A lamp keying morse, the marks on a tape, letters decoded.
A signal lamp keys out a message. The marks run off along a tape from the head, and each letter is written beneath its group once it is complete. Give it your own message.
Options
Give them to Ascii.new/2 as options:, and new ones while it plays
with Ascii.put_options/2 (or a Phoenix player's options): the lamp
starts afresh on the new message.
text- the message, in either case: letters, digits and. , ? ! ' / - &are keyed, 0.12 seconds a dot, and written beneath their groups in upper case; anything else, space included, is a word gap. After the message a long rest, then it starts again. Default"hello world".
The picture is always 64 by 19.
Colours
It has no parts to colour one by one: in one ink, or a gradient, with
:ink and :gradient (see Ascii.Ink). A vertical gradient tints
the lamp, the tape and the letters each their own.
Keys and clicks
It takes none: it keys its message, and Ascii.handle_event/2
ignores every event. A Phoenix player given interactive and notify
still tells your LiveView where it was clicked.
Screen readers
Ascii.describe/1 reads the message: "morse: sos". Without one, it
gives the piece's name and note.
Example
lamp = Ascii.new!("morse", options: %{text: "sos"}, ink: ["#ffd166", "#ef476f"], gradient: :vertical)
{frame, lamp} = Ascii.frame(lamp, 3.0)
frame.text =~ "S"
#=> true
Ascii.describe(lamp)
#=> "morse: sos"<Ascii.Phoenix.live_player id="signal" piece="morse" options={%{text: @message}} ink="#ffd166" />Ported from src/pieces/morse.ts in bas3line/ascii (MIT).