i have it so when the rocket hits a asteroid it plays a noise and the asteroid disappears. I tried making it able to remove the rocket ship and the asteroid at the same time but when i try to compile it says cannot find symbol- variable rocketship1.here is rocketship1 code
import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
/**
* the main spaceship for the game.
*
* @author (Kevin Welch)
* @version (2.0)
*/
public class rocketship1 extends Actor
{
/**
* Act - do whatever the rocketship1 wants to do. This method is called whenever
* the 'Act' or 'Run' button gets pressed in the environment.
*/
public void act()
{
checkKeys();
foundasteroid();
hitasteriod();
}
/**
* check's what key is pressed
*/
public void checkKeys()
{
if ( Greenfoot.isKeyDown("d") )
{
turn(5);
}
if ( Greenfoot.isKeyDown("a") )
{
turn(-5);
}
if ( Greenfoot.isKeyDown("w") )
{
move(4);
}
if ( Greenfoot.isKeyDown("s") )
{
move(-1);
}
}
/**
* Check whether there is a asteroid in the same cell as we are.
*/
public boolean foundasteroid()
{
Actor asteroid = getOneObjectAtOffset(2, 2, asteroid.class);
if(asteroid != null)
{
return true;
}
else {
return false;
}
}
/**
* destroy's asteroid and ship.
*/
public void hitasteriod()
{
Actor asteroid = getOneObjectAtOffset(2, 2, asteroid.class);
if(asteroid != null) {
Greenfoot.playSound("Explosion.mp3");
getWorld().removeObject(asteroid);
getWorld().removeobject(rocketship1);
}
}
}