I get the folowing error when I run my greeps:
java.lang.IndexOutOfBoundsException: Y is out of bounds. It was: 603 and it should have been smaller than: 600
at greenfoot.GreenfootImage.getRGBAt(GreenfootImage.java:571)
at greenfoot.GreenfootImage.getColorAt(GreenfootImage.java:528)
at Earth.isWater(Earth.java:60)
at Creature.move(Creature.java:119)
at Greep.act(Greep.java:62)
at greenfoot.core.Simulation.actActor(Simulation.java:507)
at greenfoot.core.Simulation.runOneLoop(Simulation.java:470)
at greenfoot.core.Simulation.runContent(Simulation.java:204)
at greenfoot.core.Simulation.run(Simulation.java:194)
This happens when one of the greeps touches the water at the edge of the map (what couses it to leave the world a litle bit). The strange thing is that the exact same code worked perfectly fine at school. My question was how I could solve this problem?
This is my code for the Greep.class:
import greenfoot.*; // (World, Actor, GreenfootImage, and Greenfoot)
/**
* A Greep is an alien creature that likes to collect tomatoes.
*
* @author (your name here)
* @version 0.1
*/
public class Greep extends Creature
{
// Remember: you cannot extend the Greep's memory. So:
// no additional fields (other than final fields) allowed in this class!
/**
* Default constructor for testing purposes.
*/
public Greep()
{
this(null);
}
/**
* Create a Greep with its home space ship.
*/
public Greep(Ship ship)
{
super(ship);
}
/**
* Do what a greep's gotta do.
*/
public void act()
{
super.act(); // do not delete! leave as first statement in act().
if (carryingTomato())
{
if(atShip()) {
dropTomato();
}
else {
WorldEdge();
atWater1();
turnHome();
move();
spit("purple");
}
}
if (false) {
if(atShip()) {
dropTomato();
}
else {
turnHome();
move();
}
}
else {
move();
checkFood();
WorldEdge();
atWater1();
turnToTomatoes();
folowPaint();
}
}
/**
* Is there any food here where we are? If so, try to load some!
*/
public void checkFood()
{
// check whether there's a tomato pile here
TomatoPile tomatoes = (TomatoPile) getOneIntersectingObject(TomatoPile.class);
if(tomatoes != null) {
loadTomato();
// Note: this attempts to load a tomato onto *another* Greep. It won't
// do anything if we are alone here.
}
}
/**
* This method specifies the name of the author (for display on the result board).
*/
public static String getAuthorName()
{
return "Anonymous"; // write your name here!
}
/**
* This method specifies the image we want displayed at any time. (No need
* to change this for the competition.)
*/
public String getCurrentImage()
{
if(carryingTomato())
return "greep-with-food.png";
else
return "greep.png";
}
public void WorldEdge()
{
if(atWorldEdge())
{
turn(70);
}
}
public void atWater1()
{
if(atWater())
{
turn(70);
move();
}
}
public boolean seeFood()
{
if (getOneIntersectingObject(TomatoPile.class) == null)
{
return false;
}
else
{
return true;
}
}
public void turnToTomatoes()
{
if (seeFood())
{
int deltaX = getOneIntersectingObject(TomatoPile.class).getX() - getX();
int deltaY = getOneIntersectingObject(TomatoPile.class).getY() - getY();
setRotation((int) (180 * Math.atan2(deltaY, deltaX) / Math.PI));
}
}
public boolean seePaint()
{
if (getIntersectingObjects(Paint.class) == null)
{
return false;
}
else
{
return true;
}
}
public void folowPaint()
{
if (carryingTomato())
{
}
else{
if (seePaint("purple")) {
turnHome();
turn(180);
}
}
}
}
