item structure overhaul

also, item pickup

src/entity/character.rs

@@ -247,6 +247,7 @@ pub struct NewCharacterEntity {
     pub guildcard: CharacterGuildCard,
 
     pub tech_menu: CharacterTechMenu,
+    pub meseta: u32,
 }
 
 impl NewCharacterEntity {
@@ -264,6 +265,7 @@ impl NewCharacterEntity {
             info_board: CharacterInfoboard::new(),
             guildcard: CharacterGuildCard::default(),
             tech_menu: CharacterTechMenu::new(),
+            meseta: 0,
         }
     }
 }
@@ -287,4 +289,5 @@ pub struct CharacterEntity {
     pub guildcard: CharacterGuildCard,
 
     pub tech_menu: CharacterTechMenu,
+    pub meseta: u32,
 }

src/entity/gateway/inmemory.rs

@@ -120,6 +120,7 @@ impl EntityGateway for InMemoryGateway {
             info_board: character.info_board,
             guildcard: character.guildcard,
             tech_menu: character.tech_menu,
+            meseta: character.meseta,
         };
         characters.insert(new_character.id, new_character.clone());
         Some(new_character)

src/entity/item/mod.rs

@@ -21,14 +21,21 @@ pub struct BankName(String);
 pub enum ItemLocation {
     Inventory {
         character_id: CharacterEntityId,
-        index: usize,
+        slot: usize,
         equipped: bool,
     },
     Bank {
         character_id: CharacterEntityId,
         slot: BankName,
     },
-    Floor {
+    LocalFloor {
+        character_id: CharacterEntityId,
+        map_area: MapArea,
+        x: f32,
+        y: f32,
+        z: f32,
+    },
+    SharedFloor {
         map_area: MapArea,
         x: f32,
         y: f32,
@@ -44,7 +51,7 @@ pub enum ItemLocation {
 */
 }
 
-#[derive(Debug, PartialEq)]
+#[derive(Debug, Clone, PartialEq)]
 pub struct Meseta(pub u32);
 
 impl Meseta {

src/login/character.rs

@@ -220,7 +220,7 @@ fn new_character<EG: EntityGateway>(entity_gateway: &mut EG, user: &UserAccountE
             }),
             location: ItemLocation::Inventory {
                 character_id: character.id,
-                index: 0,
+                slot: 0,
                 equipped: true,
             }});
 
@@ -235,7 +235,7 @@ fn new_character<EG: EntityGateway>(entity_gateway: &mut EG, user: &UserAccountE
                 }),
             location: ItemLocation::Inventory {
                 character_id: character.id,
-                index: 1,
+                slot: 1,
             equipped: true,
             }});
 
@@ -255,7 +255,7 @@ fn new_character<EG: EntityGateway>(entity_gateway: &mut EG, user: &UserAccountE
                 }),
             location: ItemLocation::Inventory {
                 character_id: character.id,
-                index: 2,
+                slot: 2,
                 equipped: true,
             }});
 
@@ -268,7 +268,7 @@ fn new_character<EG: EntityGateway>(entity_gateway: &mut EG, user: &UserAccountE
                     }),
                 location: ItemLocation::Inventory {
                     character_id: character.id,
-                    index: 3,
+                    slot: 3,
                     equipped: false,
                 }});
         entity_gateway.create_item(
@@ -279,7 +279,7 @@ fn new_character<EG: EntityGateway>(entity_gateway: &mut EG, user: &UserAccountE
                     }),
                 location: ItemLocation::Inventory {
                     character_id: character.id,
-                    index: 4,
+                    slot: 4,
                     equipped: false,
                 }});
     }

src/main.rs

@@ -77,7 +77,7 @@ fn main() {
         entity_gateway.create_character(character);
         let mut character = NewCharacterEntity::new(fake_user.id);
         character.slot = 2;
-        character.name = "\tE12345678".into();
+        character.name = "no progress".into();
         character.exp = 80000000;
         let character = entity_gateway.create_character(character).unwrap();
 
@@ -96,7 +96,7 @@ fn main() {
                 ),
                 location: ItemLocation::Inventory {
                     character_id: character.id,
-                    index: 0,
+                    slot: 0,
                     equipped: true,
                 }
             });

src/ship/character.rs

@@ -1,7 +1,7 @@
 use libpso::character::character;
 use crate::common::leveltable::CharacterStats;
 use crate::entity::character::CharacterEntity;
-use crate::ship::items::ActiveInventory;
+use crate::ship::items::CharacterInventory;
 
 // TODO: exp
 pub struct CharacterBytesBuilder<'a> {
@@ -79,7 +79,7 @@ pub struct FullCharacterBytesBuilder<'a> {
     character: Option<&'a CharacterEntity>,
     stats: Option<&'a CharacterStats>,
     level: Option<u32>,
-    inventory: Option<&'a ActiveInventory>,
+    inventory: Option<&'a CharacterInventory>,
     key_config: Option<&'a [u8; 0x16C]>,
     joystick_config: Option<&'a [u8; 0x38]>,
     symbol_chat: Option<&'a [u8; 1248]>,
@@ -122,7 +122,7 @@ impl<'a> FullCharacterBytesBuilder<'a> {
         }
     }
 
-    pub fn inventory(self, inventory: &'a ActiveInventory) -> FullCharacterBytesBuilder<'a> {
+    pub fn inventory(self, inventory: &'a CharacterInventory) -> FullCharacterBytesBuilder<'a> {
         FullCharacterBytesBuilder {
             inventory: Some(inventory),
             ..self

src/ship/items.rs

@@ -1,37 +1,37 @@
 #![allow(dead_code)]
-use std::collections::HashMap;
+use std::collections::{HashMap, BTreeMap};
-use libpso::character::character::InventoryItem;
+use libpso::character::character;//::InventoryItem;
 use crate::entity::gateway::EntityGateway;
 use crate::entity::character::CharacterEntity;
-use crate::entity::item::{ItemEntity, ItemDetail, ItemLocation};
+use crate::entity::item::{ItemEntityId, ItemEntity, ItemDetail, ItemLocation};
 use crate::entity::item::{Meseta, NewItemEntity};
+use crate::entity::item::tool::Tool;
 use crate::ship::map::MapArea;
 use crate::ship::drops::{ItemDrop, ItemDropType};
-use crate::ship::ship::ShipError;
+use crate::ship::ship::ClientState;
 
 
-#[derive(Debug, PartialEq)]
-enum ItemInstance {
-    Individual(ItemEntity),
-    Stacked(Vec<ItemEntity>),
-    Meseta(Meseta),
-}
-
 #[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
 pub struct ActiveItemId(pub u32);
 
-
 #[derive(Debug)]
-pub struct ActiveItem {
+enum ActiveItemEntityId {
-    pub id: ActiveItemId,
+    Individual(ItemEntityId),
-    item: ItemInstance,
+    Stacked(Vec<ItemEntityId>),
+    Meseta(Meseta),
 }
 
-impl ActiveItem {
+#[derive(Debug)]
+enum HeldItemType {
+    Individual(ItemDetail),
+    Stacked(Tool, usize),
+}
+
+impl HeldItemType {
     pub fn as_client_bytes(&self) -> [u8; 16] {
-        match &self.item {
+        match self {
-            ItemInstance::Individual(i) => {
+            HeldItemType::Individual(item) => {
-                match &i.item {
+                match &item {
                     ItemDetail::Weapon(w) => w.as_bytes(),
                     ItemDetail::Armor(a) => a.as_bytes(),
                     ItemDetail::Shield(s) => s.as_bytes(),
@@ -41,328 +41,278 @@ impl ActiveItem {
                     ItemDetail::Mag(m) => m.as_bytes(),
                 }
             },
-            ItemInstance::Stacked(i) => {
+            HeldItemType::Stacked(tool, count) => {
-                let len = i.len();
+                tool.as_stacked_bytes(*count)
-                match &i[0].item {
+            },
-                    ItemDetail::Tool(t) => t.as_stacked_bytes(len),
+        }
-                    _ => panic!(),
+    }
+}
+
+#[derive(Debug)]
+pub struct InventoryItem {
+    id: ActiveItemId,
+    item: HeldItemType,
+    //slot: usize,
+    equipped: bool,
+}
+
+#[derive(Debug)]
+pub struct BankItem {
+    id: ActiveItemId,
+    item: HeldItemType,
+}
+
+#[derive(Debug)]
+pub enum FloorItemType {
+    Individual(ItemDetail),
+    Stacked(Tool, usize),
+    Meseta(Meseta),
+}
+
+impl FloorItemType {
+    pub fn as_client_bytes(&self) -> [u8; 16] {
+        match self {
+            FloorItemType::Individual(item) => {
+                match &item {
+                    ItemDetail::Weapon(w) => w.as_bytes(),
+                    ItemDetail::Armor(a) => a.as_bytes(),
+                    ItemDetail::Shield(s) => s.as_bytes(),
+                    ItemDetail::Unit(u) => u.as_bytes(),
+                    ItemDetail::Tool(t) => t.as_individual_bytes(),
+                    ItemDetail::TechniqueDisk(d) => d.as_bytes(),
+                    ItemDetail::Mag(m) => m.as_bytes(),
                 }
             },
-            ItemInstance::Meseta(m) => {
+            FloorItemType::Stacked(tool, count) => {
+                tool.as_stacked_bytes(*count)
+            },
+            FloorItemType::Meseta(m) => {
                 m.as_bytes()
             }
         }
     }
 }
 
-pub struct ActiveInventory(Vec<ActiveItem>);
+#[derive(Debug)]
+pub struct FloorItem {
+    pub id: ActiveItemId,
+    pub item: FloorItemType,
+    pub map_area: MapArea,
+    pub x: f32,
+    pub y: f32,
+    pub z: f32,
+}
 
-impl ActiveInventory {
+#[derive(Debug)]
-    pub fn as_client_inventory_items(&self) -> [InventoryItem; 30] {
+pub enum InventoryError {
+}
+
+pub struct CharacterInventory(Vec<InventoryItem>);
+
+impl CharacterInventory {
+    pub fn as_client_inventory_items(&self) -> [character::InventoryItem; 30] {
         self.0.iter()
             .enumerate()
-            .fold([InventoryItem::default(); 30], |mut inventory, (index, item)| {
+            .fold([character::InventoryItem::default(); 30], |mut inventory, (slot, item)| {
-                let bytes = item.as_client_bytes();
+                let bytes = item.item.as_client_bytes();
-                inventory[index].data1.copy_from_slice(&bytes[0..12]);
+                inventory[slot].data1.copy_from_slice(&bytes[0..12]);
-                inventory[index].data2.copy_from_slice(&bytes[12..16]);
+                inventory[slot].data2.copy_from_slice(&bytes[12..16]);
-                inventory[index].item_id = item.id.0;
+                inventory[slot].item_id = item.id.0;
-
                 // does this do anything?
-                inventory[index].equipped = match item.item {
+                inventory[slot].equipped = if item.equipped { 1 } else { 0 };
-                    ItemInstance::Individual(ItemEntity {location: ItemLocation::Inventory{ equipped: true, ..}, ..}) => 1,
-                    _ => 0,
-                };
                 // because this actually equips the item
-                inventory[index].flags |= match item.item {
+                inventory[slot].flags |= if item.equipped { 8 } else { 0 };
-                    ItemInstance::Individual(ItemEntity {location: ItemLocation::Inventory{ equipped: true, ..}, ..}) => 8,
-                    _ => 0,
-                };
                 inventory
             })
     }
 
+    pub fn add_item(&mut self, item: InventoryItem) -> Result<usize, InventoryError> {
+        self.0.push(item);
+        Ok(self.count() - 1)
+    }
+
     pub fn count(&self) -> usize {
         self.0.len()
     }
 }
 
-fn inventory_item_index(item: &ItemInstance) -> usize {
+
-    match item {
+#[derive(Debug)]
-        ItemInstance::Individual(i) => {
+pub enum ItemManagerError {
-            match i.location {
+    EntityGatewayError,
-                ItemLocation::Inventory{index, ..} => index,
+    CouldNotAddToInventory(FloorItem),
-                _ => panic!()
-            }
-        },
-        ItemInstance::Stacked(i) => {
-            match i[0].location {
-                ItemLocation::Inventory{index, ..} => index,
-                _ => panic!()
-            }
-        },
-        _ => panic!(),
-    }
 }
 
-pub struct ActiveItemOnFloor {
+pub struct ItemManager {
-    pub map_area: MapArea,
+    id: usize,
-    pub x: f32,
+    active_to_entity: HashMap<ActiveItemId, ActiveItemEntityId>,
-    pub y: f32,
-    pub z: f32,
-    pub item: ActiveItem,
 }
 
-fn stack_items(items: Vec<ItemEntity>) -> Vec<ItemInstance> {
+impl ItemManager {
-    let mut stacks = HashMap::new();
+    pub fn new() -> ItemManager {
-
+        ItemManager {
-    for item in items {
-        stacks.entry(item.item.item_type()).or_insert(Vec::new()).push(item);
-    }
-
-    stacks.into_iter()
-        .map(|(_, items)| {
-            match items[0].item.is_stackable() {
-                true => {
-                    vec![ItemInstance::Stacked(items)]
-                },
-                false => {
-                    items.into_iter().map(|i| {
-                        ItemInstance::Individual(i)
-                    }).collect()
-                }
-            }
-        })
-        .flatten()
-        .collect()
-}
-
-struct ActiveBank([Option<ActiveItemId>; 200]);
-
-pub struct ActiveItemDatabase {
-    id: u32,
-}
-
-impl ActiveItemDatabase {
-    pub fn new() -> ActiveItemDatabase {
-        ActiveItemDatabase {
             id: 0,
+            active_to_entity: HashMap::new()
         }
     }
 
-    fn activate_item(&mut self, item: ItemInstance) -> ActiveItem {
+    fn next_id(&mut self) -> ActiveItemId {
         self.id += 1;
-        ActiveItem {
+        ActiveItemId(self.id as u32)
-            id: ActiveItemId(self.id),
-            item: item,
-        }
     }
 
-    // TODO: deactivate item
+    pub fn get_character_inventory<EG: EntityGateway>(&mut self, entity_gateway: &mut EG, character: &CharacterEntity) -> CharacterInventory {
-
-    pub fn get_character_inventory<EG: EntityGateway>(&mut self, entity_gateway: &mut EG, character: &CharacterEntity) -> ActiveInventory {
         let items = entity_gateway.get_items_by_character(&character);
         let inventory_items = items.into_iter()
-            .filter(|item| {
+            .filter_map(|item| {
                 match item.location {
-                    ItemLocation::Inventory{..} => true,
+                    ItemLocation::Inventory{slot, equipped, ..} => Some((item.id, item.item, slot, equipped)),
-                    _ => false,
+                    _ => None,
                 }
-            }).collect();
+            })
-        let mut stacked = stack_items(inventory_items);
+            .fold(BTreeMap::new(), |mut acc, (id, item, slot, equipped)| {
-        stacked.sort_by(|a, b| {
+                if item.is_stackable() {
-            inventory_item_index(a).partial_cmp(&inventory_item_index(b)).unwrap()
+                    if let ItemDetail::Tool(tool) = item {
-        });
+                        let stacked = acc.entry(slot).or_insert((HeldItemType::Stacked(tool, 0), ActiveItemEntityId::Stacked(Vec::new()), false));
-        let activated = stacked.into_iter().map(|i| self.activate_item(i));
+                        if let HeldItemType::Stacked(_, ref mut item_count) = stacked.0 {
-        ActiveInventory(activated.take(30).collect())
+                            *item_count += 1;
+                        }
+                        if let ActiveItemEntityId::Stacked(ref mut id_list) = stacked.1 {
+                            id_list.push(id);
+                        }
+                    }
+                }
+                else {
+                    acc.insert(slot, (HeldItemType::Individual(item), ActiveItemEntityId::Individual(id), equipped));
+                }
+
+                acc
+            })
+            .into_iter()
+            .map(|(_slot, (held_item, entity_id, equipped))| {
+                let id = self.next_id();
+                self.active_to_entity.insert(id, entity_id);
+                InventoryItem {
+                    id: id,
+                    item: held_item,
+                    equipped: equipped,
+                }
+            });
+        CharacterInventory(inventory_items.take(30).collect())
     }
     
-    pub fn activate_item_drop<EG: EntityGateway>(&mut self, entity_gateway: &mut EG, item_drop: ItemDrop) -> Result<ActiveItemOnFloor, ShipError> {
+    pub fn drop_item_on_local_floor<EG: EntityGateway>(&mut self, entity_gateway: &mut EG, character: &CharacterEntity, item_drop: ItemDrop) -> Result<FloorItem, ItemManagerError> {
-        let item_detail = match item_drop.item {
+        let item = match item_drop.item {
-            ItemDropType::Weapon(w) => Some(ItemDetail::Weapon(w)),
+            ItemDropType::Weapon(w) => FloorItemType::Individual(ItemDetail::Weapon(w)),
-            ItemDropType::Armor(w) => Some(ItemDetail::Armor(w)),
+            ItemDropType::Armor(w) => FloorItemType::Individual(ItemDetail::Armor(w)),
-            ItemDropType::Shield(w) => Some(ItemDetail::Shield(w)),
+            ItemDropType::Shield(w) => FloorItemType::Individual(ItemDetail::Shield(w)),
-            ItemDropType::Unit(w) => Some(ItemDetail::Unit(w)),
+            ItemDropType::Unit(w) => FloorItemType::Individual(ItemDetail::Unit(w)),
-            ItemDropType::Tool(w) => Some(ItemDetail::Tool(w)),
+            ItemDropType::TechniqueDisk(w) => FloorItemType::Individual(ItemDetail::TechniqueDisk(w)),
-            ItemDropType::TechniqueDisk(w) => Some(ItemDetail::TechniqueDisk(w)),
+            ItemDropType::Mag(w) => FloorItemType::Individual(ItemDetail::Mag(w)),
-            ItemDropType::Mag(w) => Some(ItemDetail::Mag(w)),
+            ItemDropType::Tool(w) => FloorItemType::Individual(ItemDetail::Tool(w)),
-            ItemDropType::Meseta(_) => None
+            //ItemDropType::Tool(t) if t.is_stackable() => FloorItemType::Stacked(t, ),
+            //ItemDropType::Tool(t) if !t.is_stackable() => FloorItemType::Individual(ItemDetail::Tool(w)),
+            ItemDropType::Meseta(m) => FloorItemType::Meseta(Meseta(m))
         };
-        let item_instance = match item_detail {
+        
-            Some(item) => {
+        let active_entity_ids = match &item {
-                let item_entity = entity_gateway.create_item(NewItemEntity {
+            FloorItemType::Individual(i) => {
-                    item: item,
+                let entity = entity_gateway.create_item(NewItemEntity {
-                    location: ItemLocation::Floor {
+                    item: i.clone(),
+                    location: ItemLocation::LocalFloor {
+                        character_id: character.id,
                         map_area: item_drop.map_area,
                         x: item_drop.x,
                         y: item_drop.y,
                         z: item_drop.z,
                     }
-                }).unwrap();
+                }).ok_or(ItemManagerError::EntityGatewayError)?;
-                stack_items(vec![item_entity]).pop().ok_or(ShipError::ItemError)?
+                ActiveItemEntityId::Individual(entity.id)
             },
-            None => {
+            FloorItemType::Stacked(tool, count) => {
-                let meseta = match item_drop.item {
+                let entities = (0..*count).map(|_| {
-                    ItemDropType::Meseta(m) => m,
+                    entity_gateway.create_item(NewItemEntity {
-                    _ => panic!(),
+                        item: ItemDetail::Tool(*tool),
-                };
+                        location: ItemLocation::LocalFloor {
-                ItemInstance::Meseta(Meseta(meseta))
+                            character_id: character.id,
-            }
+                            map_area: item_drop.map_area,
+                            x: item_drop.x,
+                            y: item_drop.y,
+                            z: item_drop.z,
+                        }
+                    })})
+                    .map(|entity| -> Result<ItemEntityId, ItemManagerError> {
+                        let e = entity.ok_or(ItemManagerError::EntityGatewayError)?;
+                        Ok(e.id)
+                    });
+                ActiveItemEntityId::Stacked(entities.collect::<Result<Vec<_>, _>>()?)
+            },
+            FloorItemType::Meseta(m) => ActiveItemEntityId::Meseta(m.clone()),
         };
-        let active_item = self.activate_item(item_instance);
 
-        Ok(ActiveItemOnFloor {
+        let id = self.next_id();
+        self.active_to_entity.insert(id, active_entity_ids);
+        Ok(FloorItem {
+            id: id,
+            item: item,
             map_area: item_drop.map_area,
             x: item_drop.x,
             y: item_drop.y,
             z: item_drop.z,
-            item: active_item,
         })
     }
-}
 
-#[cfg(test)]
+    pub fn move_item_from_floor_to_inventory<EG: EntityGateway>(&mut self, entity_gateway: &mut EG, client: &mut ClientState, floor_item: FloorItem) -> Result<(), ItemManagerError> {
-mod test {
+        match floor_item.item {
-    use super::*;
+            FloorItemType::Individual(item) => {
-    use crate::entity::character::CharacterEntityId;
+                let inventory_item = InventoryItem {
-    use crate::entity::item;
+                    id: floor_item.id,
-    use crate::entity::item::{ItemEntity, ItemDetail, ItemEntityId, ItemLocation};
+                    item: HeldItemType::Individual(item.clone()),
-    use crate::entity::item::tool::Tool;
+                    equipped: false,
-    #[test]
+                };
-    fn test_stack_items() {
-        let item1 = ItemEntity {
-            id: ItemEntityId(1),
-            location: ItemLocation::Inventory {
-                character_id: CharacterEntityId(0),
-                index: 0,
-                equipped: false,
-            },
-            item: ItemDetail::Weapon(item::weapon::Weapon {
-                weapon: item::weapon::WeaponType::Saber,
-                grind: 0,
-                special: None,
-                attrs: [None; 3],
-                tekked: true,
-            })
-        };
-        let item2 = ItemEntity {
-            id: ItemEntityId(2),
-            location: ItemLocation::Inventory {
-                character_id: CharacterEntityId(0),
-                index: 1,
-                equipped: false,
-            },
-            item: ItemDetail::Tool(Tool {
-                tool: item::tool::ToolType::Monofluid,
-            })
-        };
-        let item3 = ItemEntity {
-            id: ItemEntityId(3),
-            location: ItemLocation::Inventory {
-                character_id: CharacterEntityId(0),
-                index: 2,
-                equipped: false,
-            },
-            item: ItemDetail::Weapon(item::weapon::Weapon {
-                weapon: item::weapon::WeaponType::Handgun,
-                grind: 12,
-                special: None,
-                attrs: [None; 3],
-                tekked: true,
-            })
-        };
-        let item4 = ItemEntity {
-            id: ItemEntityId(4),
-            location: ItemLocation::Inventory {
-                character_id: CharacterEntityId(0),
-                index: 1,
-                equipped: false,
-            },
-            item: ItemDetail::Tool(Tool {
-                tool: item::tool::ToolType::Monofluid,
-            })
-        };
-        let item5 = ItemEntity {
-            id: ItemEntityId(5),
-            location: ItemLocation::Inventory {
-                character_id: CharacterEntityId(0),
-                index: 1,
-                equipped: false,
-            },
-            item: ItemDetail::Tool(Tool {
-                tool: item::tool::ToolType::Monofluid,
-            })
-        };
-        let item6 = ItemEntity {
-            id: ItemEntityId(6),
-            location: ItemLocation::Inventory {
-                character_id: CharacterEntityId(0),
-                index: 3,
-                equipped: false,
-            },
-            item: ItemDetail::Weapon(item::weapon::Weapon {
-                weapon: item::weapon::WeaponType::Handgun,
-                grind: 12,
-                special: None,
-                attrs: [None; 3],
-                tekked: true,
-            })
-        };
-        let item7 = ItemEntity {
-            id: ItemEntityId(7),
-            location: ItemLocation::Inventory {
-                character_id: CharacterEntityId(0),
-                index: 4,
-                equipped: false,
-            },
-            item: ItemDetail::Tool(Tool {
-                tool: item::tool::ToolType::Monomate,
-            })
-        };
-        let item8 = ItemEntity {
-            id: ItemEntityId(8),
-            location: ItemLocation::Inventory {
-                character_id: CharacterEntityId(0),
-                index: 4,
-                equipped: false,
-            },
-            item: ItemDetail::Tool(Tool {
-                tool: item::tool::ToolType::Monomate,
-            })
-        };
-        let item9 = ItemEntity {
-            id: ItemEntityId(9),
-            location: ItemLocation::Inventory {
-                character_id: CharacterEntityId(0),
-                index: 4,
-                equipped: false,
-            },
-            item: ItemDetail::Tool(Tool {
-                tool: item::tool::ToolType::Monomate,
-            })
-        };
-        let item_vec = vec![item1.clone(), item2.clone(), item3.clone(), item4.clone(), item5.clone(), item6.clone(), item7.clone(), item8.clone(), item9.clone()];
 
-        let stacked = stack_items(item_vec);
+                let item_entity_id = self.active_to_entity.get(&floor_item.id).unwrap(); // TODO: unwrap
+                if let ActiveItemEntityId::Individual(item_id) = item_entity_id {
+                    let slot = client.inventory.add_item(inventory_item).unwrap(); // TODO: unwrap
+                    entity_gateway.save_item(&ItemEntity {
+                        id: *item_id,
+                        item: item,
+                        location: ItemLocation::Inventory {
+                            character_id: client.character.id,
+                        slot: slot,
+                            equipped: false,
+                        },
+                    }); // TODO: error check
+                } // else something went very wrong TODO: log it
+            },
+            FloorItemType::Stacked(tool, usize) => {
+                let inventory_item = InventoryItem {
+                    id: floor_item.id,
+                    item: HeldItemType::Stacked(tool, usize),
+                    equipped: false,
+                };
 
-        assert!(stacked.len() == 5);
+                let item_entity_id = self.active_to_entity.get(&floor_item.id).unwrap(); // TODO: unwrap
-        assert!(stacked.iter().filter(|k| {
+                if let ActiveItemEntityId::Stacked(item_ids) = item_entity_id {
-            **k == ItemInstance::Individual(item6.clone())
+                    let slot = client.inventory.add_item(inventory_item).unwrap(); // TODO: unwrap
-        }).count() == 1);
+                    for item_id in item_ids {
+                        entity_gateway.save_item(&ItemEntity {
+                            id: *item_id,
+                            item: ItemDetail::Tool(tool),
+                            location: ItemLocation::Inventory {
+                                character_id: client.character.id,
+                                slot: slot,
+                                equipped: false,
+                            },
+                        }); // TODO: error check
+                    }
+                } // else something went very wrong TODO: log it
+            },
+            FloorItemType::Meseta(meseta) => {
+                client.character.meseta += meseta.0;
+            }
+        }
 
-        assert!(stacked.iter().filter(|k| {
+        Ok(())
-            **k == ItemInstance::Individual(item3.clone())
-        }).count() == 1);
-
-        assert!(stacked.iter().filter(|k| {
-            **k == ItemInstance::Individual(item1.clone())
-        }).count() == 1);
-
-        assert!(stacked.iter().filter(|k| {
-            **k == ItemInstance::Stacked(vec![item2.clone(), item4.clone(), item5.clone()])
-        }).count() == 1);
-
-        assert!(stacked.iter().filter(|k| {
-            **k == ItemInstance::Stacked(vec![item7.clone(), item8.clone(), item9.clone()])
-        }).count() == 1);
     }
 }

src/ship/packet/builder/message.rs

@@ -1,10 +1,11 @@
 use libpso::packet::messages::*;
 use crate::ship::ship::{ShipError};
-use crate::ship::items::{ActiveItemOnFloor};
+use crate::ship::items::{FloorItem};
+use crate::ship::location::AreaClient;
 use std::convert::TryInto;
 
 
-pub fn item_drop(client: u8, target: u8, item_drop: &ActiveItemOnFloor) -> Result<ItemDrop, ShipError> {
+pub fn item_drop(client: u8, target: u8, item_drop: &FloorItem) -> Result<ItemDrop, ShipError> {
     let item_bytes = item_drop.item.as_client_bytes();
     Ok(ItemDrop {
         client: client,
@@ -16,8 +17,32 @@ pub fn item_drop(client: u8, target: u8, item_drop: &ActiveItemOnFloor) -> Resul
         z: item_drop.z,
         y: item_drop.y,
         item_bytes: item_bytes[0..12].try_into()?,
-        item_id: item_drop.item.id.0,
+        item_id: item_drop.id.0,
         item_bytes2: item_bytes[12..16].try_into()?,
         unknown2: 0,
     })
 }
+
+pub fn create_item(area_client: AreaClient, item: &FloorItem) -> Result<CreateItem, ShipError> {
+    let bytes = item.item.as_client_bytes();
+    Ok(CreateItem {
+        client: area_client.local_client.id(),
+        target: 0,
+        item_data: bytes[0..12].try_into()?,
+        item_id: item.id.0,
+        item_data2: bytes[12..16].try_into()?,
+        unknown: 0,
+    })
+}
+
+pub fn remove_item_from_floor(area_client: AreaClient, item: &FloorItem) -> Result<RemoveItemFromFloor, ShipError> {
+    Ok(RemoveItemFromFloor {
+        client: area_client.local_client.id(),
+        target: 0,
+        client_id: area_client.local_client.id(),
+        unknown: 0,
+        area: item.map_area.area_value(),
+        unknown2: 0,
+        item_id: item.id.0,
+    })
+}

src/ship/packet/handler/auth.rs

@@ -4,13 +4,13 @@ use crate::common::serverstate::ClientId;
 use crate::ship::ship::{SendShipPacket, ShipError, ClientState, Clients};
 use crate::login::login::get_login_status;
 use crate::entity::gateway::EntityGateway;
-use crate::ship::items::ActiveItemDatabase;
+use crate::ship::items::ItemManager;
 
 pub fn validate_login<EG: EntityGateway>(id: ClientId,
                                          pkt: &Login,
                                          entity_gateway: &mut EG,
                                          clients: &mut Clients,
-                                         item_database: &mut ActiveItemDatabase,
+                                         item_manager: &mut ItemManager,
                                          ship_name: &String)
                                          -> Result<Vec<SendShipPacket>, ShipError> {
     Ok(match get_login_status(entity_gateway, pkt) {
@@ -26,7 +26,7 @@ pub fn validate_login<EG: EntityGateway>(id: ClientId,
                 .clone();
             let settings = entity_gateway.get_user_settings_by_user(&user)
                 .ok_or(ShipError::ClientNotFound(id))?;
-            let inventory = item_database.get_character_inventory(entity_gateway, &character);
+            let inventory = item_manager.get_character_inventory(entity_gateway, &character);
 
             clients.insert(id, ClientState::new(user, settings, character, inventory, pkt.session));
             vec![SendShipPacket::LoginResponse(response), SendShipPacket::ShipBlockList(ShipBlockList::new(&&ship_name, 3))]

src/ship/packet/handler/direct_message.rs

@@ -4,10 +4,10 @@ use libpso::packet::messages::*;
 use crate::common::serverstate::ClientId;
 use crate::ship::ship::{SendShipPacket, ShipError, Clients, Rooms};
 use crate::ship::location::{ClientLocation, ClientLocationError};
-use crate::ship::drops::{ItemDrop};
+use crate::ship::drops::ItemDrop;
-use crate::ship::items::ActiveItemDatabase;
+use crate::ship::items::{ItemManager, ItemManagerError};
 use crate::entity::gateway::EntityGateway;
-use libpso::{utf8_to_utf16_array};
+use libpso::utf8_to_utf16_array;
 use crate::ship::packet::builder;
 
 fn send_to_client(id: ClientId, target: u8, msg: DirectMessage, client_location: &ClientLocation)
@@ -50,9 +50,11 @@ pub fn request_item<EG>(id: ClientId,
                         client_location: &ClientLocation,
                         clients: &mut Clients,
                         rooms: &mut Rooms,
-                        active_items: &mut ActiveItemDatabase)
+                        item_manager: &mut ItemManager)
                         -> Result<Box<dyn Iterator<Item = (ClientId, SendShipPacket)> + Send>, ShipError>
-where EG: EntityGateway {
+where
+    EG: EntityGateway
+{
     let room_id = client_location.get_room(id).map_err(|err| -> ClientLocationError { err.into() })?;
     let room = rooms.get_mut(room_id.0)
         .ok_or_else(|| ShipError::InvalidRoom(room_id.0 as u32))?
@@ -64,7 +66,6 @@ where EG: EntityGateway {
         return Err(ShipError::MonsterAlreadyDroppedItem(id, request_item.enemy_id))
     }
 
-    let _area_client = client_location.get_local_client(id).map_err(|err| -> ClientLocationError { err.into() })?;
     let clients_in_area = client_location.get_clients_in_room(room_id).map_err(|err| -> ClientLocationError { err.into() })?;
 
     let item_drop_packets = clients_in_area.into_iter()
@@ -82,11 +83,12 @@ where EG: EntityGateway {
                 z: request_item.z,
                 item: item_drop_type,
             };
-
+            //let floor_item_instance = FloorItemInstance::from_item_drop(entity_gateway, item_drop)?;
-            let activated_item = active_items.activate_item_drop(entity_gateway, item_drop)?;
+            //let activated_item = item_manager.activate_floor_item(floor_item_instance);
             let client = clients.get_mut(&area_client.client).ok_or(ShipError::ClientNotFound(area_client.client))?;
-            let item_drop_msg = builder::message::item_drop(request_item.client, request_item.target, &activated_item)?;
+            let floor_item = item_manager.drop_item_on_local_floor(entity_gateway, &client.character, item_drop).unwrap(); // TODO: unwrap
-            client.floor_items.push(activated_item);
+            let item_drop_msg = builder::message::item_drop(request_item.client, request_item.target, &floor_item)?;
+            client.floor_items.push(floor_item);
             Ok((area_client.client, SendShipPacket::Message(Message::new(GameMessage::ItemDrop(item_drop_msg)))))
         })
         .filter_map(|item_drop_pkt| {
@@ -97,3 +99,83 @@ where EG: EntityGateway {
 
     Ok(Box::new(item_drop_packets.into_iter()))
 }
+
+pub fn pickup_item<EG>(id: ClientId,
+                       pickup_item: &PickupItem,
+                       entity_gateway: &mut EG,
+                       client_location: &ClientLocation,
+                       clients: &mut Clients,
+                       rooms: &mut Rooms,
+                       item_manager: &mut ItemManager)
+                       -> Result<Box<dyn Iterator<Item = (ClientId, SendShipPacket)> + Send>, ShipError>
+where
+    EG: EntityGateway
+{
+    #[derive(Copy, Clone)]
+    enum ItemFloor {
+        Local,
+        Shared
+    }
+
+    let mut client = clients.get_mut(&id).ok_or(ShipError::ClientNotFound(id))?;
+    let area_client = client_location.get_local_client(id).map_err(|err| -> ClientLocationError { err.into() })?;
+    let room_id = client_location.get_room(id).map_err(|err| -> ClientLocationError { err.into() })?;
+    let room = rooms.get_mut(room_id.0)
+        .ok_or_else(|| ShipError::InvalidRoom(room_id.0 as u32))?
+        .as_mut()
+        .ok_or_else(|| ShipError::InvalidRoom(room_id.0 as u32))?;
+    let clients_in_area = client_location.get_clients_in_room(room_id).map_err(|err| -> ClientLocationError { err.into() })?;
+
+    let (item_index, (_, floor)) = client.floor_items.iter()
+        .zip(std::iter::repeat(ItemFloor::Local))
+        .enumerate()
+        .filter(|(_, (item, _))| item.id.0 == pickup_item.item_id)
+        .next()
+        .or_else(|| {
+            room.floor_items.iter()
+                .zip(std::iter::repeat(ItemFloor::Shared))
+                .enumerate()
+                .filter(|(_, (item, _))| item.id.0 == pickup_item.item_id)
+                .next()
+        })
+        .ok_or(ShipError::PickUpInvalidItemId(pickup_item.item_id))?;
+
+    let item = match floor {
+        ItemFloor::Local => client.floor_items.remove(item_index),
+        ItemFloor::Shared => room.floor_items.remove(item_index),
+    };
+
+    let remove_item = builder::message::remove_item_from_floor(area_client, &item)?;
+    let create_item = builder::message::create_item(area_client, &item)?;
+    //match client.inventory.add_item(item.item) {
+    match item_manager.move_item_from_floor_to_inventory(entity_gateway, &mut client, item) {
+        Ok(_) => {
+            Ok(Box::new(Vec::new().into_iter()
+                        .chain(clients_in_area.clone().into_iter()
+                               .filter(move |c| {
+                                   match floor {
+                                       ItemFloor::Local => c.client == id,
+                                       ItemFloor::Shared => true,
+                                   }
+                               })
+                               .map(move |c| {
+                                   (c.client, SendShipPacket::Message(Message::new(GameMessage::RemoveItemFromFloor(remove_item.clone()))))
+                               }))
+                        .chain(clients_in_area.into_iter().map(move |c| {
+                            (c.client, SendShipPacket::Message(Message::new(GameMessage::CreateItem(create_item.clone()))))
+                        })))
+            )
+        },
+        Err(err) => {
+            // inventory full, probably
+            if let ItemManagerError::CouldNotAddToInventory(item) = err {
+                match floor {
+                    ItemFloor::Local => client.floor_items.push(item),
+                    ItemFloor::Shared => room.floor_items.push(item),
+                }
+            }
+            Ok(Box::new(None.into_iter()))
+        }
+    }
+}
+

src/ship/room.rs

@@ -5,6 +5,7 @@ use rand::Rng;
 use crate::ship::map::Maps;
 use crate::ship::drops::DropTable;
 use crate::entity::character::SectionID;
+use crate::ship::items::FloorItem;
 
 #[derive(Debug)]
 pub enum RoomCreationError {
@@ -152,6 +153,7 @@ pub struct RoomState {
     pub section_id: SectionID,
     pub random_seed: u32,
     pub bursting: bool,
+    pub floor_items: Vec<FloorItem>,
     // items on ground
     // enemy info
 }
@@ -231,6 +233,7 @@ impl RoomState {
             section_id: section_id,
             drop_table: Box::new(DropTable::new(room_mode.episode(), room_mode.difficulty(), section_id)),
             bursting: false,
+            floor_items: Vec::new(),
         })
     }
 

src/ship/ship.rs

@@ -45,6 +45,7 @@ pub enum ShipError {
     MonsterAlreadyDroppedItem(ClientId, u16),
     SliceError(#[from] std::array::TryFromSliceError),
     ItemError, // TODO: refine this
+    PickUpInvalidItemId(u32),
 }
 
 #[derive(Debug)]
@@ -157,14 +158,14 @@ pub struct ClientState {
     pub character: CharacterEntity,
     session: Session,
     //guildcard: GuildCard,
-    pub inventory: items::ActiveInventory,
+    pub inventory: items::CharacterInventory,
     //bank: Bank,
-    pub floor_items: Vec<items::ActiveItemOnFloor>,
+    pub floor_items: Vec<items::FloorItem>,
     pub block: u32,
 }
 
 impl ClientState {
-    pub fn new(user: UserAccountEntity, settings: UserSettingsEntity, character: CharacterEntity, inventory: items::ActiveInventory, /*bank: Bank,*/ session: Session) -> ClientState {
+    pub fn new(user: UserAccountEntity, settings: UserSettingsEntity, character: CharacterEntity, inventory: items::CharacterInventory, /*bank: Bank,*/ session: Session) -> ClientState {
         ClientState {
             user: user,
             settings: settings,
@@ -186,7 +187,7 @@ pub struct ShipServerState<EG: EntityGateway> {
     level_table: CharacterLevelTable,
     name: String,
     rooms: Rooms,
-    item_database: items::ActiveItemDatabase,
+    item_database: items::ItemManager,
 }
 
 impl<EG: EntityGateway> ShipServerState<EG> {
@@ -198,7 +199,7 @@ impl<EG: EntityGateway> ShipServerState<EG> {
             level_table: CharacterLevelTable::new(),
             name: "Sona-Nyl".into(),
             rooms: [None; MAX_ROOMS],
-            item_database: items::ActiveItemDatabase::new(),
+            item_database: items::ItemManager::new(),
         }
     }
 
@@ -226,6 +227,9 @@ impl<EG: EntityGateway> ShipServerState<EG> {
             GameMessage::RequestItem(request_item) => {
                 handler::direct_message::request_item(id, request_item, &mut self.entity_gateway, &mut self.client_location, &mut self.clients, &mut self.rooms, &mut self.item_database).unwrap()
             },
+            GameMessage::PickupItem(pickup_item) => {
+                handler::direct_message::pickup_item(id, pickup_item, &mut self.entity_gateway, &mut self.client_location, &mut self.clients, &mut self.rooms, &mut self.item_database).unwrap()
+            },
             _ => {
                 let cmsg = msg.clone();
                 Box::new(self.client_location.get_all_clients_by_client(id).unwrap().into_iter()