void setup(){
  size(1000, 1000);
  background(255, 255, 255);
  println("This is in the setup function!");
  fill(180, 0, 0);
}

float x = 200, y = 0;
float vx = 0, vy = 0;
float ax = 0, ay = 0;
float gravity = 1;
Boolean ball_color = true;
void draw(){
    ax = (mouseX - x) * 0.005;
    ay = (mouseY - y) * 0.005 + gravity;
    background(255, 255, 255);
    if (ball_color){
      fill(180, 0, 0);
    } else {
      fill(0, 200, 0);
    }
    line(x, y, mouseX, mouseY);
    ellipse(x, y, 100, 100);
    x += vx;
    y += vy;
    vx += ax;
    vy += ay;
    vx *= 0.99;
    vy *= 0.99;
    if(y > 950){
       vy = -vy * .85;
       y = 950;
    }
}

void mouseClicked(){
    y = mouseY;
    x = mouseX;
    vx = 0;
    vy = 0;
    println("Somebody clicked the mouse at " + mouseX + "," + mouseY);
}

void keyPressed(){
   if(key == 't'){
       ball_color = !ball_color;
   }
}