Fixed: "Failing to read more than one loose ded" see here (http://sou…

…rceforge.net/tracker2/?func=detail&aid=2646623&group_id=74815&atid=542099).

This wasn't strictly speaking a bug in that Doomsday expected that there would only be one instance of -def and/or -defs on the command line. Snowberry however assumed that any number of these may be specified. As such, I've opted to change how these command line options are handled in Doomsday:

The command line options -def and -defs are now treated identically, each can be used to specify one or more DED on the command line (e.g., "-def "}defs/jdoom/file1.ded" "}defs/jdoom/file2.ded") and Doomsday now accepts multiple instances of either option (e.g., "-def "}defs/jdoom/file1.ded" -def "}defs/jdoom/file2.ded"").

doomsday/engine/portable/src/def_main.c

@@ -125,7 +125,7 @@ static int GetXGClasses(void)
  */
 void Def_Init(void)
 {
-    int                 c;
+    int                 c, p;
 
     sprNames = NULL; // Sprite name list.
     mobjInfo = NULL;
@@ -147,41 +147,30 @@ void Def_Init(void)
 
     DED_Init(&defs);
 
+    memset(dedFiles, 0, sizeof(dedFiles));
+
     // The engine defs.
-    dedFiles[0] = defsFileName;
+    c = 0;
+    dedFiles[c++] = defsFileName;
 
     // Add the default ded. It will be overwritten by -defs.
-    dedFiles[c = 1] = topDefsFileName;
+    dedFiles[c++] = topDefsFileName;
 
     // See which .ded files are specified on the command line.
-    if(ArgCheck("-defs"))
+    for(p = 0; p < Argc(); ++p)
     {
-        while(c < MAX_READ)
-        {
-            char*               arg = ArgNext();
+        const char*         arg = Argv(p);
 
-            if(!arg || arg[0] == '-')
-                break;
+        if(stricmp(arg, "-def") && stricmp(arg, "-defs"))
+            continue;
 
+        while(c < MAX_READ && ++p != Argc() && !ArgIsOption(p))
+        {
             // Add it to the list.
-            dedFiles[c++] = arg;
+            dedFiles[c++] = Argv(p);
         }
-    }
 
-    // How about additional .ded files?
-    if(ArgCheckWith("-def", 1))
-    {
-        // Find the next empty place.
-        for(c = 0; dedFiles[c] && c < MAX_READ; ++c);
-            while(c < MAX_READ)
-            {
-                char*               arg = ArgNext();
-
-                if(!arg || arg[0] == '-')
-                    break;
-                // Add it to the list.
-                dedFiles[c++] = arg;
-            }
+        p--;/* For ArgIsOption(p) necessary, for p==Argc() harmless */
     }
 }