added description to item

res/scripts/stdlib.lua

@@ -128,6 +128,28 @@ function inventory.decrement(invid, slot, count)
     end
 end
 
+function inventory.set_caption(invid, slot, caption)
+    local itemid, itemcount = inventory.get(invid, slot)
+    if itemid == 0 then
+        return
+    end
+    if caption == nil or type(caption) ~= "string" then
+        caption = ""
+    end
+    inventory.set_data(invid, slot, "caption", caption)
+end
+
+function inventory.set_description(invid, slot, description)
+    local itemid, itemcount = inventory.get(invid, slot)
+    if itemid == 0 then
+        return
+    end
+    if description == nil or type(description) ~= "string" then
+        description = ""
+    end
+    inventory.set_data(invid, slot, "description", description)
+end
+
 ------------------------------------------------
 ------------------- Events ---------------------
 ------------------------------------------------

src/graphics/ui/elements/InventoryView.cpp

@@ -124,15 +124,23 @@ void SlotView::refreshTooltip(const ItemStack& stack, const ItemDef& item) {
     }
     if (itemid) {
         dv::value* caption = stack.getField("caption");
-        if (caption != nullptr) {
+        dv::value* description = stack.getField("description");
-            tooltip = util::pascal_case(
+        std::wstring captionText;
-                langs::get(util::str2wstr_utf8(caption->asString()))
+        std::wstring descriptionText;
-            );
+
+        if (description != nullptr) {
+            descriptionText = util::pascal_case( langs::get( util::str2wstr_utf8( description->asString() ) ) );
         } else {
-            tooltip = util::pascal_case(
+            descriptionText = util::pascal_case( langs::get( util::str2wstr_utf8( item.description ) ) );
-                langs::get(util::str2wstr_utf8(item.caption))
-            );
         }
+
+        if (caption != nullptr) {
+            captionText = util::pascal_case( langs::get( util::str2wstr_utf8( caption->asString() ) ) ); 
+        } else {
+            captionText = util::pascal_case( langs::get( util::str2wstr_utf8( item.caption ) ) );
+        }
+
+        tooltip = captionText + L"\n" + descriptionText;
     } else {
         tooltip.clear();
     }

src/items/ItemDef.cpp

@@ -4,6 +4,7 @@
 
 ItemDef::ItemDef(const std::string& name) : name(name) {
     caption = util::id_to_caption(name);
+    description = "";
 }
 void ItemDef::cloneTo(ItemDef& dst) {
     dst.caption = caption;

src/items/ItemDef.hpp

@@ -34,6 +34,9 @@ struct ItemDef {
     /// @brief Item name will shown in inventory
     std::string caption;
 
+    /// @brief Item description will shown in inventory
+    std::string description;
+
     dv::value properties = nullptr;
 
     /// @brief Item max stack size