import greenfoot.*;
public class MyWorld extends World
{
static Actor scoreDisplay;
static Actor highScoreDisplay;
static int score;
static int highScore;
public MyWorld()
{
super(600, 400, 1, false);
prepare();
scoreDisplay = new Scoreboard();
highScoreDisplay = new HighScore();
score = -1;
highScore = -1;
adjustScore(1);
}
public Scoreboard getScoreboard()
{
return scoreboard;
}
static void adjustScore(int amt)
{
score += amt;
GreenfootImage img = new GreenfootImage("Score: "+score, 24, Color.RED, Color.BLACK);
scoreDisplay.setImage(img);
if (score > highScore)
{
highScore = score;
img = new GreenfootImage("High score: "+highScore, 24, Color.RED, Color.BLACK);
highScoreDisplay.setImage(img);
}
}
public void act()
{
Switchscreen();
if(Greenfoot.getRandomNumber(20)<1)
{
addMeteor();
}
}
public void addMeteor()
{
addObject(new Meteors(),getWidth()-1,Greenfoot.getRandomNumber(getHeight()));
}
private void prepare()
{
Rocket Rocket = new Rocket();
addObject(Rocket,100,200);
Rocket.setLocation(70,200);
}
public void Switchscreen()
{
boolean noRockets = getObjects(Rocket.class).isEmpty();
if (noRockets == true)
{
Greenfoot.setWorld(new Playagain());
}
}
}import greenfoot.*;
public class Scoreboard extends Actor
{
public int score = 0;
/**
* Act - do whatever the Scoreboard wants to do. This method is called whenever
* the 'Act' or 'Run' button gets pressed in the environment.
*/
public void act()
{
setImage(new GreenfootImage("Score: " + score,24,Color.RED,Color.BLACK));
}
public void addscore()
{
score++;
}
}import greenfoot.*;
public class Meteors extends Obstacles
{
public void act()
{
move();
meteor();
remove();
}
public void meteor()
{
Actor lasars = getOneIntersectingObject(Lasars.class);
if(lasars != null)
{
World MyWorld = getWorld();
MyWorld myWorld = (MyWorld)MyWorld;
Scoreboard scoreboard = myWorld.getScoreboard();
scoreboard.addscore();
getWorld().removeObject(lasars);
for(int i=0;i<10;i++)
{
int posx=-20+Greenfoot.getRandomNumber(40);
int posy=-20+Greenfoot.getRandomNumber(40);
getWorld().addObject(new Animate(getImage()),getX()+posx,getY()+posy);
}
getWorld().addObject(new Explosion(),getX(),getY());
toRemove=true;
}
}
}import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
/**
* Write a description of class HighScore here.
*
* @author (your name)
* @version (a version number or a date)
*/
public class HighScore extends Actor
{
int highscore = 0;
int savescore = 0;
public void act()
{
setImage(new GreenfootImage("High Score: " + highscore,20,Color.RED,Color.BLACK));
}
public void gamehighscore()
{
}
}