Implement item quick growth

src/main/java/emu/nebula/game/inventory/Inventory.java

@@ -537,11 +537,16 @@ public class Inventory extends PlayerManager implements GameDatabaseObject {
     
     // Utility functions
     
-    public PlayerChangeInfo produce(int id, int num) {
+    public PlayerChangeInfo produce(int id, int num, PlayerChangeInfo change) {
+        // Init change info
+        if (change == null) {
+            change = new PlayerChangeInfo();
+        }
+        
         // Get production data
         var data = GameData.getProductionDataTable().get(id);
         if (data == null) {
-            return null;
+            return change;
         }
         
         // Get materials
@@ -549,12 +554,9 @@ public class Inventory extends PlayerManager implements GameDatabaseObject {
         
         // Verify that we have the materials
         if (!this.verifyItems(materials)) {
-            return null;
+            return change;
         }
         
-        // Create change info
-        var change = new PlayerChangeInfo();
-        
         // Remove items
         this.removeItems(materials, change);
         

src/main/java/emu/nebula/game/player/PlayerChangeInfo.java

@@ -27,6 +27,10 @@ public class PlayerChangeInfo {
         return this;
     }
 
+    public boolean isEmpty() {
+        return this.list == null || this.list.isEmpty();
+    }
+
     public void add(ProtoMessage<?> proto) {
         var any = Any.newInstance()
                 .setTypeUrl(GameConstants.PROTO_BASE_TYPE_URL + proto.getClass().getSimpleName())

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

@@ -15,14 +15,14 @@ public class HandlerItemProductReq extends NetHandler {
         var req = ItemProductReq.parseFrom(message);
         
         // Produce item
-        var changes = session.getPlayer().getInventory().produce(req.getId(), req.getNum());
+        var change = session.getPlayer().getInventory().produce(req.getId(), req.getNum(), null);
         
-        if (changes == null) {
+        if (change.isEmpty()) {
             return session.encodeMsg(NetMsgId.item_product_failed_ack);
         }
         
         // Send response
-        return session.encodeMsg(NetMsgId.item_product_succeed_ack, changes.toProto());
+        return session.encodeMsg(NetMsgId.item_product_succeed_ack, change.toProto());
     }
 
 }

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

@@ -0,0 +1,40 @@
+package emu.nebula.server.handlers;
+
+import emu.nebula.net.NetHandler;
+import emu.nebula.net.NetMsgId;
+import emu.nebula.proto.ItemQuickGrowth.ItemGrowthReq;
+import emu.nebula.net.HandlerId;
+import emu.nebula.game.player.PlayerChangeInfo;
+import emu.nebula.net.GameSession;
+
+@HandlerId(NetMsgId.item_quick_growth_req)
+public class HandlerItemQuickGrowthReq extends NetHandler {
+
+    @Override
+    public byte[] handle(GameSession session, byte[] message) throws Exception {
+        // Parse request
+        var req = ItemGrowthReq.parseFrom(message);
+        
+        // Init change
+        var change = new PlayerChangeInfo();
+        
+        // Create items
+        for (var item : req.getList()) {
+            if (item.hasProduct()) {
+                session.getPlayer().getInventory().produce(
+                        item.getProduct().getId(),
+                        item.getProduct().getNum(),
+                        change
+                );
+            }
+        }
+        
+        if (change.isEmpty()) {
+            return session.encodeMsg(NetMsgId.item_quick_growth_failed_ack);
+        }
+        
+        // Send response
+        return session.encodeMsg(NetMsgId.item_quick_growth_succeed_ack, change.toProto());
+    }
+
+}