local Library = loadstring(game:HttpGet("https://raw.githubusercontent.com/bloodball/-back-ups-for-libs/main/wizard"))()
local Window = Library:NewWindow("Speed Hack")
local Section = Window:NewSection("Controls")
local RunService = game:GetService("RunService")
local Players = game:GetService("Players")
local player = Players.LocalPlayer
local desiredSpeed = 16
local speedHackEnabled = false
local connections = {}

local function applySpeed(humanoid)
    if humanoid and speedHackEnabled then
        humanoid.WalkSpeed = desiredSpeed
    end
end

local function setupEnforcement(humanoid)
    for _, conn in ipairs(connections) do
        conn:Disconnect()
    end
    connections = {}
    
    if humanoid then
        applySpeed(humanoid)
        local propConn = humanoid:GetPropertyChangedSignal("WalkSpeed"):Connect(function()
            if speedHackEnabled and humanoid.WalkSpeed ~= desiredSpeed then
                humanoid.WalkSpeed = desiredSpeed
            end
        end)
        table.insert(connections, propConn)
        local heartbeatConn = RunService.Heartbeat:Connect(function()
            if speedHackEnabled and humanoid.WalkSpeed ~= desiredSpeed then
                humanoid.WalkSpeed = desiredSpeed
            end
        end)
        table.insert(connections, heartbeatConn)
    end
end

local function onCharacterAdded(character)
    local humanoid = character:WaitForChild("Humanoid", 10)
    if humanoid then
        setupEnforcement(humanoid)
    end
end

if player.Character then
    onCharacterAdded(player.Character)
end
player.CharacterAdded:Connect(onCharacterAdded)

Section:CreateTextbox("WalkSpeed", function(input)
    local speed = tonumber(input)
    if speed then
        desiredSpeed = speed
        speedHackEnabled = true
        local humanoid = player.Character and player.Character:FindFirstChildOfClass("Humanoid")
        applySpeed(humanoid)
    end
end)

Section:CreateToggle("Enable Hack", function(state)
    speedHackEnabled = state
    local humanoid = player.Character and player.Character:FindFirstChildOfClass("Humanoid")
    if not state and humanoid then
        humanoid.WalkSpeed = 16
        for _, conn in ipairs(connections) do
            conn:Disconnect()
        end
        connections = {}
    elseif state and humanoid then
        setupEnforcement(humanoid)
    end
end)