feat: add translation support

src/main/java/eu/midnightdust/yaytris/Settings.java

@@ -1,6 +1,7 @@
 package eu.midnightdust.yaytris;
 
 import eu.midnightdust.yaytris.util.Difficulty;
+import eu.midnightdust.yaytris.util.Language;
 import eu.midnightdust.yaytris.util.NightJson;
 
 public class Settings {
@@ -11,6 +12,7 @@ public class Settings {
     public static float guiScale = 3.f;
     public static boolean shouldScaleSpeed = true;
     public static Difficulty difficulty = Difficulty.NORMAL;
+    public static Language language = Language.ENGLISH;
 
     public static void load() {
         json.readJson();

src/main/java/eu/midnightdust/yaytris/Tetris.java

@@ -25,6 +25,7 @@ public class Tetris {
             UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
         } catch (Exception | Error e) { System.out.printf("%s: %s\n", "Error setting system look and feel", e); }
         Settings.load();
+        Translation.load(Settings.language.locale);
         HighScores.load();
         timer = new Timer("Tetris falling pieces");
         space = new Space();

src/main/java/eu/midnightdust/yaytris/Translation.java

@@ -0,0 +1,19 @@
+package eu.midnightdust.yaytris;
+
+import eu.midnightdust.yaytris.util.NightJson;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class Translation {
+    public static Map<String, String> translationMap = new HashMap<>();
+
+    public static void load(String locale) {
+        NightJson json = new NightJson(translationMap, String.format("translation/%s.json5", locale));
+        json.readJson();
+    }
+
+    public static String t(String key, Object... args) {
+        return String.format(translationMap.getOrDefault(key, key), args);
+    }
+}

src/main/java/eu/midnightdust/yaytris/ui/HighScoreMenu.java

@@ -1,12 +1,15 @@
 package eu.midnightdust.yaytris.ui;
 
 import eu.midnightdust.yaytris.HighScores;
+import eu.midnightdust.yaytris.util.CatppuccinColor;
 
 import javax.swing.*;
+import javax.swing.border.LineBorder;
 import java.awt.*;
 import java.util.ArrayList;
 import java.util.List;
 
+import static eu.midnightdust.yaytris.Translation.t;
 import static eu.midnightdust.yaytris.ui.TetrisUI.scale;
 
 public class HighScoreMenu extends JPanel {
@@ -17,7 +20,7 @@ public class HighScoreMenu extends JPanel {
         this.setBounds(x, y, width, height);
         this.setLayout(null);
 
-        this.add(new JLabel("Highscores:"));
+        this.add(new JLabel(t("highscores.title")));
 
         List<String> highscores = new ArrayList<>();
         for (String key : HighScores.scores.keySet()) {
@@ -25,11 +28,14 @@ public class HighScoreMenu extends JPanel {
         }
         highscores.sort((s1, s2) -> Integer.compare(Integer.parseInt(s2.split("–")[0].replace(" ", "")), Integer.parseInt(s1.split("–")[0].replace(" ", ""))));
         JList<String> highscoreList = new JList<>(highscores.toArray(String[]::new));
+        highscoreList.setBackground(CatppuccinColor.BASE.getColor());
+        highscoreList.setSelectionForeground(CatppuccinColor.CRUST.getColor());
         JScrollPane highscoreScrollPane = new JScrollPane(highscoreList);
+        highscoreScrollPane.setBorder(new LineBorder(CatppuccinColor.SURFACE0.getColor(), 3, true));
         this.add(highscoreScrollPane);
         highscoreScrollPane.setBounds(scale(60), scale(43), scale(100), scale(80));
 
-        JButton backButton = new JButton("Zurück");
+        JButton backButton = new JButton(t("ui.back"));
         backButton.addActionListener(ui::openMainMenu);
         backButton.setBounds(scale(60), scale(140), scale(100), scale(20));
         this.add(backButton);

src/main/java/eu/midnightdust/yaytris/ui/MainMenu.java

@@ -2,6 +2,8 @@ package eu.midnightdust.yaytris.ui;
 
 import javax.swing.*;
 
+import static eu.midnightdust.yaytris.Translation.t;
+
 public class MainMenu extends AbstractMenu {
     final TetrisUI ui;
 
@@ -10,19 +12,19 @@ public class MainMenu extends AbstractMenu {
         this.setBounds(x, y, width, height);
         this.setLayout(null);
 
-        JButton startButton = new JButton("Start");
+        JButton startButton = new JButton(t("menu.start"));
         startButton.addActionListener(ui::startGame);
         this.add(startButton);
 
-        JButton settingsButton = new JButton("Einstellungen");
+        JButton settingsButton = new JButton(t("menu.settings"));
         settingsButton.addActionListener(ui::openSettings);
         this.add(settingsButton);
 
-        JButton highscoreButton = new JButton("Highscores");
+        JButton highscoreButton = new JButton(t("menu.highscores"));
         highscoreButton.addActionListener(ui::openHighscores);
         this.add(highscoreButton);
 
-        JButton leaveButton = new JButton("Spiel verlassen");
+        JButton leaveButton = new JButton(t("menu.exit"));
         leaveButton.addActionListener(e -> System.exit(0));
         this.add(leaveButton);
     }

src/main/java/eu/midnightdust/yaytris/ui/ScoreMenu.java

@@ -8,6 +8,7 @@ import java.awt.*;
 import java.time.LocalTime;
 import java.time.format.DateTimeFormatter;
 
+import static eu.midnightdust.yaytris.Translation.t;
 import static eu.midnightdust.yaytris.ui.TetrisUI.scale;
 
 public class ScoreMenu extends AbstractMenu {
@@ -32,22 +33,22 @@ public class ScoreMenu extends AbstractMenu {
         this.gameOverLabel = new JLabel();
         this.add(gameOverLabel);
 
-        this.currentScoreLabel = new JLabel("Score: 0");
+        this.currentScoreLabel = new JLabel(t("game.score", "0"));
         this.add(currentScoreLabel);
 
-        this.currentLevelLabel = new JLabel("Level: 0");
+        this.currentLevelLabel = new JLabel(t("game.level", "0"));
         this.add(currentLevelLabel);
 
-        this.currentTimeLabel = new JLabel("Zeit: 00:00");
+        this.currentTimeLabel = new JLabel(t("game.time", "00:00"));
         this.add(currentTimeLabel);
 
-        JButton backButton = new JButton("Zurück");
+        JButton backButton = new JButton(t("ui.back"));
         backButton.addActionListener(ui::openMainMenu);
         this.add(backButton);
     }
 
     public void updateScore(int score) {
-        this.currentScoreLabel.setText(String.format("Score: %s", score));
+        this.currentScoreLabel.setText(t("game.score", score));
         this.repaint();
     }
 
@@ -55,16 +56,16 @@ public class ScoreMenu extends AbstractMenu {
         LocalTime timeElapsed = LocalTime.ofNanoOfDay(LocalTime.now().toNanoOfDay() - startingTime.toNanoOfDay());
 
         DateTimeFormatter timeFormatter = DateTimeFormatter.ofPattern(timeElapsed.getHour() > 0 ? "HH:mm:ss" : "mm:ss");
-        this.currentTimeLabel.setText(String.format("Zeit: %s", timeFormatter.format(timeElapsed)));
+        this.currentTimeLabel.setText(t("game.time", timeFormatter.format(timeElapsed)));
         this.repaint();
     }
 
     public void gameOver() {
-        this.gameOverLabel.setText("Game over :(");
+        this.gameOverLabel.setText(t("game.over"));
     }
 
     public void updateLevel(int level) {
-        this.currentLevelLabel.setText(String.format("Level: %s", level));
+        this.currentLevelLabel.setText(t("game.level", level));
         this.repaint();
     }
 

src/main/java/eu/midnightdust/yaytris/ui/SettingsMenu.java

@@ -1,11 +1,14 @@
 package eu.midnightdust.yaytris.ui;
 
 import eu.midnightdust.yaytris.Settings;
+import eu.midnightdust.yaytris.Translation;
 import eu.midnightdust.yaytris.util.Difficulty;
+import eu.midnightdust.yaytris.util.Language;
 
 import javax.swing.*;
 import java.awt.*;
 
+import static eu.midnightdust.yaytris.Translation.t;
 import static eu.midnightdust.yaytris.ui.TetrisUI.scale;
 import static eu.midnightdust.yaytris.ui.TetrisUI.setFontScale;
 
@@ -17,7 +20,7 @@ public class SettingsMenu extends JPanel {
         this.setBounds(x, y, width, height);
         this.setLayout(null);
 
-        this.add(new JLabel("Musik-Lautstärke:"));
+        this.add(new JLabel(t("settings.volume.music")));
         JSlider musicVolumeSlider = new JSlider(0, 100, Settings.musicVolume);
         musicVolumeSlider.addChangeListener(change -> {
             Settings.musicVolume = musicVolumeSlider.getValue();
@@ -25,7 +28,7 @@ public class SettingsMenu extends JPanel {
         });
         this.add(musicVolumeSlider);
 
-        this.add(new JLabel("Effekt-Lautstärke:"));
+        this.add(new JLabel(t("settings.volume.sound")));
         JSlider soundVolumeSlider = new JSlider(0, 100, Settings.soundVolume);
         soundVolumeSlider.addChangeListener(change -> {
             Settings.soundVolume = soundVolumeSlider.getValue();
@@ -33,7 +36,7 @@ public class SettingsMenu extends JPanel {
         });
         this.add(soundVolumeSlider);
 
-        this.add(new JLabel("Fenster-Skalierung:"));
+        this.add(new JLabel(t("settings.window_scaling")));
         JSlider scaleSlider = new JSlider(100, 600, (int) (Settings.guiScale * 100));
         scaleSlider.addChangeListener(change -> {
             Settings.guiScale = scaleSlider.getValue() / 100f;
@@ -41,7 +44,7 @@ public class SettingsMenu extends JPanel {
         });
         this.add(scaleSlider);
 
-        this.add(new JLabel("Geschwindigkeitszunahme:"));
+        this.add(new JLabel(t("settings.scale_speed")));
         JCheckBox speedCheckbox = new JCheckBox("Aktiviert", Settings.shouldScaleSpeed);
         speedCheckbox.addChangeListener(change -> {
             Settings.shouldScaleSpeed = speedCheckbox.isSelected();
@@ -49,7 +52,7 @@ public class SettingsMenu extends JPanel {
         });
         this.add(speedCheckbox);
 
-        this.add(new JLabel("Schwierigkeit:"));
+        this.add(new JLabel(t("settings.difficulty")));
         JComboBox<Difficulty> difficultySelector = new JComboBox<>(Difficulty.values());
         difficultySelector.setSelectedItem(Settings.difficulty);
 
@@ -60,7 +63,20 @@ public class SettingsMenu extends JPanel {
         this.add(difficultySelector);
         difficultySelector.setSize(difficultySelector.getBounds().width,scale(10));
 
-        JButton backButton = new JButton("Zurück");
+        this.add(new JLabel(t("settings.language")));
+        JComboBox<Language> languageSelector = new JComboBox<>(Language.values());
+        languageSelector.setSelectedItem(Settings.language);
+
+        languageSelector.addActionListener(action -> {
+            Settings.language = (Language) languageSelector.getSelectedItem();
+            Settings.write();
+            Translation.load(Settings.language.locale);
+            ui.openSettings(action);
+        });
+        this.add(languageSelector);
+        languageSelector.setSize(languageSelector.getBounds().width,scale(10));
+
+        JButton backButton = new JButton(t("ui.back"));
         backButton.addActionListener(ui::openMainMenu);
         this.add(backButton);
     }
@@ -68,9 +84,9 @@ public class SettingsMenu extends JPanel {
 
     @Override
     public Component add(Component comp) {
-        comp.setBounds(scale(60), scale(20+23*this.getComponentCount()-labelAmount*10), scale(100), scale(20));
+        comp.setBounds(scale(60), scale(20+17*this.getComponentCount()-labelAmount*10), scale(100), scale(20));
         if (comp instanceof JLabel) {
-            comp.setBounds(scale(60), scale(50+23*(this.getComponentCount()-1)-labelAmount*10), scale(100), scale(7));
+            comp.setBounds(scale(60), scale(20+17*(this.getComponentCount())-labelAmount*10), scale(100), scale(7));
             labelAmount++;
         }
         if (comp instanceof JComponent) setFontScale((JComponent) comp);

src/main/java/eu/midnightdust/yaytris/ui/TetrisUI.java

@@ -14,6 +14,7 @@ import java.awt.event.KeyListener;
 import java.io.IOException;
 
 import static eu.midnightdust.yaytris.Settings.guiScale;
+import static eu.midnightdust.yaytris.Translation.t;
 
 public class TetrisUI extends JFrame implements KeyListener {
     JLabel titleLabel;
@@ -125,7 +126,7 @@ public class TetrisUI extends JFrame implements KeyListener {
     }
 
     public void showHighscoreDialog(int score) {
-        String playerName = JOptionPane.showInputDialog(null, "Gib deinen Namen ein:", "Neuer Highscore!", JOptionPane.PLAIN_MESSAGE);
+        String playerName = JOptionPane.showInputDialog(null, t("dialog.highscore.action"), t("dialog.highscore.title"), JOptionPane.PLAIN_MESSAGE);
         HighScores.addScore(playerName, score);
     }
 

src/main/java/eu/midnightdust/yaytris/util/Language.java

@@ -0,0 +1,17 @@
+package eu.midnightdust.yaytris.util;
+
+public enum Language {
+    ENGLISH("en_gb"), DEUTSCH("de_de");
+    public final String locale;
+    private final String name;
+
+    Language(String locale) {
+        this.locale = locale;
+        this.name = this.name().charAt(0) + this.name().substring(1).toLowerCase();
+    }
+
+    @Override
+    public String toString() {
+        return this.name;
+    }
+}

src/main/java/eu/midnightdust/yaytris/util/NightJson.java

@@ -9,19 +9,24 @@ import java.util.*;
 import java.util.concurrent.atomic.AtomicReference;
 
 /*
- NightJson v0.1 by Martin Prokoph
+ NightJson v0.2 by Martin Prokoph
  Extremely lightweight (and incomplete) JSON library
  Concept inspired by GSON
  */
 public class NightJson {
-    private static final String KEY_PATTERN = "\"(-?[0-9a-zA-Z]*)\":";
+    private static final String KEY_PATTERN = "\"(-?.*)\":";
     Class<?> jsonClass;
+    Map<String, ?> jsonMap;
     String fileLocation;
 
     public NightJson(Class<?> jsonClass, String fileLocation) {
         this.jsonClass = jsonClass;
         this.fileLocation = fileLocation;
     }
+    public NightJson(Map<String, ?> jsonMap, String fileLocation) {
+        this.jsonMap = jsonMap;
+        this.fileLocation = fileLocation;
+    }
 
     public void writeJson() {
         if (fileLocation == null) return;
@@ -29,17 +34,22 @@ public class NightJson {
             FileWriter jsonFile = new FileWriter(fileLocation);
 
             jsonFile.write("{\n");
-            Iterator<Field> it = Arrays.stream(jsonClass.getFields()).iterator();
-            while (it.hasNext()) {
-                Field field = it.next();
-                jsonFile.write("\t");
-                if (field.getType() == Comment.class) {
-                    jsonFile.write(String.format("// %s\n", ((Comment) field.get(null)).commentString));
-                    continue;
+            if (jsonClass != null) {
+                Iterator<Field> it = Arrays.stream(jsonClass.getFields()).iterator();
+                while (it.hasNext()) {
+                    Field field = it.next();
+                    writeElement(jsonFile, field.get(null), field.getType(), field.getName());
+                    jsonFile.write(it.hasNext() ? ",\n" : "\n");
+                }
+            }
+            else if (jsonMap != null) {
+                Iterator<String> it = jsonMap.keySet().iterator();
+                while (it.hasNext()) {
+                    String key = it.next();
+                    Object value = jsonMap.get(key);
+                    writeElement(jsonFile, jsonMap.get(key), value.getClass(), key);
+                    jsonFile.write(it.hasNext() ? ",\n" : "\n");
                 }
-                jsonFile.write(String.format("\"%s\": ", field.getName()));
-                jsonFile.write(objToString(field.get(null), field.getType()));
-                jsonFile.write(it.hasNext() ? ",\n" : "\n");
             }
             jsonFile.write("}");
             jsonFile.close();
@@ -49,6 +59,16 @@ public class NightJson {
         }
     }
 
+    private void writeElement(FileWriter jsonFile, Object value, Class<?> type, String name) throws IOException, IllegalAccessException {
+        jsonFile.write("\t");
+        if (type == Comment.class) {
+            jsonFile.write(String.format("// %s\n", ((Comment) value).commentString));
+            return;
+        }
+        jsonFile.write(String.format("\"%s\": ", name));
+        jsonFile.write(objToString(value, type));
+    }
+
     public void readJson() {
         if (fileLocation == null) return;
         try {
@@ -80,11 +100,20 @@ public class NightJson {
             for (String key : jsonKeyValuePairs.keySet()) {
                 String currentString = jsonKeyValuePairs.get(key);
                 //System.out.printf("Key: %s Value: %s%n", key, currentString);
-                Field field;
-                try { field = jsonClass.getField(key);
-                } catch (NoSuchFieldException e) {continue;}
+                if (jsonClass != null) {
+                    Field field;
+                    try {
+                        field = jsonClass.getField(key);
+                    } catch (NoSuchFieldException e) {
+                        continue;
+                    }
 
-                field.set(field, stringToFieldObj(currentString, field));
+                    field.set(field, stringToFieldObj(currentString, field));
+                }
+                else if (jsonMap != null) {
+                    //noinspection unchecked
+                    ((Map<String, Object>)jsonMap).put(key, stringToObj(currentString, String.class)); // TODO: Un-hardcode string type
+                }
             }
             jsonFile.close();
         } catch (IOException | IllegalAccessException | NoSuchElementException e) {
@@ -93,7 +122,7 @@ public class NightJson {
         }
     }
 
-    private String objToString(Object value, Class<?> type) throws IllegalAccessException {
+    private String objToString(Object value, Class<?> type) {
         if (type == Map.class) {
             StringBuilder mapPairs = new StringBuilder();
             Map<?, ?> map = (Map<?, ?>) value;

tetris_scores.json5

@@ -1,3 +1,3 @@
 {
-	"scores": {"Martin": 5703}
+	"scores": {"Martin": 6401}
 }

tetris_settings.json5

@@ -1,7 +1,8 @@
 {
-	"musicVolume": 19,
+	"musicVolume": 100,
 	"soundVolume": 100,
 	"guiScale": 6.0,
 	"shouldScaleSpeed": true,
-	"difficulty": "Normal"
+	"difficulty": "Normal",
+	"language": "Deutsch"
 }

translation/de_de.json5

@@ -0,0 +1,20 @@
+{
+  "dialog.highscore.action": "Gib deinen Namen ein:",
+  "dialog.highscore.title": "Neuer Highscore!",
+  "game.level": "Level: %s",
+  "game.over": "Game over :(",
+  "game.score": "Score: %s",
+  "game.time": "Zeit: %s",
+  "highscores.title": "Highscores:",
+  "menu.exit": "Spiel verlassen",
+  "menu.highscores": "Highscores",
+  "menu.settings": "Einstellungen",
+  "menu.start": "Start",
+  "settings.difficulty": "Schwierigkeit:",
+  "settings.language": "Sprache:",
+  "settings.scale_speed": "Geschwindigkeitszunahme:",
+  "settings.volume.music": "Musik-Lautstärke:",
+  "settings.volume.sound": "Effekt-Lautstärke:",
+  "settings.window_scaling": "Fenster-Skalierung:",
+  "ui.back": "Zurück"
+}

translation/en_gb.json5

@@ -0,0 +1,20 @@
+{
+    "dialog.highscore.action": "Enter your name:",
+    "dialog.highscore.title": "New Highscore!",
+    "game.level": "Level: %s",
+    "game.over": "Game over :(",
+    "game.score": "Score: %s",
+    "game.time": "Time: %s",
+    "highscores.title": "Highscores:",
+    "menu.exit": "Exit Game",
+    "menu.highscores": "Highscores",
+    "menu.settings": "Settings",
+    "menu.start": "Start",
+    "settings.difficulty": "Difficulty:",
+    "settings.language": "Language:",
+    "settings.scale_speed": "Speed Increase:",
+    "settings.volume.music": "Music Volume:",
+    "settings.volume.sound": "Sound Volume:",
+    "settings.window_scaling": "Window Scaling:",
+    "ui.back": "Back"
+}