fpia

BouncyBallOOP/Ball.pde

@@ -8,13 +8,55 @@ class Ball {
   Ball() {
     diam = 200;
     loc = new PVector(random(diam, width-diam), random(diam, height-diam));
+    vel = PVector.random2D();
+    vel.mult(20);
+    c = color(random(255), random(50), random(100, 255));
+  }
+
+  Ball(int tDiam) {
+    diam = tDiam;
+    loc = new PVector(random(diam, width-diam), random(diam, height-diam));
+    vel = PVector.random2D();
+    vel.mult(10);
     c = color(random(255), random(50), random(100, 255));
   }
 
+  Ball(float tX, float tY) {
+    diam = 50;
+    loc = new PVector(tX, tY);
+    vel = PVector.random2D();
+    vel.mult(30);
+    c = color(0, 255, 0);
+  }
+  Ball(float tX, float tY, int tDiam) {
+   diam = tDiam;
+   loc = new PVector(tX, tY);
+   vel = PVector.random2D();
+   vel.mult(5);
+   c = color( 255, 0 ,45);
+  }
+
 //after declaring fields and setting up constructors, you can define your methods
   void display() {
     fill(c);
     noStroke();
     ellipse(loc.x, loc.y, diam, diam);
   }
+  void move() {loc.add(vel);
+}
+
+  void bounce() {
+    if (loc.x >= width){
+      vel.x *= -1;
+    }
+    if (loc.x <= 0){ 
+      vel.x *= -1;
+    }
+    if (loc.y >= height){
+      vel.y *= -1;
+    }
+    if (loc.y <= 0){ 
+      vel.y *= -1;
+    }
+  }
 }

BouncyBallOOP/BouncyBallOOP.pde

@@ -1,11 +1,24 @@
 Ball b;                //declare a new ball called b
-
+Ball c;
+Ball d;
 void setup() {
   size(1600, 1200);
   b = new Ball();      //initialize b as a new object of the Ball class
+  c = new Ball();
+  d = new Ball(25, 13, 14);
 }
 
+
 void draw() {
   background(0);
   b.display();         //call b's display() method
+  c.display();
+  d.display();
+  b.move();
+ c.move();
+ d.move();
+ d.bounce();
+ b.bounce();
+ c.bounce();
+
 }