overlapping detection problem (capx included)

Hi everyone!

I have a problem with overlapping detection.

My goal is automatically create appropriate snow sprites on existing ground tiles.

On top of every "groundtile" instance I create an invisible "collisionchecker" instance

When I try to check if my groundtile overlaps collisionchecker both on +x and -x offsets, the condition is never true, even if my groundtile is between two instances of collisionchecker

My english is not that good so I can't really describe the problem but here is the link to the capx. It should be pretty clear. I added some comments.

dl.dropboxusercontent.com/u/18217655/hi.capx

Thank you

up

You have to repick all the collision checker to check with the groundtile because your 1st condition already pick the collision checker at the middle.

dropbox.com/s/hxedsh61u5tbtq7/bye.capx

Thank you!