added playing score tape from score info page
[rocksndiamonds.git] / src / tape.c
1 // ============================================================================
2 // Rocks'n'Diamonds - McDuffin Strikes Back!
3 // ----------------------------------------------------------------------------
4 // (c) 1995-2014 by Artsoft Entertainment
5 //                  Holger Schemel
6 //                  info@artsoft.org
7 //                  https://www.artsoft.org/
8 // ----------------------------------------------------------------------------
9 // tape.c
10 // ============================================================================
11
12 #include "libgame/libgame.h"
13
14 #include "tape.h"
15 #include "init.h"
16 #include "game.h"
17 #include "tools.h"
18 #include "files.h"
19 #include "network.h"
20 #include "anim.h"
21 #include "api.h"
22
23
24 #define DEBUG_TAPE_WHEN_PLAYING                 FALSE
25
26 // tape button identifiers
27 #define TAPE_CTRL_ID_EJECT                      0
28 #define TAPE_CTRL_ID_EXTRA                      1
29 #define TAPE_CTRL_ID_STOP                       2
30 #define TAPE_CTRL_ID_PAUSE                      3
31 #define TAPE_CTRL_ID_RECORD                     4
32 #define TAPE_CTRL_ID_PLAY                       5
33 #define TAPE_CTRL_ID_INSERT_SOLUTION            6
34 #define TAPE_CTRL_ID_PLAY_SOLUTION              7
35
36 #define NUM_TAPE_BUTTONS                        8
37
38 // values for tape handling
39 #define TAPE_PAUSE_SECONDS_BEFORE_DEATH         5
40 #define TAPE_MIN_SECONDS_FOR_UNDO_BUFFER        20
41
42 // forward declaration for internal use
43 static void HandleTapeButtons(struct GadgetInfo *);
44 static void TapeStopWarpForward(void);
45 static float GetTapeLengthSecondsFloat(void);
46 static void CopyTapeToUndoBuffer(void);
47
48 static struct GadgetInfo *tape_gadget[NUM_TAPE_BUTTONS];
49 static struct TapeInfo tape_undo_buffer;
50
51
52 // ============================================================================
53 // video tape definitions
54 // ============================================================================
55
56 #define VIDEO_INFO_OFF                  (VIDEO_STATE_DATE_OFF   |       \
57                                          VIDEO_STATE_TIME_OFF   |       \
58                                          VIDEO_STATE_FRAME_OFF)
59 #define VIDEO_STATE_OFF                 (VIDEO_STATE_PLAY_OFF   |       \
60                                          VIDEO_STATE_REC_OFF    |       \
61                                          VIDEO_STATE_PAUSE_OFF  |       \
62                                          VIDEO_STATE_FFWD_OFF   |       \
63                                          VIDEO_STATE_WARP_OFF   |       \
64                                          VIDEO_STATE_WARP2_OFF  |       \
65                                          VIDEO_STATE_PBEND_OFF  |       \
66                                          VIDEO_STATE_1STEP_OFF)
67 #define VIDEO_PRESS_OFF                 (VIDEO_PRESS_PLAY_OFF   |       \
68                                          VIDEO_PRESS_REC_OFF    |       \
69                                          VIDEO_PRESS_PAUSE_OFF  |       \
70                                          VIDEO_PRESS_STOP_OFF   |       \
71                                          VIDEO_PRESS_EJECT_OFF)
72 #define VIDEO_ALL_OFF                   (VIDEO_INFO_OFF         |       \
73                                          VIDEO_STATE_OFF        |       \
74                                          VIDEO_PRESS_OFF)
75
76 #define VIDEO_INFO_ON                   (VIDEO_STATE_DATE_ON    |       \
77                                          VIDEO_STATE_TIME_ON    |       \
78                                          VIDEO_STATE_FRAME_ON)
79 #define VIDEO_STATE_ON                  (VIDEO_STATE_PLAY_ON    |       \
80                                          VIDEO_STATE_REC_ON     |       \
81                                          VIDEO_STATE_PAUSE_ON   |       \
82                                          VIDEO_STATE_FFWD_ON    |       \
83                                          VIDEO_STATE_WARP_ON    |       \
84                                          VIDEO_STATE_WARP2_ON   |       \
85                                          VIDEO_STATE_PBEND_ON   |       \
86                                          VIDEO_STATE_1STEP_ON)
87 #define VIDEO_PRESS_ON                  (VIDEO_PRESS_PLAY_ON    |       \
88                                          VIDEO_PRESS_REC_ON     |       \
89                                          VIDEO_PRESS_PAUSE_ON   |       \
90                                          VIDEO_PRESS_STOP_ON    |       \
91                                          VIDEO_PRESS_EJECT_ON)
92 #define VIDEO_ALL_ON                    (VIDEO_INFO_ON          |       \
93                                          VIDEO_STATE_ON         |       \
94                                          VIDEO_PRESS_ON)
95
96 #define VIDEO_INFO                      (VIDEO_INFO_ON | VIDEO_INFO_OFF)
97 #define VIDEO_STATE                     (VIDEO_STATE_ON | VIDEO_STATE_OFF)
98 #define VIDEO_PRESS                     (VIDEO_PRESS_ON | VIDEO_PRESS_OFF)
99 #define VIDEO_ALL                       (VIDEO_ALL_ON | VIDEO_ALL_OFF)
100
101 #define NUM_TAPE_FUNCTIONS              11
102 #define NUM_TAPE_FUNCTION_PARTS         2
103 #define NUM_TAPE_FUNCTION_STATES        2
104
105
106 // ============================================================================
107 // video display functions
108 // ============================================================================
109
110 static void DrawVideoDisplay_Graphics(unsigned int state, unsigned int value)
111 {
112   int i, j, k;
113
114   static struct
115   {
116     int graphic;
117     struct XY *pos;
118   }
119   video_pos[NUM_TAPE_FUNCTIONS][NUM_TAPE_FUNCTION_PARTS] =
120   {
121     {
122       { IMG_GFX_TAPE_LABEL_PLAY,                &tape.label.play        },
123       { IMG_GFX_TAPE_SYMBOL_PLAY,               &tape.symbol.play       },
124     },
125     {
126       { IMG_GFX_TAPE_LABEL_RECORD,              &tape.label.record      },
127       { IMG_GFX_TAPE_SYMBOL_RECORD,             &tape.symbol.record     },
128     },
129     {
130       { IMG_GFX_TAPE_LABEL_PAUSE,               &tape.label.pause       },
131       { IMG_GFX_TAPE_SYMBOL_PAUSE,              &tape.symbol.pause      },
132     },
133     {
134       { IMG_GFX_TAPE_LABEL_DATE,                &tape.label.date        },
135       { -1,                                     NULL                    },
136     },
137     {
138       { IMG_GFX_TAPE_LABEL_TIME,                &tape.label.time        },
139       { -1,                                     NULL                    },
140     },
141     {
142       // (no label for displaying optional frame)
143       { -1,                                     NULL                    },
144       { -1,                                     NULL                    },
145     },
146     {
147       { IMG_GFX_TAPE_LABEL_FAST_FORWARD,        &tape.label.fast_forward  },
148       { IMG_GFX_TAPE_SYMBOL_FAST_FORWARD,       &tape.symbol.fast_forward },
149     },
150     {
151       { IMG_GFX_TAPE_LABEL_WARP_FORWARD,        &tape.label.warp_forward  },
152       { IMG_GFX_TAPE_SYMBOL_WARP_FORWARD,       &tape.symbol.warp_forward },
153     },
154     {
155       { IMG_GFX_TAPE_LABEL_WARP_FORWARD_BLIND,  &tape.label.warp_forward_blind},
156       { IMG_GFX_TAPE_SYMBOL_WARP_FORWARD_BLIND, &tape.symbol.warp_forward_blind},
157     },
158     {
159       { IMG_GFX_TAPE_LABEL_PAUSE_BEFORE_END,    &tape.label.pause_before_end  },
160       { IMG_GFX_TAPE_SYMBOL_PAUSE_BEFORE_END,   &tape.symbol.pause_before_end },
161     },
162     {
163       { IMG_GFX_TAPE_LABEL_SINGLE_STEP,         &tape.label.single_step  },
164       { IMG_GFX_TAPE_SYMBOL_SINGLE_STEP,        &tape.symbol.single_step },
165     },
166   };
167
168   for (k = 0; k < NUM_TAPE_FUNCTION_STATES; k++)        // on or off states
169   {
170     for (i = 0; i < NUM_TAPE_FUNCTIONS; i++)            // record, play, ...
171     {
172       for (j = 0; j < NUM_TAPE_FUNCTION_PARTS; j++)     // label or symbol
173       {
174         int graphic = video_pos[i][j].graphic;
175         struct XY *pos = video_pos[i][j].pos;
176
177         if (graphic == -1 ||
178             pos->x == -1 ||
179             pos->y == -1)
180           continue;
181
182         if (state & (1 << (i * 2 + k)))
183         {
184           struct GraphicInfo *gfx_bg = &graphic_info[IMG_BACKGROUND_TAPE];
185           struct GraphicInfo *gfx = &graphic_info[graphic];
186           Bitmap *gd_bitmap;
187           int gd_x, gd_y;
188           int skip_value =
189             (j == 0 ? VIDEO_DISPLAY_SYMBOL_ONLY : VIDEO_DISPLAY_LABEL_ONLY);
190
191           if (value == skip_value)
192             continue;
193
194           if (k == 1)           // on
195           {
196             gd_bitmap = gfx->bitmap;
197             gd_x = gfx->src_x;
198             gd_y = gfx->src_y;
199           }
200           else                  // off
201           {
202             gd_bitmap = gfx_bg->bitmap;
203             gd_x = gfx_bg->src_x + pos->x;
204             gd_y = gfx_bg->src_y + pos->y;
205           }
206
207           // some tape graphics may be undefined -- only draw if defined
208           if (gd_bitmap != NULL)
209             BlitBitmap(gd_bitmap, drawto, gd_x, gd_y, gfx->width, gfx->height,
210                        VX + pos->x, VY + pos->y);
211
212           redraw_mask |= REDRAW_DOOR_2;
213         }
214       }
215     }
216   }
217 }
218
219
220 #define DATETIME_NONE                   (0)
221
222 #define DATETIME_DATE_YYYY              (1 << 0)
223 #define DATETIME_DATE_YY                (1 << 1)
224 #define DATETIME_DATE_MON               (1 << 2)
225 #define DATETIME_DATE_MM                (1 << 3)
226 #define DATETIME_DATE_DD                (1 << 4)
227
228 #define DATETIME_TIME_HH                (1 << 5)
229 #define DATETIME_TIME_MIN               (1 << 6)
230 #define DATETIME_TIME_MM                (1 << 7)
231 #define DATETIME_TIME_SS                (1 << 8)
232
233 #define DATETIME_FRAME                  (1 << 9)
234
235 #define DATETIME_XOFFSET_1              (1 << 10)
236 #define DATETIME_XOFFSET_2              (1 << 11)
237
238 #define DATETIME_DATE                   (DATETIME_DATE_YYYY     |       \
239                                          DATETIME_DATE_YY       |       \
240                                          DATETIME_DATE_MON      |       \
241                                          DATETIME_DATE_MM       |       \
242                                          DATETIME_DATE_DD)
243
244 #define DATETIME_TIME                   (DATETIME_TIME_HH       |       \
245                                          DATETIME_TIME_MIN      |       \
246                                          DATETIME_TIME_MM       |       \
247                                          DATETIME_TIME_SS)
248
249 #define MAX_DATETIME_STRING_SIZE        32
250
251 static void DrawVideoDisplay_DateTime(unsigned int state, unsigned int value)
252 {
253   int i;
254
255   static char *month_shortnames[] =
256   {
257     "JAN",
258     "FEB",
259     "MAR",
260     "APR",
261     "MAY",
262     "JUN",
263     "JUL",
264     "AUG",
265     "SEP",
266     "OCT",
267     "NOV",
268     "DEC"
269   };
270
271   static struct
272   {
273     struct TextPosInfo *pos;
274     int type;
275   }
276   datetime_info[] =
277   {
278     { &tape.text.date,          DATETIME_DATE_DD                        },
279     { &tape.text.date,          DATETIME_DATE_MON | DATETIME_XOFFSET_1  },
280     { &tape.text.date,          DATETIME_DATE_YY  | DATETIME_XOFFSET_2  },
281     { &tape.text.date_yyyy,     DATETIME_DATE_YYYY                      },
282     { &tape.text.date_yy,       DATETIME_DATE_YY                        },
283     { &tape.text.date_mon,      DATETIME_DATE_MON                       },
284     { &tape.text.date_mm,       DATETIME_DATE_MM                        },
285     { &tape.text.date_dd,       DATETIME_DATE_DD                        },
286
287     { &tape.text.time,          DATETIME_TIME_MIN                       },
288     { &tape.text.time,          DATETIME_TIME_SS  | DATETIME_XOFFSET_1  },
289     { &tape.text.time_hh,       DATETIME_TIME_HH                        },
290     { &tape.text.time_mm,       DATETIME_TIME_MM                        },
291     { &tape.text.time_ss,       DATETIME_TIME_SS                        },
292
293     { &tape.text.frame,         DATETIME_FRAME                          },
294
295     { NULL,                     DATETIME_NONE                           },
296   };
297
298   for (i = 0; datetime_info[i].pos != NULL; i++)
299   {
300     struct TextPosInfo *pos = datetime_info[i].pos;
301     int type = datetime_info[i].type;
302     int xpos, ypos;
303
304     if (pos->x == -1 &&
305         pos->y == -1)
306       continue;
307
308     xpos = VX + pos->x + (type & DATETIME_XOFFSET_1 ? pos->xoffset  :
309                           type & DATETIME_XOFFSET_2 ? pos->xoffset2 : 0);
310     ypos = VY + pos->y;
311
312     if ((type & DATETIME_DATE) && (state & VIDEO_STATE_DATE_ON))
313     {
314       char s[MAX_DATETIME_STRING_SIZE];
315       int year2 = value / 10000;
316       int year4 = (year2 < 70 ? 2000 + year2 : 1900 + year2);
317       int month_index_raw = (value / 100) % 100;
318       int month_index = month_index_raw % 12;   // prevent invalid index
319       int month = month_index + 1;
320       int day = value % 100;
321
322       strcpy(s, (type & DATETIME_DATE_YYYY ? int2str(year4, 4) :
323                  type & DATETIME_DATE_YY   ? int2str(year2, 2) :
324                  type & DATETIME_DATE_MON  ? month_shortnames[month_index] :
325                  type & DATETIME_DATE_MM   ? int2str(month, 2) :
326                  type & DATETIME_DATE_DD   ? int2str(day, 2) : ""));
327
328       DrawText(xpos, ypos, s, pos->font);
329     }
330     else if ((type & DATETIME_TIME) && (state & VIDEO_STATE_TIME_ON))
331     {
332       char s[MAX_DATETIME_STRING_SIZE];
333       int hh = (value / 3600) % 100;
334       int min = value / 60;
335       int mm = (value / 60) % 60;
336       int ss = value % 60;
337
338       strcpy(s, (type & DATETIME_TIME_HH  ? int2str(hh, 2) :
339                  type & DATETIME_TIME_MIN ? int2str(min, 2) :
340                  type & DATETIME_TIME_MM  ? int2str(mm, 2) :
341                  type & DATETIME_TIME_SS  ? int2str(ss, 2) : ""));
342
343       DrawText(xpos, ypos, s, pos->font);
344     }
345     else if ((type & DATETIME_FRAME) && (state & VIDEO_STATE_FRAME_ON))
346     {
347       DrawText(xpos, ypos, int2str(value, pos->size), pos->font);
348     }
349   }
350 }
351
352 void DrawVideoDisplay(unsigned int state, unsigned int value)
353 {
354   DrawVideoDisplay_Graphics(state, value);
355   DrawVideoDisplay_DateTime(state, value);
356 }
357
358 static void DrawVideoDisplayLabel(unsigned int state)
359 {
360   DrawVideoDisplay(state, VIDEO_DISPLAY_LABEL_ONLY);
361 }
362
363 static void DrawVideoDisplaySymbol(unsigned int state)
364 {
365   DrawVideoDisplay(state, VIDEO_DISPLAY_SYMBOL_ONLY);
366 }
367
368 static void DrawVideoDisplayCurrentState(void)
369 {
370   int state = 0;
371
372   DrawVideoDisplay(VIDEO_STATE_OFF, 0);
373
374   if (tape.pausing)
375     state |= VIDEO_STATE_PAUSE_ON;
376
377   if (tape.recording)
378   {
379     state |= VIDEO_STATE_REC_ON;
380
381     if (tape.single_step)
382       state |= VIDEO_STATE_1STEP_ON;
383   }
384   else if (tape.playing)
385   {
386     state |= VIDEO_STATE_PLAY_ON;
387
388     if (!tape.pausing)
389     {
390       if (tape.deactivate_display)
391         state |= VIDEO_STATE_WARP2_ON;
392       else if (tape.warp_forward)
393         state |= VIDEO_STATE_WARP_ON;
394       else if (tape.fast_forward)
395         state |= VIDEO_STATE_FFWD_ON;
396
397       if (tape.pause_before_end)
398         state |= VIDEO_STATE_PBEND_ON;
399     }
400   }
401
402   // draw labels and symbols separately to prevent labels overlapping symbols
403   DrawVideoDisplayLabel(state);
404   DrawVideoDisplaySymbol(state);
405 }
406
407 void DrawCompleteVideoDisplay(void)
408 {
409   struct GraphicInfo *g_tape = &graphic_info[IMG_BACKGROUND_TAPE];
410
411   // draw tape background
412   BlitBitmap(g_tape->bitmap, drawto, g_tape->src_x, g_tape->src_y,
413              gfx.vxsize, gfx.vysize, gfx.vx, gfx.vy);
414
415   // draw tape buttons (forced)
416   RedrawOrRemapTapeButtons();
417
418   DrawVideoDisplay(VIDEO_ALL_OFF, 0);
419
420   if (tape.recording)
421   {
422     DrawVideoDisplay(VIDEO_STATE_REC_ON, 0);
423     DrawVideoDisplay(VIDEO_STATE_DATE_ON, tape.date);
424     DrawVideoDisplay(VIDEO_STATE_TIME_ON, tape.length_seconds);
425     DrawVideoDisplay(VIDEO_STATE_FRAME_ON, tape.length_frames);
426
427     if (tape.pausing)
428       DrawVideoDisplay(VIDEO_STATE_PAUSE_ON, 0);
429   }
430   else if (tape.playing)
431   {
432     DrawVideoDisplay(VIDEO_STATE_PLAY_ON, 0);
433     DrawVideoDisplay(VIDEO_STATE_DATE_ON, tape.date);
434     DrawVideoDisplay(VIDEO_STATE_TIME_ON, 0);
435     DrawVideoDisplay(VIDEO_STATE_FRAME_ON, 0);
436
437     if (tape.pausing)
438       DrawVideoDisplay(VIDEO_STATE_PAUSE_ON, 0);
439   }
440   else if (tape.date && tape.length)
441   {
442     DrawVideoDisplay(VIDEO_STATE_DATE_ON, tape.date);
443     DrawVideoDisplay(VIDEO_STATE_TIME_ON, tape.length_seconds);
444     DrawVideoDisplay(VIDEO_STATE_FRAME_ON, tape.length_frames);
445   }
446
447   BlitBitmap(drawto, bitmap_db_door_2, gfx.vx, gfx.vy, gfx.vxsize, gfx.vysize,
448              0, 0);
449 }
450
451 void TapeDeactivateDisplayOn(void)
452 {
453   SetDrawDeactivationMask(REDRAW_FIELD);
454   audio.sound_deactivated = TRUE;
455 }
456
457 void TapeDeactivateDisplayOff(boolean redraw_display)
458 {
459   SetDrawDeactivationMask(REDRAW_NONE);
460   audio.sound_deactivated = FALSE;
461
462   if (redraw_display)
463   {
464     RedrawPlayfield();
465
466     UpdateGameDoorValues();
467     DrawGameDoorValues();
468   }
469 }
470
471
472 // ============================================================================
473 // tape logging functions
474 // ============================================================================
475
476 struct AutoPlayInfo
477 {
478   LevelDirTree *leveldir;
479   boolean all_levelsets;
480   int last_level_nr;
481   int level_nr;
482   int num_levels_played;
483   int num_levels_solved;
484   int num_tapes_patched;
485   int num_tape_missing;
486   boolean level_failed[MAX_TAPES_PER_SET];
487   char *tape_filename;
488 };
489
490 static char tape_patch_info[MAX_OUTPUT_LINESIZE];
491
492 static void PrintTapeReplayHeader(struct AutoPlayInfo *autoplay)
493 {
494   PrintLine("=", 79);
495
496   if (global.autoplay_mode == AUTOPLAY_MODE_FIX)
497     Print("Automatically fixing level tapes\n");
498   else if (global.autoplay_mode == AUTOPLAY_MODE_UPLOAD)
499     Print("Automatically uploading level tapes\n");
500   else
501     Print("Automatically playing level tapes\n");
502
503   PrintLine("-", 79);
504   Print("Level series identifier: '%s'\n", autoplay->leveldir->identifier);
505   Print("Level series name:       '%s'\n", autoplay->leveldir->name);
506   Print("Level series author:     '%s'\n", autoplay->leveldir->author);
507   Print("Number of levels:        %d\n",   autoplay->leveldir->levels);
508   PrintLine("=", 79);
509   Print("\n");
510
511   DrawInitTextItem(autoplay->leveldir->name);
512 }
513
514 static void PrintTapeReplayProgress(boolean replay_finished)
515 {
516   static unsigned int counter_last = -1;
517   unsigned int counter = Counter();
518   unsigned int counter_seconds  = counter / 1000;
519
520   if (!replay_finished)
521   {
522     unsigned int counter_delay = 50;
523
524     if (counter > counter_last + counter_delay)
525     {
526       PrintNoLog("\r");
527       PrintNoLog("Tape %03d %s[%02d:%02d]: [%02d:%02d] - playing tape ... ",
528                  level_nr,  tape_patch_info,
529                  tape.length_seconds / 60, tape.length_seconds % 60,
530                  TapeTime / 60, TapeTime % 60);
531
532       counter_last = counter;
533     }
534   }
535   else
536   {
537     float tape_length_seconds = GetTapeLengthSecondsFloat();
538
539     PrintNoLog("\r");
540     Print("Tape %03d %s[%02d:%02d]: (%02d:%02d.%03d / %.2f %%) - %s.\n",
541           level_nr, tape_patch_info,
542           tape.length_seconds / 60, tape.length_seconds % 60,
543           counter_seconds / 60, counter_seconds % 60, counter % 1000,
544           (float)counter / tape_length_seconds / 10,
545           tape.auto_play_level_fixed ? "solved and fixed" :
546           tape.auto_play_level_solved ? "solved" :
547           tape.auto_play_level_not_fixable ? "NOT SOLVED, NOT FIXED" :
548           "NOT SOLVED");
549
550     counter_last = -1;
551   }
552 }
553
554 static void PrintTapeReplaySummary(struct AutoPlayInfo *autoplay)
555 {
556   char *autoplay_status =
557     (autoplay->num_levels_played == autoplay->num_levels_solved &&
558      autoplay->num_levels_played > 0 ? " OK " : "WARN");
559   int autoplay_percent =
560     (autoplay->num_levels_played ?
561      autoplay->num_levels_solved * 100 / autoplay->num_levels_played : 0);
562   int i;
563
564   Print("\n");
565   PrintLine("=", 79);
566   Print("Number of levels played: %d\n", autoplay->num_levels_played);
567   Print("Number of levels solved: %d (%d%%)\n", autoplay->num_levels_solved,
568         (autoplay->num_levels_played ?
569          autoplay->num_levels_solved * 100 / autoplay->num_levels_played : 0));
570   if (global.autoplay_mode == AUTOPLAY_MODE_FIX)
571     Print("Number of tapes fixed: %d\n", autoplay->num_tapes_patched);
572   PrintLine("-", 79);
573   Print("Summary (for automatic parsing by scripts):\n");
574
575   if (autoplay->tape_filename)
576   {
577     Print("TAPEFILE [%s] '%s', %d, %d, %d",
578           autoplay_status,
579           autoplay->leveldir->identifier,
580           autoplay->last_level_nr,
581           game.score_final,
582           game.score_time_final);
583   }
584   else
585   {
586     Print("LEVELDIR [%s] '%s', SOLVED %d/%d (%d%%)",
587           autoplay_status,
588           autoplay->leveldir->identifier,
589           autoplay->num_levels_solved,
590           autoplay->num_levels_played,
591           autoplay_percent);
592
593     if (autoplay->num_levels_played != autoplay->num_levels_solved)
594     {
595       Print(", FAILED:");
596       for (i = 0; i < MAX_TAPES_PER_SET; i++)
597         if (autoplay->level_failed[i])
598           Print(" %03d", i);
599     }
600   }
601
602   Print("\n");
603   PrintLine("=", 79);
604 }
605
606 static FILE *tape_log_file;
607
608 static void OpenTapeLogfile(void)
609 {
610   if (!(tape_log_file = fopen(options.tape_log_filename, MODE_WRITE)))
611     Warn("cannot write tape logfile '%s'", options.tape_log_filename);
612 }
613
614 static void WriteTapeLogfile(byte action[MAX_TAPE_ACTIONS])
615 {
616   int i;
617
618   for (i = 0; i < MAX_TAPE_ACTIONS; i++)
619     putFile8Bit(tape_log_file, action[i]);
620 }
621
622 static void CloseTapeLogfile(void)
623 {
624   fclose(tape_log_file);
625 }
626
627
628 // ============================================================================
629 // tape control functions
630 // ============================================================================
631
632 void TapeSetDateFromEpochSeconds(time_t epoch_seconds)
633 {
634   struct tm *lt = localtime(&epoch_seconds);
635
636   tape.date = 10000 * (lt->tm_year % 100) + 100 * lt->tm_mon + lt->tm_mday;
637 }
638
639 void TapeSetDateFromNow(void)
640 {
641   TapeSetDateFromEpochSeconds(time(NULL));
642 }
643
644 void TapeErase(void)
645 {
646   int i;
647
648   CopyTapeToUndoBuffer();
649
650   tape.counter = 0;
651   tape.length = 0;
652   tape.length_frames = 0;
653   tape.length_seconds = 0;
654
655   tape.score_tape_basename[0] = '\0';
656
657   if (leveldir_current)
658   {
659     strncpy(tape.level_identifier, leveldir_current->identifier,
660             MAX_FILENAME_LEN);
661     tape.level_identifier[MAX_FILENAME_LEN] = '\0';
662   }
663
664   tape.level_nr = level_nr;
665   tape.pos[tape.counter].delay = 0;
666   tape.changed = TRUE;
667
668   tape.random_seed = InitRND(level.random_seed);
669
670   tape.file_version = FILE_VERSION_ACTUAL;
671   tape.game_version = GAME_VERSION_ACTUAL;
672   tape.engine_version = level.game_version;
673
674   tape.property_bits = TAPE_PROPERTY_NONE;
675
676   TapeSetDateFromNow();
677
678   for (i = 0; i < MAX_PLAYERS; i++)
679     tape.player_participates[i] = FALSE;
680
681   tape.centered_player_nr_next = -1;
682   tape.set_centered_player = FALSE;
683
684   // set flags for game actions to default values (may be overwritten later)
685   tape.use_key_actions = TRUE;
686   tape.use_mouse_actions = FALSE;
687 }
688
689 static void TapeRewind(void)
690 {
691   tape.counter = 0;
692   tape.delay_played = 0;
693   tape.pause_before_end = FALSE;
694   tape.recording = FALSE;
695   tape.playing = FALSE;
696   tape.fast_forward = FALSE;
697   tape.warp_forward = FALSE;
698   tape.deactivate_display = FALSE;
699   tape.auto_play = (global.autoplay_leveldir != NULL);
700   tape.auto_play_level_solved = FALSE;
701   tape.auto_play_level_fixed = FALSE;
702   tape.auto_play_level_not_fixable = FALSE;
703   tape.quick_resume = FALSE;
704   tape.single_step = FALSE;
705
706   tape.centered_player_nr_next = -1;
707   tape.set_centered_player = FALSE;
708
709   InitRND(tape.random_seed);
710 }
711
712 static void TapeSetRandomSeed(int random_seed)
713 {
714   tape.random_seed = InitRND(random_seed);
715 }
716
717 void TapeStartRecording(int random_seed)
718 {
719   if (!TAPE_IS_STOPPED(tape))
720     TapeStop();
721
722   TapeErase();
723   TapeRewind();
724   TapeSetRandomSeed(random_seed);
725
726   tape.recording = TRUE;
727
728   DrawVideoDisplay(VIDEO_STATE_REC_ON, 0);
729   DrawVideoDisplay(VIDEO_STATE_DATE_ON, tape.date);
730   DrawVideoDisplay(VIDEO_STATE_TIME_ON, 0);
731   DrawVideoDisplay(VIDEO_STATE_FRAME_ON, 0);
732
733   MapTapeWarpButton();
734
735   SetDrawDeactivationMask(REDRAW_NONE);
736   audio.sound_deactivated = FALSE;
737
738   // required here to update video display if tape door is closed
739   if (GetDoorState() & DOOR_CLOSE_2)
740     OpenDoor(GetDoorState() | DOOR_NO_DELAY | DOOR_FORCE_REDRAW);
741 }
742
743 static void TapeStartGameRecording(void)
744 {
745   StartGameActions(network.enabled, TRUE, level.random_seed);
746 }
747
748 static void TapeAppendRecording(void)
749 {
750   if (!tape.playing || !tape.pausing)
751     return;
752
753   // stop playing
754   tape.playing = FALSE;
755   tape.fast_forward = FALSE;
756   tape.warp_forward = FALSE;
757   tape.pause_before_end = FALSE;
758   tape.deactivate_display = FALSE;
759
760   // start recording
761   tape.recording = TRUE;
762   tape.changed = TRUE;
763
764   // set current delay (for last played move)
765   tape.pos[tape.counter].delay = tape.delay_played;
766
767   tape.property_bits |= TAPE_PROPERTY_REPLAYED;
768
769   // set current date
770   TapeSetDateFromNow();
771
772   DrawVideoDisplay(VIDEO_STATE_DATE_ON, tape.date);
773   DrawVideoDisplay(VIDEO_STATE_PLAY_OFF | VIDEO_STATE_REC_ON, 0);
774
775   UpdateAndDisplayGameControlValues();
776 }
777
778 void TapeHaltRecording(void)
779 {
780   tape.counter++;
781
782   // initialize delay for next tape entry (to be able to continue recording)
783   if (tape.counter < MAX_TAPE_LEN)
784     tape.pos[tape.counter].delay = 0;
785
786   tape.length = tape.counter;
787   tape.length_frames = GetTapeLengthFrames();
788   tape.length_seconds = GetTapeLengthSeconds();
789 }
790
791 void TapeStopRecording(void)
792 {
793   if (tape.recording)
794     TapeHaltRecording();
795
796   tape.recording = FALSE;
797   tape.pausing = FALSE;
798
799   DrawVideoDisplay(VIDEO_STATE_REC_OFF, 0);
800   MapTapeEjectButton();
801 }
802
803 boolean TapeAddAction(byte action[MAX_TAPE_ACTIONS])
804 {
805   int i;
806
807   if (tape.pos[tape.counter].delay > 0)         // already stored action
808   {
809     boolean changed_events = FALSE;
810
811     for (i = 0; i < MAX_TAPE_ACTIONS; i++)
812       if (tape.pos[tape.counter].action[i] != action[i])
813         changed_events = TRUE;
814
815     if (changed_events || tape.pos[tape.counter].delay >= 255)
816     {
817       if (tape.counter >= MAX_TAPE_LEN - 1)
818         return FALSE;
819
820       tape.counter++;
821       tape.pos[tape.counter].delay = 0;
822     }
823     else
824       tape.pos[tape.counter].delay++;
825   }
826
827   if (tape.pos[tape.counter].delay == 0)        // store new action
828   {
829     for (i = 0; i < MAX_TAPE_ACTIONS; i++)
830       tape.pos[tape.counter].action[i] = action[i];
831
832     tape.pos[tape.counter].delay++;
833   }
834
835   return TRUE;
836 }
837
838 void TapeRecordAction(byte action_raw[MAX_TAPE_ACTIONS])
839 {
840   byte action[MAX_TAPE_ACTIONS];
841   int i;
842
843   if (!tape.recording)          // (record action even when tape is paused)
844     return;
845
846   for (i = 0; i < MAX_TAPE_ACTIONS; i++)
847     action[i] = action_raw[i];
848
849   if (tape.use_key_actions && tape.set_centered_player)
850   {
851     for (i = 0; i < MAX_PLAYERS; i++)
852       if (tape.centered_player_nr_next == i ||
853           tape.centered_player_nr_next == -1)
854         action[i] |= KEY_SET_FOCUS;
855
856     tape.set_centered_player = FALSE;
857   }
858
859   if (GameFrameDelay != GAME_FRAME_DELAY)
860     tape.property_bits |= TAPE_PROPERTY_GAME_SPEED;
861
862   if (setup.small_game_graphics || SCR_FIELDX >= 2 * SCR_FIELDX_DEFAULT)
863     tape.property_bits |= TAPE_PROPERTY_SMALL_GRAPHICS;
864
865   if (!TapeAddAction(action))
866     TapeStopRecording();
867 }
868
869 void TapeTogglePause(boolean toggle_mode)
870 {
871   if (tape.playing && tape.pausing && (toggle_mode & TAPE_TOGGLE_PLAY_PAUSE))
872   {
873     // continue playing in normal mode
874     tape.fast_forward = FALSE;
875     tape.warp_forward = FALSE;
876     tape.deactivate_display = FALSE;
877
878     tape.pause_before_end = FALSE;
879   }
880
881   tape.pausing = !tape.pausing;
882
883   if (tape.single_step && (toggle_mode & TAPE_TOGGLE_MANUAL))
884     tape.single_step = FALSE;
885
886   if (tape.single_step)
887     tape.property_bits |= TAPE_PROPERTY_SINGLE_STEP;
888
889   if (tape.pausing)
890     tape.property_bits |= TAPE_PROPERTY_PAUSE_MODE;
891
892   DrawVideoDisplayCurrentState();
893
894   if (tape.deactivate_display)
895   {
896     if (tape.pausing)
897       TapeDeactivateDisplayOff(game_status == GAME_MODE_PLAYING);
898     else
899       TapeDeactivateDisplayOn();
900   }
901
902   if (tape.quick_resume)
903   {
904     tape.quick_resume = FALSE;
905
906     TapeStopWarpForward();
907     TapeAppendRecording();
908
909     if (!CheckEngineSnapshotSingle())
910       SaveEngineSnapshotSingle();
911
912     // restart step/move snapshots after quick loading tape
913     SaveEngineSnapshotToListInitial();
914
915     // do not map undo/redo buttons after quick loading tape
916     return;
917   }
918
919   if (game_status == GAME_MODE_PLAYING)
920   {
921     if (setup.show_load_save_buttons &&
922         setup.show_undo_redo_buttons &&
923         CheckEngineSnapshotList())
924     {
925       if (tape.pausing)
926         MapUndoRedoButtons();
927       else if (!tape.single_step)
928         MapLoadSaveButtons();
929     }
930
931     ModifyPauseButtons();
932   }
933 }
934
935 void TapeStartPlaying(void)
936 {
937   if (TAPE_IS_EMPTY(tape))
938     return;
939
940   if (!TAPE_IS_STOPPED(tape))
941     TapeStop();
942
943   TapeRewind();
944
945   tape.playing = TRUE;
946
947   DrawVideoDisplay(VIDEO_STATE_PLAY_ON, 0);
948   DrawVideoDisplay(VIDEO_STATE_DATE_ON, tape.date);
949   DrawVideoDisplay(VIDEO_STATE_TIME_ON, 0);
950   DrawVideoDisplay(VIDEO_STATE_FRAME_ON, 0);
951
952   MapTapeWarpButton();
953
954   SetDrawDeactivationMask(REDRAW_NONE);
955   audio.sound_deactivated = FALSE;
956 }
957
958 static void TapeStartGamePlaying(void)
959 {
960   TapeStartPlaying();
961
962   InitGame();
963 }
964
965 void TapeStopPlaying(void)
966 {
967   tape.playing = FALSE;
968   tape.pausing = FALSE;
969
970   if (tape.warp_forward)
971     TapeStopWarpForward();
972
973   DrawVideoDisplay(VIDEO_STATE_PLAY_OFF, 0);
974   MapTapeEjectButton();
975 }
976
977 byte *TapePlayAction(void)
978 {
979   int update_delay = FRAMES_PER_SECOND / 2;
980   boolean update_video_display = (FrameCounter % update_delay == 0);
981   boolean update_draw_label_on = ((FrameCounter / update_delay) % 2 == 1);
982   static byte action[MAX_TAPE_ACTIONS];
983   int i;
984
985   if (!tape.playing || tape.pausing)
986     return NULL;
987
988   if (tape.pause_before_end)  // stop some seconds before end of tape
989   {
990     if (TapeTime > (int)tape.length_seconds - TAPE_PAUSE_SECONDS_BEFORE_DEATH)
991     {
992       TapeStopWarpForward();
993       TapeTogglePause(TAPE_TOGGLE_MANUAL);
994
995       return NULL;
996     }
997   }
998
999   if (tape.counter >= tape.length)      // end of tape reached
1000   {
1001     if (tape.warp_forward && !tape.auto_play)
1002     {
1003       TapeStopWarpForward();
1004       TapeTogglePause(TAPE_TOGGLE_MANUAL);
1005     }
1006     else
1007     {
1008       TapeStop();
1009     }
1010
1011     return NULL;
1012   }
1013
1014   if (update_video_display && !tape.deactivate_display)
1015   {
1016     int state = 0;
1017
1018     if (tape.warp_forward)
1019       state |= VIDEO_STATE_WARP(update_draw_label_on);
1020     else if (tape.fast_forward)
1021       state |= VIDEO_STATE_FFWD(update_draw_label_on);
1022
1023     if (tape.pause_before_end)
1024       state |= VIDEO_STATE_PBEND(update_draw_label_on);
1025
1026     // draw labels and symbols separately to prevent labels overlapping symbols
1027     DrawVideoDisplayLabel(state);
1028     DrawVideoDisplaySymbol(state);
1029   }
1030
1031   for (i = 0; i < MAX_TAPE_ACTIONS; i++)
1032     action[i] = tape.pos[tape.counter].action[i];
1033
1034 #if DEBUG_TAPE_WHEN_PLAYING
1035   DebugContinued("", "%05d", FrameCounter);
1036   for (i = 0; i < MAX_TAPE_ACTIONS; i++)
1037     DebugContinued("", "   %08x", action[i]);
1038   DebugContinued("tape:play", "\n");
1039 #endif
1040
1041   tape.set_centered_player = FALSE;
1042   tape.centered_player_nr_next = -999;
1043
1044   if (tape.use_key_actions)
1045   {
1046     for (i = 0; i < MAX_PLAYERS; i++)
1047     {
1048       if (action[i] & KEY_SET_FOCUS)
1049       {
1050         tape.set_centered_player = TRUE;
1051         tape.centered_player_nr_next =
1052           (tape.centered_player_nr_next == -999 ? i : -1);
1053       }
1054
1055       action[i] &= ~KEY_SET_FOCUS;
1056     }
1057   }
1058
1059   tape.delay_played++;
1060   if (tape.delay_played >= tape.pos[tape.counter].delay)
1061   {
1062     tape.counter++;
1063     tape.delay_played = 0;
1064   }
1065
1066   if (tape.auto_play)
1067     PrintTapeReplayProgress(FALSE);
1068
1069   if (options.tape_log_filename != NULL)
1070     WriteTapeLogfile(action);
1071
1072   return action;
1073 }
1074
1075 void TapeStop(void)
1076 {
1077   if (tape.pausing)
1078     TapeTogglePause(TAPE_TOGGLE_MANUAL);
1079
1080   TapeStopRecording();
1081   TapeStopPlaying();
1082
1083   DrawVideoDisplay(VIDEO_STATE_OFF, 0);
1084
1085   if (tape.date && tape.length)
1086   {
1087     DrawVideoDisplay(VIDEO_STATE_DATE_ON, tape.date);
1088     DrawVideoDisplay(VIDEO_STATE_TIME_ON, tape.length_seconds);
1089     DrawVideoDisplay(VIDEO_STATE_FRAME_ON, tape.length_frames);
1090   }
1091 }
1092
1093 static void TapeStopGameOrTape(boolean stop_game)
1094 {
1095   if (score_info_tape_play || (!tape.playing && stop_game))
1096     RequestQuitGame(FALSE);
1097   else
1098     TapeStop();
1099 }
1100
1101 void TapeStopGame(void)
1102 {
1103   if (game_status == GAME_MODE_MAIN)
1104     return;
1105
1106   TapeStopGameOrTape(TRUE);
1107 }
1108
1109 void TapeStopTape(void)
1110 {
1111   TapeStopGameOrTape(FALSE);
1112 }
1113
1114 unsigned int GetTapeLengthFrames(void)
1115 {
1116   unsigned int tape_length_frames = 0;
1117   int i;
1118
1119   if (TAPE_IS_EMPTY(tape))
1120     return 0;
1121
1122   for (i = 0; i < tape.length; i++)
1123     tape_length_frames += tape.pos[i].delay;
1124
1125   return tape_length_frames;
1126 }
1127
1128 unsigned int GetTapeLengthSeconds(void)
1129 {
1130   return (GetTapeLengthFrames() * GAME_FRAME_DELAY / 1000);
1131 }
1132
1133 static float GetTapeLengthSecondsFloat(void)
1134 {
1135   return ((float)GetTapeLengthFrames() * GAME_FRAME_DELAY / 1000);
1136 }
1137
1138 static void TapeStartWarpForward(int mode)
1139 {
1140   tape.fast_forward = (mode & AUTOPLAY_FFWD);
1141   tape.warp_forward = (mode & AUTOPLAY_WARP);
1142   tape.deactivate_display = (mode & AUTOPLAY_WARP_NO_DISPLAY);
1143
1144   tape.pausing = FALSE;
1145
1146   if (tape.deactivate_display)
1147     TapeDeactivateDisplayOn();
1148
1149   DrawVideoDisplayCurrentState();
1150 }
1151
1152 static void TapeStopWarpForward(void)
1153 {
1154   tape.fast_forward = FALSE;
1155   tape.warp_forward = FALSE;
1156   tape.deactivate_display = FALSE;
1157
1158   tape.pause_before_end = FALSE;
1159
1160   TapeDeactivateDisplayOff(game_status == GAME_MODE_PLAYING);
1161
1162   DrawVideoDisplayCurrentState();
1163 }
1164
1165 static void TapeSingleStep(void)
1166 {
1167   if (network.enabled)
1168     return;
1169
1170   if (!tape.pausing)
1171     TapeTogglePause(TAPE_TOGGLE_MANUAL);
1172
1173   tape.single_step = !tape.single_step;
1174
1175   DrawVideoDisplay(VIDEO_STATE_1STEP(tape.single_step), 0);
1176 }
1177
1178 void TapeQuickSave(void)
1179 {
1180   if (game_status == GAME_MODE_MAIN)
1181   {
1182     Request("No game that can be saved!", REQ_CONFIRM);
1183
1184     return;
1185   }
1186
1187   if (game_status != GAME_MODE_PLAYING)
1188     return;
1189
1190   if (tape.recording)
1191     TapeHaltRecording();        // prepare tape for saving on-the-fly
1192
1193   if (TAPE_IS_EMPTY(tape))
1194   {
1195     Request("No tape that can be saved!", REQ_CONFIRM);
1196
1197     return;
1198   }
1199
1200   tape.property_bits |= TAPE_PROPERTY_SNAPSHOT;
1201
1202   if (SaveTapeChecked(tape.level_nr))
1203     SaveEngineSnapshotSingle();
1204 }
1205
1206 void TapeQuickLoad(void)
1207 {
1208   char *filename = getTapeFilename(level_nr);
1209
1210   if (!fileExists(filename))
1211   {
1212     Request("No tape for this level!", REQ_CONFIRM);
1213
1214     return;
1215   }
1216
1217   if (tape.recording && !Request("Stop recording and load tape?",
1218                                  REQ_ASK | REQ_STAY_CLOSED))
1219   {
1220     OpenDoor(DOOR_OPEN_1 | DOOR_COPY_BACK);
1221
1222     return;
1223   }
1224
1225   if (game_status != GAME_MODE_PLAYING && game_status != GAME_MODE_MAIN)
1226     return;
1227
1228   if (CheckEngineSnapshotSingle())
1229   {
1230     TapeStartGamePlaying();
1231
1232     LoadEngineSnapshotSingle();
1233
1234     DrawCompleteVideoDisplay();
1235
1236     tape.playing = TRUE;
1237     tape.pausing = TRUE;
1238
1239     TapeStopWarpForward();
1240     TapeAppendRecording();
1241
1242     // restart step/move snapshots after quick loading tape
1243     SaveEngineSnapshotToListInitial();
1244
1245     if (FrameCounter > 0)
1246       return;
1247   }
1248
1249   TapeStop();
1250   TapeErase();
1251
1252   LoadTape(level_nr);
1253
1254   if (!TAPE_IS_EMPTY(tape))
1255   {
1256     TapeStartGamePlaying();
1257     TapeStartWarpForward(AUTOPLAY_MODE_WARP_NO_DISPLAY);
1258
1259     tape.quick_resume = TRUE;
1260     tape.property_bits |= TAPE_PROPERTY_SNAPSHOT;
1261   }
1262   else  // this should not happen (basically checked above)
1263   {
1264     int reopen_door = (game_status == GAME_MODE_PLAYING ? REQ_REOPEN : 0);
1265
1266     Request("No tape for this level!", REQ_CONFIRM | reopen_door);
1267   }
1268 }
1269
1270 static boolean checkRestartGame(char *message)
1271 {
1272   if (game_status == GAME_MODE_MAIN)
1273     return TRUE;
1274
1275   if (!hasStartedNetworkGame())
1276     return FALSE;
1277
1278   if (level_editor_test_game)
1279     return TRUE;
1280
1281   if (game.all_players_gone)
1282     return TRUE;
1283
1284   if (!setup.ask_on_quit_game)
1285     return TRUE;
1286
1287   if (Request(message, REQ_ASK | REQ_STAY_CLOSED))
1288     return TRUE;
1289
1290   OpenDoor(DOOR_OPEN_1 | DOOR_COPY_BACK);
1291
1292   return FALSE;
1293 }
1294
1295 void TapeRestartGame(void)
1296 {
1297   if (score_info_tape_play)
1298   {
1299     TapeStartGamePlaying();
1300
1301     return;
1302   }
1303
1304   if (!checkRestartGame("Restart game?"))
1305     return;
1306
1307   StartGameActions(network.enabled, setup.autorecord, level.random_seed);
1308 }
1309
1310 void TapeReplayAndPauseBeforeEnd(void)
1311 {
1312   if (score_info_tape_play)
1313     return;
1314
1315   if (TAPE_IS_EMPTY(tape) && !tape.recording)
1316   {
1317     Request("No tape for this level!", REQ_CONFIRM);
1318
1319     return;
1320   }
1321
1322   if (!checkRestartGame("Replay game and pause before end?"))
1323     return;
1324
1325   TapeStop();
1326   TapeStartGamePlaying();
1327   TapeStartWarpForward(AUTOPLAY_MODE_WARP_NO_DISPLAY);
1328
1329   tape.pause_before_end = TRUE;
1330   tape.quick_resume = TRUE;
1331 }
1332
1333 boolean hasSolutionTape(void)
1334 {
1335   boolean tape_file_exists = fileExists(getSolutionTapeFilename(level_nr));
1336   boolean level_has_tape = (level.game_engine_type == GAME_ENGINE_TYPE_SP &&
1337                             level.native_sp_level->demo.is_available);
1338
1339   return (tape_file_exists || level_has_tape);
1340 }
1341
1342 boolean InsertSolutionTape(void)
1343 {
1344   if (!hasSolutionTape())
1345   {
1346     Request("No solution tape for this level!", REQ_CONFIRM);
1347
1348     return FALSE;
1349   }
1350
1351   if (!TAPE_IS_STOPPED(tape))
1352     TapeStop();
1353
1354   // if tape recorder already contains a tape, remove it without asking
1355   TapeErase();
1356
1357   LoadSolutionTape(level_nr);
1358
1359   DrawCompleteVideoDisplay();
1360
1361   if (TAPE_IS_EMPTY(tape))
1362   {
1363     Request("Loading solution tape for this level failed!", REQ_CONFIRM);
1364
1365     return FALSE;
1366   }
1367
1368   return TRUE;
1369 }
1370
1371 boolean PlaySolutionTape(void)
1372 {
1373   if (!InsertSolutionTape())
1374     return FALSE;
1375
1376   TapeStartGamePlaying();
1377
1378   return TRUE;
1379 }
1380
1381 static void PlayScoreTape_UpdateBusyState(void)
1382 {
1383   int game_status_last = game_status;
1384
1385   SetGameStatus(GAME_MODE_LOADING);
1386
1387   UPDATE_BUSY_STATE();
1388
1389   SetGameStatus(game_status_last);
1390 }
1391
1392 static boolean PlayScoreTape_WaitForDownload(void)
1393 {
1394   unsigned int download_delay = 0;
1395   unsigned int download_delay_value = 10000;
1396
1397   ResetDelayCounter(&download_delay);
1398
1399   // wait for score tape to be successfully downloaded (and fail on timeout)
1400   while (!server_scores.tape_downloaded)
1401   {
1402     if (DelayReached(&download_delay, download_delay_value))
1403       return FALSE;
1404
1405     PlayScoreTape_UpdateBusyState();
1406
1407     Delay(20);
1408   }
1409
1410   return TRUE;
1411 }
1412
1413 boolean PlayScoreTape(int entry_nr)
1414 {
1415   struct ScoreEntry *entry = &scores.entry[entry_nr];
1416   char *tape_filename = getScoreTapeFilename(entry->tape_basename, level_nr);
1417   boolean download_tape = (!fileExists(tape_filename));
1418
1419   if (entry->id == -1)
1420     return FALSE;
1421
1422   server_scores.tape_downloaded = FALSE;
1423
1424   if (download_tape)
1425     ApiGetScoreTapeAsThread(level_nr, entry->id, entry->tape_basename);
1426
1427   SetGameStatus(GAME_MODE_PLAYING);
1428
1429   FadeOut(REDRAW_FIELD);
1430
1431   if (download_tape && !PlayScoreTape_WaitForDownload())
1432   {
1433     SetGameStatus(GAME_MODE_SCOREINFO);
1434     ClearField();
1435
1436     Request("Cannot download score tape from score server!", REQ_CONFIRM);
1437
1438     return FALSE;
1439   }
1440
1441   if (!TAPE_IS_STOPPED(tape))
1442     TapeStop();
1443
1444   // if tape recorder already contains a tape, remove it without asking
1445   TapeErase();
1446
1447   LoadScoreTape(entry->tape_basename, level_nr);
1448
1449   if (TAPE_IS_EMPTY(tape))
1450   {
1451     SetGameStatus(GAME_MODE_SCOREINFO);
1452     ClearField();
1453
1454     Request("Cannot load score tape for this level!", REQ_CONFIRM);
1455
1456     return FALSE;
1457   }
1458
1459   FadeSkipNextFadeOut();
1460
1461   TapeStartGamePlaying();
1462
1463   score_info_tape_play = TRUE;
1464
1465   return TRUE;
1466 }
1467
1468 static boolean checkTapesFromSameLevel(struct TapeInfo *t1, struct TapeInfo *t2)
1469 {
1470   return (strEqual(t1->level_identifier, t2->level_identifier) &&
1471           t1->level_nr == t2->level_nr);
1472 }
1473
1474 static void CopyTape(struct TapeInfo *tape_from, struct TapeInfo *tape_to)
1475 {
1476   *tape_to = *tape_from;
1477 }
1478
1479 static void SwapTapes(struct TapeInfo *t1, struct TapeInfo *t2)
1480 {
1481   struct TapeInfo tmp = *t1;
1482
1483   *t1 = *t2;
1484   *t2 = tmp;
1485 }
1486
1487 static void CopyTapeToUndoBuffer(void)
1488 {
1489   // copy tapes to undo buffer if large enough (or larger than last undo tape)
1490   // or if the last undo tape is from a different level set or level number
1491   if (tape.length_seconds >= TAPE_MIN_SECONDS_FOR_UNDO_BUFFER ||
1492       tape.length_seconds >= tape_undo_buffer.length_seconds ||
1493       !checkTapesFromSameLevel(&tape, &tape_undo_buffer))
1494   {
1495     CopyTape(&tape, &tape_undo_buffer);
1496   }
1497 }
1498
1499 void UndoTape(void)
1500 {
1501   // only undo tapes from same level set and with same level number
1502   if (!checkTapesFromSameLevel(&tape, &tape_undo_buffer))
1503     return;
1504
1505   if (!TAPE_IS_STOPPED(tape))
1506     TapeStop();
1507
1508   // swap last recorded tape with undo buffer, so undo can be reversed
1509   SwapTapes(&tape, &tape_undo_buffer);
1510
1511   DrawCompleteVideoDisplay();
1512 }
1513
1514 void FixTape_ForceSinglePlayer(void)
1515 {
1516   int i;
1517
1518   /* fix single-player tapes that contain player input for more than one
1519      player (due to a bug in 3.3.1.2 and earlier versions), which results
1520      in playing levels with more than one player in multi-player mode,
1521      even though the tape was originally recorded in single-player mode */
1522
1523   // remove player input actions for all players but the first one
1524   for (i = 1; i < MAX_PLAYERS; i++)
1525     tape.player_participates[i] = FALSE;
1526
1527   tape.changed = TRUE;
1528 }
1529
1530
1531 // ----------------------------------------------------------------------------
1532 // tape autoplay functions
1533 // ----------------------------------------------------------------------------
1534
1535 static TreeInfo *getNextValidAutoPlayEntry(TreeInfo *node)
1536 {
1537   node = getNextValidTreeInfoEntry(node);
1538
1539   while (node && node->is_copy)
1540     node = getNextValidTreeInfoEntry(node);
1541
1542   return node;
1543 }
1544
1545 static TreeInfo *getFirstValidAutoPlayEntry(TreeInfo *node)
1546 {
1547   node = getFirstValidTreeInfoEntry(node);
1548
1549   if (node && node->is_copy)
1550     return getNextValidAutoPlayEntry(node);
1551
1552   return node;
1553 }
1554
1555 static void AutoPlayTapes_SetScoreEntry(int score, int time)
1556 {
1557   char *name = (options.mytapes ? setup.player_name : options.player_name);
1558
1559   // set unique basename for score tape (for uploading to score server)
1560   strcpy(tape.score_tape_basename, getScoreTapeBasename(name));
1561
1562   // store score in first score entry
1563   scores.last_added = 0;
1564
1565   struct ScoreEntry *entry = &scores.entry[scores.last_added];
1566
1567   strncpy(entry->tape_basename, tape.score_tape_basename, MAX_FILENAME_LEN);
1568   strncpy(entry->name, setup.player_name, MAX_PLAYER_NAME_LEN);
1569
1570   entry->score = score;
1571   entry->time = time;
1572
1573   PrintNoLog("- uploading score tape to score server ... ");
1574
1575   server_scores.uploaded = FALSE;
1576 }
1577
1578 static boolean AutoPlayTapes_WaitForUpload(void)
1579 {
1580   unsigned int upload_delay = 0;
1581   unsigned int upload_delay_value = 10000;
1582
1583   ResetDelayCounter(&upload_delay);
1584
1585   // wait for score tape to be successfully uploaded (and fail on timeout)
1586   while (!server_scores.uploaded)
1587   {
1588     if (DelayReached(&upload_delay, upload_delay_value))
1589     {
1590       PrintNoLog("\r");
1591       Print("- uploading score tape to score server - TIMEOUT.\n");
1592
1593       if (program.headless)
1594         Fail("cannot upload score tape to score server");
1595
1596       return FALSE;
1597     }
1598
1599     UPDATE_BUSY_STATE();
1600
1601     Delay(20);
1602   }
1603
1604   PrintNoLog("\r");
1605   Print("- uploading score tape to score server - uploaded.\n");
1606
1607   return TRUE;
1608 }
1609
1610 static int AutoPlayTapesExt(boolean initialize)
1611 {
1612   static struct AutoPlayInfo autoplay;
1613   static int num_tapes = 0;
1614   static int patch_nr = 0;
1615   static char *patch_name[] =
1616   {
1617     "original tape",
1618     "em_random_bug",
1619     "screen_34x34",
1620
1621     NULL
1622   };
1623   static int patch_version_first[] =
1624   {
1625     VERSION_IDENT(0,0,0,0),
1626     VERSION_IDENT(3,3,1,0),
1627     VERSION_IDENT(0,0,0,0),
1628
1629     -1
1630   };
1631   static int patch_version_last[] =
1632   {
1633     VERSION_IDENT(9,9,9,9),
1634     VERSION_IDENT(4,0,1,1),
1635     VERSION_IDENT(4,2,2,0),
1636
1637     -1
1638   };
1639   static byte patch_property_bit[] =
1640   {
1641     TAPE_PROPERTY_NONE,
1642     TAPE_PROPERTY_EM_RANDOM_BUG,
1643     TAPE_PROPERTY_NONE,
1644
1645     -1
1646   };
1647   LevelDirTree *leveldir_current_last = leveldir_current;
1648   boolean init_level_set = FALSE;
1649   int level_nr_last = level_nr;
1650   int i;
1651
1652   if (!initialize)
1653   {
1654     if (global.autoplay_mode == AUTOPLAY_MODE_FIX)
1655     {
1656       if (tape.auto_play_level_solved)
1657       {
1658         if (patch_nr > 0)
1659         {
1660           // level solved by patched tape -- save fixed tape
1661           char *filename = getTapeFilename(level_nr);
1662           char *filename_orig = getStringCat2(filename, ".orig");
1663
1664           // create backup from old tape, if not yet existing
1665           if (!fileExists(filename_orig))
1666             rename(filename, filename_orig);
1667
1668           SaveTapeToFilename(filename);
1669
1670           tape.auto_play_level_fixed = TRUE;
1671           autoplay.num_tapes_patched++;
1672         }
1673
1674         // continue with next tape
1675         patch_nr = 0;
1676       }
1677       else if (patch_name[patch_nr + 1] != NULL)
1678       {
1679         // level not solved by patched tape -- continue with next patch
1680         patch_nr++;
1681       }
1682       else
1683       {
1684         // level not solved by any patched tape -- continue with next tape
1685         tape.auto_play_level_not_fixable = TRUE;
1686         patch_nr = 0;
1687       }
1688     }
1689
1690     // just finished auto-playing tape
1691     PrintTapeReplayProgress(TRUE);
1692
1693     if (options.tape_log_filename != NULL)
1694       CloseTapeLogfile();
1695
1696     if (global.autoplay_mode == AUTOPLAY_MODE_SAVE &&
1697         tape.auto_play_level_solved)
1698     {
1699       AutoPlayTapes_SetScoreEntry(game.score_final, game.score_time_final);
1700
1701       if (leveldir_current)
1702       {
1703         // the tape's level set identifier may differ from current level set
1704         strncpy(tape.level_identifier, leveldir_current->identifier,
1705                 MAX_FILENAME_LEN);
1706         tape.level_identifier[MAX_FILENAME_LEN] = '\0';
1707
1708         // the tape's level number may differ from current level number
1709         tape.level_nr = level_nr;
1710       }
1711
1712       // save score tape to upload to server; may be required for some reasons:
1713       // * level set identifier in solution tapes may differ from level set
1714       // * level set identifier is missing (old-style tape without INFO chunk)
1715       // * solution tape may have native format (like Supaplex solution files)
1716
1717       SaveScoreTape(level_nr);
1718       SaveServerScore(level_nr, TRUE);
1719
1720       AutoPlayTapes_WaitForUpload();
1721     }
1722
1723     if (patch_nr == 0)
1724       autoplay.num_levels_played++;
1725
1726     if (tape.auto_play_level_solved)
1727       autoplay.num_levels_solved++;
1728
1729     if (level_nr >= 0 && level_nr < MAX_TAPES_PER_SET)
1730       autoplay.level_failed[level_nr] = !tape.auto_play_level_solved;
1731   }
1732   else
1733   {
1734     if (strEqual(global.autoplay_leveldir, "ALL"))
1735     {
1736       autoplay.all_levelsets = TRUE;
1737
1738       // tape mass-uploading only allowed for private tapes
1739       if (global.autoplay_mode == AUTOPLAY_MODE_UPLOAD)
1740         options.mytapes = TRUE;
1741     }
1742
1743     if ((global.autoplay_mode == AUTOPLAY_MODE_SAVE ||
1744          global.autoplay_mode == AUTOPLAY_MODE_UPLOAD) &&
1745         !options.mytapes &&
1746         options.player_name == NULL)
1747     {
1748       Fail("specify player name when uploading solution tapes");
1749     }
1750
1751     if (global.autoplay_mode != AUTOPLAY_MODE_UPLOAD)
1752       DrawCompleteVideoDisplay();
1753
1754     if (program.headless)
1755     {
1756       audio.sound_enabled = FALSE;
1757       setup.engine_snapshot_mode = getStringCopy(STR_SNAPSHOT_MODE_OFF);
1758     }
1759
1760     if (strSuffix(global.autoplay_leveldir, ".tape"))
1761     {
1762       autoplay.tape_filename = global.autoplay_leveldir;
1763
1764       if (!fileExists(autoplay.tape_filename))
1765         Fail("tape file '%s' does not exist", autoplay.tape_filename);
1766
1767       LoadTapeFromFilename(autoplay.tape_filename);
1768
1769       if (tape.no_valid_file)
1770         Fail("cannot load tape file '%s'", autoplay.tape_filename);
1771
1772       if (tape.no_info_chunk && !options.identifier)
1773         Fail("cannot get levelset from tape file '%s'", autoplay.tape_filename);
1774
1775       if (tape.no_info_chunk && !options.level_nr)
1776         Fail("cannot get level nr from tape file '%s'", autoplay.tape_filename);
1777
1778       global.autoplay_leveldir = tape.level_identifier;
1779
1780       if (options.identifier != NULL)
1781         global.autoplay_leveldir = options.identifier;
1782
1783       if (options.level_nr != NULL)
1784         tape.level_nr = atoi(options.level_nr);
1785
1786       if (tape.level_nr >= 0 && tape.level_nr < MAX_TAPES_PER_SET)
1787         global.autoplay_level[tape.level_nr] = TRUE;
1788
1789       global.autoplay_all = FALSE;
1790       options.mytapes = FALSE;
1791     }
1792
1793     if (autoplay.all_levelsets)
1794     {
1795       // start auto-playing first level set
1796       autoplay.leveldir = getFirstValidAutoPlayEntry(leveldir_first);
1797     }
1798     else
1799     {
1800       // auto-play selected level set
1801       autoplay.leveldir = getTreeInfoFromIdentifier(leveldir_first,
1802                                                     global.autoplay_leveldir);
1803     }
1804
1805     if (autoplay.leveldir == NULL)
1806       Fail("no such level identifier: '%s'", global.autoplay_leveldir);
1807
1808     // only private tapes may be modified
1809     if (global.autoplay_mode == AUTOPLAY_MODE_FIX)
1810       options.mytapes = TRUE;
1811
1812     // set timestamp for batch tape upload
1813     global.autoplay_time = time(NULL);
1814
1815     num_tapes = 0;
1816
1817     init_level_set = TRUE;
1818   }
1819
1820   while (1)
1821   {
1822     if (init_level_set)
1823     {
1824       leveldir_current = autoplay.leveldir;
1825
1826       if (autoplay.leveldir->first_level < 0)
1827         autoplay.leveldir->first_level = 0;
1828       if (autoplay.leveldir->last_level >= MAX_TAPES_PER_SET)
1829         autoplay.leveldir->last_level = MAX_TAPES_PER_SET - 1;
1830
1831       autoplay.level_nr = autoplay.leveldir->first_level;
1832
1833       autoplay.num_levels_played = 0;
1834       autoplay.num_levels_solved = 0;
1835       autoplay.num_tapes_patched = 0;
1836       autoplay.num_tape_missing = 0;
1837
1838       for (i = 0; i < MAX_TAPES_PER_SET; i++)
1839         autoplay.level_failed[i] = FALSE;
1840
1841       PrintTapeReplayHeader(&autoplay);
1842
1843       init_level_set = FALSE;
1844     }
1845
1846     if (autoplay.all_levelsets && global.autoplay_mode == AUTOPLAY_MODE_UPLOAD)
1847     {
1848       boolean skip_levelset = FALSE;
1849
1850       if (!directoryExists(getTapeDir(autoplay.leveldir->subdir)))
1851       {
1852         Print("No tape directory for this level set found -- skipping.\n");
1853
1854         skip_levelset = TRUE;
1855       }
1856
1857       if (CheckTapeDirectoryUploadsComplete(autoplay.leveldir->subdir))
1858       {
1859         Print("All tapes for this level set already uploaded -- skipping.\n");
1860
1861         skip_levelset = TRUE;
1862       }
1863
1864       if (skip_levelset)
1865       {
1866         PrintTapeReplaySummary(&autoplay);
1867
1868         // continue with next level set
1869         autoplay.leveldir = getNextValidAutoPlayEntry(autoplay.leveldir);
1870
1871         // all level sets processed
1872         if (autoplay.leveldir == NULL)
1873           break;
1874
1875         init_level_set = TRUE;
1876
1877         continue;
1878       }
1879     }
1880
1881     if (global.autoplay_mode != AUTOPLAY_MODE_FIX || patch_nr == 0)
1882       level_nr = autoplay.level_nr++;
1883
1884     UPDATE_BUSY_STATE();
1885
1886     // check if all tapes for this level set have been processed
1887     if (level_nr > autoplay.leveldir->last_level)
1888     {
1889       PrintTapeReplaySummary(&autoplay);
1890
1891       if (!autoplay.all_levelsets)
1892         break;
1893
1894       if (global.autoplay_mode == AUTOPLAY_MODE_UPLOAD)
1895         MarkTapeDirectoryUploadsAsComplete(autoplay.leveldir->subdir);
1896
1897       // continue with next level set
1898       autoplay.leveldir = getNextValidAutoPlayEntry(autoplay.leveldir);
1899
1900       // all level sets processed
1901       if (autoplay.leveldir == NULL)
1902         break;
1903
1904       init_level_set = TRUE;
1905
1906       continue;
1907     }
1908
1909     // set patch info (required for progress output)
1910     strcpy(tape_patch_info, "");
1911     if (global.autoplay_mode == AUTOPLAY_MODE_FIX)
1912       snprintf(tape_patch_info, MAX_OUTPUT_LINESIZE, "[%-13s] ",
1913                patch_name[patch_nr]);
1914
1915     if (!global.autoplay_all && !global.autoplay_level[level_nr])
1916       continue;
1917
1918     // speed things up in case of missing private tapes (skip loading level)
1919     if (options.mytapes && !fileExists(getTapeFilename(level_nr)))
1920     {
1921       autoplay.num_tape_missing++;
1922
1923       Print("Tape %03d: (no tape found)\n", level_nr);
1924
1925       continue;
1926     }
1927
1928     TapeErase();
1929     TapeRewind();       // needed to reset "tape.auto_play_level_solved"
1930
1931     LoadLevel(level_nr);
1932
1933     if (level.no_level_file || level.no_valid_file)
1934     {
1935       Print("Tape %03d: (no level found)\n", level_nr);
1936
1937       continue;
1938     }
1939
1940 #if 0
1941     // ACTIVATE THIS FOR LOADING/TESTING OF LEVELS ONLY
1942     Print("Tape %03d: (only testing level)\n", level_nr);
1943     continue;
1944 #endif
1945
1946     if (autoplay.tape_filename)
1947       LoadTapeFromFilename(autoplay.tape_filename);
1948     else if (options.mytapes)
1949       LoadTape(level_nr);
1950     else
1951       LoadSolutionTape(level_nr);
1952
1953     if (tape.no_valid_file)
1954     {
1955       autoplay.num_tape_missing++;
1956
1957       Print("Tape %03d: (no tape found)\n", level_nr);
1958
1959       continue;
1960     }
1961
1962     if (global.autoplay_mode == AUTOPLAY_MODE_FIX)
1963     {
1964       boolean skip_patch = FALSE;
1965
1966       if (tape.engine_version < patch_version_first[patch_nr] ||
1967           tape.engine_version > patch_version_last[patch_nr])
1968       {
1969         Print("Tape %03d %s[%02d:%02d]: (%s %d.%d.%d.%d) - skipped.\n",
1970               level_nr,  tape_patch_info,
1971               tape.length_seconds / 60, tape.length_seconds % 60,
1972               "not suitable for version",
1973               (tape.engine_version / 1000000) % 100,
1974               (tape.engine_version / 10000  ) % 100,
1975               (tape.engine_version / 100    ) % 100,
1976               (tape.engine_version          ) % 100);
1977
1978         skip_patch = TRUE;
1979       }
1980
1981       if (strEqual(patch_name[patch_nr], "screen_34x34") &&
1982           tape.num_participating_players == 1)
1983       {
1984         Print("Tape %03d %s[%02d:%02d]: (%s) - skipped.\n",
1985               level_nr,  tape_patch_info,
1986               tape.length_seconds / 60, tape.length_seconds % 60,
1987               "not suitable for single player tapes");
1988
1989         skip_patch = TRUE;
1990       }
1991
1992       if (skip_patch)
1993       {
1994         if (patch_name[patch_nr + 1] != NULL)
1995         {
1996           // continue with next patch
1997           patch_nr++;
1998         }
1999         else
2000         {
2001           // continue with next tape
2002           patch_nr = 0;
2003         }
2004
2005         continue;
2006       }
2007
2008       if (strEqual(patch_name[patch_nr], "screen_34x34"))
2009       {
2010         tape.scr_fieldx = SCR_FIELDX_DEFAULT * 2;
2011         tape.scr_fieldy = SCR_FIELDY_DEFAULT * 2;
2012       }
2013       else
2014       {
2015         tape.property_bits |= patch_property_bit[patch_nr];
2016       }
2017     }
2018
2019     num_tapes++;
2020
2021     if (global.autoplay_mode == AUTOPLAY_MODE_UPLOAD)
2022     {
2023       boolean use_temporary_tape_file = FALSE;
2024
2025       Print("Tape %03d:\n", level_nr);
2026
2027       AutoPlayTapes_SetScoreEntry(0, 0);
2028
2029       if (autoplay.tape_filename == NULL)
2030       {
2031         autoplay.tape_filename = (options.mytapes ? getTapeFilename(level_nr) :
2032                                   getDefaultSolutionTapeFilename(level_nr));
2033
2034         if (!fileExists(autoplay.tape_filename))
2035         {
2036           // non-standard or incorrect solution tape -- save to temporary file
2037           autoplay.tape_filename = getTemporaryTapeFilename();
2038
2039           SaveTapeToFilename(autoplay.tape_filename);
2040
2041           use_temporary_tape_file = TRUE;
2042         }
2043       }
2044
2045       SaveServerScoreFromFile(level_nr, TRUE, autoplay.tape_filename);
2046
2047       boolean success = AutoPlayTapes_WaitForUpload();
2048
2049       if (use_temporary_tape_file)
2050         unlink(autoplay.tape_filename);
2051
2052       // required for uploading multiple tapes
2053       autoplay.tape_filename = NULL;
2054
2055       if (!success)
2056       {
2057         num_tapes = -num_tapes;
2058
2059         break;
2060       }
2061
2062       continue;
2063     }
2064
2065     InitCounter();
2066
2067     if (options.tape_log_filename != NULL)
2068       OpenTapeLogfile();
2069
2070     TapeStartGamePlaying();
2071     TapeStartWarpForward(global.autoplay_mode);
2072
2073     autoplay.last_level_nr = level_nr;
2074
2075     return num_tapes;
2076   }
2077
2078   if (global.autoplay_mode == AUTOPLAY_MODE_UPLOAD)
2079   {
2080     Print("\n");
2081     PrintLine("=", 79);
2082
2083     if (num_tapes >= 0)
2084       Print("SUMMARY: %d tapes uploaded.\n", num_tapes);
2085     else
2086       Print("SUMMARY: Uploading tapes failed.\n");
2087
2088     PrintLine("=", 79);
2089   }
2090
2091   // clear timestamp for batch tape upload (required after interactive upload)
2092   global.autoplay_time = 0;
2093
2094   // exit if running headless or if visually auto-playing tapes
2095   if (program.headless || global.autoplay_mode != AUTOPLAY_MODE_UPLOAD)
2096     CloseAllAndExit(0);
2097
2098   // when running interactively, restore last selected level set and number
2099   leveldir_current = leveldir_current_last;
2100   level_nr = level_nr_last;
2101
2102   return num_tapes;
2103 }
2104
2105 int AutoPlayTapes(void)
2106 {
2107   return AutoPlayTapesExt(TRUE);
2108 }
2109
2110 int AutoPlayTapesContinue(void)
2111 {
2112   return AutoPlayTapesExt(FALSE);
2113 }
2114
2115
2116 // ----------------------------------------------------------------------------
2117 // tape patch functions
2118 // ----------------------------------------------------------------------------
2119
2120 static boolean PatchTape(struct TapeInfo *tape, char *mode)
2121 {
2122   Print("[%d.%d.%d.%d]: ",
2123         (tape->engine_version / 1000000) % 100,
2124         (tape->engine_version / 10000  ) % 100,
2125         (tape->engine_version / 100    ) % 100,
2126         (tape->engine_version          ) % 100);
2127
2128   if (strEqual(mode, "info"))
2129   {
2130     Print("property bits == 0x%02x\n", tape->property_bits);
2131
2132     return FALSE;
2133   }
2134
2135   boolean unpatch_tape = FALSE;
2136   boolean use_property_bit = FALSE;
2137   byte property_bitmask = 0;
2138
2139   if (strSuffix(mode, ":0") ||
2140       strSuffix(mode, ":off") ||
2141       strSuffix(mode, ":clear"))
2142     unpatch_tape = TRUE;
2143
2144   if (strEqual(mode, "em_random_bug") || strPrefix(mode, "em_random_bug:"))
2145   {
2146     // this bug was introduced in version 3.3.1.0 and fixed in version 4.0.1.2
2147     if (tape->engine_version <  VERSION_IDENT(3,3,1,0) ||
2148         tape->engine_version >= VERSION_IDENT(4,0,1,2))
2149     {
2150       Print("This tape version cannot be patched against EM random bug!\n");
2151
2152       return FALSE;
2153     }
2154
2155     property_bitmask = TAPE_PROPERTY_EM_RANDOM_BUG;
2156
2157     use_property_bit = TRUE;
2158   }
2159   else if (strEqual(mode, "screen_34x34") || strPrefix(mode, "screen_34x34:"))
2160   {
2161     // this bug only affects team mode tapes
2162     if (tape->num_participating_players == 1)
2163     {
2164       Print("Only team mode tapes can be patched against screen size bug!\n");
2165
2166       return FALSE;
2167     }
2168
2169     // this bug (that always existed before) was fixed in version 4.2.2.1
2170     if (tape->engine_version >= VERSION_IDENT(4,2,2,1))
2171     {
2172       Print("This tape version cannot be patched against screen size bug!\n");
2173
2174       return FALSE;
2175     }
2176
2177     int factor = (unpatch_tape ? 1 : 2);
2178     int scr_fieldx_new = SCR_FIELDX_DEFAULT * factor;
2179     int scr_fieldy_new = SCR_FIELDY_DEFAULT * factor;
2180
2181     if (scr_fieldx_new == tape->scr_fieldx &&
2182         scr_fieldy_new == tape->scr_fieldy)
2183     {
2184       Print("Tape already patched for '%s'!\n", mode);
2185
2186       return FALSE;
2187     }
2188
2189     tape->scr_fieldx = scr_fieldx_new;
2190     tape->scr_fieldy = scr_fieldy_new;
2191   }
2192   else
2193   {
2194     Print("Unknown patch mode '%s'!\n", mode);
2195
2196     return FALSE;
2197   }
2198
2199   // patching tapes using property bits may be used for several patch modes
2200   if (use_property_bit)
2201   {
2202     byte property_bits = tape->property_bits;
2203     boolean set_property_bit = (unpatch_tape ? FALSE : TRUE);
2204
2205     if (set_property_bit)
2206       property_bits |= property_bitmask;
2207     else
2208       property_bits &= ~property_bitmask;
2209
2210     if (property_bits == tape->property_bits)
2211     {
2212       Print("Tape already patched for '%s'!\n", mode);
2213
2214       return FALSE;
2215     }
2216
2217     tape->property_bits = property_bits;
2218   }
2219
2220   Print("Patching for '%s' ... ", mode);
2221
2222   return TRUE;
2223 }
2224
2225 void PatchTapes(void)
2226 {
2227   static LevelDirTree *patchtapes_leveldir = NULL;
2228   static int num_tapes_found = 0;
2229   static int num_tapes_patched = 0;
2230   char *mode = global.patchtapes_mode;
2231   int i;
2232
2233   if (strEqual(mode, "help"))
2234   {
2235     PrintLine("=", 79);
2236     Print("Supported patch modes:\n");
2237     Print("- \"em_random_bug\"   - use 64-bit random value bug for EM engine\n");
2238     Print("- \"screen_34x34\"    - force visible playfield size of 34 x 34\n");
2239     PrintLine("-", 79);
2240     Print("Supported modifiers:\n");
2241     Print("- add \":0\", \":off\" or \":clear\" to patch mode to un-patch tape file\n");
2242     PrintLine("=", 79);
2243
2244     CloseAllAndExit(0);
2245   }
2246
2247   patchtapes_leveldir = getTreeInfoFromIdentifier(leveldir_first,
2248                                                   global.patchtapes_leveldir);
2249
2250   if (patchtapes_leveldir == NULL)
2251     Fail("no such level identifier: '%s'", global.patchtapes_leveldir);
2252
2253   leveldir_current = patchtapes_leveldir;
2254
2255   if (patchtapes_leveldir->first_level < 0)
2256     patchtapes_leveldir->first_level = 0;
2257   if (patchtapes_leveldir->last_level >= MAX_TAPES_PER_SET)
2258     patchtapes_leveldir->last_level = MAX_TAPES_PER_SET - 1;
2259
2260   PrintLine("=", 79);
2261   Print("Patching level tapes for patch mode '%s'\n", mode);
2262   PrintLine("-", 79);
2263   Print("Level series identifier: '%s'\n", patchtapes_leveldir->identifier);
2264   Print("Level series name:       '%s'\n", patchtapes_leveldir->name);
2265   Print("Level series author:     '%s'\n", patchtapes_leveldir->author);
2266   Print("Number of levels:        %d\n",   patchtapes_leveldir->levels);
2267   PrintLine("=", 79);
2268   Print("\n");
2269
2270   int first_level = patchtapes_leveldir->first_level;
2271   int last_level = patchtapes_leveldir->last_level;
2272
2273   for (i = first_level; i <= last_level; i++)
2274   {
2275     if (!global.patchtapes_all && !global.patchtapes_level[i])
2276       continue;
2277
2278     Print("Tape %03d: ", i);
2279
2280     TapeErase();
2281     LoadTape(i);
2282
2283     if (tape.no_valid_file)
2284     {
2285       Print("(no tape found)\n");
2286
2287       continue;
2288     }
2289
2290     num_tapes_found++;
2291
2292     if (PatchTape(&tape, mode))
2293     {
2294       char *filename = getTapeFilename(i);
2295       char *filename_orig = getStringCat2(filename, ".orig");
2296
2297       if (!fileExists(filename_orig))
2298         rename(filename, filename_orig);
2299
2300       SaveTapeToFilename(filename);
2301
2302       Print("patched tape saved.\n");
2303
2304       num_tapes_patched++;
2305     }
2306   }
2307
2308   Print("\n");
2309   PrintLine("=", 79);
2310   Print("Number of tapes found: %d\n", num_tapes_found);
2311   Print("Number of tapes patched: %d\n", num_tapes_patched);
2312   PrintLine("=", 79);
2313
2314   CloseAllAndExit(0);
2315 }
2316
2317
2318 // ---------- new tape button stuff -------------------------------------------
2319
2320 static struct
2321 {
2322   int graphic;
2323   struct XY *pos;
2324   int gadget_id;
2325   char *infotext;
2326 } tapebutton_info[NUM_TAPE_BUTTONS] =
2327 {
2328   {
2329     IMG_GFX_TAPE_BUTTON_EJECT,          &tape.button.eject,
2330     TAPE_CTRL_ID_EJECT,                 "eject tape"
2331   },
2332   {
2333     // (same position as "eject" button)
2334     IMG_GFX_TAPE_BUTTON_EXTRA,          &tape.button.eject,
2335     TAPE_CTRL_ID_EXTRA,                 "extra functions"
2336   },
2337   {
2338     IMG_GFX_TAPE_BUTTON_STOP,           &tape.button.stop,
2339     TAPE_CTRL_ID_STOP,                  "stop tape"
2340   },
2341   {
2342     IMG_GFX_TAPE_BUTTON_PAUSE,          &tape.button.pause,
2343     TAPE_CTRL_ID_PAUSE,                 "pause tape"
2344   },
2345   {
2346     IMG_GFX_TAPE_BUTTON_RECORD,         &tape.button.record,
2347     TAPE_CTRL_ID_RECORD,                "record tape"
2348   },
2349   {
2350     IMG_GFX_TAPE_BUTTON_PLAY,           &tape.button.play,
2351     TAPE_CTRL_ID_PLAY,                  "play tape"
2352   },
2353   {
2354     IMG_GFX_TAPE_BUTTON_INSERT_SOLUTION,&tape.button.insert_solution,
2355     TAPE_CTRL_ID_INSERT_SOLUTION,       "insert solution tape"
2356   },
2357   {
2358     IMG_GFX_TAPE_BUTTON_PLAY_SOLUTION,  &tape.button.play_solution,
2359     TAPE_CTRL_ID_PLAY_SOLUTION,         "play solution tape"
2360   }
2361 };
2362
2363 void CreateTapeButtons(void)
2364 {
2365   int i;
2366
2367   for (i = 0; i < NUM_TAPE_BUTTONS; i++)
2368   {
2369     int graphic = tapebutton_info[i].graphic;
2370     struct GraphicInfo *gfx = &graphic_info[graphic];
2371     struct XY *pos = tapebutton_info[i].pos;
2372     struct GadgetInfo *gi;
2373     int gd_x = gfx->src_x;
2374     int gd_y = gfx->src_y;
2375     int gd_xp = gfx->src_x + gfx->pressed_xoffset;
2376     int gd_yp = gfx->src_y + gfx->pressed_yoffset;
2377     int id = i;
2378
2379     gi = CreateGadget(GDI_CUSTOM_ID, id,
2380                       GDI_IMAGE_ID, graphic,
2381                       GDI_INFO_TEXT, tapebutton_info[i].infotext,
2382                       GDI_X, VX + pos->x,
2383                       GDI_Y, VY + pos->y,
2384                       GDI_WIDTH, gfx->width,
2385                       GDI_HEIGHT, gfx->height,
2386                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
2387                       GDI_STATE, GD_BUTTON_UNPRESSED,
2388                       GDI_DESIGN_UNPRESSED, gfx->bitmap, gd_x, gd_y,
2389                       GDI_DESIGN_PRESSED, gfx->bitmap, gd_xp, gd_yp,
2390                       GDI_DIRECT_DRAW, FALSE,
2391                       GDI_EVENT_MASK, GD_EVENT_RELEASED,
2392                       GDI_CALLBACK_ACTION, HandleTapeButtons,
2393                       GDI_END);
2394
2395     if (gi == NULL)
2396       Fail("cannot create gadget");
2397
2398     tape_gadget[id] = gi;
2399   }
2400 }
2401
2402 void FreeTapeButtons(void)
2403 {
2404   int i;
2405
2406   for (i = 0; i < NUM_TAPE_BUTTONS; i++)
2407     FreeGadget(tape_gadget[i]);
2408 }
2409
2410 void MapTapeEjectButton(void)
2411 {
2412   UnmapGadget(tape_gadget[TAPE_CTRL_ID_EXTRA]);
2413   MapGadget(tape_gadget[TAPE_CTRL_ID_EJECT]);
2414 }
2415
2416 void MapTapeWarpButton(void)
2417 {
2418   UnmapGadget(tape_gadget[TAPE_CTRL_ID_EJECT]);
2419   MapGadget(tape_gadget[TAPE_CTRL_ID_EXTRA]);
2420 }
2421
2422 void MapTapeButtons(void)
2423 {
2424   int i;
2425
2426   for (i = 0; i < NUM_TAPE_BUTTONS; i++)
2427     if (i != TAPE_CTRL_ID_EXTRA)
2428       MapGadget(tape_gadget[i]);
2429
2430   if (tape.recording || tape.playing)
2431     MapTapeWarpButton();
2432
2433   if (tape.show_game_buttons)
2434     MapGameButtonsOnTape();
2435 }
2436
2437 void UnmapTapeButtons(void)
2438 {
2439   int i;
2440
2441   for (i = 0; i < NUM_TAPE_BUTTONS; i++)
2442     UnmapGadget(tape_gadget[i]);
2443
2444   if (tape.show_game_buttons)
2445     UnmapGameButtonsOnTape();
2446 }
2447
2448 void RedrawTapeButtons(void)
2449 {
2450   int i;
2451
2452   for (i = 0; i < NUM_TAPE_BUTTONS; i++)
2453     RedrawGadget(tape_gadget[i]);
2454
2455   if (tape.show_game_buttons)
2456     RedrawGameButtonsOnTape();
2457 }
2458
2459 void RedrawOrRemapTapeButtons(void)
2460 {
2461   if (tape_gadget[TAPE_CTRL_ID_PLAY]->mapped)
2462   {
2463     // tape buttons already mapped
2464     RedrawTapeButtons();
2465   }
2466   else
2467   {
2468     UnmapTapeButtons();
2469     MapTapeButtons();
2470   }
2471 }
2472
2473 static void HandleTapeButtonsExt(int id)
2474 {
2475   if (game_status != GAME_MODE_MAIN && game_status != GAME_MODE_PLAYING)
2476     return;
2477
2478   switch (id)
2479   {
2480     case TAPE_CTRL_ID_EJECT:
2481       TapeStop();
2482
2483       if (TAPE_IS_EMPTY(tape))
2484       {
2485         LoadTape(level_nr);
2486
2487         if (TAPE_IS_EMPTY(tape))
2488           Request("No tape for this level!", REQ_CONFIRM);
2489       }
2490       else
2491       {
2492         if (tape.changed)
2493           SaveTapeChecked(level_nr);
2494
2495         TapeErase();
2496       }
2497
2498       DrawCompleteVideoDisplay();
2499       break;
2500
2501     case TAPE_CTRL_ID_EXTRA:
2502       if (tape.playing)
2503       {
2504         tape.pause_before_end = !tape.pause_before_end;
2505
2506         DrawVideoDisplayCurrentState();
2507       }
2508       else if (tape.recording)
2509       {
2510         TapeSingleStep();
2511       }
2512
2513       break;
2514
2515     case TAPE_CTRL_ID_STOP:
2516       TapeStopTape();
2517
2518       break;
2519
2520     case TAPE_CTRL_ID_PAUSE:
2521       TapeTogglePause(TAPE_TOGGLE_MANUAL);
2522
2523       break;
2524
2525     case TAPE_CTRL_ID_RECORD:
2526       if (TAPE_IS_STOPPED(tape))
2527       {
2528         TapeStartGameRecording();
2529       }
2530       else if (tape.pausing)
2531       {
2532         if (tape.playing)                       // PLAY -> PAUSE -> RECORD
2533           TapeAppendRecording();
2534         else
2535           TapeTogglePause(TAPE_TOGGLE_MANUAL);
2536       }
2537
2538       break;
2539
2540     case TAPE_CTRL_ID_PLAY:
2541       if (tape.recording && tape.pausing)       // PAUSE -> RECORD
2542       {
2543         // ("TAPE_IS_EMPTY(tape)" is TRUE here -- probably fix this)
2544
2545         TapeTogglePause(TAPE_TOGGLE_MANUAL);
2546       }
2547
2548       if (TAPE_IS_EMPTY(tape))
2549         break;
2550
2551       if (TAPE_IS_STOPPED(tape))
2552       {
2553         TapeStartGamePlaying();
2554       }
2555       else if (tape.playing)
2556       {
2557         if (tape.pausing)                       // PAUSE -> PLAY
2558         {
2559           TapeTogglePause(TAPE_TOGGLE_MANUAL | TAPE_TOGGLE_PLAY_PAUSE);
2560         }
2561         else if (!tape.fast_forward)            // PLAY -> FFWD
2562         {
2563           tape.fast_forward = TRUE;
2564         }
2565         else if (!tape.warp_forward)            // FFWD -> WARP
2566         {
2567           tape.warp_forward = TRUE;
2568         }
2569         else if (!tape.deactivate_display)      // WARP -> WARP BLIND
2570         {
2571           tape.deactivate_display = TRUE;
2572
2573           TapeDeactivateDisplayOn();
2574         }
2575         else                                    // WARP BLIND -> PLAY
2576         {
2577           tape.fast_forward = FALSE;
2578           tape.warp_forward = FALSE;
2579           tape.deactivate_display = FALSE;
2580
2581           TapeDeactivateDisplayOff(game_status == GAME_MODE_PLAYING);
2582         }
2583
2584         DrawVideoDisplayCurrentState();
2585       }
2586
2587       break;
2588
2589     case TAPE_CTRL_ID_INSERT_SOLUTION:
2590       InsertSolutionTape();
2591
2592       break;
2593
2594     case TAPE_CTRL_ID_PLAY_SOLUTION:
2595       PlaySolutionTape();
2596
2597       break;
2598
2599     default:
2600       break;
2601   }
2602 }
2603
2604 static void HandleTapeButtons(struct GadgetInfo *gi)
2605 {
2606   HandleTapeButtonsExt(gi->custom_id);
2607 }
2608
2609 void HandleTapeButtonKeys(Key key)
2610 {
2611   boolean eject_button_is_active = TAPE_IS_STOPPED(tape);
2612   boolean extra_button_is_active = !eject_button_is_active;
2613
2614   if (key == setup.shortcut.tape_eject && eject_button_is_active)
2615     HandleTapeButtonsExt(TAPE_CTRL_ID_EJECT);
2616   else if (key == setup.shortcut.tape_extra && extra_button_is_active)
2617     HandleTapeButtonsExt(TAPE_CTRL_ID_EXTRA);
2618   else if (key == setup.shortcut.tape_stop)
2619     HandleTapeButtonsExt(TAPE_CTRL_ID_STOP);
2620   else if (key == setup.shortcut.tape_pause)
2621     HandleTapeButtonsExt(TAPE_CTRL_ID_PAUSE);
2622   else if (key == setup.shortcut.tape_record)
2623     HandleTapeButtonsExt(TAPE_CTRL_ID_RECORD);
2624   else if (key == setup.shortcut.tape_play)
2625     HandleTapeButtonsExt(TAPE_CTRL_ID_PLAY);
2626 }