DeleteTimerHandler(view->auto_scroll_token);
 463           view->auto_scroll_token = 0;
 464         }
 465       }
 466     }
 467
 468     ViewToPixelCoords(view, x, y, &x, &y);
 469     view->tool_showing = showing;
 470
 471     if (view->tool_mode != -1) {
 472       view->tool_x = x; view->tool_y = y;
 473     }
 474
 475 /* XXX: redraw all views showing cursor */
 476 /* XXX: also, make sure switching tools works w/out moving */
 477     if (((view->tool_showing != last_showing) ||
 478         ((view->tool_x >> 4) != (last_x >> 4)) ||
 479         ((view->tool_y >> 4)  != (last_y >> 4)))) {
 480 #if 1
 481       EventuallyRedrawView(view);
 482 #else
 483       RedrawEditors();
 484 #endif
 485     }
 486   }
 487 }
 488
 489
 490 static void
 491 DestroyTileView(ClientData clientData)
 492 {
 493   SimView *view = (SimView *) clientData;
 494
 495   DestroyView(view);
 496 }
 497
 498
 499 void
 500 StdinProc(ClientData clientData, int mask)
 501 {
 502   char line[200];
 503   static int gotPartial = 0;
 504   char *cmd;
 505   int result;
 506
 507   if (mask & TK_READABLE) {
 508     if (fgets(line, 200, stdin) == NULL) {
 509       if (!gotPartial) {
 510         if (sim_tty) {
 511           sim_exit(0); // Just sets tkMustExit and ExitReturn
 512           return;
 513         } else {
 514           Tk_DeleteFileHandler(0);
 515         }
 516         return;
 517       } else {
 518         line[0] = 0;
 519       }
 520     }
 521     cmd = Tcl_AssembleCmd(buffer, line);
 522     if (cmd == NULL) {
 523       gotPartial = 1;
 524       return;
 525     }
 526     gotPartial = 0;
 527     result = Tcl_RecordAndEval(tk_mainInterp, cmd, 0);
 528     if (*tk_mainInterp->result != 0) {
 529       if ((result != TCL_OK) || sim_tty) {
 530         printf("%s\n", tk_mainInterp->result);
 531       }
 532     }
 533     if (sim_tty) {
 534       printf("sim:\n");
 535       fflush(stdout);
 536     }
 537   }
 538 }
 539
 540
 541 static void
 542 StructureProc(ClientData clientData, XEvent *eventPtr)
 543 {
 544   if (eventPtr->type == DestroyNotify) {
 545     MainWindow = NULL;
 546   }
 547 }
 548
 549
 550 static void
 551 DelayedMap(ClientData clientData)
 552 {
 553   while (Tk_DoOneEvent(TK_IDLE_EVENTS) != 0) {
 554     /* Empty loop body. */
 555   }
 556   if (MainWindow == NULL) {
 557     return;
 558   }
 559   Tk_MapWindow(MainWindow);
 560 }
 561
 562
 563 DidStopPan(SimView *view)
 564 {
 565   char buf[256];
 566   sprintf(buf, "UIDidStopPan %s", Tk_PathName(view->tkwin));
 567
 568   Eval(buf);
 569 }
 570
 571
 572 static void
 573 MicropolisTimerProc(ClientData clientData)
 574 {
 575   sim_timer_token = NULL;
 576   sim_timer_set = 0;
 577
 578   if (NeedRest > 0) {
 579     NeedRest--;
 580   }
 581
 582   if (SimSpeed) {
 583     sim_loop(1);
 584     StartMicropolisTimer();
 585   } else {
 586     StopMicropolisTimer();
 587   }
 588 }
 589
 590
 591 void
 592 ReallyStartMicropolisTimer(ClientData clientData)
 593 {
 594   int delay = sim_delay;
 595   XDisplay *xd = XDisplays;
 596
 597   StopMicropolisTimer();
 598
 599   while (xd != NULL) {
 600     if ((NeedRest > 0) ||
 601         ShakeNow ||
 602         (xd->tkDisplay->buttonWinPtr != NULL) ||
 603         (xd->tkDisplay->grabWinPtr != NULL)) {
 604       if (ShakeNow || NeedRest) {
 605         if (delay < 50000) delay = 50000;
 606       } else {
 607       }
 608       break;
 609     }
 610     xd = xd->next;
 611   }
 612
 613   sim_timer_token =
 614     Tk_CreateMicroTimerHandler(
 615       0,
 616       delay,
 617       MicropolisTimerProc,
 618       (ClientData)0);
 619
 620   sim_timer_set = 1;
 621 }
 622
 623
 624 StartMicropolisTimer()
 625 {
 626   if (sim_timer_idle == 0) {
 627     sim_timer_idle = 1;
 628     Tk_DoWhenIdle(
 629       ReallyStartMicropolisTimer,
 630       NULL);
 631   }
 632 }
 633
 634
 635 StopMicropolisTimer()
 636 {
 637   if (sim_timer_idle != 0) {
 638     sim_timer_idle = 0;
 639     Tk_CancelIdleCall(
 640       ReallyStartMicropolisTimer,
 641       NULL);
 642   }
 643
 644   if (sim_timer_set) {
 645     if (sim_timer_token != 0) {
 646       Tk_DeleteTimerHandler(sim_timer_token);
 647       sim_timer_token = 0;
 648     }
 649     sim_timer_set = 0;
 650   }
 651 }
 652
 653
 654 FixMicropolisTimer()
 655 {
 656   if (sim_timer_set) {
 657     StartMicropolisTimer(NULL);
 658   }
 659 }
 660
 661
 662 static void
 663 DelayedUpdate(ClientData clientData)
 664 {
 665 //fprintf(stderr, "DelayedUpdate\n");
 666   UpdateDelayed = 0;
 667   sim_skip = 0;
 668   sim_update();
 669 }
 670
 671
 672 Kick()
 673 {
 674   if (!UpdateDelayed) {
 675     UpdateDelayed = 1;
 676     Tk_DoWhenIdle(DelayedUpdate, (ClientData) NULL);
 677   }
 678 }
 679
 680
 681 void
 682 StopEarthquake()
 683 {
 684   ShakeNow = 0;
 685   if (earthquake_timer_set) {
 686     Tk_DeleteTimerHandler(earthquake_timer_token);
 687   }
 688   earthquake_timer_set = 0;
 689 }
 690
 691
 692 DoEarthQuake(void)
 693 {
 694   MakeSound("city", "Explosion-Low");
 695   Eval("UIEarthQuake");
 696   ShakeNow++;
 697   if (earthquake_timer_set) {
 698     Tk_DeleteTimerHandler(earthquake_timer_token);
 699   }
 700   Tk_CreateTimerHandler(earthquake_delay, (void (*)())StopEarthquake, (ClientData) 0);
 701   earthquake_timer_set = 1;
 702 }
 703
 704
 705 StopToolkit()
 706 {
 707   if (tk_mainInterp != NULL) {
 708     Eval("catch {DoStopMicropolis}");
 709   }
 710 }
 711
 712
 713 Eval(char *buf)
 714 {
 715   int result = Tcl_Eval(tk_mainInterp, buf, 0, (char **) NULL);
 716   if (result != TCL_OK) {
 717     char *errorinfo = Tcl_GetVar(tk_mainInterp, "errorInfo",
 718                                  TCL_GLOBAL_ONLY);
 719     if (errorinfo == NULL) errorinfo = "<no backtrace>";
 720     fprintf(stderr, "Micropolis: error in TCL code: %s\n%s\n",
 721             tk_mainInterp->result, errorinfo);
 722   }
 723   return (result);
 724 }
 725
 726
 727 tk_main()
 728 {
 729   char *p, *msg;
 730   char buf[20];
 731   char initCmd[256];
 732   Tk_3DBorder border;
 733
 734   tk_mainInterp = Tcl_CreateExtendedInterp();
 735
 736 #if 0
 737   /* XXX: Figure out Extended TCL */
 738   tclAppName     = "Wish";
 739   tclAppLongname = "Wish - Tk Shell";
 740   tclAppVersion  = TK_VERSION;
 741   Tcl_ShellEnvInit (interp, TCLSH_ABORT_STARTUP_ERR,
 742                     name,
 743                     0, NULL,           /* argv var already set  */
 744                     fileName == NULL,  /* interactive?          */
 745                     NULL);             /* Standard default file */
 746 #endif
 747
 748   MainWindow = Tk_CreateMainWindow(tk_mainInterp, FirstDisplay, "Micropolis");
 749   if (MainWindow == NULL) {
 750     fprintf(stderr, "%s\n", tk_mainInterp->result);
 751     sim_really_exit(1); // Just sets tkMustExit and ExitReturn
 752   }
 753   Tk_SetClass(MainWindow, "Tk");
 754   Tk_CreateEventHandler(MainWindow, StructureNotifyMask,
 755                         StructureProc, (ClientData) NULL);
 756 /*  Tk_DoWhenIdle(DelayedMap, (ClientData) NULL); */
 757
 758   Tk_GeometryRequest(MainWindow, 256, 256);
 759   border = Tk_Get3DBorder(tk_mainInterp, MainWindow, None, "gray75");
 760   if (border == NULL) {
 761     Tcl_SetResult(tk_mainInterp, (char *) NULL, TCL_STATIC);
 762     Tk_SetWindowBackground(MainWindow,
 763                            WhitePixelOfScreen(Tk_Screen(MainWindow)));
 764   } else {
 765     Tk_SetBackgroundFromBorder(MainWindow, border);
 766   }
 767   XSetForeground(Tk_Display(MainWindow),
 768                  DefaultGCOfScreen(Tk_Screen(MainWindow)),
 769                  BlackPixelOfScreen(Tk_Screen(MainWindow)));
 770
 771   sim_command_init();
 772   map_command_init();
 773   editor_command_init();
 774   graph_command_init();
 775   date_command_init();
 776   sprite_command_init();
 777
 778 #ifdef CAM
 779   cam_command_init();
 780 #endif
 781
 782   Tcl_CreateCommand(tk_mainInterp, "piemenu", Tk_PieMenuCmd,
 783                     (ClientData)MainWindow, (void (*)()) NULL);
 784   Tcl_CreateCommand(tk_mainInterp, "interval", Tk_IntervalCmd,
 785                     (ClientData)MainWindow, (void (*)()) NULL);
 786
 787   sim = MakeNewSim();
 788
 789   sprintf(initCmd, "source %s/micropolis.tcl", ResourceDir);
 790   filename2UNIX(initCmd);
 791   if (Eval(initCmd)) {
 792     sim_exit(1); // Just sets tkMustExit and ExitReturn
 793     goto bail;
 794   }
 795
 796   sim_init();
 797
 798   buffer = Tcl_CreateCmdBuf();
 799
 800   if (sim_tty) {
 801     Tk_CreateFileHandler(0, TK_READABLE, StdinProc, (ClientData) 0);
 802   }
 803
 804   { char buf[1024];
 805
 806     sprintf(buf, "UIStartMicropolis {%s} {%s} {%s}",
 807             HomeDir, ResourceDir, HostName);
 808     filename2UNIX(buf);
 809     if (Eval(buf) != TCL_OK) {
 810       sim_exit(1); // Just sets tkMustExit and ExitReturn
 811       goto bail;
 812     }
 813   }
 814
 815   if (sim_tty) {
 816     printf("sim:\n");
 817   }
 818   fflush(stdout);
 819
 820   Tk_MainLoop();
 821
 822   sim_really_exit(0);
 823
 824  bail:
 825
 826   if (buffer != NULL) {
 827     Tcl_DeleteCmdBuf(buffer);
 828   }
 829
 830   Tcl_DeleteInterp(tk_mainInterp);
 831 }
 832