So I'm trying to create a game for a project I have that's due tomorrow. The game and code is relatively simple (it's a WIP). I am trying to create a method that will increase the 'moveAmount' (how quickly the Apple falls) variable by 1 every 20 apples eaten, but I can't seem to get anything to work. Any ideas? (NOTE: I mean the moveAmount variable in the Apple class NOT the one in the Dinosaur class.) Also, I apologize if the code is not formatted correctly as this is my first time using this forum.
Here's the code for the Apple class:
Here's the code for the Counter class:
Here's the code for the MyWorld class:
And (lastly) here's the code for Dinosaur class (which is meant to eat the apples):
import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
public class Apple extends Animal
{
int moveAmount = 3;
public Apple()
{
super();
}
public void act()
{
setLocation(getX(), getY() + moveAmount);
gameOver();
}
public void gameOver()
{
if(getY() > 599)
{
Greenfoot.stop();
}
}
}import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
public class Counter extends Actor
{
private static final Color transparent = new Color(0,0,0,0);
private GreenfootImage background;
private int value;
private int target;
private String prefix;
public Counter()
{
this(new String());
}
/**
* Create a new counter, initialised to 0.
*/
public Counter(String prefix)
{
background = getImage(); // get image from class
value = 0;
target = 0;
this.prefix = prefix;
updateImage();
}
/**
* Animate the display to count up (or down) to the current target value.
*/
public void act()
{
if (value < target) {
value++;
updateImage();
}
else if (value > target) {
value--;
updateImage();
}
}
/**
* Add a new score to the current counter value. This will animate
* the counter over consecutive frames until it reaches the new value.
*/
public void add(int score)
{
target += score;
}
/**
* Return the current counter value.
*/
public int getValue()
{
return target;
}
/**
* Set a new counter value. This will not animate the counter.
*/
public void setValue(int newValue)
{
target = newValue;
value = newValue;
updateImage();
}
/**
* Sets a text prefix that should be displayed before
* the counter value (e.g. "Score: ").
*/
public void setPrefix(String prefix)
{
this.prefix = prefix;
updateImage();
}
/**
* Update the image on screen to show the current value.
*/
private void updateImage()
{
GreenfootImage image = new GreenfootImage(background);
GreenfootImage text = new GreenfootImage(prefix + value, 22, Color.BLACK, transparent);
if (text.getWidth() > image.getWidth() - 20)
{
image.scale(text.getWidth() + 20, image.getHeight());
}
image.drawImage(text, (image.getWidth()-text.getWidth())/2,
(image.getHeight()-text.getHeight())/2);
setImage(image);
}
}import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
public class MyWorld extends World
{
Counter Counter = new Counter("Score: ");
public MyWorld()
{
// Create a new world with 830x600 cells with a cell size of 1x1 pixels.
super(830, 600, 1);
setBackground("forest.jpg");
populate();
}
public void populate()
{
Dinosaur Dinosaur = new Dinosaur();
addObject(Dinosaur, getWidth() / 2, getHeight() - 200);
Apple Apple = new Apple();
addObject(Apple, Greenfoot.getRandomNumber(729) + 51, 0);
addObject(Counter, 750, 50);
}
public void countApples()
{
Counter.add(1);
}
}import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
public class Dinosaur extends Animal
{
private int moveAmount;
private boolean edge;
private String dinosaurFaceTowards;
private int timer = 0;
public Dinosaur()
{
moveAmount = 5;
edge = false;
}
public void act()
{
checkKeys();
eatApples();
animateDinosaur();
}
public void checkKeys()
{
if(Greenfoot.isKeyDown("left") || Greenfoot.isKeyDown("a"))
{
setLocation(getX() - moveAmount, getY());
}
else if(Greenfoot.isKeyDown("right") || Greenfoot.isKeyDown("d"))
{
setLocation(getX() + moveAmount, getY());
}
}
public void eatApples()
{
Actor Apple = getOneIntersectingObject(Apple.class);
if(Apple != null)
{
getWorld().removeObject(Apple);
timer = 15;
((MyWorld) getWorld()).countApples();
((MyWorld) getWorld()).addObject(new Apple(), Greenfoot.getRandomNumber(729) + 51, 0);
}
}
public void animateDinosaur()
{
if(timer <= 15 && timer > 0)
{
if(Greenfoot.isKeyDown("left") || Greenfoot.isKeyDown("a"))
{
dinosaurFaceTowards = "left";
setImage("dinosaur3-left.png");
}
else if(Greenfoot.isKeyDown("right") || Greenfoot.isKeyDown("d"))
{
dinosaurFaceTowards = "right";
setImage("dinosaur3-right.png");
}
else if(dinosaurFaceTowards == "left")
{
setImage("dinosaur3-left.png");
}
else if(dinosaurFaceTowards == "right")
{
setImage("dinosaur3-right.png");
}
timer--;
}
else if(Greenfoot.isKeyDown("left") || Greenfoot.isKeyDown("a"))
{
dinosaurFaceTowards = "left";
setImage("dinosaur2-left.png");
}
else if(Greenfoot.isKeyDown("right") || Greenfoot.isKeyDown("d"))
{
dinosaurFaceTowards = "right";
setImage("dinosaur2-right.png");
}
else
{
if(dinosaurFaceTowards == "left")
{
setImage("dinosaur1-left.png");
}
else if(dinosaurFaceTowards == "right")
{
setImage("dinosaur1-right.png");
}
}
}
}