--[[
	Original Sonic Script with Sprint Button & Glitch Fix
]]
local Players = game:GetService("Players")
local RunService = game:GetService("RunService")
local TweenService = game:GetService("TweenService")
local player = Players.LocalPlayer
local camera = workspace.CurrentCamera

-- Create Sprint Button
local screenGui = Instance.new("ScreenGui", player:WaitForChild("PlayerGui"))
local btn = Instance.new("TextButton", screenGui)
btn.Size = UDim2.new(0, 80, 0, 80)
btn.Position = UDim2.new(0.8, 0, 0.7, 0)
btn.BackgroundColor3 = Color3.fromRGB(0, 120, 255)
btn.Text = "RUN"
btn.TextColor3 = Color3.new(1,1,1)
btn.Font = Enum.Font.FredokaOne
btn.TextSize = 25
Instance.new("UICorner", btn).CornerRadius = UDim.new(1, 0)

local function initSonic(char)
    task.wait(0.5) 
    local hum = char:WaitForChild("Humanoid")
    local root = char:WaitForChild("HumanoidRootPart")
    
    -- Sprint Logic (Speed 67 + FOV 100)
    btn.MouseButton1Down:Connect(function()
        hum.WalkSpeed = 67
        TweenService:Create(camera, TweenInfo.new(0.3), {FieldOfView = 100}):Play()
    end)
    btn.MouseButton1Up:Connect(function()
        hum.WalkSpeed = 16
        TweenService:Create(camera, TweenInfo.new(0.3), {FieldOfView = 70}):Play()
    end)

    if root:FindFirstChild("SonicRoot") then root.SonicRoot:Destroy() end

    local sprites = {
        idle = "rbxassetid://98630909487817",
        walk = {"rbxassetid://100186283005430", "rbxassetid://74520657580881", "rbxassetid://121565656917719"},
        run = {"rbxassetid://132396712896037", "rbxassetid://139692518360487", "rbxassetid://93868266127173", "rbxassetid://117677156233751"},
        jump = {"rbxassetid://118861123713099", "rbxassetid://76937403052942", "rbxassetid://130530288388496"}
    }

    local function hide()
        for _, v in pairs(char:GetDescendants()) do
            if (v:IsA("BasePart") and v.Name ~= "HumanoidRootPart") or v:IsA("Decal") then
                v.Transparency = 1
            end
        end
    end
    hide()

    local main = Instance.new("BillboardGui", root)
    main.Name = "SonicRoot"
    main.Size = UDim2.new(5, 0, 5, 0)
    main.AlwaysOnTop = false 
    main.ExtentsOffset = Vector3.new(0, 0.8, 0) 
    
    local img = Instance.new("ImageLabel", main)
    img.AnchorPoint = Vector2.new(0.5, 0.5) -- CRITICAL: Stops the jumping/glitching
    img.Position = UDim2.new(0.5, 0, 0.5, 0)
    img.Size = UDim2.new(1, 0, 1, 0)
    img.BackgroundTransparency = 1
    img.ResampleMode = Enum.ResamplerMode.Pixelated
    img.ScaleType = Enum.ScaleType.Fit 

    local frame, timer, fps = 1, 0, 12

    RunService.Heartbeat:Connect(function(dt)
        if not char.Parent then return end
        
        timer = timer + dt
        if timer >= (1/fps) then
            timer = 0
            frame = frame + 1
        end

        local vel = root.AssemblyLinearVelocity * Vector3.new(1, 0, 1)
        local speed = vel.Magnitude
        local state = hum:GetState()

        -- Animation Picker
        if state == Enum.HumanoidStateType.Jumping or state == Enum.HumanoidStateType.Freefall or state == Enum.HumanoidStateType.FallingDown then
            fps = 16
            if frame > #sprites.jump then frame = 1 end
            img.Image = sprites.jump[frame]
        elseif speed > 20 then
            fps = 20
            if frame > #sprites.run then frame = 1 end
            img.Image = sprites.run[frame]
        elseif speed > 1 then
            fps = 10
            if frame > #sprites.walk then frame = 1 end
            img.Image = sprites.walk[frame]
        else
            img.Image = sprites.idle
            frame = 1
        end

        -- Smooth Facing Logic (Fixes the flicker)
        local move = hum.MoveDirection
        if move.Magnitude > 0.1 then
            local localMove = camera.CFrame:VectorToObjectSpace(move)
            if localMove.X > 0.2 then
                img.Size = UDim2.new(-1, 0, 1, 0)
            elseif localMove.X < -0.2 then
                img.Size = UDim2.new(1, 0, 1, 0)
            end
        end
    end)
end

if player.Character then task.spawn(initSonic, player.Character) end
player.CharacterAdded:Connect(initSonic)