Monocle is a way to easily watch things while you play your game. It's easy to implement, and easy to understand. The setup of a basic main.lua file is as follows:
require 'monocle/monocle'
Monocle.new({})
-- The most basic way to watch any expression or variable:
Monocle.watch("FPS", function() return math.floor(1/love.timer.getDelta()) end)
function love.update(dt)
Monocle.update()
end
function love.draw()
Monocle.draw()
end
function love.textinput(t)
Monocle.textinput(t)
end
function love.keypressed(text)
Monocle.keypressed(text)
end
Easy as that! When the game is run, what you're watching will show up in the top right of the screen.
For more information on how to use Monocle, as well as the official Love2D forum post, look here.