fixed loading custom PCX image files with default artwork file names

[rocksndiamonds.git] / src / libgame / misc.c

diff --git a/src/libgame/misc.c b/src/libgame/misc.c
index eb2f8f0c54476a281939448b3a9bdfe5aba8e984..259fb4dede6a1f3a41bf0fcf34e3cffffafa8d0d 100644 (file)
--- a/src/libgame/misc.c
+++ b/src/libgame/misc.c
@@ -606,6 +606,48 @@ char *getPath3(char *path1, char *path2, char *path3)
   return getStringCat3WithSeparator(path1, path2, path3, STRING_PATH_SEPARATOR);
 }
 
+char *getImg2(char *path1, char *path2)
+{
+  char *filename = getPath2(path1, path2);
+
+  if (!fileExists(filename) && strSuffix(path2, ".png"))
+  {
+    // backward compatibility: if PNG file not found, check for PCX file
+    char *path2pcx = getStringCopy(path2);
+
+    strcpy(&path2pcx[strlen(path2pcx) - 3], "pcx");
+
+    free(filename);
+
+    filename = getPath2(path1, path2pcx);
+
+    free(path2pcx);
+  }
+
+  return filename;
+}
+
+char *getImg3(char *path1, char *path2, char *path3)
+{
+  char *filename = getPath3(path1, path2, path3);
+
+  if (!fileExists(filename) && strSuffix(path3, ".png"))
+  {
+    // backward compatibility: if PNG file not found, check for PCX file
+    char *path3pcx = getStringCopy(path3);
+
+    strcpy(&path3pcx[strlen(path3pcx) - 3], "pcx");
+
+    free(filename);
+
+    filename = getPath3(path1, path2, path3pcx);
+
+    free(path3pcx);
+  }
+
+  return filename;
+}
+
 char *getStringCopy(const char *s)
 {
   char *s_copy;
@@ -2209,7 +2251,9 @@ boolean directoryExists(char *dir_name)
   if (dir_name == NULL)
     return FALSE;
 
-  boolean success = (access(dir_name, F_OK) == 0);
+  struct stat file_status;
+  boolean success = (stat(dir_name, &file_status) == 0 &&
+                    (file_status.st_mode & S_IFMT) == S_IFDIR);
 
 #if defined(PLATFORM_ANDROID)
   if (!success)
@@ -2297,40 +2341,37 @@ boolean fileHasSuffix(char *basename, char *suffix)
   return FALSE;
 }
 
-static boolean FileCouldBeArtwork(char *basename)
+static boolean FileCouldBeArtwork(char *filename)
 {
+  char *basename = getBaseNamePtr(filename);
+
   return (!strEqual(basename, ".") &&
          !strEqual(basename, "..") &&
          !fileHasSuffix(basename, "txt") &&
-         !fileHasSuffix(basename, "conf"));
+         !fileHasSuffix(basename, "conf") &&
+         !directoryExists(filename));
 }
 
 boolean FileIsGraphic(char *filename)
 {
-  char *basename = getBaseNamePtr(filename);
-
-  return FileCouldBeArtwork(basename);
+  return FileCouldBeArtwork(filename);
 }
 
 boolean FileIsSound(char *filename)
 {
-  char *basename = getBaseNamePtr(filename);
-
-  return FileCouldBeArtwork(basename);
+  return FileCouldBeArtwork(filename);
 }
 
 boolean FileIsMusic(char *filename)
 {
-  char *basename = getBaseNamePtr(filename);
-
-  return FileCouldBeArtwork(basename);
+  return FileCouldBeArtwork(filename);
 }
 
-boolean FileIsArtworkType(char *basename, int type)
+boolean FileIsArtworkType(char *filename, int type)
 {
-  if ((type == TREE_TYPE_GRAPHICS_DIR && FileIsGraphic(basename)) ||
-      (type == TREE_TYPE_SOUNDS_DIR && FileIsSound(basename)) ||
-      (type == TREE_TYPE_MUSIC_DIR && FileIsMusic(basename)))
+  if ((type == TREE_TYPE_GRAPHICS_DIR && FileIsGraphic(filename)) ||
+      (type == TREE_TYPE_SOUNDS_DIR && FileIsSound(filename)) ||
+      (type == TREE_TYPE_MUSIC_DIR && FileIsMusic(filename)))
     return TRUE;
 
   return FALSE;