Algodoo

Whenever an object comes close to another object of the same color, the objects pass over some of their variables to each other. This provides a simple way of interaction.

Here: The aim is to do an automatical check of
"connect 4", i use the picture, which Xray made, thanks to him.
How does it work? I just describe in one direction: Left-Right.
Two objects come close to each other, a laser with resticted
range will trigger, if they come close enough.
Both objects contain local variables
Li=1 (Links=Left), Re=1 (Rechts=Right).
If they are close enough, the right object gives his Li-value
to the left object, and the left object gives his Re-value
to the right. So from 1...1____1...1 it will become
2...0_0...2 after the interaction.
If a third object comes near, it will be from
2...0_0...2_____1...1 to
2...0_1...0_0...3 and a little later 3...0_0...0_0...3
and one can see at the edge of this row, how many
objects of the same color are "attached" to the row.

in the connect-4-application it still has a little bug
which comes from the fact that the objects do
unwanted interations at their highest point of rebump.
I must correct this by means of script , still to be done.