blackwhitegamecanvas.java

一个黑白棋的源代码(尚未完成

/*
 * BlackWhiteGameCanvas.java
 *
 * Created on 2007-9-28, 14:53:37
 *
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package org.yangcq.canvas;

import java.io.IOException;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.game.GameCanvas;
import javax.microedition.lcdui.game.LayerManager;
import javax.microedition.lcdui.game.TiledLayer;
import org.yangcq.controller.BlackAndWhite;
import org.yangcq.logic.chessboard.ChessboardImpl;
import org.yangcq.logic.step.Step;

/**
 *
 * @author Administrator
 */
public class BlackWhiteGameCanvas extends GameCanvas implements Runnable
{

    private BlackAndWhite midlet;
    private Graphics g;
    private boolean inputable;
    private boolean pause;
    private LayerManager lm;
    private int canvasWidth;
    private int canvasHeight;
    public static byte fps = 12;

    public BlackWhiteGameCanvas(BlackAndWhite midlet)
    {
        super(true);
        this.midlet = midlet;
        this.lm = new LayerManager();//管理图层
        this.g = this.getGraphics();//双缓冲
        this.inputable = true;
        this.pause = false;
        this.setFullScreenMode(true);
        this.canvasHeight = this.getHeight();
        this.canvasWidth = this.getWidth();
    }

    public void run()
    {
        while (!pause)
        {
            long start = System.currentTimeMillis();
            //显示棋盘
            displayChessboard();
            //处理键盘输入
            input();
            //处理计算机棋手走棋
            logic();
            long count = System.currentTimeMillis() - start;
            if (count < 1000 / fps)
            {
                try
                {
                    Thread.sleep(1000 / fps - count);
                } catch (InterruptedException ex)
                {
                    continue; //继续游戏
                }
            }
        }
    }

    private void displayChessboard()
    {

        Step[][] steps = ChessboardImpl.getChessboard().getBoard();
        for (int i = 0; i < steps.length; i++)
        {
            for (int j = 0; j < steps.length; j++)
            {

            }
        }
        lm.paint(g, 0, 0);
        this.flushGraphics();
        this.serviceRepaints();
    }

    private void input()
    {
        int keyStates = this.getKeyStates();
        if ((keyStates & GameCanvas.LEFT_PRESSED) != 0)
        {
            System.out.println("待处理左键按下");
        } else if ((keyStates & GameCanvas.RIGHT_PRESSED) != 0)
        {
            System.out.println("待处理右键按下");
        } else if ((keyStates & GameCanvas.DOWN_PRESSED) != 0)
        {
        //
        } else if ((keyStates & GameCanvas.UP_PRESSED) != 0)
        {
        //
        } else if ((keyStates & GameCanvas.FIRE_PRESSED) != 0)
        {
        //
        }
    }

    private void logic()
    {
        //看游戏是否结束
        this.pause = true;
    }
}