Fix ammo check for revolvers (#3025)

Loading rockets and rifle ammo into the revolver is prohibited

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:cl:

fix: Fix revolver ammo check

/:cl:

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---------

Co-authored-by: Sun-Soaked <[email protected]>

code/modules/projectiles/guns/ballistic/revolver.dm

@@ -142,6 +142,12 @@
 /obj/item/gun/ballistic/revolver/proc/insert_casing(mob/living/user, obj/item/ammo_casing/casing_to_insert, allow_ejection)
 	if(!casing_to_insert)
 		return FALSE
+
+// Check if the bullet's caliber matches the magazine's caliber.If not, send a warning message to the user and return FALSE.
+	if(casing_to_insert.caliber != magazine.caliber)
+		to_chat(user, "<span class='warning'>\The [casing_to_insert] is not suitable for [src].</span>")
+		return FALSE
+
 	var/list/rounds = magazine.ammo_list()
 	var/obj/item/ammo_casing/slot = rounds[gate_offset+1] //byond arrays start at 1, so we add 1 to get the correct index
 	var/doafter_time = 0.4 SECONDS