Here is the code that i am working with. The error appears on at every "int".
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 | import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)import java.util.*;public class Explosion extends Actor{ /** * Act - do whatever the Explosion wants to do. This method is called whenever * the 'Act' or 'Run' button gets pressed in the environment. */ public void act() { // Add your action code here. } }/** * An explosion. It starts by expanding and then collapsing. * The explosion will explode other obejcts that the explosion intersects. */public class Explosion extends Actor{; /** How many images should be used in the animation of the explostion */ private final static int IMAGE_COUNT= 1;} /** * The images in the explosion. This is static so the images are not * recreated for every object (improves performance significantly). */ private static GreenfootImage[] images; /** Current size of the explosion */ private int imageNo = 0; /** How much do we increment the index in the explosion animation. */ private int increment=1; public Explosion() { initialiseImages(); setImage(images[0]); Greenfoot.playSound("Explosion.wav"); } /** * Create the images for explosion. */ public synchronized static void initialiseImages() { if(images == null) { GreenfootImage baseImage = new GreenfootImage("explosion.png"); int maxSize = baseImage.getWidth()/2; int delta = maxSize / (IMAGE_COUNT+1); int size = 0; images = new GreenfootImage[IMAGE_COUNT]; for(int i=0; i < IMAGE_COUNT; i++) { size = size + delta; images[i] = new GreenfootImage(baseImage); images[i].scale(size, size); } } } /** * EXPLODE! */ public void act() { if(imageNo > 0) { setImage(images[imageNo]); } imageNo += increment; if(imageNo >= IMAGE_COUNT) { increment = -increment; imageNo += increment; } if(imageNo <= 0) { setImage(new GreenfootImage(1,1)); } if(imageNo <= -30) { ((Space) getWorld()).gameOver(); } }} |
