first steps towards making containers openable

pumpkin-inventory/src/lib.rs

@@ -3,7 +3,7 @@ use num_derive::ToPrimitive;
 pub mod player;
 
 /// https://wiki.vg/Inventory
-#[derive(Debug, ToPrimitive)]
+#[derive(Debug, ToPrimitive, Clone)]
 pub enum WindowType {
     // not used
     Generic9x1,
@@ -41,3 +41,11 @@ pub enum WindowType {
     CartographyTable,
     Stonecutter,
 }
+
+impl WindowType {
+    pub const fn default_title(&self) -> &'static str {
+        match self {
+            _ => "WINDOW TITLE"
+        }
+    }
+}

pumpkin-inventory/src/player.rs

@@ -95,4 +95,13 @@ impl PlayerInventory {
         debug_assert!((0..9).contains(&self.selected));
         self.items[self.selected + 36 - 9].as_ref()
     }
+
+    pub fn slots(&self) -> Vec<Option<&Item>> {
+        let mut slots = vec![self.crafting_output.as_ref()];
+        slots.extend(self.crafting.iter().map(|c|c.as_ref()));
+        slots.extend(self.armor.iter().map(|c|c.as_ref()));
+        slots.extend(self.items.iter().map(|c|c.as_ref()));
+        slots.push(self.offhand.as_ref());
+        slots
+    }
 }

pumpkin-protocol/src/client/play/c_set_container_content.rs

@@ -0,0 +1,27 @@
+use pumpkin_macros::packet;
+use serde::Serialize;
+use crate::slot::Slot;
+use crate::VarInt;
+
+#[derive(Serialize)]
+#[packet(0x13)]
+pub struct CSetContainerContent<'a> {
+    window_id: u8,
+    state_id: VarInt,
+    count: VarInt,
+    slot_data: &'a [Slot],
+    carried_item: Slot
+}
+
+
+impl<'a> CSetContainerContent<'a> {
+    pub fn new(window_id: u8,state_id: VarInt, slots: &'a [Slot], carried_item: Slot) -> Self {
+        Self {
+            window_id,
+            state_id,
+            count: slots.len().try_into().unwrap(),
+            slot_data: slots,
+            carried_item
+        }
+    }
+}

pumpkin-protocol/src/client/play/mod.rs

@@ -33,6 +33,7 @@ mod c_update_entity_pos;
 mod c_update_entity_rot;
 mod c_worldevent;
 mod player_action;
+mod c_set_container_content;
 
 pub use c_acknowledge_block::*;
 pub use c_actionbar::*;
@@ -69,3 +70,4 @@ pub use c_update_entity_pos::*;
 pub use c_update_entity_rot::*;
 pub use c_worldevent::*;
 pub use player_action::*;
+pub use c_set_container_content::*;

pumpkin-protocol/src/slot.rs

@@ -3,9 +3,10 @@ use pumpkin_world::item::Item;
 use serde::{
     de::{self, SeqAccess, Visitor},
     Deserialize,
+    Serialize
 };
 
-#[derive(Debug, Clone)]
+#[derive(Debug, Clone, Serialize)]
 #[allow(dead_code)]
 pub struct Slot {
     item_count: VarInt,
@@ -83,12 +84,29 @@ impl Slot {
             item_count: self.item_count.0.try_into().unwrap(),
         })
     }
-}
-impl From<Slot> for Item {
-    fn from(slot: Slot) -> Self {
-        Item {
-            item_count: slot.item_count.0.try_into().unwrap(),
-            item_id: slot.item_id.unwrap().0.try_into().unwrap(),
+
+    pub const fn empty() -> Self {
+        Slot {
+            item_count: VarInt(0),
+            item_id: None,
+            num_components_to_add: None,
+            num_components_to_remove: None,
+            components_to_add: None,
+            components_to_remove: None,
         }
     }
 }
+
+impl From<&Item> for Slot {
+    fn from(item: &Item) -> Self {
+        Slot {
+            item_count: item.item_count.into(),
+            item_id: Some(item.item_id.into()),
+            // TODO: add these
+            num_components_to_add: None,
+            num_components_to_remove: None,
+            components_to_add: None,
+            components_to_remove: None,
+        }
+    }
+}

pumpkin/src/client/mod.rs

@@ -18,7 +18,7 @@ use pumpkin_protocol::{
     client::{
         config::CConfigDisconnect,
         login::CLoginDisconnect,
-        play::{CGameEvent, CPlayDisconnect, CSyncPlayerPostion, CSystemChatMessge},
+        play::{CGameEvent, CPlayDisconnect, CSyncPlayerPostion, CSystemChatMessge, CSetContainerContent},
     },
     packet_decoder::PacketDecoder,
     packet_encoder::PacketEncoder,
@@ -40,6 +40,10 @@ use pumpkin_text::TextComponent;
 
 use std::io::Read;
 use thiserror::Error;
+use pumpkin_inventory::WindowType;
+use pumpkin_protocol::client::play::COpenScreen;
+use pumpkin_protocol::slot::Slot;
+use pumpkin_world::item::Item;
 
 pub mod authentication;
 mod client_packet;
@@ -174,6 +178,46 @@ impl Client {
         player.gamemode = gamemode;
         self.send_packet(&CGameEvent::new(3, gamemode.to_f32().unwrap()));
     }
+    
+    pub fn open_container(&mut self, window_type: WindowType, minecraft_menu_id: &str,window_title: Option<&str>) {
+        let menu_protocol_id = (*pumpkin_world::global_registry::REGISTRY.get("minecraft:menu").unwrap().entries.get(minecraft_menu_id).expect("Should be a valid menu id").get("protocol_id").unwrap()).into();
+        let title = TextComponent::text(window_title.unwrap_or(window_type.default_title()));
+        self.send_packet(&COpenScreen::new((window_type.clone() as u8 +1).into(),menu_protocol_id, title));
+        let temp_item = Item {
+            item_id: 91, // Diamond block
+            item_count: 64
+        };
+        self.set_container_content(window_type, Some([Some(&temp_item);27].to_vec()), None);
+    }
+    
+    pub fn set_container_content<'a>(&mut self, window_type: WindowType, items: Option<Vec<Option<&'a Item>>>, carried_item: Option<&'a Item>) {
+        let player = self.player.as_ref().unwrap();
+        
+        let slots: Vec<Slot> = {if let Some(mut items) = items {
+            items.extend(player.inventory.slots()
+               );
+            items
+        } else {
+            player.inventory.slots()
+        }.into_iter()
+            .map(|item|{
+                if let Some(item) = item {
+                    Slot::from(item)
+                } else {
+                    Slot::empty()
+                }
+            }).collect()};
+
+        let carried_item = {
+            if let Some(item) = carried_item {
+                item.into()
+            } else {
+                Slot::empty()
+            }
+        };
+        
+        self.send_packet(&CSetContainerContent::new(window_type as u8, 10.into(), &slots, carried_item))
+    }
 
     pub async fn process_packets(&mut self, server: &mut Server) {
         let mut i = 0;
@@ -359,7 +403,7 @@ impl Client {
             }
         }
     }
-
+    
     pub fn send_system_message(&mut self, text: TextComponent) {
         self.send_packet(&CSystemChatMessge::new(text, false));
     }