also does the counter need to be a world or an actor?
programmer22 wrote ...
2011/12/22
counter question
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i just switched it to world class so yeah ....
switched it to world and it put it back in actor
NOOOOO, you did not read what I wrote.
Your first two lines should beThen you should have:Finally, the eat method:
import Greenfoot.*; import java.util.List; // needed to create a list and use its methods
public class Crab extends Actor
{
/**
* Act - do whatever the Crab wants to do. This method is called whenever
* the 'Act' or 'Run' button gets pressed in the environment.
*/
public void act()
{
// etc. public void eat()
{
Actor worm;
worm = getOneObjectAtOffset (0, 0, Worm.class);
if (worm != null)
{
World world;
world = getWorld();
world. removeObject(worm);
List<Counter> counters = world.getObjects(Counter.class); // this lists all counters in the world (even if just one)
Counter counter = counters.get(0); // this get the first counter from the list (the only one)
counter.add(5); // this adds 5 to the counter pulled from the list
Greenfoot.playSound("eating.wav");
}
}
The counter IS an Actor! Anything that is put into the world with addObject IS an actor object.
The counter IS an Actor! Anything that is put into the world with addObject IS an actor object.
ok i copied and pasted what you put and it says cannot find symbol -class list sorry if im frustrating you just started so im not sure about all this programming lingimport greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
public class Crab extends Actor
{
/**
* Act - do whatever the Crab wants to do. This method is called whenever
* the 'Act' or 'Run' button gets pressed in the environment.
*/
public void act()
{
moveAndTurn();
eat();
}
public void moveAndTurn()
{
move(4);
if (Greenfoot.isKeyDown("right"))
{
turn(-10);
}
if (Greenfoot.isKeyDown("left"))
{
turn (10);
}
}
public void eat()
{
Actor worm;
worm = getOneObjectAtOffset (0, 0, Worm.class);
if (worm != null)
{
World world;
world = getWorld();
world. removeObject(worm);
List<Counter> counters = world.getObjects
(Counter.class); // this lists all counters in the world (even if just one) 11. Counter counter = counters.get(0); // this get the first counter from the list (the only one) 12. counter.add(5); // this adds 5 to the counter pulled from the list
Greenfoot.playSound("eating.wav");
}
} } o anyways heres what i have now
oooh should i have taken out some things here lemme mess with it
dang still says the same thing
You only copied the eat() method!!! Look closely at the first block of code, of the three I just posted together. You still do not have the second import line in your code.
ok made sure i did all the coding and only some of it is colored the rest is grayish it says cannot find symbol- class list then it high lights the word list here it is again import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
public class Crab extends Actor
{
/**
* Act - do whatever the Crab wants to do. This method is called whenever
* the 'Act' or 'Run' button gets pressed in the environment.
*/
public void act()
{
moveAndTurn();
eat();
}
public void moveAndTurn()
{
move(4);
if (Greenfoot.isKeyDown("right"))
{
turn(-10);
}
if (Greenfoot.isKeyDown("left"))
{
turn (10);
}
}
public void eat()
{
Actor worm;
worm = getOneObjectAtOffset (0, 0, Worm.class);
if (worm != null)
{
World world;
world = getWorld();
world. removeObject(worm);
List<Counter> counters = world.getObjects
(Counter.class); // this lists all counters in the world (even if just one)
Counter counter = counters.get
(0); // this get the first counter from the list (the only one)
counter.add(5); // this adds 5 to the counter pulled from the list
Greenfoot.playSound("eating.wav");
}
} }
dang i see where i messed it up
omg im so stupid for got to copy the top -.-
it works !!!! thank you ! but gave me a warning about recompiling but it works !! ty !!!
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