Framework

[Elmar]

I want to write programm as following:

 

To create the framework. To set the background to this framework. To add, remove, copy the mesh when program is running.

General question: Can I add, remove, copy the mesh when program is running? If yes, how?

[Pixel Perfect]

Yes, have a look at this page in the wiki: Creation and Destruction

 

Don't forget you can also hide the entity using HideEntity if you don't want to total destroy it.

[Elmar]

Must I set entities only with code? Can't I do it with mouse?

I want to pull entity with mouse and set it to my scene.

[Kazar]

You can do that with the Editor. If you want to make it so that players have the same type of entity placement (like in RTS games) you have to code it to your game.