tetirisgame.java

俄罗斯方块 可以方便的选择俄罗斯方块中的图形的形成个数！

/*
 * 创建日期 2004-12-16
 *
 * TODO 要更改此生成的文件的模板，请转至
 * 窗口 － 首选项 － Java － 代码样式 － 代码模板
 */
package TetirisGame;

import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;

public class TetirisGame extends MIDlet implements CommandListener,ItemStateListener {

	
	private TetrisGameCanvas sg;
	private Command startCommand = new Command("Start",Command.SCREEN,1);
	private Command exitCommand = new Command("Exit", Command.EXIT, 1);
	private Command pauseCommand = new Command("Pause", Command.SCREEN, 1);
	private final static Command okCommand = new Command("OK", Command.OK , 1);
	private Form mainForm;
	private ChoiceGroup group ;
	public static int i=0;

	public TetirisGame() {
		mainForm = new Form("Choice Group");
		String[] stringArray = { "一种图形", "二种图形", "三种图形", "四种图形" };
		group =	new ChoiceGroup("Pop-Up", ChoiceGroup.POPUP , stringArray,null);
        mainForm.append(group);
        mainForm.addCommand(okCommand);
        mainForm.setCommandListener(this);
        mainForm.setItemStateListener(this);
        Display.getDisplay(this).setCurrent(mainForm);
	}

	protected void startApp() {
	}

	protected void pauseApp() {
	}

	protected void destroyApp(boolean arg0) {
	}

	public void commandAction(Command c, Displayable d) {
		if(c==okCommand){
			sg = new TetrisGameCanvas();
			sg.addCommand(pauseCommand);
			sg.addCommand(exitCommand);
			sg.setCommandListener(this);
			//sg.start();
			Display.getDisplay(this).setCurrent(sg);
			}
		if (c == exitCommand) {			
			destroyApp(false);			
			notifyDestroyed();
		}
		if (c ==startCommand) {	
			sg.addCommand(pauseCommand);
			sg.removeCommand(startCommand);
			sg.start();
			
			
		}
		if (c == pauseCommand) {		
			sg.removeCommand(pauseCommand);
			sg.addCommand(startCommand);
			
			sg.pause();
			
			
		}
	}
	
	public void itemStateChanged(Item item){
		if( item instanceof ChoiceGroup)
        {
			i=group.getSelectedIndex();
        }
		else {
			i=0;}
		}
	
	public static int xuanze(){
		return i;
		}
	
}