Problem with Build System

Help and Feedback Scripting Support
1

Hello, I have a problem with the build system and I would like to ask for help. You can see my problem below:

As you can see in the gif, when I move the cursor towards the wall, part goes through wall, and I don’t know what to do with it.
I can assume it can be done with raycasting, but I have no idea how to do it.

My script:

local Player = game.Players.LocalPlayer
local Mouse = Player:GetMouse()
equipped = false

script.Parent.Equipped:Connect(function()
	equipped = true
	local Block = game.ReplicatedStorage.Block:Clone()
	Block.Parent = workspace
	Mouse.TargetFilter = Block.Root
	while true do
		wait()
		if equipped == true and Block.Root then
			local NewPos = Vector3.new(math.floor(Mouse.Hit.X + .5), math.floor(Mouse.Hit.Y + 1.5), math.floor(Mouse.Hit.Z + .5))
			if NewPos then
				game:GetService("TweenService"):Create(Block.Root, TweenInfo.new(0.1), {CFrame = CFrame.new(NewPos)}):Play()
			end
		else
			Block:Destroy()
		end
	end
end)
script.Parent.Unequipped:Connect(function()
	equipped = false
end)

(I removed unnecessary parts from script and left only the necessary)

Also, here are a few words about the script:

  • This is a LocalScript
  • LocalScript Parent - tool.
  • The ReplicatedStorage contains a Model, named Block, Model contains a Part, named Root.

Thank you in advance!