feat: support running the game from jar file

build.gradle.kts

@@ -14,6 +14,11 @@ dependencies {
     testImplementation("org.junit.jupiter:junit-jupiter")
 }
 
+tasks.jar {
+    manifest.attributes["Main-Class"] = "eu.midnightdust.yaytris.Tetris"
+}
+
+
 tasks.test {
     useJUnitPlatform()
 }

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

@@ -2,6 +2,8 @@ package eu.midnightdust.yaytris;
 
 import eu.midnightdust.yaytris.util.NightJson;
 
+import java.io.IOException;
+import java.io.InputStream;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -15,8 +17,14 @@ public class Translation {
      * @see          NightJson
      */
     public static void load(String locale) {
-        NightJson json = new NightJson(Translation.class, String.format("translation/%s.json5", locale));
-        json.readJson();
+        String jsonString; // This workaround is needed to support reading translations from json files embedded in the .jar file
+        try (InputStream stream = Translation.class.getResourceAsStream(String.format("/translation/%s.json5", locale))) {
+            jsonString = stream != null ? new String(stream.readAllBytes()) : "";
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+        NightJson json = new NightJson(Translation.class, "translation");
+        json.readJsonFromString(jsonString);
     }
 
     /**

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

@@ -103,10 +103,6 @@ public class NightJson {
         return String.format(type == String.class || type.isEnum() ? "\"%s\"" : "%s", value);
     }
 
-    /**
-     * Read the json file from disk and overwrite the json class's field values.
-     */
-    @SuppressWarnings("unchecked")
     public void readJson() {
         if (fileLocation == null) return;
         try {
@@ -115,9 +111,20 @@ public class NightJson {
                 writeJson();
                 return;
             }
+            readJsonFromString(Files.readString(file.toPath()));
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
 
+    /**
+     * Read the json file from disk and overwrite the json class's field values.
+     */
+    @SuppressWarnings("unchecked")
+    public void readJsonFromString(String jsonString) {
+        try {
             Map<String, Object> asMap = jsonToMap(
-                    Files.readString(file.toPath()).replaceAll("(//)+.*\n", ""), // Replace comment lines (Json5)
+                    jsonString.replaceAll("(//)+.*\n", ""), // Replace comment lines (Json5)
                     (key) -> getField(key).isPresent() ? getField(key).get().getType() : String.class); // Determine data type
 
             for (String key : asMap.keySet()) {
@@ -130,7 +137,7 @@ public class NightJson {
                     ((Map<String, Object>)jsonMap.get(null)).put(key, value);
                 }
             }
-        } catch (IOException | IllegalAccessException | NoSuchElementException | ClassCastException e) {
+        } catch (IllegalAccessException | NoSuchElementException | ClassCastException e) {
             System.out.println("Oh no! An Error occurred whilst reading the JSON file :(");
             //noinspection CallToPrintStackTrace
             e.printStackTrace();

src/main/java/eu/midnightdust/yaytris/util/sound/SoundUtil.java

@@ -41,7 +41,7 @@ public class SoundUtil {
      * @param fileLocation  the URI of the desired audio file (should be a .wav file)
      */
     public static void playSoundClip(String fileLocation) {
-        try (AudioInputStream stream = AudioSystem.getAudioInputStream(getResource(fileLocation))) { // FIXME: Support audio files from JAR. File streams won't work here for some reason.
+        try (AudioInputStream stream = AudioSystem.getAudioInputStream(getResource(fileLocation))) {
             AudioFormat format = stream.getFormat();
             DataLine.Info info = new DataLine.Info(Clip.class, format);