Make My Projectile Only Damage Player Once

[cretace0us]

fireBall.Touched:Connect(function(Part)
		local isRolling = Part.Parent.Humanoid.isRolling
		
		if Part.Name == "Fireball" then
			local fireballPos = fireBall.CFrame.Position
			fireBall:Destroy()
			local explosion = Instance.new("Explosion")
			explosion.Parent = workspace
			explosion.BlastRadius = 0
			explosion.BlastPressure = 0
			explosion.Position = fireballPos
			
			local explode = game.SoundService.Fireball.FireballExplode:Clone()
			explode.Parent = humanoidRootPart
			explode:Play()
		end
		
		if Part.Parent:FindFirstChild("Humanoid") and Part.Parent:WaitForChild("Humanoid").Parent ~= character and isRolling.Value == false then
			fireBall.CanTouch = false
			fireBall:Destroy()
			local targetHum = Part.Parent:WaitForChild("Humanoid", 0.5)
			local targetChar = Part.Parent
			
			targetHum:TakeDamage(3)
			
			local explode = game.SoundService.Fireball.FireballExplode:Clone()
			explode.Parent = humanoidRootPart
			explode:Play()
			
			coroutine.wrap(function() -- for ragdolling
				wait(0.25)
				local r = require(game:GetService("ReplicatedFirst").Ragdoll)
				r.RagdollCharacter(targetChar)
				print("rag dolled")
				
				local targetVelo = Instance.new('BodyVelocity')
				targetVelo.MaxForce = Vector3.new(5000, 5000, 5000)
				targetVelo.Velocity = humanoidRootPart.CFrame.LookVector * 30
				targetVelo.Parent = targetChar.HumanoidRootPart
				
				task.wait(0.2)
				targetVelo:Destroy()
				
				task.wait(0.8)
				
				r.UnRagdollCharacter(targetChar)
			end)()
			
			local particleClone = game.ServerStorage.Fireball.ParticleEmitter:Clone() -- for fire proc particles
			particleClone.Parent = Part.Parent.HumanoidRootPart
			local burningSFX = burning:Clone()
			burningSFX.Parent = Part.Parent.HumanoidRootPart
			burningSFX:Play()
			
			targetHum:TakeDamage(0.5)
			task.wait(1)
			targetHum:TakeDamage(0.5)
			task.wait(1)
			targetHum:TakeDamage(0.5)
			task.wait(1)
			targetHum:TakeDamage(0.5)
			task.wait(1)
			targetHum:TakeDamage(0.5)
			
			particleClone.Enabled = false
			Debris:AddItem(particleClone, 1)
			burningSFX:Destroy()
		end
		wait(4)
		fireBall:Destroy()
	end)

I want to make it so the player is only damaged once, but since the player has multiple body parts the projectile ends up hitting 7 times. I have looked for solutions on the forum but could not find any, and I’ve tried making it so if the projectile hits a certain part like the players torso they’d take damage, but it still did not work.

[TheLazyRaven (Raven)]

Have a boolean outside the touched function.
Something like this:

local sillyNoobGotHit = false

fireBall.Touched:Connect(function(part)
    if sillyNoobGotHit == false then
        sillyNoobGotHit = true
        --damage code here
        sillyNoobGotHit = false --only necessary if you don't disconnect the function
    end
end)

[9pwnr]

You need a debounce.
I can give you an example:

local debounce = false

if debounce == false then
    debounce = true
    task.wait(1)
end
debounce = false

[cretace0us]

I did this, and it seemed to lower the number of times the player is hit from 7 to 4. I made the boolean = false in different places to, but the outcome did not change. Is there anything I could be missing?

[TheLazyRaven (Raven)]

The debounce/cooldown should wrap the entire function, preventing it from executing until the damage portion has been fully executed. If done correctly then the hits should be 1 time, otherwise it would remain 7 so perhaps your problem lies elsewhere if you’ve fixed this portion of the code

[me_abdulhamid (Rascade_Yuji)]

You can try disabling the CanTouch property in the fireball after it touches the person make sure to add a wait though.

[TheLazyRaven (Raven)]

What if it hits someone else then

[cretace0us]

so i put a print statement after the debounce turns to false, and it turns out it goes false everytime the fireball touches ANY object, so perhaps that’s where my problem lies.

local rs = game:GetService("ReplicatedStorage")
local fireBall = rs.FireballCast
local Debris = game:GetService("Debris")
local debounce = false

fireBall.OnServerEvent:Connect(function(Player)
	
	local character = Player.Character
	local humanoidRootPart = character.HumanoidRootPart
	local FireAnim = character.Humanoid.Animator:LoadAnimation(game.ServerStorage.Animations.FireballCast)
	local FireSFX = game.SoundService.Fireball.FireballSFX
	local chargeSFX = game.SoundService.Fireball.MagicCharge
	local fireExplode = game.SoundService.Fireball.FireballExplode
	local burning = game.SoundService.Fireball.Burning

	FireAnim:Play()
	local charge = game.SoundService.Fireball.MagicCharge:Clone()
	charge.Parent = humanoidRootPart
	charge:Play()
	
	task.wait(1.1)
	
	local fire = game.SoundService.Fireball.FireballSFX:Clone()
	fire.Parent = humanoidRootPart
	fire:Play()
	
	local fireBall = game.ServerStorage.Fireball:Clone()
	
	fireBall.Parent = game.Workspace
	
	fireBall:SetNetworkOwner(game:GetService('Players'):GetPlayerFromCharacter(character))
	
	fireBall.CFrame = humanoidRootPart.CFrame * CFrame.new(0, 0, -1)
	
	local bodyVelo = Instance.new('BodyVelocity')
	bodyVelo.MaxForce = Vector3.new(10000, 10000, 10000)
	bodyVelo.Velocity = humanoidRootPart.CFrame.LookVector * 100
	bodyVelo.Parent = fireBall
	
	fireBall.Touched:Connect(function(Part)
		
		if Part.Name == "Fireball" then
			local fireballPos = fireBall.CFrame.Position
			fireBall:Destroy()
			local explosion = Instance.new("Explosion")
			explosion.Parent = workspace
			explosion.BlastRadius = 0
			explosion.BlastPressure = 0
			explosion.Position = fireballPos

			local explode = game.SoundService.Fireball.FireballExplode:Clone()
			explode.Parent = humanoidRootPart
			explode:Play()
		end
		
		if debounce == false then
			debounce = true
			
			local isRolling = Part.Parent.Humanoid.isRolling

			if Part.Parent:FindFirstChild("Humanoid") and Part.Parent:WaitForChild("Humanoid").Parent ~= character and isRolling.Value == false then
				fireBall.CanTouch = false
				fireBall:Destroy()
				local targetHum = Part.Parent:WaitForChild("Humanoid", 0.5)
				local targetChar = Part.Parent

				targetHum:TakeDamage(3)
				
				local explode = game.SoundService.Fireball.FireballExplode:Clone()
				explode.Parent = humanoidRootPart
				explode:Play()

				coroutine.wrap(function() -- for ragdolling
					wait(0.25)
					local r = require(game:GetService("ReplicatedFirst").Ragdoll)
					r.RagdollCharacter(targetChar)
					print("rag dolled")

					local targetVelo = Instance.new('BodyVelocity')
					targetVelo.MaxForce = Vector3.new(5000, 5000, 5000)
					targetVelo.Velocity = humanoidRootPart.CFrame.LookVector * 30
					targetVelo.Parent = targetChar.HumanoidRootPart

					task.wait(0.2)
					targetVelo:Destroy()

					task.wait(0.8)

					r.UnRagdollCharacter(targetChar)
				end)()

				local particleClone = game.ServerStorage.Fireball.ParticleEmitter:Clone() -- for fire proc particles
				particleClone.Parent = Part.Parent.HumanoidRootPart
				local burningSFX = burning:Clone()
				burningSFX.Parent = Part.Parent.HumanoidRootPart
				burningSFX:Play()

				targetHum:TakeDamage(0.5)
				task.wait(1)
				targetHum:TakeDamage(0.5)
				task.wait(1)
				targetHum:TakeDamage(0.5)
				task.wait(1)
				targetHum:TakeDamage(0.5)
				task.wait(1)
				targetHum:TakeDamage(0.5)

				particleClone.Enabled = false
				Debris:AddItem(particleClone, 1)
				burningSFX:Destroy()
			end
			wait(4)
			fireBall:Destroy()
		end
		debounce = false
		print("debo false")
	end)
end)

I’ve checked this before, and the 59th line is why the touched function keeps going off, any idea on how to check if the part is player, THEN to check if the said player has “isRolling” in their humanoid?? I tried earlier and I had no idea where to start

[TheLazyRaven (Raven)]

Check if the hit part contains a humanoid. If there are other objects with humanoids then confirm the part.Parent.Name is in Players