Roblox Code for a Building Game (Lua)

-- Function to create a block when the tool is activated
local function createBuildingTool()
    local tool = Instance.new("Tool")
    tool.Name = "BuildingTool"

    local handle = Instance.new("Part")
    handle.Name = "Handle"
    handle.Size = Vector3.new(4, 1, 4)
    handle.Anchored = true
    handle.CanCollide = false
    handle.BrickColor = BrickColor.new("Bright blue")
    handle.Transparency = 0.5
    handle.Parent = tool

    -- Function to place a block when the tool is activated by clicking
    tool.Activated:Connect(function()
        local character = tool.Parent
        local humanoid = character:FindFirstChild("Humanoid")
        if humanoid then
            local mouse = humanoid:GetMouse()
            local hit, position = workspace:FindPartOnRayWithIgnoreList(
                Ray.new(mouse.UnitRay.Origin, mouse.UnitRay.Direction * 100),
                {character, tool}
            )
            if hit and hit:IsA("BasePart") then
                local newBlock = handle:Clone()
                newBlock.Position = position
                newBlock.Parent = workspace
            end
        end
    end)

    -- Function to remove placed blocks when right-clicked
    tool.Equipped:Connect(function()
        local character = tool.Parent
        local humanoid = character:FindFirstChild("Humanoid")
        if humanoid then
            local mouse = humanoid:GetMouse()
            mouse.Button2Down:Connect(function()
                local hit, position = workspace:FindPartOnRayWithIgnoreList(
                    Ray.new(mouse.UnitRay.Origin, mouse.UnitRay.Direction * 100),
                    {character, tool}
                )
                if hit and hit:IsA("Part") then
                    hit:Destroy()
                end
            end)
        end
    end)

    -- Function to drop the tool when unequipped
    tool.Unequipped:Connect(function()
        tool.Parent = game.Players.LocalPlayer.Character
    end)

    tool.Parent = game.Players.LocalPlayer.Backpack
end

-- Call the createBuildingTool function
createBuildingTool()