Begin implementing gil shops, add free item to inventory

Tested against the Florist in New Gridania, although we don't
deduct the item price from you and such.

Cargo.lock

@@ -567,7 +567,7 @@ dependencies = [
 [[package]]
 name = "icarus"
 version = "0.0.0"
-source = "git+https://github.com/redstrate/Icarus?branch=ver%2F2025.06.10.0000.0000#67c49d1e161f140fb5e1ee2bb051e8901ba3f6eb"
+source = "git+https://github.com/redstrate/Icarus?branch=ver%2F2025.06.10.0000.0000#c6eb3b05ebe54b86c25d09dbc0bfc7b30f5cdadf"
 dependencies = [
  "physis",
 ]
@@ -1048,7 +1048,7 @@ checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
 [[package]]
 name = "physis"
 version = "0.5.0"
-source = "git+https://github.com/redstrate/physis#6ebb7acfcdcf80e2de9ce8d36fae42bb964d9cfc"
+source = "git+https://github.com/redstrate/physis#862b16b681e8593f2b327442deddc12922209531"
 dependencies = [
  "binrw",
  "bitflags",

resources/scripts/events/Events.lua

@@ -308,6 +308,7 @@ common_events = {
 
 -- NPC shops that accept gil for purchasing items
 generic_gil_shops = {
+    262157, -- Tanie <Florist>, New Gridania
     263220, -- Neon <Air-wheeler dealer>, Solution Nine
 }
 

src/bin/kawari-world.rs

@@ -6,6 +6,7 @@ use kawari::RECEIVE_BUFFER_SIZE;
 use kawari::common::Position;
 use kawari::common::{GameData, timestamp_secs};
 use kawari::config::get_config;
+use kawari::inventory::Item;
 use kawari::ipc::chat::{ServerChatIpcData, ServerChatIpcSegment};
 use kawari::ipc::zone::{
     ActorControlCategory, ActorControlSelf, PlayerEntry, PlayerSpawn, PlayerStatus, SocialList,
@@ -790,8 +791,21 @@ async fn client_loop(
                                             ClientZoneIpcData::GilShopTransaction { event_id, unk1: _, buy_sell_mode, item_index, item_quantity, unk2: _ } => {
                                                 tracing::info!("Client is interacting with a shop! {event_id:#?} {buy_sell_mode:#?} {item_quantity:#?} {item_index:#?}");
 
-                                                // TODO: update the client's inventory, adjust their gil, and send the proper response packets!
+                                                let item_id;
-                                                connection.send_message("Shops are not implemented yet. Cancelling event...").await;
+                                                {
+                                                    let mut game_data = connection.gamedata.lock().unwrap();
+                                                    item_id = game_data.get_gilshop_item(*event_id, *item_index as u16);
+                                                }
+
+                                                if let Some(item_id) = item_id {
+                                                    // TODO: adjust their gil, and send the proper response packets!
+                                                    connection.send_message("Shops are not implemented fully yet. Giving you a free item...").await;
+
+                                                    connection.player_data.inventory.add_in_next_free_slot(Item::new(1, item_id as u32));
+                                                    connection.send_inventory(false).await;
+                                                } else {
+                                                    connection.send_message(&format!("Unable to find shop item, this is a bug in Kawari!")).await;
+                                                }
 
                                                 // Cancel the event for now so the client doesn't get stuck
                                                 connection.event_finish(*event_id).await;

src/common/gamedata.rs

@@ -2,6 +2,7 @@ use icarus::Action::ActionSheet;
 use icarus::Aetheryte::AetheryteSheet;
 use icarus::ClassJob::ClassJobSheet;
 use icarus::EquipSlotCategory::EquipSlotCategorySheet;
+use icarus::GilShopItem::GilShopItemSheet;
 use icarus::PlaceName::PlaceNameSheet;
 use icarus::TerritoryType::TerritoryTypeSheet;
 use icarus::WeatherRate::WeatherRateSheet;
@@ -329,6 +330,14 @@ impl GameData {
     pub fn get_exp_array_index(&self, classjob_id: u16) -> Option<i8> {
         self.classjob_exp_indexes.get(classjob_id as usize).copied()
     }
+
+    /// Gets the item and it's cost from the specified shop.
+    pub fn get_gilshop_item(&mut self, gilshop_id: u32, index: u16) -> Option<i32> {
+        let sheet = GilShopItemSheet::read_from(&mut self.game_data, Language::None)?;
+        let row = sheet.get_subrow(gilshop_id, index)?;
+
+        row.Item().into_i32().copied()
+    }
 }
 
 // Simple enum for GameData::get_territory_name