[Server] Add GetInventoryChangesAction() script function

Additionally, fix a typo in the description of GetSpellBookChangesAction()

apps/openmw-mp/Script/Functions/Items.cpp

@@ -31,6 +31,14 @@ unsigned int ItemFunctions::GetInventoryChangesSize(unsigned short pid) noexcept
     return player->inventoryChanges.count;
 }
 
+unsigned int ItemFunctions::GetInventoryChangesAction(unsigned short pid) noexcept
+{
+    Player *player;
+    GET_PLAYER(pid, player, 0);
+
+    return player->inventoryChanges.action;
+}
+
 void ItemFunctions::EquipItem(unsigned short pid, unsigned short slot, const char *refId, unsigned int count,
     int charge, double enchantmentCharge) noexcept
 {

apps/openmw-mp/Script/Functions/Items.hpp

@@ -6,6 +6,7 @@
     \
     {"GetEquipmentSize",                      ItemFunctions::GetEquipmentSize},\
     {"GetInventoryChangesSize",               ItemFunctions::GetInventoryChangesSize},\
+    {"GetInventoryChangesAction",             ItemFunctions::GetInventoryChangesAction},\
     \
     {"EquipItem",                             ItemFunctions::EquipItem},\
     {"UnequipItem",                           ItemFunctions::UnequipItem},\
@@ -67,6 +68,14 @@ public:
     */
     static unsigned int GetInventoryChangesSize(unsigned short pid) noexcept;
 
+    /**
+    * \brief Get the action type used in a player's latest inventory changes.
+    *
+    * \param pid The player ID whose inventory changes should be used.
+    * \return The action type (0 for SET, 1 for ADD, 2 for REMOVE).
+    */
+    static unsigned int GetInventoryChangesAction(unsigned short pid) noexcept;
+
     /**
     * \brief Equip an item in a certain slot of the equipment of a player.
     *

apps/openmw-mp/Script/Functions/Spells.hpp

@@ -39,7 +39,7 @@ public:
     /**
     * \brief Get the action type used in a player's latest spellbook changes.
     *
-    * \param pid The player ID whose faction changes should be used.
+    * \param pid The player ID whose spellbook changes should be used.
     * \return The action type (0 for SET, 1 for ADD, 2 for REMOVE).
     */
     static unsigned int GetSpellbookChangesAction(unsigned short pid) noexcept;