X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Ffiles.c;h=ccea3f949f2f645f55ad17ff4d95bef93bb48982;hb=1442f47fb19411923cba74dd8a7c17fef1fe5e0d;hp=8e6ec1bb99c58cae3cca6f98f50d4bf1c7b1cefb;hpb=f7eeeedb1a0bb21cbd8366cf241faffc76aafc16;p=rocksndiamonds.git

diff --git a/src/files.c b/src/files.c
index 8e6ec1bb..ccea3f94 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	7	/* unused level header bytes  */
+#define LEVEL_HEADER_UNUSED	1	/* 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  */
@@ -106,15 +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;
@@ -126,6 +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;
@@ -159,11 +161,14 @@ static void setLevelInfoToDefaults(struct LevelInfo *level)
   level->em_slippery_gems = FALSE;
   level->block_last_field = FALSE;
   level->sp_block_last_field = TRUE;
-
-  level->use_spring_bug = FALSE;
+  level->instant_relocation = FALSE;
+  level->can_pass_to_walkable = FALSE;
+  level->grow_into_diggable = TRUE;
 
   level->can_move_into_acid_bits = ~0;	/* everything can move into acid */
+  level->dont_collide_with_bits = ~0;	/* always deadly when colliding  */
 
+  level->use_spring_bug = FALSE;
   level->use_step_counter = FALSE;
 
   level->use_custom_template = FALSE;
@@ -200,10 +205,16 @@ 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';
@@ -217,9 +228,12 @@ static void setLevelInfoToDefaults(struct LevelInfo *level)
 
       element_info[element].use_gfx_element = FALSE;
       element_info[element].gfx_element = EL_EMPTY_SPACE;
+
+      element_info[element].modified_settings = FALSE;
     }
 
-    if (IS_CUSTOM_ELEMENT(element))
+    if (IS_CUSTOM_ELEMENT(element) ||
+	IS_INTERNAL_ELEMENT(element))
     {
       element_info[element].access_direction = MV_ALL_DIRECTIONS;
 
@@ -228,19 +242,23 @@ 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;
 
       element_info[element].move_pattern = MV_ALL_DIRECTIONS;
       element_info[element].move_direction_initial = MV_START_AUTOMATIC;
       element_info[element].move_stepsize = TILEX / 8;
+
       element_info[element].move_enter_element = EL_EMPTY_SPACE;
       element_info[element].move_leave_element = EL_EMPTY_SPACE;
       element_info[element].move_leave_type = LEAVE_TYPE_UNLIMITED;
 
       element_info[element].slippery_type = SLIPPERY_ANY_RANDOM;
 
-      element_info[element].explosion_delay = 18;
+      element_info[element].explosion_type = EXPLODES_3X3;
+      element_info[element].explosion_delay = 16;
       element_info[element].ignition_delay = 8;
 
       for (x = 0; x < 3; x++)
@@ -253,7 +271,6 @@ static void setLevelInfoToDefaults(struct LevelInfo *level)
       element_info[element].walk_to_action = 0;
       element_info[element].smash_targets = 0;
       element_info[element].deadliness = 0;
-      element_info[element].consistency = 0;
 
       element_info[element].can_explode_by_fire = FALSE;
       element_info[element].can_explode_smashed = FALSE;
@@ -267,10 +284,10 @@ static void setLevelInfoToDefaults(struct LevelInfo *level)
 
       /* now set default properties */
       SET_PROPERTY(element, EP_CAN_MOVE_INTO_ACID, TRUE);
-
-      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)
@@ -287,9 +304,11 @@ 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;
@@ -549,7 +568,7 @@ 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)
@@ -610,6 +629,32 @@ 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);
@@ -654,13 +699,16 @@ 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->can_move_into_acid_bits = getFile16BitBE(file);
-
   level->use_step_counter	= (getFile8Bit(file) == 1 ? TRUE : FALSE);
 
+  level->instant_relocation	= (getFile8Bit(file) == 1 ? TRUE : FALSE);
+  level->can_pass_to_walkable	= (getFile8Bit(file) == 1 ? TRUE : FALSE);
+  level->grow_into_diggable	= (getFile8Bit(file) == 1 ? TRUE : FALSE);
+
   ReadUnusedBytesFromFile(file, LEVEL_HEADER_UNUSED);
 
   return chunk_size;
@@ -940,16 +988,16 @@ 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);
@@ -1010,8 +1058,10 @@ 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);
 
@@ -1037,9 +1087,10 @@ static int LoadLevel_CUS4(FILE *file, int chunk_size, struct LevelInfo *level)
 
   ei->explosion_delay = getFile8Bit(file);
   ei->ignition_delay = getFile8Bit(file);
+  ei->explosion_type = getFile8Bit(file);
 
   /* some free bytes for future custom property values and padding */
-  ReadUnusedBytesFromFile(file, 2);
+  ReadUnusedBytesFromFile(file, 1);
 
   /* read change property values */
 
@@ -1063,16 +1114,16 @@ 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);
 
@@ -1156,7 +1207,7 @@ 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);
@@ -1172,6 +1223,8 @@ 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;
@@ -1186,6 +1239,8 @@ 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;
@@ -1193,6 +1248,8 @@ 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;
@@ -1606,7 +1663,7 @@ 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);
 
@@ -1798,7 +1855,7 @@ 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);
 
@@ -1808,7 +1865,7 @@ 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);
 
@@ -2040,6 +2097,11 @@ static void LoadLevel_InitVersion(struct LevelInfo *level, char *filename)
        pre-2.0 levels, where the game version is still taken from the
        file format version used to store the level -- see above). */
 
+#if 1
+    /* player was faster than enemies in 1.0.0 and before */
+    if (level->file_version == FILE_VERSION_1_0)
+      level->double_speed = TRUE;
+#else
     /* do some special adjustments to support older level versions */
     if (level->file_version == FILE_VERSION_1_0)
     {
@@ -2049,19 +2111,21 @@ static void LoadLevel_InitVersion(struct LevelInfo *level, char *filename)
       /* player was faster than monsters in (pre-)1.0 levels */
       level->double_speed = TRUE;
     }
+#endif
 
-    /* Default behaviour for EM style gems was "slippery" only in 2.0.1 */
+    /* default behaviour for EM style gems was "slippery" only in 2.0.1 */
     if (level->game_version == VERSION_IDENT(2,0,1,0))
       level->em_slippery_gems = TRUE;
 
     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, j;
 
       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);
@@ -2130,7 +2194,7 @@ 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) */
@@ -2189,7 +2253,7 @@ static void LoadLevel_InitElements(struct LevelInfo *level, char *filename)
     }
   }
 
-  /* correct custom element fields (for old levels without these options) */
+  /* correct custom element values (for old levels without these options) */
   for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
   {
     int element = EL_CUSTOM_START + i;
@@ -2207,6 +2271,22 @@ static void LoadLevel_InitElements(struct LevelInfo *level, char *filename)
     }
   }
 
+  /* initialize "can_explode" field for old levels which did not store this */
+  if (level->game_version <= VERSION_IDENT(3,1,0,0))
+  {
+    for (i = 0; i < NUM_CUSTOM_ELEMENTS; i++)
+    {
+      int element = EL_CUSTOM_START + i;
+
+      if (EXPLODES_1X1_OLD(element))
+	element_info[element].explosion_type = EXPLODES_1X1;
+
+      SET_PROPERTY(element, EP_CAN_EXPLODE, (EXPLODES_BY_FIRE(element) ||
+					     EXPLODES_SMASHED(element) ||
+					     EXPLODES_IMPACT(element)));
+    }
+  }
+
 #if 0
   /* set default push delay values (corrected since version 3.0.7-1) */
   if (level->game_version < VERSION_IDENT(3,0,7,1))
@@ -2232,6 +2312,16 @@ 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);
 }
@@ -2247,6 +2337,9 @@ 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 */
@@ -2265,6 +2358,7 @@ 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;
     }
@@ -2368,13 +2462,16 @@ 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));
-
-  putFile16BitBE(file, level->can_move_into_acid_bits);
-
   putFile8Bit(file, (level->use_step_counter ? 1 : 0));
 
+  putFile8Bit(file, (level->instant_relocation ? 1 : 0));
+  putFile8Bit(file, (level->can_pass_to_walkable ? 1 : 0));
+  putFile8Bit(file, (level->grow_into_diggable ? 1 : 0));
+
   WriteUnusedBytesToFile(file, LEVEL_HEADER_UNUSED);
 }
 
@@ -2600,12 +2697,12 @@ 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++)
@@ -2652,8 +2749,10 @@ 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);
 
@@ -2679,9 +2778,10 @@ static void SaveLevel_CUS4(FILE *file, struct LevelInfo *level, int element)
 
   putFile8Bit(file, ei->explosion_delay);
   putFile8Bit(file, ei->ignition_delay);
+  putFile8Bit(file, ei->explosion_type);
 
   /* some free bytes for future custom property values and padding */
-  WriteUnusedBytesToFile(file, 2);
+  WriteUnusedBytesToFile(file, 1);
 
   /* write change property values */
 
@@ -2700,16 +2800,16 @@ 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);
 
@@ -2888,6 +2988,13 @@ 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);
@@ -2946,6 +3053,8 @@ 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)
@@ -3110,7 +3219,15 @@ 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)
@@ -3120,6 +3237,8 @@ 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;
@@ -3134,6 +3253,8 @@ 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;
@@ -3141,6 +3262,8 @@ 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;
@@ -3357,11 +3480,21 @@ 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",