local humanoid = script.Parent:WaitForChild("Humanoid")
local animationController = humanoid:WaitForChild("AnimationController")
local monster = game.Workspace.Monster
local player = nil
local sight = script.Parent:WaitForChild("Sight")
local chaseRange = 10 -- Adjust the chase range as needed
local idleAnimation = animationController:LoadAnimation(game.Workspace.Animations.Monster.Idle)
local walkAnimation = animationController:LoadAnimation(game.Workspace.Animations.Monster.Walk)

local waypointReachedDistance = 2
local patrolWaypoints = {
    Vector3.new(10, 0, 0),
    Vector3.new(0, 0, 10),
    Vector3.new(-10, 0, 0),
    Vector3.new(0, 0, -10),
} -- Define waypoints for the monster to patrol

local lineOfSightRange = 20

local function StartChase()
    walkAnimation:Play()
end

local function StopChase()
    walkAnimation:Stop()
    idleAnimation:Play()
end

local function CheckPlayerInSight()
    local direction = (player.Character.HumanoidRootPart.Position - monster.Position).Magnitude
    if direction <= chaseRange then
        -- Check if there is a clear line of sight to the player
        local raycastParams = RaycastParams.new()
        raycastParams.FilterType = Enum.RaycastFilterType.Blacklist
        raycastParams.FilterDescendantsInstances = {monster}

        local result = workspace:Raycast(monster.Position, player.Character.HumanoidRootPart.Position - monster.Position, raycastParams)
        if result and result.Instance:IsDescendantOf(player.Character) then
            StartChase()
        else
            StopChase()
        end
    else
        StopChase()
    end
end

local function OnTouched(part)
    if part.Parent:FindFirstChild("Humanoid") then
        player = part.Parent
        CheckPlayerInSight()
    end
end

sight.Touched:Connect(OnTouched)

while true do
    wait(0.1)
    
    if player then
        local direction = player.Character.HumanoidRootPart.Position - monster.Position
        local distanceToPlayer = direction.Magnitude
        
        if distanceToPlayer > chaseRange then
            StopChase()
            player = nil
        else
            -- Chase the player
            humanoid:MoveTo(player.Character.HumanoidRootPart.Position)
        end
    else

        if #patrolWaypoints > 0 then
            local currentWaypointIndex = 1
            local currentWaypoint = patrolWaypoints[currentWaypointIndex]
            
            local distanceToWaypoint = (currentWaypoint - monster.Position).Magnitude
            if distanceToWaypoint <= waypointReachedDistance then
                currentWaypointIndex = currentWaypointIndex + 1
                
                if currentWaypointIndex > #patrolWaypoints then
                    currentWaypointIndex = 1
                end
                
                currentWaypoint = patrolWaypoints[currentWaypointIndex]
            end
            
            humanoid:MoveTo(currentWaypoint)
        else
            -- Idle behavior
            StopChase()
        end
    end
end