Zombies chase only one person

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#1

Hello! I have a classic zombie place and at the very beginning of development, I had inserted some classic zombies from Free Models as Placeholders for the future zombies of mine.

But a few days ago I faced a problem, when a zombie chases only one person. To solve the problem I’ve taken DevKing’s script and slightly modified it, so it looks like this:

local zombie = script.Parent
local zombieHumanoid = zombie.Humanoid
local zombieTorso = zombie.Torso
local distance = 200

local function FindNearestTorso()
local aggroDistance = distance
	for i, v in pairs(game.Workspace:GetChildren()) do
		if v:FindFirstChild("Humanoid") and v:FindFirstChild("Humanoid") ~= zombieHumanoid then
			if (v.LowerTorso.Position - zombieTorso.Position).magnitude < aggroDistance then 
				aggroDistance = (v:FindFirstChild("LowerTorso").Position - zombieTorso.Position).magnitude 
				return v:FindFirstChild("Torso") --Returns the position of the target
				end
			end
		end
end

while wait (math.random(1,5)) do
	local target = FindNearestTorso() 
	if target ~= nil then
		zombieHumanoid:MoveTo(target.Position, target) 
	end
end

I’ve inserted a simple R15 Dummy to test out new Zombie AI, but that didn’t solve the issue. Zombie is chasing the Dummy even when I am closer to him. It just doesn’t pay any attention to me.

Then I deleted the Dummy and asked my friend to test Zombie AI with me. I joined my game first, my friend joined second. Zombie was chasing me even when the friend was closer. When I left the game zombie started to chase my friend, but when I rejoined zombie suddenly started to chase me again.
Also I want to note, that this bug appeared after I had put the zombie into a folder to organise Workspace. Reverse action doesn’t solve the issue.
Any help is appreciated!

#2

That’s because the FindNearestTorso function keeps on returning when it finds a close enough humanoid, so it doesn’t check the others.

#3 
local zombie = script.Parent
local zombieHumanoid = zombie.Humanoid
local zombieTorso = zombie.Torso
local distance = 200

local function FindNearestTorso()
local aggroDistance = distance
local target = nil
	for i, v in pairs(game.Workspace:GetChildren()) do
		if v:FindFirstChild("Humanoid") and v:FindFirstChild("Humanoid") ~= zombieHumanoid then
			if (v.LowerTorso.Position - zombieTorso.Position).magnitude < aggroDistance then 
				aggroDistance = (v:FindFirstChild("LowerTorso").Position - zombieTorso.Position).magnitude 
				target = v.LowerTorso
			end
		end
	end
	return target
end

while wait(math.random(1,5)) do
	local target = FindNearestTorso() 
	if target ~= nil then
		zombieHumanoid:MoveTo(target.Position, target) 
	end
end
2 Likes
#4

Why LowerTorso instead of PrimaryPart?

#5

He’s using R15 and that is his preference.

#6

Oh oops my bad. I was confused cause I usually see people using the HumanoidRootPart or simply the PrimaryPart.

#7

It’s better to return HumanoidRootPart tbh because it support both R15 and R6

1 Like
#8

I am sorry, but this code doesn’t work properly. Now the zombie just travels to target.Position and doesn’t move anywhere when he reaches its destination.

#9

Oh, thank you for advice, I will use HumanoidRootPart instead

#10

Because you coded the script to move to the target position and not anywhere else…

#11

But the first version of this script (you can find it inside classic zombies) uses the same mechanism and it’s still working as intended. :thinking:

#12

What exactly is the problem? The zombie stop moving?

#13

Try removing the math.random(1,5) and just do wait()

#14

Yes, it reaches its destination (i.e. the very first Position of the character’s lower torso) and then stops moving.

Upd:

Try removing the math.random(1,5) and just do wait()

Nothing changes

#16

Good idea, the zombie should lose interest of the player when It’s out of range.

#17

I didn’t set the distance loll

#18

oh, lol. Even if It’s not what you meant, It’s still not a bad idea.

#19

What is this and how to do this?

#20

I just wrote this script for you, I didn’t test it in Studio yet so if you find any problem let me know

local zombie = script.Parent
local zombieHumanoid = zombie.Humanoid
local zombieTorso = zombie.Torso
local distance = 200
local target = nil

local function FindNearestTorso()
	local aggroDistance = distance
	for i, v in pairs(game.Workspace:GetChildren()) do
		if v:FindFirstChild("Humanoid") and v ~= zombie then
			if target == nil then
				if (v.PrimaryPart.Position - zombieTorso.Position).Magnitude < aggroDistance then 
					target = v.PrimaryPart
				end
			else
				if (target.Position - zombieTorso.Position).Magnitude > (v.PrimaryPart.Position - zombieTorso.Position).Magnitude then
					target = v.PrimaryPart
				end
			end
		end
	end
end

while game:GetService("RunService").Heartbeat:Wait() do
	if target ~= nil then
		wait(math.random(1,5))
		zombieHumanoid:MoveTo(target.Position, target) 
	else
		FindNearestTorso()
	end
end
2 Likes
#21

That’s not part of the script, that’s because to write a topic or an answer on the forum you have to reach at least 30 letters lmao.