FootstepSounds

local materialSounds =
{
    [Enum.Material.Grass] = "rbxassetid://507863105",
    [Enum.Material.Metal] = "rbxassetid://2812417769",
    [Enum.Material.DiamondPlate] = "rbxassetid://2812417769",
    [Enum.Material.Pebble] = "rbxassetid://131436155",
    [Enum.Material.Wood] = "rbxassetid://4085869581",
    [Enum.Material.WoodPlanks] = "rbxassetid://4085869581",
    [Enum.Material.Plastic] = "rbxassetid://4453297814",
    [Enum.Material.SmoothPlastic] = "rbxassetid://4453297814",
    [Enum.Material.Sand] = "rbxassetid://265653329",
}


local char = script.Parent

local humanoid = char:WaitForChild("Humanoid")
local hrp = char:WaitForChild("HumanoidRootPart")

local footstepsSound = hrp:WaitForChild("Running")

humanoid:GetPropertyChangedSignal("FloorMaterial"):Connect(function()

    local floorMat = humanoid.FloorMaterial
    local soundOfMat = materialSounds[floorMat]

    if soundOfMat then
        footstepsSound.SoundId = soundOfMat
    end
end)