float blobRed = 80;
float blobGreen = 80;
float blobBlue = 240;
float blobSizeX = 64;
float blobSizeY = 64;

float blobGrowthX = 5;
float blobGrowthY = 6;

float backgroundColor = 255;

void setup() {
  size(320, 320);
  frameRate(30);
}

void draw() {
  background(backgroundColor);
  fill(blobRed, blobGreen, blobBlue);
  noStroke();
  ellipse(width/2, height/2, blobSizeX, blobSizeY);
  
  blobSizeX = blobSizeX + blobGrowthX;
  blobSizeY = blobSizeY + blobGrowthY;
  
  if (blobSizeX > 290 || blobSizeX <= 0) {
    blobGrowthX = blobGrowthX * -1;
  }
  
  if (blobSizeY > 290 || blobSizeY <= 0) {
    blobGrowthY = blobGrowthY * -1;
  }

  
}

void mousePressed() {
  blobRed = 240;
  blobGreen = 64;
  blobBlue = 64;
}

void keyPressed() {
  println("blobSizeX = " + blobSizeX);
  println("blobSizeY = " + blobSizeY);
}