Algodoo

Good concept!

I agree with Kilinich, but I can't figure out why the boxes are not colliding with the pavement and turning red immediately.

@Kilinich
Thanks

@s_noonan
I've tweaked around with the coding, and now, it may turn red immediately

faytree,

You may have misunderstood me. I thought that the boxes would collide with the pavement and turn red immediately since the share the same collision layer. I wasn't requesting that they do so. I was just wondering why they didn't. After looking again I see that the pavement is killer and I suspect that the boxes are getting killed before they have a chance to collide. Is this what is happening or am I missing something?

ooh, now I understand.
I program to box to turn red and automatically turned into barriers if the boxes collide each other. The road is turned into a killer so that it would prevent the boxes from colliding each other and turn into a barrier

Thanks, that's exactly what I wanted to know. I appreciate that you make scenes which have ideas I haven't seen before.