Scratch

That looks scary on my phone  . I'll take a look later when I'm on my laptop, thanks.

Oh, it's for the Portal clone, isn't it?  The companion cube, must be.

Wow. Did I seriously script this

when gf clicked

go to x: (0) y: (-90)
set [xv v] to [0]
set [yv v] to [0]
forever  

set [bleh v] to [0]
set [xv v] to ((xv) * (0.9))
change x by (xv)
if <touching color [#000008]?> 

change x by ((xv) * (-1))
set [xv v] to [0]
end

set [yv v] to ((yv) * (0.9))
change y by (yv)
if <touching color [#000008]?> 

set [ytempstore v] to (yv)
change y by ((yv) * (-1))
set [yv v] to [0]
end

if <(yv) < [4]> 

change y by (-1)
if <not <touching color [#000008]?>> 

change [yv v] by (-1)
end

change y by (1)
end

set [tempdirstore v] to (direction)
point in direction (90 v)
change y by (-1)
if <touching color [#000008]?>

change x by (24)
if <touching color [#000008]?>

set [side v] to [l]
change x by (-48)
if <touching color [#000008]?> 

set [side v] to [none]
end

change x by (24)
else

change x by (-48)
if <touching color [#000008]?> 

set [side v] to [r]
end

change x by (24)
end

else

set [side v] to [none]
end

change y by (1)
point in direction (tempdirstore)
if <(side) = [r]>

turn cw (ytempstore) degrees
else

turn ccw (ytempstore) degrees
end

end

Okay, I'll probably have time to work on 2D rigid body physics over the weekend.  I've compiled a bunch of PDFs about this stuff, because I intended to do some legitimate research and find out the real answer, rather than trying random things and hoping they'd work. 

I've got a bunch of crazy computer science/physics papers saved in a "Physics Programming" folder.  I just haven't had the chance to decipher them yet.

amcerbu is quite amazing at this stuff. I'm good with the whole scratch thing, but hopelessly flail at math.