ive got a simple two player pong game that I need to display a gameover image on when one player hits 8 points, I want to add code into the world class to do this but I don't know what code to add??


1 2 3 4 5 6 7 | if (score == 8 ) { music.stop(); Greenfoot.setWorld( new P1Win()); } |
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 | import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo) /** * Write a description of class PongWorld here. * * @author (your name) * @version (a version number or a date) */ public class PongWorld extends World { private Paddle paddle; public Paddle paddle1; public Paddle paddle2; public Counter score1; public Counter score2; /** * Constructor for objects of class PongWorld. * */ public PongWorld() { // Create a new world with 20x20 cells with a cell size of 10x10 pixels. super ( 700 , 500 , 1 ); score1= new Counter(); score2= new Counter(); addObject (score1, 50 , 35 ); addObject(score2, 50 , 465 ); paddle1 = new Paddle(); addObject ( paddle1, getWidth() / 2 , getHeight() - 40 ); paddle2 = new Paddle( "a" , "s" ); addObject ( paddle2, getWidth() / 2 , getHeight() - 450 ); addObject( new Ball(), 350 , 250 ); GreenfootImage bg = new GreenfootImage( "pink.jpg" ); bg.scale(getWidth(), getHeight()); setBackground(bg); } public void scoreTop() { score1.add( 1 ); } public void scoreBottom() { score2.add( 1 ); } public void act() { } } |
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 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 | import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo) /** * A Counter class that allows you to display a numerical value on screen. * * The Counter is an actor, so you will need to create it, and then add it to * the world in Greenfoot. If you keep a reference to the Counter then you * can adjust its value. Here's an example of a world class that * displays a counter with the number of act cycles that have occurred: * * <pre> * class CountingWorld * { * private Counter actCounter; * * public CountingWorld() * { * super(600, 400, 1); * actCounter = new Counter("Act Cycles: "); * addObject(actCounter, 100, 100); * } * * public void act() * { * actCounter.setValue(actCounter.getValue() + 1); * } * } * </pre> * * @author Neil Brown and Michael Kölling * @version 1.0 */ 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); } } |