Make a Smart NPC

Help and Feedback Scripting Support
#1

I wan’t to make a gamemode in my game (Capture The Flag) and this gamemode is for 2 players, well i want to make this for 1 player, the other player is an NPC, well, i have some problems, i want to the NPC walks to the flag in a path, not straight, and later that he comes back and if he finds a player he do something. Could you help me? Thanks :+1:

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#2

You can use pathfinding.

local PathfindingService = game:GetService("PathfindingService")

local npc = game.Workspace.NPC
local humanoid = npc.Humanoid
local destination = game.Workspace.RedTeamsFlag

local path = PathfindingService:CreatePath()

path:ComputeAsync(npc.HumanoidRootPart.Position, destination.PrimaryPart.Position)
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#3

I can keep the script inside of the NPC and say that the npc is the parent?

#4

Yes, you can. (30 characters…)

#5

So what we’re talking about here is an NPC that can perform different actions, depending on different situations.

Lets break these down briefly into some States;

  1. Searching for the flag
  2. Capturing the flag
  3. Attacking the player
  4. Chasing the player
  5. Chasing the player (With flag)
  6. Dead

Ok, so now we’ve defined a pretty limited amount of States our NPC can be in at any one time. This sort of layout lends itself to the use of “StateMachines”. Theres actually a pretty nice version of this system in use in the model: https://www.roblox.com/library/187790284/Soldier by @UristMcSparks
But for a more in-depth explanation of the idea, heres a step by step look at making and using one in Unity
https://www.youtube.com/watch?v=YdERlPfwUb0
Okay, so using this, we could make a pretty simple NPC State Machine, while this won’t be the most powerful thing, you will be able to do a lot with it!
Heres what I managed to make using nearly the same state machine as inside that model;
Brutal (Alpha) - Roblox

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#6

Well, does Unity use LUA? I would like to try Unity but my laptop has the power of an average phone.

#7

I set this in a blank R6 character from Moon animator, and this is not working:

 

local PathfindingService = game:GetService("PathfindingService")
    wait(10) 
    
    local zombie = script.Parent
    local humanoid = zombie.Humanoid
    local destination = game.Workspace.easnr

    local path = PathfindingService:CreatePath()
    
    path:ComputeAsync(zombie.HumanoidRootPart.Position, destination.PrimaryPart.Position)
#8

Do you get any errors in output?

Also make sure that:

  1. The character has a HumanoidRootPart.
  2. The destination is a model with a “Primary part”. Change it through properties of the model
#9

I don’t have any error

Yes it has, Moon animator’s loading dummy will always have a HumanoidRootPart, since that is required to animate.

That was my first error but i already fixed it and there’s not any change.

#10

I made this uncopylocked place:

Feel free to use it for your game!
Good luck!

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