Player flight script

[benjoshwa (beebeezee)]

What I want to achieve is to fix these 2 issues:

1: I wanna make it so that when the player turns the camera around while moving forward (say the camera turns backwards) the momentum they had going forward is slowed down before turning around and going to the other direction the camera is pointing at I want to add inertia.

2: When I am holding W and press F, BoolValue.FWD becomes false so when I press F while holding W I just stay in the air till I press W again which is a small bug but considering that this is a combat game everything has to be smooth

Any help would be very appreciated

local UserInputService = game:GetService("UserInputService")
local RunService = game:GetService("RunService")
local Players = game:GetService("Players")

local player = Players.LocalPlayer
local character = player.Character or player.CharacterAdded:Wait()
local humanoid = character:FindFirstChild("Humanoid") :: Humanoid
local HRP = character:FindFirstChild("HumanoidRootPart") :: BasePart

local camera = game.Workspace.CurrentCamera

local Flying = false
local CanMove = true

local SpeedValue = 5 --// Will accelerate
local BackwardSpeedValue = 1
local SideSpeedValue = 3

local BoolValues = {
	["FWD"] = false,
	["BWD"] = false,
	["RHT"] = false,
	["LFT"] = false,
}

local connections = {}
local trashTable = {}

function initialLaunch()
	local BV = Instance.new("BodyVelocity")
	BV.Parent = HRP
	BV.MaxForce = Vector3.new(10000,10000,10000)
	BV.Velocity = HRP.CFrame.UpVector*250

	task.wait(0.3)
	BV:Destroy()
end

local FlightChecker = {
	[false] = function()
		Flying = true
		print("fly")

		local AlignOrient = Instance.new("AlignOrientation")
		AlignOrient.Parent = HRP
		trashTable["Orient"] = AlignOrient

		AlignOrient.Mode = Enum.OrientationAlignmentMode.OneAttachment
		AlignOrient.Attachment0 = HRP:FindFirstChild("RootAttachment")
		AlignOrient.Responsiveness = 50

		local AlignPos = Instance.new("AlignPosition")
		AlignPos.Parent = HRP
		trashTable["Position"] = AlignPos

		AlignPos.Mode = Enum.PositionAlignmentMode.OneAttachment;
		AlignPos.Attachment0 = HRP:FindFirstChild("RootAttachment")
		AlignPos.Responsiveness = 50

		AlignPos.MaxForce = 1000000
		AlignOrient.MaxTorque = 1000000

		AlignPos.Position = HRP.Position
		AlignPos.Responsiveness = 50

		print(BoolValues.FWD)

		connections["Flight"] = RunService.RenderStepped:Connect(function(dt)	
			if HRP.CFrame.LookVector:Dot(camera.CFrame.LookVector) <= 0 then --// player has forward momentum that needs to be stopped before turning around
				
				SpeedValue -= 0.3
				SpeedValue = math.min(SpeedValue, 5)
				
				print(SpeedValue)
				
				if SpeedValue <= 5 then
					print("can rotate")
				end
				
				AlignOrient.CFrame = CFrame.new(HRP.CFrame.LookVector)
			end
			
			AlignOrient.CFrame = CFrame.new(camera.CFrame.p, HRP.Position)
			

			if BoolValues.FWD then
				SpeedValue += 1 * dt * 20
				SpeedValue = math.min(SpeedValue, 50) 
				
				AlignPos.Position = HRP.Position + camera.CFrame.LookVector * SpeedValue
			elseif BoolValues.BWD then
				AlignPos.Position = HRP.Position - camera.CFrame.LookVector * BackwardSpeedValue
			elseif BoolValues.LFT then
				AlignPos.Position = HRP.Position - camera.CFrame.RightVector * SideSpeedValue
			elseif BoolValues.RHT then
				AlignPos.Position = HRP.Position + camera.CFrame.RightVector * SideSpeedValue
			end
		end)
	end,

	[true] = function()
		Flying = false
		trashTable.Position:Destroy()
		trashTable.Orient:Destroy()
		print("no fly")
	end,
}

UserInputService.InputBegan:Connect(function(input, gpe)
	if gpe then return end

	if input.KeyCode == Enum.KeyCode.F then
		FlightChecker[Flying]()
	end

	if Flying then
		if input.KeyCode == Enum.KeyCode.W then
			BoolValues.FWD = true
		end

		if input.KeyCode == Enum.KeyCode.S then
			BoolValues.BWD = true
		end

		if input.KeyCode == Enum.KeyCode.A then
			BoolValues.LFT = true
		end

		if input.KeyCode == Enum.KeyCode.D then
			BoolValues.RHT = true
		end
	end
end)

UserInputService.InputEnded:Connect(function(input, gpe)
	if gpe then return end

	if input.KeyCode == Enum.KeyCode.W then
		SpeedValue = 5
		BoolValues.FWD = false
	end

	if input.KeyCode == Enum.KeyCode.S then
		BoolValues.BWD = false
	end

	if input.KeyCode == Enum.KeyCode.A then
		BoolValues.LFT = false
	end

	if input.KeyCode == Enum.KeyCode.D then
		BoolValues.RHT = false
	end
end)