Add Support of Item Combine (#513)

* Add Support of Item Combine

* Add Support of Item Combine
Co-authored-by: Melledy <52122272+Melledy@users.noreply.github.com>

src/main/java/emu/grasscutter/data/GameData.java

@@ -66,6 +66,7 @@ public class GameData {
 	private static final Int2ObjectMap<DailyDungeonData> dailyDungeonDataMap = new Int2ObjectOpenHashMap<>();
 	private static final Int2ObjectMap<DungeonData> dungeonDataMap = new Int2ObjectOpenHashMap<>();
 	private static final Int2ObjectMap<ShopGoodsData> shopGoodsDataMap = new Int2ObjectOpenHashMap<>();
+	private static final Int2ObjectMap<CombineData> combineDataMap = new Int2ObjectOpenHashMap<>();
 	private static final Int2ObjectMap<RewardPreviewData> rewardPreviewDataMap = new Int2ObjectOpenHashMap<>();
   
 	// Cache
@@ -301,9 +302,6 @@ public class GameData {
 		return shopGoods;
 	}
 
-	/**
-	 * @return the rewardpreviewdatamap
-	 */
 	public static Int2ObjectMap<RewardPreviewData> getRewardPreviewDataMap() {
 		return rewardPreviewDataMap;
 	}
@@ -311,4 +309,8 @@ public class GameData {
 	public static IntList getScenePointIdList() {
 		return scenePointIdList;
 	}
+
+	public static Int2ObjectMap<CombineData> getCombineDataMap() {
+		return combineDataMap;
+	}
 }

src/main/java/emu/grasscutter/data/def/CombineData.java

 package emu.grasscutter.data.def;
 
+import emu.grasscutter.data.GameResource;
 import emu.grasscutter.data.ResourceType;
 
+import java.util.List;
+import java.util.stream.Collectors;
+
 @ResourceType(name = "CombineExcelConfigData.json")
-public class CombineData {
+public class CombineData extends GameResource {
+
+    private int CombineId;
+
+    private int PlayerLevel;
+
+    private boolean IsDefaultShow;
+
+    private int CombineType;
+
+    private int SubCombineType;
+
+    private int ResultItemId;
+
+    private int ResultItemCount;
+
+    private int ScoinCost;
+
+    private List<CombineItemPair> RandomItems;
+
+    private List<CombineItemPair> MaterialItems;
+
+    private long EffectDescTextMapHash;
+
+    private String RecipeType;
+
+    @Override
+    public int getId() {
+        return this.CombineId;
+    }
+
+    @Override
+    public void onLoad() {
+        super.onLoad();
+        // clean data
+        RandomItems = RandomItems.stream().filter(item -> item.Id > 0).collect(Collectors.toList());
+        MaterialItems = MaterialItems.stream().filter(item -> item.Id > 0).collect(Collectors.toList());
+    }
+
+    public static class CombineItemPair {
+
+        private int Id;
+
+        private int Count;
+
+        public CombineItemPair(int id, int count) {
+            Id = id;
+            Count = count;
+        }
+
+        public int getId() {
+            return Id;
+        }
+
+        public void setId(int id) {
+            Id = id;
+        }
+
+        public int getCount() {
+            return Count;
+        }
+
+        public void setCount(int count) {
+            Count = count;
+        }
+    }
 
+    public int getCombineId() {
+        return CombineId;
+    }
 
+    public void setCombineId(int combineId) {
+        CombineId = combineId;
+    }
 
+    public int getPlayerLevel() {
+        return PlayerLevel;
+    }
+
+    public void setPlayerLevel(int playerLevel) {
+        PlayerLevel = playerLevel;
+    }
+
+    public boolean isDefaultShow() {
+        return IsDefaultShow;
+    }
+
+    public void setDefaultShow(boolean defaultShow) {
+        IsDefaultShow = defaultShow;
+    }
+
+    public int getCombineType() {
+        return CombineType;
+    }
+
+    public void setCombineType(int combineType) {
+        CombineType = combineType;
+    }
+
+    public int getSubCombineType() {
+        return SubCombineType;
+    }
+
+    public void setSubCombineType(int subCombineType) {
+        SubCombineType = subCombineType;
+    }
+
+    public int getResultItemId() {
+        return ResultItemId;
+    }
+
+    public void setResultItemId(int resultItemId) {
+        ResultItemId = resultItemId;
+    }
+
+    public int getResultItemCount() {
+        return ResultItemCount;
+    }
+
+    public void setResultItemCount(int resultItemCount) {
+        ResultItemCount = resultItemCount;
+    }
+
+    public int getScoinCost() {
+        return ScoinCost;
+    }
+
+    public void setScoinCost(int scoinCost) {
+        ScoinCost = scoinCost;
+    }
+
+    public List<CombineItemPair> getRandomItems() {
+        return RandomItems;
+    }
+
+    public void setRandomItems(List<CombineItemPair> randomItems) {
+        RandomItems = randomItems;
+    }
+
+    public List<CombineItemPair> getMaterialItems() {
+        return MaterialItems;
+    }
+
+    public void setMaterialItems(List<CombineItemPair> materialItems) {
+        MaterialItems = materialItems;
+    }
+
+    public long getEffectDescTextMapHash() {
+        return EffectDescTextMapHash;
+    }
+
+    public void setEffectDescTextMapHash(long effectDescTextMapHash) {
+        EffectDescTextMapHash = effectDescTextMapHash;
+    }
+
+    public String getRecipeType() {
+        return RecipeType;
+    }
+
+    public void setRecipeType(String recipeType) {
+        RecipeType = recipeType;
+    }
 }
+

src/main/java/emu/grasscutter/game/combine/CombineManger.java

+package emu.grasscutter.game.combine;
+
+import emu.grasscutter.data.GameData;
+import emu.grasscutter.data.def.CombineData;
+import emu.grasscutter.game.inventory.ItemType;
+import emu.grasscutter.game.player.Player;
+import emu.grasscutter.net.proto.RetcodeOuterClass;
+import emu.grasscutter.server.game.GameServer;
+import emu.grasscutter.server.packet.send.PacketCombineRsp;
+import it.unimi.dsi.fastutil.Pair;
+
+import java.util.List;
+
+public class CombineManger {
+    private final GameServer gameServer;
+
+    public GameServer getGameServer() {
+        return gameServer;
+    }
+
+    public CombineManger(GameServer gameServer) {
+        this.gameServer = gameServer;
+    }
+
+    public CombineResult combineItem(Player player, int cid, int count){
+        // check config exist
+        if(!GameData.getCombineDataMap().containsKey(cid)){
+            player.getWorld().getHost().sendPacket(new PacketCombineRsp());
+            return null;
+        }
+
+        CombineData combineData = GameData.getCombineDataMap().get(cid);
+
+        if(combineData.getPlayerLevel() > player.getLevel()){
+            return null;
+        }
+        // check enough
+        var enough = combineData.getMaterialItems().stream()
+                .filter(item -> player.getInventory()
+                        .getInventoryTab(ItemType.ITEM_MATERIAL)
+                        .getItemById(item.getId())
+                        .getCount() < item.getCount() * count
+                )
+                .findAny()
+                .isEmpty();
+
+        // if not enough
+        if(!enough){
+            player.getWorld().getHost().sendPacket(
+                    new PacketCombineRsp(RetcodeOuterClass.Retcode.RET_ITEM_COMBINE_COUNT_NOT_ENOUGH_VALUE)
+            );
+            return null;
+        }
+        if (player.getMora() >= combineData.getScoinCost()) {
+            player.setMora(player.getMora() - combineData.getScoinCost() * count);
+        } else {
+            return null;
+        }
+        // try to remove materials
+        combineData.getMaterialItems().stream()
+                .map(item -> Pair.of(player.getInventory()
+                                .getInventoryTab(ItemType.ITEM_MATERIAL)
+                                .getItemById(item.getId())
+                        ,item.getCount() * count)
+                )
+                .forEach(item -> player.getInventory().removeItem(item.first(), item.second()));
+
+        // make the result
+        player.getInventory().addItem(combineData.getResultItemId(),
+                combineData.getResultItemCount() * count);
+
+        CombineResult result = new CombineResult();
+        result.setMaterial(List.of());
+        result.setResult(List.of(new CombineData.CombineItemPair(combineData.getResultItemId(),
+                combineData.getResultItemCount() * count)));
+        // TODO lucky characters
+        result.setExtra(List.of());
+        result.setBack(List.of());
+
+        return result;
+    }
+
+}

src/main/java/emu/grasscutter/game/combine/CombineResult.java

+package emu.grasscutter.game.combine;
+
+import emu.grasscutter.data.def.CombineData;
+
+import java.util.List;
+
+public class CombineResult {
+    private List<CombineData.CombineItemPair> material;
+    private List<CombineData.CombineItemPair> result;
+    private List<CombineData.CombineItemPair> extra;
+    private List<CombineData.CombineItemPair> back;
+
+    public List<CombineData.CombineItemPair> getMaterial() {
+        return material;
+    }
+
+    public void setMaterial(List<CombineData.CombineItemPair> material) {
+        this.material = material;
+    }
+
+    public List<CombineData.CombineItemPair> getResult() {
+        return result;
+    }
+
+    public void setResult(List<CombineData.CombineItemPair> result) {
+        this.result = result;
+    }
+
+    public List<CombineData.CombineItemPair> getExtra() {
+        return extra;
+    }
+
+    public void setExtra(List<CombineData.CombineItemPair> extra) {
+        this.extra = extra;
+    }
+
+    public List<CombineData.CombineItemPair> getBack() {
+        return back;
+    }
+
+    public void setBack(List<CombineData.CombineItemPair> back) {
+        this.back = back;
+    }
+
+}

src/main/java/emu/grasscutter/server/game/GameServer.java

@@ -5,6 +5,7 @@ import emu.grasscutter.Grasscutter;
 import emu.grasscutter.command.CommandMap;
 import emu.grasscutter.database.DatabaseHelper;
 import emu.grasscutter.game.Account;
+import emu.grasscutter.game.combine.CombineManger;
 import emu.grasscutter.game.drop.DropManager;
 import emu.grasscutter.game.dungeons.DungeonManager;
 import emu.grasscutter.game.gacha.GachaManager;
@@ -45,6 +46,8 @@ public final class GameServer extends KcpServer {
 	private final TaskMap taskMap;
 	private final DropManager dropManager;
 
+	private final CombineManger combineManger;
+
 	public GameServer(InetSocketAddress address) {
 		super(address);
 
@@ -63,6 +66,7 @@ public final class GameServer extends KcpServer {
 		this.commandMap = new CommandMap(true);
 		this.taskMap = new TaskMap(true);
 		this.dropManager = new DropManager(this);
+		this.combineManger = new CombineManger(this);
 
 		// Schedule game loop.
 		Timer gameLoop = new Timer();
@@ -125,6 +129,9 @@ public final class GameServer extends KcpServer {
 		return this.commandMap;
 	}
 
+	public CombineManger getCombineManger(){
+		return this.combineManger;
+	}
 	public TaskMap getTaskMap() {
 		return this.taskMap;
 	}

src/main/java/emu/grasscutter/server/packet/recv/HandlerCombineReq.java

 package emu.grasscutter.server.packet.recv;
 
+import emu.grasscutter.data.def.CombineData;
 import emu.grasscutter.net.packet.Opcodes;
 import emu.grasscutter.net.packet.PacketHandler;
 import emu.grasscutter.net.packet.PacketOpcodes;
 import emu.grasscutter.net.proto.CombineReqOuterClass;
+import emu.grasscutter.net.proto.ItemParamOuterClass;
 import emu.grasscutter.server.game.GameSession;
+import emu.grasscutter.server.packet.send.PacketCombineRsp;
+
+import java.util.List;
+import java.util.stream.Collectors;
 
 @Opcodes(PacketOpcodes.CombineReq)
 public class HandlerCombineReq extends PacketHandler {
@@ -14,7 +20,28 @@ public class HandlerCombineReq extends PacketHandler {
 
         CombineReqOuterClass.CombineReq req = CombineReqOuterClass.CombineReq.parseFrom(payload);
 
+        var result = session.getServer().getCombineManger()
+                .combineItem(session.getPlayer(), req.getCombineId(), req.getCombineCount());
+
+        if(result == null){
+            return;
         }
 
+        session.send(new PacketCombineRsp(req,
+                toItemParamList(result.getMaterial()),
+                toItemParamList(result.getResult()),
+                toItemParamList(result.getExtra()),
+                toItemParamList(result.getBack()),
+                toItemParamList(result.getBack())));
+    }
+
+    private List<ItemParamOuterClass.ItemParam> toItemParamList(List<CombineData.CombineItemPair> list){
+        return list.stream()
+                .map(item -> ItemParamOuterClass.ItemParam.newBuilder()
+                        .setItemId(item.getId())
+                        .setCount(item.getCount())
+                        .build())
+                .collect(Collectors.toList());
+    }
 }