How could a script check if a part is not a part of a vehicle anymore?

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,
#1

I have a script almost working, but it doesn’t work while the vehicle is on the ground.
script: (in every block, it is also very laggy)

local ispes = false

function pes()
local g = script.Parent:GetChildren()
for i = 1, #g do
local touch = script.Parent.PrimaryPart.Touched:Connect(function() end)
local touching = script.Parent.PrimaryPart:GetTouchingParts()
if g[i]:IsA("WeldConstraint") then
	for i = 1, #touching do
		if (touching[i]:IsA("VehicleSeat") or touching[i].Parent:IsA("VehicleSeat")) and not touching[i]:IsDescendantOf(workspace.Bases) then
			script.Parent.IsSeat.Value = touching[i].Parent.Name
			ispes = false
		elseif not touching[i]:IsDescendantOf(script.Parent) and touching[i]:IsDescendantOf(workspace.PlacedObjects) and ispes == false then
			script.Parent.IsSeat.Value = touching[i].Parent.Parent.IsSeat.Value
		elseif touching[i].Name == "Terrain" and not touching[i]:IsDescendantOf(workspace.PlacedObjects) then
			script.Parent.IsSeat.Value = ""
			ispes = true 
		elseif (touching[i]:IsDescendantOf(workspace.PlacedObjects) and touching[i].Parent.Parent.IsSeat.Value == "") and ispes == true then
			script.Parent.IsSeat.Value = ""
		end
		end
	end
	if script.Parent.IsSeat.Value == "" and script.Parent:IsDescendantOf(workspace.PlacedObjects) then
		script.Parent.Parent = workspace.PlacedObjects
	else
		script.Parent.Parent = workspace.PlacedObjects[script.Parent.IsSeat.Value]
	end
	end
end

game:GetService("RunService").Heartbeat:Connect(pes)

the IsSeat Value is the seat that the blocks are attached to


at 0:22 i was un-anchoring the seat
at the end of it some blocks go outside the seat and the IsSeat value is set to nil.

1 Like
#2

If all of the vehicle’s parts is in a model, you could probably use :GetDescendants() and iterate through it comparing the current part in the iteration with the part you’re trying to find.

#3

If you are looking at the Parent/Ancestor, you can use FindFirstChild with the second parameter(recursive) to true

local someModel = vehicle:FindFirstChild("someName", true)
if someModel then
	...
end

If you are looking at the descendant, then just use FindFirstAncestor

local vehicle = somePart:FindFirstAncestor("someName")
if vehicle then
	...
end
#4

ok. I worded the title wrong. But thanks for letting me know how to see if something is a part of something!

actuall problem:


I got a working system on if the blocks are a part of the vehicle. I dont know how to make the script know if it is not part of the vehicle anymore. Like, i move a block that is on the vehicle and the other blocks attached too it fall, but then it sees that it is touching the terrain and doesnt make it a part of the vehicle any more. But this is a problem because when i drive the vehicle, it thinks the parts are not part of the vehicle anymore.

#5

I think you’re looking for the DescendantAdded and DescendantRemoving events, to see when a descendant has been added or removed

#6

As he said, you can use those and to check if something is a descendant of a part by using :IsDescendantOf(part)
Hope this helped!

#7

but when the part is detached, its still in the seat.
I need something to detect that it isnt part of it any more.

#8

if part.Parent ~= otherPart then

#9

wait hold on, can you send a better explanation of what you mean again?

#10

like when I move one block, some others fall and those blocks still think they are part of the vehicle when they are not.

#11

If there are joints connected, then, you could disconnect the joint (by making it’s Part0/Part1 nil), and check that

#12

each block is welded by a weld constraint.

#13

try to use part:GetTouchingParts()

#14

Then there is your answer (unless you can’t change the Part0/Part1)

#15

Capture_2020_04_06_18_29_17_506
Capture_2020_04_06_18_29_17_5061185×294 431 KB

(the other 2 are just not in the image that are outside the seat)

#16

hm, i’m not quite sure I know a solution for this. try part:GetJoints() or part:GetConnectedParts()

#17

ok. I have never used those so how do i use them?

#18

the wiki definitely will help if anything

#19

part:GetConnectedParts() instead of part:GetTouchingParts() really helped. Thanks!

#20

Sure! Make sure to mark my post as a solution too :smiley: