search

quidmonkey / Per-Pixel-Collision-Detection

Per-Pixel Collision Detection for ImpactJS
17 stars 0 forks source link

Memory Usage #3

Open superprat opened 10 years ago

superprat commented 10 years ago

Hi, I'm facing a memory usage issue with the plugin, In excess of 300mb of memory is being used. Is there any way to drop the memory usage? Perhaps by sacrificing accuracy of the hit detection?

quidmonkey commented 10 years ago

@superprat -

This plugin was never mean to scale; indeed, it was more of a proof-of-concept, than a game-ready plugin. You can try two things going forward:

One, you could rewrite the plugin so that it doesn't cache the alpha values separately; instead, you could parse the ig.Image.data array directly and look at every 4th value for the alpha.

Two, you could use the Box2d plugin or another physics library to give you non-square bounding boxes. It wouldn't be as accurate as pixel-based collision detection, but it's a good intermediary step that would be much faster.

Best.