Prone script

-- By: StealthLava
-- LU: [14.03.10]

--[ Setup ]--
-- Locations
local YuujiKazamiGrisaia = script.Parent
local Player = game.Players.LocalPlayer
local Avatar = Player.Character
local Mouse = Player:GetMouse()

-- Emptys
local Hold = nil

--[ Get Items ]--
local Humanoid = Avatar:WaitForChild("Humanoid")
local Torso = Avatar:WaitForChild("Torso")
local RH = Torso:WaitForChild("Right Hip")
local LH = Torso:WaitForChild("Left Hip")

local RL = Avatar:WaitForChild("Right Leg")
local LL = Avatar:WaitForChild("Left Leg")

local RJ = Avatar:WaitForChild("HumanoidRootPart"):WaitForChild("RootJoint")

--[ Functions ]--
function CreateWeld(Part, CF)
	local w = Instance.new("Weld")
	w.Name = "LegWeld"
	w.Parent = Torso
	w.Part0 = Torso
	w.Part1 = Part
	w.C1 = CF
end

function StandUp()
	Humanoid.CameraOffset = Vector3.new(0, 0, 0)
	-- Right Leg
	RH.Part1 = RL

	-- Left Leg
	LH.Part1 = LL

	-- Delete Welds
	for i, s in pairs(Torso:GetChildren()) do
		if (s.Name == "LegWeld") and (s.ClassName == "Weld") then
			s:Destroy()
		end
	end

	-- Raise Character
	RJ.C0 = CFrame.new(0, 0, 0) * CFrame.Angles(0, 0, 0)
	RJ.C1 = CFrame.new(0, 0, 0) * CFrame.Angles(0, 0, 0)
end

--[ Hooks ]--
-- Controls
Mouse.KeyDown:connect(function(Key)
	if (Hold ~= nil) then return end
	if (string.upper(Key) ~= "X") and (string.lower(Key) ~= "C") then return end
	Hold = true

	if (Torso:FindFirstChild("LegWeld") == nil) and (string.lower(Key) ~= " ") then
		-- Right Leg
		RH.Part1 = nil
		CreateWeld(RL, CFrame.new(-0.4, 1.25, 0.5) * CFrame.fromEulerAnglesXYZ(math.rad(90),-0.25,0))

		-- Left Leg
		LH.Part1 = nil
		CreateWeld(LL, CFrame.new(0.4, 1.25, 0.5) * CFrame.fromEulerAnglesXYZ(math.rad(90),0.25,0))

		-- Lower Character
		RJ.C0 = CFrame.new(0, -2, 0) * CFrame.Angles(0, 0, 0)
		RJ.C1 = CFrame.new(0, 0, 0) * CFrame.Angles(0, 0, 0)

		-- Slow Walk Speed
		Humanoid.CameraOffset = Vector3.new(0, -2, 0)
		Humanoid.WalkSpeed = 32

	else
		StandUp()

		-- Normal Walk Speed
		Humanoid.CameraOffset = Vector3.new(0, 0, 0)
		Humanoid.WalkSpeed = 64

	end

	wait(0.5)

	Hold = nil
end)

-- Value Changed
Humanoid.Changed:connect(function()
	if (Humanoid.WalkSpeed > 32) and (Hold == nil) then StandUp() end
end)