Define slider range - Githubissues

KanoComputing / make-art

App to learn programming using a basic CoffeeScript drawing API

GNU General Public License v2.0

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Define slider range #106

Open brandonjackson opened 8 years ago

brandonjackson commented 8 years ago

The sliders are useless in two situations:

When trying to change really small numbers (such as the length of an arc, which ranges from 0 to 2)
When trying to change positions (which span both positive and negative numbers)

I think we need to be able to define the range of the sliders. This could be linked together with changes to the validation system that would allow us to define a range of acceptable values for a parameter.

alecmolloy commented 8 years ago

Ideas:

Slider range and precision is explicitly defined for challenge steps: so play can be validated and occur within mandated parameters.
For either just playground or both: Slider range is calculated as some form of: n + dx^dy. So horizontal mouse movement controls value with vertical movement controls precision, with the original value's precision respected

alecmolloy commented 8 years ago

Also: The slider currently thinks in terms of the 1D number line, but for angle values in radians (Math.PI * .5) or degrees (90 * Math.PI / 180) there might be better interactions. The circular knob isn't as easy to manipulate, but allows for infinite manipulation (https://youtu.be/MS30IRMh1sc?t=55)

A lot of cool things can be done by thinking radially, but as you have pointed out our system really doesn't lend itself very well to this. Would like to discuss this idea AFK next time you're in London.