move across screen

float x = 100;

float speed =0.5;

int direction = 1;

int radius = 50;

​

void setup(){

  size(440,440);

  smooth();

  ellipseMode(RADIUS);

  //noLoop();

}

​

void draw(){

 background(135,206,350);

 fill(255,255,0);

 //arc(x,40,40,40,1.5,4.58); //set moon parameters

 x+= speed * direction; //move moon across the screen

 if((x>width-100) || (x<100)) { // change direction

   direction = -direction;  

 }

 if (direction == 1) {

   arc(x,60,radius,radius,0.52,5.76); //turn right

 } else {

   arc(x,60,radius,radius,3.67,8.9); //turn left

 }

}

​

​