slcanvas.java

手机游戏 《扫雷》 大家快快来下呀！ 绝对的源码共享。

/*
 * 好好学习，天天向上。
 *
 * 作者：        牛潇
 * MSN：	       [e-mail]
 * E-Mail:     [e-mail]
 * QQ：          19528689
 * 
 * 创建日期：    2006-2-20
 */

import java.io.IOException;

import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;

/**
 * 主Canvas
 * 
 * @author 牛潇
 */
public class slCanvas extends Canvas
{
    public static final int STATUS_HEIGHT = 20; // 状态栏高度
    
    private slController mc;
	private int top, left; // 开始绘图的左上角坐标
    private int width, height; // 全部绘图的宽和高
    private int curRow, curCol; // 当前选中的行、列
	private Image[] known = new Image[9];
    private Image exploded, flag, mine, uncovered, unknown;

    public slCanvas()
    {
    	try {
            this.known[0] = Image.createImage("/img/blank.png");
    		this.known[1] = Image.createImage("/img/1.png");
            this.known[2] = Image.createImage("/img/2.png");
            this.known[3] = Image.createImage("/img/3.png");
            this.known[4] = Image.createImage("/img/4.png");
            this.known[5] = Image.createImage("/img/5.png");
            this.known[6] = Image.createImage("/img/6.png");
            this.known[7] = Image.createImage("/img/7.png");
            this.known[8] = Image.createImage("/img/8.png");
            this.exploded = Image.createImage("/img/exploded.png");
            this.flag = Image.createImage("/img/flag.png");
            this.mine = Image.createImage("/img/mine.png");
            this.uncovered = Image.createImage("/img/uncovered.png");
            this.unknown = Image.createImage("/img/unknown.png");
		}
		catch (IOException ex) {
			ex.printStackTrace();
		}
    }
    
    public void startNewGame(slController mc)
    {
    	this.mc = mc;
        this.width = mc.col*15;
        this.height = STATUS_HEIGHT + mc.row*15;
        this.top = (getHeight()-height) / 2;
        this.left = (getWidth()-width) / 2;
        this.curRow = 0;
        this.curCol = 0;
        repaint();
    }
    
    /**
	 * @see javax.microedition.lcdui.Canvas#keyPressed(int)
	 */
	protected void keyPressed(int keyCode)
	{
        if (mc.gameState != mc.GAME_RUNNING)
            return;
		switch (getGameAction(keyCode)) {
		case LEFT:
            if (curCol != 0) --curCol;
            else curCol = mc.col-1;
            break;
		case RIGHT:
			if (curCol != mc.col-1) ++curCol;
            else curCol = 0;
            break;
		case UP:
            if (curRow != 0) --curRow;
            else curRow = mc.row-1;
            break;
		case DOWN:
            if (curRow != mc.row-1) ++curRow;
            else curRow = 0;
            break;
		case GAME_A:
            mc.uncover(curRow, curCol);
            break;
		case GAME_B:
            mc.mark(curRow, curCol);
            break;
		default:;
        }
        repaint();
	}
    
	/**
	 * @see javax.microedition.lcdui.Displayable#paint(javax.microedition.lcdui.Graphics)
	 */
	protected void paint(Graphics g)
	{
		// 清屏并画边框
        g.setColor(0xffffff);
        g.fillRect(0, 0, getWidth(), getHeight());
        g.setColor(0x777777);
        g.drawRect(left-1, top-1, width+1, height+2);
        g.drawLine(left, top+STATUS_HEIGHT, left+width, top+STATUS_HEIGHT);
        // 画状态栏
        g.drawString("Remaining Mine: "+mc.remainingMineCount(), left+5, top+2, g.TOP|g.LEFT);
        // 画雷区
        int i,j;
        for (i=0; i<mc.row; ++i) {
        	for (j=0; j<mc.col; ++j) {
                Image img = null;
        		int pt = mc.map[i][j];
                int x = left + j*15;
                int y = top + STATUS_HEIGHT + i*15 + 1;
                if (mc.gameState == mc.GAME_RUNNING) {
                	if ((pt&mc.FLAG) != 0)
                		img = flag;
                	else if ((pt&mc.UNKNOWN) != 0)
                		img = unknown;
                	else if ((pt&mc.KNOWN) != 0)
                		img = known[mc.surroundingMineCount(i, j)];
                	else
                		img = uncovered;
                }
                else if (mc.gameState == mc.GAME_OVER) {
                	if (i==curRow && j==curCol)
                        img = exploded;
                    else if ((pt&mc.MINE) != 0)
                        img = mine;
                    else if ((pt&mc.FLAG) != 0)
                        img = flag;
                    else if ((pt&mc.UNKNOWN) != 0)
                        img = unknown;
                    else if ((pt&mc.KNOWN) != 0)
                        img = known[mc.surroundingMineCount(i, j)];
                    else
                        img = uncovered;
                }
                else if (mc.gameState == mc.GAME_WIN) {
                	if ((pt&mc.MINE) != 0)
                        img = flag;
                    else
                        img = known[mc.surroundingMineCount(i, j)];
                }
                else
                    throw new RuntimeException("unknown game state: " + mc.gameState);
                g.drawImage(img, x, y, g.LEFT|g.TOP);
                // 画当前选中部分
                if (mc.gameState == mc.GAME_RUNNING) {
                    x = left + curCol*15;
                    y = top + STATUS_HEIGHT + curRow*15 + 1;
                    g.setColor(0xcc0000);
                    g.drawRect(x, y, 14, 14);
                }
            }
        }
	}
}