Event flag. Functions with this attribute will listen for collision events only for the instance selected in the arguments (by name and / or tag).
Attribute indicating in which thread you need to make an object step.
Trigger flag. It is hung on a function where triggers with the selected name will be listened to.
Attribute indicating that the flow function function (guarantees the programmer himself) and can be transferred to another stream to accelerate. Do not combine with the @event(step).
A module for describing some local events by means of function attributes.