Discussions

public class Pxl2 extends Actor { private int vSpeed = 0; private int acceleration = 1; private int jumpHeight= - 8; Ball2 ball2 = new Ball2(); Wall wall = new Wall(); /** * Act - do whatever the Pxl2 wants to do. This method is called whenever * the 'Act' or 'Run' button gets pressed in the environment. */ public void act() { movement(); checkFall(); images(); fireball(); fireWall(); dead(); } /** * This method lets the character move */ public void movement() { int y = getY(); int x = getX(); if(Greenfoot.isKeyDown("left")) { move(-5); } if(Greenfoot.isKeyDown("right")) { move(5); } if(Greenfoot.isKeyDown("up")) { jump(); } } /** * changes the images for the fighting */ public void images() { if(Greenfoot.isKeyDown("/")) { setImage("Rival-punch.png"); } else { setImage("Rival-1.png"); } if(Greenfoot.isKeyDown(".")) { setImage("Rival-kick.png"); } if(Greenfoot.isKeyDown("left")) { setImage("Rival-move-forward.png"); } if(Greenfoot.isKeyDown("right")) { setImage("Rival-move.png"); } } /** * makes the character jump */public void jump() { vSpeed= -5; gravity(); } /** * makes the character fall */ public void checkFall() { if(onGround()) { vSpeed = 0; } else { gravity(); } } /** * makes the fall look real */ private void gravity() { setLocation(getX(), getY() +vSpeed); vSpeed = vSpeed + acceleration; } /** * makes the character land on the ground */ public boolean onGround() { Actor under = getOneObjectAtOffset(0,getImage().getHeight()/2,Ground.class); return under != null; } /** * makes the character shoot the fireball */ public void fireball() { if (Greenfoot.isKeyDown("'")) { setImage("Rival-punch.png"); World MyWorld = getWorld(); MyWorld.addObject(ball2, 0, 0); ball2.setLocation(getX(), getY()); ball2.setRotation(getRotation()); } } /** * special ability activate. makes a fire wall */ public void fireWall() { if (Greenfoot.isKeyDown("0")) { setImage("Rival-punch.png"); World MyWorld = getWorld(); MyWorld.addObject(wall, 0, 0); wall.setLocation(getX(), getY()); wall.setRotation(getRotation()); } } public void dead() { if(isTouching(Giant.class)) { removeTouching(Giant.class); } } public void hitByFire() { Actor Fire = getObjectsAtOffset(10,10,Fire.class); if(Fire.class != null) { //World world = getWorld(); MyWorld myWorld = (MyWorld)getWorld; HealthBar2 HealthBar2 = MyWorld.getHealthBar2(); healthbar2.loseHealth(); } } }

<Code Omitted> When it crashes, it says : java.lang.IllegalStateException: Actor not in world. An attempt was made to use the actor's location while it is not in the world. Either it has not yet been inserted, or it has been removed. Under that are two red marked text : at Bullet.Spielerentfernen1(Bullet.java:26) at Bullet.act(Bullet.java:21)

i kill turtle bois if(isAtEdge()) { World MyWorld = getWorld(); MyWorld.removeObject(this); } else if(isTouching(Pxl2.class)) { World MyWorld = getWorld(); MyWorld.removeObject(this); } else if(isTouching(Wall.class)) { World MyWorld = getWorld(); MyWorld.removeObject(this); } else if(isTouching(Ball2.class)) { World MyWorld = getWorld(); MyWorld.removeObject(this); }