Check who is seeing you

 Players = :()
 RunService = :()
 LocalPlayer = Players.LocalPlayer


 FOV_ANGLE =  
 MAX_VISION_DISTANCE =  
 SCAN_INTERVAL =  
 VISUALIZE =  


 FOV_RADIANS = .(FOV_ANGLE)


 playersWhoSeeYou = {}


  ()
	 screenGui = .()
	screenGui.Name = 
	screenGui.ResetOnSpawn = 
	screenGui.Parent = LocalPlayer:()
	
	 frame = .()
	frame.Size = .(, , , )
	frame.Position = .(, -, , )
	frame.BackgroundColor3 = .(, , )
	frame.BackgroundTransparency = 
	frame.BorderSizePixel = 
	frame.Parent = screenGui
	
	 corner = .()
	corner.CornerRadius = .(, )
	corner.Parent = frame
	
	 title = .()
	title.Size = .(, -, , )
	title.Position = .(, , , )
	title.BackgroundTransparency = 
	title.Text = 
	title.TextColor3 = .(, , )
	title.TextSize = 
	title.Font = .Font.GothamBold
	title.TextXAlignment = .TextXAlignment.Left
	title.Parent = frame
	
	 listFrame = .()
	listFrame.Size = .(, -, , -)
	listFrame.Position = .(, , , )
	listFrame.BackgroundTransparency = 
	listFrame.BorderSizePixel = 
	listFrame.ScrollBarThickness = 
	listFrame.Parent = frame
	
	 listLayout = .()
	listLayout.SortOrder = .SortOrder.Name
	listLayout.Padding = .(, )
	listLayout.Parent = listFrame
	
	 listFrame


 listFrame = ()


  ()
	
	 _, child  (listFrame:()) 
		 child:() 
			child:()
		
	
	
	
	 playerName, data  (playersWhoSeeYou) 
		 label = .()
		label.Size = .(, , , )
		label.BackgroundColor3 = .(, , )
		label.BackgroundTransparency = 
		label.Text = playerName ..  .. .(data.distance) .. 
		label.TextColor3 = .(, , )
		label.TextSize = 
		label.Font = .Font.Gotham
		label.Parent = listFrame
		
		 corner = .()
		corner.CornerRadius = .(, )
		corner.Parent = label
	



  (observerPos, observerLookVector, targetPos, fovRadians, maxDistance)
	 toTarget = targetPos - observerPos
	 distance = toTarget.Magnitude
	
	
	 distance > maxDistance 
		 , distance
	
	
	
	 directionToTarget = toTarget.Unit
	
	
	 dotProduct = observerLookVector:(directionToTarget)
	 angleRadians = .(.(dotProduct, -, ))
	
	
	 angleRadians <= fovRadians, distance



  (fromPos, toPos, ignoreList)
	 direction = toPos - fromPos
	 distance = direction.Magnitude
	
	 raycastParams = RaycastParams.()
	raycastParams.FilterDescendantsInstances = ignoreList
	raycastParams.FilterType = .RaycastFilterType.Exclude
	raycastParams.IgnoreWater = 
	
	 result = :(fromPos, direction, raycastParams)
	
	
	  result 
		 
	
	
	
	 hitDistance = (result.Position - fromPos).Magnitude
	 hitDistance >= distance -  



 visualParts = {}
  (character, canSeeLocalPlayer)
	  VISUALIZE   
	
	
	 charName = character.Name
	 visualParts[charName] 
		 _, part  (visualParts[charName]) 
			part:()
		
	
	visualParts[charName] = {}
	
	 head = character:()
	  head   
	
	
	 cone = .()
	cone.Shape = .PartType.Block
	cone.Size = .(, , MAX_VISION_DISTANCE / )
	cone.CFrame = head.CFrame * .(, , -MAX_VISION_DISTANCE / )
	cone.Color = canSeeLocalPlayer  .(, , )  .(, , )
	cone.Transparency = 
	cone.CanCollide = 
	cone.Anchored = 
	cone.Material = .Material.Neon
	cone.Parent = 
	
	.(visualParts[charName], cone)
	
	
	.(SCAN_INTERVAL + , ()
		 cone  cone.Parent 
			cone:()
		
	)



  ()
	 localChar = LocalPlayer.Character
	  localChar   
	
	 localRoot = localChar:()
	 localHead = localChar:()
	  localRoot   localHead   
	
	 localPos = localHead.Position
	
	
	playersWhoSeeYou = {}
	
	
	 _, player  (Players:()) 
		 player ~= LocalPlayer 
			 char = player.Character
			 char 
				 humanoid = char:()
				 head = char:()
				 root = char:()
				
				 humanoid  humanoid.Health >   head  root 
					
					 lookVector = root.CFrame.LookVector
					 observerPos = head.Position
					
					
					 inCone, distance = (observerPos, lookVector, localPos, FOV_RADIANS, MAX_VISION_DISTANCE)
					
					 inCone 
						
						 ignoreList = {localChar, char}
						 hasLOS = (observerPos, localPos, ignoreList)
						
						 hasLOS 
							playersWhoSeeYou[player.Name] = {
								distance = distance,
								player = player
							}
							(char, )
						
							(char, )
						
					
						(char, )
					
				
			
		
	
	
	()



 lastScan = 
RunService.Heartbeat:(()
	 now = ()
	 now - lastScan >= SCAN_INTERVAL 
		lastScan = now
		()
	
)


Players.PlayerRemoving:((player)
	 visualParts[player.Name] 
		 _, part  (visualParts[player.Name]) 
			part:()
		
		visualParts[player.Name] = 
	
)

()
()
()