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Evolving Idea (November 30, 2017)

Idea is to have a control scheme inspired by 80's video games like Snake and Asteroids.

Controlling Movement and Direction:

  • Movement and speed is controlled by the direction keys.
  • Once a direction key is pressed, it will continue to move on its own in that direction.
  • Direction can be changed at any time by pressing any of the other direction keys
  • Changing directions does not change its speed - it continues at the speed it was traveling at.

Controlling Speed:

  • Speed is controlled by dedicated keys like CTRL and ALT to increase and decrease, or 1 - 2 - 3 to change speeds to slow, moderate, and fast.
  • Stop is controlled by space bar (or some other key)

Unlike the v2.0 sketch below, this evolving design idea uses the direction keys to control just the direction - making it simpler to understand and control. Speed is mapped to another set of keys making it easier to just focus on movement once you have a speed you like.

V2.0 (November 17, 2017)

The following is a sketch depicting a possible keyboard interaction for the Faraday's Law simulation (link to Faraday's Law Simulation at PhET). Understanding speed of magnet movement as it relates to flux is an important learning outcome, and this sketch aims to minimize the dexterity / motor function required to successfully gain the learning outcomes. 

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  • The "Wild Ride" phenomenon
  • How many steps in the throttle?
  • Instead of stopping the magnet if a different direction key is pressed, what if the magnet continued moving in the new direction at the same speed?
  • What would it be like to have two modes for keyboard interaction: standard cursor control style of interaction, and this "throttle" control scheme?

Evolving Design Idea

Idea is to have a control scheme inspired by 80's video games like Snake and Asteroids.

Controlling Movement and Direction:

  • Movement and speed is controlled by the direction keys.
  • Once a direction key is pressed, it will continue to move on its own in that direction.
  • Direction can be changed at any time by pressing any of the other direction keys
  • Changing directions does not change its speed - it continues at the speed it was traveling at.

Controlling Speed:

  • Speed is controlled by dedicated keys like CTRL and ALT to increase and decrease, or 1 - 2 - 3 to change speeds to slow, moderate, and fast.
  • Stop is controlled by space bar (or some other key)

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V1.0

Image 1 Above: Initial view

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