Refactored inventory some so that the UI is not so knowing of the internals.

inventory.cpp

@@ -40,4 +40,31 @@ namespace components {
 
     return -1;
   }
+
+  std::pair<bool, std::string> Inventory::use(GameLevel &level, size_t at) {
+    auto& player_combat = level.world->get<components::Combat>(level.player);
+    auto& item = get(at);
+
+    if(item.count == 0) return {false, item.data["name"]};
+
+    if(item.data["id"] == "SWORD_RUSTY") {
+      auto weapon = components::get<components::Weapon>(item.data);
+      player_combat.damage = weapon.damage;
+    } else if(item.data["id"] == "POTION_HEALING_SMALL") {
+      auto cure = components::get<components::Curative>(item.data);
+      player_combat.hp = std::min(player_combat.hp + cure.hp, player_combat.max_hp);
+    } else if(item.data["id"] == "TORCH_BAD") {
+      auto new_light = components::get<components::LightSource>(item.data);
+      level.world->set<components::LightSource>(level.player, new_light);
+      light = new_light;
+    } else {
+      return {false, fmt::format("UNKNOWN ITEM: {}", (std::string)item.data["id"])};
+    }
+
+    decrease(at, 1);
+    return {true, item.data["name"]};
+  }
+
+
+
 }