Some progress :


-Array management is done
-Camera switch system (press numbers to choose a camera : near, medium ,far)

Remaining steps :


2) save and load array of 3D tiles
3) define using directories ? zip files ? some category system for 3D tiles ??
forest world 3D tiles, snow world 3D tiles etc ...
I think in sub folders containing each 3D tiles category ??
-> 3Dtiles folder
-> Forest folder
-> snow folder
-> etc ...
4) read 3D tiles category in a , and use them in the world editor
5) Button run/stop : test map with a character