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

void mousePressed() {
// If the user clicks on the doorbell, play the sound!
if (doorbell.contains(mouseX,mouseY)) {
dingdong.play();
}
}
// Close the sound engine
public void stop() {
Sonia.stop();
super.stop();
}
// A Class to describe a "doorbell" (really a button)
class Doorbell {
// Location and size
float x;
float y;
float r;
// Create the doorbell
Doorbell (float x_, float y_, float r_) {
x = x_;
y = y_;
r = r_;
}
// Is a point inside the doorbell (used for mouse rollover, etc.)
boolean contains(float mx, float my) {
if (dist(mx,my,x,y) < r) {
return true;
} else {
return false;
}
}
// Show the doorbell (hardcoded colors, could be improved)
void display(float mx, float my) {
if (contains(mx,my)) {
fill(100);
} else {
fill(175);
}
stroke(0);
ellipse(x,y,r,r);
}
}
Sound 385