Add barter gold bindings

apps/openmw/mwlua/types/actor.cpp

@@ -421,6 +421,22 @@ namespace MWLua
             return ptr.getClass().getCapacity(ptr);
         };
 
+        actor["getBarterGold"] = [](const Object& object) -> int {
+            const MWWorld::Ptr ptr = object.ptr();
+            return ptr.getClass().getCreatureStats(ptr).getGoldPool();
+        };
+
+        actor["setBarterGold"] = [context](const SelfObject& object, int gold) {
+            if (gold < 0)
+                throw std::runtime_error("Barter gold must be positive");
+            context.mLuaManager->addAction(
+                [obj = Object(object), gold] {
+                    const MWWorld::Ptr ptr = obj.ptr();
+                    ptr.getClass().getCreatureStats(ptr).setGoldPool(gold);
+                },
+                "SetBarterGoldAction");
+        };
+
         actor["_onHit"] = [context](const SelfObject& self, const sol::table& options) {
             sol::optional<sol::table> damageLua = options.get<sol::optional<sol::table>>("damage");
             std::map<std::string, float> damageCpp;

files/lua_api/openmw/types.lua

@@ -22,6 +22,19 @@
 -- @param openmw.core#GameObject actor
 -- @return #number
 
+---
+-- Get the actor's current barter gold.
+-- @function [parent=#Actor] getBarterGold
+-- @param openmw.core#GameObject actor
+-- @return #number
+
+---
+-- Set the actor's current barter gold.
+-- Can only be used on self in local scripts.
+-- @function [parent=#Actor] setBarterGold
+-- @param openmw.core#GameObject actor
+-- @param #number amount
+
 ---
 -- Check if the given actor is dead (health reached 0, so death process started).
 -- @function [parent=#Actor] isDead