How can I make handles resize a part?

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#1

I adorneed handles to a part then put the handles in starter GUI. I want to know how to actually make the handles resize or move the part it is adorneed to.

This seems like a very unpopular topic so I couldn’t find the answer by googling it.

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#2

Went into studio to try and make something for this and here’s how you can resize an even amount alongside an axis:

local handles = script.Parent
local deltaSum = 0

-- Reset the resize value once the mouse is back up
handles.MouseButton1Up:Connect(function()
	deltaSum = 0
end)

handles.MouseDrag:Connect(function(normalId, delta)
	-- The newDelta is the current delta - the previous delta if the current delta is positive or
	-- the current delta + the previous delta if the current delta is negative
	local newDelta = (delta > 0 and (delta - deltaSum) or (delta + deltaSum))
	
	-- Create a Vector3 on the respective axis
	local vector = Vector3.new()
	if (normalId == Enum.NormalId.Top or normalId == Enum.NormalId.Bottom) then
		-- I found 2 to be a nice resize factor
		vector = Vector3.new(0, newDelta * 2, 0)
	-- Just repeat for the left & right axis and the front & back axis
	end
	
	-- Apply the change to deltaSum
	deltaSum += newDelta
	
	-- Apply the change to the actual adornee
	handles.Adornee.Size += vector
end)
#3

Sorry, I tried that and it didn’t work, but it didn’t return any errors. I used a local script inside of the handles for it.

Edit: Oh nevermind it did work, but only for the top and bottom part. Also it is very glitchy and buggy, I think it needs a different script.

#4

What do you mean by glitchy and buggy?

#5

I have an old script that… might work. You could try it out.

local handle = script.Parent
local oldDelta = 0
local snap = 2
local smallestSize = 1

local surfaceAxis = {
	[Enum.NormalId.Top] = 'Y',
	[Enum.NormalId.Bottom] = 'Y',
	[Enum.NormalId.Front] = 'Z',
	[Enum.NormalId.Back] = 'Z',
	[Enum.NormalId.Left] = 'X',
	[Enum.NormalId.Right] = 'X'
}

handle.MouseDrag:Connect(function(normal, distance)
	local delta = distance - oldDelta
	
	if math.abs(delta * 1.1) >= snap then
		delta = math.round(delta / snap) * snap
		
		if handle.Adornee.Size[surfaceAxis[normal]] + delta > smallestSize and handle.Adornee:Resize(normal, delta) then
			oldDelta = distance
		end
	end
end)
1 Like
#6

It moved the top and bottom at the same time, also it kept getting super thing and super large constantly.

#7

Notice: The script uses Roblox’s :Resize() function. This means that it can’t go through parts so it could get caught on small parts.

I’m guessing the best way to fix that is this:

local handle = script.Parent
local oldDelta = 0
local snap = 2
local smallestSize = 1

local surfaceAxis = {
	[Enum.NormalId.Top] = 'Y',
	[Enum.NormalId.Bottom] = 'Y',
	[Enum.NormalId.Front] = 'Z',
	[Enum.NormalId.Back] = 'Z',
	[Enum.NormalId.Left] = 'X',
	[Enum.NormalId.Right] = 'X'
}

handle.MouseDrag:Connect(function(normal, distance)
	local delta = distance - oldDelta
	
	if math.abs(delta * 1.1) >= snap then
		delta = math.round(delta / snap) * snap
		local endSize = handle.Adornee.Size[surfaceAxis[normal]] + delta
		
		if endSize > smallestSize then
			handle.Adornee.Size = endSize
			oldDelta = distance
		end
	end
end)
#8

One weird thing about the script you used, is whenever I click on a handle it resets the size back to normal

#9

That returned error: Players.RichPerson03return.PlayerGui.Handles.LocalScript:23: invalid argument #3 (Vector3 expected, got number)

Edit: vector3 has 3 number values in it, so I guess you gotta detect which axis to resize

#10

So, how did you set your handles up? I can’t seem to figure out how to test the script that I made (lol) Found out.
Anywho, to fix that you should use (pending)

#11

I tried using this:

local handle = script.Parent
local oldDelta = 0
local snap = 2
local smallestSize = 1

local surfaceAxis = {
	[Enum.NormalId.Top] = 'Y',
	[Enum.NormalId.Bottom] = 'Y',
	[Enum.NormalId.Front] = 'Z',
	[Enum.NormalId.Back] = 'Z',
	[Enum.NormalId.Left] = 'X',
	[Enum.NormalId.Right] = 'X'
}

handle.MouseDrag:Connect(function(normal, distance)
	local delta = distance - oldDelta

	if math.abs(delta * 1.1) >= snap then
		delta = math.round(delta / snap) * snap
		local endSize = handle.Adornee.Size[surfaceAxis[normal]] + delta
		
		if endSize > smallestSize then
			if normal == Enum.NormalId.Front or Enum.NormalId.Back then
				handle.Adornee.Size = Vector3.new(delta,delta,endSize)
			elseif normal == Enum.NormalId.Left or Enum.NormalId.Right then
				handle.Adornee.Size = Vector3.new(endSize,delta,delta)
			elseif normal == Enum.NormalId.Top or Enum.NormalId.Bottom then
				handle.Adornee.Size = Vector3.new(delta,endSize,delta)
			end
			oldDelta = distance
		end
	end
end)

But then it didn’t do anything.

Edit: It did do something. I just had the script disabled bruh. It had weird results though.
robloxapp-20210822-0008582.wmv (1.2 MB)

Edit I fixed the script kinda using this:

if endSize > smallestSize then
			if normal == Enum.NormalId.Front or Enum.NormalId.Back then
				handle.Adornee.Size = Vector3.new(handle.Adornee.Size.X,handle.Adornee.Size.Y,endSize)
			elseif normal == Enum.NormalId.Left or Enum.NormalId.Right then
				handle.Adornee.Size = Vector3.new(endSize,handle.Adornee.Size.Y,handle.Adornee.Size.Z)
			elseif normal == Enum.NormalId.Top or Enum.NormalId.Bottom then
				handle.Adornee.Size = Vector3.new(handle.Adornee.Size.X,endSize,handle.Adornee.Size.Z)
			end
			oldDelta = distance
		end

It still acted weird though

#12

Solved it:

local handle = script.Parent
handle.Adornee = workspace.Part
local oldDelta = 0
local snap = 2
local smallestSize = 1

local surfaceAxis = {
	[Enum.NormalId.Top] = 'Y',
	[Enum.NormalId.Bottom] = 'Y',
	[Enum.NormalId.Front] = 'Z',
	[Enum.NormalId.Back] = 'Z',
	[Enum.NormalId.Left] = 'X',
	[Enum.NormalId.Right] = 'X'
}

handle.MouseDrag:Connect(function(face, distance)
	local delta = distance - oldDelta
	
	if math.abs(delta * 1.125) >= snap then
		delta = math.round(delta / snap) * snap
		
		local direction = Vector3.fromNormalId(face)
		local size = Vector3.new(math.abs(direction.X), math.abs(direction.Y), math.abs(direction.Z))
		local endSize = handle.Adornee.Size + size * delta
		
		if endSize[surfaceAxis[face]] > smallestSize then
			handle.Adornee.Size = endSize
			handle.Adornee:PivotTo(handle.Adornee.CFrame * CFrame.new(direction / 2 * delta))
			oldDelta = distance
		end
	end
end)

handle.MouseButton1Up:Connect(function()
	oldDelta = 0
end)
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