Learning Processing: A Beginner's Guide to Programming Images ...

18.4
diameter = diameter_;
}
// True or False if point is inside circle
boolean rollover(int mx, int my) {
if (dist(mx,my,x,y) < diameter/2) {
return true;
} else {
return false;
}
}
// Change Bubble variables
void change() {
r = constrain(r + random(–10,10),0,255);
g = constrain(g + random(–10,10),0,255);
diameter = constrain(diameter + random(–2,4),4,72);
}
// Display Bubble
void display() {
stroke(0);
fill(r,g,255,150);
ellipse(x,y,diameter,diameter);
}
// Bubble drifts upwards
void drift() {
y + = random(–3,–0.1);
x + = random(–1,1);
if (y < -diameter*2) {
y = height + diameter*2;
}
}
}
Text Parsing
Data Input 335
Exercise 18-7: Create a sketch that visualizes the following data. Feel free to add to and
change the text.
Now that we are comfortable with how loadStrings( ) works for text fi les stored locally, we can start to
examine what we might do with textual data we retrieve from other sources such as a URL.
String[] lines = loadStrings( " http://www.yahoo.com " );