force after collision

[mic]

hello! tell me please, how to activate some force only after collision?

i want to apply gravity to the pieces of rbd fractured object only when the collision with it happened.

my solution is incorrect:

Activation =

if(dopfield("/obj/dynamics", "rbdobject1", "Impacts", "Impacts", 0, time)>0, 1, 0)

how should i do this simple action? thank you!

[Jason]

hello! tell me please, how to activate some force only after collision?

i want to apply gravity to the pieces of rbd fractured object only when the collision with it happened.

my solution is incorrect:

Activation =

if(dopfield("/obj/dynamics", "rbdobject1", "Impacts", "Impacts", 0, time)>0, 1, 0)

how should i do this simple action? thank you!

I think you're looking for the dopnumrecords() expression, perhaps?

[mic]

I think you're looking for the dopnumrecords() expression, perhaps?

yes, Jason, you are right, but for all how get the same problem i want to explain wider:

dopnumrecords("/obj/dopnet1", "objectname", "Impacts", "Impacts") - this will give us a signal that the colission happens. but the impact data only exists on the frames where impact occurs/ If we want to know if an impact has ever occured we should use Modify Data DOP

activation = dopnumrecords...

Value name = hasBeenHit

Value Type = Boolean

Value Float = 1

and then, using dopfield expression manipulate this new data)

thanks to 'Houdini on the Spot' book, i read this 'trick' from it! =)

[kleer001]

or you could spawn new particles with the same attributes as the old excecpt they're gettin' the new force.