Processing: Creative Coding and Computational Art

PROCESSING: CREATIVE CODING AND COMPUTATIONAL ART
606
directly within the code as comments. I recommend running the example first before
going through the code. Happy motion painting!
/* Motion Painter
Ira Greenberg, April 17, 2006 */
/* Begin declaring global variables above
the setup() function. */
int points = 5;
/*parentNode[] array holds x and y position of
center of moving brush shape.*/
float[]parentNode = new float[2];
/*shape[][] 2-dimensional array holds x and y position
of up to 8 points making up the vertices of each
brush shape. Each brush shape can have a minimum
of 2 points or a maximum of 8 points.*/
float[][]shape = new float[8][2];
float shapeRadius = 10.0;
float strokeAlpha = 255;
float speed = 2;
float rotation = 15;
float rotationSpeed = 4;
float xSpeed = 0.0;
float ySpeed = 0.0;
byte xDirection = 1;
byte yDirection = 1;
float strokeWt = 1;
/*strokeColor[][] 2-dimensional array holds
color values for each edge of the brush shapes.*/
float[][]strokeColor = new float[8][3];
boolean isWallSolid = true;
int canvasWidth;
int canvasHeight;
PFont font;
void setup(){
size(600, 400);
canvasWidth = width;
canvasHeight = height-100;
background(255);
smooth();
frameRate(30);
/*Initialize parentNode to center of canvas, which