I'm currently trying to figure out how to be able to selectively diffuse towards/away from a light of a given color suspended in the air above the arena with the footbot robot. As far as I can tell, the footbot light sensor is color agnostic, so that won't work without modification to the readings returned by the light sensor (I think), which I don't think is a good idea. The colored blob omnidirectional sensor IS able to distinguish between lights of different types, but has a very short range compared to the light sensor, so I can't really do attraction/repulsion from a light source of a given color from across the arena (like I can in the foraging example).
Is there a way to increase the range of the colored blob camera/am I missing something on how to do this with default-ish configuration? If not, what would you suggest for getting this to work? I'm hesitant to modify the light sensor (which has the range I need for phototaxis) to support color discrimination, when I don't think the physical footbot robot's light sensor can do that.
UPDATE: So I found additional omnidirectional colored blob camera config that will let me do what I want (I think): changing the aperture size to almost 90 degrees, giving me a reasonable range. Is using this sensor much more computationally expensive that the light sensor for doing phototaxis as I'm intending?