rnd-20091205-1-src
[rocksndiamonds.git] / src / files.c
index 239b85ec89a51863584162e5c2a7a9f840016854..36939ac7d89ad264483dacae085317b3eadd64e7 100644 (file)
@@ -1587,8 +1587,10 @@ static void setLevelInfoToDefaults(struct LevelInfo *level)
   *level = li;         /* copy temporary buffer back to level data */
 
   setLevelInfoToDefaults_EM();
+  setLevelInfoToDefaults_SP();
 
   level->native_em_level = &native_em_level;
+  level->native_sp_level = &native_sp_level;
 
   level->file_version = FILE_VERSION_ACTUAL;
   level->game_version = GAME_VERSION_ACTUAL;
@@ -1768,21 +1770,33 @@ static char *getLevelFilenameFromBasename(char *basename)
 
 static int getFileTypeFromBasename(char *basename)
 {
+  /* !!! ALSO SEE COMMENT IN checkForPackageFromBasename() !!! */
+
   static char *filename = NULL;
   struct stat file_status;
 
   /* ---------- try to determine file type from filename ---------- */
 
   /* check for typical filename of a Supaplex level package file */
+#if 1
+  if (strlen(basename) == 10 && strPrefixLower(basename, "levels.d"))
+    return LEVEL_FILE_TYPE_SP;
+#else
   if (strlen(basename) == 10 && (strncmp(basename, "levels.d", 8) == 0 ||
                                 strncmp(basename, "LEVELS.D", 8) == 0))
     return LEVEL_FILE_TYPE_SP;
+#endif
 
   /* check for typical filename of a Diamond Caves II level package file */
-  if (strSuffix(basename, ".dc") ||
-      strSuffix(basename, ".dc2"))
+  if (strSuffixLower(basename, ".dc") ||
+      strSuffixLower(basename, ".dc2"))
     return LEVEL_FILE_TYPE_DC;
 
+  /* check for typical filename of a Sokoban level package file */
+  if (strSuffixLower(basename, ".xsb") &&
+      strchr(basename, '%') == NULL)
+    return LEVEL_FILE_TYPE_SB;
+
   /* ---------- try to determine file type from filesize ---------- */
 
   checked_free(filename);
@@ -1798,6 +1812,14 @@ static int getFileTypeFromBasename(char *basename)
   return LEVEL_FILE_TYPE_UNKNOWN;
 }
 
+static boolean checkForPackageFromBasename(char *basename)
+{
+  /* !!! WON'T WORK ANYMORE IF getFileTypeFromBasename() ALSO DETECTS !!!
+     !!! SINGLE LEVELS (CURRENTLY ONLY DETECTS LEVEL PACKAGES         !!! */
+
+  return (getFileTypeFromBasename(basename) != LEVEL_FILE_TYPE_UNKNOWN);
+}
+
 static char *getSingleLevelBasename(int nr)
 {
   static char basename[MAX_FILENAME_LEN];
@@ -1951,6 +1973,9 @@ static void determineLevelFileInfo_Filename(struct LevelFileInfo *lfi)
 
     setLevelFileInfo_FormatLevelFilename(lfi, filetype,
                                         leveldir_current->level_filename, nr);
+
+    lfi->packed = checkForPackageFromBasename(leveldir_current->level_filename);
+
     if (fileExists(lfi->filename))
       return;
   }
@@ -3799,30 +3824,13 @@ void CopyNativeLevel_EM_to_RND(struct LevelInfo *level)
   }
 }
 
-static void LoadLevelFromFileInfo_EM(struct LevelInfo *level,
-                                    struct LevelFileInfo *level_file_info)
-{
-  if (!LoadNativeLevel_EM(level_file_info->filename))
-    level->no_valid_file = TRUE;
-}
-
-void CopyNativeLevel_RND_to_Native(struct LevelInfo *level)
-{
-  if (level->game_engine_type == GAME_ENGINE_TYPE_EM)
-    CopyNativeLevel_RND_to_EM(level);
-}
-
-void CopyNativeLevel_Native_to_RND(struct LevelInfo *level)
-{
-  if (level->game_engine_type == GAME_ENGINE_TYPE_EM)
-    CopyNativeLevel_EM_to_RND(level);
-}
-
 
 /* ------------------------------------------------------------------------- */
 /* functions for loading SP level                                            */
 /* ------------------------------------------------------------------------- */
 
+#if 0
+
 #define NUM_SUPAPLEX_LEVELS_PER_PACKAGE        111
 #define SP_LEVEL_SIZE                  1536
 #define SP_LEVEL_XSIZE                 60
@@ -4013,7 +4021,8 @@ 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)
+  if (level_file_info->packed &&
+      fseek(file, nr * SP_LEVEL_SIZE, SEEK_SET) != 0)
   {
     level->no_valid_file = TRUE;
 
@@ -4167,6 +4176,187 @@ static void LoadLevelFromFileInfo_SP(struct LevelInfo *level,
     *level = multipart_level;
 }
 
+#endif
+
+void CopyNativeLevel_RND_to_SP(struct LevelInfo *level)
+{
+  struct LevelInfo_SP *level_sp = level->native_sp_level;
+  LevelInfoType *header = &level_sp->header;
+  int i, x, y;
+
+  level_sp->width = level->fieldx;
+  level_sp->height = level->fieldy;
+
+  for (x = 0; x < level->fieldx; x++)
+  {
+    for (y = 0; y < level->fieldy; y++)
+    {
+      int element_old = level->field[x][y];
+      int element_new;
+
+      if (element_old >= EL_SP_START &&
+         element_old <= EL_SP_END)
+       element_new = element_old - EL_SP_START;
+      else if (element_old == EL_EMPTY_SPACE)
+       element_new = 0x00;
+      else if (element_old == EL_INVISIBLE_WALL)
+       element_new = 0x28;
+      else
+       element_new = 0x20;     /* map unknown elements to yellow "hardware" */
+
+      level_sp->playfield[x][y] = element_new;
+    }
+  }
+
+  header->InitialGravity = (level->initial_player_gravity[0] ? 1 : 0);
+
+  for (i = 0; i < SP_LEVEL_NAME_LEN; i++)
+    header->LevelTitle[i] = level->name[i];
+  /* !!! NO STRING TERMINATION IN SUPAPLEX VB CODE YET -- FIX THIS !!! */
+
+  header->InfotronsNeeded = level->gems_needed;
+
+  /* !!! ADD SPECIAL PORT DATABASE STUFF !!! */
+}
+
+void CopyNativeLevel_SP_to_RND(struct LevelInfo *level)
+{
+  struct LevelInfo_SP *level_sp = level->native_sp_level;
+  LevelInfoType *header = &level_sp->header;
+  int i, x, y;
+
+  level->fieldx = level_sp->width;
+  level->fieldy = level_sp->height;
+
+  for (x = 0; x < level->fieldx; x++)
+  {
+    for (y = 0; y < level->fieldy; y++)
+    {
+      int element_old = level_sp->playfield[x][y];
+      int element_new;
+
+      if (element_old <= 0x27)
+       element_new = getMappedElement(EL_SP_START + element_old);
+      else if (element_old == 0x28)
+       element_new = EL_INVISIBLE_WALL;
+      else
+      {
+       Error(ERR_WARN, "invalid element %d at position %d, %d",
+             element_old, x, y);
+
+       element_new = EL_UNKNOWN;
+      }
+
+      level->field[x][y] = element_new;
+    }
+  }
+
+  for (i = 0; i < MAX_PLAYERS; i++)
+    level->initial_player_gravity[i] =
+      (header->InitialGravity == 1 ? TRUE : FALSE);
+
+  for (i = 0; i < SP_LEVEL_NAME_LEN; i++)
+    level->name[i] = header->LevelTitle[i];
+  level->name[SP_LEVEL_NAME_LEN] = '\0';
+
+  level->gems_needed = header->InfotronsNeeded;
+
+  for (i = 0; i < header->SpecialPortCount; i++)
+  {
+    SpecialPortType *port = &header->SpecialPort[i];
+    int port_location = port->PortLocation;
+    int gravity = port->Gravity;
+    int port_x, port_y, port_element;
+
+    port_x = (port_location / 2) % level->fieldx;
+    port_y = (port_location / 2) / level->fieldx;
+
+    if (port_x < 0 || port_x >= level->fieldx ||
+       port_y < 0 || port_y >= level->fieldy)
+    {
+      Error(ERR_WARN, "special port position (%d, %d) out of bounds",
+           port_x, port_y);
+
+      continue;
+    }
+
+    port_element = level->field[port_x][port_y];
+
+    if (port_element < EL_SP_GRAVITY_PORT_RIGHT ||
+       port_element > EL_SP_GRAVITY_PORT_UP)
+    {
+      Error(ERR_WARN, "no special port at position (%d, %d)", port_x, port_y);
+
+      continue;
+    }
+
+    /* change previous (wrong) gravity inverting special port to either
+       gravity enabling special port or gravity disabling special port */
+    level->field[port_x][port_y] +=
+      (gravity == 1 ? EL_SP_GRAVITY_ON_PORT_RIGHT :
+       EL_SP_GRAVITY_OFF_PORT_RIGHT) - EL_SP_GRAVITY_PORT_RIGHT;
+  }
+
+  /* change special gravity ports without database entries to normal ports */
+  for (x = 0; x < level->fieldx; x++)
+    for (y = 0; y < level->fieldy; y++)
+      if (level->field[x][y] >= EL_SP_GRAVITY_PORT_RIGHT &&
+         level->field[x][y] <= EL_SP_GRAVITY_PORT_UP)
+       level->field[x][y] += EL_SP_PORT_RIGHT - EL_SP_GRAVITY_PORT_RIGHT;
+
+  level->time = 0;                     /* no time limit */
+  level->amoeba_speed = 0;
+  level->time_magic_wall = 0;
+  level->time_wheel = 0;
+  level->amoeba_content = EL_EMPTY;
+
+#if 1
+  /* original Supaplex does not use score values -- use default values */
+#else
+  for (i = 0; i < LEVEL_SCORE_ELEMENTS; i++)
+    level->score[i] = 0;
+#endif
+
+  /* there are no yamyams in supaplex levels */
+  for (i = 0; i < level->num_yamyam_contents; i++)
+    for (x = 0; x < 3; x++)
+      for (y = 0; y < 3; y++)
+       level->yamyam_content[i].e[x][y] = EL_EMPTY;
+}
+
+static void setTapeInfoToDefaults();
+
+static void CopyNativeTape_SP_to_RND(struct LevelInfo *level)
+{
+  struct LevelInfo_SP *level_sp = level->native_sp_level;
+  struct DemoInfo_SP *demo = &level_sp->demo;
+  int i;
+
+  /* always start with reliable default values */
+  setTapeInfoToDefaults();
+
+  tape.level_nr = demo->level_nr;      /* (currently not used) */
+  tape.length = demo->length - 1;      /* without "end of demo" byte */
+  tape.random_seed = level_sp->header.DemoRandomSeed;
+
+  // tape.date = <SET FROM FILE DATE OF *.SP FILE>
+
+  for (i = 0; i < demo->length - 1; i++)
+  {
+    int demo_action = demo->data[i] & 0x0f;
+    int demo_repeat = (demo->data[i] & 0xf0) >> 4;
+
+    tape.pos[i].action[0] = map_key_SP_to_RND(demo_action);
+    tape.pos[i].delay = demo_repeat + 1;
+  }
+
+  tape.length_seconds = GetTapeLength();
+}
+
+
+/* ------------------------------------------------------------------------- */
+/* functions for loading DC level                                            */
+/* ------------------------------------------------------------------------- */
 
 #define DC_LEVEL_HEADER_SIZE           344
 
@@ -6137,6 +6327,353 @@ static void LoadLevelFromFileInfo_DC(struct LevelInfo *level,
 #endif
 
 
+/* ------------------------------------------------------------------------- */
+/* functions for loading SB level                                            */
+/* ------------------------------------------------------------------------- */
+
+int getMappedElement_SB(int element_ascii, boolean use_ces)
+{
+  static struct
+  {
+    int ascii;
+    int sb;
+    int ce;
+  }
+  sb_element_mapping[] =
+  {
+    { ' ', EL_EMPTY,                EL_CUSTOM_1 },  /* floor (space) */
+    { '#', EL_STEELWALL,            EL_CUSTOM_2 },  /* wall */
+    { '@', EL_PLAYER_1,             EL_CUSTOM_3 },  /* player */
+    { '$', EL_SOKOBAN_OBJECT,       EL_CUSTOM_4 },  /* box */
+    { '.', EL_SOKOBAN_FIELD_EMPTY,  EL_CUSTOM_5 },  /* goal square */
+    { '*', EL_SOKOBAN_FIELD_FULL,   EL_CUSTOM_6 },  /* box on goal square */
+    { '+', EL_SOKOBAN_FIELD_PLAYER, EL_CUSTOM_7 },  /* player on goal square */
+    { '_', EL_INVISIBLE_STEELWALL,  EL_CUSTOM_8 },  /* floor beyond border */
+
+    { 0,   -1,                      -1          },
+  };
+
+  int i;
+
+  for (i = 0; sb_element_mapping[i].ascii != 0; i++)
+    if (element_ascii == sb_element_mapping[i].ascii)
+      return (use_ces ? sb_element_mapping[i].ce : sb_element_mapping[i].sb);
+
+  return EL_UNDEFINED;
+}
+
+static void LoadLevelFromFileInfo_SB(struct LevelInfo *level,
+                                    struct LevelFileInfo *level_file_info)
+{
+  char *filename = level_file_info->filename;
+  char line[MAX_LINE_LEN], line_raw[MAX_LINE_LEN], previous_line[MAX_LINE_LEN];
+  char last_comment[MAX_LINE_LEN];
+  char level_name[MAX_LINE_LEN];
+  char *line_ptr;
+  FILE *file;
+  int num_levels_to_skip = level_file_info->nr - leveldir_current->first_level;
+  boolean read_continued_line = FALSE;
+  boolean reading_playfield = FALSE;
+  boolean got_valid_playfield_line = FALSE;
+  boolean invalid_playfield_char = FALSE;
+  boolean load_xsb_to_ces = options.cmd_switches & CMD_SWITCH_LOAD_XSB_TO_CES;
+  int file_level_nr = 0;
+  int line_nr = 0;
+  int x, y;
+
+#if 0
+  printf("::: looking for level number %d [%d]\n",
+        level_file_info->nr, num_levels_to_skip);
+#endif
+
+  last_comment[0] = '\0';
+  level_name[0] = '\0';
+
+  if (!(file = fopen(filename, MODE_READ)))
+  {
+    level->no_valid_file = TRUE;
+
+    Error(ERR_WARN, "cannot read level '%s' -- using empty level", filename);
+
+    return;
+  }
+
+  while (!feof(file))
+  {
+    /* level successfully read, but next level may follow here */
+    if (!got_valid_playfield_line && reading_playfield)
+    {
+#if 0
+      printf("::: read complete playfield\n");
+#endif
+
+      /* read playfield from single level file -- skip remaining file */
+      if (!level_file_info->packed)
+       break;
+
+      if (file_level_nr >= num_levels_to_skip)
+       break;
+
+      file_level_nr++;
+
+      last_comment[0] = '\0';
+      level_name[0] = '\0';
+
+      reading_playfield = FALSE;
+    }
+
+    got_valid_playfield_line = FALSE;
+
+    /* read next line of input file */
+    if (!fgets(line, MAX_LINE_LEN, file))
+      break;
+
+    /* check if line was completely read and is terminated by line break */
+    if (strlen(line) > 0 && line[strlen(line) - 1] == '\n')
+      line_nr++;
+
+    /* cut trailing line break (this can be newline and/or carriage return) */
+    for (line_ptr = &line[strlen(line)]; line_ptr >= line; line_ptr--)
+      if ((*line_ptr == '\n' || *line_ptr == '\r') && *(line_ptr + 1) == '\0')
+        *line_ptr = '\0';
+
+    /* copy raw input line for later use (mainly debugging output) */
+    strcpy(line_raw, line);
+
+    if (read_continued_line)
+    {
+      /* append new line to existing line, if there is enough space */
+      if (strlen(previous_line) + strlen(line_ptr) < MAX_LINE_LEN)
+        strcat(previous_line, line_ptr);
+
+      strcpy(line, previous_line);      /* copy storage buffer to line */
+
+      read_continued_line = FALSE;
+    }
+
+    /* if the last character is '\', continue at next line */
+    if (strlen(line) > 0 && line[strlen(line) - 1] == '\\')
+    {
+      line[strlen(line) - 1] = '\0';    /* cut off trailing backslash */
+      strcpy(previous_line, line);      /* copy line to storage buffer */
+
+      read_continued_line = TRUE;
+
+      continue;
+    }
+
+    /* skip empty lines */
+    if (line[0] == '\0')
+      continue;
+
+    /* extract comment text from comment line */
+    if (line[0] == ';')
+    {
+      for (line_ptr = line; *line_ptr; line_ptr++)
+        if (*line_ptr != ' ' && *line_ptr != '\t' && *line_ptr != ';')
+          break;
+
+      strcpy(last_comment, line_ptr);
+
+#if 0
+      printf("::: found comment '%s' in line %d\n", last_comment, line_nr);
+#endif
+
+      continue;
+    }
+
+    /* extract level title text from line containing level title */
+    if (line[0] == '\'')
+    {
+      strcpy(level_name, &line[1]);
+
+      if (strlen(level_name) > 0 && level_name[strlen(level_name) - 1] == '\'')
+       level_name[strlen(level_name) - 1] = '\0';
+
+#if 0
+      printf("::: found level name '%s' in line %d\n", level_name, line_nr);
+#endif
+
+      continue;
+    }
+
+    /* skip lines containing only spaces (or empty lines) */
+    for (line_ptr = line; *line_ptr; line_ptr++)
+      if (*line_ptr != ' ')
+       break;
+    if (*line_ptr == '\0')
+      continue;
+
+    /* at this point, we have found a line containing part of a playfield */
+
+#if 0
+    printf("::: found playfield row in line %d\n", line_nr);
+#endif
+
+    got_valid_playfield_line = TRUE;
+
+    if (!reading_playfield)
+    {
+      reading_playfield = TRUE;
+      invalid_playfield_char = FALSE;
+
+      for (x = 0; x < MAX_LEV_FIELDX; x++)
+       for (y = 0; y < MAX_LEV_FIELDY; y++)
+         level->field[x][y] = getMappedElement_SB(' ', load_xsb_to_ces);
+
+      level->fieldx = 0;
+      level->fieldy = 0;
+
+      /* start with topmost tile row */
+      y = 0;
+    }
+
+    /* skip playfield line if larger row than allowed */
+    if (y >= MAX_LEV_FIELDY)
+      continue;
+
+    /* start with leftmost tile column */
+    x = 0;
+
+    /* read playfield elements from line */
+    for (line_ptr = line; *line_ptr; line_ptr++)
+    {
+      int mapped_sb_element = getMappedElement_SB(*line_ptr, load_xsb_to_ces);
+
+      /* stop parsing playfield line if larger column than allowed */
+      if (x >= MAX_LEV_FIELDX)
+       break;
+
+      if (mapped_sb_element == EL_UNDEFINED)
+      {
+       invalid_playfield_char = TRUE;
+
+       break;
+      }
+
+      level->field[x][y] = mapped_sb_element;
+
+      /* continue with next tile column */
+      x++;
+
+      level->fieldx = MAX(x, level->fieldx);
+    }
+
+    if (invalid_playfield_char)
+    {
+      /* if first playfield line, treat invalid lines as comment lines */
+      if (y == 0)
+       reading_playfield = FALSE;
+
+      continue;
+    }
+
+    /* continue with next tile row */
+    y++;
+  }
+
+  fclose(file);
+
+  level->fieldy = y;
+
+  level->fieldx = MIN(MAX(MIN_LEV_FIELDX, level->fieldx), MAX_LEV_FIELDX);
+  level->fieldy = MIN(MAX(MIN_LEV_FIELDY, level->fieldy), MAX_LEV_FIELDY);
+
+  if (!reading_playfield)
+  {
+    level->no_valid_file = TRUE;
+
+    Error(ERR_WARN, "cannot read level '%s' -- using empty level", filename);
+
+    return;
+  }
+
+  if (*level_name != '\0')
+  {
+    strncpy(level->name, level_name, MAX_LEVEL_NAME_LEN);
+    level->name[MAX_LEVEL_NAME_LEN] = '\0';
+
+#if 0
+    printf(":1: level name: '%s'\n", level->name);
+#endif
+  }
+  else if (*last_comment != '\0')
+  {
+    strncpy(level->name, last_comment, MAX_LEVEL_NAME_LEN);
+    level->name[MAX_LEVEL_NAME_LEN] = '\0';
+
+#if 0
+    printf(":2: level name: '%s'\n", level->name);
+#endif
+  }
+  else
+  {
+    sprintf(level->name, "--> Level %d <--", level_file_info->nr);
+  }
+
+  /* set all empty fields beyond the border walls to invisible steel wall */
+  for (y = 0; y < level->fieldy; y++) for (x = 0; x < level->fieldx; x++)
+  {
+    if ((x == 0 || x == level->fieldx - 1 ||
+        y == 0 || y == level->fieldy - 1) &&
+       level->field[x][y] == getMappedElement_SB(' ', load_xsb_to_ces))
+      FloodFillLevel(x, y, getMappedElement_SB('_', load_xsb_to_ces),
+                    level->field, level->fieldx, level->fieldy);
+  }
+
+  if (load_xsb_to_ces)
+  {
+    level->time = 0;
+    level->use_step_counter = TRUE;
+
+    level->initial_player_stepsize[0] = STEPSIZE_SLOW;
+
+    level->use_custom_template = TRUE;
+  }
+}
+
+
+/* ------------------------------------------------------------------------- */
+/* functions for handling native levels                                      */
+/* ------------------------------------------------------------------------- */
+
+static void LoadLevelFromFileInfo_EM(struct LevelInfo *level,
+                                    struct LevelFileInfo *level_file_info)
+{
+  if (!LoadNativeLevel_EM(level_file_info->filename))
+    level->no_valid_file = TRUE;
+}
+
+static void LoadLevelFromFileInfo_SP(struct LevelInfo *level,
+                                    struct LevelFileInfo *level_file_info)
+{
+  int pos = 0;
+
+  /* determine position of requested level inside level package */
+  if (level_file_info->packed)
+    pos = level_file_info->nr - leveldir_current->first_level;
+
+  if (!LoadNativeLevel_SP(level_file_info->filename, pos))
+    level->no_valid_file = TRUE;
+}
+
+void CopyNativeLevel_RND_to_Native(struct LevelInfo *level)
+{
+  if (level->game_engine_type == GAME_ENGINE_TYPE_EM)
+    CopyNativeLevel_RND_to_EM(level);
+  else if (level->game_engine_type == GAME_ENGINE_TYPE_SP)
+    CopyNativeLevel_RND_to_SP(level);
+}
+
+void CopyNativeLevel_Native_to_RND(struct LevelInfo *level)
+{
+  if (level->game_engine_type == GAME_ENGINE_TYPE_EM)
+    CopyNativeLevel_EM_to_RND(level);
+  else if (level->game_engine_type == GAME_ENGINE_TYPE_SP)
+    CopyNativeLevel_SP_to_RND(level);
+}
+
+
 /* ------------------------------------------------------------------------- */
 /* functions for loading generic level                                       */
 /* ------------------------------------------------------------------------- */
@@ -6160,15 +6697,17 @@ void LoadLevelFromFileInfo(struct LevelInfo *level,
 
     case LEVEL_FILE_TYPE_SP:
       LoadLevelFromFileInfo_SP(level, level_file_info);
-#if 1
       level->game_engine_type = GAME_ENGINE_TYPE_SP;
-#endif
       break;
 
     case LEVEL_FILE_TYPE_DC:
       LoadLevelFromFileInfo_DC(level, level_file_info);
       break;
 
+    case LEVEL_FILE_TYPE_SB:
+      LoadLevelFromFileInfo_SB(level, level_file_info);
+      break;
+
     default:
       LoadLevelFromFileInfo_RND(level, level_file_info);
       break;
@@ -7841,6 +8380,13 @@ void LoadSolutionTape(int nr)
   char *filename = getSolutionTapeFilename(nr);
 
   LoadTapeFromFilename(filename);
+
+#if 1
+  if (TAPE_IS_EMPTY(tape) &&
+      level.game_engine_type == GAME_ENGINE_TYPE_SP &&
+      level.native_sp_level->demo.is_available)
+    CopyNativeTape_SP_to_RND(&level);
+#endif
 }
 
 static void SaveTape_VERS(FILE *file, struct TapeInfo *tape)