Code that responds to input from the mouse, keyboard, and other devices has to run continuously. To make this happen, place the lines that update inside a Processing function called
The code within the
draw() block runs from top to bottom, then repeats until you quit the program by clicking the Stop button or 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 the following:
I'm drawing 1 I'm drawing 2 I'm drawing 3 ... ...