add stut + stutWith + iter

strudel.mjs

@@ -9,6 +9,8 @@ const flatten = arr => [].concat(...arr)
 
 const id = a => a
 
+const range = (min, max) => Array.from({ length: max - min + 1 }, (_, i) => i + min);
+
 export function curry(func, overload) {
     const fn = function curried(...args) {
         if (args.length >= func.length) {
@@ -713,6 +715,18 @@ class Pattern {
       return this.stack(...funcs.map((func) => func(this)));
     }
 
+    stutWith(times, time, func) {
+      return stack(...range(0, times - 1).map((i) => func(this.late(i * time), i)));
+    }
+
+    stut(times, feedback, time) {
+      return this.stutWith(times, time, (pat, i) => pat.velocity(Math.pow(feedback, i)));
+    }
+
+    iter(times) {
+      return slowcat(...range(0, times - 1).map((i) => this.early(i/times)));
+    }
+
     edit(...funcs) {
       return stack(...funcs.map(func => func(this)));
     }
@@ -1023,6 +1037,6 @@ export {Fraction, TimeSpan, Hap, Pattern,
     pure, stack, slowcat, fastcat, cat, timeCat, sequence, polymeter, pm, polyrhythm, pr, reify, silence,
     fast, slow, early, late, rev,
     add, sub, mul, div, union, every, when, off, jux, append, superimpose, 
-    struct, mask, invert, inv,
+    struct, mask, invert, inv, id, range
 }