Touching? Problem

[mwforum@xxxxxxxxxxxxxxxxxx (Harvey Bornfield)]

Ralph
I have not the time to explore these ideas, but it would be interesting 
to reverse the names of the two candidates for contact in the touching? 
[first_turtle second_turtle],
and seeing whether issuing a second command, -
      touching?[second_turtle _first_turtle]
might trigger a Microworlds response to intercept and report the event.

It might also be necessary to "arm the interrupt" a second time, i.e., 
that once an event is reported; perhaps that Microworlds reporter needs 
a "refuel", needs to told to continue looking for succeeding instances 
of contact after an initial detection is made.

Another question is about the logic which employs the touching? command. 
Detected within a when [ ] or Done? [ ] might cause an event to be 
triggered but not behave in an anticipated way.

Give these explorations a whirl, and see what happens.

best regards,
Harvey


On Wednesday, February 12, 2003, at 09:12 AM, Ralph Wege wrote:

> My students are using the Touching? command in their games. Things work
> well if the turtle is moving into another turtle but if the other turtle
> collides with the stationary turtle, the collision is not detected. Is
> there a way to detect collisions no matter what is moving into what?
>
> Thank you
> Ralph Wege
>
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> MWForum@xxxxxxxxxxxxxxxxxx
> http://mia.openworldlearning.org/mwforum/
"Music is the one incorporeal entrance into the higher world of 
knowledge which comprehends mankind, but mankind cannot comprehend."
Ludwig van Beethoven
Ralph
I have not the time to explore these ideas, but it would be interesting to reverse the names of the two candidates for contact in the touching? [first_turtle second_turtle], 
and seeing whether issuing a second command, - 
touching?[second_turtle _first_turtle]
might trigger a Microworlds response to intercept and report the event.

It might also be necessary to "arm the interrupt" a second time, i.e., that once an event is reported; perhaps that Microworlds reporter needs a "refuel", needs to told to continue looking for succeeding instances of contact after an initial detection is made.

Another question is about the logic which employs the touching? command. Detected within a when [ ] or Done? [ ] might cause an event to be triggered but not behave in an anticipated way.

Give these explorations a whirl, and see what happens.

best regards,
Harvey


On Wednesday, February 12, 2003, at 09:12 AM, Ralph Wege wrote:

> My students are using the Touching? command in their games. Things work
> well if the turtle is moving into another turtle but if the other turtle
> collides with the stationary turtle, the collision is not detected. Is
> there a way to detect collisions no matter what is moving into what?
>
> Thank you
> Ralph Wege
>
> _______________________________________________
> MWForum mailing list
> MWForum@xxxxxxxxxxxxxxxxxx
> http://mia.openworldlearning.org/mwforum/
"Music is the one incorporeal entrance into the higher world of knowledge which comprehends mankind, but mankind cannot comprehend."
Ludwig van Beethoven