Its how he loads level data from image file using RGB values | Hacker News

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		ianl on Aug 21, 2011 \| parent \| context \| favorite \| on: Notch is coding live again Its how he loads level data from image file using RGB values

shabble on Aug 21, 2011 [–]

I noticed a snippet fairly recently (last hour or so) using alpha values as an ID for switches and the things they're connected to (doors, etc).

So technically, it's RGBA values :)

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