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How do you check if a texture file exists?


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Before I start rolling my own code, I thought I'd ask to make sure I'm not re-inventing the wheel. Is there an easy way (aka, a pre-existing function/class/method) for checking if an icon or texture file exists before registering it?


The use case I'm looking at is where my mod has a custom tool (call it cTool), and during postInit, the mod checks to see if any other mods have added custom tool materials. If so, my mod then auto-generates more cTools made with the added custom materials. These auto-generated cTools need icons; if I've heard of the mod, I may have already created an icon for custom-material cTool; if so, all well and good. However, if I haven't, I'd like the option to fall back to some generic-looking icon rather than tossing up a "Missing Texture" icon.

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Actually, my mod does not "know" what textures exist; it just blithely assumes that when it synthesizes a texture name from material & tool suffix, then that texture exists.


Is there a handy way to enumerate over the contents of an assets directory?

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