Added interaction for trees and stones, added items wood, stone, book and slimeball, v1.4.0

Assets/Scripts/Slimes/BasicSlime.cs

@@ -100,9 +100,23 @@ namespace Assets.Scripts.Slimes
 
         public Item getItem()
         {
-            if (new System.Random().Next(100) + 1 < 10 + luck)
+            int rand = new System.Random().Next(100) + 1;
+            if (rand < 10000)//10 + luck)
             {
-                item = new Equipment(luck);
+                int type = new System.Random().Next(3);
+                switch (type)
+                {
+                    case 0:
+                        item = new Equipment(luck);
+                        break;
+                    case 1:
+                        item = new Book(luck);
+                        break;
+                    case 2:
+                        item = new Item(luck);
+                        break;
+                }
+                
             }
             return item;
         }