I have a return method in the world-class Galaxy. This return method returns the object score which holds information of the total score. I would like to access the method through the game over world, but how would I do that?
Here is what I tried to do in my game over class:
And here is my galaxy class:
Lastly my score class:
So how would I get around this?
import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
/**
* Write a description of class GameOver here.
*
* @author (your name)
* @version (a version number or a date)
*/
public class GameOver extends World
{
GreenfootImage over = new GreenfootImage("Game Over Pop Up.png");
private Score theScore;
public GameOver()
{
// Create a new world with 600x400 cells with a cell size of 1x1 pixels.
super(1000, 900, 1);
prepare();
theScore = new Score();
}
public void prepare()
{
Picture gameOver = new Picture(over, 1, 1);
addObject(gameOver, getWidth()/2, 350);
TryAgain tryAgain = new TryAgain();
addObject(tryAgain, getWidth()/2, getHeight()/2 + 30);
Exit exit = new Exit();
addObject(exit, getWidth()/2, getHeight()/2 + 125);
// What I attempted
Galaxy galaxyWorld = (Galaxy) getWorld(); // can't use getWorld() in world class
Score score = galaxyWorld.getScore();
int totalScore = score.returnTotalScore();
GreenfootImage finalScore = new GreenfootImage("FINAL SCORE: " + totalScore, 20, Color.WHITE, new Color(0,0,0,0));
getBackground().drawImage(finalScore, getWidth() - 30, getHeight() - 70);
}
}
import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
/**
* Write a description of class Galaxy here.
*
* @author (your name)
* @version (a version number or a date)
*/
public class Galaxy extends World
{
private GreenfootImage title = new GreenfootImage("Space Rush.png");
private GreenfootSound chillwave = new GreenfootSound("Background Music.mp3");
private GreenfootImage bg = getBackground();
private Score score;
private Timer timer;
private Spacecraft spacecraft;
private HealthBar healthBar;
private Picture logo;
private int asteroidCounter, speedCounter, healthCounter = 0;
private int randomNumberA;
public Galaxy()
{
super(1000, 900, 1);
logo = new Picture(title,2,2);
timer = new Timer();
spacecraft = new Spacecraft();
score = new Score();
healthBar = new HealthBar(300, 20, spacecraft);
prepare();
Greenfoot.setSpeed(50);
}
private void prepare()
{
int width = getWidth();
int height = getHeight();
addObject(logo, width/2, height/10);
addObject(timer, width/2 - width/3, getHeight()/15);
addObject(spacecraft,width/5,height/2);
addObject(score, width/2 + width/3, height/15);
addObject(healthBar, width/2, getHeight() - height/22);
drawImage();
shootInstructions();
}
/**
* Draws and fills in rectangles which are used to signify the boundaries of the game
*/
private void drawImage()
{
int width = getWidth();
bg.setColor(Color.WHITE);
bg.drawRect(0, 115, width, 15);
bg.drawRect(0, 800, width, 15);
bg.setColor(new Color(83, 64, 34));
bg.fillRect(0, 116, width, 14);
bg.fillRect(0, 801, width, 14);
}
/**
* Displays what keys to press on the screen in order to fire their weapon
*/
private void shootInstructions()
{
GreenfootImage instructions = new GreenfootImage("\"Press 1 to fire Sphere\"", 20, Color.WHITE, new Color(0,0,0,0));
getBackground().drawImage(instructions, 30, getHeight() - 70);
GreenfootImage instructions2 = new GreenfootImage("\"Press 2 to fire Magnet\"", 20, Color.WHITE, new Color(0,0,0,0));
getBackground().drawImage(instructions2, 30, getHeight() - 50);
GreenfootImage instructions3 = new GreenfootImage("\"Hold 3 to fire Ray\"", 20, Color.WHITE, new Color(0,0,0,0));
getBackground().drawImage(instructions3, 42, getHeight() - 30);
}
/**
* Adds score over time, the longer the player survives, the more score they obtain
*/
public void scoreOverTime()
{
if(timer.getTimeElapsed() > 0 && timer.getInitialCount() <= 0)
{
score.addScore(1);
}
}
/**
* Returns score
*/
public Score getScore()
{
return score;
}
public Spacecraft getSpacecraft()
{
return spacecraft;
}
/**
* The more time elapsed, the more often asteroids will spawn
*/
public void controllingDifficulty()
{
int timeElapsed = timer.getTimeElapsed();
if(timeElapsed >= 0 && timeElapsed < 15) randomNumberA = Greenfoot.getRandomNumber(50); // 1 in 50 chance every act cycle an asteroid will spawn
else if(timeElapsed >= 15 && timeElapsed < 30)randomNumberA = Greenfoot.getRandomNumber(40); // 1 in 40 chance
else if (timeElapsed >= 30 && timeElapsed < 45)randomNumberA = Greenfoot.getRandomNumber(35); // 1 in 35 chance
else if (timeElapsed >- 45 && timeElapsed < 60)randomNumberA = Greenfoot.getRandomNumber(30); // 1 in 30 chance
else if (timeElapsed >= 60)
{
randomNumberA = Greenfoot.getRandomNumber(20); // 1 in 20 chance
Greenfoot.setSpeed(55); // game gets faster
}
else if(timeElapsed >= 90) Greenfoot.setSpeed(60); // EVEN faster
}
/**
* Adds asteroids beyond the world's x-axis in a randomized manner
*/
public void addingAsteroid()
{
controllingDifficulty();
asteroidCounter++;
if(randomNumberA < 1 && asteroidCounter > 10 )
{
addObject(new Asteroid(), getWidth(), getRandomNumber(160, 760));
asteroidCounter = 0;
}
}
/**
* Adds speed powerups beyond world's x-axis in a randomized manner
*/
public void addingSpeedPowerup()
{
speedCounter++;
if(Greenfoot.getRandomNumber(500) < 1 && speedCounter > 350)
{
addObject(new Speed(), getWidth(), getRandomNumber(160, 760));
speedCounter = 0;
}
}
/**
* Adds health powerups beyond the world's x-axis in a randomized manner
*/
public void addingHealthPowerup()
{
healthCounter++;
if(Greenfoot.getRandomNumber(500) < 1 && healthCounter > 500)
{
addObject(new Health(), getWidth(), getRandomNumber(160, 760));
healthCounter = 0;
}
}
/**
* Method used to get a random number between two integers
*/
public int getRandomNumber(int start,int end)
{
int normal = Greenfoot.getRandomNumber(end-start+1);
return normal+start;
}
/**
* Plays background music when scenario is ran
*/
public void started()
{
chillwave.setVolume(25);
chillwave.play();
}
/**
* Stops background music when scenario is stopped
*/
public void stopped()
{
chillwave.stop();
}
public void act()
{
int timeElapsed = timer.getTimeElapsed();
if(timeElapsed > 0)
{
addingAsteroid();
addingSpeedPowerup();
addingHealthPowerup();
}
scoreOverTime();
}
}
import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
/**
* Write a description of class Counter here.
*
* @author (your name)
* @version (a version number or a date)
*/
public class Score extends Actor
{
private int totalScore = 0;
public Score()
{
setImage(new GreenfootImage("SCORE: 0", 25, Color.WHITE, Color.BLACK));
}
public void addScore(int amount)
{
totalScore += amount;
setImage(new GreenfootImage("SCORE: " + totalScore, 20, Color.WHITE, Color.BLACK));
}
public int returnTotalScore()
{
return totalScore;
}
}
