-- AK.GUI - 迷路バックルームズ専用機能 (7300スタッド版 + 完全生成 + エンティティ)
local Players = game:GetService("Players")
local UserInputService = game:GetService("UserInputService")
local SoundService = game:GetService("SoundService")
local Workspace = game:GetService("Workspace")
local Lighting = game:GetService("Lighting")
local RunService = game:GetService("RunService")
local CollectionService = game:GetService("CollectionService")

local player = Players.LocalPlayer
local playerGui = player:WaitForChild("PlayerGui")

-- 音声アセットID
local START_SOUND_ID = "1837769261"
local BUTTON_SOUND_ID = "115916891254154"
local BACKROOMS_SOUND_ID = "131147973"
local ENTITY_SOUND_ID = "138013032"
local ATTACK_SOUND_ID = "159698324"

-- 音声再生関数
local function playSound(soundId, volume)
    volume = volume or 0.5
    local sound = Instance.new("Sound")
    sound.SoundId = "rbxassetid://" .. soundId
    sound.Volume = volume
    sound.Parent = SoundService
    sound:Play()
    
    sound.Ended:Connect(function()
        sound:Destroy()
    end)
end

-- スクリプト読み込み時の音声再生
playSound(START_SOUND_ID)

-- GUI作成
local screenGui = Instance.new("ScreenGui")
screenGui.Name = "AK_GUI"
screenGui.ResetOnSpawn = false
screenGui.ZIndexBehavior = Enum.ZIndexBehavior.Sibling
screenGui.Parent = playerGui

-- メインフレーム
local mainFrame = Instance.new("Frame")
mainFrame.Name = "MainFrame"
mainFrame.Size = UDim2.new(0, 200, 0, 180)
mainFrame.Position = UDim2.new(0, 10, 0, 10)
mainFrame.BackgroundColor3 = Color3.fromRGB(30, 30, 40)
mainFrame.BorderSizePixel = 0
mainFrame.BackgroundTransparency = 0.05
mainFrame.Parent = screenGui

-- 角丸
local corner = Instance.new("UICorner")
corner.CornerRadius = UDim.new(0, 12)
corner.Parent = mainFrame

-- ボーダー
local border = Instance.new("UIStroke")
border.Color = Color3.fromRGB(100, 100, 150)
border.Thickness = 2
border.Parent = mainFrame

-- タイトル
local title = Instance.new("TextLabel")
title.Name = "Title"
title.Size = UDim2.new(1, 0, 0, 25)
title.Position = UDim2.new(0, 0, 0, 0)
title.BackgroundColor3 = Color3.fromRGB(40, 40, 60)
title.TextColor3 = Color3.fromRGB(220, 220, 255)
title.Text = "👹 BACKROOMS 7300 FIXED 👹"
title.Font = Enum.Font.GothamBold
title.TextSize = 12
title.Parent = mainFrame

local titleCorner = Instance.new("UICorner")
titleCorner.CornerRadius = UDim.new(0, 12)
titleCorner.Parent = title

-- コントロールボタンコンテナ
local controlContainer = Instance.new("Frame")
controlContainer.Name = "ControlContainer"
controlContainer.Size = UDim2.new(1, -20, 0, 20)
controlContainer.Position = UDim2.new(0, 10, 1, -25)
controlContainer.BackgroundTransparency = 1
controlContainer.Parent = mainFrame

-- コントロールボタンのレイアウト
local controlLayout = Instance.new("UIGridLayout")
controlLayout.CellSize = UDim2.new(0.5, -4, 1, 0)
controlLayout.CellPadding = UDim2.new(0, 8, 0, 0)
controlLayout.HorizontalAlignment = Enum.HorizontalAlignment.Center
controlLayout.Parent = controlContainer

-- Hideボタン
local toggleButton = Instance.new("TextButton")
toggleButton.Name = "ToggleButton"
toggleButton.Size = UDim2.new(1, 0, 1, 0)
toggleButton.BackgroundColor3 = Color3.fromRGB(60, 60, 80)
toggleButton.TextColor3 = Color3.fromRGB(200, 200, 255)
toggleButton.Text = "Hide"
toggleButton.Font = Enum.Font.Gotham
toggleButton.TextSize = 10
toggleButton.Parent = controlContainer

local toggleCorner = Instance.new("UICorner")
toggleCorner.CornerRadius = UDim.new(0, 6)
toggleCorner.Parent = toggleButton

-- Pinボタン
local pinButton = Instance.new("TextButton")
pinButton.Name = "PinButton"
pinButton.Size = UDim2.new(1, 0, 1, 0)
pinButton.BackgroundColor3 = Color3.fromRGB(160, 100, 220)
pinButton.TextColor3 = Color3.fromRGB(255, 255, 255)
pinButton.Text = "Fixed GUI"
pinButton.Font = Enum.Font.Gotham
pinButton.TextSize = 10
pinButton.Parent = controlContainer

local pinCorner = Instance.new("UICorner")
pinCorner.CornerRadius = UDim.new(0, 6)
pinCorner.Parent = pinButton

-- ボタンコンテナ
local buttonContainer = Instance.new("Frame")
buttonContainer.Name = "ButtonContainer"
buttonContainer.Size = UDim2.new(1, -20, 1, -70)
buttonContainer.Position = UDim2.new(0, 10, 0, 30)
buttonContainer.BackgroundTransparency = 1
buttonContainer.Visible = true
buttonContainer.Parent = mainFrame

-- ボタンレイアウト
local layout = Instance.new("UIListLayout")
layout.Padding = UDim.new(0, 6)
layout.HorizontalAlignment = Enum.HorizontalAlignment.Center
layout.VerticalAlignment = Enum.VerticalAlignment.Top
layout.Parent = buttonContainer

-- ボタン作成関数
function createButton(text, color, height)
    height = height or 35
    local button = Instance.new("TextButton")
    button.Name = text .. "Button"
    button.Size = UDim2.new(1, 0, 0, height)
    button.BackgroundColor3 = color
    button.TextColor3 = Color3.fromRGB(255, 255, 255)
    button.Text = text
    button.Font = Enum.Font.GothamMedium
    button.TextSize = 12
    button.AutoButtonColor = true
    
    local buttonCorner = Instance.new("UICorner")
    buttonCorner.CornerRadius = UDim.new(0, 8)
    buttonCorner.Parent = button
    
    return button
end

-- 迷路生成関数
local function generateMaze(width, height)
    local maze = {}
    for x = 1, width do
        maze[x] = {}
        for y = 1, height do
            maze[x][y] = 0
        end
    end
    
    local stack = {}
    local startX, startY = 2, 2
    
    maze[startX][startY] = 1
    table.insert(stack, {x = startX, y = startY})
    
    local directions = {
        {dx = 2, dy = 0},
        {dx = -2, dy = 0},
        {dx = 0, dy = 2},
        {dx = 0, dy = -2}
    }
    
    while #stack > 0 do
        local current = stack[#stack]
        local available = {}
        
        for _, dir in ipairs(directions) do
            local nx, ny = current.x + dir.dx, current.y + dir.dy
            if nx >= 1 and nx <= width and ny >= 1 and ny <= height and maze[nx][ny] == 0 then
                local wallX, wallY = current.x + dir.dx/2, current.y + dir.dy/2
                if maze[wallX] and maze[wallX][wallY] == 0 then
                    table.insert(available, {dx = dir.dx, dy = dir.dy})
                end
            end
        end
        
        if #available > 0 then
            local chosen = available[math.random(1, #available)]
            local wallX, wallY = current.x + chosen.dx/2, current.y + chosen.dy/2
            local newX, newY = current.x + chosen.dx, current.y + chosen.dy
            
            maze[wallX][wallY] = 1
            maze[newX][newY] = 1
            
            table.insert(stack, {x = newX, y = newY})
        else
            table.remove(stack)
        end
    end
    
    maze[1][2] = 1
    maze[width][height-1] = 1
    
    return maze
end

-- ★エンティティ管理
local entities = {}
local entityConnections = {}

-- エンティティ作成関数
local function createEntity(position, color, speed, aggression)
    local entityFolder = Workspace:FindFirstChild("Backrooms_Level0")
    if not entityFolder then return nil end
    
    local model = Instance.new("Model")
    model.Name = "BackroomsEntity_" .. #entities + 1
    model.Parent = entityFolder
    
    local mainPart = Instance.new("Part")
    mainPart.Name = "Torso"
    mainPart.Size = Vector3.new(2, 12, 1.5)
    mainPart.Position = position
    mainPart.Anchored = false
    mainPart.CanCollide = true
    mainPart.Material = Enum.Material.SmoothPlastic
    mainPart.Color = color or Color3.fromRGB(20, 20, 20)
    mainPart.BrickColor = BrickColor.new("Really black")
    mainPart.BottomSurface = Enum.SurfaceType.Smooth
    mainPart.TopSurface = Enum.SurfaceType.Smooth
    mainPart.Parent = model
    
    local light = Instance.new("PointLight", mainPart)
    light.Brightness = 2
    light.Range = 15
    light.Color = color or Color3.fromRGB(100, 0, 0)
    light.Shadows = true
    
    local head = Instance.new("Part")
    head.Name = "Head"
    head.Size = Vector3.new(1.8, 1.8, 1.8)
    head.Position = position + Vector3.new(0, 6.5, 0)
    head.Anchored = false
    head.CanCollide = true
    head.Material = Enum.Material.Glass
    head.Color = Color3.fromRGB(30, 30, 30)
    head.Transparency = 0.3
    head.BrickColor = BrickColor.new("Black")
    head.Parent = model
    
    local eye1 = Instance.new("Part")
    eye1.Name = "LeftEye"
    eye1.Size = Vector3.new(0.4, 0.4, 0.2)
    eye1.Position = position + Vector3.new(-0.5, 7, 0.9)
    eye1.Anchored = false
    eye1.CanCollide = false
    eye1.Material = Enum.Material.Neon
    eye1.Color = Color3.fromRGB(255, 0, 0)
    eye1.Parent = model
    
    local eye2 = Instance.new("Part")
    eye2.Name = "RightEye"
    eye2.Size = Vector3.new(0.4, 0.4, 0.2)
    eye2.Position = position + Vector3.new(0.5, 7, 0.9)
    eye2.Anchored = false
    eye2.CanCollide = false
    eye2.Material = Enum.Material.Neon
    eye2.Color = Color3.fromRGB(255, 0, 0)
    eye2.Parent = model
    
    for i = -1, 1, 2 do
        local arm = Instance.new("Part")
        arm.Name = "Arm" .. ((i + 3) / 2)
        arm.Size = Vector3.new(0.8, 8, 0.8)
        arm.Position = position + Vector3.new(i * 1.5, 2, 0)
        arm.Anchored = false
        arm.CanCollide = true
        arm.Material = Enum.Material.SmoothPlastic
        arm.Color = Color3.fromRGB(15, 15, 15)
        arm.Parent = model
    end
    
    local weld1 = Instance.new("Weld")
    weld1.Name = "HeadWeld"
    weld1.Part0 = mainPart
    weld1.Part1 = head
    weld1.C0 = CFrame.new(0, 6.5, 0)
    weld1.Parent = mainPart
    
    local weld2 = Instance.new("Weld")
    weld2.Name = "LeftEyeWeld"
    weld2.Part0 = head
    weld2.Part1 = eye1
    weld2.C0 = CFrame.new(-0.5, 0.5, 0.8)
    weld2.Parent = head
    
    local weld3 = Instance.new("Weld")
    weld3.Name = "RightEyeWeld"
    weld3.Part0 = head
    weld3.Part1 = eye2
    weld3.C0 = CFrame.new(0.5, 0.5, 0.8)
    weld3.Parent = head
    
    local weld4 = Instance.new("Weld")
    weld4.Name = "LeftArmWeld"
    weld4.Part0 = mainPart
    weld4.Part1 = model:FindFirstChild("Arm1")
    weld4.C0 = CFrame.new(-1.5, -1, 0)
    weld4.Parent = mainPart
    
    local weld5 = Instance.new("Weld")
    weld5.Name = "RightArmWeld"
    weld5.Part0 = mainPart
    weld5.Part1 = model:FindFirstChild("Arm2")
    weld5.C0 = CFrame.new(1.5, -1, 0)
    weld5.Parent = mainPart
    
    local sound = Instance.new("Sound")
    sound.Name = "EntitySound"
    sound.SoundId = "rbxassetid://" .. ENTITY_SOUND_ID
    sound.Looped = true
    sound.Volume = 0.3
    sound.Parent = model
    sound:Play()
    
    local entityData = {
        model = model,
        mainPart = mainPart,
        speed = speed or 12,
        aggression = aggression or 1.0,
        state = "idle",
        target = nil,
        lastAttack = 0,
        attackCooldown = 2,
        color = color,
        position = position
    }
    
    table.insert(entities, entityData)
    CollectionService:AddTag(model, "BackroomsEntity")
    
    return entityData
end

-- エンティティAI更新
local function updateEntities(dt)
    local character = player.Character
    if not character then return end
    
    local humanoidRootPart = character:FindFirstChild("HumanoidRootPart")
    if not humanoidRootPart then return end
    
    local playerPos = humanoidRootPart.Position
    
    for i, entity in ipairs(entities) do
        if entity.model and entity.model.Parent then
            local entityPos = entity.mainPart.Position
            local distance = (playerPos - entityPos).Magnitude
            
            if distance < 40 then
                entity.state = "chasing"
                entity.target = playerPos
                
                local direction = (playerPos - entityPos).Unit
                local newPos = entityPos + direction * entity.speed * dt
                
                entity.mainPart.CFrame = CFrame.lookAt(newPos, playerPos) * CFrame.Angles(0, math.pi, 0)
                
                if distance < 5 then
                    local now = tick()
                    if now - entity.lastAttack > entity.attackCooldown then
                        entity.state = "attacking"
                        entity.lastAttack = now
                        
                        playSound(ATTACK_SOUND_ID, 1.0)
                        
                        local flash = Instance.new("Part")
                        flash.Name = "AttackFlash"
                        flash.Size = Vector3.new(10, 10, 10)
                        flash.Position = entityPos
                        flash.Anchored = true
                        flash.CanCollide = false
                        flash.Material = Enum.Material.Neon
                        flash.Color = Color3.fromRGB(255, 0, 0)
                        flash.Transparency = 0.5
                        flash.Parent = Workspace
                        
                        game:GetService("TweenService"):Create(flash, TweenInfo.new(0.3), {Transparency = 1}):Play()
                        task.wait(0.3)
                        flash:Destroy()
                        
                        if character and character:FindFirstChild("Humanoid") then
                            character.Humanoid.Health = 0
                        end
                        
                        entity.state = "chasing"
                    end
                end
                
                if entity.state == "chasing" then
                    local t = math.sin(tick() * 10) * 0.5 + 0.5
                    entity.mainPart.Color = Color3.fromRGB(50 + t * 50, 0, 0)
                end
            else
                entity.state = "idle"
                if math.random() < 0.01 then
                    entity.mainPart.CFrame = entity.mainPart.CFrame * CFrame.Angles(0, math.random() * math.pi * 2, 0)
                end
                entity.mainPart.Color = Color3.fromRGB(20, 20, 20)
            end
        else
            table.remove(entities, i)
        end
    end
end

-- エンティティ全削除
local function clearEntities()
    for i, entity in ipairs(entities) do
        if entity.model and entity.model.Parent then
            entity.model:Destroy()
        end
    end
    entities = {}
end

-- ★メインの生成位置定数
local BASE_POSITION = Vector3.new(0, 100, 0)

-- ★異常エリア生成関数（修正版：端まで完全生成）
local function createAnomalyZones(floorY, roomHeight, backroomsFolder, roomWidth, roomLength)
    local anomalies = {}
    local halfWidth = roomWidth / 2
    local halfLength = roomLength / 2
    
    -- 1. 天井がないエリア (端の方にも配置)
    for i = 1, 12 do
        local angle = math.random() * math.pi * 2
        -- 端まで確実に配置するため範囲を最大に
        local radius = math.random(1000, halfWidth - 200)
        local size = 200 + math.random(100, 300)
        
        local anomalyPos = Vector3.new(
            BASE_POSITION.X + math.cos(angle) * radius,
            floorY,
            BASE_POSITION.Z + math.sin(angle) * radius
        )
        
        -- 範囲内に収める
        anomalyPos = Vector3.new(
            math.clamp(anomalyPos.X, -halfWidth + size/2 + 50, halfWidth - size/2 - 50),
            floorY,
            math.clamp(anomalyPos.Z, -halfLength + size/2 + 50, halfLength - size/2 - 50)
        )
        
        -- 天井を削除（このエリアの天井パーツを作らない）
        local marker = Instance.new("Part")
        marker.Name = "NoCeilingZone_" .. i
        marker.Size = Vector3.new(size, 5, size)
        marker.Position = anomalyPos + Vector3.new(0, roomHeight/2, 0)
        marker.Anchored = true
        marker.CanCollide = false
        marker.Transparency = 0.8
        marker.Material = Enum.Material.Neon
        marker.Color = Color3.fromRGB(255, 255, 255)
        marker.Parent = backroomsFolder
        
        -- 上から光が差すエフェクト
        local beam = Instance.new("Part")
        beam.Name = "LightBeam_" .. i
        beam.Size = Vector3.new(size/2, 100, size/2)
        beam.Position = anomalyPos + Vector3.new(0, roomHeight + 50, 0)
        beam.Anchored = true
        beam.CanCollide = false
        beam.Transparency = 0.7
        beam.Material = Enum.Material.Neon
        beam.Color = Color3.fromRGB(255, 255, 200)
        beam.Parent = backroomsFolder
        
        table.insert(anomalies, {type = "no_ceiling", position = anomalyPos, size = size})
    end
    
    -- 2. 赤いエリア (端にも配置)
    for i = 1, 10 do
        local angle = math.random() * math.pi * 2
        local radius = math.random(1000, halfWidth - 200)
        local size = 250 + math.random(150, 350)
        
        local anomalyPos = Vector3.new(
            BASE_POSITION.X + math.cos(angle) * radius,
            floorY,
            BASE_POSITION.Z + math.sin(angle) * radius
        )
        
        anomalyPos = Vector3.new(
            math.clamp(anomalyPos.X, -halfWidth + size/2 + 50, halfWidth - size/2 - 50),
            floorY,
            math.clamp(anomalyPos.Z, -halfLength + size/2 + 50, halfLength - size/2 - 50)
        )
        
        -- 赤い床
        local redFloor = Instance.new("Part")
        redFloor.Name = "RedZone_Floor_" .. i
        redFloor.Size = Vector3.new(size, 2, size)
        redFloor.Position = anomalyPos
        redFloor.Anchored = true
        redFloor.CanCollide = true
        redFloor.Material = Enum.Material.Neon
        redFloor.Color = Color3.fromRGB(255, 0, 0)
        redFloor.Parent = backroomsFolder
        
        -- 赤い壁（周囲）
        local wallSize = 5
        local wallPositions = {
            Vector3.new(size/2, roomHeight/2, 0),
            Vector3.new(-size/2, roomHeight/2, 0),
            Vector3.new(0, roomHeight/2, size/2),
            Vector3.new(0, roomHeight/2, -size/2)
        }
        
        for _, offset in ipairs(wallPositions) do
            local wall = Instance.new("Part")
            wall.Name = "RedZone_Wall_" .. i
            wall.Size = Vector3.new(size, roomHeight, wallSize)
            wall.Position = anomalyPos + offset
            wall.Anchored = true
            wall.CanCollide = true
            wall.Material = Enum.Material.Neon
            wall.Color = Color3.fromRGB(150, 0, 0)
            wall.Transparency = 0.3
            wall.Parent = backroomsFolder
        end
        
        local redLight = Instance.new("PointLight")
        redLight.Parent = redFloor
        redLight.Brightness = 3
        redLight.Range = size
        redLight.Color = Color3.fromRGB(255, 0, 0)
        
        table.insert(anomalies, {type = "red", position = anomalyPos, size = size})
    end
    
    -- 3. 青いエリア (端にも配置)
    for i = 1, 10 do
        local angle = math.random() * math.pi * 2
        local radius = math.random(1000, halfWidth - 200)
        local size = 200 + math.random(150, 300)
        
        local anomalyPos = Vector3.new(
            BASE_POSITION.X + math.cos(angle) * radius,
            floorY,
            BASE_POSITION.Z + math.sin(angle) * radius
        )
        
        anomalyPos = Vector3.new(
            math.clamp(anomalyPos.X, -halfWidth + size/2 + 50, halfWidth - size/2 - 50),
            floorY,
            math.clamp(anomalyPos.Z, -halfLength + size/2 + 50, halfLength - size/2 - 50)
        )
        
        local blueFloor = Instance.new("Part")
        blueFloor.Name = "BlueZone_Floor_" .. i
        blueFloor.Size = Vector3.new(size, 2, size)
        blueFloor.Position = anomalyPos
        blueFloor.Anchored = true
        blueFloor.CanCollide = true
        blueFloor.Material = Enum.Material.Neon
        blueFloor.Color = Color3.fromRGB(0, 100, 255)
        blueFloor.Parent = backroomsFolder
        
        local blueLight = Instance.new("PointLight")
        blueLight.Parent = blueFloor
        blueLight.Brightness = 2
        blueLight.Range = size
        blueLight.Color = Color3.fromRGB(0, 100, 255)
        
        table.insert(anomalies, {type = "blue", position = anomalyPos, size = size})
    end
    
    -- 4. 真っ黒エリア (端にも配置)
    for i = 1, 8 do
        local angle = math.random() * math.pi * 2
        local radius = math.random(1000, halfWidth - 200)
        local size = 300 + math.random(200, 400)
        
        local anomalyPos = Vector3.new(
            BASE_POSITION.X + math.cos(angle) * radius,
            floorY,
            BASE_POSITION.Z + math.sin(angle) * radius
        )
        
        anomalyPos = Vector3.new(
            math.clamp(anomalyPos.X, -halfWidth + size/2 + 50, halfWidth - size/2 - 50),
            floorY,
            math.clamp(anomalyPos.Z, -halfLength + size/2 + 50, halfLength - size/2 - 50)
        )
        
        local blackFloor = Instance.new("Part")
        blackFloor.Name = "BlackZone_Floor_" .. i
        blackFloor.Size = Vector3.new(size, 2, size)
        blackFloor.Position = anomalyPos
        blackFloor.Anchored = true
        blackFloor.CanCollide = true
        blackFloor.Material = Enum.Material.Slate
        blackFloor.Color = Color3.fromRGB(5, 5, 5)
        blackFloor.BrickColor = BrickColor.new("Really black")
        blackFloor.Parent = backroomsFolder
        
        for j = 1, 4 do
            local blackWall = Instance.new("Part")
            blackWall.Name = "BlackZone_Wall_" .. i .. "_" .. j
            blackWall.Size = Vector3.new(size + 20, roomHeight, 5)
            blackWall.CFrame = CFrame.new(anomalyPos) * CFrame.Angles(0, (j-1) * math.pi/2, 0) * CFrame.new(0, 0, size/2 + 10)
            blackWall.Anchored = true
            blackWall.CanCollide = true
            blackWall.Material = Enum.Material.Slate
            blackWall.Color = Color3.fromRGB(2, 2, 2)
            blackWall.BrickColor = BrickColor.new("Really black")
            blackWall.Parent = backroomsFolder
        end
        
        table.insert(anomalies, {type = "black", position = anomalyPos, size = size})
    end
    
    -- 5. 天井と壁が異常に長い場所（廊下）- 端まで配置
    for i = 1, 6 do
        local angle = math.random() * math.pi * 2
        local radius = math.random(1500, halfWidth - 300)
        local length = 800 + math.random(400, 800)
        
        local startPos = Vector3.new(
            BASE_POSITION.X + math.cos(angle) * radius,
            floorY,
            BASE_POSITION.Z + math.sin(angle) * radius
        )
        
        startPos = Vector3.new(
            math.clamp(startPos.X, -halfWidth + 200, halfWidth - 200),
            floorY,
            math.clamp(startPos.Z, -halfLength + 200, halfLength - 200)
        )
        
        local endPos = startPos + Vector3.new(math.cos(angle + math.pi/2) * length, 0, math.sin(angle + math.pi/2) * length)
        endPos = Vector3.new(
            math.clamp(endPos.X, -halfWidth + 100, halfWidth - 100),
            floorY,
            math.clamp(endPos.Z, -halfLength + 100, halfLength - 100)
        )
        
        for j = 1, math.floor(length / 50) do
            local t = j / (length / 50)
            local pos = startPos:Lerp(endPos, t)
            
            local corridor = Instance.new("Part")
            corridor.Name = "EndlessCorridor_" .. i .. "_" .. j
            corridor.Size = Vector3.new(30, roomHeight * 3, 30)
            corridor.Position = pos + Vector3.new(0, roomHeight, 0)
            corridor.Anchored = true
            corridor.CanCollide = true
            corridor.Material = Enum.Material.Plastic
            corridor.Color = Color3.fromRGB(100, 100, 120)
            corridor.Parent = backroomsFolder
        end
        
        table.insert(anomalies, {type = "endless", position = startPos, length = length})
    end
    
    return anomalies
end

-- ★エンティティ生成（5000スタッド範囲内に配置）- 端まで確実に
local function createEntities(floorY, backroomsFolder, roomWidth, roomLength)
    clearEntities()
    
    local halfWidth = roomWidth / 2
    local halfLength = roomLength / 2
    local entityCount = 900  -- 増やした
    
    for i = 1, entityCount do
        local angle = math.random() * math.pi * 2
        local radius = math.random(500, 3500)  -- 範囲を広げて端まで
        
        local pos = Vector3.new(
            BASE_POSITION.X + math.cos(angle) * radius,
            floorY + 6,
            BASE_POSITION.Z + math.sin(angle) * radius
        )
        
        -- 範囲内に収める
        pos = Vector3.new(
            math.clamp(pos.X, -halfWidth + 50, halfWidth - 50),
            floorY + 6,
            math.clamp(pos.Z, -halfLength + 50, halfLength - 50)
        )
        
        local colorChoice = math.random(1, 3)
        local color
        if colorChoice == 1 then
            color = Color3.fromRGB(20, 20, 20)
        elseif colorChoice == 2 then
            color = Color3.fromRGB(30, 30, 30)
        else
            color = Color3.fromRGB(10, 10, 30)
        end
        
        local speed = 10 + math.random(0, 8)
        local aggression = 0.8 + math.random() * 0.4
        
        createEntity(pos, color, speed, aggression)
    end
    
    return entityCount
end

-- ★超広大7300スタッドバックルームズ生成関数（修正版：端まで完全生成）
local function createBackroomsLevel0()
    -- 既存のクリア
    local existingFolder = Workspace:FindFirstChild("Backrooms_Level0")
    if existingFolder then
        existingFolder:Destroy()
    end
    
    clearEntities()
    
    local atmosphere = Workspace:FindFirstChild("BackroomsAtmosphere")
    if atmosphere then
        atmosphere:Destroy()
    end
    
    -- バックルームズフォルダ作成
    local backroomsFolder = Instance.new("Folder", Workspace)
    backroomsFolder.Name = "Backrooms_Level0"
    
    -- 照明設定
    Lighting.Ambient = Color3.fromRGB(80, 80, 70)
    Lighting.Brightness = 0.5
    Lighting.Outlines = false
    
    -- ★超広大サイズ設定 (7300スタッド)
    local roomWidth = 7300
    local roomLength = 7300 
    local roomHeight = 30
    local halfWidth = roomWidth / 2
    local halfLength = roomLength / 2
    
    -- 床のY位置
    local floorY = BASE_POSITION.Y - roomHeight/2 + 2
    
    -- ★修正：端まで完全に覆う巨大な床（分割して生成）
    local floorSegments = 5  -- 5x5に分割して端まで確実に
    local segmentWidth = roomWidth / floorSegments
    local segmentLength = roomLength / floorSegments
    
    for sx = 0, floorSegments - 1 do
        for sz = 0, floorSegments - 1 do
            local floor = Instance.new("Part", backroomsFolder)
            floor.Name = string.format("Level0_Floor_%d_%d", sx, sz)
            floor.Size = Vector3.new(segmentWidth + 2, 2, segmentLength + 2)  -- オーバーラップさせて隙間なし
            floor.Position = Vector3.new(
                BASE_POSITION.X - halfWidth + segmentWidth/2 + sx * segmentWidth,
                floorY,
                BASE_POSITION.Z - halfLength + segmentLength/2 + sz * segmentLength
            )
            floor.Anchored = true
            floor.CanCollide = true
            floor.Material = Enum.Material.Fabric
            floor.Color = Color3.fromRGB(240, 200, 80)
        end
    end
    
    -- ★修正：端まで完全に覆う天井（分割して生成）
    for sx = 0, floorSegments - 1 do
        for sz = 0, floorSegments - 1 do
            local ceiling = Instance.new("Part", backroomsFolder)
            ceiling.Name = string.format("Level0_Ceiling_%d_%d", sx, sz)
            ceiling.Size = Vector3.new(segmentWidth + 2, 2, segmentLength + 2)
            ceiling.Position = Vector3.new(
                BASE_POSITION.X - halfWidth + segmentWidth/2 + sx * segmentWidth,
                floorY + roomHeight - 2,
                BASE_POSITION.Z - halfLength + segmentLength/2 + sz * segmentLength
            )
            ceiling.Anchored = true
            ceiling.CanCollide = true
            ceiling.Material = Enum.Material.Plastic
            ceiling.Color = Color3.fromRGB(200, 200, 160)
            ceiling.Transparency = 0.1
        end
    end
    
    -- ★修正：外周の壁（端まで完全に覆う）
    local wallThickness = 4
    
    -- 北側の壁（分割）
    for sx = 0, floorSegments - 1 do
        local northWall = Instance.new("Part", backroomsFolder)
        northWall.Name = "North_Wall_" .. sx
        northWall.Size = Vector3.new(segmentWidth + 2, roomHeight, wallThickness)
        northWall.Position = Vector3.new(
            BASE_POSITION.X - halfWidth + segmentWidth/2 + sx * segmentWidth,
            floorY + roomHeight/2,
            BASE_POSITION.Z + halfLength
        )
        northWall.Anchored = true
        northWall.CanCollide = true
        northWall.Material = Enum.Material.Plastic
        northWall.Color = Color3.fromRGB(220, 220, 170)
    end
    
    -- 南側の壁（分割）
    for sx = 0, floorSegments - 1 do
        local southWall = Instance.new("Part", backroomsFolder)
        southWall.Name = "South_Wall_" .. sx
        southWall.Size = Vector3.new(segmentWidth + 2, roomHeight, wallThickness)
        southWall.Position = Vector3.new(
            BASE_POSITION.X - halfWidth + segmentWidth/2 + sx * segmentWidth,
            floorY + roomHeight/2,
            BASE_POSITION.Z - halfLength
        )
        southWall.Anchored = true
        southWall.CanCollide = true
        southWall.Material = Enum.Material.Plastic
        southWall.Color = Color3.fromRGB(220, 220, 170)
    end
    
    -- 東側の壁（分割）
    for sz = 0, floorSegments - 1 do
        local eastWall = Instance.new("Part", backroomsFolder)
        eastWall.Name = "East_Wall_" .. sz
        eastWall.Size = Vector3.new(wallThickness, roomHeight, segmentLength + 2)
        eastWall.Position = Vector3.new(
            BASE_POSITION.X + halfWidth,
            floorY + roomHeight/2,
            BASE_POSITION.Z - halfLength + segmentLength/2 + sz * segmentLength
        )
        eastWall.Anchored = true
        eastWall.CanCollide = true
        eastWall.Material = Enum.Material.Plastic
        eastWall.Color = Color3.fromRGB(220, 220, 170)
    end
    
    -- 西側の壁（分割）
    for sz = 0, floorSegments - 1 do
        local westWall = Instance.new("Part", backroomsFolder)
        westWall.Name = "West_Wall_" .. sz
        westWall.Size = Vector3.new(wallThickness, roomHeight, segmentLength + 2)
        westWall.Position = Vector3.new(
            BASE_POSITION.X - halfWidth,
            floorY + roomHeight/2,
            BASE_POSITION.Z - halfLength + segmentLength/2 + sz * segmentLength
        )
        westWall.Anchored = true
        westWall.CanCollide = true
        westWall.Material = Enum.Material.Plastic
        westWall.Color = Color3.fromRGB(220, 220, 170)
    end
    
    -- ★迷路エリア（範囲内に収める）
    local mazeWidth = 300
    local mazeHeight = 300
    local cellSize = 18
    
    local maze = generateMaze(mazeWidth, mazeHeight)
    local mazeFolder = Instance.new("Folder", backroomsFolder)
    mazeFolder.Name = "MazeSection"
    
    local mazeOffsetX = BASE_POSITION.X - 3000
    local mazeOffsetZ = BASE_POSITION.Z - 3000
    
    for x = 1, mazeWidth do
        for y = 1, mazeHeight do
            if maze[x][y] == 0 and (x % 4 == 0 or y % 4 == 0) then
                local wallX = mazeOffsetX + (x - 0.5) * cellSize
                local wallZ = mazeOffsetZ + (y - 0.5) * cellSize
                
                -- 範囲内チェック
                if math.abs(wallX) < halfWidth - cellSize and math.abs(wallZ) < halfLength - cellSize then
                    local wall = Instance.new("Part", mazeFolder)
                    wall.Name = string.format("MazeWall_%d_%d", x, y)
                    wall.Size = Vector3.new(cellSize, roomHeight - 4, cellSize)
                    wall.Position = Vector3.new(
                        wallX,
                        floorY + (roomHeight - 4) / 2 + 2,
                        wallZ
                    )
                    wall.Anchored = true
                    wall.CanCollide = true
                    wall.Material = Enum.Material.Plastic
                    wall.Color = Color3.fromRGB(240, 240, 170)
                end
            end
        end
    end
    
    -- ★異常エリアの生成（端まで）
    local anomalies = createAnomalyZones(floorY, roomHeight, backroomsFolder, roomWidth, roomLength)
    
    -- ★エンティティの生成（端まで）
    local entityCount = createEntities(floorY, backroomsFolder, roomWidth, roomLength)
    
    -- ★多数の部屋（範囲内に収める）
    for i = 1, 100 do
        local roomSizeX = 40 + math.random(30, 80)
        local roomSizeZ = 40 + math.random(30, 80)
        
        local angle = math.random() * math.pi * 2
        local radius = math.random(500, 3200)
        
        local roomPos = Vector3.new(
            BASE_POSITION.X + math.cos(angle) * radius,
            floorY + (roomHeight - 4) / 2 + 2,
            BASE_POSITION.Z + math.sin(angle) * radius
        )
        
        -- 範囲内に収める
        roomPos = Vector3.new(
            math.clamp(roomPos.X, -halfWidth + roomSizeX/2 + 20, halfWidth - roomSizeX/2 - 20),
            floorY + (roomHeight - 4) / 2 + 2,
            math.clamp(roomPos.Z, -halfLength + roomSizeZ/2 + 20, halfLength - roomSizeZ/2 - 20)
        )
        
        local room = Instance.new("Part", backroomsFolder)
        room.Name = "Room_" .. i
        room.Size = Vector3.new(roomSizeX, roomHeight - 4, roomSizeZ)
        room.Position = roomPos
        room.Anchored = true
        room.CanCollide = true
        room.Material = Enum.Material.Plastic
        room.Color = Color3.fromRGB(200 + math.random(55), 200 + math.random(55), 150 + math.random(105))
    end
    
    -- ★照明（端まで）
    local lightSpacing = 120
    for x = -halfWidth + 60, halfWidth - 60, lightSpacing do
        for z = -halfLength + 60, halfLength - 60, lightSpacing do
            local light = Instance.new("Part", backroomsFolder)
            light.Name = string.format("Light_%d_%d", x, z)
            light.Size = Vector3.new(40, 0.3, 40)
            light.Position = Vector3.new(BASE_POSITION.X + x, floorY + roomHeight - 3, BASE_POSITION.Z + z)
            light.Anchored = true
            light.CanCollide = false
            light.Material = Enum.Material.Neon
            light.Color = Color3.fromRGB(255, 255, 200)
            
            local pointLight = Instance.new("PointLight", light)
            pointLight.Brightness = 0.8
            pointLight.Range = 100
            pointLight.Color = Color3.fromRGB(255, 255, 180)
        end
    end
    
    -- 霧効果
    local atmosphere = Instance.new("Atmosphere", Workspace)
    atmosphere.Name = "BackroomsAtmosphere"
    atmosphere.Density = 0.5
    atmosphere.Color = Color3.fromRGB(180, 180, 130)
    atmosphere.Decay = Color3.fromRGB(70, 70, 50)
    atmosphere.Glare = 0.3
    atmosphere.Haze = 4.0
    
    -- 環境音
    local soundFolder = Instance.new("Folder", backroomsFolder)
    soundFolder.Name = "AmbienceSounds"
    
    local fanSound = Instance.new("Sound", soundFolder)
    fanSound.Name = "Level0_Hum"
    fanSound.SoundId = "rbxassetid://" .. BACKROOMS_SOUND_ID
    fanSound.Looped = true
    fanSound.Volume = 0.5
    fanSound:Play()
    
    local horrorSound = Instance.new("Sound", soundFolder)
    horrorSound.Name = "HorrorAmbience"
    horrorSound.SoundId = "rbxassetid://27697743"
    horrorSound.Looped = true
    horrorSound.Volume = 0.3
    horrorSound:Play()
    
    -- ★プレイヤーを中央に配置
    local character = player.Character
    if character and character:FindFirstChild("HumanoidRootPart") then
        character.HumanoidRootPart.CFrame = CFrame.new(
            BASE_POSITION.X,
            floorY + 5,
            BASE_POSITION.Z
        )
    end
    
    return {
        folder = backroomsFolder,
        width = roomWidth,
        length = roomLength,
        height = roomHeight,
        position = BASE_POSITION,
        entityCount = entityCount,
        anomalyCount = #anomalies
    }
end

-- バックルームズ削除関数
local function clearBackrooms()
    local backroomsFolder = Workspace:FindFirstChild("Backrooms_Level0")
    if backroomsFolder then
        backroomsFolder:Destroy()
    end
    
    clearEntities()
    
    local atmosphere = Workspace:FindFirstChild("BackroomsAtmosphere")
    if atmosphere then
        atmosphere:Destroy()
    end
    
    Lighting.Ambient = Color3.fromRGB(0.5, 0.5, 0.5)
    Lighting.Brightness = 1
    
    return "Backrooms cleared"
end

-- ボタン作成
local noclipButton = createButton("① SPAWN 7300 FIXED", Color3.fromRGB(200, 0, 100), 40)
noclipButton.Parent = buttonContainer

local frontRoomButton = createButton("② DELETE BACKROOMS", Color3.fromRGB(255, 60, 60), 35)
frontRoomButton.Parent = buttonContainer

-- ステータス表示
local statusLabel = Instance.new("TextLabel")
statusLabel.Name = "StatusLabel"
statusLabel.Size = UDim2.new(1, -10, 0, 30)
statusLabel.Position = UDim2.new(0, 5, 1, -70)
statusLabel.BackgroundTransparency = 1
statusLabel.TextColor3 = Color3.fromRGB(180, 180, 220)
statusLabel.Text = "Ready - Unpinned"
statusLabel.Font = Enum.Font.Gotham
statusLabel.TextSize = 10
statusLabel.TextWrapped = true
statusLabel.TextXAlignment = Enum.TextXAlignment.Left
statusLabel.Parent = mainFrame

-- GUI固定状態
local isGUIPinned = false

local function toggleGUIPin()
    isGUIPinned = not isGUIPinned
    
    if isGUIPinned then
        pinButton.Text = "Unpin GUI"
        pinButton.BackgroundColor3 = Color3.fromRGB(120, 80, 180)
        statusLabel.Text = "GUI Fixed"
        statusLabel.TextColor3 = Color3.fromRGB(180, 140, 255)
    else
        pinButton.Text = "Fixed GUI"
        pinButton.BackgroundColor3 = Color3.fromRGB(160, 100, 220)
        statusLabel.Text = "GUI Unpinned"
        statusLabel.TextColor3 = Color3.fromRGB(180, 180, 220)
    end
end

-- AI更新ループ
RunService.Heartbeat:Connect(function(dt)
    updateEntities(dt)
end)

-- ① スポーンボタン
noclipButton.MouseButton1Click:Connect(function()
    playSound(BUTTON_SOUND_ID)
    
    statusLabel.Text = "🚀 Creating FIXED 7300x7300 Backrooms..."
    statusLabel.TextColor3 = Color3.fromRGB(255, 100, 200)
    
    local success, result = pcall(function()
        return createBackroomsLevel0()
    end)
    
    if success then
        local info = result
        statusLabel.Text = string.format("✅ 7300x7300 | Entities: %d | Anomalies: %d", 
            info.entityCount or 0, info.anomalyCount or 0)
        statusLabel.TextColor3 = Color3.fromRGB(100, 255, 100)
        
        task.wait(3)
        statusLabel.Text = "⚠️ 40 studs = DEATH! Full area covered!"
    else
        statusLabel.Text = "❌ Spawn failed: " .. tostring(result)
        statusLabel.TextColor3 = Color3.fromRGB(255, 100, 100)
    end
end)

-- ② 削除ボタン
frontRoomButton.MouseButton1Click:Connect(function()
    playSound(BUTTON_SOUND_ID)
    
    local backroomsExists = Workspace:FindFirstChild("Backrooms_Level0") ~= nil
    
    if not backroomsExists then
        statusLabel.Text = "ℹ️ No Backrooms to delete"
        statusLabel.TextColor3 = Color3.fromRGB(200, 200, 200)
        return
    end
    
    statusLabel.Text = "🗑️ Deleting Fixed Backrooms..."
    statusLabel.TextColor3 = Color3.fromRGB(255, 150, 100)
    
    local message = clearBackrooms()
    
    statusLabel.Text = "✅ " .. message
    statusLabel.TextColor3 = Color3.fromRGB(100, 255, 100)
end)

-- GUI固定ボタン
pinButton.MouseButton1Click:Connect(function()
    playSound(BUTTON_SOUND_ID)
    toggleGUIPin()
    statusLabel.Text = isGUIPinned and "✅ GUI Fixed" or "✅ GUI Unpinned"
    statusLabel.TextColor3 = Color3.fromRGB(180, 140, 255)
end)

-- トグル機能
toggleButton.MouseButton1Click:Connect(function()
    playSound(BUTTON_SOUND_ID)
    if buttonContainer.Visible then
        buttonContainer.Visible = false
        mainFrame.Size = UDim2.new(0, 200, 0, 80)
        toggleButton.Text = "Show"
        statusLabel.Text = "GUI Hidden"
    else
        buttonContainer.Visible = true
        mainFrame.Size = UDim2.new(0, 200, 0, 180)
        toggleButton.Text = "Hide"
        statusLabel.Text = isGUIPinned and "GUI Fixed" or "GUI Unpinned"
    end
end)

-- ドラッグ機能
local dragging = false
local dragStart, startPos

local function handleDragStart(input)
    if not isGUIPinned then
        dragging = true
        dragStart = input.Position
        startPos = mainFrame.Position
        
        input.Changed:Connect(function()
            if input.UserInputState == Enum.UserInputState.End then
                dragging = false
            end
        end)
    end
end

local function handleDrag(input)
    if dragging and not isGUIPinned then
        local delta = input.Position - dragStart
        mainFrame.Position = UDim2.new(
            startPos.X.Scale, 
            startPos.X.Offset + delta.X, 
            startPos.Y.Scale, 
            startPos.Y.Offset + delta.Y
        )
    end
end

title.InputBegan:Connect(function(input)
    if input.UserInputType == Enum.UserInputType.MouseButton1 or input.UserInputType == Enum.UserInputType.Touch then
        handleDragStart(input)
    end
end)

title.InputChanged:Connect(function(input)
    if input.UserInputType == Enum.UserInputType.MouseMovement or input.UserInputType == Enum.UserInputType.Touch then
        handleDrag(input)
    end
end)

-- 初期化メッセージ
statusLabel.Text = "✅ 7300x7300 FIXED Backrooms GUI Loaded"
task.wait(2)
statusLabel.Text = "Ready - Unpinned"