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-rw-r--r--builtin/game/auth.lua16
1 files changed, 16 insertions, 0 deletions
diff --git a/builtin/game/auth.lua b/builtin/game/auth.lua
index deb811b14..46fe3d342 100644
--- a/builtin/game/auth.lua
+++ b/builtin/game/auth.lua
@@ -199,3 +199,19 @@ core.register_on_joinplayer(function(player)
record_login(player:get_player_name())
end)
+core.register_on_prejoinplayer(function(name, ip)
+ local auth = core.auth_table
+ if auth[name] ~= nil then
+ return
+ end
+
+ local name_lower = name:lower()
+ for k in pairs(auth) do
+ if k:lower() == name_lower then
+ return string.format("\nCannot create new player called '%s'. "..
+ "Another account called '%s' is already registered. "..
+ "Please check the spelling if it's your account "..
+ "or use a different nickname.", name, k)
+ end
+ end
+end)