hey, I’m trying to make my own “The Rake” game. I have issues with pathfinding though. the AI will start stuttering while it’s trying to chase the player. I’ve tried to draw the paths and… the waypoints are a LOT. here’s a video:
the AI walks normally if it’s wandering, but goes crazy while chasing. so I have no idea what’s the issue. here’s the code:
local function findNearestTarget()
local nearestMagnitude = math.huge
local nearestTarget
for i, plr in pairs(game:GetService("Players"):GetPlayers()) do
if plr.Character then
local char = plr.Character
local targetHum = char:WaitForChild("Humanoid")
if (char.HumanoidRootPart.Position - hrp.Position).Magnitude < dist.Value then
if targetHum.Health > 0 and nearestMag >= (char.HumanoidRootPart.Position - hrp.Position).Magnitude then
nearestMag = (char.HumanoidRootPart.Position - hrp.Position).Magnitude
nearestTarget = char
print("found target")
end
end
end
end
return nearestTarget
end
local function followTarget(target)
local path = pf:CreatePath()
path:ComputeAsync(hrp.Position, target.HumanoidRootPart.Position)
local waypoint = path:GetWaypoints()
for i, v in pairs(waypoint) do
if waypoint.Action == Enum.PathWaypointAction.Jump then
hum:ChangeState(Enum.HumanoidStateType.Jumping)
end
local part = drawPath(v)
if sGoingToCave.Value or not chasing or sChasing.Value == false then part:Destroy() break end
hum:MoveTo(v.Position)
hum.MoveToFinished:Wait()
part:Destroy()
end
end
while true do
game:GetService("RunService").Heartbeat:Wait()
local target = findNearestTarget()
if target then
sChasing.Value = true
if not chasing then chasing = true
if not screamCD then screamCD = true
scream("Found")
coroutine.wrap(function()
task.wait(2)
screamCD = false
end)()
end
else
if not blinded.Value then
hum.WalkSpeed = runSpeed.Value
else
hum.WalkSpeed = 0
end
end
local ray = Ray.new(hrp.Position, (target.HumanoidRootPart.Position - hrp.Position).Unit * 500)
local hit, pos = workspace:FindPartOnRayWithIgnoreList(ray, {rake})
coroutine.wrap(function()
if (target.HumanoidRootPart.Position - hrp.Position).Magnitude < 7 then
if not attackCD and not blinded.Value then attackCD = true
attackTarget(target)
end
end
end)()
coroutine.wrap(function()
if hit then
if hit:IsDescendantOf(target) then
followTarget(target)
end
end
end)()
end
end
From reading the code I personally cannot see an extremely obvious issue, perhaps make sure the AI is not trying to wander while also chasing a player.
Generally speaking pathfinding is expensive, so if the AI has: a clear line of sight, is close by to the target, and is at a similar height to the target, I wouldn’t bother pathfinding and simply have it walk directly towards the target.
Also there is no need to have a custom function to draw your AI’s path, as I believe there is an inhouse option for this somewhere in the studios rendering settings.
yes, I’ve done that. I stopped the loop when the AI is chasing. I may be doing it wrong but here’s what I did:
if path.Status == Enum.PathStatus.Success then
for i, v in pairs(waypoints) do
if v.Action == Enum.PathWaypointAction.Jump then
hum:ChangeState(Enum.HumanoidStateType.Jumping)
end
local part = drawPath(v)
if sGoingToCave.Value
or chasing
or sChasing.Value == true
or findNearestTarget() then part:Destroy() break
end
hum:MoveTo(v.Position)
hum.MoveToFinished:Wait()
part:Destroy()
end
end
the reason why I used pathfinding is to make the AI jump when required. I don’t think I can make it jump if I just make it walk directly towards the player, but I might be wrong
oh really? I didn’t know that. May I know where that setting is? I can’t seem to find it.
It looks like your while loop is continually adding more paths for the npc to follow without canceling the previous order. Resulting in it trying to follow multiple paths at once.
found the solution, I just have to remove the coroutine.wrap() and it fixes the issue. I also removed hum.MoveToFinished:Wait() inside followTarget() function and everything works as expected. Thank you all for the help!
