Balls with functions and for-loops

int xPos;

int yPos;

​

void setup() {

  size(400, 400);

  xPos = 0;

  yPos = 10;

}

​

void draw() {

  //  background(70, 30, 90);

​

  // if we want to make a trailing line,

  // fill with a rectangle with a transparent color

  // otherwise, just use the background function above

  fill(70, 30, 90, 50);

  rect(0, 0, width, height);

  fill(255);

​

  for (int i = 0; i < 10; i++) {

    drawBall(xPos, yPos + (i*50), 20);

  }

​

  drawBall(xPos, yPos, 20);

  moveBall(3);

  pacManBall();

}

​

// this function takes three arguments, which

// are used to draw an ellipse with a specific

// x-position, y-position, and diameter

void drawBall(int x, int y, int diameter) {

  ellipse(x, y, diameter, diameter);

}

​

// this function takes an argument that will be used

// to change the speed of the ball

void moveBall(int speedMultiplier) {

  xPos = xPos + (1 * speedMultiplier);

}

​

void pacManBall() {

  if (xPos > width + 5) {

    xPos = -5;

  }

}

​

​

​