Adds a semi-big whistle cooldown. (#5469)

Adds a 10 second cooldown to the whistles to make them less spammy
# About the pull request

This PR gives the whistles a 10 second cooldown to have people spam them
less. It also sends a message telling the player how long they need to
wait before they can use it again.

# Explain why it's good for the game

Right now what often ends up happening is people deleting all of the
whistles because they are VERY loud and VERY spammy. This should make
that less of an issue.


# Testing Photographs and Procedure
<details>
It works :D


![image](https://github.com/cmss13-devs/cmss13/assets/115504494/58487e7c-3584-4ff1-ad63-c8fc918fa5a0)

</details>


# Changelog

:cl:
qol: made whistles less spammy
/:cl:

---------

Co-authored-by: Zonespace <[email protected]>

code/game/objects/items/devices/whistle.dm

@@ -8,7 +8,8 @@
 	actions_types = list(/datum/action/item_action)
 
 	var/volume = 60
-	var/spamcheck = 0
+	var/spam_cooldown_time = 10 SECONDS
+	COOLDOWN_DECLARE(spam_cooldown)
 
 /obj/item/device/whistle/attack_self(mob/user)
 	..()
@@ -28,14 +29,14 @@
 		..()
 
 /obj/item/device/whistle/proc/whistle_playsound(mob/user)
-	if (spamcheck)
+	if(!COOLDOWN_FINISHED(src, spam_cooldown))
+		to_chat(user, SPAN_DANGER("You are out of breath after using [src]! Wait [COOLDOWN_SECONDSLEFT(src, spam_cooldown)] second\s."))
 		return
 
 	user.visible_message(SPAN_WARNING("[user] blows into [src]!"))
 	playsound(get_turf(src), 'sound/items/whistle.ogg', volume, 1, vary = 0)
 
-	spamcheck = 1
-	addtimer(VARSET_CALLBACK(src, spamcheck, FALSE), 3 SECONDS)
+	COOLDOWN_START(src, spam_cooldown, spam_cooldown_time)
 
 /obj/item/device/whistle/MouseDrop(obj/over_object)
 	if(ishuman(usr))