gamescreen.java

J2ME的游戏原代码!希望能帮助有需要帮助的师兄弟们！

package com.centerscore.game;

import javax.microedition.lcdui.*;

class GameScreen extends Canvas {

    static final byte MENU_RESUME = 0;
    static final byte MENU_HELP = 1;
    static final byte MENU_SAVEQUIT = 2;

    static boolean g_bdrawSaving;
    static boolean g_bdrawLoading;

    int m_selectedIndex;

    private GameModel m_pGameModel;
    private GameMidlet m_pGameMidlet;


    GameScreen(GameMidlet midlet) {
        m_pGameMidlet = midlet;
        setCommandListener(m_pGameMidlet);
        m_selectedIndex = Globals.MAIN_SELECT_START;
        addCommand(m_pGameMidlet.m_cmdBack);
    }


    void setModel(GameModel pModel) {
        m_pGameModel = pModel;
    }


    protected void paint(Graphics g) {
        if (g_bdrawSaving) {
            m_pGameModel.drawSavingScreen(g);
        } else if (g_bdrawLoading) {
            m_pGameModel.drawLoadingScreen(g);
        } else {
            m_pGameModel.drawSelf(g);
        }
    }


    protected void keyReleased(int key) {
        int action = getGameAction(key);
        if (!m_pGameModel.g_bPaused) {
            m_pGameModel.handleKeyRelease(key);
        }
    }

    protected void keyPressed(int key) {

        if (!m_pGameModel.g_bPaused) {
            m_pGameModel.handleKeyPress(key);
        } else {
            switch (getGameAction(key)) {
            case Canvas.UP :
                if (m_selectedIndex > MENU_RESUME) {
                    m_selectedIndex--;
                } else {
                    m_selectedIndex = MENU_SAVEQUIT;
                }
                repaint();
            break;

            case Canvas.DOWN :
                if (m_selectedIndex < MENU_SAVEQUIT) {
                    m_selectedIndex++;
                } else {
                    m_selectedIndex = MENU_RESUME;
                }
                repaint();
            break;

            case Canvas.FIRE :
                m_pGameMidlet.commandAction(m_pGameMidlet.m_cmdSelect, this);
            break;
            }
        }
    }


    void startGame(boolean bResume, boolean bReset) {
        m_pGameModel.start(bResume, bReset);
        repaint();
        serviceRepaints();
    }


    void pauseGame() {
        if (!m_pGameModel.g_bPaused) {
            m_pGameModel.pause();
            repaint();
            serviceRepaints();
        }
    }


    protected void hideNotify() {
        // SD if (!m_pGameMidlet.g_bFinished_Game && !m_pGameModel.g_bPaused) {
        if (!m_pGameModel.g_bPaused && m_pGameModel.g_Game_Mode != Globals.MODE_GAMEOVER) {
            m_pGameMidlet.pauseGame();
        }
    }


    protected void showNotify() {
        try {
			/* Start	Modified	21-03-2003		for external events	*/
			repaint();
			serviceRepaints();
			//m_pGameMidlet.startApp();
			/* End		Modified	21-03-2003	*/
        } catch (Exception ex) {}
    }
}