Update `Utils.java`

src/main/java/emu/grasscutter/utils/Utils.java

@@ -5,6 +5,8 @@ import java.nio.file.Files;
 import java.nio.file.StandardCopyOption;
 import java.time.*;
 import java.time.temporal.TemporalAdjusters;
+import java.util.HashMap;
+import java.util.Map;
 import java.util.Random;
 
 import emu.grasscutter.Config;
@@ -260,4 +262,41 @@ public final class Utils {
 			Grasscutter.getLogger().warn("Failed to read from input stream.");
 		} return stringBuilder.toString();
 	}
+
+	/**
+	 * Switch properties from upper case to lower case?
+	 */
+	public static Map<String, Object> switchPropertiesUpperLowerCase(Map<String, Object> objMap, Class<?> cls) {
+		Map<String, Object> map = new HashMap<>(objMap.size());
+		for (String key : objMap.keySet()) {
+			try {
+				char c = key.charAt(0);
+				if (c >= 'a' && c <= 'z') {
+					try {
+						cls.getDeclaredField(key);
+						map.put(key, objMap.get(key));
+					} catch (NoSuchFieldException e) {
+						String s1 = String.valueOf(c).toUpperCase();
+						String after = key.length() > 1 ? s1 + key.substring(1) : s1;
+						cls.getDeclaredField(after);
+						map.put(after, objMap.get(key));
+					}
+				} else if (c >= 'A' && c <= 'Z') {
+					try {
+						cls.getDeclaredField(key);
+						map.put(key, objMap.get(key));
+					} catch (NoSuchFieldException e) {
+						String s1 = String.valueOf(c).toLowerCase();
+						String after = key.length() > 1 ? s1 + key.substring(1) : s1;
+						cls.getDeclaredField(after);
+						map.put(after, objMap.get(key));
+					}
+				}
+			} catch (NoSuchFieldException e) {
+				map.put(key, objMap.get(key));
+			}
+		}
+
+		return map;
+	}
 }