這里介紹的是Game的邏輯類，主要控制游戲的動作，以及繪制。
詳細里面代碼有注釋
java 代碼
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- package org.wuhua.battleplan;
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- import java.util.Stack;
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- import javax.microedition.lcdui.Graphics;
- import javax.microedition.lcdui.Image;
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- import org.wuhua.game.GameCanvas;
- import org.wuhua.game.model.Fairy;
- import org.wuhua.game.util.Log;
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- public class Game extends GameCanvas {
- static Log log = Log.getLog("Game");
- private Hero hero;
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- private Stack balls;
- private Stack foes;
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- private Stack balst;
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- private int balstIndex;
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- private int genaratBallTime;
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- private int genaratFoeTime;
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- Game(){
- super();
- this.setFullScreenMode(true);
- }
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- void init(){
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- WIDTH = getWidth();
- HEIGHT = getHeight();
- log.debug("WIDTH=" + WIDTH);
- log.debug("hegiht=" + HEIGHT);
- this.bufferImage = Image.createImage(WIDTH, HEIGHT);
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- Platform.WIDTH = this.getWidth();
- Platform.HEIGHT = this.getHeight();
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- hero = Hero.createHero(Platform.WIDTH/2, Platform.HEIGHT -30);
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- balst = new Stack();
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- }
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- void genaratorBalst(int x, int y){
- balst.addElement(new Fairy(Resources.BLAST[0], x, y));
- balst.addElement(new Fairy(Resources.BLAST[1], x, y));
- balst.addElement(new Fairy(Resources.BLAST[2], x, y));
- balst.addElement(new Fairy(Resources.BLAST[3], x, y));
- balst.addElement(new Fairy(Resources.BLAST[4], x, y));
- }
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- void collides(){
- if(balls == null
- || foes == null)
- return ;
- for(int i = 0; i < balls.size(); i ++){
- Ball b = (Ball) balls.elementAt(i);
- for(int j =0; j < foes.size(); j ++){
- Foe f = (Foe) foes.elementAt(j);
- if(b.collidesWith(f)){
- this.genaratorBalst(f.getX(), f.getY());
- balls.removeElement(b);
- foes.removeElement(f);
- return;
- }
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- }
- }
- }
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- void drawGame(){
- if(Platform.HEIGHT < this.getHEIGHT()){
- Platform.HEIGHT = this.getHEIGHT();
- }
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- Graphics g = this.getGraphics();
- if(g == null)
- return;
- fillFullScreen(g,0x349293);
- paintHeroAndBall(g);
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- paintFoe(g);
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- paintBalst(g);
- this.flushGraphics();
- }
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- private void paintBalst(Graphics g) {
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- if(balst == null
- || balst.size() == 0)
- return;
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- Fairy bf = (Fairy) balst.elementAt(balstIndex);
- bf.paint(g);
- if(balstIndex >= 4){
- balstIndex = 0;
- balst.removeAllElements();
- }
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- balstIndex++;
- }
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- private void paintFoe(Graphics g) {
- if(foes == null)
- return ;
- for(int i=0; i < foes.size(); i++){
- Foe foe = (Foe) foes.elementAt(i);
- foe.paint(g);
- }
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- }
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- public void genaratorFoe(){
- if(this.genaratFoeTime == 5){
- FoeManager.addFoe(FoeManager.genarator());
- FoeManager.clearFoesIsOut();
- foes = FoeManager.getFoes();
- genaratFoeTime = 0;
- }
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- genaratFoeTime++;
- }
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- public void foeFly(){
- if(foes == null)
- return ;
- for(int i = 0; i < foes.size(); i++){
- Foe foe = (Foe) foes.elementAt(i);
- foe.fly();
- }
- }
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- private void paintHeroAndBall(Graphics g) {
- hero.paint(g);
- paintBalls(g);
- }
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- private void paintBalls(Graphics g) {
- if(balls == null)
- return ;
- for(int i = 0; i < balls.size(); i++){
- Ball ball = (Ball) balls.elementAt(i);
- ball.paint(g);
- }
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- }
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- public void ballFly(){
- if(balls == null)
- return ;
- for(int i = 0; i < balls.size(); i++){
- Ball ball = (Ball) balls.elementAt(i);
- ball.fly();
- }
- }
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- public void heroAction(){
- checkHeroIsExists();
- int keyCode = this.getKeyStates();
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- switch(keyCode){
- case Platform.KEY_LEFT: hero.moveLeft(); break;
- case Platform.KEY_RIGHT: hero.moveRight(); break;
- case Platform.KEY_UP: hero.moveUp(); break;
- case Platform.KEY_DOWN: hero.moveDown(); break;
- case Platform.KEY_FIRE: genaratorBall(); break;
- }
- }
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- private void genaratorBall() {
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- if(this.genaratBallTime == 3){
- checkHeroIsExists();
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- BallManager.addBall(BallManager.genarator(hero.getX(), hero.getY()));
- BallManager.clearBallsIsOut();
- balls = BallManager.getBalls();
- genaratBallTime = 0;
- }
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- genaratBallTime++;
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- }
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- private void checkHeroIsExists() {
- if(hero == null){
- throw new java.lang.NullPointerException("Hero is Null");
- }
- }
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- public void run(){
- this.collides();
- this.heroAction();
- this.ballFly();
- this.genaratorFoe();
- this.foeFly();
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- this.drawGame();
- this.setKeyStates(1000);
- }
- }
代碼就是上面的，如果有什么好的建議，請評論。下面的一課，我將介紹GameThread。 |