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How to make an NPC do something when a character walks IN FRONT of it?

Asked by

6 years ago

Im trying to remake a Notoriety guard, and ALL i need is a way to find out how to print "Detected" (easy) but when a player or the character i mean walkes IN FORNT of it? I tried making an accesory with part that is transparent, (now its not becasue im testing) and this script didnt work:

01local SearchDistance = 10000
02 
03local NPC = script.Parent
04local HRP = NPC.HumanoidRootPart
05local Humanoid = NPC:FindFirstChildOfClass("Humanoid")
06 
07local function getNearestPlayer()
08    local playerDistances = {}
09    if HRP then
10        for i, player in pairs(game.Players:GetPlayers()) do
11            -- get the distance between the player's character and the HRP's position
12            local distance = player:DistanceFromCharacter(HRP.Position)
13            -- 'table.insert(x, y, z)' has 3 arguments. x = table(array), y = number position (optional), z = variable/object/instance your adding to the table
14            table.insert(
15                playerDistances,
16                {
17                    player,
18                    distance
19                }
20            )
21        end
22    end
23    if #playerDistances >= 1 then
24        --'table.sort(x, y)' has 2 arguments. x = table(array), y = function (optional)
25        table.sort(
26            playerDistances,
27            function(a, b) -- 'a' and 'b' is the data/table inserted into the 'playerDistances' table
28                -- we are comparing the distances and ordering them from least to greatest
29                -- so we get the data's second value 'a[2]' and 'b[2]' which is the distances
30                return a[2] < b[2]
31            end
32        )
33        for i, dataTable in pairs(playerDistances) do 
34            local player = dataTable[1]
35            local distance = dataTable[2]
36            if player and distance then
37                -- 'i' is the number position of the 'dataTable'
38                if i == 1 and distance < SearchDistance then
39                    return player
40                end
41            end
42        end
43    end
44end
45 
46if HRP and Humanoid.Health > 0 then
47    wait(.5)
48    local nearestPlayer = getNearestPlayer()
49    if nearestPlayer and nearestPlayer.Character.Masked.Value == true then
50game.Workspace.guard.sight.Handle.Touched:Connect(function(c)
51print("detected")
52script.Parent.Torso.Anchored = false
53script:Destroy()
54    end)
55end
56end
 View all 56 lines...

pay attention to

01if HRP and Humanoid.Health > 0 then
02    wait(.5)
03    local nearestPlayer = getNearestPlayer()
04    if nearestPlayer and nearestPlayer.Character.Masked.Value == true then
05game.Workspace.guard.sight.Handle.Touched:Connect(function(c)
06print("detected")
07script.Parent.Torso.Anchored = false
08script:Destroy()
09    end)
10end
11end

it doesnt print anything, i tried script.Parent which is the actual model /NPC, it say parent is NIL!?!?!???

please help

Try using tostring(nearestplayer) retrobricks 162 — 6y

just an fyi, instead of an invisible part, you may want to use raycasting. Mr_Pure 129 — 6y

you can use raycasting hellmatic 1523 — 6y

1 answer

Answered by

retrobricks 162

6 years ago

01if HRP and Humanoid.Health > 0 then
02    wait(.5)
03    local nearestPlayer = getNearestPlayer()
04Local np = tostring(nearestPlayer)
05    if np and np.Character.Masked.Value == true then
06game.Workspace.guard.sight.Handle.Touched:Connect(function(c)
07print("detected")
08script.Parent.Torso.Anchored = false
09script:Destroy()
10    end)
11end
12end

I did this on mobile so my capitalisations may be wrong!

no but the script.Parent is the NPC and not the player. im not having trouble with player that clicks it. CommanderCaubunsia 126 — 6y

Your question was to fix the printing, so I answered it. It’s becoming a nil value because your referencing a function not a number, string or Boolean, retrobricks 162 — 6y

im not talking about that though, i even tested it and it obviously makes no difference, why did i eve test it, because your changing somehting that relates to the character touching it, not the NPC!!!!!! CommanderCaubunsia 126 — 6y

Ok lets focus on making a NEW script, how did Brick_man manage to make a script that makes NPC act like your detected (i dont need that part yet) when you walk in FRONT of them and not just touch them? CommanderCaubunsia 126 — 6y

View all comments (2 more)

It says in the question why it isn’t printing, over than that it looks like I cannot help you retrobricks 162 — 6y

dont care CommanderCaubunsia 126 — 6y

How to make an NPC do something when a character walks IN FRONT of it?

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