Please help me, now I'm trying to make a sustitution of classes, however, when I want to put the new Object it opens the Terminal Window, this is the error line.
mundo.addObject(mundo.ka,getX(),getY());
mundo.addObject(mundo.ka,getX(),getY());
public class cai extends animator { int a,b,c; MyWorld mundo; public cai() {super("ni",".png",6); } protected void addeToWorld(World w) {mundo=(MyWorld)w; } public void act() { play(); retardo=7; if(isEnd()) {mundo.addObject(mundo.ka,getX(),getY()); mundo.removeObject(this); return; } } }