X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;ds=sidebyside;f=src%2Ffiles.c;h=cfce89f8b639a74d7d16f5d8fb8a6d4a1fff3de1;hb=ed22fcb49eb39c34da82c51f44cbe64ca5b409c4;hp=c8580105cfcef25a13b193902a9c8fa8d0732c9c;hpb=564a563aee2c9fdb37116d41342b36eda63c1f6a;p=rocksndiamonds.git

diff --git a/src/files.c b/src/files.c
index c8580105..cfce89f8 100644
--- a/src/files.c
+++ b/src/files.c
@@ -29,7 +29,7 @@
 #define CHUNK_SIZE_NONE		-1	/* do not write chunk size    */
 #define FILE_VERS_CHUNK_SIZE	8	/* size of file version chunk */
 #define LEVEL_HEADER_SIZE	80	/* size of level file header  */
-#define LEVEL_HEADER_UNUSED	8	/* unused level header bytes  */
+#define LEVEL_HEADER_UNUSED	3	/* unused level header bytes  */
 #define LEVEL_CHUNK_CNT2_SIZE	160	/* size of level CNT2 chunk   */
 #define LEVEL_CHUNK_CNT2_UNUSED	11	/* unused CNT2 chunk bytes    */
 #define LEVEL_CHUNK_CNT3_HEADER	16	/* size of level CNT3 header  */
@@ -92,7 +92,10 @@ void setElementChangeInfoToDefaults(struct ElementChangeInfo *change)
   change->can_change = FALSE;
 
   change->events = CE_BITMASK_DEFAULT;
-  change->sides = CH_SIDE_ANY;
+
+  change->trigger_player = CH_PLAYER_ANY;
+  change->trigger_side = CH_SIDE_ANY;
+  change->trigger_page = CH_PAGE_ANY;
 
   change->target_element = EL_EMPTY_SPACE;
 
@@ -103,15 +106,15 @@ void setElementChangeInfoToDefaults(struct ElementChangeInfo *change)
   change->trigger_element = EL_EMPTY_SPACE;
 
   change->explode = FALSE;
-  change->use_content = FALSE;
-  change->only_complete = FALSE;
-  change->use_random_change = FALSE;
-  change->random = 100;
-  change->power = CP_NON_DESTRUCTIVE;
+  change->use_target_content = FALSE;
+  change->only_if_complete = FALSE;
+  change->use_random_replace = FALSE;
+  change->random_percentage = 100;
+  change->replace_when = CP_WHEN_EMPTY;
 
   for (x = 0; x < 3; x++)
     for (y = 0; y < 3; y++)
-      change->content[x][y] = EL_EMPTY_SPACE;
+      change->target_content[x][y] = EL_EMPTY_SPACE;
 
   change->direct_action = 0;
   change->other_action = 0;
@@ -123,6 +126,8 @@ void setElementChangeInfoToDefaults(struct ElementChangeInfo *change)
 
 static void setLevelInfoToDefaults(struct LevelInfo *level)
 {
+  static boolean clipboard_elements_initialized = FALSE;
+
   int i, j, x, y;
 
   level->file_version = FILE_VERSION_ACTUAL;
@@ -156,10 +161,13 @@ static void setLevelInfoToDefaults(struct LevelInfo *level)
   level->em_slippery_gems = FALSE;
   level->block_last_field = FALSE;
   level->sp_block_last_field = TRUE;
+  level->instant_relocation = FALSE;
 
-  level->use_spring_bug = FALSE;
+  level->can_move_into_acid_bits = ~0;	/* everything can move into acid */
+  level->dont_collide_with_bits = ~0;	/* always deadly when colliding  */
 
-  level->can_move_into_acid = ~0;	/* everything can move into acid */
+  level->use_spring_bug = FALSE;
+  level->use_step_counter = FALSE;
 
   level->use_custom_template = FALSE;
 
@@ -195,10 +203,16 @@ static void setLevelInfoToDefaults(struct LevelInfo *level)
   {
     int element = i;
 
+    /* never initialize clipboard elements after the very first time */
+    if (IS_CLIPBOARD_ELEMENT(element) && clipboard_elements_initialized)
+      continue;
+
     setElementChangePages(&element_info[element], 1);
     setElementChangeInfoToDefaults(element_info[element].change);
 
-    if (IS_CUSTOM_ELEMENT(element) || IS_GROUP_ELEMENT(element))
+    if (IS_CUSTOM_ELEMENT(element) ||
+	IS_GROUP_ELEMENT(element) ||
+	IS_INTERNAL_ELEMENT(element))
     {
       for (j = 0; j < MAX_ELEMENT_NAME_LEN + 1; j++)
 	element_info[element].description[j] = '\0';
@@ -214,7 +228,8 @@ static void setLevelInfoToDefaults(struct LevelInfo *level)
       element_info[element].gfx_element = EL_EMPTY_SPACE;
     }
 
-    if (IS_CUSTOM_ELEMENT(element))
+    if (IS_CUSTOM_ELEMENT(element) ||
+	IS_INTERNAL_ELEMENT(element))
     {
       element_info[element].access_direction = MV_ALL_DIRECTIONS;
 
@@ -223,6 +238,8 @@ static void setLevelInfoToDefaults(struct LevelInfo *level)
 
       element_info[element].push_delay_fixed = -1;	/* initialize later */
       element_info[element].push_delay_random = -1;	/* initialize later */
+      element_info[element].drop_delay_fixed = 0;
+      element_info[element].drop_delay_random = 0;
       element_info[element].move_delay_fixed = 0;
       element_info[element].move_delay_random = 0;
 
@@ -235,7 +252,7 @@ static void setLevelInfoToDefaults(struct LevelInfo *level)
 
       element_info[element].slippery_type = SLIPPERY_ANY_RANDOM;
 
-      element_info[element].explosion_delay = 18;
+      element_info[element].explosion_delay = 16;
       element_info[element].ignition_delay = 8;
 
       for (x = 0; x < 3; x++)
@@ -265,7 +282,9 @@ static void setLevelInfoToDefaults(struct LevelInfo *level)
 
       element_info[element].modified_settings = FALSE;
     }
-    else if (IS_GROUP_ELEMENT(element) || element == EL_INTERNAL_EDITOR)
+
+    if (IS_GROUP_ELEMENT(element) ||
+	IS_INTERNAL_ELEMENT(element))
     {
       /* initialize memory for list of elements in group */
       if (element_info[element].group == NULL)
@@ -282,9 +301,11 @@ static void setLevelInfoToDefaults(struct LevelInfo *level)
     }
   }
 
+  clipboard_elements_initialized = TRUE;
+
   BorderElement = EL_STEELWALL;
 
-  level->no_level_file = FALSE;
+  level->no_valid_file = FALSE;
 
   if (leveldir_current == NULL)		/* only when dumping level */
     return;
@@ -544,7 +565,7 @@ static struct LevelFileInfo *getLevelFileInfo(int nr)
 
 int getMappedElement(int element)
 {
-  /* map some (historic, now obsolete) elements */
+  /* remap some (historic, now obsolete) elements */
 
 #if 1
   switch (element)
@@ -605,6 +626,32 @@ int getMappedElement(int element)
   return element;
 }
 
+int getMappedElementByVersion(int element, int game_version)
+{
+  /* remap some elements due to certain game version */
+
+  if (game_version <= VERSION_IDENT(2,2,0,0))
+  {
+    /* map game font elements */
+    element = (element == EL_CHAR('[')  ? EL_CHAR_AUMLAUT :
+	       element == EL_CHAR('\\') ? EL_CHAR_OUMLAUT :
+	       element == EL_CHAR(']')  ? EL_CHAR_UUMLAUT :
+	       element == EL_CHAR('^')  ? EL_CHAR_COPYRIGHT : element);
+  }
+
+  if (game_version < VERSION_IDENT(3,0,0,0))
+  {
+    /* map Supaplex gravity tube elements */
+    element = (element == EL_SP_GRAVITY_PORT_LEFT  ? EL_SP_PORT_LEFT  :
+	       element == EL_SP_GRAVITY_PORT_RIGHT ? EL_SP_PORT_RIGHT :
+	       element == EL_SP_GRAVITY_PORT_UP    ? EL_SP_PORT_UP    :
+	       element == EL_SP_GRAVITY_PORT_DOWN  ? EL_SP_PORT_DOWN  :
+	       element);
+  }
+
+  return element;
+}
+
 static int LoadLevel_VERS(FILE *file, int chunk_size, struct LevelInfo *level)
 {
   level->file_version = getFileVersion(file);
@@ -649,10 +696,13 @@ static int LoadLevel_HEAD(FILE *file, int chunk_size, struct LevelInfo *level)
 
   level->block_last_field	= (getFile8Bit(file) == 1 ? TRUE : FALSE);
   level->sp_block_last_field	= (getFile8Bit(file) == 1 ? TRUE : FALSE);
+  level->can_move_into_acid_bits = getFile32BitBE(file);
+  level->dont_collide_with_bits = getFile8Bit(file);
 
   level->use_spring_bug		= (getFile8Bit(file) == 1 ? TRUE : FALSE);
+  level->use_step_counter	= (getFile8Bit(file) == 1 ? TRUE : FALSE);
 
-  level->can_move_into_acid	= getFile16BitBE(file);
+  level->instant_relocation	= (getFile8Bit(file) == 1 ? TRUE : FALSE);
 
   ReadUnusedBytesFromFile(file, LEVEL_HEADER_UNUSED);
 
@@ -933,16 +983,16 @@ static int LoadLevel_CUS3(FILE *file, int chunk_size, struct LevelInfo *level)
       getMappedElement(getFile16BitBE(file));
 
     element_info[element].change->explode = getFile8Bit(file);
-    element_info[element].change->use_content = getFile8Bit(file);
-    element_info[element].change->only_complete = getFile8Bit(file);
-    element_info[element].change->use_random_change = getFile8Bit(file);
+    element_info[element].change->use_target_content = getFile8Bit(file);
+    element_info[element].change->only_if_complete = getFile8Bit(file);
+    element_info[element].change->use_random_replace = getFile8Bit(file);
 
-    element_info[element].change->random = getFile8Bit(file);
-    element_info[element].change->power = getFile8Bit(file);
+    element_info[element].change->random_percentage = getFile8Bit(file);
+    element_info[element].change->replace_when = getFile8Bit(file);
 
     for (y = 0; y < 3; y++)
       for (x = 0; x < 3; x++)
-	element_info[element].change->content[x][y] =
+	element_info[element].change->target_content[x][y] =
 	  getMappedElement(getFile16BitBE(file));
 
     element_info[element].slippery_type = getFile8Bit(file);
@@ -1003,8 +1053,10 @@ static int LoadLevel_CUS4(FILE *file, int chunk_size, struct LevelInfo *level)
   ei->collect_score = getFile8Bit(file);
   ei->collect_count = getFile8Bit(file);
 
-  ei->push_delay_fixed = getFile16BitBE(file);
-  ei->push_delay_random = getFile16BitBE(file);
+  ei->drop_delay_fixed = getFile8Bit(file);
+  ei->push_delay_fixed = getFile8Bit(file);
+  ei->drop_delay_random = getFile8Bit(file);
+  ei->push_delay_random = getFile8Bit(file);
   ei->move_delay_fixed = getFile16BitBE(file);
   ei->move_delay_random = getFile16BitBE(file);
 
@@ -1056,26 +1108,36 @@ static int LoadLevel_CUS4(FILE *file, int chunk_size, struct LevelInfo *level)
     change->trigger_element = getMappedElement(getFile16BitBE(file));
 
     change->explode = getFile8Bit(file);
-    change->use_content = getFile8Bit(file);
-    change->only_complete = getFile8Bit(file);
-    change->use_random_change = getFile8Bit(file);
+    change->use_target_content = getFile8Bit(file);
+    change->only_if_complete = getFile8Bit(file);
+    change->use_random_replace = getFile8Bit(file);
 
-    change->random = getFile8Bit(file);
-    change->power = getFile8Bit(file);
+    change->random_percentage = getFile8Bit(file);
+    change->replace_when = getFile8Bit(file);
 
     for (y = 0; y < 3; y++)
       for (x = 0; x < 3; x++)
-	change->content[x][y] = getMappedElement(getFile16BitBE(file));
+	change->target_content[x][y] = getMappedElement(getFile16BitBE(file));
 
     change->can_change = getFile8Bit(file);
 
-    change->sides = getFile8Bit(file);
+    change->trigger_side = getFile8Bit(file);
+
+#if 1
+    change->trigger_player = getFile8Bit(file);
+    change->trigger_page = getFile8Bit(file);
+
+    change->trigger_page = (change->trigger_page == CH_PAGE_ANY_FILE ?
+			    CH_PAGE_ANY : (1 << change->trigger_page));
+
+    /* some free bytes for future change property values and padding */
+    ReadUnusedBytesFromFile(file, 6);
 
-    if (change->sides == CH_SIDE_NONE)	/* correct empty sides field */
-      change->sides = CH_SIDE_ANY;
+#else
 
     /* some free bytes for future change property values and padding */
     ReadUnusedBytesFromFile(file, 8);
+#endif
   }
 
   /* mark this custom element as modified */
@@ -1139,7 +1201,7 @@ static void LoadLevelFromFileInfo_RND(struct LevelInfo *level,
 
   if (!(file = fopen(filename, MODE_READ)))
   {
-    level->no_level_file = TRUE;
+    level->no_valid_file = TRUE;
 
     if (level != &level_template)
       Error(ERR_WARN, "cannot read level '%s' -- using empty level", filename);
@@ -1155,6 +1217,8 @@ static void LoadLevelFromFileInfo_RND(struct LevelInfo *level,
     getFileChunkBE(file, chunk_name, NULL);
     if (strcmp(chunk_name, "CAVE") != 0)
     {
+      level->no_valid_file = TRUE;
+
       Error(ERR_WARN, "unknown format of level file '%s'", filename);
       fclose(file);
       return;
@@ -1169,6 +1233,8 @@ static void LoadLevelFromFileInfo_RND(struct LevelInfo *level,
 
     if (!checkCookieString(cookie, LEVEL_COOKIE_TMPL))
     {
+      level->no_valid_file = TRUE;
+
       Error(ERR_WARN, "unknown format of level file '%s'", filename);
       fclose(file);
       return;
@@ -1176,6 +1242,8 @@ static void LoadLevelFromFileInfo_RND(struct LevelInfo *level,
 
     if ((level->file_version = getFileVersionFromCookieString(cookie)) == -1)
     {
+      level->no_valid_file = TRUE;
+
       Error(ERR_WARN, "unsupported version of level file '%s'", filename);
       fclose(file);
       return;
@@ -1589,7 +1657,7 @@ static void LoadLevelFromFileInfo_EM(struct LevelInfo *level,
 
   if (!(file = fopen(filename, MODE_READ)))
   {
-    level->no_level_file = TRUE;
+    level->no_valid_file = TRUE;
 
     Error(ERR_WARN, "cannot read level '%s' -- using empty level", filename);
 
@@ -1781,7 +1849,7 @@ static void LoadLevelFromFileInfo_SP(struct LevelInfo *level,
 
   if (!(file = fopen(filename, MODE_READ)))
   {
-    level->no_level_file = TRUE;
+    level->no_valid_file = TRUE;
 
     Error(ERR_WARN, "cannot read level '%s' -- using empty level", filename);
 
@@ -1791,7 +1859,7 @@ static void LoadLevelFromFileInfo_SP(struct LevelInfo *level,
   /* position file stream to the requested level inside the level package */
   if (fseek(file, nr * SP_LEVEL_SIZE, SEEK_SET) != 0)
   {
-    level->no_level_file = TRUE;
+    level->no_valid_file = TRUE;
 
     Error(ERR_WARN, "cannot fseek level '%s' -- using empty level", filename);
 
@@ -2040,11 +2108,12 @@ static void LoadLevel_InitVersion(struct LevelInfo *level, char *filename)
     if (level->game_version < VERSION_IDENT(2,2,0,0))
       level->use_spring_bug = TRUE;
 
-    if (level->game_version < VERSION_IDENT(3,0,9,0))
+    if (level->game_version < VERSION_IDENT(3,1,0,0))
     {
-      int i;
+      int i, j;
 
-      level->can_move_into_acid = 0;	/* nothing can move into acid */
+      level->can_move_into_acid_bits = 0; /* nothing can move into acid */
+      level->dont_collide_with_bits = 0; /* nothing is deadly when colliding */
 
       setMoveIntoAcidProperty(level, EL_ROBOT,     TRUE);
       setMoveIntoAcidProperty(level, EL_SATELLITE, TRUE);
@@ -2053,6 +2122,20 @@ static void LoadLevel_InitVersion(struct LevelInfo *level, char *filename)
 
       for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
 	SET_PROPERTY(EL_CUSTOM_START + i, EP_CAN_MOVE_INTO_ACID, TRUE);
+
+      for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+      {
+	int element = EL_CUSTOM_START + i;
+	struct ElementInfo *ei = &element_info[element];
+
+	for (j = 0; j < ei->num_change_pages; j++)
+	{
+	  struct ElementChangeInfo *change = &ei->change_page[j];
+
+	  change->trigger_player = CH_PLAYER_ANY;
+	  change->trigger_page = CH_PAGE_ANY;
+	}
+      }
     }
   }
   else
@@ -2099,7 +2182,7 @@ static void LoadLevel_InitVersion(struct LevelInfo *level, char *filename)
 
 static void LoadLevel_InitElements(struct LevelInfo *level, char *filename)
 {
-  int i, j;
+  int i, j, x, y;
 
   /* map custom element change events that have changed in newer versions
      (these following values were accidentally changed in version 3.0.1) */
@@ -2158,13 +2241,22 @@ static void LoadLevel_InitElements(struct LevelInfo *level, char *filename)
     }
   }
 
-  /* correct field access direction (for old levels without this option) */
+  /* correct custom element values (for old levels without these options) */
   for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
   {
     int element = EL_CUSTOM_START + i;
+    struct ElementInfo *ei = &element_info[element];
 
-    if (element_info[element].access_direction == MV_NO_MOVING)
-      element_info[element].access_direction = MV_ALL_DIRECTIONS;
+    if (ei->access_direction == MV_NO_MOVING)
+      ei->access_direction = MV_ALL_DIRECTIONS;
+
+    for (j = 0; j < ei->num_change_pages; j++)
+    {
+      struct ElementChangeInfo *change = &ei->change_page[j];
+
+      if (change->trigger_side == CH_SIDE_NONE)
+	change->trigger_side = CH_SIDE_ANY;
+    }
   }
 
 #if 0
@@ -2192,6 +2284,16 @@ static void LoadLevel_InitElements(struct LevelInfo *level, char *filename)
   }
 #endif
 
+  /* map elements that have changed in newer versions */
+  level->amoeba_content = getMappedElementByVersion(level->amoeba_content,
+						    level->game_version);
+  for (i = 0; i < MAX_ELEMENT_CONTENTS; i++)
+    for (x = 0; x < 3; x++)
+      for (y = 0; y < 3; y++)
+	level->yamyam_content[i][x][y] =
+	  getMappedElementByVersion(level->yamyam_content[i][x][y],
+				    level->game_version);
+
   /* initialize element properties for level editor etc. */
   InitElementPropertiesEngine(level->game_version);
 }
@@ -2207,6 +2309,9 @@ static void LoadLevel_InitPlayfield(struct LevelInfo *level, char *filename)
     {
       int element = level->field[x][y];
 
+#if 1
+      element = getMappedElementByVersion(element, level->game_version);
+#else
       if (level->game_version <= VERSION_IDENT(2,2,0,0))
       {
 	/* map game font elements */
@@ -2225,6 +2330,7 @@ static void LoadLevel_InitPlayfield(struct LevelInfo *level, char *filename)
 		   element == EL_SP_GRAVITY_PORT_DOWN  ? EL_SP_PORT_DOWN  :
 		   element);
       }
+#endif
 
       level->field[x][y] = element;
     }
@@ -2328,10 +2434,13 @@ static void SaveLevel_HEAD(FILE *file, struct LevelInfo *level)
 
   putFile8Bit(file, (level->block_last_field ? 1 : 0));
   putFile8Bit(file, (level->sp_block_last_field ? 1 : 0));
+  putFile32BitBE(file, level->can_move_into_acid_bits);
+  putFile8Bit(file, level->dont_collide_with_bits);
 
   putFile8Bit(file, (level->use_spring_bug ? 1 : 0));
+  putFile8Bit(file, (level->use_step_counter ? 1 : 0));
 
-  putFile16BitBE(file, level->can_move_into_acid);
+  putFile8Bit(file, (level->instant_relocation ? 1 : 0));
 
   WriteUnusedBytesToFile(file, LEVEL_HEADER_UNUSED);
 }
@@ -2558,12 +2667,12 @@ static void SaveLevel_CUS3(FILE *file, struct LevelInfo *level,
 	putFile16BitBE(file, element_info[element].change->trigger_element);
 
 	putFile8Bit(file, element_info[element].change->explode);
-	putFile8Bit(file, element_info[element].change->use_content);
-	putFile8Bit(file, element_info[element].change->only_complete);
-	putFile8Bit(file, element_info[element].change->use_random_change);
+	putFile8Bit(file, element_info[element].change->use_target_content);
+	putFile8Bit(file, element_info[element].change->only_if_complete);
+	putFile8Bit(file, element_info[element].change->use_random_replace);
 
-	putFile8Bit(file, element_info[element].change->random);
-	putFile8Bit(file, element_info[element].change->power);
+	putFile8Bit(file, element_info[element].change->random_percentage);
+	putFile8Bit(file, element_info[element].change->replace_when);
 
 	for (y = 0; y < 3; y++)
 	  for (x = 0; x < 3; x++)
@@ -2610,8 +2719,10 @@ static void SaveLevel_CUS4(FILE *file, struct LevelInfo *level, int element)
   putFile8Bit(file, ei->collect_score);
   putFile8Bit(file, ei->collect_count);
 
-  putFile16BitBE(file, ei->push_delay_fixed);
-  putFile16BitBE(file, ei->push_delay_random);
+  putFile8Bit(file, ei->drop_delay_fixed);
+  putFile8Bit(file, ei->push_delay_fixed);
+  putFile8Bit(file, ei->drop_delay_random);
+  putFile8Bit(file, ei->push_delay_random);
   putFile16BitBE(file, ei->move_delay_fixed);
   putFile16BitBE(file, ei->move_delay_random);
 
@@ -2658,23 +2769,34 @@ static void SaveLevel_CUS4(FILE *file, struct LevelInfo *level, int element)
     putFile16BitBE(file, change->trigger_element);
 
     putFile8Bit(file, change->explode);
-    putFile8Bit(file, change->use_content);
-    putFile8Bit(file, change->only_complete);
-    putFile8Bit(file, change->use_random_change);
+    putFile8Bit(file, change->use_target_content);
+    putFile8Bit(file, change->only_if_complete);
+    putFile8Bit(file, change->use_random_replace);
 
-    putFile8Bit(file, change->random);
-    putFile8Bit(file, change->power);
+    putFile8Bit(file, change->random_percentage);
+    putFile8Bit(file, change->replace_when);
 
     for (y = 0; y < 3; y++)
       for (x = 0; x < 3; x++)
-	putFile16BitBE(file, change->content[x][y]);
+	putFile16BitBE(file, change->target_content[x][y]);
 
     putFile8Bit(file, change->can_change);
 
-    putFile8Bit(file, change->sides);
+    putFile8Bit(file, change->trigger_side);
+
+#if 1
+    putFile8Bit(file, change->trigger_player);
+    putFile8Bit(file, (change->trigger_page == CH_PAGE_ANY ? CH_PAGE_ANY_FILE :
+		       log_2(change->trigger_page)));
+
+    /* some free bytes for future change property values and padding */
+    WriteUnusedBytesToFile(file, 6);
+
+#else
 
     /* some free bytes for future change property values and padding */
     WriteUnusedBytesToFile(file, 8);
+#endif
   }
 }
 
@@ -2835,6 +2957,13 @@ void SaveLevelTemplate()
 
 void DumpLevel(struct LevelInfo *level)
 {
+  if (level->no_valid_file)
+  {
+    Error(ERR_WARN, "cannot dump -- no valid level file found");
+
+    return;
+  }
+
   printf_line("-", 79);
   printf("Level xxx (file version %08d, game version %08d)\n",
 	 level->file_version, level->game_version);
@@ -2861,6 +2990,7 @@ void DumpLevel(struct LevelInfo *level)
   printf("Player blocks last field:    %s\n", (level->block_last_field ? "yes" : "no"));
   printf("SP player blocks last field: %s\n", (level->sp_block_last_field ? "yes" : "no"));
   printf("use spring bug: %s\n", (level->use_spring_bug ? "yes" : "no"));
+  printf("use step counter: %s\n", (level->use_step_counter ? "yes" : "no"));
 
   printf_line("-", 79);
 }
@@ -2892,6 +3022,8 @@ static void setTapeInfoToDefaults()
   tape.recording = FALSE;
   tape.playing = FALSE;
   tape.pausing = FALSE;
+
+  tape.no_valid_file = FALSE;
 }
 
 static int LoadTape_VERS(FILE *file, int chunk_size, struct TapeInfo *tape)
@@ -3056,7 +3188,15 @@ void LoadTapeFromFilename(char *filename)
   setTapeInfoToDefaults();
 
   if (!(file = fopen(filename, MODE_READ)))
+  {
+    tape.no_valid_file = TRUE;
+
+#if 0
+    Error(ERR_WARN, "cannot read tape '%s' -- using empty tape", filename);
+#endif
+
     return;
+  }
 
   getFileChunkBE(file, chunk_name, NULL);
   if (strcmp(chunk_name, "RND1") == 0)
@@ -3066,6 +3206,8 @@ void LoadTapeFromFilename(char *filename)
     getFileChunkBE(file, chunk_name, NULL);
     if (strcmp(chunk_name, "TAPE") != 0)
     {
+      tape.no_valid_file = TRUE;
+
       Error(ERR_WARN, "unknown format of tape file '%s'", filename);
       fclose(file);
       return;
@@ -3080,6 +3222,8 @@ void LoadTapeFromFilename(char *filename)
 
     if (!checkCookieString(cookie, TAPE_COOKIE_TMPL))
     {
+      tape.no_valid_file = TRUE;
+
       Error(ERR_WARN, "unknown format of tape file '%s'", filename);
       fclose(file);
       return;
@@ -3087,6 +3231,8 @@ void LoadTapeFromFilename(char *filename)
 
     if ((tape.file_version = getFileVersionFromCookieString(cookie)) == -1)
     {
+      tape.no_valid_file = TRUE;
+
       Error(ERR_WARN, "unsupported version of tape file '%s'", filename);
       fclose(file);
       return;
@@ -3303,11 +3449,21 @@ void DumpTape(struct TapeInfo *tape)
 {
   int i, j;
 
+#if 1
+  if (tape->no_valid_file)
+  {
+    Error(ERR_WARN, "cannot dump -- no valid tape file found");
+
+    return;
+  }
+#else
   if (TAPE_IS_EMPTY(*tape))
   {
     Error(ERR_WARN, "no tape available for level %d", tape->level_nr);
+
     return;
   }
+#endif
 
   printf_line("-", 79);
   printf("Tape of Level %03d (file version %08d, game version %08d)\n",