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Parts that know when the player is/isn't looking at them?

Asked by

Troidit 253

8 years ago

Edited 8 years ago

I've seen it done on games before so I know it's possible.

I'm trying to create a scenario where when the player looks at an object, looks away, and looks back again, the object is removed/destroyed. I've tried using a local script, and using the function WorldToScreenPoint() with the camera but I failed tragically.

How would I accomplish this?

My failed attempt that gave me the error "Unable to cast array to Vector3"

1local cam = workspace.CurrentCamera
2 
3while true do
4    if cam:WorldToScreenPoint({-28, 0.6, 25}) == true then --checking if anyone is looking at camera
5        repeat wait() until cam:WorldToScreenPoint({-28, 0.6, 25}) == false -- waits until they aren't looking at the camera
6        game.Workspace.Part:Destory()
7    end
8end

Good Question. User#11440 120 — 8y

1 answer

Answered by

TheLowOne 85

8 years ago

Edited 8 years ago

Using the Camera method is a good idea, do you still have the code with it? If I was in this scenario I would use it. Sorry I cannot use the comments yet, so if you do paste it, ill edit this post again.

EDITED (6:42) - the error you got is because it returns 2 values, a Vector3 and a boolean EDITED (6:44) - Just looked at your code again, the argument for it needs to be a Vector3 also

01--[[
02It seemed to work for me, but remember it is an example, it is not meant to be good I guess.
03]]
04local player = game:GetService("Players").LocalPlayer
05local workspace = game:GetService("Workspace")
06local camera = workspace:FindFirstChild("Camera") --you could do workspace.CurrentCamera
07local test = workspace:FindFirstChild("TestPart")
08local deb = false
09local counter = 0
10 
11function Looked()
12    if (not camera) then return end
13    if (not test) then return end
14    local a, b = camera:WorldToScreenPoint(test.CFrame.p)
15 
16    if (b == true) then
17        deb = true
18    end
19 
20    if (b == false) then
21        if (deb == true) then
22            counter = counter + 1
23            print("Looked af") 
24        end
25        deb = false
26    end
27end
28 
29game:GetService("RunService").RenderStepped:connect(function()
30    Looked()
31    if (counter == 2) then --depending on whether you want them to look at it again before it disappear or disappears after one look depends 
32        test:Destroy()
33    end
34end)
 View all 34 lines...

my comment did not complete

Theres one thing wrong with it, you should disconnect the event when (RenderStepped) when the part is no more, and instead of upvaluing the test variable from the main scope, you could pass it as an argument in the function

Ill make an example TheLowOne 85 — 8y

I tried it on a new place that I didn't save. But I can make the code again quickly Troidit 253 — 8y

also TheLowOne 85 — 8y

The error you got is because it returns 2 results TheLowOne 85 — 8y

Parts that know when the player is/isn't looking at them?

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