Jetpackscript doesnt work

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#1

Hello, im making a jetpack script. For now, im making it without model.
But I have a problem. Velocity doesnt work and inputEnded event doesnt work.
This is what i have.
robloxapp-20200613-1556119.wmv (1.4 MB)

Here is code:

game.Players.PlayerAdded:Connect(function(plr)
plr.CharacterAdded:Connect(function(char)
	--//Variables\\--
local key = 'Q'	
	local humroot = char:FindFirstChild("HumanoidRootPart")
	--//Services\\--
	
	local UIS = game:GetService("UserInputService")
	local canThrust = false
	
	UIS.InputBegan:Connect(function(input, isTyping)
		isTyping = false
		if input.KeyCode == Enum.KeyCode[key] then
			canThrust = true
			isTyping = true
			if isTyping == true and canThrust == true then
			local BV = Instance.new("BodyVelocity", humroot)
			BV.MaxForce = Vector3.new(math.huge,math.huge,math.huge)
			BV.Velocity = humroot.CFrame.lookVector * 100
				
				UIS.InputEnded:Connect(function()
					if input.KeyCode == Enum.KeyCode[key] then
						isTyping = false
						canThrust = false
						BV:Destroy()
					end
				end)
			end
		end
	end)
end)

end)

#2

Have you tried debugging to check where it stops working? Also, you’re checking if the game proccessed the event. (if the player chatted etc)

Also, you’re doing this with a serverscript, userinputservice only works on the client, consider using remotevents.

#3

On output there is no error. And need help with input ended. How can i detect if player is holding the [key]?
And thanks for serverscript idea!

#4

There’s no error because it just doesn’t run.

#5

local JetpackEvent = game.ReplicatedStorage.JetpackEvent

local plr = game.Players.LocalPlayer

local char = plr.Character --Error is here. It says : ServerScriptService.JetpackScriptGlobal:3: attempt to index nil with ‘Character’.

local canThrust = false

local humroot = char:FindFirstChild(“HumanoidRootPart”)

JetpackEvent.OnServerEvent:Connect(function()

local BV = Instance.new(“BodyVelocity”, humroot)

BV.MaxForce = Vector3.new(math.huge,math.huge,math.huge)

BV.Velocity = humroot.CFrame.LookVector*60

wait(0.6)

BV:Destroy()

end)

When i try to run, its says tried to index nil with character

#6

wait did you put this code in a local script or normal script. you cant do game.Players.LocalPlayer in a normal script only local script

#7

Why are you creating a listener for the player? UserInputService only works on the client, so I’m assuming this is a LocalScript. You don’t need to set up a listener on the client. I would put this in StarterCharacterScripts and get the Player/Character with

local plr = game.Players.LocalPlayer
local char = plr.Character or plr.CharacterAdded:Wait()

Also, by creating the InputEnded listener inside of InputBegan, you will be creating a new listener every single Q key press, which will create memory leaks. These functions should be separate of each other, with canThrust being a global variable.

And I’m not sure why you’re manually setting isTyping because it will return a useful bool that you’re basically rendering useless.

With those suggestions, I quickly rewrote your code

LocalScript inside of StarterCharacterScripts:

--//Services\\--
local UIS = game:GetService("UserInputService")

--//Variables\\--
local plr = game.Players.LocalPlayer
local char = plr.Character or plr.CharacterAdded:Wait()
local humroot = char.HumanoidRootPart
local key = 'Q'
local canThrust = false -- make this global so the UIS listeners can still interact


--//Listeners\\--
UIS.InputBegan:Connect(function(input, isTyping) -- create body velocity
	if input.KeyCode == Enum.KeyCode[key] and not isTyping then
		canThrust = true
		
		local BV = Instance.new("BodyVelocity")
		BV.MaxForce = Vector3.new(math.huge,math.huge,math.huge)
		BV.Velocity = humroot.CFrame.lookVector * 100
		BV.Parent = humroot
	end
end)


UIS.InputEnded:Connect(function(input, isTyping) -- remove body velocity
	if input.KeyCode == Enum.KeyCode[key] and not isTyping then
		canThrust = false
		local BV = humroot:FindFirstChildOfClass("BodyVelocity") -- make sure BV exists
		if BV then
			BV:Destroy()
		end
	end
end)
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