- What do you want to achieve? Keep it simple and clear!
I’m trying to use Dot Product to detect when a player is in the field of vision of an NPC.
- What is the issue? Include screenshots / videos if possible!
On line 7, the code displays “Players.ChrisCraft771.PlayerScripts.NightMareView:7: attempt to index nil with ‘Head’”
- What solutions have you tried so far? Did you look for solutions on the Developer Hub?
I was unable to think of any potential solutions to this issue.
local RunService = game:GetService("RunService") local npc = workspace.The_NightMare local character = game.Players.LocalPlayer.Character RunService.RenderStepped:Connect(function() local npcToCharacter = (character.Head.Position - npc.Head.Position).Unit -- This is the line of code which breaks local npcLook = npc.Head.CFrame.LookVector local dotProduct = npcToCharacter:Dot(npcLook) if dotProduct > .4 then -- in view else -- not in view end end)