1 files changed, 73 insertions, 0 deletions
diff --git a/client/lib/scales.js b/client/lib/scales.js
new file mode 100644
index 0000000..87dcb0e
--- /dev/null
+++ b/client/lib/scales.js
@@ -0,0 +1,73 @@
+/**
+ * Scales
+ * @module client/lib/scales.js;
+ */
+
+import "core-js/stable";
+import "regenerator-runtime/runtime";
+
+import {
+  Arithmetic,
+  Collatz,
+  Fibonacci,
+  Geometric,
+  Power,
+  Prime,
+  Triangle,
+} from "../vendor/number-sequences/dist/index.js";
+
+let a, b;
+
+export const scales = [
+  { name: "integer", get: (i, j) => [i + 1, j + 1] },
+  { name: "subharmonic", get: (i, j) => [i + 1, i + j + 2] },
+  { name: "harmonic", get: (i, j) => [i + j + 2, j + 1] },
+  {
+    name: "prime",
+    reset: (x, y, w, h) => {
+      a = Prime().skip(x).take(w).toJS();
+      b = Prime().skip(y).take(h).toJS();
+    },
+    get: (ii, jj, i, j) => [a[i], b[j]],
+  },
+  {
+    name: "arithmetic",
+    reset: (x, y, w, h) => {
+      a = Arithmetic(x + 1, x + 1)
+        .take(w)
+        .toJS();
+      b = Arithmetic(y + 1, y + 1)
+        .take(h)
+        .toJS();
+      console.log(a);
+    },
+    get: (ii, jj, i, j) => [a[i], b[j]],
+  },
+  // {
+  //   name: "triangle",
+  //   reset: (x, y, w, h) => {
+  //     a = Triangle().skip(x).take(w).toJS();
+  //     b = Triangle().skip(y).take(h).toJS();
+  //   },
+  //   get: (ii, jj, i, j) => [a[i], b[j]],
+  // },
+  {
+    name: "collatz",
+    reset: (x, y, w, h) => {
+      a = Collatz(x + 1)
+        .take(w)
+        .toJS();
+      b = Collatz(y + 1)
+        .take(h)
+        .toJS();
+    },
+    get: (ii, jj, i, j) => [a[i], b[j]],
+  },
+  {
+    name: "pythagorean",
+    get: (i, j) =>
+      i < j
+        ? [3 ** (i + 1), 2 ** (j + Math.ceil(Math.max(0, (i * 1.0) / 2)))]
+        : [2 ** (i + Math.ceil(Math.max(0, (j * 1.2) / 2))), 3 ** j],
+  },
+];