local Players = game:GetService("Players")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Workspace = game:GetService("Workspace")
local RunService = game:GetService("RunService")
local UserInputService = game:GetService("UserInputService")

local plr = Players.LocalPlayer
local cam = Workspace.CurrentCamera

local settings = {
    fovEnabled = true,
    fovColor = Color3.fromRGB(255, 255, 255),
    fovRadius = 300,
    fovTransparency = 0.5,
    hitpart = "HumanoidRootPart",
    enabled = true,
    hitchance = 100,
}

local fov = nil

local function refreshFOV()
    if fov then
        fov.Visible = false
        fov:Remove()
        fov = nil
    end

    if not settings.fovEnabled then return end

    fov = Drawing.new("Circle")
    fov.Thickness = 1
    fov.Color = settings.fovColor
    fov.Transparency = settings.fovTransparency
    fov.Filled = false
    fov.Visible = true
    fov.Radius = settings.fovRadius
    fov.NumSides = 200
    fov.Position = UserInputService:GetMouseLocation()
end

local function getTarget()
    local found = nil
    local closest = settings.fovRadius
    local mouse = UserInputService:GetMouseLocation()

    for _, p in ipairs(Players:GetPlayers()) do
        if p == plr or not p.Character then continue end

        local part = p.Character:FindFirstChild(settings.hitpart)
        local hum = p.Character:FindFirstChildOfClass("Humanoid")

        if not part or not hum or hum.Health <= 0 then continue end

        local pos, onscreen = cam:WorldToViewportPoint(part.Position)
        if not onscreen then continue end

        local dist = (Vector2.new(pos.X, pos.Y) - mouse).Magnitude
        if dist < closest then
            closest = dist
            found = p.Character
        end
    end

    return found
end

local function init()
    local ok, err = pcall(function()
        local wm = require(ReplicatedStorage.Common.Managers.WeaponManager)
        local real = wm.cast

        wm.cast = newcclosure(function(...)
            local args = {...}

            if settings.enabled and math.random(100) <= settings.hitchance then
                local target = getTarget()
                if target then
                    local part = target:FindFirstChild(settings.hitpart) or target:FindFirstChild("Head")
                    if part then
                        args[2] = (part.Position - args[1]).Unit
                    end
                end
            end

            return real(table.unpack(args))
        end)
    end)

    if not ok then
        warn(err)
    end
end

RunService.RenderStepped:Connect(refreshFOV)

init()