Update to proper configs, as well as add no power requirement to machines

common/src/main/java/net/cmr/jurassicrevived/config/JRConfigManager.java

@@ -28,8 +28,16 @@ public final class JRConfigManager {
         // For now: keep it simple and non-fatal.
         try {
             String text = Files.readString(file, StandardCharsets.UTF_8);
-            // TODO: parse JSON into config (Gson recommended)
-            // config = parsed;
+            JRConfig loaded = new JRConfig();
+
+            loaded.requirePower = readBoolean(text, "requirePower", loaded.requirePower);
+            loaded.naturallySpawning = readBoolean(text, "naturallySpawning", loaded.naturallySpawning);
+            loaded.fePerSecond = readPositiveInt(text, "fePerSecond", loaded.fePerSecond);
+            loaded.itemsPerSecond = readPositiveInt(text, "itemsPerSecond", loaded.itemsPerSecond);
+            loaded.milliBucketsPerSecond = readPositiveInt(text, "milliBucketsPerSecond", loaded.milliBucketsPerSecond);
+
+            config = loaded;
+            save(configDir);
         } catch (IOException e) {
             // Keep defaults if load fails
         }
@@ -40,10 +48,12 @@ public final class JRConfigManager {
             Files.createDirectories(configDir);
             Path file = configDir.resolve("jurassicrevived.json");
 
-            // TODO: write JSON (Gson recommended)
             String text = "{\n" +
-                    "  \"enableDinosaurs\": " + config.enableDinosaurs + ",\n" +
-                    "  \"spawnWeight\": " + config.spawnWeight + "\n" +
+                    "  \"requirePower\": " + config.requirePower + ",\n" +
+                    "  \"naturallySpawning\": " + config.naturallySpawning + ",\n" +
+                    "  \"fePerSecond\": " + config.fePerSecond + ",\n" +
+                    "  \"itemsPerSecond\": " + config.itemsPerSecond + ",\n" +
+                    "  \"milliBucketsPerSecond\": " + config.milliBucketsPerSecond + "\n" +
                     "}\n";
 
             Files.writeString(file, text, StandardCharsets.UTF_8);
@@ -51,4 +61,45 @@ public final class JRConfigManager {
             // ignore / log via your logger if desired
         }
     }
+
+    private static boolean readBoolean(String text, String key, boolean fallback) {
+        String value = readRawValue(text, key);
+        if ("true".equalsIgnoreCase(value)) return true;
+        if ("false".equalsIgnoreCase(value)) return false;
+        return fallback;
+    }
+
+    private static int readPositiveInt(String text, String key, int fallback) {
+        String value = readRawValue(text, key);
+        if (value == null) return fallback;
+
+        try {
+            return Math.max(1, Integer.parseInt(value));
+        } catch (NumberFormatException e) {
+            return fallback;
+        }
+    }
+
+    private static String readRawValue(String text, String key) {
+        String quotedKey = "\"" + key + "\"";
+        int keyIndex = text.indexOf(quotedKey);
+        if (keyIndex < 0) return null;
+
+        int colonIndex = text.indexOf(':', keyIndex + quotedKey.length());
+        if (colonIndex < 0) return null;
+
+        int valueStart = colonIndex + 1;
+        while (valueStart < text.length() && Character.isWhitespace(text.charAt(valueStart))) {
+            valueStart++;
+        }
+
+        int valueEnd = valueStart;
+        while (valueEnd < text.length()) {
+            char c = text.charAt(valueEnd);
+            if (c == ',' || c == '\n' || c == '\r' || c == '}') break;
+            valueEnd++;
+        }
+
+        return text.substring(valueStart, valueEnd).trim();
+    }
 }