How to be create some world in one game and display them on different event? Like that Map_World - its main world and depending (children world): like town and battlefield. For example, if i want to display world town, when acter hero touch acter town on Map_World. (found_town method of acter hero) Then execute some action like buy an items. And then return hero with changed properties to the same Map_World from he was came. 1 How it realease transfer actor between different world? 2 And where (in code) create new (child-)world object and how it to display instead of Map_World? May be exist some demo or example on this subject?