get_touch_sensors should only return two values for Create 3

[shamlian]

get_touch_sensors is defined in the Robot class to return four sensors, which doesn't make sense for Create 3. Someone should fix that.

See original post by @shamlian in #35 (comment)

[scottcandy34]

NOTE: you can shorten the touch handler any operation. The not event.condition can pulled out as such...

not event.condition and (self.touch_sensors.front_left or self.touch_sensors.front_right or self.touch_sensors.back_left or self.touch_sensors.back_right)

This will fail off the start for event.condition, not having extra checks will increase speed.

[shamlian]

Good point. Would you agree that the two other checks on the value of any in the elif statements just below are redundant? I think if we make it to those elifs, any is guaranteed to be False.

[scottcandy34]

yes I was just looking at that too. agreed

[shamlian]

All right, I'll be pushing a fix to the branch for this soon.