├── README.md
├── circles_intersect_noise.pde
├── Timer.pde
└── Ball.pde


/README.md:
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1 | # circles-intersect-noise
2 | Intersecting circles that produce noise and colors.
3 | 


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/circles_intersect_noise.pde:
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 1 | import processing.sound.*;
 2 | Ball ball1;
 3 | Ball ball2;
 4 | Timer timer;
 5 | WhiteNoise noise;
 6 | 
 7 | void setup() {
 8 |   size(400, 300);
 9 |   background(random(155, 255), random(155, 255), random(155, 255));
10 |   noise = new WhiteNoise(this);
11 |   ball1 = new Ball(100, 100, 50, 1, 1);
12 |   ball2 = new Ball(250, 150, 50, -1, -2);
13 |   timer = new Timer(2000);
14 |   timer.start();
15 | }
16 | 
17 | void draw() {
18 |   if (timer.isFinished()) {
19 |     background(random(155, 255), random(155, 255), random(155, 255));
20 |     timer.start();
21 |   }
22 | 
23 |   ball1.display();
24 |   ball1.move();
25 |   ball1.intersect(ball2);
26 |   ball2.display();
27 |   ball2.move();
28 | }
29 | 


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/Timer.pde:
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 1 | class Timer {
 2 | 
 3 |   int savedTime; // When Timer started
 4 |   int totalTime; // How long Timer should last
 5 | 
 6 |   Timer(int tempTotalTime) {
 7 |     totalTime = tempTotalTime;
 8 |   }
 9 | 
10 |   // Starting the timer
11 |   void start() {
12 |     // When the timer starts it stores the current time in milliseconds.
13 |     savedTime = millis();
14 |   }
15 | 
16 |   // The function isFinished() returns true if 5,000 ms have passed.
17 |   // The work of the timer is farmed out to this method.
18 |   boolean isFinished() {
19 |     // Check how much time has passed
20 |     int passedTime = millis() - savedTime;
21 |     if (passedTime > totalTime) {
22 |       return true;
23 |     } else {
24 |       return false;
25 |     }
26 |   }
27 | }
28 | 


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/Ball.pde:
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 1 | class Ball {
 2 |   float x;
 3 |   float y;
 4 |   float r;
 5 |   float speedX;
 6 |   float speedY;
 7 | 
 8 |   Ball (float x_, float y_, float r_, float speedX_, float speedY_) {
 9 |     x = x_;
10 |     y = y_;
11 |     r = r_;
12 |     speedX = speedX_;
13 |     speedY = speedY_;
14 |   }
15 | 
16 |   void display() {
17 |     ellipseMode(CENTER);
18 |     noStroke();
19 |     ellipse(x, y, 2*r, 2*r);
20 |   }
21 | 
22 |   void move() {
23 |     x += speedX;
24 |     y += speedY;
25 | 
26 |     if (x == 0 + r || x == width - r) {
27 |       speedX *= -1;
28 |     }
29 |     if (y == 0 + r || y == height - r) {
30 |       speedY *= -1;
31 |     }
32 |   }
33 | 
34 |   void intersect(Ball b) {
35 |     if (dist(x, y, b.x, b.y) < r + b.r) {
36 |       fill(random(155, 255), random(155, 255), random(155, 255));
37 |       noise.play();
38 |     } else {
39 |       fill(255);
40 |       noise.stop();
41 |     }
42 |   }
43 | }
44 | 


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