i think Factorio Team can add eliptic collision and selection, cuz this checking not harder then box(also can be optimized circle thing if want).

but for building placement i think better stay up with cell placement.

Can i limit fuel type for burner? No. I don't think so. Currently it is simple system, if item has fuel value then it is recognized as fuel. There is no segregation for differend fuel types. sadly, but i will do that throught recipe(will be special assembler, not furnace as i thought first). may be...

not input flow.
but disable working if wrong type of fuel in it.

for example limit stone furnace to use only wood.

The biggest advantage of 3d models would be the freedom of movement of different machines, more space for lots of different enemies types. No limitation in rotation precision etc etc. The disadvantage is, that it will be hardly faster to render 3d model, even simplified than just draw one 2d sprite...

Can i limit fuel type for burner?

but may be situation changed in 0.9?

Is it possible to make locomitive with electric power source? i simply copy power source from accumulator(and try to play with fields, like capacity(remove field also)) i trying to make this on 0.8.8, but nope: 1)game crashed if i try to open inventary of train(button still in place) 2)train do not ...

Every computer with 370 MB of video memory (i.e. every computer that is not really old) should easily be able to handle the original 3D models, which would also take up much less space on disk and load faster. PC is able, but render 3D models is harder task for PC, so lower FPS will be here. Allows...