Basic implementation of character emblems

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

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+package emu.nebula.server.handlers;
+
+import emu.nebula.net.NetHandler;
+import emu.nebula.net.NetMsgId;
+import emu.nebula.proto.CharGemEquipGem.CharGemEquipGemReq;
+import emu.nebula.net.HandlerId;
+import emu.nebula.net.GameSession;
+
+@HandlerId(NetMsgId.char_gem_equip_gem_req)
+public class HandlerCharGemEquipGemReq extends NetHandler {
+
+    @Override
+    public byte[] handle(GameSession session, byte[] message) throws Exception {
+        // Parse request
+        var req = CharGemEquipGemReq.parseFrom(message);
+        
+        // Get character
+        var character = session.getPlayer().getCharacters().getCharacterById(req.getCharId());
+        
+        if (character == null) {
+            return session.encodeMsg(NetMsgId.char_gem_equip_gem_failed_ack);
+        }
+        
+        // Equip gem
+        boolean success = character.equipGem(req.getPresetId(), req.getSlotId(), req.getGemIndex());
+        
+        if (success == false) {
+            return session.encodeMsg(NetMsgId.char_gem_equip_gem_failed_ack);
+        }
+        
+        // Encode and send
+        return session.encodeMsg(NetMsgId.char_gem_equip_gem_succeed_ack);
+    }
+
+}

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

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+package emu.nebula.server.handlers;
+
+import emu.nebula.net.NetHandler;
+import emu.nebula.net.NetMsgId;
+import emu.nebula.proto.CharGemGenerate.CharGemGenerateReq;
+import emu.nebula.proto.CharGemGenerate.CharGemGenerateResp;
+import emu.nebula.net.HandlerId;
+import emu.nebula.game.character.CharacterGem;
+import emu.nebula.net.GameSession;
+
+@HandlerId(NetMsgId.char_gem_generate_req)
+public class HandlerCharGemGenerateReq extends NetHandler {
+
+    @Override
+    public byte[] handle(GameSession session, byte[] message) throws Exception {
+        // Parse request
+        var req = CharGemGenerateReq.parseFrom(message);
+        
+        // Get character
+        var character = session.getPlayer().getCharacters().getCharacterById(req.getCharId());
+        if (character == null) {
+            return session.encodeMsg(NetMsgId.char_gem_generate_failed_ack);
+        }
+        
+        // Generate gem
+        var change = character.generateGem(req.getSlotId());
+        
+        if (change == null) {
+            return session.encodeMsg(NetMsgId.char_gem_generate_failed_ack);
+        }
+        
+        var gem = (CharacterGem) change.getExtraData();
+        
+        // Build response
+        var rsp = CharGemGenerateResp.newInstance()
+                .setChangeInfo(change.toProto())
+                .setCharGem(gem.toProto());
+        
+        // Encode and send
+        return session.encodeMsg(NetMsgId.char_gem_generate_succeed_ack, rsp);
+    }
+
+}

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

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+package emu.nebula.server.handlers;
+
+import emu.nebula.net.NetHandler;
+import emu.nebula.net.NetMsgId;
+import emu.nebula.proto.CharGemUsePreset.CharGemUsePresetReq;
+import emu.nebula.net.HandlerId;
+import emu.nebula.net.GameSession;
+
+@HandlerId(NetMsgId.char_gem_use_preset_req)
+public class HandlerCharGemUsePresetReq extends NetHandler {
+
+    @Override
+    public byte[] handle(GameSession session, byte[] message) throws Exception {
+        // Parse request
+        var req = CharGemUsePresetReq.parseFrom(message);
+        
+        // Get character
+        var character = session.getPlayer().getCharacters().getCharacterById(req.getCharId());
+        
+        if (character == null) {
+            return session.encodeMsg(NetMsgId.char_gem_use_preset_failed_ack);
+        }
+        
+        // Use preset
+        boolean success = character.setCurrentGemPreset(req.getPresetId());
+        
+        if (success == false) {
+            return session.encodeMsg(NetMsgId.char_gem_use_preset_failed_ack);
+        }
+        
+        // Encode and send
+        return session.encodeMsg(NetMsgId.char_gem_use_preset_succeed_ack);
+    }
+
+}