在我调用的类[TinyDebug]中的showDebugWindow（）方法中，即使输入正确的密码后，JOptionPane.showInputDialog（）也会被调用两次，为什么会这样？
此外，此代码正在我的Game类中的update（）方法执行，该方法每秒调用一次。
请看下面的问题代码集。
游戏：
public class Game extends TinyPixel {
private static Game game;
private static KeyManager keyManager;
private static MouseManager mouseManager;
private static GameStateManager sManager;
private boolean isRunning;
private int targetTime;
private final int frameCap = 60;
public Game(String gameTitle, String gameVersion, int gameWidth, int gameRatio, int gameScale) {
super(gameTitle, gameVersion, gameWidth, gameRatio, gameScale);
init();
}
public void init() {
Utilities.printMessage("\t\t-[" + Library.gameTitle + "]-" +
"\n[Game Version]: " + gameVersion +
"\n[Unique Build Number]: " + Utilities.generateCode(16));
ResourceLoader.loadImages();
ResourceLoader.loadMusic();
ResourceLoader.loadSound();
ResourceLoader.loadFonts();
keyManager = new KeyManager(this);
mouseManager = new MouseManager(this);
sManager = new GameStateManager(this);
}
@Override public void update() {
sManager.update();
mouseManager.update();
}
@Override public void render() {
BufferStrategy bs = tinyWindow.getCanvas().getBufferStrategy();
if (bs == null) {
tinyWindow.getCanvas().createBufferStrategy(3);
tinyWindow.getCanvas().requestFocus();
return;
}
Graphics g = bs.getDrawGraphics();
g.clearRect(0, 0, gameWidth, gameHeight);
sManager.render(g);
g.dispose();
bs.show();
}
public void start() {
if(isRunning) return;
isRunning = true;
new Thread(this, gameTitle + " " + gameVersion).start();
}
public void stop() {
if(!isRunning) return;
isRunning = false;
}
@Override public void run() {
isRunning = true;
targetTime = 1000 / frameCap;
long start = 0;
long elapsed = 0;
long wait = 0;
while (isRunning) {
start = System.nanoTime();
update();
render();
elapsed = System.nanoTime() - start;
wait = targetTime - elapsed / 1000000;
if (wait < 0) wait = 5;
try {
Thread.sleep(wait);
} catch (InterruptedException e) {
Utilities.printErrorMessage("Failed to Load " + gameTitle + " " + gameVersion);
}
}
stop();
}
public static KeyManager getKeyManager() {
return keyManager;
}
public static GameStateManager getsManager() {
return sManager;
}
public static Game getGame() {
return game;
}
}
GameLauncher：
public class GameLauncher {
public static void main(String[] args) {
new Game(Library.gameTitle, Library.gameVersion, 640, TinyPixel.Square, 1).start();
}
}
GameStateManager：
public class GameStateManager {
private int numStates = 3;
public static final int MenuState = 0;
public static final int LoadingState = 1;
public static final int GameState = 2;
public static GameState[] gStates;
private static int currentState;
private static String currentMusic;
protected Game game;
public GameStateManager(Game game) {
this.game = game;
init();
}
private void init() {
gStates = new GameState[numStates];
currentState = MenuState;
//currentMusic = Library.backgroundMusic;
//TinyPlayer.playMusic(currentMusic);
loadState(currentState);
}
private void loadState(int gState) {
if (gState == MenuState) gStates[gState] = new MenuState(game, this);
if (gState == LoadingState) gStates[gState] = new LoadingState(game, this);
if (gState == GameState) gStates[gState] = new PlayState(game, this);
}
private void unloadState(int gState) {
gStates[gState] = null;
}
public void setState(int gState) {
unloadState(gState);
currentState = gState;
loadState(gState);
}
private void changeMusic(String key) {
if (currentMusic.equals(key)) return;
TinyPlayer.stopMusic(currentMusic);
currentMusic = key;
TinyPlayer.loop(currentMusic);
}
public void update() {
try {
gStates[currentState].update();
} catch (Exception e) {}
}
public void render(Graphics g) {
try {
gStates[currentState].render(g);
} catch (Exception e) {}
}
public static int getCurrentState() {
return currentState;
}
}
游戏状态：
public abstract class GameState {
protected Game game;
protected GameStateManager sManager;
public GameState(Game game, GameStateManager sManager) {
this.game = game;
this.sManager = sManager;
init();
}
public abstract void init();
public abstract void update();
public abstract void render(Graphics g);
}
MenuState：
public class MenuState extends GameState {
private Rectangle playBtn, exitBtn;
private TinyDebug tinyDebug;
public static final Color DEFAULT_COLOR = new Color(143, 48, 223);
public MenuState(Game game, GameStateManager sManager) {
super(game, sManager);
init();
}
public void init() {
tinyDebug = new TinyDebug();
int xOffset = 90, yOffset = 70;
playBtn = new Rectangle(Game.getWidth() / 2 - xOffset, Game.getHeight() / 2, 180, 40);
exitBtn = new Rectangle(Game.getWidth() / 2 - xOffset, Game.getHeight() / 2 + yOffset, 180, 40);
}
public void update() {
if (Game.getKeyManager().debug.isPressed()) {
Game.getKeyManager().toggleKey(KeyEvent.VK_Q, true);
tinyDebug.showDebugWindow();
}
if (Game.getKeyManager().space.isPressed()) {
Game.getKeyManager().toggleKey(KeyEvent.VK_SPACE, true);
sManager.setState(GameStateManager.LoadingState);
}
if (Game.getKeyManager().exit.isPressed()) {
Game.getKeyManager().toggleKey(KeyEvent.VK_ESCAPE, true);
System.exit(0);
}
}
public void render(Graphics g) {
//Render the Background
g.drawImage(Library.menuBackground, 0, 0, Game.getWidth(), Game.getHeight(), null);
//Render the Game Version
TinyFont.drawFont(g, new Font(Library.gameFont, Font.PLAIN, 8), Color.white, "Version: " + Library.gameVersion, Game.getWidth() / 2 + 245, Game.getHeight() - 30);
//Render the Social Section
TinyFont.drawFont(g, new Font(Library.gameFont, Font.PLAIN, 8), Color.white, "@nickadamou", 20, Game.getHeight() - 60);
TinyFont.drawFont(g, new Font(Library.gameFont, Font.PLAIN, 8), Color.white, "@nicholasadamou", 20, Game.getHeight() - 45);
TinyFont.drawFont(g, new Font(Library.gameFont, Font.PLAIN, 8), Color.white, "Ever Tried? Ever Failed? No Matter. Try Again. Fail Again. Fail Better.", 20, Game.getHeight() - 30);
//Render the Debug Section
tinyDebug.renderDebug(g);
g.setColor(Color.white);
g.drawRect(playBtn.x, playBtn.y, playBtn.width, playBtn.height);
g.drawRect(exitBtn.x, exitBtn.y, exitBtn.width, exitBtn.height);
TinyFont.drawFont(g, new Font(Library.gameFont, Font.PLAIN, 14), Color.white, "Play Game [space]", playBtn.x + 10, playBtn.y + 25);
TinyFont.drawFont(g, new Font(Library.gameFont, Font.PLAIN, 14), Color.white, "Exit Game [esc]", exitBtn.x + 20, exitBtn.y + 25);
}
}
的KeyManager：
public class KeyManager implements KeyListener {
private Game game;
public KeyManager(Game game) {
this.game = game;
game.getTinyWindow().getCanvas().addKeyListener(this);
}
public class Key {
private int amtPressed = 0;
private boolean isPressed = false;
public int getAmtPressed() {
return amtPressed;
}
public boolean isPressed() {
return isPressed;
}
public void toggle(boolean isPressed) {
this.isPressed = isPressed;
if (isPressed) amtPressed++;
}
}
public Key up = new Key();
public Key down = new Key();
public Key left = new Key();
public Key right = new Key();
public Key space = new Key();
public Key debug = new Key();
public Key exit = new Key();
public void keyPressed(KeyEvent key) {
toggleKey(key.getKeyCode(), true);
}
public void keyReleased(KeyEvent key) {
toggleKey(key.getKeyCode(), false);
}
public void keyTyped(KeyEvent e) {}
public void toggleKey(int keyCode, boolean isPressed) {
game.getTinyWindow().getFrame().requestFocus();
game.getTinyWindow().getCanvas().requestFocus();
if (keyCode == KeyEvent.VK_W || keyCode == KeyEvent.VK_UP) {
up.toggle(isPressed);
}
if (keyCode == KeyEvent.VK_S || keyCode == KeyEvent.VK_DOWN) {
down.toggle(isPressed);
}
if (keyCode == KeyEvent.VK_A || keyCode == KeyEvent.VK_LEFT) {
left.toggle(isPressed);
}
if (keyCode == KeyEvent.VK_D || keyCode == KeyEvent.VK_RIGHT) {
right.toggle(isPressed);
}
if (keyCode == KeyEvent.VK_SPACE) {
space.toggle(isPressed);
}
if (keyCode == KeyEvent.VK_Q) {
debug.toggle(isPressed);
}
if (keyCode == KeyEvent.VK_ESCAPE) {
exit.toggle(isPressed);
}
}
@SuppressWarnings("unused")
private void debug(KeyEvent key) {
System.out.println("[keyCode]: " + key.getKeyCode());
}
}
TinyDebug：
public class TinyDebug {
private final String appTitle = Library.gameTitle;
private String tinyPassword, tinyBuildCode;
private boolean isAllowedDebugging = false;
private boolean isShowingTinyText = false;
public TinyDebug() {
tinyPassword = "test123"; // - Standard Password (Non-Renewable)
//tinyPassword = Utilities.generateCode(16); // - Stronger Password (Renewable)
writePasswordToFile(tinyPassword);
tinyBuildCode = Utilities.generateCode(16);
}
//TODO: This method invokes JOptionPane.showInputDialog() twice even after I input the correct password, why?
public void showDebugWindow() {
boolean hasRun = true;
if (hasRun) {
Clipboard cBoard = Toolkit.getDefaultToolkit().getSystemClipboard();
cBoard.setContents(new StringSelection(tinyPassword), null);
if (isAllowedDebugging() && isShowingTinyText()) return;
String userPassword = JOptionPane.showInputDialog("Input Password to Enter [TinyDebug].");
do {
if (userPassword.equals(tinyPassword)) {
JOptionPane.showMessageDialog(null, "[" + appTitle + "]: The Password Entered is Correct.", appTitle + " Message", JOptionPane.PLAIN_MESSAGE);
isAllowedDebugging(true);
isShowingTinyText(true);
break;
} else {
JOptionPane.showMessageDialog(null, "[Error Code]: " + Utilities.generateCode(16) + "\n[Error]: Password is Incorrect.", appTitle + " Error Message", JOptionPane.ERROR_MESSAGE);
System.exit(0);
}
} while (userPassword != null || userPassword.trim().isEmpty() != true);
}
hasRun = false;
}
@SuppressWarnings("unused")
public void renderDebug(Graphics g) {
if (isAllowedDebugging()) {
//TODO: Render Debug Information.
TinyFont.drawFont(g, new Font(Library.gameFont, Font.PLAIN, 8), Color.white, "Tiny Pixel [Debug]", 5, 10);
TinyFont.drawFont(g, new Font(Library.gameFont, Font.PLAIN, 8), Color.white, "#. [Options are Shown Here]", 10, 25);
if (isShowingTinyText()) {
String debugHeader = appTitle + " Information";
String debugPasswordField = appTitle + " Information:";
String debugBuildNumber = appTitle + " Unique Build #: " + getTinyBuildCode();
}
}
}
//TODO: This method prints the [Utilities.printMessage(appTitle + ": [tinyPassword] Generated and Stored @ FilePath: \n" + logFile.getAbsolutePath());] twice, why?
private void writePasswordToFile(String tinyPassword) {
BufferedWriter bWriter = null;
try {
File logFile = new File("tinyPassword.txt");
Utilities.printMessage(appTitle + ": [tinyPassword] Generated and Stored @ FilePath: \n" + logFile.getAbsolutePath());
bWriter = new BufferedWriter(new FileWriter(logFile));
bWriter.write(appTitle + " debug Password: " + tinyPassword);
} catch (Exception e) {
Utilities.printErrorMessage("Failed to Write [tinyPassword] to File.");
} finally {
try {
bWriter.close();
} catch (Exception e) {
Utilities.printErrorMessage("Failed to Close [bWriter] Object.");
}
}
}
public String getTinyPassword() {
return tinyPassword;
}
public String getTinyBuildCode() {
return tinyBuildCode;
}
public void isShowingTinyText(boolean isShowingTinyText) {
this.isShowingTinyText = isShowingTinyText;
}
public boolean isShowingTinyText() {
return isShowingTinyText;
}
public void isAllowedDebugging(boolean isAllowedDebugging) {
this.isAllowedDebugging = isAllowedDebugging;
if (isAllowedDebugging) showDebugWindow();
}
public boolean isAllowedDebugging() {
return isAllowedDebugging;
}
}
答案 0 :(得分：1)
在showDebugWindow（）方法中，您有以下声明：
if (userPassword.equals(tinyPassword)) {
...
isAllowedDebugging(true); // Problematic statement
...
}
调用此方法：
public void isAllowedDebugging(boolean isAllowedDebugging) {
this.isAllowedDebugging = isAllowedDebugging;
if (isAllowedDebugging) showDebugWindow(); // Second call?
}
如您所见，当您设置isAllowedDebugging开关时，您也调用该方法，因此当您输入密码正确时，会发生第二次调用。