Add some usage of Inventory.payItems()

And add quantity to it

src/main/java/emu/grasscutter/game/gacha/GachaManager.java

@@ -13,6 +13,7 @@ import com.google.gson.reflect.TypeToken;
 import com.sun.nio.file.SensitivityWatchEventModifier;
 import emu.grasscutter.Grasscutter;
 import emu.grasscutter.data.GameData;
+import emu.grasscutter.data.common.ItemParamData;
 import emu.grasscutter.data.def.ItemData;
 import emu.grasscutter.database.DatabaseHelper;
 import emu.grasscutter.game.avatar.Avatar;
@@ -127,13 +128,8 @@ public class GachaManager {
 		}
 
 		// Spend currency
-		if (banner.getCostItem() > 0) {
-			GameItem costItem = player.getInventory().getInventoryTab(ItemType.ITEM_MATERIAL).getItemById(banner.getCostItem());
-			if (costItem == null || costItem.getCount() < times) {
-				return;
-			}
-			
-			player.getInventory().removeItem(costItem, times);
+		if (banner.getCostItem() > 0 && !player.getInventory().payItems(new ItemParamData[] {new ItemParamData(banner.getCostItem(), times)})) {
+			return;
 		}
 		
 		// Roll

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

@@ -272,14 +272,18 @@ public class Inventory implements Iterable<GameItem> {
 		}
 	}
 
-	public boolean payItems(Collection<ItemParamData> items) {
-		return payItems(items, null);
+	public boolean payItems(ItemParamData[] costItems) {
+		return payItems(costItems, 1, null);
+	}
+
+	public boolean payItems(ItemParamData[] costItems, int quantity) {
+		return payItems(costItems, quantity, null);
 	}
 	
-	public synchronized boolean payItems(Collection<ItemParamData> costItems, ActionReason reason) {
+	public synchronized boolean payItems(ItemParamData[] costItems, int quantity, ActionReason reason) {
 		// Make sure player has requisite items
 		for (ItemParamData cost : costItems) {
-			if (getVirtualItemCount(cost.getId()) < cost.getCount()) {
+			if (getVirtualItemCount(cost.getId()) < (cost.getCount() * quantity)) {
 				return false;
 			}
 		}
@@ -287,13 +291,13 @@ public class Inventory implements Iterable<GameItem> {
 		for (ItemParamData cost : costItems) {
 			switch (cost.getId()) {
 				case 201 ->  // Primogem
-					player.setPrimogems(player.getPrimogems() - cost.getCount());
+					player.setPrimogems(player.getPrimogems() - (cost.getCount() * quantity));
 				case 202 ->  // Mora
-					player.setMora(player.getMora() - cost.getCount());
+					player.setMora(player.getMora() - (cost.getCount() * quantity));
 				case 203 ->  // Genesis Crystals
-					player.setCrystals(player.getCrystals() - cost.getCount());
+					player.setCrystals(player.getCrystals() - (cost.getCount() * quantity));
 				default ->
-					removeItem(getInventoryTab(ItemType.ITEM_MATERIAL).getItemById(cost.getId()), cost.getCount());
+					removeItem(getInventoryTab(ItemType.ITEM_MATERIAL).getItemById(cost.getId()), cost.getCount() * quantity);
 			}
 		}
 		

src/main/java/emu/grasscutter/game/managers/InventoryManager.java

 package emu.grasscutter.game.managers;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
@@ -496,27 +497,16 @@ public class InventoryManager {
 			return;
 		}
 		
-		// Make sure player has promote items
-		for (ItemParamData cost : nextPromoteData.getCostItems()) {
-			GameItem feedItem = player.getInventory().getInventoryTab(ItemType.ITEM_MATERIAL).getItemById(cost.getId());
-			if (feedItem == null || feedItem.getCount() < cost.getCount()) {
-				return;
-			}
+		// Pay materials and mora if possible
+		ItemParamData[] costs = nextPromoteData.getCostItems();  // Can this be null?
+		if (nextPromoteData.getCoinCost() > 0) {
+			costs = Arrays.copyOf(costs, costs.length + 1);
+			costs[costs.length-1] = new ItemParamData(202, nextPromoteData.getCoinCost());
 		}
-		
-		// Mora check
-		if (player.getMora() >= nextPromoteData.getCoinCost()) {
-			player.setMora(player.getMora() - nextPromoteData.getCoinCost());
-		} else {
+		if (!player.getInventory().payItems(costs)) {
 			return;
 		}
 		
-		// Consume promote filler items
-		for (ItemParamData cost : nextPromoteData.getCostItems()) {
-			GameItem feedItem = player.getInventory().getInventoryTab(ItemType.ITEM_MATERIAL).getItemById(cost.getId());
-			player.getInventory().removeItem(feedItem, cost.getCount());
-		}
-		
 		int oldPromoteLevel = weapon.getPromoteLevel();
 		weapon.setPromoteLevel(nextPromoteLevel);
 		weapon.save();
@@ -552,27 +542,16 @@ public class InventoryManager {
 			return;
 		}
 		
-		// Make sure player has cost items
-		for (ItemParamData cost : nextPromoteData.getCostItems()) {
-			GameItem feedItem = player.getInventory().getInventoryTab(ItemType.ITEM_MATERIAL).getItemById(cost.getId());
-			if (feedItem == null || feedItem.getCount() < cost.getCount()) {
-				return;
-			}
+		// Pay materials and mora if possible
+		ItemParamData[] costs = nextPromoteData.getCostItems();  // Can this be null?
+		if (nextPromoteData.getCoinCost() > 0) {
+			costs = Arrays.copyOf(costs, costs.length + 1);
+			costs[costs.length-1] = new ItemParamData(202, nextPromoteData.getCoinCost());
 		}
-		
-		// Mora check
-		if (player.getMora() >= nextPromoteData.getCoinCost()) {
-			player.setMora(player.getMora() - nextPromoteData.getCoinCost());
-		} else {
+		if (!player.getInventory().payItems(costs)) {
 			return;
 		}
 		
-		// Consume promote filler items
-		for (ItemParamData cost : nextPromoteData.getCostItems()) {
-			GameItem feedItem = player.getInventory().getInventoryTab(ItemType.ITEM_MATERIAL).getItemById(cost.getId());
-			player.getInventory().removeItem(feedItem, cost.getCount());
-		}
-		
 		// Update promote level
 		avatar.setPromoteLevel(nextPromoteLevel);
 		
@@ -764,33 +743,15 @@ public class InventoryManager {
 			return;
 		}
 		
-		// Make sure player has cost items
-		for (ItemParamData cost : proudSkill.getCostItems()) {
-			if (cost.getId() == 0) {
-				continue;
-			}
-			GameItem feedItem = player.getInventory().getInventoryTab(ItemType.ITEM_MATERIAL).getItemById(cost.getId());
-			if (feedItem == null || feedItem.getCount() < cost.getCount()) {
-				return;
-			}
+		// Pay materials and mora if possible
+		List<ItemParamData> costs = proudSkill.getCostItems();  // Can this be null?
+		if (proudSkill.getCoinCost() > 0) {
+			costs.add(new ItemParamData(202, proudSkill.getCoinCost()));
 		}
-		
-		// Mora check
-		if (player.getMora() >= proudSkill.getCoinCost()) {
-			player.setMora(player.getMora() - proudSkill.getCoinCost());
-		} else {
+		if (!player.getInventory().payItems(costs.toArray(new ItemParamData[0]))) {
 			return;
 		}
 		
-		// Consume promote filler items
-		for (ItemParamData cost : proudSkill.getCostItems()) {
-			if (cost.getId() == 0) {
-				continue;
-			}
-			GameItem feedItem = player.getInventory().getInventoryTab(ItemType.ITEM_MATERIAL).getItemById(cost.getId());
-			player.getInventory().removeItem(feedItem, cost.getCount());
-		}
-		
 		// Upgrade skill
 		avatar.getSkillLevelMap().put(skillId, nextLevel);
 		avatar.save();

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

@@ -18,7 +18,7 @@ import emu.grasscutter.server.packet.send.PacketBuyGoodsRsp;
 import emu.grasscutter.server.packet.send.PacketStoreItemChangeNotify;
 import emu.grasscutter.utils.Utils;
 
-import java.util.HashMap;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Optional;
 
@@ -56,36 +56,13 @@ public class HandlerBuyGoodsReq extends PacketHandler {
                 return;
             }
 
-            if (sg.getScoin() > 0 && session.getPlayer().getMora() < buyGoodsReq.getBoughtNum() * sg.getScoin()) {
+            List<ItemParamData> costs = sg.getCostItemList();  // Can this even be null?
+            costs.add(new ItemParamData(202, sg.getScoin()));
+            costs.add(new ItemParamData(201, sg.getHcoin()));
+            costs.add(new ItemParamData(203, sg.getMcoin()));
+            if (!session.getPlayer().getInventory().payItems(costs.toArray(new ItemParamData[0]), buyGoodsReq.getBoughtNum())) {
                 return;
             }
-            if (sg.getHcoin() > 0 && session.getPlayer().getPrimogems() < buyGoodsReq.getBoughtNum() * sg.getHcoin()) {
-                return;
-            }
-            if (sg.getMcoin() > 0 && session.getPlayer().getCrystals() < buyGoodsReq.getBoughtNum() * sg.getMcoin()) {
-                return;
-            }
-
-            HashMap<GameItem, Integer> itemsCache = new HashMap<>();
-            if (sg.getCostItemList() != null) {
-                for (ItemParamData p : sg.getCostItemList()) {
-                    Optional<GameItem> invItem = session.getPlayer().getInventory().getItems().values().stream().filter(x -> x.getItemId() == p.getId()).findFirst();
-                    if (invItem.isEmpty() || invItem.get().getCount() < p.getCount())
-                        return;
-                    itemsCache.put(invItem.get(), p.getCount() * buyGoodsReq.getBoughtNum());
-                }
-            }
-
-            session.getPlayer().setMora(session.getPlayer().getMora() - buyGoodsReq.getBoughtNum() * sg.getScoin());
-            session.getPlayer().setPrimogems(session.getPlayer().getPrimogems() - buyGoodsReq.getBoughtNum() * sg.getHcoin());
-            session.getPlayer().setCrystals(session.getPlayer().getCrystals() - buyGoodsReq.getBoughtNum() * sg.getMcoin());
-
-            if (!itemsCache.isEmpty()) {
-                for (GameItem gi : itemsCache.keySet()) {
-                    session.getPlayer().getInventory().removeItem(gi, itemsCache.get(gi));
-                }
-                itemsCache.clear();
-            }
 
             session.getPlayer().addShopLimit(sg.getGoodsId(), buyGoodsReq.getBoughtNum(), ShopManager.getShopNextRefreshTime(sg));
             GameItem item = new GameItem(GameData.getItemDataMap().get(sg.getGoodsItem().getId()));