BRITISH ARMY NO JUMP COOLDOWN OPEN SOURCE

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

local player = Players.LocalPlayer

local function setupCharacter(character)
    local humanoid = character:WaitForChild("Humanoid")

    humanoid.UseJumpPower = true
    humanoid.JumpPower = 47

    local canJump = true

    humanoid.StateChanged:Connect(function(_, newState)
        if newState == Enum.HumanoidStateType.Landed
        or newState == Enum.HumanoidStateType.Running then
            canJump = true
        end
    end)

    UserInputService.JumpRequest:Connect(function()
        if not humanoid or not humanoid.Parent then return end

        if canJump and humanoid.FloorMaterial ~= Enum.Material.Air then
            canJump = false
            humanoid:ChangeState(Enum.HumanoidStateType.Jumping)
        end
    end)
end

if player.Character then
    setupCharacter(player.Character)
end

player.CharacterAdded:Connect(setupCharacter)