編集履歴

回答編集履歴

showAndFocus

2024/05/24 11:11

投稿

スコア13170

test CHANGED Viewed

@@ -30,8 +30,8 @@
     PausePanel pausePanel = new PausePanel(gamePanel::resume); //esc が押されたら gamePanel.resume() を呼ぶ
     FinishedPanel finishedPanel = new FinishedPanel(gamePanel::start); //enter が押されたら gamePane.start() を呼ぶ
-    gamePanel.setPauseListener(() -> pausePanel.setVisible(true)); //esc が押されたら pausePanel を表示
+    gamePanel.setPauseListener(pausePanel::showAndFocus); //esc が押されたら pausePanel.showAndFocus() を呼ぶ
-    gamePanel.setFinishedListener(finishedPanel::show); //finish したら finishedPanel.show(String,int) を呼ぶ
+    gamePanel.setFinishedListener(finishedPanel::showAndFocus); //finish したら finishedPanel.showAndFocus(String,int) を呼ぶ
     setLayout(new OverlayLayout(getContentPane())); //全てを重ねる
     add(finishedPanel); //一番上
@@ -144,13 +144,11 @@
     setBackground(bg);
     setFocusable(true);
     setVisible(false);
-    addComponentListener(new ComponentAdapter() {
-      @Override
+  }
-      public void componentShown(ComponentEvent e) {
+  void showAndFocus() {
+    setVisible(true);
-        requestFocus();
+    requestFocus();
-      }
-    });
   }
   protected JLabel addLabel(String text, Color fg, Font font, Object constraints) {
@@ -211,10 +209,10 @@
     addKeyEvent(KeyEvent.VK_ENTER, KeyAction.PRESSED, restartListener);
   }
-  void show(String message, int score) {
+  void showAndFocus(String message, int score) {
     messageLabel.setText(message);
     scoreLabel.setText("Score: " + score);
-    setVisible(true);
+    showAndFocus();
   }
 }

FinishedPanel に GAME OVER/Victrory 表示を追加、OverlapPanel 追加、StringDrawer 追加等

2024/05/23 17:06

投稿

jimbe

スコア13170

test CHANGED Viewed

@@ -13,7 +13,7 @@
 import java.awt.*;
 import java.awt.event.*;
 import java.util.Random;
-import java.util.function.Consumer;
+import java.util.function.BiConsumer;
 import javax.swing.*;
@@ -31,10 +31,9 @@
     FinishedPanel finishedPanel = new FinishedPanel(gamePanel::start); //enter が押されたら gamePane.start() を呼ぶ
     gamePanel.setPauseListener(() -> pausePanel.setVisible(true)); //esc が押されたら pausePanel を表示
-    gamePanel.setFinishedListener(finishedPanel::setScoreAndVisible); //finish したら finishedPanel.setScoreAndVisible(int) を呼ぶ
+    gamePanel.setFinishedListener(finishedPanel::show); //finish したら finishedPanel.show(String,int) を呼ぶ
-    Container contentPane = getContentPane();
-    contentPane.setLayout(new OverlayLayout(contentPane)); //全てを重ねる
+    setLayout(new OverlayLayout(getContentPane())); //全てを重ねる
     add(finishedPanel); //一番上
     add(pausePanel);
     add(gamePanel); //一番下
@@ -44,11 +43,29 @@
   }
 }
+class StringDrawer {
+  private Font font;
+  private FontMetrics fontMetrics;
+  StringDrawer(JComponent comp, Font font) {
+    this.font = font;
+    fontMetrics = comp.getFontMetrics(font);
+  }
+  void drawInCenter(Graphics g, String s, JComponent comp) {
+    int x = (comp.getWidth() - fontMetrics.stringWidth(s)) / 2;
+    int y = (comp.getHeight() - fontMetrics.getHeight()) / 2;
+    draw(g, s, x, y);
+  }
+  void draw(Graphics g, String s, int x, int y) {
+    g.setFont(font);
+    g.drawString(s, x, y + fontMetrics.getAscent());
+  }
+}
 class GamePanel extends JPanel {
-  private Consumer<Integer> finishedListener;
+  private BiConsumer<String,Integer> finishedListener;
   private Runnable pauseListener;
-  private Font font1, font2;
+  private StringDrawer sd1, sd2;
-  private FontMetrics fontMetrics1, fontMetrics2;
   private Timer timer;
   private Random random = new Random();
   private int keycode, value, bar;
@@ -60,10 +77,8 @@
     setFocusable(true);
     setBackground(Color.CYAN); //重なりを分かり易くするため色を付けてみる
-    font1 = getFont();
-    fontMetrics1 = getFontMetrics(font1);
+    sd1 = new StringDrawer(this, getFont());
-    font2 = font1.deriveFont(Font.BOLD, 50f);
+    sd2 = new StringDrawer(this, getFont().deriveFont(Font.BOLD, 50f));
-    fontMetrics2 = getFontMetrics(font2);
     addKeyListener(new KeyAdapter() {
       @Override
@@ -85,7 +100,7 @@
     });
   }
-  void setFinishedListener(Consumer<Integer> listener) {
+  void setFinishedListener(BiConsumer<String,Integer> listener) {
     finishedListener = listener;
   }
   void setPauseListener(Runnable listener) {
@@ -103,7 +118,7 @@
     timer = new Timer(50, e -> {
       if(value == 0 || value == 100) { //終わり判定
         timer.stop();
-        if(finishedListener != null) finishedListener.accept(value); //テキトウにスコアとして value を渡してみる
+        if(finishedListener != null) finishedListener.accept(value==0?"GAME OVER":"Victory", value); //テキトウに渡してみる
         return;
       }
       if(keycode == KeyEvent.VK_LEFT) value -= 1;
@@ -118,88 +133,16 @@
   public void paintComponent(Graphics g) {
     super.paintComponent(g);
-    String s = "=".repeat(bar);
+    sd1.draw(g, "=".repeat(bar), 10, 10);
-    int x = 0 + 10;
-    int y = fontMetrics1.getAscent() + 10;
-    g.setFont(font1);
-    g.drawString(s, x, y);
-    s = "← " + value + " →";
+    sd2.drawInCenter(g, "← " + value + " →", this);
-    x = (getWidth() - fontMetrics2.stringWidth(s)) / 2;
-    y = (getHeight() - fontMetrics2.getHeight()) / 2 + fontMetrics2.getAscent();
-    g.setFont(font2);
-    g.drawString(s, x, y);
-  }
+  }
-}
+}
-class FinishedPanel extends JPanel {
+abstract class OverlapPanel extends JPanel {
-  private JLabel scoreLabel;
+  OverlapPanel(Color bg) {
-  FinishedPanel(Runnable restartListener) {
     super(new GridBagLayout());
-    if(restartListener == null) throw new IllegalArgumentException("Required restartListener");
-    setBackground(new Color(0,0,0,180)); //半透明
-    Font font = new Font("Verdana", Font.BOLD, 18);
-    GridBagConstraints gbc = new GridBagConstraints();
-    gbc.gridx = 0;
-    scoreLabel = new JLabel();
-    scoreLabel.setForeground(Color.WHITE);
-    scoreLabel.setFont(font);
-    add(scoreLabel, gbc);
-    add(Box.createVerticalStrut(30), gbc);
-    JLabel restartLabel = new JLabel("Press ENTER to restart");
-    restartLabel.setForeground(Color.GREEN);
-    restartLabel.setFont(font);
-    add(restartLabel, gbc);
-    addKeyListener(new KeyAdapter() {
-      @Override
-      public void keyPressed(KeyEvent e) {
-        if(e.getKeyCode() == KeyEvent.VK_ENTER) {
-          setVisible(false);
+    setBackground(bg);
-          restartListener.run();
-        }
-      }
-    });
-    setVisible(false);
-  }
-  void setScoreAndVisible(int score) {
-    scoreLabel.setText("Score: " + score);
-    setVisible(true);
-    requestFocus();
-  }
-}
-class PausePanel extends JPanel {
-  PausePanel(Runnable resumeListener) {
-    super(new BorderLayout());
-    if(resumeListener == null) throw new IllegalArgumentException("Required resumeListener");
-    setBackground(new Color(100,100,100,180)); //半透明
     setFocusable(true);
-    JLabel label = new JLabel("PAUSE");
-    label.setHorizontalAlignment(SwingConstants.CENTER);
-    label.setForeground(Color.YELLOW);
-    label.setFont(new Font("Monospaced", Font.BOLD, 25));
-    add(label, BorderLayout.CENTER);
-    addKeyListener(new KeyAdapter() {
-      @Override
-      public void keyReleased(KeyEvent e) {
-        if(e.getKeyCode() == KeyEvent.VK_ESCAPE) {
-          setVisible(false);
-          resumeListener.run();
-        }
-      }
-    });
     setVisible(false);
     addComponentListener(new ComponentAdapter() {
@@ -209,7 +152,81 @@
       }
     });
   }
+  protected JLabel addLabel(String text, Color fg, Font font, Object constraints) {
+    JLabel label = new JLabel(text);
+    label.setForeground(fg);
+    label.setFont(font);
+    add(label, constraints);
+    return label;
+  }
+  protected enum KeyAction {
+    PRESSED {
+      KeyListener createKeyListener(JComponent comp, int keyCode, Runnable listener) {
+        return new KeyAdapter() {
+          @Override
+          public void keyPressed(KeyEvent e) { if(e.getKeyCode() == keyCode) action(comp, listener); }
+        };
+      }
+    },
+    RELEASED {
+      KeyListener createKeyListener(JComponent comp, int keyCode, Runnable listener) {
+        return new KeyAdapter() {
+          @Override
+          public void keyReleased(KeyEvent e) { if(e.getKeyCode() == keyCode) action(comp, listener); }
+        };
+      }
+    };
+    abstract KeyListener createKeyListener(JComponent comp, int keyCode, Runnable listener);
+    private static void action(JComponent comp, Runnable listener) {
+      comp.setVisible(false);
+      listener.run();
+    }
+  }
+  protected void addKeyEvent(int keyCode, KeyAction keyAction, Runnable listener) {
+    addKeyListener(keyAction.createKeyListener(this, keyCode, listener));
+  }
+}
+class FinishedPanel extends OverlapPanel {
+  private JLabel messageLabel, scoreLabel;
+  FinishedPanel(Runnable restartListener) {
+    super(new Color(0,0,0,180)); //半透明
+    Font font = new Font("Verdana", Font.BOLD, 18);
+    GridBagConstraints gbc = new GridBagConstraints();
+    gbc.gridx = 0;
+    messageLabel = addLabel(null, Color.WHITE, font, gbc);
+    add(Box.createVerticalStrut(50), gbc);
+    scoreLabel = addLabel(null, Color.WHITE, font, gbc);
+    add(Box.createVerticalStrut(30), gbc);
+    addLabel("Press ENTER to restart", Color.GREEN, font, gbc);
+    addKeyEvent(KeyEvent.VK_ENTER, KeyAction.PRESSED, restartListener);
+  }
+  void show(String message, int score) {
+    messageLabel.setText(message);
+    scoreLabel.setText("Score: " + score);
+    setVisible(true);
+  }
+}
+class PausePanel extends OverlapPanel {
+  PausePanel(Runnable resumeListener) {
+    super(new Color(100,100,100,180)); //白っぽい半透明
+    addLabel("PAUSE", Color.YELLOW, new Font("Monospaced", Font.BOLD, 25), null);
+    addKeyEvent(KeyEvent.VK_ESCAPE, KeyAction.RELEASED, resumeListener);
+  }
 }
 ```
 ![一時停止時画面](https://ddjkaamml8q8x.cloudfront.net/questions/2024-05-23/e2c13bd9-d3d3-473d-be16-35747618d116.png)
-![フィニッシュ時画面](https://ddjkaamml8q8x.cloudfront.net/questions/2024-05-23/f706f59d-59c5-4bca-b69b-8ec720547064.png)
+![フィニッシュ時画面(Victory)](https://ddjkaamml8q8x.cloudfront.net/questions/2024-05-24/18664310-69c1-4dcf-959b-aa8ea788618c.png)

PanelsFrame.java を追加

2024/05/22 19:59

投稿

jimbe

スコア13170

test CHANGED Viewed

@@ -1,2 +1,215 @@
 Swing の表示は全て paintComponent で行います。
 キー操作によって表示を変えるのなら、表示要因を変更したうえで repaint 等を呼んで Swing に表示を更新して貰う形になります。
+---
+質問へのコメントで提案させて頂きましたが、ゲームパネル・フィニッシュパネル・一時停止パネルを用意して重ねて置き、状況によって表示を切り替える形を作って見ました。
+こうするとゲームパネルの paintComponent 等から全体の状況別の処理切替が無くなります。
+一応ゲームパネルはそれっぽく動いている状態を見れるように、左上に (Timer が動いていることを示す)ランダムに動き続けるバーと、左右矢印キーで数値を増減できる数値の表示を置き、数値が 0 か 100 になったらフィニッシュとしてその数値をスコアとして表示するようにしてみました。
+フィニッシュ後は ENTER で再スタート、ゲーム中は ESC で一時停止/復帰します。
+PanelsFrame.java
+```java
+import java.awt.*;
+import java.awt.event.*;
+import java.util.Random;
+import java.util.function.Consumer;
+import javax.swing.*;
+public class PanelsFrame extends JFrame {
+  public static void main(String[] args) {
+    SwingUtilities.invokeLater(() -> new PanelsFrame().setVisible(true));
+  }
+  PanelsFrame() {
+    super("PanelsFrame");
+    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+    GamePanel gamePanel = new GamePanel();
+    PausePanel pausePanel = new PausePanel(gamePanel::resume); //esc が押されたら gamePanel.resume() を呼ぶ
+    FinishedPanel finishedPanel = new FinishedPanel(gamePanel::start); //enter が押されたら gamePane.start() を呼ぶ
+    gamePanel.setPauseListener(() -> pausePanel.setVisible(true)); //esc が押されたら pausePanel を表示
+    gamePanel.setFinishedListener(finishedPanel::setScoreAndVisible); //finish したら finishedPanel.setScoreAndVisible(int) を呼ぶ
+    Container contentPane = getContentPane();
+    contentPane.setLayout(new OverlayLayout(contentPane)); //全てを重ねる
+    add(finishedPanel); //一番上
+    add(pausePanel);
+    add(gamePanel); //一番下
+    pack();
+    gamePanel.start();
+  }
+}
+class GamePanel extends JPanel {
+  private Consumer<Integer> finishedListener;
+  private Runnable pauseListener;
+  private Font font1, font2;
+  private FontMetrics fontMetrics1, fontMetrics2;
+  private Timer timer;
+  private Random random = new Random();
+  private int keycode, value, bar;
+  GamePanel() {
+    super(null);
+    setSize(400, 400);
+    setPreferredSize(getSize());
+    setFocusable(true);
+    setBackground(Color.CYAN); //重なりを分かり易くするため色を付けてみる
+    font1 = getFont();
+    fontMetrics1 = getFontMetrics(font1);
+    font2 = font1.deriveFont(Font.BOLD, 50f);
+    fontMetrics2 = getFontMetrics(font2);
+    addKeyListener(new KeyAdapter() {
+      @Override
+      public void keyPressed(KeyEvent e) {
+        int kc = e.getKeyCode();
+        if(kc == KeyEvent.VK_LEFT || kc == KeyEvent.VK_RIGHT) keycode = kc;
+      }
+      @Override
+      public void keyReleased(KeyEvent e) {
+        int kc = e.getKeyCode();
+        if(kc == KeyEvent.VK_ESCAPE) pause();
+        if(kc == keycode) keycode = 0;
+      }
+      private void pause() {
+        timer.stop();
+        keycode = 0;
+        if(pauseListener != null) pauseListener.run();
+      }
+    });
+  }
+  void setFinishedListener(Consumer<Integer> listener) {
+    finishedListener = listener;
+  }
+  void setPauseListener(Runnable listener) {
+    pauseListener = listener;
+  }
+  void start() {
+    keycode = 0;
+    value = 50;
+    resume();
+  }
+  void resume() {
+    requestFocus();
+    timer = new Timer(50, e -> {
+      if(value == 0 || value == 100) { //終わり判定
+        timer.stop();
+        if(finishedListener != null) finishedListener.accept(value); //テキトウにスコアとして value を渡してみる
+        return;
+      }
+      if(keycode == KeyEvent.VK_LEFT) value -= 1;
+      if(keycode == KeyEvent.VK_RIGHT) value += 1;
+      bar = random.nextInt(10); //タイマーが動いているかを確認する為の表示
+      repaint();
+    });
+    timer.start();
+  }
+  @Override
+  public void paintComponent(Graphics g) {
+    super.paintComponent(g);
+    String s = "=".repeat(bar);
+    int x = 0 + 10;
+    int y = fontMetrics1.getAscent() + 10;
+    g.setFont(font1);
+    g.drawString(s, x, y);
+    s = "← " + value + " →";
+    x = (getWidth() - fontMetrics2.stringWidth(s)) / 2;
+    y = (getHeight() - fontMetrics2.getHeight()) / 2 + fontMetrics2.getAscent();
+    g.setFont(font2);
+    g.drawString(s, x, y);
+  }
+}
+class FinishedPanel extends JPanel {
+  private JLabel scoreLabel;
+  FinishedPanel(Runnable restartListener) {
+    super(new GridBagLayout());
+    if(restartListener == null) throw new IllegalArgumentException("Required restartListener");
+    setBackground(new Color(0,0,0,180)); //半透明
+    Font font = new Font("Verdana", Font.BOLD, 18);
+    GridBagConstraints gbc = new GridBagConstraints();
+    gbc.gridx = 0;
+    scoreLabel = new JLabel();
+    scoreLabel.setForeground(Color.WHITE);
+    scoreLabel.setFont(font);
+    add(scoreLabel, gbc);
+    add(Box.createVerticalStrut(30), gbc);
+    JLabel restartLabel = new JLabel("Press ENTER to restart");
+    restartLabel.setForeground(Color.GREEN);
+    restartLabel.setFont(font);
+    add(restartLabel, gbc);
+    addKeyListener(new KeyAdapter() {
+      @Override
+      public void keyPressed(KeyEvent e) {
+        if(e.getKeyCode() == KeyEvent.VK_ENTER) {
+          setVisible(false);
+          restartListener.run();
+        }
+      }
+    });
+    setVisible(false);
+  }
+  void setScoreAndVisible(int score) {
+    scoreLabel.setText("Score: " + score);
+    setVisible(true);
+    requestFocus();
+  }
+}
+class PausePanel extends JPanel {
+  PausePanel(Runnable resumeListener) {
+    super(new BorderLayout());
+    if(resumeListener == null) throw new IllegalArgumentException("Required resumeListener");
+    setBackground(new Color(100,100,100,180)); //半透明
+    setFocusable(true);
+    JLabel label = new JLabel("PAUSE");
+    label.setHorizontalAlignment(SwingConstants.CENTER);
+    label.setForeground(Color.YELLOW);
+    label.setFont(new Font("Monospaced", Font.BOLD, 25));
+    add(label, BorderLayout.CENTER);
+    addKeyListener(new KeyAdapter() {
+      @Override
+      public void keyReleased(KeyEvent e) {
+        if(e.getKeyCode() == KeyEvent.VK_ESCAPE) {
+          setVisible(false);
+          resumeListener.run();
+        }
+      }
+    });
+    setVisible(false);
+    addComponentListener(new ComponentAdapter() {
+      @Override
+      public void componentShown(ComponentEvent e) {
+        requestFocus();
+      }
+    });
+  }
+}
+```
+![一時停止時画面](https://ddjkaamml8q8x.cloudfront.net/questions/2024-05-23/e2c13bd9-d3d3-473d-be16-35747618d116.png)
+![フィニッシュ時画面](https://ddjkaamml8q8x.cloudfront.net/questions/2024-05-23/f706f59d-59c5-4bca-b69b-8ec720547064.png)