Vector.Distance

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Function
Syntax	Vector:Distance( Vector )
Description:
Returns the Distance of the first Vector : from the second ( Vector )
Returns:	Float
In Object:	Vector
Realm:
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Examples

Description	Returns the distance between the two players (So if victim is at 100,100,500, and target is at 100,100,200)
Used on
Code	local victimpos = player.GetByID( 1 ):GetPos() local targetpos = player.GetByID( 2 ):GetPos() return victimpos:Distance( targetpos )
Output	300

a:Distance( b ) is the same thing as (a - b):Length()
It is computationally expensive to get the length of a vector. If you're only using the length for comparison, consider alternatives.