Levels - optimize background rendering

[Germanunkol]

Two things should be done, which aren't working yet:

• When in game-mode, the background tiles should all be added to a large batch. Currently, they bahave like they do in the editor - they use their own batches. This is simply because it makes adding, moving and deleting of objects much easier.
• When in game-mode, each background tile that's added should delete lower lying background objects - in case it covers them. For this, each background tile will need a flag "coversFullArea" or similar which we need to manually assign - only background objects with this flag set will remove lower tiles.

At the moment, these aren't important yet - for small levels there's no noticable speed drop (at least not for me). So this is important, but can be finished later. Agreed? Or is the game already slow on your end?

[michalove]

I have no performance issues yet. The first of the two points is much more important, I would say. Maybe it is enough to add a flag-argument to the level-load function and then generate one single sprite batch, if in game-mode? Hey, flag-arguments.

[Germanunkol]

I'd just let the level load function poll the (global) mode the game is currently running in. That way we don't need an extra flag, the level load function should have access to that mode. So yes, this should be fairly straight forward...

[Germanunkol]

Huh, I just noticed that point one is already implemented. I must be growing old...

[michalove]

Yeah, the age...