Add Gadget(zh-cn only)!!

Update Spawns page, Subdivided monster types

Source/GrasscutterTools/Game/ItemMapGroup.cs

@@ -0,0 +1,48 @@
+using System.Collections.Generic;
+using System.Linq;
+
+namespace GrasscutterTools.Game
+{
+    /// <summary>
+    /// ID映射组，Key为分类，双斜杠构造
+    /// </summary>
+    public class ItemMapGroup : Dictionary<string, ItemMap>
+    {
+        public ItemMapGroup(string idNamePairs)
+        {
+            for (int i = 0; i < idNamePairs.Length;)
+            {
+                var categoryLineStartIndex = idNamePairs.IndexOf("//", i);
+                if (categoryLineStartIndex == -1)
+                    break;
+                var categoryLineEndIndex = idNamePairs.IndexOf('\n', categoryLineStartIndex);
+                if (categoryLineEndIndex == -1)
+                    break;
+
+                var category = idNamePairs.Substring(categoryLineStartIndex+2, categoryLineEndIndex - categoryLineStartIndex - 3).Trim();
+
+                var nextStartIndex = idNamePairs.IndexOf("//", categoryLineEndIndex);
+                if (nextStartIndex == -1)
+                {
+                    var itemMap = new ItemMap(idNamePairs.Substring(categoryLineEndIndex + 1));
+                    if (itemMap.Count > 0)
+                        Add(category, itemMap);
+                    break;
+                }
+                else
+                {
+                    var pairs = idNamePairs.Substring(categoryLineEndIndex + 1, nextStartIndex - categoryLineEndIndex - 1);
+                    var itemMap = new ItemMap(pairs);
+                    if (itemMap.Count > 0)
+                        Add(category, itemMap);
+                    i = nextStartIndex;
+                }
+            }
+        }
+
+        /// <summary>
+        /// 获取所有行
+        /// </summary>
+        public IEnumerable<string> AllLines => Values.SelectMany(it => it.Lines);
+    }
+}