how to make a pool table simulations ( everything's floating as if in outerspace )

RogerT

Hi guys,
I am trying to make a pool table simulation, but I can't figure out how to set some friction between a ball and the table surface that it is rolling over... because without this friction balls are flying as if in zeroG and don't come to a stop...

Any ideas?
Thanks!

RogerT

got it
body:setLinearDamping(5)
body:setAngularDamping(5)

ar2rsawseen

Also b2.Body:setGravityScale(scale)

plamen

well , gravity should be set to zero. Because we look top-down , the gravity components of x and y are 0. But the important part is not just the damping and also the friction. This will define not just how slow the balls will stop moving but it will do rotation of balls when they hit walls at angle. Another important thing is restitution which defines how much balls will bounce after the collision with walls or another ball. It will be more realistic if you slow down the balls with friction rather with dampening. Of course both should be used for best results.

ar2rsawseen

@plamen heh, good point. Have never created a billiard game before

plamen

@ar2rsawseen: heh, you know i am working on same project :-) well almost , i just use airships and cannonballs bumping each other... I've been through same issues.