Exit.java

package rabbitescape.engine;

import static rabbitescape.engine.ChangeDescription.State.*;

import java.util.HashMap;
import java.util.Map;

public class Exit extends Thing
{
    World world;

    public Exit( int x, int y )
    {
        super( x, y, EXIT );
    }

    @Override
    public void calcNewState( World world )
    {
    }

    @Override
    public void step( World world )
    {
        this.world = world;
    }

    @Override
    public Map<String, String> saveState()
    {
        return new HashMap<String, String>();
    }

    @Override
    public void restoreFromState( Map<String, String> state )
    {
    }

    @Override
    public String overlayText()
    {
        return world == null ? "Exit" : "Exit\n" + world.num_saved + " saved";
    }
}