hi, i'm scratching my head over a situation which could be illustrated like this:

there are some classes stacked into each other. a city, with a varying amount of roads, where each of these roads can have a varying amount of both cars and pedestrians. now what needs to happen is:
-if any one of the cars does honk, then any of the pedestrians at the same location in the city as that car, drop their pants.
-The pedestrian does not have to be on the same road as the car, just the same city location.

now the original plan was to funnel the horn signal into the road the car is on, then pass it from there to the city, then ask the city if there is any road on that location, then let the city ask any roads which cross this point if there are any pedestrians there, then let them jump, but this is oh so tedious.

a friend told me there is something in ActionScript called EventListener and EventDispatcher, which would let all pedestrians listen to any horn signals directly and act accordingly, even if they haven't seen a car before ... and there should be something similar in Java right? which would hopefully be not too difficult to use in Processing?

i'm currently trying a workaround using OSC messages, but would be happy if i could do without.