final int LEVEYS = 600;
final int KORKEUS = 450;
int  x, y, r;


void setup(){
  size(LEVEYS, KORKEUS);
  frameRate(60);
  x = LEVEYS / 2;
  y = KORKEUS / 2;
  r = 25;
  fill(65,65,65);
}  

void draw(){
  background(125,125,125);
  ellipse(x,y,r*2,r*2);  
  line(x, y, mouseX, mouseY); 

  
}

void keyPressed(){
    if (keyCode == LEFT){
         x = r;
         y = KORKEUS / 2;
    }
    if (keyCode == RIGHT){
        x = LEVEYS-r;
        y = KORKEUS / 2;
    }
    if (keyCode == UP){
       x = LEVEYS / 2;
       y = r;
    }
    if (keyCode == DOWN){
      x = LEVEYS / 2;
      y = KORKEUS-r;
    }
    if (keyCode == ENTER){
        x = LEVEYS / 2;
        y = KORKEUS / 2;
    } 
    if(key == '+'){
       r = r+5; 
    }
    if(key == '-'){
       r = r-5; 
    }
}


void mousePressed() {
  if (mouseButton == LEFT) {
    fill(0);
  } else if (mouseButton == RIGHT) {
    fill(255);
  } 
}