local Players = game:GetService("Players")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local CoreGui = game:GetService("CoreGui")
local RunService = game:GetService("RunService")
local Camera = workspace.CurrentCamera
local LocalPlayer = Players.LocalPlayer


local FOV_RADIUS = 200 
local SHOW_FOV = true
local NO_SPREAD_ENABLED = true

if CoreGui:FindFirstChild("Bymax_FOV_Base") then
    CoreGui.Bymax_FOV_Base:Destroy()
end

local ScreenGui = Instance.new("ScreenGui", CoreGui)
ScreenGui.Name = "Bymax_FOV_Base"
ScreenGui.IgnoreGuiInset = true

local FOVFrame = Instance.new("Frame", ScreenGui)
FOVFrame.Name = "FOV_Circle"
FOVFrame.BackgroundTransparency = 1
FOVFrame.BorderSizePixel = 0
FOVFrame.Visible = SHOW_FOV

local UICorner = Instance.new("UICorner", FOVFrame)
UICorner.CornerRadius = UDim.new(1, 0)

local UIStroke = Instance.new("UIStroke", FOVFrame)
UIStroke.Color = Color3.fromRGB(255, 255, 255)
UIStroke.Thickness = 1
UIStroke.Transparency = 0.5


local function getTarget()
    local target, closestDist = nil, FOV_RADIUS
    for _, plr in pairs(Players:GetPlayers()) do
        if plr ~= LocalPlayer and plr.Character then
            local head = plr.Character:FindFirstChild("Head")
            local hum = plr.Character:FindFirstChildOfClass("Humanoid")
            if head and hum and hum.Health > 0 then
                local pos, onScreen = Camera:WorldToViewportPoint(head.Position)
                if onScreen then
                    local screenCenter = Vector2.new(Camera.ViewportSize.X / 2, Camera.ViewportSize.Y / 2)
                    local dist = (Vector2.new(pos.X, pos.Y) - screenCenter).Magnitude
                    if dist < closestDist then
                        closestDist = dist
                        target = {head, hum}
                    end
                end
            end
        end
    end
    return target
end


RunService.RenderStepped:Connect(function()
    local center = Vector2.new(Camera.ViewportSize.X / 2, Camera.ViewportSize.Y / 2)
    FOVFrame.Position = UDim2.new(0, center.X - FOV_RADIUS, 0, center.Y - FOV_RADIUS)
    FOVFrame.Size = UDim2.new(0, FOV_RADIUS * 2, 0, FOV_RADIUS * 2)
end)


local castRays = require(ReplicatedStorage.Blaster.Utility.castRays)

local old
old = hookfunction(castRays, function(player, origin, directions, radius)

    if player == LocalPlayer and NO_SPREAD_ENABLED and type(directions) == "table" then
        for i, _ in pairs(directions) do

            directions[i] = Vector3.new(0, 0, -1)
        end
    end

    local result = old(player, origin, directions, radius)
    if type(result) ~= "table" then return result end

    local data = getTarget()
    if player == LocalPlayer and data and result[1] then
        local head = data[1]
        local humanoid = data[2]
        
        result[1].position = head.Position
        result[1].instance = head
        result[1].taggedHumanoid = humanoid
    end

    return result
end)