Roblox Script Generated by ScripterAI

"can you make the humanoid double jump after pressing spacebar twice and move the humanoid up a little bit with custom animation"

-- local script 
local player = game.Players.LocalPlayer
local character = player.Character or player.CharacterAdded:Wait()
local humanoid = character:WaitForChild("Humanoid")
local UserInputService = game:GetService("UserInputService")

local doubleJumpAnimation = Instance.new("Animation")
doubleJumpAnimation.AnimationId = "rbxassetid://YourAnimationIDHere"
local doubleJumpAnimTrack = humanoid:LoadAnimation(doubleJumpAnimation)

local canDoubleJump = false
local isJumping = false

local function onJumpRequest()
	if not isJumping then
		isJumping = true
		humanoid.Jump = true
	elseif canDoubleJump then
		canDoubleJump = false
		humanoid.JumpPower = 0
		doubleJumpAnimTrack:Play()
		wait(0.15)
		humanoid.JumpPower = 50
		humanoid.Jump = true
	end
end

local function onStateChanged(_, state)
	if state == Enum.HumanoidStateType.Landed then
		isJumping = false
		canDoubleJump = false
	elseif state == Enum.HumanoidStateType.Freefall then
		if not canDoubleJump and isJumping then
			canDoubleJump = true
		end
	end
end

UserInputService.JumpRequest:Connect(onJumpRequest)
humanoid.StateChanged:Connect(onStateChanged)