//demo of simple functions
//do not copy this code for assignments: write it out yourself, in your own words, where aplicable.

float randStartX =100;  //variable for random start location
float randStartY =100;  //variable for random start location
float circleDiameter=10; //like it says
float x,y,z;

void setup() {

  size(600, 600);  //set screen size
  noStroke();       //don't stroke objects
  frameRate(20);  //limit framerate to 20fps
  background(255);
  ellipseMode(CENTER);  // Set ellipseMode to CENTER
}



void draw() {

  makeRandomCircle();

}



//scroll down





void makeRandomCircle() {        //and here is a function
  x= random(255);                // store random colour values
  y= random(255);
  z= random(255);
  fill(x,y,z);                  //set random colour
  randStartX=random(width);     //pick a start location for X
  randStartY=random(height);     //pick a start location for Y
  ellipse(randStartX,randStartY, circleDiameter,circleDiameter); //draw circle

}