(Canvas/JS) Getting strange results with moving the view and fillRect, not sure what the problem is

Posted by AngerAlone on Game Development See other posts from Game Development or by AngerAlone
Published on 2013-10-22T06:29:31Z Indexed on 2013/10/22 10:16 UTC
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JavaScript

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html5

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canvas

I'm really new to JS and have been banging my head against this problem all day.

Here's a jsfiddle: http://jsfiddle.net/4ShH4/1/

AND

fullscreen: http://jsfiddle.net/4ShH4/1/embedded/result/

I'm getting this weird tearing/elongation of the drawn elements when I move the screen with WASD. I have no idea whats causing the problem. I've put comments on the fiddle to explain my code.

Any help would be greatly appreciated.

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