My Monster AI Isn't Chasing me Correctly

Help and Feedback Scripting Support
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#1

Video

robloxapp-20240719-1753242.wmv (5.8 MB)

Here is the AI Script

local Monster = script.Parent
local humanoid = Monster.Humanoid
local pathfindingService = game:GetService(“PathfindingService”)
Monster.PrimaryPart:SetNetworkOwner(nil)

local Track = humanoid:LoadAnimation(script.WalkAnim)
Track.Looped = true
Track:Play()

local function canSeeTarget(target)
local origin = Monster.HumanoidRootPart.Position
local direction = (target.HumanoidRootPart.Position - Monster.HumanoidRootPart.Position).unit * 40
local ray = Ray.new(origin, direction)

local hit, pos = workspace:FindPartOnRay(ray, Monster)

if hit then
	if hit:IsDescendantOf(target) then
		return true
	end
else
	return false
end

end

local function findTarget()
local players = game.Players:GetPlayers()
local maxDistance = 50
local nearestTarget

for index, player in pairs(players) do
	if player.Character then
		local target = player.Character
		local distance = (Monster.HumanoidRootPart.Position - target.HumanoidRootPart.Position).Magnitude

		if distance < maxDistance and canSeeTarget(target) then
			nearestTarget = target
			maxDistance = distance
		end
	end
end

return nearestTarget

end

local function getPath(destination)
local pathParams = {
[“AgentHeight”] = 5,
[“AgentRadius”] = 4,
[“AgentCanJump”] = false
}

local path = pathfindingService:CreatePath(pathParams)
path:ComputeAsync(Monster.HumanoidRootPart.Position, destination.Position)

return path

end

local function attack(target)
end

local function walkTo(destination)
local path = getPath(destination)

if path.Status == Enum.PathStatus.Success then
	for index, waypoint in pairs(path:GetWaypoints()) do
		local target = findTarget()

		if target and target.Humanoid.Health > 0 then
			attack(target)
			break
		else
			humanoid:MoveTo(waypoint.Position)
			humanoid.MoveToFinished:Wait()
		end
	end
else
	humanoid:MoveTo(destination.Position - (Monster.HumanoidRootPart.CFrame.LookVector * 10))
end

end

local function patrol()
local wayPoints = workspace.Waypoints:GetChildren()
local randomNum = math.random(1, #wayPoints)
walkTo(wayPoints[randomNum])
end

while wait(0.5) do
patrol()
end

Here is the Game

I just want it to chase me, and when it stops chasing, it goes back to wandering around.

#2

It seems like your code isn’t formatted correctly. Which can cause problems.

Here it is correctly formatted for others to read:

local Monster = script.Parent
local humanoid = Monster.Humanoid
local pathfindingService = game:GetService("PathfindingService")
Monster.PrimaryPart:SetNetworkOwner(nil)

local Track = humanoid:LoadAnimation(script.WalkAnim)
Track.Looped = true
Track:Play()

local function canSeeTarget(target)
	local origin = Monster.HumanoidRootPart.Position
	local direction = (target.HumanoidRootPart.Position - Monster.HumanoidRootPart.Position).unit * 40
	local ray = Ray.new(origin, direction)

	local hit, pos = workspace:FindPartOnRay(ray, Monster)

	if hit then
		if hit:IsDescendantOf(target) then
			return true
		end
	else
		return false
	end

end

local function findTarget()
	local players = game.Players:GetPlayers()
	local maxDistance = 50
	local nearestTarget

	for index, player in pairs(players) do
		if player.Character then
			local target = player.Character
			local distance = (Monster.HumanoidRootPart.Position - target.HumanoidRootPart.Position).Magnitude

			if distance < maxDistance and canSeeTarget(target) then
				nearestTarget = target
				maxDistance = distance
			end
		end
	end

	return nearestTarget

end

local function getPath(destination)
	local pathParams = {
		["AgentHeight"] = 5,
		["AgentRadius"] = 4,
		["AgentCanJump"] = false
	}

	local path = pathfindingService:CreatePath(pathParams)
	path:ComputeAsync(Monster.HumanoidRootPart.Position, destination.Position)

	return path

end

local function attack(target)
end

local function walkTo(destination)
	local path = getPath(destination)

	if path.Status == Enum.PathStatus.Success then
		for index, waypoint in pairs(path:GetWaypoints()) do
			local target = findTarget()

			if target and target.Humanoid.Health > 0 then
				attack(target)
				break
			else
				humanoid:MoveTo(waypoint.Position)
				humanoid.MoveToFinished:Wait()
			end
		end
	else
		humanoid:MoveTo(destination.Position - (Monster.HumanoidRootPart.CFrame.LookVector * 10))
	end

end

local function patrol()
	local wayPoints = workspace.Waypoints:GetChildren()
	local randomNum = math.random(1, #wayPoints)
	walkTo(wayPoints[randomNum])
end

while wait(0.5) do
	patrol()
end
1 Like
#3

Sorry, I’m new to roblox development, What do you mean by “code isn’t formatted correctly”?

#4

There’s nothing wrong with your code, the way its shown is what’s going wrong.

In your post, the code is being split being a paragraph to being back to code, and it’s cycling between them.

#5

Ohhh, sorry i didnt know how to do the code in the section, thanks for that, I am also new to devforum, do you have any solutions for the bug though? If not its perfectly fine

#6

By the way If there are any tutorials on youtube or models I can use to replace that current AI System That uses waypoints I would gladly do that