2 files changed, 17 insertions, 3 deletions
diff --git a/server/protocol/src/helpers.rs b/server/protocol/src/helpers.rs
index 924d0886..b85c2f84 100644
--- a/server/protocol/src/helpers.rs
+++ b/server/protocol/src/helpers.rs
@@ -1,7 +1,8 @@
 use std::fmt::Display;
 
 use crate::{
-    DocumentElement, Gamedata, ItemIndex, ItemLocation, PlayerID, Recipe, RecipeIndex, TileIndex,
+    DocumentElement, Gamedata, Hand, ItemIndex, ItemLocation, PlayerID, Recipe, RecipeIndex,
+    TileIndex,
 };
 
 impl Gamedata {
@@ -98,11 +99,17 @@ impl Display for ItemLocation {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
             ItemLocation::Tile(pos) => write!(f, "tile({pos})"),
-            ItemLocation::Player(PlayerID(id)) => write!(f, "player({id})"),
+            ItemLocation::Player(PlayerID(id), hand) => write!(f, "player({id}_{hand})"),
         }
     }
 }
 
+impl Display for Hand {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "h{}", self.0)
+    }
+}
+
 impl Default for DocumentElement {
     fn default() -> Self {
         Self::Document { es: vec![] }
diff --git a/server/protocol/src/lib.rs b/server/protocol/src/lib.rs
index 2ef07015..74d463a1 100644
--- a/server/protocol/src/lib.rs
+++ b/server/protocol/src/lib.rs
@@ -71,6 +71,10 @@ pub struct RecipeIndex(pub usize);
 #[serde(transparent)]
 pub struct DemandIndex(pub usize);
 
+#[derive(Debug, Clone, Copy, Serialize, Deserialize, Encode, Decode, PartialEq, Eq, Hash)]
+#[serde(transparent)]
+pub struct Hand(pub usize);
+
 #[derive(Debug, Clone, Serialize, Deserialize, Encode, Decode)]
 pub struct MapMetadata {
     pub name: String,
@@ -98,6 +102,7 @@ pub struct Gamedata {
     pub bot_algos: Vec<String>,
     pub recipes: Vec<Recipe>,
     pub demands: Vec<Demand>,
+    pub hand_count: usize,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize, Encode, Decode)]
@@ -124,6 +129,7 @@ pub enum PacketS {
     },
     Interact {
         player: PlayerID,
+        hand: Hand,
         #[bincode(with_serde)]
         pos: Option<IVec2>,
     },
@@ -144,6 +150,7 @@ pub enum PacketS {
     /// For internal use only (customers)
     ReplaceHand {
         player: PlayerID,
+        hand: Hand,
         item: Option<ItemIndex>,
     },
     #[serde(skip)]
@@ -344,7 +351,7 @@ pub enum Recipe {
 #[serde(rename_all = "snake_case")]
 pub enum ItemLocation {
     Tile(#[bincode(with_serde)] IVec2),
-    Player(PlayerID),
+    Player(PlayerID, Hand),
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize, Encode, Decode)]