building queue

game/shared/src/building.rs

@@ -0,0 +1,4 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Default, PartialEq, Eq, Serialize, Deserialize)]
+pub struct BuildingIdentifier(u32);

game/shared/src/lib.rs

@@ -1,3 +1,4 @@
+pub mod building;
 pub mod despawn;
 pub mod resource;
 pub mod states;