[Smileys]

for the second question, yes.

https://sampwiki.blast.hk/wiki/OnPlayerGiveDamage

https://sampwiki.blast.hk/wiki/OnPlayerTakeDamage

https://sampwiki.blast.hk/wiki/OnPlayerWeaponShot

https://sampwiki.blast.hk/wiki/OnVehicleDamageStatusUpdate

for the first one, idk, don't think so, maybe with SetPlayerVelocity or something, might be possible, but it'll probably look terrible.

https://sampwiki.blast.hk/wiki/SetPlayerVelocity
https://sampwiki.blast.hk/wiki/GetPlayerVelocity

although with a vehicle it IS possible, it'll work nice n smooth.

https://sampwiki.blast.hk/wiki/SetVehicleVelocity

https://sampwiki.blast.hk/wiki/GetVehicleVelocity

or you could use SetVehicleSpeed, or something like that( those are custom functions, ****** for them ).