I was overjoyed to find a clean approach to a pause function
in the Breakout game code. My clumsy attempt to define one
in the Flappy Bird assignment left me forced to test for pause
in the update function. The right way to do it - entirely in the
PlayState update - kicks off with paused as true, otherwise return.
Moreover, I had to use 'enter' to go back to the game. Here, a new
tap on 'space' does the trick.
Neat!
* * *
The love2d entry on local function is also worth reading. Comes down
to the fact that global functions are stored in a table while local ones
are in the stack.
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