From c4a65579a98b5d989de64433234074946b770a59 Mon Sep 17 00:00:00 2001
From: Atlantiscze <git@stepanekjakub.cz>
Date: Fri, 24 Apr 2020 09:47:32 +0200
Subject: [PATCH] Fixes Intellicore grabbing AI multiple times - If you click
 multiple times during the do_after timer, you may try to grab the AI multiple
 times, possibly breaking stuff. - Should fix #5179

---
 code/game/objects/items/devices/aicard.dm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/code/game/objects/items/devices/aicard.dm b/code/game/objects/items/devices/aicard.dm
index 05260e3d2f..f20e340f34 100644
--- a/code/game/objects/items/devices/aicard.dm
+++ b/code/game/objects/items/devices/aicard.dm
@@ -115,6 +115,9 @@
 	show_message(span("critical", "\The [user] is transferring you into \the [src]!"))
 
 	if(do_after(user, 100))
+		if(carded_ai)
+			to_chat(user, "<span class='danger'>Transfer failed:</span> Existing AI found on remote device. Remove existing AI to install a new one.")
+			return 0
 		if(istype(ai.loc, /turf/))
 			new /obj/structure/AIcore/deactivated(get_turf(ai))