1 files changed, 44 insertions, 0 deletions
diff --git a/src/wire/update.rs b/src/wire/update.rs
new file mode 100644
index 000000000000..27f2d0ddded3
--- /dev/null
+++ b/src/wire/update.rs
@@ -0,0 +1,44 @@
+//! Update to the game state
+
+use super::UserId;
+use serde::{Deserialize, Serialize};
+
+/// An update provided by the game server
+#[derive(Serialize, Deserialize)]
+pub enum Update {
+    /// Update made to a node
+    Node(NodeUpdate),
+    /// Update made to a link
+    Link(LinkUpdate),
+    /// Update made to a packet
+    Packet(PacketUpdate),
+    /// Update made to the user set
+    User(UserUpdate),
+    /// An error occured, can be non-fatal
+    Error(UpdateError),
+}
+
+/// Update made to a node
+#[derive(Serialize, Deserialize)]
+pub enum NodeUpdate {}
+
+/// Update made to a link
+#[derive(Serialize, Deserialize)]
+pub enum LinkUpdate {}
+
+/// Update made to a packet
+#[derive(Serialize, Deserialize)]
+pub enum PacketUpdate {}
+
+/// Update made to the user set
+#[derive(Serialize, Deserialize)]
+pub enum UserUpdate {
+    UserLeft(UserId),
+}
+
+/// An error occured, can be non-fatal
+#[derive(Serialize, Deserialize)]
+pub enum UpdateError {
+    /// You are the last user in the match
+    LastUser,
+}