Implement the Home System (Serenitea Pot)

src/main/java/emu/grasscutter/game/home/HomeFurnitureItem.java

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+package emu.grasscutter.game.home;
+
+import dev.morphia.annotations.Entity;
+import emu.grasscutter.data.GameData;
+import emu.grasscutter.data.binout.HomeworldDefaultSaveData;
+import emu.grasscutter.data.excels.ItemData;
+import emu.grasscutter.net.proto.HomeFurnitureDataOuterClass;
+import emu.grasscutter.utils.Position;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Data;
+import lombok.experimental.FieldDefaults;
+
+@Entity
+@Data
+@FieldDefaults(level = AccessLevel.PRIVATE)
+@Builder(builderMethodName = "of")
+public class HomeFurnitureItem {
+    int furnitureId;
+    int guid;
+    int parentFurnitureIndex;
+    Position spawnPos;
+    Position spawnRot;
+
+    public HomeFurnitureDataOuterClass.HomeFurnitureData toProto(){
+        return HomeFurnitureDataOuterClass.HomeFurnitureData.newBuilder()
+                .setFurnitureId(furnitureId)
+                .setGuid(guid)
+                .setParentFurnitureIndex(parentFurnitureIndex)
+                .setSpawnPos(spawnPos.toProto())
+                .setSpawnRot(spawnRot.toProto())
+                .build();
+    }
+
+    public static HomeFurnitureItem parseFrom(HomeFurnitureDataOuterClass.HomeFurnitureData homeFurnitureData) {
+        return HomeFurnitureItem.of()
+                .furnitureId(homeFurnitureData.getFurnitureId())
+                .guid(homeFurnitureData.getGuid())
+                .parentFurnitureIndex(homeFurnitureData.getParentFurnitureIndex())
+                .spawnPos(new Position(homeFurnitureData.getSpawnPos()))
+                .spawnRot(new Position(homeFurnitureData.getSpawnRot()))
+                .build();
+    }
+
+    public static HomeFurnitureItem parseFrom(HomeworldDefaultSaveData.HomeFurniture homeFurniture) {
+        return HomeFurnitureItem.of()
+                .furnitureId(homeFurniture.getId())
+                .parentFurnitureIndex(1)
+                .spawnPos(homeFurniture.getPos() == null ? new Position() : homeFurniture.getPos())
+                .spawnRot(homeFurniture.getRot() == null ? new Position() : homeFurniture.getRot())
+                .build();
+    }
+
+    public ItemData getAsItem() {
+        return GameData.getItemDataMap().get(this.furnitureId);
+    }
+
+    public int getComfort() {
+        var item = getAsItem();
+
+        if (item == null){
+            return 0;
+        }
+        return item.getComfort();
+    }
+}