HookGamerules
Hook gamerules object.
Game rules hooks are auto-removed on map end.
If you need to read the return value of the function, choose a post hook.
Parameters
The desired hook mode - pre or post.
A pre hook calls your callback BEFORE the original function is called.
You can access the parameters, set the return value, and skip the original function.
A post hook calls your callback AFTER the original function executed.
You can access the parameters and get/set the return value.
Optional callback for when the hook is removed.
Return Value
int A hookid on success, INVALID_HOOK_ID otherwise.Error
Invalid setup handle, invalid address, invalid hook type or invalid callback.