Exercise 1.B Exercise 1.C Exercise 2.B Exercise 2.C Exercise 3.B Exercise 3.C Exercise 4.B Exercise 4.C Project 1 Project 2 Project 3 Project 4 Template Lenny Alex Ed Shao Tammy Henry Leon J.J. Wendi Guthrie Peter Richard Keith Daniel Carly Paula Becca Muskan Scott Olivia Scott

//exercise 2b
//move mouse horizontally to change the color of the background

float angle = 0.0; 
float offset = 0.0; 

int num = 20; 
 
Ball[] balls = new Ball[num]; 
 
void setup() 
{ 
  size(300, 300); 
  colorMode(RGB, 255, 255, 255, 100);
  noStroke(); 
  angleMode(DEGREES);
  ellipseMode(CENTER);
  smooth();
  framerate(60); 
 
  for(int i=0; i<num; i++) 
  { 
    color tempcolor = color(random(255), random(255), random(255), random(50, 100));
    balls[i] = new Ball(tempcolor, random(-300, 0), random(275, 300), random(15, 50), random(7.5, 10)); 
  } 
} 
 
void draw() 
{ 
  background(mouseX*0.95);
  
  for(int i=0; i<num; i++) 
  { 
    balls[i].update(); 
    balls[i].display(); 
  } 
} 
 
class Ball
{ 
  color c;
  float xpos, ybounce, bsize, speed; 

  Ball(color c_, float x, float y, float ballsize, float speedi) 
  { 
    c=c_;
    xpos = x; 
    ybounce = y; 
    bsize = ballsize; 
    speed = speedi;
  } 
  
  void display() 
  { 
    float sinval =abs(sin(angle));
    fill(c);
    ellipse(xpos, 300 + (sinval * -ybounce-(bsize/2)), bsize, bsize);
    angle=angle+speed;
    xpos++;
    ybounce--;
  } 
       
  void update() 
  { 
    if (xpos>300)
    {
      xpos=0;
      ybounce=random(0, 300);
    }
    if(ybounce<0)
    {
      ybounce=0;
    }
  } 
} 
 

Exercise 4.B: Dot
Write your own unique Dot class which has a different behavior than the one presented in the example. Design a kinetic composition with 20 of your Dots.