How would I add jump momentum to this script

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#1

jump momentum as in you keep your speed through the air scaled by walk speed and a coefficient VAR?

-- Stats
local Stats = {
	jumpDelay = 1,

	-- walk speed
	defaultSpeed = 10,
	sprintSpeed = 30,

	-- jump height
	sprintJump = 20,
	defaultJump = 10
}

-- Services
local inputService = game:GetService("UserInputService")
local players = game:GetService("Players")

-- Variables
local player = players.LocalPlayer
local character = player.Character or player.CharacterAdded:wait()
local humanoid = character:WaitForChild("Humanoid")

-- Events
local running = false
local jumpDebounce = false

local jumpActive = true


type void = {}; local function activateJump(value: boolean): void
	if value then
		jumpActive = true

		if not jumpDebounce then
			humanoid:SetStateEnabled(Enum.HumanoidStateType.Jumping, true)
		end
	else
		task.wait()

		jumpActive = false

		if jumpDebounce then
			humanoid:SetStateEnabled(Enum.HumanoidStateType.Jumping, false)
		end
	end
end

-- Sprint
inputService.InputBegan:Connect(function(input)
	if (input.KeyCode == Enum.KeyCode.LeftShift or input.KeyCode == Enum.KeyCode.RightShift) and not running then
		running = true

		if humanoid then
			character.Humanoid.WalkSpeed = Stats.sprintSpeed
		end

		-- Desktop / Console
	elseif (input.KeyCode == Enum.KeyCode.Space or input.KeyCode == Enum.KeyCode.ButtonA or input.KeyCode == Enum.KeyCode.ButtonX) and jumpActive then
		activateJump(false)
	end
end)

inputService.InputEnded:Connect(function(input)
	if not inputService:IsKeyDown(Enum.KeyCode.LeftShift) and not inputService:IsKeyDown(Enum.KeyCode.RightShift) and running then
		running = false

		if humanoid then	
			character.Humanoid.WalkSpeed = Stats.defaultSpeed
		end

		-- Desktop / Console
	elseif (input.KeyCode == Enum.KeyCode.Space or input.KeyCode == Enum.KeyCode.ButtonA or input.KeyCode == Enum.KeyCode.ButtonX) and not jumpActive then
		activateJump(true)
	end
end)

-- Jump
inputService.JumpRequest:Connect(function()
	if jumpActive and not jumpDebounce then
		jumpDebounce = true

		if not jumpActive then
			humanoid:SetStateEnabled(Enum.HumanoidStateType.Jumping, true)
		end

		if running then
			humanoid.JumpHeight = Stats.sprintJump
		else
			humanoid.JumpHeight = Stats.defaultJump
		end

		task.wait(Stats.jumpDelay)

		jumpDebounce = false

		if jumpActive then
			humanoid:SetStateEnabled(Enum.HumanoidStateType.Jumping, true)
		end
	end
end)

-- Mobile
if inputService.TouchEnabled then
	local touchGui = player.PlayerGui:WaitForChild("TouchGui")
	local touchControlFrame = touchGui:WaitForChild("TouchControlFrame")
	local jumpButton = touchControlFrame:WaitForChild("JumpButton")

	jumpButton.InputBegan:Connect(function(input)
		if input.UserInputType == Enum.UserInputType.Touch and jumpActive then
			activateJump(false)
		end
	end)

	jumpButton.InputEnded:Connect(function(input)
		if input.UserInpuAtType == Enum.UserInputType.Touch and not jumpActive then
			activateJump(true)
		end
	end)
end