Double jump script (Roblox studio)

local UserInputService = game:GetService("UserInputService")

local localPlayer = game.Players.LocalPlayer

local character

local humanoid

local canDoubleJump = false

local hasDoubleJumped = false

local oldPower

local TIME_BETWEEN_JUMPS = 0.1 -- The time before you can do another jump

local DOUBLE_JUMP_POWER_MULTIPLIER = 2 -- The amount of times you can jump in the air

function onJumpRequest()

if not character or not humanoid or not character:IsDescendantOf(workspace) or

humanoid:GetState() == Enum.HumanoidStateType.Dead then

return

end



if canDoubleJump and not hasDoubleJumped then

hasDoubleJumped = true

humanoid.JumpPower = oldPower * DOUBLE_JUMP_POWER_MULTIPLIER

humanoid:ChangeState(Enum.HumanoidStateType.Jumping)

end

end

local function characterAdded(newCharacter)

character = newCharacter

humanoid = newCharacter:WaitForChild("Humanoid")

hasDoubleJumped = false

canDoubleJump = false

oldPower = humanoid.JumpPower



humanoid.StateChanged:connect(function(old, new)

if new == Enum.HumanoidStateType.Landed then

canDoubleJump = false

hasDoubleJumped = false

humanoid.JumpPower = oldPower

elseif new == Enum.HumanoidStateType.Freefall then

wait(TIME_BETWEEN_JUMPS)

canDoubleJump = true

end

end)

end

if localPlayer.Character then

characterAdded(localPlayer.Character)

end