Code that responds to input from the mouse, keyboard, and other devices depends on the program to run continuously. We first encountered the
draw() functions in Chapter 1. Now we will learn more about what they do and how to use them to react to input to the program.
The code within the
draw() block runs from top to bottom, then repeats until you quit the program by closing the window. Each trip through
draw() is called a frame. (The default frame rate is 60 frames per second, but this can be changed.)
To see how
draw() works, run this example:
// Displays the frame count to the console
You’ll see ...