added setup option to continue recording after replaying tape
[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   tape.solved = FALSE;
668
669   tape.random_seed = InitRND(level.random_seed);
670
671   tape.file_version = FILE_VERSION_ACTUAL;
672   tape.game_version = GAME_VERSION_ACTUAL;
673   tape.engine_version = level.game_version;
674
675   tape.property_bits = TAPE_PROPERTY_NONE;
676
677   TapeSetDateFromNow();
678
679   for (i = 0; i < MAX_PLAYERS; i++)
680     tape.player_participates[i] = FALSE;
681
682   tape.centered_player_nr_next = -1;
683   tape.set_centered_player = FALSE;
684
685   // set flags for game actions to default values (may be overwritten later)
686   tape.use_key_actions = TRUE;
687   tape.use_mouse_actions = FALSE;
688 }
689
690 static void TapeRewind(void)
691 {
692   tape.counter = 0;
693   tape.delay_played = 0;
694   tape.pause_before_end = FALSE;
695   tape.recording = FALSE;
696   tape.playing = FALSE;
697   tape.fast_forward = FALSE;
698   tape.warp_forward = FALSE;
699   tape.deactivate_display = FALSE;
700   tape.auto_play = (global.autoplay_leveldir != NULL);
701   tape.auto_play_level_solved = FALSE;
702   tape.auto_play_level_fixed = FALSE;
703   tape.auto_play_level_not_fixable = FALSE;
704   tape.quick_resume = FALSE;
705   tape.single_step = FALSE;
706
707   tape.centered_player_nr_next = -1;
708   tape.set_centered_player = FALSE;
709
710   InitRND(tape.random_seed);
711 }
712
713 static void TapeSetRandomSeed(int random_seed)
714 {
715   tape.random_seed = InitRND(random_seed);
716 }
717
718 void TapeStartRecording(int random_seed)
719 {
720   if (!TAPE_IS_STOPPED(tape))
721     TapeStop();
722
723   TapeErase();
724   TapeRewind();
725   TapeSetRandomSeed(random_seed);
726
727   tape.recording = TRUE;
728
729   DrawVideoDisplay(VIDEO_STATE_REC_ON, 0);
730   DrawVideoDisplay(VIDEO_STATE_DATE_ON, tape.date);
731   DrawVideoDisplay(VIDEO_STATE_TIME_ON, 0);
732   DrawVideoDisplay(VIDEO_STATE_FRAME_ON, 0);
733
734   MapTapeWarpButton();
735
736   SetDrawDeactivationMask(REDRAW_NONE);
737   audio.sound_deactivated = FALSE;
738
739   // required here to update video display if tape door is closed
740   if (GetDoorState() & DOOR_CLOSE_2)
741     OpenDoor(GetDoorState() | DOOR_NO_DELAY | DOOR_FORCE_REDRAW);
742 }
743
744 static void TapeStartGameRecording(void)
745 {
746   StartGameActions(network.enabled, TRUE, level.random_seed);
747 }
748
749 static void TapeAppendRecording(void)
750 {
751   if (!tape.playing || !tape.pausing)
752     return;
753
754   // stop playing
755   tape.playing = FALSE;
756   tape.fast_forward = FALSE;
757   tape.warp_forward = FALSE;
758   tape.pause_before_end = FALSE;
759   tape.deactivate_display = FALSE;
760
761   // start recording
762   tape.recording = TRUE;
763   tape.changed = TRUE;
764   tape.solved = FALSE;
765
766   // set current delay (for last played move)
767   tape.pos[tape.counter].delay = tape.delay_played;
768
769   tape.property_bits |= TAPE_PROPERTY_REPLAYED;
770
771   // set current date
772   TapeSetDateFromNow();
773
774   DrawVideoDisplay(VIDEO_STATE_DATE_ON, tape.date);
775   DrawVideoDisplay(VIDEO_STATE_PLAY_OFF | VIDEO_STATE_REC_ON, 0);
776
777   UpdateAndDisplayGameControlValues();
778 }
779
780 void TapeHaltRecording(void)
781 {
782   tape.counter++;
783
784   // initialize delay for next tape entry (to be able to continue recording)
785   if (tape.counter < MAX_TAPE_LEN)
786     tape.pos[tape.counter].delay = 0;
787
788   tape.length = tape.counter;
789   tape.length_frames = GetTapeLengthFrames();
790   tape.length_seconds = GetTapeLengthSeconds();
791 }
792
793 void TapeStopRecording(void)
794 {
795   if (tape.recording)
796     TapeHaltRecording();
797
798   tape.recording = FALSE;
799   tape.pausing = FALSE;
800
801   DrawVideoDisplay(VIDEO_STATE_REC_OFF, 0);
802   MapTapeEjectButton();
803 }
804
805 boolean TapeAddAction(byte action[MAX_TAPE_ACTIONS])
806 {
807   int i;
808
809   if (tape.pos[tape.counter].delay > 0)         // already stored action
810   {
811     boolean changed_events = FALSE;
812
813     for (i = 0; i < MAX_TAPE_ACTIONS; i++)
814       if (tape.pos[tape.counter].action[i] != action[i])
815         changed_events = TRUE;
816
817     if (changed_events || tape.pos[tape.counter].delay >= 255)
818     {
819       if (tape.counter >= MAX_TAPE_LEN - 1)
820         return FALSE;
821
822       tape.counter++;
823       tape.pos[tape.counter].delay = 0;
824     }
825     else
826       tape.pos[tape.counter].delay++;
827   }
828
829   if (tape.pos[tape.counter].delay == 0)        // store new action
830   {
831     for (i = 0; i < MAX_TAPE_ACTIONS; i++)
832       tape.pos[tape.counter].action[i] = action[i];
833
834     tape.pos[tape.counter].delay++;
835   }
836
837   return TRUE;
838 }
839
840 void TapeRecordAction(byte action_raw[MAX_TAPE_ACTIONS])
841 {
842   byte action[MAX_TAPE_ACTIONS];
843   int i;
844
845   if (!tape.recording)          // (record action even when tape is paused)
846     return;
847
848   for (i = 0; i < MAX_TAPE_ACTIONS; i++)
849     action[i] = action_raw[i];
850
851   if (tape.use_key_actions && tape.set_centered_player)
852   {
853     for (i = 0; i < MAX_PLAYERS; i++)
854       if (tape.centered_player_nr_next == i ||
855           tape.centered_player_nr_next == -1)
856         action[i] |= KEY_SET_FOCUS;
857
858     tape.set_centered_player = FALSE;
859   }
860
861   if (GameFrameDelay != GAME_FRAME_DELAY)
862     tape.property_bits |= TAPE_PROPERTY_GAME_SPEED;
863
864   if (setup.small_game_graphics || SCR_FIELDX >= 2 * SCR_FIELDX_DEFAULT)
865     tape.property_bits |= TAPE_PROPERTY_SMALL_GRAPHICS;
866
867   if (!TapeAddAction(action))
868     TapeStopRecording();
869 }
870
871 void TapeTogglePause(boolean toggle_mode)
872 {
873   if (tape.playing && tape.pausing && (toggle_mode & TAPE_TOGGLE_PLAY_PAUSE))
874   {
875     // continue playing in normal mode
876     tape.fast_forward = FALSE;
877     tape.warp_forward = FALSE;
878     tape.deactivate_display = FALSE;
879
880     tape.pause_before_end = FALSE;
881   }
882
883   tape.pausing = !tape.pausing;
884
885   if (tape.single_step && (toggle_mode & TAPE_TOGGLE_MANUAL))
886     tape.single_step = FALSE;
887
888   if (tape.single_step)
889     tape.property_bits |= TAPE_PROPERTY_SINGLE_STEP;
890
891   if (tape.pausing)
892     tape.property_bits |= TAPE_PROPERTY_PAUSE_MODE;
893
894   DrawVideoDisplayCurrentState();
895
896   if (tape.deactivate_display)
897   {
898     if (tape.pausing)
899       TapeDeactivateDisplayOff(game_status == GAME_MODE_PLAYING);
900     else
901       TapeDeactivateDisplayOn();
902   }
903
904   if (tape.quick_resume)
905   {
906     tape.quick_resume = FALSE;
907
908     TapeStopWarpForward();
909     TapeAppendRecording();
910
911     if (!CheckEngineSnapshotSingle())
912       SaveEngineSnapshotSingle();
913
914     // restart step/move snapshots after quick loading tape
915     SaveEngineSnapshotToListInitial();
916
917     // do not map undo/redo buttons after quick loading tape
918     return;
919   }
920
921   if (game_status == GAME_MODE_PLAYING)
922   {
923     if (setup.show_load_save_buttons &&
924         setup.show_undo_redo_buttons &&
925         CheckEngineSnapshotList())
926     {
927       if (tape.pausing)
928         MapUndoRedoButtons();
929       else if (!tape.single_step)
930         MapLoadSaveButtons();
931     }
932
933     ModifyPauseButtons();
934   }
935 }
936
937 void TapeStartPlaying(void)
938 {
939   if (TAPE_IS_EMPTY(tape))
940     return;
941
942   if (!TAPE_IS_STOPPED(tape))
943     TapeStop();
944
945   TapeRewind();
946
947   tape.playing = TRUE;
948
949   DrawVideoDisplay(VIDEO_STATE_PLAY_ON, 0);
950   DrawVideoDisplay(VIDEO_STATE_DATE_ON, tape.date);
951   DrawVideoDisplay(VIDEO_STATE_TIME_ON, 0);
952   DrawVideoDisplay(VIDEO_STATE_FRAME_ON, 0);
953
954   MapTapeWarpButton();
955
956   SetDrawDeactivationMask(REDRAW_NONE);
957   audio.sound_deactivated = FALSE;
958 }
959
960 static void TapeStartGamePlaying(void)
961 {
962   TapeStartPlaying();
963
964   InitGame();
965 }
966
967 void TapeStopPlaying(void)
968 {
969   tape.playing = FALSE;
970   tape.pausing = FALSE;
971
972   if (tape.warp_forward)
973     TapeStopWarpForward();
974
975   DrawVideoDisplay(VIDEO_STATE_PLAY_OFF, 0);
976   MapTapeEjectButton();
977 }
978
979 byte *TapePlayAction(void)
980 {
981   int update_delay = FRAMES_PER_SECOND / 2;
982   boolean update_video_display = (FrameCounter % update_delay == 0);
983   boolean update_draw_label_on = ((FrameCounter / update_delay) % 2 == 1);
984   static byte action[MAX_TAPE_ACTIONS];
985   int i;
986
987   if (!tape.playing || tape.pausing)
988     return NULL;
989
990   if (tape.pause_before_end)  // stop some seconds before end of tape
991   {
992     if (TapeTime > (int)tape.length_seconds - TAPE_PAUSE_SECONDS_BEFORE_DEATH)
993     {
994       TapeStopWarpForward();
995       TapeTogglePause(TAPE_TOGGLE_MANUAL);
996
997       if (setup.autorecord_after_replay)
998         TapeAppendRecording();
999
1000       return NULL;
1001     }
1002   }
1003
1004   if (tape.counter >= tape.length)      // end of tape reached
1005   {
1006     if (!tape.auto_play)
1007     {
1008       TapeStopWarpForward();
1009       TapeTogglePause(TAPE_TOGGLE_MANUAL);
1010
1011       if (setup.autorecord_after_replay)
1012         TapeAppendRecording();
1013     }
1014     else
1015     {
1016       TapeStop();
1017     }
1018
1019     return NULL;
1020   }
1021
1022   if (update_video_display && !tape.deactivate_display)
1023   {
1024     int state = 0;
1025
1026     if (tape.warp_forward)
1027       state |= VIDEO_STATE_WARP(update_draw_label_on);
1028     else if (tape.fast_forward)
1029       state |= VIDEO_STATE_FFWD(update_draw_label_on);
1030
1031     if (tape.pause_before_end)
1032       state |= VIDEO_STATE_PBEND(update_draw_label_on);
1033
1034     // draw labels and symbols separately to prevent labels overlapping symbols
1035     DrawVideoDisplayLabel(state);
1036     DrawVideoDisplaySymbol(state);
1037   }
1038
1039   for (i = 0; i < MAX_TAPE_ACTIONS; i++)
1040     action[i] = tape.pos[tape.counter].action[i];
1041
1042 #if DEBUG_TAPE_WHEN_PLAYING
1043   DebugContinued("", "%05d", FrameCounter);
1044   for (i = 0; i < MAX_TAPE_ACTIONS; i++)
1045     DebugContinued("", "   %08x", action[i]);
1046   DebugContinued("tape:play", "\n");
1047 #endif
1048
1049   tape.set_centered_player = FALSE;
1050   tape.centered_player_nr_next = -999;
1051
1052   if (tape.use_key_actions)
1053   {
1054     for (i = 0; i < MAX_PLAYERS; i++)
1055     {
1056       if (action[i] & KEY_SET_FOCUS)
1057       {
1058         tape.set_centered_player = TRUE;
1059         tape.centered_player_nr_next =
1060           (tape.centered_player_nr_next == -999 ? i : -1);
1061       }
1062
1063       action[i] &= ~KEY_SET_FOCUS;
1064     }
1065   }
1066
1067   tape.delay_played++;
1068   if (tape.delay_played >= tape.pos[tape.counter].delay)
1069   {
1070     tape.counter++;
1071     tape.delay_played = 0;
1072   }
1073
1074   if (tape.auto_play)
1075     PrintTapeReplayProgress(FALSE);
1076
1077   if (options.tape_log_filename != NULL)
1078     WriteTapeLogfile(action);
1079
1080   return action;
1081 }
1082
1083 void TapeStop(void)
1084 {
1085   if (tape.pausing)
1086     TapeTogglePause(TAPE_TOGGLE_MANUAL);
1087
1088   TapeStopRecording();
1089   TapeStopPlaying();
1090
1091   DrawVideoDisplay(VIDEO_STATE_OFF, 0);
1092
1093   if (tape.date && tape.length)
1094   {
1095     DrawVideoDisplay(VIDEO_STATE_DATE_ON, tape.date);
1096     DrawVideoDisplay(VIDEO_STATE_TIME_ON, tape.length_seconds);
1097     DrawVideoDisplay(VIDEO_STATE_FRAME_ON, tape.length_frames);
1098   }
1099 }
1100
1101 static void TapeStopGameOrTape(boolean stop_game)
1102 {
1103   if (score_info_tape_play || (!tape.playing && stop_game))
1104     RequestQuitGame(FALSE);
1105   else
1106     TapeStop();
1107 }
1108
1109 void TapeStopGame(void)
1110 {
1111   if (game_status == GAME_MODE_MAIN)
1112     return;
1113
1114   TapeStopGameOrTape(TRUE);
1115 }
1116
1117 void TapeStopTape(void)
1118 {
1119   TapeStopGameOrTape(FALSE);
1120 }
1121
1122 unsigned int GetTapeLengthFrames(void)
1123 {
1124   unsigned int tape_length_frames = 0;
1125   int i;
1126
1127   if (TAPE_IS_EMPTY(tape))
1128     return 0;
1129
1130   for (i = 0; i < tape.length; i++)
1131     tape_length_frames += tape.pos[i].delay;
1132
1133   return tape_length_frames;
1134 }
1135
1136 unsigned int GetTapeLengthSeconds(void)
1137 {
1138   return (GetTapeLengthFrames() * GAME_FRAME_DELAY / 1000);
1139 }
1140
1141 static float GetTapeLengthSecondsFloat(void)
1142 {
1143   return ((float)GetTapeLengthFrames() * GAME_FRAME_DELAY / 1000);
1144 }
1145
1146 static void TapeStartWarpForward(int mode)
1147 {
1148   tape.fast_forward = (mode & AUTOPLAY_FFWD);
1149   tape.warp_forward = (mode & AUTOPLAY_WARP);
1150   tape.deactivate_display = (mode & AUTOPLAY_WARP_NO_DISPLAY);
1151
1152   tape.pausing = FALSE;
1153
1154   if (tape.deactivate_display)
1155     TapeDeactivateDisplayOn();
1156
1157   DrawVideoDisplayCurrentState();
1158 }
1159
1160 static void TapeStopWarpForward(void)
1161 {
1162   tape.fast_forward = FALSE;
1163   tape.warp_forward = FALSE;
1164   tape.deactivate_display = FALSE;
1165
1166   tape.pause_before_end = FALSE;
1167
1168   TapeDeactivateDisplayOff(game_status == GAME_MODE_PLAYING);
1169
1170   DrawVideoDisplayCurrentState();
1171 }
1172
1173 static void TapeSingleStep(void)
1174 {
1175   if (network.enabled)
1176     return;
1177
1178   if (!tape.pausing)
1179     TapeTogglePause(TAPE_TOGGLE_MANUAL);
1180
1181   tape.single_step = !tape.single_step;
1182
1183   DrawVideoDisplay(VIDEO_STATE_1STEP(tape.single_step), 0);
1184 }
1185
1186 void TapeQuickSave(void)
1187 {
1188   if (game_status == GAME_MODE_MAIN)
1189   {
1190     Request("No game that can be saved!", REQ_CONFIRM);
1191
1192     return;
1193   }
1194
1195   if (game_status != GAME_MODE_PLAYING)
1196     return;
1197
1198   if (tape.recording)
1199     TapeHaltRecording();        // prepare tape for saving on-the-fly
1200
1201   if (TAPE_IS_EMPTY(tape))
1202   {
1203     Request("No tape that can be saved!", REQ_CONFIRM);
1204
1205     return;
1206   }
1207
1208   tape.property_bits |= TAPE_PROPERTY_SNAPSHOT;
1209
1210   if (SaveTapeChecked(tape.level_nr))
1211     SaveEngineSnapshotSingle();
1212 }
1213
1214 void TapeQuickLoad(void)
1215 {
1216   char *filename = getTapeFilename(level_nr);
1217
1218   if (!fileExists(filename))
1219   {
1220     Request("No tape for this level!", REQ_CONFIRM);
1221
1222     return;
1223   }
1224
1225   if (tape.recording && !Request("Stop recording and load tape?",
1226                                  REQ_ASK | REQ_STAY_CLOSED))
1227   {
1228     OpenDoor(DOOR_OPEN_1 | DOOR_COPY_BACK);
1229
1230     return;
1231   }
1232
1233   if (game_status != GAME_MODE_PLAYING && game_status != GAME_MODE_MAIN)
1234     return;
1235
1236   if (CheckEngineSnapshotSingle())
1237   {
1238     TapeStartGamePlaying();
1239
1240     LoadEngineSnapshotSingle();
1241
1242     DrawCompleteVideoDisplay();
1243
1244     tape.playing = TRUE;
1245     tape.pausing = TRUE;
1246
1247     TapeStopWarpForward();
1248     TapeAppendRecording();
1249
1250     // restart step/move snapshots after quick loading tape
1251     SaveEngineSnapshotToListInitial();
1252
1253     if (FrameCounter > 0)
1254       return;
1255   }
1256
1257   TapeStop();
1258   TapeErase();
1259
1260   LoadTape(level_nr);
1261
1262   if (!TAPE_IS_EMPTY(tape))
1263   {
1264     TapeStartGamePlaying();
1265     TapeStartWarpForward(AUTOPLAY_MODE_WARP_NO_DISPLAY);
1266
1267     tape.quick_resume = TRUE;
1268     tape.property_bits |= TAPE_PROPERTY_SNAPSHOT;
1269   }
1270   else  // this should not happen (basically checked above)
1271   {
1272     int reopen_door = (game_status == GAME_MODE_PLAYING ? REQ_REOPEN : 0);
1273
1274     Request("No tape for this level!", REQ_CONFIRM | reopen_door);
1275   }
1276 }
1277
1278 static boolean checkRestartGame(char *message)
1279 {
1280   if (game_status == GAME_MODE_MAIN)
1281     return TRUE;
1282
1283   if (!hasStartedNetworkGame())
1284     return FALSE;
1285
1286   if (level_editor_test_game)
1287     return TRUE;
1288
1289   if (game.all_players_gone)
1290     return TRUE;
1291
1292   if (!setup.ask_on_quit_game)
1293     return TRUE;
1294
1295   if (Request(message, REQ_ASK | REQ_STAY_CLOSED))
1296     return TRUE;
1297
1298   OpenDoor(DOOR_OPEN_1 | DOOR_COPY_BACK);
1299
1300   return FALSE;
1301 }
1302
1303 void TapeRestartGame(void)
1304 {
1305   if (score_info_tape_play)
1306   {
1307     TapeStartGamePlaying();
1308
1309     return;
1310   }
1311
1312   if (!checkRestartGame("Restart game?"))
1313     return;
1314
1315   StartGameActions(network.enabled, setup.autorecord, level.random_seed);
1316 }
1317
1318 void TapeReplayAndPauseBeforeEnd(void)
1319 {
1320   if (score_info_tape_play)
1321     return;
1322
1323   if (TAPE_IS_EMPTY(tape) && !tape.recording)
1324   {
1325     Request("No tape for this level!", REQ_CONFIRM);
1326
1327     return;
1328   }
1329
1330   if (!checkRestartGame("Replay game and pause before end?"))
1331     return;
1332
1333   TapeStop();
1334   TapeStartGamePlaying();
1335   TapeStartWarpForward(AUTOPLAY_MODE_WARP_NO_DISPLAY);
1336
1337   tape.pause_before_end = TRUE;
1338   tape.quick_resume = TRUE;
1339 }
1340
1341 boolean hasSolutionTape(void)
1342 {
1343   boolean tape_file_exists = fileExists(getSolutionTapeFilename(level_nr));
1344   boolean level_has_tape = (level.game_engine_type == GAME_ENGINE_TYPE_SP &&
1345                             level.native_sp_level->demo.is_available);
1346
1347   return (tape_file_exists || level_has_tape);
1348 }
1349
1350 boolean InsertSolutionTape(void)
1351 {
1352   if (!hasSolutionTape())
1353   {
1354     Request("No solution tape for this level!", REQ_CONFIRM);
1355
1356     return FALSE;
1357   }
1358
1359   if (!TAPE_IS_STOPPED(tape))
1360     TapeStop();
1361
1362   // if tape recorder already contains a tape, remove it without asking
1363   TapeErase();
1364
1365   LoadSolutionTape(level_nr);
1366
1367   DrawCompleteVideoDisplay();
1368
1369   if (TAPE_IS_EMPTY(tape))
1370   {
1371     Request("Loading solution tape for this level failed!", REQ_CONFIRM);
1372
1373     return FALSE;
1374   }
1375
1376   return TRUE;
1377 }
1378
1379 boolean PlaySolutionTape(void)
1380 {
1381   if (!InsertSolutionTape())
1382     return FALSE;
1383
1384   TapeStartGamePlaying();
1385
1386   return TRUE;
1387 }
1388
1389 static boolean PlayScoreTape_WaitForDownload(void)
1390 {
1391   DelayCounter download_delay = { 10000 };
1392
1393   ResetDelayCounter(&download_delay);
1394
1395   // wait for score tape to be successfully downloaded (and fail on timeout)
1396   while (!server_scores.tape_downloaded)
1397   {
1398     if (DelayReached(&download_delay))
1399       return FALSE;
1400
1401     UPDATE_BUSY_STATE_NOT_LOADING();
1402
1403     Delay(20);
1404   }
1405
1406   return TRUE;
1407 }
1408
1409 boolean PlayScoreTape(int entry_nr)
1410 {
1411   struct ScoreEntry *entry = &scores.entry[entry_nr];
1412   char *tape_filename =
1413     (entry->id == -1 ?
1414      getScoreTapeFilename(entry->tape_basename, level_nr) :
1415      getScoreCacheTapeFilename(entry->tape_basename, level_nr));
1416   boolean download_tape = (!fileExists(tape_filename));
1417
1418   if (download_tape && entry->id == -1)
1419   {
1420     FadeSkipNextFadeIn();
1421
1422     Request("Cannot find score tape!", REQ_CONFIRM);
1423
1424     return FALSE;
1425   }
1426
1427   server_scores.tape_downloaded = FALSE;
1428
1429   if (download_tape)
1430     ApiGetScoreTapeAsThread(level_nr, entry->id, entry->tape_basename);
1431
1432   SetGameStatus(GAME_MODE_PLAYING);
1433
1434   FadeOut(REDRAW_FIELD);
1435
1436   if (download_tape && !PlayScoreTape_WaitForDownload())
1437   {
1438     SetGameStatus(GAME_MODE_SCOREINFO);
1439     ClearField();
1440
1441     Request("Cannot download score tape from score server!", REQ_CONFIRM);
1442
1443     return FALSE;
1444   }
1445
1446   if (!TAPE_IS_STOPPED(tape))
1447     TapeStop();
1448
1449   // if tape recorder already contains a tape, remove it without asking
1450   TapeErase();
1451
1452   if (entry->id == -1)
1453     LoadScoreTape(entry->tape_basename, level_nr);
1454   else
1455     LoadScoreCacheTape(entry->tape_basename, level_nr);
1456
1457   if (TAPE_IS_EMPTY(tape))
1458   {
1459     SetGameStatus(GAME_MODE_SCOREINFO);
1460     ClearField();
1461
1462     Request("Cannot load score tape for this level!", REQ_CONFIRM);
1463
1464     return FALSE;
1465   }
1466
1467   FadeSkipNextFadeOut();
1468
1469   TapeStartGamePlaying();
1470
1471   score_info_tape_play = TRUE;
1472
1473   return TRUE;
1474 }
1475
1476 static boolean checkTapesFromSameLevel(struct TapeInfo *t1, struct TapeInfo *t2)
1477 {
1478   return (strEqual(t1->level_identifier, t2->level_identifier) &&
1479           t1->level_nr == t2->level_nr);
1480 }
1481
1482 static void CopyTape(struct TapeInfo *tape_from, struct TapeInfo *tape_to)
1483 {
1484   *tape_to = *tape_from;
1485 }
1486
1487 static void SwapTapes(struct TapeInfo *t1, struct TapeInfo *t2)
1488 {
1489   struct TapeInfo tmp = *t1;
1490
1491   *t1 = *t2;
1492   *t2 = tmp;
1493 }
1494
1495 static void CopyTapeToUndoBuffer(void)
1496 {
1497   // copy tapes to undo buffer if large enough (or larger than last undo tape)
1498   // or if the last undo tape is from a different level set or level number
1499   if (tape.length_seconds >= TAPE_MIN_SECONDS_FOR_UNDO_BUFFER ||
1500       tape.length_seconds >= tape_undo_buffer.length_seconds ||
1501       !checkTapesFromSameLevel(&tape, &tape_undo_buffer))
1502   {
1503     CopyTape(&tape, &tape_undo_buffer);
1504   }
1505 }
1506
1507 void UndoTape(void)
1508 {
1509   // only undo tapes from same level set and with same level number
1510   if (!checkTapesFromSameLevel(&tape, &tape_undo_buffer))
1511     return;
1512
1513   if (!TAPE_IS_STOPPED(tape))
1514     TapeStop();
1515
1516   // swap last recorded tape with undo buffer, so undo can be reversed
1517   SwapTapes(&tape, &tape_undo_buffer);
1518
1519   DrawCompleteVideoDisplay();
1520 }
1521
1522 void FixTape_ForceSinglePlayer(void)
1523 {
1524   int i;
1525
1526   /* fix single-player tapes that contain player input for more than one
1527      player (due to a bug in 3.3.1.2 and earlier versions), which results
1528      in playing levels with more than one player in multi-player mode,
1529      even though the tape was originally recorded in single-player mode */
1530
1531   // remove player input actions for all players but the first one
1532   for (i = 1; i < MAX_PLAYERS; i++)
1533     tape.player_participates[i] = FALSE;
1534
1535   tape.changed = TRUE;
1536 }
1537
1538
1539 // ----------------------------------------------------------------------------
1540 // tape autoplay functions
1541 // ----------------------------------------------------------------------------
1542
1543 static TreeInfo *getNextValidAutoPlayEntry(TreeInfo *node)
1544 {
1545   node = getNextValidTreeInfoEntry(node);
1546
1547   while (node && node->is_copy)
1548     node = getNextValidTreeInfoEntry(node);
1549
1550   return node;
1551 }
1552
1553 static TreeInfo *getFirstValidAutoPlayEntry(TreeInfo *node)
1554 {
1555   node = getFirstValidTreeInfoEntry(node);
1556
1557   if (node && node->is_copy)
1558     return getNextValidAutoPlayEntry(node);
1559
1560   return node;
1561 }
1562
1563 static void AutoPlayTapes_SetScoreEntry(int score, int time)
1564 {
1565   char *name = (options.mytapes ? setup.player_name : options.player_name);
1566
1567   // set unique basename for score tape (for uploading to score server)
1568   strcpy(tape.score_tape_basename, getScoreTapeBasename(name));
1569
1570   // store score in first score entry
1571   scores.last_added = 0;
1572
1573   struct ScoreEntry *entry = &scores.entry[scores.last_added];
1574
1575   strncpy(entry->tape_basename, tape.score_tape_basename, MAX_FILENAME_LEN);
1576   strncpy(entry->name, setup.player_name, MAX_PLAYER_NAME_LEN);
1577
1578   entry->score = score;
1579   entry->time = time;
1580
1581   PrintNoLog("- uploading score tape to score server ... ");
1582
1583   server_scores.uploaded = FALSE;
1584 }
1585
1586 static boolean AutoPlayTapes_WaitForUpload(void)
1587 {
1588   DelayCounter upload_delay = { 10000 };
1589
1590   ResetDelayCounter(&upload_delay);
1591
1592   // wait for score tape to be successfully uploaded (and fail on timeout)
1593   while (!server_scores.uploaded)
1594   {
1595     if (DelayReached(&upload_delay))
1596     {
1597       PrintNoLog("\r");
1598       Print("- uploading score tape to score server - TIMEOUT.\n");
1599
1600       if (program.headless)
1601         Fail("cannot upload score tape to score server");
1602
1603       return FALSE;
1604     }
1605
1606     UPDATE_BUSY_STATE();
1607
1608     Delay(20);
1609   }
1610
1611   PrintNoLog("\r");
1612   Print("- uploading score tape to score server - uploaded.\n");
1613
1614   return TRUE;
1615 }
1616
1617 static int AutoPlayTapesExt(boolean initialize)
1618 {
1619   static struct AutoPlayInfo autoplay;
1620   static int num_tapes = 0;
1621   static int patch_nr = 0;
1622   static char *patch_name[] =
1623   {
1624     "original tape",
1625     "em_random_bug",
1626     "screen_34x34",
1627
1628     NULL
1629   };
1630   static int patch_version_first[] =
1631   {
1632     VERSION_IDENT(0,0,0,0),
1633     VERSION_IDENT(3,3,1,0),
1634     VERSION_IDENT(0,0,0,0),
1635
1636     -1
1637   };
1638   static int patch_version_last[] =
1639   {
1640     VERSION_IDENT(9,9,9,9),
1641     VERSION_IDENT(4,0,1,1),
1642     VERSION_IDENT(4,2,2,0),
1643
1644     -1
1645   };
1646   static byte patch_property_bit[] =
1647   {
1648     TAPE_PROPERTY_NONE,
1649     TAPE_PROPERTY_EM_RANDOM_BUG,
1650     TAPE_PROPERTY_NONE,
1651
1652     -1
1653   };
1654   LevelDirTree *leveldir_current_last = leveldir_current;
1655   boolean init_level_set = FALSE;
1656   int level_nr_last = level_nr;
1657   int i;
1658
1659   if (!initialize)
1660   {
1661     if (global.autoplay_mode == AUTOPLAY_MODE_FIX)
1662     {
1663       if (tape.auto_play_level_solved)
1664       {
1665         if (patch_nr > 0)
1666         {
1667           // level solved by patched tape -- save fixed tape
1668           char *filename = getTapeFilename(level_nr);
1669           char *filename_orig = getStringCat2(filename, ".orig");
1670
1671           // create backup from old tape, if not yet existing
1672           if (!fileExists(filename_orig))
1673             rename(filename, filename_orig);
1674
1675           SaveTapeToFilename(filename);
1676
1677           tape.auto_play_level_fixed = TRUE;
1678           autoplay.num_tapes_patched++;
1679         }
1680
1681         // continue with next tape
1682         patch_nr = 0;
1683       }
1684       else if (patch_name[patch_nr + 1] != NULL)
1685       {
1686         // level not solved by patched tape -- continue with next patch
1687         patch_nr++;
1688       }
1689       else
1690       {
1691         // level not solved by any patched tape -- continue with next tape
1692         tape.auto_play_level_not_fixable = TRUE;
1693         patch_nr = 0;
1694       }
1695     }
1696
1697     // just finished auto-playing tape
1698     PrintTapeReplayProgress(TRUE);
1699
1700     if (options.tape_log_filename != NULL)
1701       CloseTapeLogfile();
1702
1703     if (global.autoplay_mode == AUTOPLAY_MODE_SAVE &&
1704         tape.auto_play_level_solved)
1705     {
1706       AutoPlayTapes_SetScoreEntry(game.score_final, game.score_time_final);
1707
1708       if (leveldir_current)
1709       {
1710         // the tape's level set identifier may differ from current level set
1711         strncpy(tape.level_identifier, leveldir_current->identifier,
1712                 MAX_FILENAME_LEN);
1713         tape.level_identifier[MAX_FILENAME_LEN] = '\0';
1714
1715         // the tape's level number may differ from current level number
1716         tape.level_nr = level_nr;
1717       }
1718
1719       // save score tape to upload to server; may be required for some reasons:
1720       // * level set identifier in solution tapes may differ from level set
1721       // * level set identifier is missing (old-style tape without INFO chunk)
1722       // * solution tape may have native format (like Supaplex solution files)
1723
1724       SaveScoreTape(level_nr);
1725       SaveServerScore(level_nr, TRUE);
1726
1727       AutoPlayTapes_WaitForUpload();
1728     }
1729
1730     if (patch_nr == 0)
1731       autoplay.num_levels_played++;
1732
1733     if (tape.auto_play_level_solved)
1734       autoplay.num_levels_solved++;
1735
1736     if (level_nr >= 0 && level_nr < MAX_TAPES_PER_SET)
1737       autoplay.level_failed[level_nr] = !tape.auto_play_level_solved;
1738   }
1739   else
1740   {
1741     if (strEqual(global.autoplay_leveldir, "ALL"))
1742     {
1743       autoplay.all_levelsets = TRUE;
1744
1745       // tape mass-uploading only allowed for private tapes
1746       if (global.autoplay_mode == AUTOPLAY_MODE_UPLOAD)
1747         options.mytapes = TRUE;
1748     }
1749
1750     if ((global.autoplay_mode == AUTOPLAY_MODE_SAVE ||
1751          global.autoplay_mode == AUTOPLAY_MODE_UPLOAD) &&
1752         !options.mytapes &&
1753         options.player_name == NULL)
1754     {
1755       Fail("specify player name when uploading solution tapes");
1756     }
1757
1758     if (global.autoplay_mode != AUTOPLAY_MODE_UPLOAD)
1759       DrawCompleteVideoDisplay();
1760
1761     if (program.headless)
1762     {
1763       audio.sound_enabled = FALSE;
1764       setup.engine_snapshot_mode = getStringCopy(STR_SNAPSHOT_MODE_OFF);
1765     }
1766
1767     if (strSuffix(global.autoplay_leveldir, ".tape"))
1768     {
1769       autoplay.tape_filename = global.autoplay_leveldir;
1770
1771       if (!fileExists(autoplay.tape_filename))
1772         Fail("tape file '%s' does not exist", autoplay.tape_filename);
1773
1774       LoadTapeFromFilename(autoplay.tape_filename);
1775
1776       if (tape.no_valid_file)
1777         Fail("cannot load tape file '%s'", autoplay.tape_filename);
1778
1779       if (tape.no_info_chunk && !options.identifier)
1780         Fail("cannot get levelset from tape file '%s'", autoplay.tape_filename);
1781
1782       if (tape.no_info_chunk && !options.level_nr)
1783         Fail("cannot get level nr from tape file '%s'", autoplay.tape_filename);
1784
1785       global.autoplay_leveldir = tape.level_identifier;
1786
1787       if (options.identifier != NULL)
1788         global.autoplay_leveldir = options.identifier;
1789
1790       if (options.level_nr != NULL)
1791         tape.level_nr = atoi(options.level_nr);
1792
1793       if (tape.level_nr >= 0 && tape.level_nr < MAX_TAPES_PER_SET)
1794         global.autoplay_level[tape.level_nr] = TRUE;
1795
1796       global.autoplay_all = FALSE;
1797       options.mytapes = FALSE;
1798     }
1799
1800     if (autoplay.all_levelsets)
1801     {
1802       // start auto-playing first level set
1803       autoplay.leveldir = getFirstValidAutoPlayEntry(leveldir_first);
1804     }
1805     else
1806     {
1807       // auto-play selected level set
1808       autoplay.leveldir = getTreeInfoFromIdentifier(leveldir_first,
1809                                                     global.autoplay_leveldir);
1810     }
1811
1812     if (autoplay.leveldir == NULL)
1813       Fail("no such level identifier: '%s'", global.autoplay_leveldir);
1814
1815     // only private tapes may be modified
1816     if (global.autoplay_mode == AUTOPLAY_MODE_FIX)
1817       options.mytapes = TRUE;
1818
1819     // set timestamp for batch tape upload
1820     global.autoplay_time = time(NULL);
1821
1822     num_tapes = 0;
1823
1824     init_level_set = TRUE;
1825   }
1826
1827   while (1)
1828   {
1829     if (init_level_set)
1830     {
1831       leveldir_current = autoplay.leveldir;
1832
1833       if (autoplay.leveldir->first_level < 0)
1834         autoplay.leveldir->first_level = 0;
1835       if (autoplay.leveldir->last_level >= MAX_TAPES_PER_SET)
1836         autoplay.leveldir->last_level = MAX_TAPES_PER_SET - 1;
1837
1838       autoplay.level_nr = autoplay.leveldir->first_level;
1839
1840       autoplay.num_levels_played = 0;
1841       autoplay.num_levels_solved = 0;
1842       autoplay.num_tapes_patched = 0;
1843       autoplay.num_tape_missing = 0;
1844
1845       for (i = 0; i < MAX_TAPES_PER_SET; i++)
1846         autoplay.level_failed[i] = FALSE;
1847
1848       PrintTapeReplayHeader(&autoplay);
1849
1850       init_level_set = FALSE;
1851     }
1852
1853     if (autoplay.all_levelsets && global.autoplay_mode == AUTOPLAY_MODE_UPLOAD)
1854     {
1855       boolean skip_levelset = FALSE;
1856
1857       if (!directoryExists(getTapeDir(autoplay.leveldir->subdir)))
1858       {
1859         Print("No tape directory for this level set found -- skipping.\n");
1860
1861         skip_levelset = TRUE;
1862       }
1863
1864       if (CheckTapeDirectoryUploadsComplete(autoplay.leveldir->subdir))
1865       {
1866         Print("All tapes for this level set already uploaded -- skipping.\n");
1867
1868         skip_levelset = TRUE;
1869       }
1870
1871       if (skip_levelset)
1872       {
1873         PrintTapeReplaySummary(&autoplay);
1874
1875         // continue with next level set
1876         autoplay.leveldir = getNextValidAutoPlayEntry(autoplay.leveldir);
1877
1878         // all level sets processed
1879         if (autoplay.leveldir == NULL)
1880           break;
1881
1882         init_level_set = TRUE;
1883
1884         continue;
1885       }
1886     }
1887
1888     if (global.autoplay_mode != AUTOPLAY_MODE_FIX || patch_nr == 0)
1889       level_nr = autoplay.level_nr++;
1890
1891     UPDATE_BUSY_STATE();
1892
1893     // check if all tapes for this level set have been processed
1894     if (level_nr > autoplay.leveldir->last_level)
1895     {
1896       PrintTapeReplaySummary(&autoplay);
1897
1898       if (!autoplay.all_levelsets)
1899         break;
1900
1901       if (global.autoplay_mode == AUTOPLAY_MODE_UPLOAD)
1902         MarkTapeDirectoryUploadsAsComplete(autoplay.leveldir->subdir);
1903
1904       // continue with next level set
1905       autoplay.leveldir = getNextValidAutoPlayEntry(autoplay.leveldir);
1906
1907       // all level sets processed
1908       if (autoplay.leveldir == NULL)
1909         break;
1910
1911       init_level_set = TRUE;
1912
1913       continue;
1914     }
1915
1916     // set patch info (required for progress output)
1917     strcpy(tape_patch_info, "");
1918     if (global.autoplay_mode == AUTOPLAY_MODE_FIX)
1919       snprintf(tape_patch_info, MAX_OUTPUT_LINESIZE, "[%-13s] ",
1920                patch_name[patch_nr]);
1921
1922     if (!global.autoplay_all && !global.autoplay_level[level_nr])
1923       continue;
1924
1925     // speed things up in case of missing private tapes (skip loading level)
1926     if (options.mytapes && !fileExists(getTapeFilename(level_nr)))
1927     {
1928       autoplay.num_tape_missing++;
1929
1930       Print("Tape %03d: (no tape found)\n", level_nr);
1931
1932       continue;
1933     }
1934
1935     TapeErase();
1936     TapeRewind();       // needed to reset "tape.auto_play_level_solved"
1937
1938     LoadLevel(level_nr);
1939
1940     if (level.no_level_file || level.no_valid_file)
1941     {
1942       Print("Tape %03d: (no level found)\n", level_nr);
1943
1944       continue;
1945     }
1946
1947 #if 0
1948     // ACTIVATE THIS FOR LOADING/TESTING OF LEVELS ONLY
1949     Print("Tape %03d: (only testing level)\n", level_nr);
1950     continue;
1951 #endif
1952
1953     if (autoplay.tape_filename)
1954       LoadTapeFromFilename(autoplay.tape_filename);
1955     else if (options.mytapes)
1956       LoadTape(level_nr);
1957     else
1958       LoadSolutionTape(level_nr);
1959
1960     if (tape.no_valid_file)
1961     {
1962       autoplay.num_tape_missing++;
1963
1964       Print("Tape %03d: (no tape found)\n", level_nr);
1965
1966       continue;
1967     }
1968
1969     if (global.autoplay_mode == AUTOPLAY_MODE_FIX)
1970     {
1971       boolean skip_patch = FALSE;
1972
1973       if (tape.engine_version < patch_version_first[patch_nr] ||
1974           tape.engine_version > patch_version_last[patch_nr])
1975       {
1976         Print("Tape %03d %s[%02d:%02d]: (%s %d.%d.%d.%d) - skipped.\n",
1977               level_nr,  tape_patch_info,
1978               tape.length_seconds / 60, tape.length_seconds % 60,
1979               "not suitable for version",
1980               (tape.engine_version / 1000000) % 100,
1981               (tape.engine_version / 10000  ) % 100,
1982               (tape.engine_version / 100    ) % 100,
1983               (tape.engine_version          ) % 100);
1984
1985         skip_patch = TRUE;
1986       }
1987
1988       if (strEqual(patch_name[patch_nr], "screen_34x34") &&
1989           tape.num_participating_players == 1)
1990       {
1991         Print("Tape %03d %s[%02d:%02d]: (%s) - skipped.\n",
1992               level_nr,  tape_patch_info,
1993               tape.length_seconds / 60, tape.length_seconds % 60,
1994               "not suitable for single player tapes");
1995
1996         skip_patch = TRUE;
1997       }
1998
1999       if (skip_patch)
2000       {
2001         if (patch_name[patch_nr + 1] != NULL)
2002         {
2003           // continue with next patch
2004           patch_nr++;
2005         }
2006         else
2007         {
2008           // continue with next tape
2009           patch_nr = 0;
2010         }
2011
2012         continue;
2013       }
2014
2015       if (strEqual(patch_name[patch_nr], "screen_34x34"))
2016       {
2017         tape.scr_fieldx = SCR_FIELDX_DEFAULT * 2;
2018         tape.scr_fieldy = SCR_FIELDY_DEFAULT * 2;
2019       }
2020       else
2021       {
2022         tape.property_bits |= patch_property_bit[patch_nr];
2023       }
2024     }
2025
2026     num_tapes++;
2027
2028     if (global.autoplay_mode == AUTOPLAY_MODE_UPLOAD)
2029     {
2030       boolean use_temporary_tape_file = FALSE;
2031
2032       Print("Tape %03d:\n", level_nr);
2033
2034       AutoPlayTapes_SetScoreEntry(0, 0);
2035
2036       if (autoplay.tape_filename == NULL)
2037       {
2038         autoplay.tape_filename = (options.mytapes ? getTapeFilename(level_nr) :
2039                                   getDefaultSolutionTapeFilename(level_nr));
2040
2041         if (!fileExists(autoplay.tape_filename))
2042         {
2043           // non-standard or incorrect solution tape -- save to temporary file
2044           autoplay.tape_filename = getTemporaryTapeFilename();
2045
2046           SaveTapeToFilename(autoplay.tape_filename);
2047
2048           use_temporary_tape_file = TRUE;
2049         }
2050       }
2051
2052       SaveServerScoreFromFile(level_nr, TRUE, autoplay.tape_filename);
2053
2054       boolean success = AutoPlayTapes_WaitForUpload();
2055
2056       if (use_temporary_tape_file)
2057         unlink(autoplay.tape_filename);
2058
2059       // required for uploading multiple tapes
2060       autoplay.tape_filename = NULL;
2061
2062       if (!success)
2063       {
2064         num_tapes = -num_tapes;
2065
2066         break;
2067       }
2068
2069       continue;
2070     }
2071
2072     InitCounter();
2073
2074     if (options.tape_log_filename != NULL)
2075       OpenTapeLogfile();
2076
2077     TapeStartGamePlaying();
2078     TapeStartWarpForward(global.autoplay_mode);
2079
2080     autoplay.last_level_nr = level_nr;
2081
2082     return num_tapes;
2083   }
2084
2085   if (global.autoplay_mode == AUTOPLAY_MODE_UPLOAD)
2086   {
2087     Print("\n");
2088     PrintLine("=", 79);
2089
2090     if (num_tapes >= 0)
2091       Print("SUMMARY: %d tapes uploaded.\n", num_tapes);
2092     else
2093       Print("SUMMARY: Uploading tapes failed.\n");
2094
2095     PrintLine("=", 79);
2096   }
2097
2098   // clear timestamp for batch tape upload (required after interactive upload)
2099   global.autoplay_time = 0;
2100
2101   // exit if running headless or if visually auto-playing tapes
2102   if (program.headless || global.autoplay_mode != AUTOPLAY_MODE_UPLOAD)
2103     CloseAllAndExit(0);
2104
2105   // when running interactively, restore last selected level set and number
2106   leveldir_current = leveldir_current_last;
2107   level_nr = level_nr_last;
2108
2109   return num_tapes;
2110 }
2111
2112 int AutoPlayTapes(void)
2113 {
2114   return AutoPlayTapesExt(TRUE);
2115 }
2116
2117 int AutoPlayTapesContinue(void)
2118 {
2119   return AutoPlayTapesExt(FALSE);
2120 }
2121
2122
2123 // ----------------------------------------------------------------------------
2124 // tape patch functions
2125 // ----------------------------------------------------------------------------
2126
2127 static boolean PatchTape(struct TapeInfo *tape, char *mode)
2128 {
2129   Print("[%d.%d.%d.%d]: ",
2130         (tape->engine_version / 1000000) % 100,
2131         (tape->engine_version / 10000  ) % 100,
2132         (tape->engine_version / 100    ) % 100,
2133         (tape->engine_version          ) % 100);
2134
2135   if (strEqual(mode, "info"))
2136   {
2137     Print("property bits == 0x%02x\n", tape->property_bits);
2138
2139     return FALSE;
2140   }
2141
2142   boolean unpatch_tape = FALSE;
2143   boolean use_property_bit = FALSE;
2144   byte property_bitmask = 0;
2145
2146   if (strSuffix(mode, ":0") ||
2147       strSuffix(mode, ":off") ||
2148       strSuffix(mode, ":clear"))
2149     unpatch_tape = TRUE;
2150
2151   if (strEqual(mode, "em_random_bug") || strPrefix(mode, "em_random_bug:"))
2152   {
2153     // this bug was introduced in version 3.3.1.0 and fixed in version 4.0.1.2
2154     if (tape->engine_version <  VERSION_IDENT(3,3,1,0) ||
2155         tape->engine_version >= VERSION_IDENT(4,0,1,2))
2156     {
2157       Print("This tape version cannot be patched against EM random bug!\n");
2158
2159       return FALSE;
2160     }
2161
2162     property_bitmask = TAPE_PROPERTY_EM_RANDOM_BUG;
2163
2164     use_property_bit = TRUE;
2165   }
2166   else if (strEqual(mode, "screen_34x34") || strPrefix(mode, "screen_34x34:"))
2167   {
2168     // this bug only affects team mode tapes
2169     if (tape->num_participating_players == 1)
2170     {
2171       Print("Only team mode tapes can be patched against screen size bug!\n");
2172
2173       return FALSE;
2174     }
2175
2176     // this bug (that always existed before) was fixed in version 4.2.2.1
2177     if (tape->engine_version >= VERSION_IDENT(4,2,2,1))
2178     {
2179       Print("This tape version cannot be patched against screen size bug!\n");
2180
2181       return FALSE;
2182     }
2183
2184     int factor = (unpatch_tape ? 1 : 2);
2185     int scr_fieldx_new = SCR_FIELDX_DEFAULT * factor;
2186     int scr_fieldy_new = SCR_FIELDY_DEFAULT * factor;
2187
2188     if (scr_fieldx_new == tape->scr_fieldx &&
2189         scr_fieldy_new == tape->scr_fieldy)
2190     {
2191       Print("Tape already patched for '%s'!\n", mode);
2192
2193       return FALSE;
2194     }
2195
2196     tape->scr_fieldx = scr_fieldx_new;
2197     tape->scr_fieldy = scr_fieldy_new;
2198   }
2199   else
2200   {
2201     Print("Unknown patch mode '%s'!\n", mode);
2202
2203     return FALSE;
2204   }
2205
2206   // patching tapes using property bits may be used for several patch modes
2207   if (use_property_bit)
2208   {
2209     byte property_bits = tape->property_bits;
2210     boolean set_property_bit = (unpatch_tape ? FALSE : TRUE);
2211
2212     if (set_property_bit)
2213       property_bits |= property_bitmask;
2214     else
2215       property_bits &= ~property_bitmask;
2216
2217     if (property_bits == tape->property_bits)
2218     {
2219       Print("Tape already patched for '%s'!\n", mode);
2220
2221       return FALSE;
2222     }
2223
2224     tape->property_bits = property_bits;
2225   }
2226
2227   Print("Patching for '%s' ... ", mode);
2228
2229   return TRUE;
2230 }
2231
2232 void PatchTapes(void)
2233 {
2234   static LevelDirTree *patchtapes_leveldir = NULL;
2235   static int num_tapes_found = 0;
2236   static int num_tapes_patched = 0;
2237   char *mode = global.patchtapes_mode;
2238   int i;
2239
2240   if (strEqual(mode, "help"))
2241   {
2242     PrintLine("=", 79);
2243     Print("Supported patch modes:\n");
2244     Print("- \"em_random_bug\"   - use 64-bit random value bug for EM engine\n");
2245     Print("- \"screen_34x34\"    - force visible playfield size of 34 x 34\n");
2246     PrintLine("-", 79);
2247     Print("Supported modifiers:\n");
2248     Print("- add \":0\", \":off\" or \":clear\" to patch mode to un-patch tape file\n");
2249     PrintLine("=", 79);
2250
2251     CloseAllAndExit(0);
2252   }
2253
2254   patchtapes_leveldir = getTreeInfoFromIdentifier(leveldir_first,
2255                                                   global.patchtapes_leveldir);
2256
2257   if (patchtapes_leveldir == NULL)
2258     Fail("no such level identifier: '%s'", global.patchtapes_leveldir);
2259
2260   leveldir_current = patchtapes_leveldir;
2261
2262   if (patchtapes_leveldir->first_level < 0)
2263     patchtapes_leveldir->first_level = 0;
2264   if (patchtapes_leveldir->last_level >= MAX_TAPES_PER_SET)
2265     patchtapes_leveldir->last_level = MAX_TAPES_PER_SET - 1;
2266
2267   PrintLine("=", 79);
2268   Print("Patching level tapes for patch mode '%s'\n", mode);
2269   PrintLine("-", 79);
2270   Print("Level series identifier: '%s'\n", patchtapes_leveldir->identifier);
2271   Print("Level series name:       '%s'\n", patchtapes_leveldir->name);
2272   Print("Level series author:     '%s'\n", patchtapes_leveldir->author);
2273   Print("Number of levels:        %d\n",   patchtapes_leveldir->levels);
2274   PrintLine("=", 79);
2275   Print("\n");
2276
2277   int first_level = patchtapes_leveldir->first_level;
2278   int last_level = patchtapes_leveldir->last_level;
2279
2280   for (i = first_level; i <= last_level; i++)
2281   {
2282     if (!global.patchtapes_all && !global.patchtapes_level[i])
2283       continue;
2284
2285     Print("Tape %03d: ", i);
2286
2287     TapeErase();
2288     LoadTape(i);
2289
2290     if (tape.no_valid_file)
2291     {
2292       Print("(no tape found)\n");
2293
2294       continue;
2295     }
2296
2297     num_tapes_found++;
2298
2299     if (PatchTape(&tape, mode))
2300     {
2301       char *filename = getTapeFilename(i);
2302       char *filename_orig = getStringCat2(filename, ".orig");
2303
2304       if (!fileExists(filename_orig))
2305         rename(filename, filename_orig);
2306
2307       SaveTapeToFilename(filename);
2308
2309       Print("patched tape saved.\n");
2310
2311       num_tapes_patched++;
2312     }
2313   }
2314
2315   Print("\n");
2316   PrintLine("=", 79);
2317   Print("Number of tapes found: %d\n", num_tapes_found);
2318   Print("Number of tapes patched: %d\n", num_tapes_patched);
2319   PrintLine("=", 79);
2320
2321   CloseAllAndExit(0);
2322 }
2323
2324
2325 // ---------- new tape button stuff -------------------------------------------
2326
2327 static struct
2328 {
2329   int graphic;
2330   struct XY *pos;
2331   int gadget_id;
2332   char *infotext;
2333 } tapebutton_info[NUM_TAPE_BUTTONS] =
2334 {
2335   {
2336     IMG_GFX_TAPE_BUTTON_EJECT,          &tape.button.eject,
2337     TAPE_CTRL_ID_EJECT,                 "eject tape"
2338   },
2339   {
2340     // (same position as "eject" button)
2341     IMG_GFX_TAPE_BUTTON_EXTRA,          &tape.button.eject,
2342     TAPE_CTRL_ID_EXTRA,                 "extra functions"
2343   },
2344   {
2345     IMG_GFX_TAPE_BUTTON_STOP,           &tape.button.stop,
2346     TAPE_CTRL_ID_STOP,                  "stop tape"
2347   },
2348   {
2349     IMG_GFX_TAPE_BUTTON_PAUSE,          &tape.button.pause,
2350     TAPE_CTRL_ID_PAUSE,                 "pause tape"
2351   },
2352   {
2353     IMG_GFX_TAPE_BUTTON_RECORD,         &tape.button.record,
2354     TAPE_CTRL_ID_RECORD,                "record tape"
2355   },
2356   {
2357     IMG_GFX_TAPE_BUTTON_PLAY,           &tape.button.play,
2358     TAPE_CTRL_ID_PLAY,                  "play tape"
2359   },
2360   {
2361     IMG_GFX_TAPE_BUTTON_INSERT_SOLUTION,&tape.button.insert_solution,
2362     TAPE_CTRL_ID_INSERT_SOLUTION,       "insert solution tape"
2363   },
2364   {
2365     IMG_GFX_TAPE_BUTTON_PLAY_SOLUTION,  &tape.button.play_solution,
2366     TAPE_CTRL_ID_PLAY_SOLUTION,         "play solution tape"
2367   }
2368 };
2369
2370 void CreateTapeButtons(void)
2371 {
2372   int i;
2373
2374   for (i = 0; i < NUM_TAPE_BUTTONS; i++)
2375   {
2376     int graphic = tapebutton_info[i].graphic;
2377     struct GraphicInfo *gfx = &graphic_info[graphic];
2378     struct XY *pos = tapebutton_info[i].pos;
2379     struct GadgetInfo *gi;
2380     int gd_x = gfx->src_x;
2381     int gd_y = gfx->src_y;
2382     int gd_xp = gfx->src_x + gfx->pressed_xoffset;
2383     int gd_yp = gfx->src_y + gfx->pressed_yoffset;
2384     int id = i;
2385
2386     gi = CreateGadget(GDI_CUSTOM_ID, id,
2387                       GDI_IMAGE_ID, graphic,
2388                       GDI_INFO_TEXT, tapebutton_info[i].infotext,
2389                       GDI_X, VX + pos->x,
2390                       GDI_Y, VY + pos->y,
2391                       GDI_WIDTH, gfx->width,
2392                       GDI_HEIGHT, gfx->height,
2393                       GDI_TYPE, GD_TYPE_NORMAL_BUTTON,
2394                       GDI_STATE, GD_BUTTON_UNPRESSED,
2395                       GDI_DESIGN_UNPRESSED, gfx->bitmap, gd_x, gd_y,
2396                       GDI_DESIGN_PRESSED, gfx->bitmap, gd_xp, gd_yp,
2397                       GDI_DIRECT_DRAW, FALSE,
2398                       GDI_EVENT_MASK, GD_EVENT_RELEASED,
2399                       GDI_CALLBACK_ACTION, HandleTapeButtons,
2400                       GDI_END);
2401
2402     if (gi == NULL)
2403       Fail("cannot create gadget");
2404
2405     tape_gadget[id] = gi;
2406   }
2407 }
2408
2409 void FreeTapeButtons(void)
2410 {
2411   int i;
2412
2413   for (i = 0; i < NUM_TAPE_BUTTONS; i++)
2414     FreeGadget(tape_gadget[i]);
2415 }
2416
2417 void MapTapeEjectButton(void)
2418 {
2419   UnmapGadget(tape_gadget[TAPE_CTRL_ID_EXTRA]);
2420   MapGadget(tape_gadget[TAPE_CTRL_ID_EJECT]);
2421 }
2422
2423 void MapTapeWarpButton(void)
2424 {
2425   UnmapGadget(tape_gadget[TAPE_CTRL_ID_EJECT]);
2426   MapGadget(tape_gadget[TAPE_CTRL_ID_EXTRA]);
2427 }
2428
2429 void MapTapeButtons(void)
2430 {
2431   int i;
2432
2433   for (i = 0; i < NUM_TAPE_BUTTONS; i++)
2434     if (i != TAPE_CTRL_ID_EXTRA)
2435       MapGadget(tape_gadget[i]);
2436
2437   if (tape.recording || tape.playing)
2438     MapTapeWarpButton();
2439
2440   if (tape.show_game_buttons)
2441     MapGameButtonsOnTape();
2442 }
2443
2444 void UnmapTapeButtons(void)
2445 {
2446   int i;
2447
2448   for (i = 0; i < NUM_TAPE_BUTTONS; i++)
2449     UnmapGadget(tape_gadget[i]);
2450
2451   if (tape.show_game_buttons)
2452     UnmapGameButtonsOnTape();
2453 }
2454
2455 void RedrawTapeButtons(void)
2456 {
2457   int i;
2458
2459   for (i = 0; i < NUM_TAPE_BUTTONS; i++)
2460     RedrawGadget(tape_gadget[i]);
2461
2462   if (tape.show_game_buttons)
2463     RedrawGameButtonsOnTape();
2464 }
2465
2466 void RedrawOrRemapTapeButtons(void)
2467 {
2468   if (tape_gadget[TAPE_CTRL_ID_PLAY]->mapped)
2469   {
2470     // tape buttons already mapped
2471     RedrawTapeButtons();
2472   }
2473   else
2474   {
2475     UnmapTapeButtons();
2476     MapTapeButtons();
2477   }
2478 }
2479
2480 static void HandleTapeButtonsExt(int id)
2481 {
2482   if (game_status != GAME_MODE_MAIN && game_status != GAME_MODE_PLAYING)
2483     return;
2484
2485   switch (id)
2486   {
2487     case TAPE_CTRL_ID_EJECT:
2488       TapeStop();
2489
2490       if (TAPE_IS_EMPTY(tape))
2491       {
2492         LoadTape(level_nr);
2493
2494         if (TAPE_IS_EMPTY(tape))
2495           Request("No tape for this level!", REQ_CONFIRM);
2496       }
2497       else
2498       {
2499         if (tape.changed)
2500           SaveTapeChecked(level_nr);
2501
2502         TapeErase();
2503       }
2504
2505       DrawCompleteVideoDisplay();
2506       break;
2507
2508     case TAPE_CTRL_ID_EXTRA:
2509       if (tape.playing)
2510       {
2511         tape.pause_before_end = !tape.pause_before_end;
2512
2513         DrawVideoDisplayCurrentState();
2514       }
2515       else if (tape.recording)
2516       {
2517         TapeSingleStep();
2518       }
2519
2520       break;
2521
2522     case TAPE_CTRL_ID_STOP:
2523       TapeStopTape();
2524
2525       break;
2526
2527     case TAPE_CTRL_ID_PAUSE:
2528       TapeTogglePause(TAPE_TOGGLE_MANUAL);
2529
2530       break;
2531
2532     case TAPE_CTRL_ID_RECORD:
2533       if (TAPE_IS_STOPPED(tape))
2534       {
2535         TapeStartGameRecording();
2536       }
2537       else if (tape.pausing)
2538       {
2539         if (tape.playing)                       // PLAY -> PAUSE -> RECORD
2540           TapeAppendRecording();
2541         else
2542           TapeTogglePause(TAPE_TOGGLE_MANUAL);
2543       }
2544
2545       break;
2546
2547     case TAPE_CTRL_ID_PLAY:
2548       if (tape.recording && tape.pausing)       // PAUSE -> RECORD
2549       {
2550         // ("TAPE_IS_EMPTY(tape)" is TRUE here -- probably fix this)
2551
2552         TapeTogglePause(TAPE_TOGGLE_MANUAL);
2553       }
2554
2555       if (TAPE_IS_EMPTY(tape))
2556         break;
2557
2558       if (TAPE_IS_STOPPED(tape))
2559       {
2560         TapeStartGamePlaying();
2561       }
2562       else if (tape.playing)
2563       {
2564         if (tape.pausing)                       // PAUSE -> PLAY
2565         {
2566           TapeTogglePause(TAPE_TOGGLE_MANUAL | TAPE_TOGGLE_PLAY_PAUSE);
2567         }
2568         else if (!tape.fast_forward)            // PLAY -> FFWD
2569         {
2570           tape.fast_forward = TRUE;
2571         }
2572         else if (!tape.warp_forward)            // FFWD -> WARP
2573         {
2574           tape.warp_forward = TRUE;
2575         }
2576         else if (!tape.deactivate_display)      // WARP -> WARP BLIND
2577         {
2578           tape.deactivate_display = TRUE;
2579
2580           TapeDeactivateDisplayOn();
2581         }
2582         else                                    // WARP BLIND -> PLAY
2583         {
2584           tape.fast_forward = FALSE;
2585           tape.warp_forward = FALSE;
2586           tape.deactivate_display = FALSE;
2587
2588           TapeDeactivateDisplayOff(game_status == GAME_MODE_PLAYING);
2589         }
2590
2591         DrawVideoDisplayCurrentState();
2592       }
2593
2594       break;
2595
2596     case TAPE_CTRL_ID_INSERT_SOLUTION:
2597       InsertSolutionTape();
2598
2599       break;
2600
2601     case TAPE_CTRL_ID_PLAY_SOLUTION:
2602       PlaySolutionTape();
2603
2604       break;
2605
2606     default:
2607       break;
2608   }
2609 }
2610
2611 static void HandleTapeButtons(struct GadgetInfo *gi)
2612 {
2613   HandleTapeButtonsExt(gi->custom_id);
2614 }
2615
2616 void HandleTapeButtonKeys(Key key)
2617 {
2618   boolean eject_button_is_active = TAPE_IS_STOPPED(tape);
2619   boolean extra_button_is_active = !eject_button_is_active;
2620
2621   if (key == setup.shortcut.tape_eject && eject_button_is_active)
2622     HandleTapeButtonsExt(TAPE_CTRL_ID_EJECT);
2623   else if (key == setup.shortcut.tape_extra && extra_button_is_active)
2624     HandleTapeButtonsExt(TAPE_CTRL_ID_EXTRA);
2625   else if (key == setup.shortcut.tape_stop)
2626     HandleTapeButtonsExt(TAPE_CTRL_ID_STOP);
2627   else if (key == setup.shortcut.tape_pause)
2628     HandleTapeButtonsExt(TAPE_CTRL_ID_PAUSE);
2629   else if (key == setup.shortcut.tape_record)
2630     HandleTapeButtonsExt(TAPE_CTRL_ID_RECORD);
2631   else if (key == setup.shortcut.tape_play)
2632     HandleTapeButtonsExt(TAPE_CTRL_ID_PLAY);
2633 }