Universal Silent Aim Script [ROBLOX]

-- init
if not game:IsLoaded() then
    game.Loaded:Wait()
end

if not syn or not protectgui then
    getgenv().protectgui = function() end
end

local SilentAimSettings = {
    Enabled = false,

    ClassName = "Universal Silent Aim - Aethiel",
    ToggleKey = "RightAlt",

    TeamCheck = false,
    VisibleCheck = false,
    TargetPart = "HumanoidRootPart",
    SilentAimMethod = "Raycast",

    FOVRadius = 130,
    FOVVisible = false,
    ShowSilentAimTarget = false,

    MouseHitPrediction = false,
    MouseHitPredictionAmount = 0.165,
    HitChance = 100
}

-- variables
getgenv().SilentAimSettings = Settings
local MainFileName = "UniversalSilentAim"
local SelectedFile, FileToSave = "", ""

local Camera = workspace.CurrentCamera
local Players = game:GetService("Players")
local RunService = game:GetService("RunService")
local GuiService = game:GetService("GuiService")
local UserInputService = game:GetService("UserInputService")
local HttpService = game:GetService("HttpService")

local LocalPlayer = Players.LocalPlayer
local Mouse = LocalPlayer:GetMouse()

local GetChildren = game.GetChildren
local GetPlayers = Players.GetPlayers
local WorldToScreen = Camera.WorldToScreenPoint
local WorldToViewportPoint = Camera.WorldToViewportPoint
local GetPartsObscuringTarget = Camera.GetPartsObscuringTarget
local FindFirstChild = game.FindFirstChild
local RenderStepped = RunService.RenderStepped
local GuiInset = GuiService.GetGuiInset
local GetMouseLocation = UserInputService.GetMouseLocation

local resume = coroutine.resume
local create = coroutine.create

local ValidTargetParts = {"Head", "HumanoidRootPart"}
local PredictionAmount = 0.165

local mouse_box = Drawing.new("Square")
mouse_box.Visible = true
mouse_box.ZIndex = 999
mouse_box.Color = Color3.fromRGB(54, 57, 241)
mouse_box.Thickness = 20
mouse_box.Size = Vector2.new(20, 20)
mouse_box.Filled = true

local fov_circle = Drawing.new("Circle")
fov_circle.Thickness = 1
fov_circle.NumSides = 100
fov_circle.Radius = 180
fov_circle.Filled = false
fov_circle.Visible = false
fov_circle.ZIndex = 999
fov_circle.Transparency = 1
fov_circle.Color = Color3.fromRGB(54, 57, 241)

local ExpectedArguments = {
    FindPartOnRayWithIgnoreList = {
        ArgCountRequired = 3,
        Args = {
            "Instance", "Ray", "table", "boolean", "boolean"
        }
    },
    FindPartOnRayWithWhitelist = {
        ArgCountRequired = 3,
        Args = {
            "Instance", "Ray", "table", "boolean"
        }
    },
    FindPartOnRay = {
        ArgCountRequired = 2,
        Args = {
            "Instance", "Ray", "Instance", "boolean", "boolean"
        }
    },
    Raycast = {
        ArgCountRequired = 3,
        Args = {
            "Instance", "Vector3", "Vector3", "RaycastParams"
        }
    }
}

function CalculateChance(Percentage)
    -- // Floor the percentage
    Percentage = math.floor(Percentage)

    -- // Get the chance
    local chance = math.floor(Random.new().NextNumber(Random.new(), 0, 1) * 100) / 100

    -- // Return
    return chance <= Percentage / 100
end


--[[file handling]] do
    if not isfolder(MainFileName) then
        makefolder(MainFileName);
    end

    if not isfolder(string.format("%s/%s", MainFileName, tostring(game.PlaceId))) then
        makefolder(string.format("%s/%s", MainFileName, tostring(game.PlaceId)))
    end
end

local Files = listfiles(string.format("%s/%s", "UniversalSilentAim", tostring(game.PlaceId)))

-- functions
local function GetFiles() -- credits to the linoria lib for this function, listfiles returns the files full path and its annoying
	local out = {}
	for i = 1, #Files do
		local file = Files[i]
		if file:sub(-4) == '.lua' then
			-- i hate this but it has to be done ...

			local pos = file:find('.lua', 1, true)
			local start = pos

			local char = file:sub(pos, pos)
			while char ~= '/' and char ~= '\\' and char ~= '' do
				pos = pos - 1
				char = file:sub(pos, pos)
			end

			if char == '/' or char == '\\' then
				table.insert(out, file:sub(pos + 1, start - 1))
			end
		end
	end

	return out
end

local function UpdateFile(FileName)
    assert(FileName or FileName == "string", "oopsies");
    writefile(string.format("%s/%s/%s.lua", MainFileName, tostring(game.PlaceId), FileName), HttpService:JSONEncode(SilentAimSettings))
end

local function LoadFile(FileName)
    assert(FileName or FileName == "string", "oopsies");

    local File = string.format("%s/%s/%s.lua", MainFileName, tostring(game.PlaceId), FileName)
    local ConfigData = HttpService:JSONDecode(readfile(File))
    for Index, Value in next, ConfigData do
        SilentAimSettings[Index] = Value
    end
end

local function getPositionOnScreen(Vector)
    local Vec3, OnScreen = WorldToScreen(Camera, Vector)
    return Vector2.new(Vec3.X, Vec3.Y), OnScreen
end

local function ValidateArguments(Args, RayMethod)
    local Matches = 0
    if #Args < RayMethod.ArgCountRequired then
        return false
    end
    for Pos, Argument in next, Args do
        if typeof(Argument) == RayMethod.Args[Pos] then
            Matches = Matches + 1
        end
    end
    return Matches >= RayMethod.ArgCountRequired
end

local function getDirection(Origin, Position)
    return (Position - Origin).Unit * 1000
end

local function getMousePosition()
    return GetMouseLocation(UserInputService)
end

local function IsPlayerVisible(Player)
    local PlayerCharacter = Player.Character
    local LocalPlayerCharacter = LocalPlayer.Character

    if not (PlayerCharacter or LocalPlayerCharacter) then return end

    local PlayerRoot = FindFirstChild(PlayerCharacter, Options.TargetPart.Value) or FindFirstChild(PlayerCharacter, "HumanoidRootPart")

    if not PlayerRoot then return end

    local CastPoints, IgnoreList = {PlayerRoot.Position, LocalPlayerCharacter, PlayerCharacter}, {LocalPlayerCharacter, PlayerCharacter}
    local ObscuringObjects = #GetPartsObscuringTarget(Camera, CastPoints, IgnoreList)

    return ((ObscuringObjects == 0 and true) or (ObscuringObjects > 0 and false))
end

local function getClosestPlayer()
    if not Options.TargetPart.Value then return end
    local Closest
    local DistanceToMouse
    for _, Player in next, GetPlayers(Players) do
        if Player == LocalPlayer then continue end
        if Toggles.TeamCheck.Value and Player.Team == LocalPlayer.Team then continue end

        local Character = Player.Character
        if not Character then continue end

        if Toggles.VisibleCheck.Value and not IsPlayerVisible(Player) then continue end

        local HumanoidRootPart = FindFirstChild(Character, "HumanoidRootPart")
        local Humanoid = FindFirstChild(Character, "Humanoid")
        if not HumanoidRootPart or not Humanoid or Humanoid and Humanoid.Health <= 0 then continue end

        local ScreenPosition, OnScreen = getPositionOnScreen(HumanoidRootPart.Position)
        if not OnScreen then continue end

        local Distance = (getMousePosition() - ScreenPosition).Magnitude
        if Distance <= (DistanceToMouse or Options.Radius.Value or 2000) then
            Closest = ((Options.TargetPart.Value == "Random" and Character[ValidTargetParts[math.random(1, #ValidTargetParts)]]) or Character[Options.TargetPart.Value])
            DistanceToMouse = Distance
        end
    end
    return Closest
end

-- ui creating & handling
local Library = loadstring(game:HttpGet("https://raw.githubusercontent.com/violin-suzutsuki/LinoriaLib/main/Library.lua"))()

local Window = Library:CreateWindow("Universal Silent Aim, by Averiias, xaxa, and Stefanuk12")
local GeneralTab = Window:AddTab("General")
local MainBOX = GeneralTab:AddLeftTabbox("Main") do
    local Main = MainBOX:AddTab("Main")

    Main:AddToggle("aim_Enabled", {Text = "Enabled"}):AddKeyPicker("aim_Enabled_KeyPicker", {Default = "RightAlt", SyncToggleState = true, Mode = "Toggle", Text = "Enabled", NoUI = false});
    Options.aim_Enabled_KeyPicker:OnClick(function()
        SilentAimSettings.Enabled = not SilentAimSettings.Enabled

        Toggles.aim_Enabled.Value = SilentAimSettings.Enabled
        Toggles.aim_Enabled:SetValue(SilentAimSettings.Enabled)

        mouse_box.Visible = SilentAimSettings.Enabled
    end)

    Main:AddToggle("TeamCheck", {Text = "Team Check", Default = SilentAimSettings.TeamCheck}):OnChanged(function()
        SilentAimSettings.TeamCheck = Toggles.TeamCheck.Value
    end)
    Main:AddToggle("VisibleCheck", {Text = "Visible Check", Default = SilentAimSettings.VisibleCheck}):OnChanged(function()
        SilentAimSettings.VisibleCheck = Toggles.VisibleCheck.Value
    end)
    Main:AddDropdown("TargetPart", {AllowNull = true, Text = "Target Part", Default = SilentAimSettings.TargetPart, Values = {"Head", "HumanoidRootPart", "Random"}}):OnChanged(function()
        SilentAimSettings.TargetPart = Options.TargetPart.Value
    end)
    Main:AddDropdown("Method", {AllowNull = true, Text = "Silent Aim Method", Default = SilentAimSettings.SilentAimMethod, Values = {
        "Raycast","FindPartOnRay",
        "FindPartOnRayWithWhitelist",
        "FindPartOnRayWithIgnoreList",
        "Mouse.Hit/Target"
    }}):OnChanged(function()
        SilentAimSettings.SilentAimMethod = Options.Method.Value
    end)
    Main:AddSlider('HitChance', {
        Text = 'Hit chance',
        Default = 100,
        Min = 0,
        Max = 100,
        Rounding = 1,

        Compact = false,
    })
    Options.HitChance:OnChanged(function()
        SilentAimSettings.HitChance = Options.HitChance.Value
    end)
end

local MiscellaneousBOX = GeneralTab:AddLeftTabbox("Miscellaneous")
local FieldOfViewBOX = GeneralTab:AddLeftTabbox("Field Of View") do
    local Main = FieldOfViewBOX:AddTab("Visuals")

    Main:AddToggle("Visible", {Text = "Show FOV Circle"}):AddColorPicker("Color", {Default = Color3.fromRGB(54, 57, 241)}):OnChanged(function()
        fov_circle.Visible = Toggles.Visible.Value
        SilentAimSettings.FOVVisible = Toggles.Visible.Value
    end)
    Main:AddSlider("Radius", {Text = "FOV Circle Radius", Min = 0, Max = 360, Default = 130, Rounding = 0}):OnChanged(function()
        fov_circle.Radius = Options.Radius.Value
        SilentAimSettings.FOVRadius = Options.Radius.Value
    end)
    Main:AddToggle("MousePosition", {Text = "Show Silent Aim Target"}):AddColorPicker("MouseVisualizeColor", {Default = Color3.fromRGB(54, 57, 241)}):OnChanged(function()
        mouse_box.Visible = Toggles.MousePosition.Value
        SilentAimSettings.ShowSilentAimTarget = Toggles.MousePosition.Value
    end)
    local PredictionTab = MiscellaneousBOX:AddTab("Prediction")
    PredictionTab:AddToggle("Prediction", {Text = "Mouse.Hit/Target Prediction"}):OnChanged(function()
        SilentAimSettings.MouseHitPrediction = Toggles.Prediction.Value
    end)
    PredictionTab:AddSlider("Amount", {Text = "Prediction Amount", Min = 0.165, Max = 1, Default = 0.165, Rounding = 3}):OnChanged(function()
        PredictionAmount = Options.Amount.Value
        SilentAimSettings.MouseHitPredictionAmount = Options.Amount.Value
    end)
end

local CreateConfigurationBOX = GeneralTab:AddRightTabbox("Create Configuration") do
    local Main = CreateConfigurationBOX:AddTab("Create Configuration")

    Main:AddInput("CreateConfigTextBox", {Default = "", Numeric = false, Finished = false, Text = "Create Configuration to Create", Tooltip = "Creates a configuration file containing settings you can save and load", Placeholder = "File Name here"}):OnChanged(function()
        if Options.CreateConfigTextBox.Value and string.len(Options.CreateConfigTextBox.Value) ~= "" then
            FileToSave = Options.CreateConfigTextBox.Value
        end
    end)

    Main:AddButton("Create Configuration File", function()
        if FileToSave ~= "" or FileToSave ~= nil then
            UpdateFile(FileToSave)
        end
    end)
end

local SaveConfigurationBOX = GeneralTab:AddRightTabbox("Save Configuration") do
    local Main = SaveConfigurationBOX:AddTab("Save Configuration")
    Main:AddDropdown("SaveConfigurationDropdown", {AllowNull = true, Values = GetFiles(), Text = "Choose Configuration to Save"})
    Main:AddButton("Save Configuration", function()
        if Options.SaveConfigurationDropdown.Value then
            UpdateFile(Options.SaveConfigurationDropdown.Value)
        end
    end)
end

local LoadConfigurationBOX = GeneralTab:AddRightTabbox("Load Configuration") do
    local Main = LoadConfigurationBOX:AddTab("Load Configuration")

    Main:AddDropdown("LoadConfigurationDropdown", {AllowNull = true, Values = GetFiles(), Text = "Choose Configuration to Load"})
    Main:AddButton("Load Configuration", function()
        if table.find(GetFiles(), Options.LoadConfigurationDropdown.Value) then
            LoadFile(Options.LoadConfigurationDropdown.Value)

            Toggles.TeamCheck:SetValue(SilentAimSettings.TeamCheck)
            Toggles.VisibleCheck:SetValue(SilentAimSettings.VisibleCheck)
            Options.TargetPart:SetValue(SilentAimSettings.TargetPart)
            Options.Method:SetValue(SilentAimSettings.SilentAimMethod)
            Toggles.Visible:SetValue(SilentAimSettings.FOVVisible)
            Options.Radius:SetValue(SilentAimSettings.FOVRadius)
            Toggles.MousePosition:SetValue(SilentAimSettings.ShowSilentAimTarget)
            Toggles.Prediction:SetValue(SilentAimSettings.MouseHitPrediction)
            Options.Amount:SetValue(SilentAimSettings.MouseHitPredictionAmount)
            Options.HitChance:SetValue(SilentAimSettings.HitChance)
        end
    end)
end

resume(create(function()
    RenderStepped:Connect(function()
        if Toggles.MousePosition.Value and Toggles.aim_Enabled.Value then
            if getClosestPlayer() then
                local Root = getClosestPlayer().Parent.PrimaryPart or getClosestPlayer()
                local RootToViewportPoint, IsOnScreen = WorldToViewportPoint(Camera, Root.Position);
                -- using PrimaryPart instead because if your Target Part is "Random" it will flicker the square between the Target's Head and HumanoidRootPart (its annoying)

                mouse_box.Visible = IsOnScreen
                mouse_box.Position = Vector2.new(RootToViewportPoint.X, RootToViewportPoint.Y)
            else
                mouse_box.Visible = false
                mouse_box.Position = Vector2.new()
            end
        end

        if Toggles.Visible.Value then
            fov_circle.Visible = Toggles.Visible.Value
            fov_circle.Color = Options.Color.Value
            fov_circle.Position = getMousePosition()
        end
    end)
end))

-- hooks
local oldNamecall
oldNamecall = hookmetamethod(game, "__namecall", newcclosure(function(...)
    local Method = getnamecallmethod()
    local Arguments = {...}
    local self = Arguments[1]
    local chance = CalculateChance(SilentAimSettings.HitChance)
    if Toggles.aim_Enabled.Value and self == workspace and not checkcaller() and chance == true then
        if Method == "FindPartOnRayWithIgnoreList" and Options.Method.Value == Method then
            if ValidateArguments(Arguments, ExpectedArguments.FindPartOnRayWithIgnoreList) then
                local A_Ray = Arguments[2]

                local HitPart = getClosestPlayer()
                if HitPart then
                    local Origin = A_Ray.Origin
                    local Direction = getDirection(Origin, HitPart.Position)
                    Arguments[2] = Ray.new(Origin, Direction)

                    return oldNamecall(unpack(Arguments))
                end
            end
        elseif Method == "FindPartOnRayWithWhitelist" and Options.Method.Value == Method then
            if ValidateArguments(Arguments, ExpectedArguments.FindPartOnRayWithWhitelist) then
                local A_Ray = Arguments[2]

                local HitPart = getClosestPlayer()
                if HitPart then
                    local Origin = A_Ray.Origin
                    local Direction = getDirection(Origin, HitPart.Position)
                    Arguments[2] = Ray.new(Origin, Direction)

                    return oldNamecall(unpack(Arguments))
                end
            end
        elseif (Method == "FindPartOnRay" or Method == "findPartOnRay") and Options.Method.Value:lower() == Method:lower() then
            if ValidateArguments(Arguments, ExpectedArguments.FindPartOnRay) then
                local A_Ray = Arguments[2]

                local HitPart = getClosestPlayer()
                if HitPart then
                    local Origin = A_Ray.Origin
                    local Direction = getDirection(Origin, HitPart.Position)
                    Arguments[2] = Ray.new(Origin, Direction)

                    return oldNamecall(unpack(Arguments))
                end
            end
        elseif Method == "Raycast" and Options.Method.Value == Method then
            if ValidateArguments(Arguments, ExpectedArguments.Raycast) then
                local A_Origin = Arguments[2]

                local HitPart = getClosestPlayer()
                if HitPart then
                    Arguments[3] = getDirection(A_Origin, HitPart.Position)

                    return oldNamecall(unpack(Arguments))
                end
            end
        end
    end
    return oldNamecall(...)
end))

local oldIndex = nil
oldIndex = hookmetamethod(game, "__index", newcclosure(function(self, Index)
    if self == Mouse and not checkcaller() and Toggles.aim_Enabled.Value and Options.Method.Value == "Mouse.Hit/Target" and getClosestPlayer() then
        local HitPart = getClosestPlayer()

        if Index == "Target" or Index == "target" then
            return HitPart
        elseif Index == "Hit" or Index == "hit" then
            return ((Toggles.Prediction.Value and (HitPart.CFrame + (HitPart.Velocity * PredictionAmount))) or (not Toggles.Prediction.Value and HitPart.CFrame))
        elseif Index == "X" or Index == "x" then
            return self.X
        elseif Index == "Y" or Index == "y" then
            return self.Y
        elseif Index == "UnitRay" then
            return Ray.new(self.Origin, (self.Hit - self.Origin).Unit)
        end
    end

    return oldIndex(self, Index)
end))