how do analog sticks avoid counting “snapping back” as an input?

Question

When you let go of an analog stick it snaps back to the center, how is this not counted as an input? Is this an hardware or a software thing?

In: Technology

Answer 1

If you press the stick all the way forward, you tell it “give me 100% movement forward”. Letting the stick to turns that 100% progressively down to 0% but never -%. If you hold it all the way in one direction and then move it back half way you’re tell it “move this way less”, you’re not telling it “move in the opposite direction”. Just like the other person said, letting go of the gas pedal doesn’t mean you brake or go backwards. It’s just decreasing an input, not sending a contradictory one.