Refactor inventory system

src/main/java/emu/nebula/server/handlers/HandlerCharSkinSetReq.java

@@ -0,0 +1,33 @@
+package emu.nebula.server.handlers;
+
+import emu.nebula.net.NetHandler;
+import emu.nebula.net.NetMsgId;
+import emu.nebula.proto.CharSkinSet.CharSkinSetReq;
+import emu.nebula.net.HandlerId;
+import emu.nebula.net.GameSession;
+
+@HandlerId(NetMsgId.char_skin_set_req)
+public class HandlerCharSkinSetReq extends NetHandler {
+
+    @Override
+    public byte[] handle(GameSession session, byte[] message) throws Exception {
+        // Parse request
+        var req = CharSkinSetReq.parseFrom(message);
+        
+        // Get character
+        var character = session.getPlayer().getCharacters().getCharacterById(req.getCharId());
+        if (character == null) {
+            return session.encodeMsg(NetMsgId.char_skin_set_failed_ack);
+        }
+        
+        // Set skin
+        var result = character.setSkin(req.getSkinId());
+        if (!result) {
+            return session.encodeMsg(NetMsgId.char_skin_set_failed_ack);
+        }
+        
+        // Encode and send
+        return session.encodeMsg(NetMsgId.char_skin_set_succeed_ack);
+    }
+
+}