first commit

[jedgarpark]

ON AIR sign for YouTube livestream using Airlift Metro M4, matrix shield, 64x32 matrix.
Note: This code requires the adafruit_matrixportal library.

[ladyada]

@makermelissa plz review - do we have a way of having a bitmap background? that might be easier than the wings-drawing functions?

[jedgarpark]

@ladyada I was trying to show how we can do the graphics in code without needing people to create a bitmap (protest sign project was all about bitmaps) so that was my thinking behind using the lines and rectangle shapes.

[makermelissa]

Looks good for the most part. Some of the drawing code can be reduced. I was going to suggest using a polygon, but when I tested it out, there appears to be an off by one type issue, so I'm not suggesting it at this time.

[makermelissa]

This could probably be reduced significantly with:

# draw the wings w line shapes
wing_lines = []

wing_lines.append(Line(3, 3, 10, 3, color[1]))  # x-start, y-start, x-end, y-end, color
wing_lines.append(Line(4, 4, 10, 4, color[1]))
wing_lines.append(Line(5, 6, 10, 6, color[1]))
wing_lines.append(Line(6, 7, 10, 7, color[1]))
wing_lines.append(Line(7, 9, 10, 9, color[1]))
wing_lines.append(Line(8, 10, 10, 10, color[1]))
wing_lines.append(Line(54, 3, 61, 3, color[1]))
wing_lines.append(Line(54, 4, 60, 4, color[1]))
wing_lines.append(Line(54, 6, 59, 6, color[1]))
wing_lines.append(Line(54, 7, 58, 7, color[1]))
wing_lines.append(Line(54, 9, 57, 9, color[1]))
wing_lines.append(Line(54, 10, 56, 10, color[1]))

[jedgarpark]

great, I just incorporated that, thanks!

[makermelissa]

I just pushed a fix for the line/polygon drawing code in display shapes that fixes the off by one issue. It will have to be a major release bump due to it breaking code, but a heads up that the X-offset will need to be adjusted in this code for that as it was missing a pixel at the end of each line.

Once it works, here's some even more optimized code that also fixes the location of the pixels so it looks like it originally did:

wing_lines.append(Polygon([(3,3), (9,3), (9,4), (4,4)], outline=color[1]))
wing_lines.append(Polygon([(5,6), (9,6), (9,7), (6,7)], outline=color[1]))
wing_lines.append(Polygon([(7,9), (9,9), (9,10), (8,10)], outline=color[1]))
wing_lines.append(Polygon([(54,3), (60,3), (59,4), (54,4)], outline=color[1]))
wing_lines.append(Polygon([(54,6), (58,6), (57,7), (54,7)], outline=color[1]))
wing_lines.append(Polygon([(54,9), (56,9), (55,10), (54,10)], outline=color[1]))

[makermelissa]

Just tested. It looks good!