Trade implementation progress.

- Server messages now bring up the trade window.
- When a trade is declined, it closes the window on both clients.

client/src/lib.rs

@@ -32,6 +32,7 @@ use common::{
     recipe::RecipeBook,
     span,
     terrain::{block::Block, neighbors, BiomeKind, SitesKind, TerrainChunk, TerrainChunkSize},
+    trade::{PendingTrade, TradeActionMsg},
     uid::{Uid, UidAllocator},
     vol::RectVolSize,
 };
@@ -141,6 +142,8 @@ pub struct Client {
     group_members: HashMap<Uid, group::Role>,
     // Pending invites that this client has sent out
     pending_invites: HashSet<Uid>,
+    // The pending trade the client is involved in, and it's id
+    pending_trade: Option<(usize, PendingTrade)>,
 
     _network: Network,
     participant: Option<Participant>,
@@ -429,6 +432,7 @@ impl Client {
             group_leader: None,
             group_members: HashMap::new(),
             pending_invites: HashSet::new(),
+            pending_trade: None,
 
             _network: network,
             participant: Some(participant),
@@ -642,6 +646,15 @@ impl Client {
         }
     }
 
+    pub fn decline_trade(&mut self) {
+        if let Some((id, _)) = self.pending_trade.take() {
+            self.send_msg(ClientGeneral::UpdatePendingTrade(
+                id,
+                TradeActionMsg::Decline,
+            ));
+        }
+    }
+
     pub fn is_dead(&self) -> bool {
         self.state
             .ecs()
@@ -766,6 +779,8 @@ impl Client {
 
     pub fn pending_invites(&self) -> &HashSet<Uid> { &self.pending_invites }
 
+    pub fn pending_trade(&self) -> &Option<(usize, PendingTrade)> { &self.pending_trade }
+
     pub fn send_group_invite(&mut self, invitee: Uid) {
         self.send_msg(ClientGeneral::ControlEvent(ControlEvent::GroupManip(
             GroupManip::Invite(invitee),
@@ -1559,6 +1574,13 @@ impl Client {
                         impulse,
                     });
             },
+            ServerGeneral::UpdatePendingTrade(id, trade) => {
+                tracing::info!("UpdatePendingTrade {:?} {:?}", id, trade);
+                self.pending_trade = Some((id, trade));
+            },
+            ServerGeneral::DeclinedTrade => {
+                self.pending_trade = None;
+            },
             _ => unreachable!("Not a in_game message"),
         }
         Ok(())

common/net/src/msg/server.rs

@@ -7,8 +7,8 @@ use common::{
     outcome::Outcome,
     recipe::RecipeBook,
     resources::TimeOfDay,
-    trade::PendingTrade,
     terrain::{Block, TerrainChunk},
+    trade::PendingTrade,
     uid::Uid,
 };
 use hashbrown::HashMap;
@@ -124,6 +124,7 @@ pub enum ServerGeneral {
     /// Send a popup notification such as "Waypoint Saved"
     Notification(Notification),
     UpdatePendingTrade(usize, PendingTrade),
+    DeclinedTrade,
 }
 
 impl ServerGeneral {
@@ -230,7 +231,8 @@ impl ServerMsg {
                         | ServerGeneral::SetViewDistance(_)
                         | ServerGeneral::Outcomes(_)
                         | ServerGeneral::Knockback(_)
-                        | ServerGeneral::UpdatePendingTrade(_, _) => {
+                        | ServerGeneral::UpdatePendingTrade(_, _)
+                        | ServerGeneral::DeclinedTrade => {
                             c_type == ClientType::Game && presence.is_some()
                         },
                         // Always possible

common/src/event.rs

@@ -1,4 +1,7 @@
-use crate::{character::CharacterId, comp, rtsim::RtSimEntity, uid::Uid, util::Dir, Explosion};
+use crate::{
+    character::CharacterId, comp, rtsim::RtSimEntity, trade::TradeActionMsg, uid::Uid, util::Dir,
+    Explosion,
+};
 use comp::{
     item::{Item, Reagent},
     Ori, Pos,
@@ -80,6 +83,7 @@ pub enum ServerEvent {
     DisableLantern(EcsEntity),
     NpcInteract(EcsEntity, EcsEntity),
     InitiateTrade(EcsEntity, EcsEntity),
+    ProcessTradeAction(EcsEntity, usize, TradeActionMsg),
     Mount(EcsEntity, EcsEntity),
     Unmount(EcsEntity),
     Possess(Uid, Uid),

common/src/trade.rs

@@ -1,4 +1,7 @@
-use crate::{comp::inventory::slot::InvSlotId, uid::Uid};
+use crate::{
+    comp::inventory::slot::InvSlotId,
+    uid::Uid,
+};
 use hashbrown::HashMap;
 use serde::{Deserialize, Serialize};
 use tracing::warn;
@@ -12,6 +15,7 @@ pub enum TradeActionMsg {
     RemoveItem { item: InvSlotId, quantity: usize },
     Phase1Accept,
     Phase2Accept,
+    Decline,
 }
 
 /// Items are not removed from the inventory during a PendingTrade: all the
@@ -45,11 +49,15 @@ impl PendingTrade {
     pub fn in_phase1(&self) -> bool { !self.phase1_accepts[0] || !self.phase1_accepts[1] }
 
     pub fn in_phase2(&self) -> bool {
-        (self.phase1_accepts[0] && self.phase1_accepts[1]) && (!self.phase2_accepts[0] || !self.phase2_accepts[1])
+        (self.phase1_accepts[0] && self.phase1_accepts[1])
+            && (!self.phase2_accepts[0] || !self.phase2_accepts[1])
     }
 
     pub fn should_commit(&self) -> bool {
-        self.phase1_accepts[0] && self.phase1_accepts[1] && self.phase2_accepts[0] && self.phase2_accepts[1]
+        self.phase1_accepts[0]
+            && self.phase1_accepts[1]
+            && self.phase2_accepts[0]
+            && self.phase2_accepts[1]
     }
 
     pub fn which_party(&self, party: Uid) -> Option<usize> {
@@ -85,6 +93,7 @@ impl PendingTrade {
                     self.phase2_accepts[who] = true;
                 }
             },
+            Decline => {},
         }
     }
 }
@@ -108,23 +117,37 @@ impl Trades {
             if let Some(party) = trade.which_party(who) {
                 trade.process_msg(party, msg);
             } else {
-                warn!("An entity who is not a party to trade {} tried to modify it", id);
+                warn!(
+                    "An entity who is not a party to trade {} tried to modify it",
+                    id
+                );
             }
         } else {
             warn!("Attempt to modify nonexistent trade id {}", id);
         }
     }
 
-    pub fn decline_trade(&mut self, id: usize, who: Uid) {
+    pub fn decline_trade(&mut self, id: usize, who: Uid) -> Option<Uid> {
+        let mut to_notify = None;
         if let Some(trade) = self.trades.remove(&id) {
-            if let None = trade.which_party(who) {
+            match trade.which_party(who) {
-                warn!("An entity who is not a party to trade {} tried to decline it", id);
+                Some(i) => {
+                    // let the other person know the trade was declined
+                    to_notify = Some(trade.parties[1 - i])
+                },
+                None => {
+                    warn!(
+                        "An entity who is not a party to trade {} tried to decline it",
+                        id
+                    );
                     // put it back
                     self.trades.insert(id, trade);
+                },
             }
         } else {
             warn!("Attempt to decline nonexistent trade id {}", id);
         }
+        to_notify
     }
 }
 

server/src/client.rs

@@ -89,7 +89,8 @@ impl Client {
                     | ServerGeneral::SetViewDistance(_)
                     | ServerGeneral::Outcomes(_)
                     | ServerGeneral::Knockback(_)
-                    | ServerGeneral::UpdatePendingTrade(_, _) => {
+                    | ServerGeneral::UpdatePendingTrade(_, _)
+                    | ServerGeneral::DeclinedTrade => {
                         self.in_game_stream.try_lock().unwrap().send(g)
                     },
                     // Always possible
@@ -168,7 +169,8 @@ impl Client {
                     | ServerGeneral::SetViewDistance(_)
                     | ServerGeneral::Outcomes(_)
                     | ServerGeneral::Knockback(_)
-                    | ServerGeneral::UpdatePendingTrade(_, _) => {
+                    | ServerGeneral::UpdatePendingTrade(_, _)
+                    | ServerGeneral::DeclinedTrade => {
                         PreparedMsg::new(2, &g, &self.in_game_stream)
                     },
                     // Always possible

server/src/events/group_manip.rs

@@ -240,12 +240,18 @@ pub fn handle_group(server: &mut Server, entity: specs::Entity, manip: GroupMani
                         );
                     },
                     InviteKind::Trade => {
-                        if let (Some(inviter_uid), Some(invitee_uid)) = (uids.get(inviter).copied(), uids.get(entity).copied()) {
+                        if let (Some(inviter_uid), Some(invitee_uid)) =
+                            (uids.get(inviter).copied(), uids.get(entity).copied())
+                        {
                             let mut trades = state.ecs().write_resource::<Trades>();
                             let id = trades.begin_trade(inviter_uid, invitee_uid);
                             let trade = trades.trades[&id].clone();
-                            clients.get(inviter).map(|c| c.send(ServerGeneral::UpdatePendingTrade(id, trade.clone())));
+                            clients.get(inviter).map(|c| {
-                            clients.get(entity).map(|c| c.send(ServerGeneral::UpdatePendingTrade(id, trade)));
+                                c.send(ServerGeneral::UpdatePendingTrade(id, trade.clone()))
+                            });
+                            clients
+                                .get(entity)
+                                .map(|c| c.send(ServerGeneral::UpdatePendingTrade(id, trade)));
                         }
                     },
                 }

server/src/events/interaction.rs

@@ -72,14 +72,6 @@ pub fn handle_npc_interaction(server: &mut Server, interactor: EcsEntity, npc_en
     }
 }
 
-pub fn handle_initiate_trade(server: &mut Server, interactor: EcsEntity, counterparty: EcsEntity) {
-    if let Some(uid) = server.state_mut().ecs().uid_from_entity(counterparty) {
-        handle_invite(server, interactor, uid, InviteKind::Trade);
-    } else {
-        warn!("Entity tried to trade with an entity that lacks an uid");
-    }
-}
-
 pub fn handle_mount(server: &mut Server, mounter: EcsEntity, mountee: EcsEntity) {
     let state = server.state_mut();
 

server/src/events/mod.rs

@@ -1,6 +1,7 @@
 use crate::{state_ext::StateExt, Server};
 use common::{
     event::{EventBus, ServerEvent},
+    trade::{Trades, TradeActionMsg},
     span,
 };
 use entity_creation::{
@@ -13,12 +14,13 @@ use entity_manipulation::{
 };
 use group_manip::handle_group;
 use interaction::{
-    handle_initiate_trade, handle_lantern, handle_mount, handle_npc_interaction, handle_possess,
+    handle_lantern, handle_mount, handle_npc_interaction, handle_possess,
     handle_unmount,
 };
 use inventory_manip::handle_inventory;
 use player::{handle_client_disconnect, handle_exit_ingame};
 use specs::{Entity as EcsEntity, WorldExt};
+use trade::{handle_initiate_trade, handle_process_trade_action};
 
 mod entity_creation;
 mod entity_manipulation;
@@ -26,6 +28,7 @@ mod group_manip;
 mod interaction;
 mod inventory_manip;
 mod player;
+mod trade;
 
 pub enum Event {
     ClientConnected {
@@ -107,6 +110,9 @@ impl Server {
                 ServerEvent::InitiateTrade(interactor, target) => {
                     handle_initiate_trade(self, interactor, target)
                 },
+                ServerEvent::ProcessTradeAction(entity, trade_id, msg) => {
+                    handle_process_trade_action(self, entity, trade_id, msg);
+                },
                 ServerEvent::Mount(mounter, mountee) => handle_mount(self, mounter, mountee),
                 ServerEvent::Unmount(mounter) => handle_unmount(self, mounter),
                 ServerEvent::Possess(possessor_uid, possesse_uid) => {

server/src/events/trade.rs

@@ -0,0 +1,43 @@
+use crate::{
+    Server,
+    comp::inventory::slot::InvSlotId,
+    events::group_manip::handle_invite,
+};
+use common::{
+    comp::{
+        group::InviteKind,
+    },
+    trade::{Trades, TradeActionMsg, PendingTrade},
+    uid::Uid,
+};
+use common_net::{msg::ServerGeneral, sync::WorldSyncExt};
+use specs::{world::WorldExt, Entity as EcsEntity};
+use tracing::warn;
+
+
+pub fn handle_initiate_trade(server: &mut Server, interactor: EcsEntity, counterparty: EcsEntity) {
+    if let Some(uid) = server.state_mut().ecs().uid_from_entity(counterparty) {
+        handle_invite(server, interactor, uid, InviteKind::Trade);
+    } else {
+        warn!("Entity tried to trade with an entity that lacks an uid");
+    }
+}
+
+pub fn handle_process_trade_action(server: &mut Server, entity: EcsEntity, trade_id: usize, msg: TradeActionMsg) {
+    if let Some(uid) = server.state.ecs().uid_from_entity(entity) {
+        let mut trades = server.state.ecs().write_resource::<Trades>();
+        if let TradeActionMsg::Decline = msg {
+            let to_notify = trades.decline_trade(trade_id, uid);
+            to_notify
+                .and_then(|u| server.state.ecs().entity_from_uid(u.0))
+                .map(|e| server.notify_client(e, ServerGeneral::DeclinedTrade));
+        } else {
+            trades.process_trade_action(trade_id, uid, msg);
+            if let Some(trade) = trades.trades.get(&trade_id) {
+                if trade.should_commit() {
+                    // TODO: inventory manip
+                }
+            }
+        }
+    }
+}

server/src/sys/msg/in_game.rs

@@ -158,6 +158,10 @@ impl Sys {
                     .get_mut(entity)
                     .map(|mut s| s.skill_set.unlock_skill_group(skill_group_kind));
             },
+            ClientGeneral::UpdatePendingTrade(trade_id, msg) => {
+                tracing::info!("UpdatePendingTrade {:?} {:?}", trade_id, msg);
+                server_emitter.emit(ServerEvent::ProcessTradeAction(entity, trade_id, msg));
+            },
             _ => unreachable!("not a client_in_game msg"),
         }
         Ok(())

voxygen/src/hud/mod.rs

@@ -395,6 +395,7 @@ pub enum Event {
         bypass_dialog: bool,
     },
     DropSlot(comp::slot::Slot),
+    DeclineTrade,
     ChangeHotbarState(Box<HotbarState>),
     Ability3(bool),
     Logout,
@@ -874,6 +875,11 @@ impl Hud {
             let inventories = ecs.read_storage::<comp::Inventory>();
             let entities = ecs.entities();
             let me = client.entity();
+
+            if (client.pending_trade().is_some() && !self.show.trade) || (client.pending_trade().is_none() && self.show.trade) {
+                self.show.toggle_trade();
+            }
+
             //self.input = client.read_storage::<comp::ControllerInputs>();
             if let Some(health) = healths.get(me) {
                 // Hurt Frame
@@ -2125,6 +2131,7 @@ impl Hud {
                 Some(trade::Event::Close) => {
                     self.show.stats = false;
                     self.show.trade(false);
+                    events.push(Event::DeclineTrade);
                     if !self.show.social {
                         self.show.want_grab = true;
                         self.force_ungrab = false;

voxygen/src/hud/trade.rs

@@ -149,6 +149,17 @@ impl<'a> Widget for Trade<'a> {
             .font_size(self.fonts.cyri.scale(20))
             .color(TEXT_COLOR)
             .set(state.ids.trade_title, ui);
+        // Close button
+        if Button::image(self.imgs.close_btn)
+            .w_h(24.0, 25.0)
+            .hover_image(self.imgs.close_btn_hover)
+            .press_image(self.imgs.close_btn_press)
+            .top_right_with_margins_on(state.ids.bg, 0.0, 0.0)
+            .set(state.ids.trade_close, ui)
+            .was_clicked()
+        {
+            event = Some(Event::Close);
+        }
 
         event
     }

voxygen/src/session.rs

@@ -1117,6 +1117,10 @@ impl PlayState for SessionState {
                             client.disable_lantern();
                         }
                     },
+                    HudEvent::DeclineTrade => {
+                        let mut client = self.client.borrow_mut();
+                        client.decline_trade();
+                    },
                     HudEvent::ChangeHotbarState(state) => {
                         let client = self.client.borrow();