Creating a timer in script

[robint]

Hi SU fans
Can anyone help me make a timer to display the interval (secs) of a falling object hitting a baseplate (see model)

Faust kindly contributed this to detect the object hitting the plate - it resets on impact and I loose all the time info on screen. There is no pause or stop action to replace reset AFAIK

onTouch { |toucher, position, normal|
MSPhysics::Simulation.reset
}

I have discovered the

start_timer and stop_timer

action but don't know how to use it
Ideally the interval result should be displayed on screen or otherwise accessible, and there should be a facility to have a coeff to adjust the result to the correct answer - frig factor (1s) as I noticed the on screen timer/fps is not accurate and depends on several settings (time step, linear damping et al)

Sorry to be a Ruby newbie but trying my best
and this could be so useful for dynamic simulation validation
Cheers

Robin

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falling block.skp