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Chapter 7 — Making RoombaView 133
FIGURE 7-2: Processing on Windows
How Processing Works
Processing is implemented in Java. The simple commands that are part of the sketch are actu-
ally method names and variables of the Java class within which sketches run. The Processing
language is really no different from Java at all; it just removes the visible overhead and com-
plexity from Java.
So Processing is a Java IDE of sorts, albeit a simplified and specialized one. It enables you to
write quick graphical code sketches that respond to user input. For example, Listing 7-1 is the
entire code for a Processing sketch that creates a window, paints it gray, and then draws a blue
box that follows the user’s mouse.
Listing 7-1: Example Processing Sketch
void setup() {
size(300,300);
framerate(15);
}
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