Scale parts when mouse is moved?

[ChainsawRBLX (Chain)]

Hi, so basically my question is how does bloxburg sizes parts when the mouse is moved? I made a topic like 15-16 hours ago but that wasn’t clear, and now there are no people replying. I am hoping for help! Please Here’s the video of how it works now:
robloxapp-20201002-0306308.wmv (583.5 KB)
It’s scaling on both sides, if you see in the studio when you scale a part while holding shift, it’s scaling on both sides and I don’t want that

[ComplexMetatable]

What are you trying to achieve? Can you send a video from how it looks on Bloxburg.

[ChainsawRBLX (Chain)]

Ok hold on, let me tell you what I am looking for, not exactly like bloxburg, but here’s a topic, see the vid:

How would I create a wall system like this?

I recently came across a post by @Imaginze which showcased an amazing building system with a unique wall system that I haven’t seen in many games on Roblox. Currently I have a simple placement system that allows the user to place models but all it does it calculate the position based on the mouse and move the model to that position until it’s ready to be placed there forever. [image] Can someone point my in the right direction as to how I can achieve this wall system?

[fstnando77]

Hello, this is my first approach:

Put in localscript in StarterPlayer => StarterCharacterScripts

local player = game.Players.LocalPlayer 
local mouse = player:GetMouse() 
local camera = workspace.CurrentCamera
local RunService = game:GetService("RunService") --we will use this service for something later
local target 
local down
local wall = Instance.new('Part', game.Workspace)
wall.Material = Enum.Material.Brick
wall.Anchored = true
local s = Instance.new('Part', game.Workspace)
s.Shape = Enum.PartType.Ball
s.Transparency = 0.5
s.Color = Color3.new(1, 0, 0)
s.Anchored = true
s.CanCollide = false
local startPosition
local endPosition


mouse.Button1Down:connect(function() 
	if mouse.Target ~= nil then
		target = mouse.Target 
		mouse.TargetFilter = target 
		down = true 
	end
end)

game:GetService("RunService").RenderStepped:Connect(function() --replaced the move event with renderstepped because it works better in some cases, renderstepped is an event that fires every frame, basically super fast, look it up it is important!
	s.Position = mouse.Hit.Position 
	if down == true and target ~= nil then
		if not startPosition then
			startPosition = mouse.Hit.Position
		end
		endPosition = mouse.Hit.Position
		wall.CFrame = CFrame.new(startPosition, endPosition)
		wall.Position = (startPosition + endPosition) / 2 + Vector3.new(0, 2, 0)
		local diff = endPosition - startPosition
		wall.Size = Vector3.new(0.1, 4, math.sqrt(math.pow(diff.X, 2) + math.pow(diff.Z, 2)))
	end 
end) 

mouse.Button1Up:connect(function()
	startPosition = nil
	down = false
	mouse.TargetFilter = nil
	target = nil 
end)

[fstnando77]

Ok, this is better:

local player = game.Players.LocalPlayer 
local workspaceService = game:GetService("Workspace")
local RunService = game:GetService("RunService")
local userInputService = game:GetService("UserInputService")
local mouse = player:GetMouse() 
local camera = workspace.CurrentCamera
local target 
local down
local wall = Instance.new('Part', game.Workspace)
wall.Material = Enum.Material.Brick
wall.Anchored = true
local startPosition
local endPosition

local function getMouseHit(ignoreList)
	local mouseLocation = userInputService:GetMouseLocation()
	local viewportPointRay = camera:ViewportPointToRay(mouseLocation.X, mouseLocation.Y)
	local extendedRay = Ray.new(viewportPointRay.Origin, viewportPointRay.Direction * 1000)
	
	return workspaceService:FindPartOnRayWithIgnoreList(extendedRay, ignoreList)
end

mouse.Button1Down:connect(function() 
	if mouse.Target ~= nil then
		target = mouse.Target 
		mouse.TargetFilter = target 
		down = true 
	end
end)

game:GetService("RunService").RenderStepped:Connect(function() --replaced the move event with renderstepped because it works better in some cases, renderstepped is an event that fires every frame, basically super fast, look it up it is important!
	if down == true and target ~= nil then
		local _, p = getMouseHit({wall})		
		if not startPosition then
			startPosition = p
		end
		endPosition = p
		wall.CFrame = CFrame.new(startPosition, endPosition)
		wall.Position = (startPosition + endPosition) / 2 + Vector3.new(0, 2, 0)
		local diff = endPosition - startPosition
		wall.Size = Vector3.new(0.1, 4, math.sqrt(math.pow(diff.X, 2) + math.pow(diff.Z, 2)))
	end 
end) 

mouse.Button1Up:connect(function()
	local new_wall = wall:Clone()
	new_wall.Parent = wall.Parent
	startPosition = nil
	down = false
	mouse.TargetFilter = nil
	target = nil 
end)

[fstnando77]

Sorry “FindPartOnRayWithIgnoreList” is deprecated. You can use “Raycast”. I have add a red ball for mark.

local player = game.Players.LocalPlayer 
local workspaceService = game:GetService("Workspace")
local RunService = game:GetService("RunService")
local userInputService = game:GetService("UserInputService")
local mouse = player:GetMouse() 
local camera = workspace.CurrentCamera
local target 
local down
local wall = Instance.new('Part', game.Workspace)
wall.Material = Enum.Material.Brick
wall.Anchored = true
local startPosition
local endPosition
local s = Instance.new('Part', game.Workspace)
s.Shape = Enum.PartType.Ball
s.Material = Enum.Material.SmoothPlastic
s.Color = Color3.new(1, 0, 0)
s.Transparency = 0.5
s.Size = Vector3.new(0.5, 0.5, 0.5)

-- for intercept the baseplate
local raycastParams = RaycastParams.new()
raycastParams.FilterType = Enum.RaycastFilterType.Whitelist
raycastParams.FilterDescendantsInstances = {workspace.Baseplate}
raycastParams.IgnoreWater = true	

-- Grid size 
local grid = 4

function round(x, n)
	n = math.pow(10, n or 0)
	x = x * n
	if x >= 0 then x = math.floor(x + 0.5) else x = math.ceil(x - 0.5) end
	return x / n
end


function calculate_position(pos, grid)
	return Vector3.new(round(pos.X  / grid, 0) * grid, pos.Y, round(pos.Z  / grid, 0) * grid)
end

local function getMouseHit()
	-- Calculate the position of intercept with baseplate
	local mouseLocation = userInputService:GetMouseLocation()
	local viewportPointRay = camera:ViewportPointToRay(mouseLocation.X, mouseLocation.Y)
	local raycastResult = workspace:Raycast(viewportPointRay.Origin, viewportPointRay.Direction * 1000, raycastParams)
	local position = Vector3.new(0,0,0)
	if raycastResult then
		position = raycastResult.Position 
	end
	return position
end

mouse.Button1Down:connect(function() 
	if mouse.Target ~= nil then
		target = mouse.Target 
		mouse.TargetFilter = target 
		down = true 
	end
end)

game:GetService("RunService").RenderStepped:Connect(function() --replaced the move event with renderstepped because it works better in some cases, renderstepped is an event that fires every frame, basically super fast, look it up it is important!
	local p = getMouseHit()
	p = calculate_position(p, grid)
	s.Position = p
	if down == true and target ~= nil then
		if not startPosition then
			startPosition = p
		end
		endPosition = p
		wall.CFrame = CFrame.new(startPosition, endPosition)
		wall.Position = (startPosition + endPosition) / 2 + Vector3.new(0, 3, 0)
		local diff = endPosition - startPosition
		wall.Size = Vector3.new(0.5, 6, math.sqrt(math.pow(diff.X, 2) + math.pow(diff.Z, 2)))
	end 
end) 

mouse.Button1Up:connect(function()
	local new_wall = wall:Clone()
	new_wall.Parent = wall.Parent
	startPosition = nil
	down = false
	mouse.TargetFilter = nil
	target = nil 
end)