From 9d1c30cf9ef5a057c760da49b52312de4a5afc6a Mon Sep 17 00:00:00 2001
From: metamuffin <metamuffin@disroot.org>
Date: Wed, 18 Sep 2024 16:16:58 +0200
Subject: prevent multiple tutorials at once

---
 server/src/commands.rs | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

(limited to 'server/src/commands.rs')

diff --git a/server/src/commands.rs b/server/src/commands.rs
index 8e6f32c7..f5792a22 100644
--- a/server/src/commands.rs
+++ b/server/src/commands.rs
@@ -239,7 +239,18 @@ impl Server {
                     .data
                     .get_item_by_name(&item)
                     .ok_or(anyhow!("unknown item"))?;
-                // TODO  prevent too many (> 1) tutorials for this player
+                #[cfg(not(test))] // TODO rust-analyser does not undestand trait upcasting
+                if self
+                    .entities
+                    .iter()
+                    .find(|e| {
+                        <dyn std::any::Any>::downcast_ref::<Tutorial>(e.as_ref())
+                            .map_or(false, |t| t.player == player)
+                    })
+                    .is_some()
+                {
+                    bail!("Tutorial already running")
+                }
                 self.entities.push(Box::new(Tutorial::new(player, item)));
             }
             Command::TranslateMessage {
-- 
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