Implement trekker affinity story

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

@@ -0,0 +1,48 @@
+package emu.nebula.server.handlers;
+
+import emu.nebula.net.NetHandler;
+import emu.nebula.net.NetMsgId;
+import emu.nebula.proto.Public.ChangeInfo;
+import emu.nebula.proto.Public.UI32;
+import emu.nebula.net.HandlerId;
+import emu.nebula.data.GameData;
+import emu.nebula.net.GameSession;
+
+@HandlerId(NetMsgId.plot_reward_receive_req)
+public class HandlerPlotRewardReceiveReq extends NetHandler {
+
+    @Override
+    public byte[] handle(GameSession session, byte[] message) throws Exception {
+        // Parse request
+        var req = UI32.parseFrom(message);
+        
+        // Get plot data
+        var plot = GameData.getPlotDataTable().get(req.getValue());
+        
+        if (plot == null) {
+            // Send empty packet to prevent the client from crashing
+            return session.encodeMsg(NetMsgId.plot_reward_receive_succeed_ack, ChangeInfo.newInstance());
+        }
+        
+        // Get character
+        var character = session.getPlayer().getCharacters().getCharacterById(plot.getChar());
+        
+        if (character == null) {
+            // Send empty packet to prevent the client from crashing
+            return session.encodeMsg(NetMsgId.plot_reward_receive_succeed_ack, ChangeInfo.newInstance());
+        }
+        
+        // Complete plot
+        var change = character.recvPlotReward(plot.getId());
+        
+        if (change == null) {
+            // Should never happen
+            // Send empty packet to prevent the client from crashing
+            return session.encodeMsg(NetMsgId.plot_reward_receive_succeed_ack, ChangeInfo.newInstance());
+        }
+        
+        // Encode and send
+        return session.encodeMsg(NetMsgId.plot_reward_receive_succeed_ack, change.toProto());
+    }
+
+}