drawLine test

packages/core/drawLine.mjs

@@ -1,12 +1,15 @@
 import { gcd } from './fraction.mjs';
 
-function drawLine(pat) {
+// TODO: make it work for stacked patterns + support silence
+
+function drawLine(pat, chars = 60) {
   let s = '';
   let c = 0;
-  while (s.length < 60) {
+  while (s.length < chars) {
     const haps = pat.queryArc(c, c + 1);
     const durations = haps.map((hap) => hap.duration);
     const totalSlots = gcd(...durations).inverse();
+    s += '|';
     haps.forEach((hap) => {
       const duration = hap.whole.end.sub(hap.whole.begin);
       const slots = totalSlots.mul(duration);
@@ -15,7 +18,6 @@ function drawLine(pat) {
         .map((_, i) => (!i ? hap.value : '-'))
         .join('');
     });
-    s += '|';
     ++c;
   }
   return s;