How to do damage that depends on the distance?

Hello, i have a grenade with big damage (1200) and I want the damage to be distributed depending on the distance. Something like this:

i have this line
hit.Parent.Humanoid:TakeDamage(damage/distance + 0.1)
(0.1 made to remove division by zero)
but if I am at the maximum distance from the grenade, I will get 120 damage, which will be fatal, and I don’t need it.

(I didn’t find anything similar on the forum)

You can get the magnitude (distance) from the player to the explosion

local grenade = --grenade
local character = --character

local magnitude = (char.HumanoidRootPart.Position - grenade.Position).Magnitude -- get distance
--take damage

Roblox has a code sample for this, hopefully it helps.

local function customExplosion(position, radius, maxDamage)

	local explosion ="Explosion")

	explosion.BlastPressure = 0 -- this could be set higher to still apply velocity to parts

	explosion.DestroyJointRadiusPercent = 0 -- joints are safe

	explosion.BlastRadius = radius

	explosion.Position = position

	-- set up a table to track the models hit

	local modelsHit = {}

	-- listen for contact

	explosion.Hit:Connect(function(part, distance)

		local parentModel = part.Parent

		if parentModel then

			-- check to see if this model has already been hit

			if modelsHit[parentModel] then



			-- log this model as hit

			modelsHit[parentModel] = true

			-- look for a humanoid

			local humanoid = parentModel:FindFirstChild("Humanoid")

			if humanoid then

				local distanceFactor = distance / explosion.BlastRadius -- get the distance as a value between 0 and 1

				distanceFactor = 1 - distanceFactor -- flip the amount, so that lower == closer == more damage

				humanoid:TakeDamage(maxDamage * distanceFactor) -- TakeDamage to respect ForceFields




	explosion.Parent = game.Workspace


customExplosion(, 10, 0), 12, 50)

If you don’t want to use the default roblox explosion you can still use the distanceFactor calculation to determine the damage pretty sure, by using Magnitude as the above reply.


Yes! This works really good. Thank you

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