Horde3D

Next-Generation Graphics Engine
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PostPosted: 24.07.2008, 02:53 
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Joined: 03.07.2008, 01:23
Posts: 50
When a resource isn't loaded successfully, I can see an entry in the log file. But from the code side this isn't really helpful. I can still apparently possible to successfully add nodes from a resource that wasn't successfully loaded, as apparently it does no error checking or at least it returns a nonzero node. (I think it *should* do error checking even if it's a bit slower though).

There is no utility function to only load a single resource from disk (well, I guess I'll have to write one). Wouldn't it be nice to just be able to check whether a resource is loaded or not, after calling loadResourcesFromDisk?

In addition to the patch below, I think adding nodes from the resource should also fail.

I won't make separate patch, but just paste the changed I made here because my diffs show extremal amount of windows linebreaks... Also the whitespace seems to get smashed when I paste here, but it's just a matter of indenting it again.

in egMain.cpp
Code:
DLLEXP bool isResourceLoaded( ResHandle res )
   {
      return Modules::resMan().resolveResHandle(res)->isLoaded();
   }


in Horde3d.h

Code:

   /*    Function: loadResource
         Returns whether a resource has been successfully loaded.

        This function returns whether a resource has been successfully loaded.

      Parameters:
         res      - handle to the inspected resource

      Returns:
         true in case resource is loaded, otherwise false
   */
   DLL bool isResourceLoaded( ResHandle res );


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PostPosted: 24.07.2008, 19:45 
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Joined: 10.09.2006, 15:52
Posts: 1217
Thanks for these hints. The isResourceLoaded functionality can be useful in some cases.
I also just discussed with Volker the best behavior when calling addNodes with an unloaded resource and it makes sense to return 0 since the scene graph will not be updated automatically even if the scene graph resource is loaded later.


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