add hotkey for showing base stat

Source/diablo.cpp

@@ -1792,6 +1792,13 @@ void InitKeymapActions()
 	    SDLK_RCTRL,
 	    nullptr,
 	    [] { ToggleItemLabelHighlight(); });
+	sgOptions.Keymapper.AddAction(
+	    "Show Base Stats",
+	    N_("Show item base stats"),
+	    N_("Shows item base armor/damage without including bonuses"),
+	    SDLK_LCTRL,
+	    [] { showItemBaseStats = true; },
+	    [] { showItemBaseStats = false; });
 	sgOptions.Keymapper.AddAction(
 	    "Toggle Automap",
 	    N_("Toggle automap"),

Source/items.cpp

@@ -58,6 +58,7 @@ bool ShowUniqueItemInfoBox;
 CornerStoneStruct CornerStone;
 bool UniqueItemFlags[128];
 int MaxGold = GOLD_MAX_LIMIT;
+bool showItemBaseStats = false;
 
 /** Maps from item_cursor_graphic to in-memory item type. */
 int8_t ItemCAnimTbl[] = {
@@ -4110,7 +4111,7 @@ void PrintItemDetails(const Item &item)
 	}
 	if (item._iClass == ICLASS_ARMOR) {
 		int realAC = item._iAC;
-		if (item._iIdentified) {
+		if (!showItemBaseStats && item._iIdentified) {
 			realAC += GetBonusAC(item);
 		}
 		if (item._iMaxDur == DUR_INDESTRUCTIBLE)

Source/items.h

@@ -483,6 +483,7 @@ extern int8_t dItem[MAXDUNX][MAXDUNY];
 extern bool ShowUniqueItemInfoBox;
 extern CornerStoneStruct CornerStone;
 extern DVL_API_FOR_TEST bool UniqueItemFlags[128];
+extern bool showItemBaseStats;
 
 uint8_t GetOutlineColor(const Item &item, bool checkReq);
 bool IsItemAvailable(int i);