daily: 2021-09-29 Night

2021-09-29 22:32:20 +08:00
parent 488a2532b2
commit 615ba6ffba
21 changed files with 709 additions and 168 deletions
@@ -0,0 +1,50 @@
+const notations = {
+  zero: "0",
+  do: "1",
+  re: "2",
+  mi: "3",
+  fa: "4",
+  sol: "5",
+  la: "6",
+  si: "7",
+  extend: "─",
+  separator: "│",
+};
+const notes = [
+  notations.zero,
+  notations.do,
+  notations.re,
+  notations.mi,
+  notations.fa,
+  notations.sol,
+  notations.la,
+  notations.si,
+];
+const separators = ["│", "‖"];
+
+function isNote(notationOrNote) {
+  return notes.includes(notationOrNote?.note || notationOrNote);
+}
+function isSeparator(notationOrNote) {
+  return separators.includes(notationOrNote?.note || notationOrNote);
+}
+// 创建符号
+function createNotation(initial) {
+  const n = {
+    key: `n_${String(Math.random())}`,
+    note: "0",
+    octave: 0,
+    dotted: false,
+    underline: 0,
+    breakUnderline: false,
+    prefixSups: [],
+    topDecorators: [],
+    tieTo: null,
+  };
+  if (initial) {
+    Object.assign(n, initial);
+  }
+  return n;
+}
+
+export { notations, isNote, isSeparator, createNotation };