feat(object): add IncTypeID

src/object/client/Utils.cpp

@@ -0,0 +1,63 @@
+#include "object/client/Utils.hpp"
+
+/**
+ * Accounting for the full hierarchy of the given object, return the next inherited type ID after
+ * the given current type ID. If there is no next inherited type, return NUM_CLIENT_OBJECT_TYPES
+ * to indicate the end of the hierarchy.
+ */
+OBJECT_TYPE_ID IncTypeID(CGObject_C* object, OBJECT_TYPE_ID curTypeID) {
+    switch (object->m_obj->m_type) {
+        // ID_OBJECT -> ID_ITEM -> ID_CONTAINER
+        case HIER_TYPE_ITEM:
+        case HIER_TYPE_CONTAINER:
+            if (curTypeID == ID_OBJECT) {
+                return ID_ITEM;
+            }
+
+            if (curTypeID == ID_ITEM) {
+                return ID_CONTAINER;
+            }
+
+            return NUM_CLIENT_OBJECT_TYPES;
+
+        // ID_OBJECT -> ID_UNIT -> ID_PLAYER
+        case HIER_TYPE_UNIT:
+        case HIER_TYPE_PLAYER:
+            if (curTypeID == ID_OBJECT) {
+                return ID_UNIT;
+            }
+
+            if (curTypeID == ID_UNIT) {
+                return ID_PLAYER;
+            }
+
+            return NUM_CLIENT_OBJECT_TYPES;
+
+        // ID_OBJECT -> ID_GAMEOBJECT
+        case HIER_TYPE_GAMEOBJECT:
+            if (curTypeID == ID_OBJECT) {
+                return ID_GAMEOBJECT;
+            }
+
+            return NUM_CLIENT_OBJECT_TYPES;
+
+        // ID_OBJECT -> ID_DYNAMICOBJECT
+        case HIER_TYPE_DYNAMICOBJECT:
+            if (curTypeID == ID_OBJECT) {
+                return ID_DYNAMICOBJECT;
+            }
+
+            return NUM_CLIENT_OBJECT_TYPES;
+
+        // ID_OBJECT -> ID_CORPSE
+        case HIER_TYPE_CORPSE:
+            if (curTypeID == ID_OBJECT) {
+                return ID_CORPSE;
+            }
+
+            return NUM_CLIENT_OBJECT_TYPES;
+
+        default:
+            return NUM_CLIENT_OBJECT_TYPES;
+    }
+}

src/object/client/Utils.hpp

@@ -0,0 +1,9 @@
+#ifndef OBJECT_CLIENT_UTILS_HPP
+#define OBJECT_CLIENT_UTILS_HPP
+
+#include "object/client/CGObject_C.hpp"
+#include "object/Types.hpp"
+
+OBJECT_TYPE_ID IncTypeID(CGObject_C* object, OBJECT_TYPE_ID curTypeID);
+
+#endif