Factorio Forums

Assuming indexes in lua start from 1.

getbar() → uint
Get the current bar. This is the index at which the red area starts.

When I called setbar(1) it set 1 slot free and others locked. Which means that when I call getbar() it will return 1 but red area will actually start from index 2. So getbar() returns the index before the red area starts.

Thanks for the report. The description is correct just it was using zero-based indexing instead of lua 1-based.

To set 1 slot free you would use setbar(2) so the bar starts at the begining of slot #2. to set no slots free you would start the bar at slot 1.

I've fixed it for the next version of 0.16. so it uses 1-based indexing.