Hi guys,
First time posting here but I have received a lot of help from reading other posts. I'm working on a game and I keep getting an error when a spaceship is destroyed. I think it's because the spaceship is firing a laser and Greenfoot is trying to get the X and Y coordinates of the spaceship object but it can't because it has been destroyed. Here is the code for my fire method.
The error was:
In order to fix it I tried this....
...but this just got me a Null pointer exception error.
Any help appreciated and I'm happy to provide further info.
Thanks!
/**
* Fires a green laser.
*/
public void fire()
{
if(gunTimer == 0)
{
getWorld().addObject(new ImperialLaser(getRotation()+180, -(velocity * 3), "greenlaser"), getX() - 1, getY() - 0);
gunTimer = gunTimerMax;
//Greenfoot.playSound(".wav");
}
else if(gunTimer > 0)
{
gunTimer--;
}
}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. at greenfoot.Actor.failIfNotInWorld(Actor.java:695) at greenfoot.Actor.getX(Actor.java:157) at TieIn.fire(TieIn.java:104) at TieIn.act(TieIn.java:36) at greenfoot.core.Simulation.actActor(Simulation.java:594) at greenfoot.core.Simulation.runOneLoop(Simulation.java:552) at greenfoot.core.Simulation.runContent(Simulation.java:215) at greenfoot.core.Simulation.run(Simulation.java:205)
/**
* Fires a green laser.
*/
public void fire()
{
if(gunTimer == 0 && !getWorld().getObjects(TieIn.class).isEmpty())
{
getWorld().addObject(new ImperialLaser(getRotation()+180, -(velocity * 3), "greenlaser"), getX() - 1, getY() - 0);
gunTimer = gunTimerMax;
//Greenfoot.playSound(".wav");
}
else if(gunTimer > 0)
{
gunTimer--;
}
}