Game Loop

A freshly created app will not do anything. There are three functions you can define so the app does something visible.

draw()

function draw()
end

This function can be used to draw on the screen, using Nibble's drawing commands.

update(dt)

function update(dt)
end

Update can be used to move things around on the screen, check for pressed buttons or do any work you need which is not drawing to the screen.

Notice the dt parameter, which is the number of seconds since the last update(dt) call.

Since nibble runs locked at 30 FPS, you should expect that to always be close to 1/30s.

init()

function init(dt)
end

This is the least used function, you probably wont use it untill your project is reasonably big.

It is used to initialize values, for example, loading custom assets or preparing algorithms.