Rainbowsparkle fix #23
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…o move the cycle done callback out to animate()
adafruit-adabot
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May 26, 2020
Updating https://github.com/adafruit/Adafruit_CircuitPython_LED_Animation to 2.1.0 from 2.0.1: > Merge pull request adafruit/Adafruit_CircuitPython_LED_Animation#26 from kattni/more-example-updates > Merge pull request adafruit/Adafruit_CircuitPython_LED_Animation#25 from kattni/example-updates > Merge pull request adafruit/Adafruit_CircuitPython_LED_Animation#23 from rhooper/rainbowsparkle-fix
Neradoc
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Jul 18, 2022
The Sparkle animation uses `after_draw` to setup the pixels currently being sparkled for the next frame, assuming `show()` will not be called until then. It also calls `show()` itself first to show the changes made in `draw()`. The problem is that `animate()` already calls `show()` after calling draw and after_draw. So the frame where the sparkle should show is actually skipped and only briefly appears instead of staying for a frame according to the speed parameter. The refactor from PR adafruit#23 changed the protocol where animations should no longer call `show()` themselves. We can't change `after_draw` to be called after the call to show() in animate(), because it will break on animation groups using the same strip. If another animation triggers a show() sooner, it will show the next frame of the sparkle prematurely. It also makes the protocol less predictable. I have used `animate(False)`, followed by setting a pixel an calling `show()` for example to force the color of a single or a few pixels without going through the hassle of creating pixelmaps or groups (and also to simply make it look like it's superimposed over the animation). So the solution would be to drop `after_draw` and instead memorize the previous list of pixels and set them back in the next draw.
Neradoc
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Jul 18, 2022
The Sparkle animation uses `after_draw` to setup the pixels currently being sparkled for the next frame, assuming `show()` will not be called until then. It also calls `show()` itself first to show the changes made in `draw()`. The problem is that `animate()` already calls `show()` after calling draw and after_draw. So the frame where the sparkle should show is actually skipped and only briefly appears instead of staying for a frame according to the speed parameter. The refactor from PR adafruit#23 changed the protocol where animations should no longer call `show()` themselves. We can't change `after_draw` to be called after the call to show() in animate(), because it will break on animation groups using the same strip. If another animation triggers a show() sooner, it will show the next frame of the sparkle prematurely. It also makes the protocol less predictable. I have used `animate(False)`, followed by setting a pixel an calling `show()` for example to force the color of a single or a few pixels without going through the hassle of creating pixelmaps or groups (and also to simply make it look like it's superimposed over the animation). So the solution would be to drop `after_draw` and instead memorize the previous list of pixels and set them back in the next draw.
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Refactors the cycle done protocol, refactors SparklePulse to re-use Sparkle and the pulse generator. Fixes dotstar compatibility in a number of spots. Fix RainbowSparkle leaving dots behind. Adds after_draw() to the protocol. Moves primary show() calls to .animate(). Adds Dotstar PWM support to pulse.