Quote:
Original post by i4ba1
yes, i have. but idon't have idea how to make multiple bullet fire with different position. can you help me please??.
package com;import java.io.IOException;import javax.microedition.lcdui.Image;import javax.microedition.lcdui.game.Sprite;public class Bullet extends Sprite { private boolean active = true; private int xDirection = 0; private int yDirection = 0; private static int HEIGHT = 25; private static int WIDTH = 25; private int[] sequence; private static final int FRATE = 1; public Bullet(Image image, int w, int h)throws IOException { super(image, w, h); // TODO Auto-generated constructor stub WIDTH = w; HEIGHT = h; defineReferencePixel(WIDTH/2, HEIGHT/2); } public Bullet(Image image,int w,int h, int x, int y, int xDirection, int yDirection) throws IOException { //Initialized bullet super(image, w, h); WIDTH = w; HEIGHT = h; setFrameSequence(sequence); defineReferencePixel(WIDTH/2, HEIGHT/2); this.xDirection = xDirection; this.yDirection = yDirection; this.setRefPixelPosition(x, y); } public void setSpeed(int speed) { this.yDirection = speed; } public int getSpeed() { return this.yDirection; } public void advanced(int tick) { //bullet rate if (tick%FRATE==0 && active == true) { if (this.getRefPixelY() > 0 && this.getRefPixelX() > 0) { //System.out.println("y "+yDirection); this.setSpeed(yDirection); System.out.println("xDirection "+xDirection+" yDirection "+yDirection); this.move(xDirection, -yDirection); //this.move(-xDirection, yDirection); } else { super.setVisible(false); active = false; } } } public void shot(int w, int h) { active = true; this.setRefPixelPosition(w, h); this.setVisible(true); } public void shot2(int w, int h) { active = true; this.setRefPixelPosition(w, h); this.setVisible(true); } public boolean isAppear() { return active; } public void destroy() { super.setVisible(false); active = false; }}public void initBullet(Image image, int w, int h) throws IOException { bullet = new Bullet(image, w, h); }i create metho Bullet fire. here i call setSpeed and shot method in bullet classpublic Bullet fire(int ticks) { if (ticks - fireTick > shoot_rate) { fireTick = ticks; bullet.setSpeed(BULLET_SPEED,90); bullet.shot(this.getRefPixelX(), this.getRefPixelY()); return bullet; } else { return null; } }Here is my code that create image for bullet in GameManager.javafirst i create image for bulet, call the bullet constructor, call the methode init bullet in ship class.bulletImage = Image.createImage(BULLET_IMAGE); bullet = new Bullet(bulletImage, BULLET_WIDTH, BULLET_HEIGHT); ship.initBullet(bulletImage, BULLET_WIDTH, BULLET_HEIGHT);and here is the code that run bullet when fire button pressedif ((keyState & canvas.FIRE_PRESSED) != 0) { try { newBullet = ship.fire(ticks);// fire new bullet // throw old bullet away if (newBullet != null) { this.remove(bullet); bullet = newBullet; this.append(bullet); } } catch (Exception e) { System.out.println("Object created " + e.toString()); } } if (bullet!= null) bullet.advanced(ticks); if (!bullet.isAppear()) this.remove(bullet);package com;import java.io.IOException;import javax.microedition.lcdui.Image;import javax.microedition.lcdui.game.Sprite;public class Ship extends Sprite { private int rate = 5; protected int speedX = 5; protected int speedY = 5; private static final int BULLET_SPEED = 25; private int h, w; private static final int[] SEQUENCE = {0}; private int sequenceIndex = 0; private static final int MAX_HP = 1000; private static final int DAMAGE_RATE = 20; private int fireTick = 0; private int current_hp = MAX_HP; private int shoot_rate = 50; private boolean destroyed = false; private int damageTick; private Bullet bullet; public Ship(Image image, int w, int h) throws IOException { super(image, w, h); this.w = w; this.h = h; setFrame(0); //setFrameSequence(SEQUENCE); //setFrame(SEQUENCE[0]); defineReferencePixel(w / 2, h / 2); this.setTransform(this.TRANS_MIRROR_ROT270); } public void initBullet(Image image, int w, int h) throws IOException { bullet = new Bullet(image, w, h); } public void advanced(int ticks) { if (ticks % rate == 0) { //nextFrame(); } } public void moveLeft() { if (this.getRefPixelX() > 0) { this.move(-speedX, 0); } } public void moveRight(int m) { if (this.getRefPixelX() < m) { this.move(speedX, 0); } } public void moveUp() { if (this.getRefPixelY() > 0) { this.move(0, -speedY); } } public void moveDown(int m) { if (this.getRefPixelY() < m) { this.move(0, speedY); } } public Bullet fire(int ticks) { if (ticks - fireTick > shoot_rate) { fireTick = ticks; bullet.setSpeed(BULLET_SPEED); bullet.shot(this.getRefPixelX(), this.getRefPixelY()); bullet.shot2(this.getRefPixelX(), this.getRefPixelY()); return bullet; } else { return null; } } public void collised(int ticks, int damage) { if (!destroyed) if (ticks > damageTick + DAMAGE_RATE) { current_hp -= damage; if (current_hp <= 0) { destroyed = true; } damageTick = ticks; } } public boolean isDestroyed() { return destroyed; } public double getHPPercentage() { if (!destroyed) return ((double) current_hp / (1.0 * MAX_HP)); else return 0; } public boolean isDamageable(int ticks) { return (ticks > damageTick + DAMAGE_RATE); } public Bullet getBullet() { return bullet; }}here is my GameManager.javapackage com;import java.io.InputStream;import javax.microedition.lcdui.Graphics;import javax.microedition.lcdui.Image;import javax.microedition.lcdui.game.LayerManager;public class GameManager extends LayerManager { // ship private Image shipImage; private static final String SHIP_IMAGE = "/blue_ship.png"; private static final int SHIP_WIDTH = 40; private static final int SHIP_HEIGHT = 33; // bullet Image bullet private Image bulletImage; private static final String BULLET_IMAGE = "/shot.png"; private static final int BULLET_WIDTH = 25; private static final int BULLET_HEIGHT = 25; // game windows private int canvasX, canvasY; private int leftPosX = 0, leftPosY = 0;// game windows private int height, width; // variables and objects protected MyCanvas canvas; private Ship ship; private Bullet bullet; private Bullet newBullet; public GameManager(int x, int y, int height, int width, MyCanvas canvas) throws Exception { super(); this.canvasX = x; this.canvasY = y; this.width = width; this.height = height; this.canvas = canvas; // --------------------------------------------------------------------- // LOAD SHIP // --------------------------------------------------------------------- // load ship images shipImage = Image.createImage(SHIP_IMAGE); // create space ship ship = new Ship(shipImage, SHIP_WIDTH, SHIP_HEIGHT); InputStream in = getClass().getResourceAsStream("/shooting.wav"); ship.setRefPixelPosition(height / 2, width / 2); this.append(ship); bulletImage = Image.createImage(BULLET_IMAGE); bullet = new Bullet(bulletImage, BULLET_WIDTH, BULLET_HEIGHT); ship.initBullet(bulletImage, BULLET_WIDTH, BULLET_HEIGHT); } public void paint(Graphics g) { // paint graphics paint(g,canvasX,canvasY); } // To move ship public void advanced(int ticks) { int keyState = canvas.getKeyStates(); // turn shift to right if ((keyState & canvas.RIGHT_PRESSED) != 0) { ship.moveRight(width); } if ((keyState & canvas.LEFT_PRESSED) != 0) { ship.moveLeft(); } if ((keyState & canvas.UP_PRESSED) != 0) { ship.moveUp(); } if ((keyState & canvas.DOWN_PRESSED) != 0) { ship.moveDown(height); } if ((keyState & canvas.FIRE_PRESSED) != 0) { try { newBullet = ship.fire(ticks);// fire new bullet // throw old bullet away if (newBullet != null) { this.remove(bullet); bullet = newBullet; this.append(bullet); } } catch (Exception e) { System.out.println("Object created " + e.toString()); } } if (bullet!= null) bullet.advanced(ticks); if (!bullet.isAppear()) this.remove(bullet); // advance ship //ship.advanced(ticks); }}here is my bullet codepackage com;import java.io.IOException;import javax.microedition.lcdui.Image;import javax.microedition.lcdui.game.Sprite;public class Bullet extends Sprite { private boolean active = true; private int xDirection = 0; private int yDirection = 0; private static int HEIGHT = 25; private static int WIDTH = 25; private int[] sequence; private static final int FRATE = 1; public Bullet(Image image, int w, int h)throws IOException { super(image, w, h); // TODO Auto-generated constructor stub WIDTH = w; HEIGHT = h; defineReferencePixel(WIDTH/2, HEIGHT/2); } public Bullet(Image image,int w,int h, int x, int y, int xDirection, int yDirection) throws IOException { //Initialized bullet super(image, w, h); WIDTH = w; HEIGHT = h; setFrameSequence(sequence); defineReferencePixel(WIDTH/2, HEIGHT/2); this.xDirection = xDirection; this.yDirection = yDirection; this.setRefPixelPosition(x, y); } public void setSpeed(int speed) { this.yDirection = speed; } public int getSpeed() { return this.yDirection; } public void advanced(int tick) { //bullet rate if (tick%FRATE==0 && active == true) { if (this.getRefPixelY() > 0 && this.getRefPixelX() > 0) { //System.out.println("y "+yDirection); this.setSpeed(yDirection); System.out.println("xDirection "+xDirection+" yDirection "+yDirection); this.move(xDirection, -yDirection); //this.move(-xDirection, yDirection); } else { super.setVisible(false); active = false; } } } public void shot(int w, int h) { active = true; this.setRefPixelPosition(w, h); this.setVisible(true); } public void shot2(int w, int h) { active = true; this.setRefPixelPosition(w, h); this.setVisible(true); } public boolean isAppear() { return active; } public void destroy() { super.setVisible(false); active = false; }}here is my canvas.javapackage com;import java.io.IOException;import javax.microedition.lcdui.Graphics;import javax.microedition.lcdui.game.GameCanvas;public class MyCanvas extends GameCanvas implements Runnable { protected GameManager gameManager; protected boolean running; private int tick = 0; private static int width; private static int height; private int mDelay = 20; private int cps = 0; private int cyclesThisSecond = 0; private long lastCPSTime = 0; protected MyCanvas() throws Exception { super(true); gameManager = new GameManager(5, 5, getHeight() - 10, getWidth() - 10, this); } public void run() { while (running) { // draw graphics render(getGraphics()); // advance to next graphics // tick += 5; // System.out.println("tick " + tick); // System.out.println("System.currentTimeMillis() " // + System.currentTimeMillis() + " lastCPSTime " // + lastCPSTime); //System.out.println("cps "+cyclesThisSecond); if (System.currentTimeMillis() - lastCPSTime > 1000) { lastCPSTime = System.currentTimeMillis(); cps = cyclesThisSecond; cyclesThisSecond = 0; } else { //cyclesThisSecond++; // System.out.println("cyclesThisSecond " + cyclesThisSecond); } advanced(tick+=5); // display flushGraphics(); try { Thread.sleep(mDelay); } catch (InterruptedException ie) { } } } public void advanced(int ticks) { // advance to next game canvas gameManager.advanced(ticks); this.render(getGraphics()); } public void start() { this.running = true; Thread t = new Thread(this); t.start(); } public void stop() { running = false; } public void render(Graphics g) { width = getWidth(); height = getHeight(); // Clear the canvas g.setColor(0, 0, 50); g.fillRect(0, 0, width - 1, height - 1); // draw border // draw border g.setColor(200, 0, 0); g.drawRect(0, 0, width - 1, height - 1); // draw game canvas gameManager.paint(g); }}Quote:
Original post by Lord_Evil
OK, first, please post code enclosed by [source] tags. Wonder why your previous code appears in those nice scrollable boxes that makes reading it easier? I guess Zahlmann added those tags for you [smile]
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