Implement Finale Echoing sweep

src/main/java/emu/nebula/game/activity/type/JointDrillActivity.java

@@ -12,6 +12,7 @@ import emu.nebula.data.resources.ActivityDef;
 import emu.nebula.data.resources.JointDrill2LevelDef;
 import emu.nebula.game.activity.ActivityManager;
 import emu.nebula.game.activity.GameActivity;
+import emu.nebula.game.inventory.ItemParamMap;
 import emu.nebula.game.jointdrill.JointDrillBuild;
 import emu.nebula.game.jointdrill.JointDrillRankEntry;
 import emu.nebula.game.jointdrill.JointDrillScore;
@@ -245,6 +246,55 @@ public class JointDrillActivity extends GameActivity {
         return score;
     }
     
+    public synchronized PlayerChangeInfo sweep(int levelId, int count) {
+        // Sanity check
+        if (count <= 0) {
+            return null;
+        }
+        
+        // Check if the player has completed this level
+        if (!this.getPassedLevels().containsKey(levelId)) {
+            return null;
+        }
+        
+        // Verify that we have enough tickets
+        if (!getPlayer().getInventory().hasItem(GameConstants.JOINT_DRILL_TICKET_ID, count)) {
+            return null;
+        }
+        
+        // Get level data
+        var level = GameData.getJointDrill2LevelDataTable().get(levelId);
+        
+        if (level == null) {
+            return null;
+        }
+        
+        // Setup variables
+        var change = new PlayerChangeInfo();
+        var totalRewards = new ItemParamMap();
+        var list = new ArrayList<>();
+        
+        // Consume tickets
+        getPlayer().getInventory().removeItem(GameConstants.JOINT_DRILL_TICKET_ID, count, change);
+        
+        // Generate rewards from sweep
+        for (int i = 0; i < count; i++) {
+            var rewards = level.getRewards().generate();
+            
+            totalRewards.add(rewards);
+            list.add(rewards);
+        }
+        
+        // Add rewards to player
+        getPlayer().getInventory().addItems(totalRewards, change);
+        
+        // Set reward list as extra data for change info
+        change.setExtraData(list);
+        
+        // Complete
+        return change;
+    }
+    
     // Proto
 
     @Override

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

@@ -0,0 +1,56 @@
+package emu.nebula.server.handlers;
+
+import emu.nebula.net.NetHandler;
+import emu.nebula.net.NetMsgId;
+import emu.nebula.proto.JointDrillSweep.JointDrillSweepReq;
+import emu.nebula.proto.JointDrillSweep.JointDrillSweepResp;
+import emu.nebula.proto.Public.ItemTpls;
+import emu.nebula.net.HandlerId;
+
+import java.util.List;
+
+import emu.nebula.game.activity.type.JointDrillActivity;
+import emu.nebula.game.inventory.ItemParamMap;
+import emu.nebula.net.GameSession;
+
+@HandlerId(NetMsgId.joint_drill_sweep_req)
+public class HandlerJointDrillSweepReq extends NetHandler {
+
+    @Override
+    public byte[] handle(GameSession session, byte[] message) throws Exception {
+        // Get joint drill activity
+        var activity = session.getPlayer().getActivityManager().getFirstActivity(JointDrillActivity.class);
+        
+        if (activity == null) {
+            return session.encodeMsg(NetMsgId.joint_drill_sweep_failed_ack);
+        }
+        
+        // Parse request
+        var req = JointDrillSweepReq.parseFrom(message);
+        
+        // Apply for joint drill stage
+        var change = activity.sweep(req.getLevelId(), req.getCount());
+        
+        if (change == null) {
+            return session.encodeMsg(NetMsgId.joint_drill_sweep_failed_ack);
+        }
+        
+        // Create response packet
+        var rsp = JointDrillSweepResp.newInstance()
+                .setChange(change.toProto());
+        
+        // Encode sweep rewards to proto
+        @SuppressWarnings("unchecked")
+        var list = (List<ItemParamMap>) change.getExtraData();
+        
+        for (var rewards : list) {
+            var templates = ItemTpls.newInstance();
+            rewards.toItemTemplateStream().forEach(templates::addItems);
+            rsp.addRewards(templates);
+        }
+        
+        // Encode and send
+        return session.encodeMsg(NetMsgId.joint_drill_sweep_succeed_ack, rsp);
+    }
+
+}