local Players = game:GetService("Players")
local RunService = game:GetService("RunService")

local LocalPlayer = Players.LocalPlayer
local Camera = workspace.CurrentCamera

local radarSize = 100
local maxRange = 100

local gui, radar
local blips = {}
local lastPos = {}

-- 🔥 HARD RESET (thay nước sạch)
local function hardReset()
    if gui then
        gui:Destroy()
    end

    gui = nil
    radar = nil
    blips = {}
    lastPos = {}

    task.wait(0.1)

    gui = Instance.new("ScreenGui")
    gui.Name = "RadarGUI"
    gui.Parent = LocalPlayer:WaitForChild("PlayerGui")

    radar = Instance.new("Frame")
    radar.Size = UDim2.new(0, radarSize, 0, radarSize)
    radar.Position = UDim2.new(0.9, 0, 0.1, 0)
    radar.AnchorPoint = Vector2.new(0.5,0.5)
    radar.BackgroundColor3 = Color3.new(0,0,0)
    radar.BackgroundTransparency = 0.5
    radar.BorderSizePixel = 0
    radar.ClipsDescendants = true
    radar.Parent = gui

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

    -- self
    local selfBlip = Instance.new("Frame")
    selfBlip.Size = UDim2.new(0,8,0,8)
    selfBlip.AnchorPoint = Vector2.new(0.5,0.5)
    selfBlip.Position = UDim2.new(0.5,0,0.5,0)
    selfBlip.BackgroundColor3 = Color3.fromRGB(0,255,0)
    selfBlip.BorderSizePixel = 0
    selfBlip.ZIndex = 5
    selfBlip.Parent = radar
    Instance.new("UICorner", selfBlip).CornerRadius = UDim.new(1,0)
end

-- 🔥 CREATE BLIP
local function createBlip()
    local b = Instance.new("Frame")
    b.Size = UDim2.new(0,6,0,6)
    b.AnchorPoint = Vector2.new(0.5,0.5)
    b.BorderSizePixel = 0
    b.ZIndex = 3
    b.Parent = radar
    Instance.new("UICorner", b).CornerRadius = UDim.new(1,0)
    return b
end

-- 🔥 WATCHDOG (anti mất radar)
task.spawn(function()
    while true do
        task.wait(1)

        local broken = false

        if not gui or not gui.Parent then
            broken = true
        end

        if not radar or not radar.Parent then
            broken = true
        end

        if gui and gui.Parent ~= LocalPlayer:FindFirstChild("PlayerGui") then
            broken = true
        end

        if broken then
            hardReset()
        end
    end
end)

-- 🔥 RESET khi respawn / round
LocalPlayer.CharacterAdded:Connect(function()
    hardReset()
end)

-- 🔥 FIX PLAYER LEAVE (quan trọng)
Players.PlayerRemoving:Connect(function(player)
    if blips[player] then
        blips[player]:Destroy()
        blips[player] = nil
    end
    lastPos[player] = nil
end)

-- 🔥 MAIN LOOP
RunService.RenderStepped:Connect(function()

    if not radar or not radar.Parent then return end

    local char = LocalPlayer.Character
    local root = char and char:FindFirstChild("HumanoidRootPart")
    if not root then return end

    local cam = Camera.CFrame
    local angle = math.atan2(-cam.LookVector.X, -cam.LookVector.Z)

    for _,p in ipairs(Players:GetPlayers()) do
        if p ~= LocalPlayer then

            if not blips[p] then
                blips[p] = createBlip()
            end

            local r = p.Character and p.Character:FindFirstChild("HumanoidRootPart")
            if r then
                lastPos[p] = r.Position
            end

            local target = lastPos[p] or root.Position
            local rel = target - root.Position

            -- rotate theo camera
            local c,s = math.cos(angle), math.sin(angle)
            local x = rel.X * c - rel.Z * s
            local z = rel.X * s + rel.Z * c

            local dist = Vector2.new(x,z).Magnitude
            local scale = (radarSize/2)/maxRange

            local px,pz
            if dist > maxRange then
                local dir = Vector2.new(x,z).Unit
                local edge = radarSize/2 - 5
                px = dir.X * edge
                pz = dir.Y * edge
            else
                px = x * scale
                pz = z * scale
            end

            -- 🎯 màu theo TeamColor
            local color = p.TeamColor and p.TeamColor.Color or Color3.new(1,1,1)

            blips[p].BackgroundColor3 = color
            blips[p].Position = UDim2.new(0.5, px, 0.5, pz)
        end
    end
end)