From 60ed10c0a114c35aad70cb84ffc6d0c3b14f8769 Mon Sep 17 00:00:00 2001
From: MihailRis <mexaruc@gmail.com>
Date: Sat, 8 Nov 2025 11:42:10 +0300
Subject: [PATCH] add prefix check to events.on

---
 res/modules/internal/events.lua | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/res/modules/internal/events.lua b/res/modules/internal/events.lua
index 7635af25..a0cd8276 100644
--- a/res/modules/internal/events.lua
+++ b/res/modules/internal/events.lua
@@ -2,7 +2,14 @@ local events = {
     handlers = {}
 }
 
+local __parse_path = parse_path
+local __pack_is_installed = pack.is_installed
+
 function events.on(event, func)
+    local prefix = __parse_path(event)
+    if prefix ~= "core" and not __pack_is_installed(prefix) then
+        error("pack prefix required")
+    end
     if events.handlers[event] == nil then
         events.handlers[event] = {}
     end