Randomly spawning bitmaps on cnvas

Posted by Toystoj on Game Development See other posts from Game Development or by Toystoj
Published on 2012-10-06T12:21:28Z Indexed on 2012/10/06 15:53 UTC
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Filed under:

android

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collision-detection

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procedural-generation

I need some ideas in order to finish algorithm. I'm randomly placing objects (bitmaps) on canvas without overlapping. Time needed to finish it is my problem. When I need to spawn for example 80% of canvas it takes to long. So i was thinking : I should make some change when the bitmaps take off 50 % of canvas. I want to tell algorithm that it should generate new locations (x,y) where it is free space.

My question is : How to render new location (x,y) in place where is free space.

In summary:

Things I know :

object location (x,y)
4 corners (x,y) of object
object width, height
canvas width, height

Any suggestions?

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