public boolean keyDown(Event evt, int key) {
if(key == Event.RIGHT && places[1].x!=places[0].x+1) { dir=0; game=true; playing=true; return true; }
else if(key == Event.LEFT && places[1].x!=places[0].x-1) { dir=1; game=true; playing=true; return true; }
else if(key == Event.UP && places[1].y!=places[0].y-1) { dir=2; game=true; playing=true; return true; }
else if(key == Event.DOWN && places[1].y!=places[0].y+1) { dir=3; game=true; playing=true; return true; }
else if(key == 112) {
playing=false;
return true;
}