How to check how far is a player from an NPC?

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1

Hey there, this is a quick question. How would I go about to check how far an NPC is from a player, and if it is, for example, 10 studs away, then it would do something.

2

you can use .Magnitude like so:

(character.Position - NPC.Position).Magnitude

so It would be formatted in a local script:

local RootPart = game.Players.LocalPlayer.Character.HumanoidRootPart
local NPC = game.NPC.Head

while true do
    if (RootPart.Position - NPC.Position).Magnitude <= 10 then
        -- do something
    end
    wait()
end
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3

Use .magnitude, the solution to your problem should be easy to find through simply searching through the forum( there are plenty of topics on it) or the wiki

local Npc = ---Npc
local player = game.players.Localplayer

local dist = (Npc.HumaniodRootPart.Position - player.HumaniodRootPart.Position).magnitude

  if dist <= 10 then

---code
end
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4

Magnitude returns the length of a given vector. To get the distance, you would do: (thing1.Position - thing2.Position).Magnitude. Magnitude is a scalar, so you can compare it with a value.

Like so:

local dist = (thing1.Position - thing2.Position).Magnitude

if dist <= 10 then
    print("player is less than 10 studs away from the NPC")
end

print(thing1.Name .. " is " .. dist .. " studs away from " .. thing2.Name)

Thing1 and Thing2 are basically examples, so you need to replace them with the player’s hrp (humanoid root part) and the NPC’s hrp

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5

I realize the answer has been covered three times, but to give you an idea of what’s basically happening. magnitude takes 2 vector positions, and through subtraction, gives you the distance between the two points.

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