A carrot or warped fungus on a stick swings only when the server boosts

FoodOnAStickItem.use passes on a client, and the server answers SUCCESS_SERVER (which swings the
hand) only when the mount can be boosted. The client counted both sticks as items whose use ends
the click, so every right click swung the hand, boost cooling down or not.

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>

crates/horizon-client/src/game/remote.rs

@@ -9567,7 +9567,9 @@ fn use_ends_click(info: &horizon_client::items::ItemInfo, fall_flying: bool) ->
 /// Whether `Item.use` usually acts on this item (eats, drinks, equips, raises,
 /// throws, shoots, fills or places), which ends `Minecraft.startUseItem` at
 /// its hand. Tools and materials pass, and the off hand gets its turn. The
-/// server decides; this is the client's guess of whether to go on.
+/// server decides; this is the client's guess of whether to go on. A carrot or warped fungus
+/// on a stick is not here: `FoodOnAStickItem.use` passes on a client, and only the server's
+/// answer to a boost that can run swings the hand.
 fn item_has_use(info: &horizon_client::items::ItemInfo) -> bool {
     let id = info.id.trim_start_matches("minecraft:");
     id.ends_with("_spear")
@@ -9603,8 +9605,6 @@ fn item_has_use(info: &horizon_client::items::ItemInfo) -> bool {
                 | "goat_horn"
                 | "bundle"
                 | "brush"
-                | "carrot_on_a_stick"
-                | "warped_fungus_on_a_stick"
         )
 }
 
@@ -10518,6 +10518,14 @@ mod tests {
         for gliding in [false, true] {
             assert!(super::use_ends_click(shield, gliding));
             assert!(!super::use_ends_click(stick, gliding));
+            // FoodOnAStickItem.use passes on a client: no swing while the boost cools down.
+            for rod in [
+                "minecraft:carrot_on_a_stick",
+                "minecraft:warped_fungus_on_a_stick",
+            ] {
+                let rod = items.get(rod).unwrap();
+                assert!(!super::use_ends_click(rod, gliding), "{}", rod.id);
+            }
         }
     }
 }