Add GM command to give items, support equipping from inventory

Now with this command and support for *one* inventory slot, you can
now freely equip items to your character for testing.

USAGE.md

@@ -100,3 +100,4 @@ These GM commands are implemented in the FFXIV protocol, but only some of them a
 * `//gm teri <id>`: Changes to the specified territory
 * `//gm weather <id>`: Changes the weather
 * `//gm wireframe`: Toggle wireframe rendering for the environment
+* `//gm item <id>`: Gives yourself an item. This can only place a single item in the first page of your inventory currently.

src/bin/kawari-world.rs

@@ -655,6 +655,11 @@ async fn client_loop(
                                                         ActorControlCategory::ToggleWireframeRendering(),
                                                 })
                                                 .await,
+                                            GameMasterCommandType::GiveItem => {
+                                                connection.inventory.extra_slot.id = *arg;
+                                                connection.inventory.extra_slot.quantity = 1;
+                                                connection.send_inventory(false).await;
+                                            }
                                         }
                                     }
                                     ClientZoneIpcData::EnterZoneLine {

src/world/connection.rs

@@ -448,7 +448,37 @@ impl ZoneConnection {
     }
 
     pub async fn send_inventory(&mut self, send_appearance_update: bool) {
-        // item list
+        // page 1
+        {
+            let extra_slot = self.inventory.extra_slot;
+
+            let mut send_slot = async |slot_index: u16, item: &Item| {
+                let ipc = ServerZoneIpcSegment {
+                    op_code: ServerZoneIpcType::ItemInfo,
+                    timestamp: timestamp_secs(),
+                    data: ServerZoneIpcData::ItemInfo(ItemInfo {
+                        container: ContainerType::Inventory0,
+                        slot: slot_index,
+                        quantity: item.quantity,
+                        catalog_id: item.id,
+                        condition: 30000,
+                        ..Default::default()
+                    }),
+                    ..Default::default()
+                };
+
+                self.send_segment(PacketSegment {
+                    source_actor: self.player_data.actor_id,
+                    target_actor: self.player_data.actor_id,
+                    segment_type: SegmentType::Ipc { data: ipc },
+                })
+                .await;
+            };
+
+            send_slot(0, &extra_slot).await;
+        }
+
+        // equipped
         {
             let equipped = self.inventory.equipped;
 
@@ -490,6 +520,27 @@ impl ZoneConnection {
             send_slot(13, &equipped.soul_crystal).await;
         }
 
+        // inform the client of page 1
+          {
+            let ipc = ServerZoneIpcSegment {
+                op_code: ServerZoneIpcType::ContainerInfo,
+                timestamp: timestamp_secs(),
+                data: ServerZoneIpcData::ContainerInfo(ContainerInfo {
+                    container: ContainerType::Inventory0,
+                    num_items: 1,
+                    ..Default::default()
+                }),
+                ..Default::default()
+            };
+
+            self.send_segment(PacketSegment {
+                source_actor: self.player_data.actor_id,
+                target_actor: self.player_data.actor_id,
+                segment_type: SegmentType::Ipc { data: ipc },
+            })
+            .await;
+        }
+
         // inform the client they have items equipped
         {
             let ipc = ServerZoneIpcSegment {
@@ -498,6 +549,7 @@ impl ZoneConnection {
                 data: ServerZoneIpcData::ContainerInfo(ContainerInfo {
                     container: ContainerType::Equipped,
                     num_items: self.inventory.equipped.num_items(),
+                    sequence: 1,
                     ..Default::default()
                 }),
                 ..Default::default()

src/world/inventory.rs

@@ -5,7 +5,7 @@ use physis::{
 
 use crate::config::get_config;
 
-use super::ipc::InventoryModify;
+use super::ipc::{ContainerType, InventoryModify};
 
 #[derive(Default, Copy, Clone)]
 pub struct Item {
@@ -52,10 +52,30 @@ impl EquippedContainer {
             + self.left_ring.quantity
             + self.soul_crystal.quantity
     }
+
+    pub fn get_slot(&mut self, index: u16) -> &mut Item {
+        match index {
+            0 => &mut self.main_hand,
+            1 => &mut self.off_hand,
+            2 => &mut self.head,
+            3 => &mut self.body,
+            4 => &mut self.hands,
+            6 => &mut self.legs,
+            7 => &mut self.feet,
+            8 => &mut self.ears,
+            9 => &mut self.neck,
+            10 => &mut self.wrists,
+            11 => &mut self.right_ring,
+            12 => &mut self.left_ring,
+            13 => &mut self.soul_crystal,
+            _ => panic!("Not a valid src_container_index?!?"),
+        }
+    }
 }
 
 pub struct Inventory {
     pub equipped: EquippedContainer,
+    pub extra_slot: Item, // WIP for inventory pages
 }
 
 impl Default for Inventory {
@@ -68,6 +88,7 @@ impl Inventory {
     pub fn new() -> Self {
         Self {
             equipped: EquippedContainer::default(),
+            extra_slot: Item::default()
         }
     }
 
@@ -116,26 +137,15 @@ impl Inventory {
 
     pub fn process_action(&mut self, action: &InventoryModify) {
         // equipped
-        if action.src_storage_id == 1000 {
-            let slot = match action.src_container_index {
-                0 => &mut self.equipped.main_hand,
-                1 => &mut self.equipped.off_hand,
-                2 => &mut self.equipped.head,
-                3 => &mut self.equipped.body,
-                4 => &mut self.equipped.hands,
-                6 => &mut self.equipped.legs,
-                7 => &mut self.equipped.feet,
-                8 => &mut self.equipped.ears,
-                9 => &mut self.equipped.neck,
-                10 => &mut self.equipped.wrists,
-                11 => &mut self.equipped.right_ring,
-                12 => &mut self.equipped.left_ring,
-                13 => &mut self.equipped.soul_crystal,
-                _ => panic!("Not a valid src_container_index?!?"),
-            };
+        if action.src_storage_id == ContainerType::Equipped {
+            let src_slot = self.equipped.get_slot(action.src_container_index);
 
             // it only unequips for now, doesn't move the item
-            *slot = Item::default();
+            *src_slot = Item::default();
+        } else if action.src_storage_id == ContainerType::Inventory0 {
+            let dst_slot = self.equipped.get_slot(action.dst_container_index);
+
+            *dst_slot = self.extra_slot;
         }
     }
 }

src/world/ipc/container_info.rs

@@ -11,6 +11,7 @@ pub enum ContainerType {
     Inventory2 = 2,
     Inventory3 = 3,
     Equipped = 1000,
+    ArmouryBody = 3202,
 }
 
 #[binrw]
@@ -19,7 +20,7 @@ pub enum ContainerType {
 pub struct ContainerInfo {
     pub sequence: u32,
     pub num_items: u32,
-    #[brw(pad_after = 2)] // not used
+    #[brw(pad_size_to = 4)]
     pub container: ContainerType,
     pub start_or_finish: u32,
 }

src/world/ipc/inventory_modify.rs

@@ -1,20 +1,27 @@
 use binrw::binrw;
 
+use super::ContainerType;
+
 #[binrw]
 #[derive(Debug, Clone, Default)]
 pub struct InventoryModify {
     pub context_id: u32,
-    pub operation_type: u8,
-    #[brw(pad_before = 3)]
+    pub operation_type: u16,
+
+    #[brw(pad_before = 2)]
     pub src_actor_id: u32,
-    pub src_storage_id: u32,
-    pub src_container_index: i16,
-    #[brw(pad_before = 4)]
+    #[brw(pad_size_to = 4)]
+    pub src_storage_id: ContainerType,
+    pub src_container_index: u16,
+    #[brw(pad_before = 2)]
     pub src_stack: u32,
     pub src_catalog_id: u32,
+
     pub dst_actor_id: u32,
-    pub dst_storage_id: u32,
-    pub dst_container_index: i16,
+    #[brw(pad_size_to = 4)]
+    pub dst_storage_id: ContainerType,
+    pub dst_container_index: u16,
+    #[brw(pad_before = 2)]
     pub dst_stack: u32,
     pub dst_catalog_id: u32,
 }
@@ -36,16 +43,16 @@ mod tests {
         let mut buffer = Cursor::new(&buffer);
 
         let modify_inventory = InventoryModify::read_le(&mut buffer).unwrap();
-        assert_eq!(modify_inventory.context_id, 0x10000002);
-        assert_eq!(modify_inventory.operation_type, 70);
+        assert_eq!(modify_inventory.context_id, 0x10000000);
+        assert_eq!(modify_inventory.operation_type, 572);
         assert_eq!(modify_inventory.src_actor_id, 0);
-        assert_eq!(modify_inventory.src_storage_id, 1000);
-        assert_eq!(modify_inventory.src_container_index, 4);
-        assert_eq!(modify_inventory.src_stack, 0);
+        assert_eq!(modify_inventory.src_storage_id, ContainerType::Equipped);
+        assert_eq!(modify_inventory.src_container_index, 3);
+        assert_eq!(modify_inventory.src_stack, 1);
         assert_eq!(modify_inventory.src_catalog_id, 0);
-        assert_eq!(modify_inventory.dst_actor_id, 209911808);
-        assert_eq!(modify_inventory.dst_storage_id, 0);
-        assert_eq!(modify_inventory.dst_container_index, 96);
+        assert_eq!(modify_inventory.dst_actor_id, 0);
+        assert_eq!(modify_inventory.dst_storage_id, ContainerType::ArmouryBody);
+        assert_eq!(modify_inventory.dst_container_index, 0);
         assert_eq!(modify_inventory.dst_stack, 0);
         assert_eq!(modify_inventory.dst_catalog_id, 0);
     }

src/world/ipc/mod.rs

@@ -136,6 +136,7 @@ pub enum GameMasterCommandType {
     ToggleInvisibility = 0xD,
     ToggleWireframe = 0x26,
     ChangeTerritory = 0x58,
+    GiveItem = 0xC8,
 }
 
 #[binrw]