setkeys.java

华容道游戏源码

package huaroad;
// Download by http://www.codefans.net
import com.siemens.mp.io.*;
import java.io.IOException;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

// 按键设置
public class SetKeys extends List implements CommandListener
{
	private static final String[] lskeys = {
		"左移: ",
		"右移: ",
		"上移: ",
		"下移: ",
		"选择: "
	};
	private static String[] listKeys = { "","","","","" };
	private static byte[] sckey = { 0,0,0,0,0 };
	private static final Command cmd = new Command("返回", Command.BACK, 1);
	private Display display;
	private HRGame wingame;
	private int sindex;


	public SetKeys(byte ckey[])
	{
		super("按键设置", IMPLICIT);

		int i;
		for (i=0; i<5; i++)  // 列出可设置项
		{
			sckey[i] = ckey[i];
			listKeys[i] = lskeys[i] + exchkey(sckey[i]);
			append(listKeys[i], null);
		}

		addCommand(cmd);
	}

	public void activate(Display disp, HRGame backgame)
	{
		display = disp;
		wingame = backgame;
		show();
	}

	public void show()
	{
		display.setCurrent(this);
		setCommandListener(this);
	}

	private String exchkey(int keynum)	// 键码/键名对应关系
	{
		switch(keynum)
		{
		case Canvas.KEY_NUM0: // '0'
			return "0";
		case Canvas.KEY_NUM1: // '1'
			return "1";
		case Canvas.KEY_NUM2: // '2'
			return "2";
		case Canvas.KEY_NUM3: // '3'
			return "3";
		case Canvas.KEY_NUM4: // '4'
			return "4";
		case Canvas.KEY_NUM5: // '5'
			return "5";
		case Canvas.KEY_NUM6: // '6'
			return "6";
		case Canvas.KEY_NUM7: // '7'
			return "7";
		case Canvas.KEY_NUM8: // '8'
			return "8";
		case Canvas.KEY_NUM9: // '9'
			return "9";
		case Canvas.KEY_POUND: // '#'
			return "#";
		case Canvas.KEY_STAR: // '*'
			return "*";
		case -1:    // LSK
			return "左软键";
		case -59:   // UP
			return "上";
		case -60:   // DOWN
			return "下";
		case -11:   // DIAL
			return "通话键";
		case -12:   // HANG		// 右软键、挂机键保留
		case -4:    // -4: RSK
			return "";

		case -61:   // LEFT		// 6688
			return "左";
		case -62:   // RIGHT	// 6688
			return "右";
		case -63:
			return "侧键▼";	// 6688
		case -14:
			return "侧键-";		// 6688
		case -13:
			return "侧键+";		// 6688
		case -6:
			return "侧键●";	// 6688

		case -5:
			return "通讯录键";	// 3118

		default:
			return "";
		}
	}

	public void getkey(byte keynum)	// 显示当前按键
	{
		String keyitem = exchkey(keynum);

		if (keyitem != "")
		{
			delete(sindex);
			keyitem = lskeys[sindex] + keyitem;
			insert(sindex, keyitem, null);
			setSelectedIndex(sindex, true);
			sckey[sindex] = keynum;

			/////////////////////////////////////////////
			// write key
			try
			{
				File keyfile = new File();
				int fid = keyfile.open("CtrlKey");
				keyfile.write(fid, sckey, 0, 5);
				keyfile.close(fid);
			}
			catch(IOException ioexception) { }
			catch(NullPointerException npe){ }
			//////////////////////////////////////////////*/
		}

		show();
	}

	public void commandAction(Command command, Displayable displayable)
	{
		if(command == cmd)
			wingame.getkeys(sckey);
		else
		{
			sindex = getSelectedIndex();  // 进入按键设置画面
			String keyname;
			switch(sindex)
			{
			case 0:
				keyname = "左移";break;
			case 1:
				keyname = "右移";break;
			case 2:
				keyname = "上移";break;
			case 3:
				keyname = "下移";break;
			case 4:
				keyname = "选择/取消";break;
			default:
				keyname = "";break;
			}
			SetKeyCanvas canvas = new SetKeyCanvas(keyname);
			display.setCurrent(canvas);
			canvas.activate(this);
		}
	}

	private class SetKeyCanvas extends Canvas  // 按键设置画面
	{
		private SetKeys winList;
		private String kname;

		public SetKeyCanvas(String kn)
		{
			kname = kn;
		}

		public void paint(Graphics g)
		{
			g.drawString(
				"请按一个键作为\n“"
				+ kname + "”\n的控制键!",
				0, 0, Graphics.TOP | Graphics.LEFT);
		}

		public void activate(SetKeys klist)
		{
			winList = klist;
		}

		protected void keyPressed(int keynum)
		{
			winList.getkey((byte)keynum);
		}

	}

}