refactor: script globals

app/util/math.js

@@ -1,3 +1,47 @@
+export const {
+  abs,
+  acos,
+  acosh,
+  asin,
+  asinh,
+  atan,
+  atanh,
+  atan2,
+  ceil,
+  cbrt,
+  expm1,
+  clz32,
+  cos,
+  cosh,
+  exp,
+  floor,
+  fround,
+  hypot,
+  imul,
+  log,
+  log1p,
+  log2,
+  log10,
+  max,
+  min,
+  round,
+  sign,
+  sin,
+  sinh,
+  sqrt,
+  tan,
+  tanh,
+  trunc,
+  E,
+  LN10,
+  LN2,
+  LOG10E,
+  LOG2E,
+  PI,
+  SQRT1_2,
+  SQRT2,
+} = Math;
+
 export function clamp(n, min, max) {
   return Math.max(min, Math.min(max, n));
 }
@@ -23,3 +67,7 @@ export function normalizeVector({x, y}) {
   const k = 1 / Math.sqrt(x * x + y * y);
   return {x: x * k, y: y * k};
 }
+
+export function random() {
+  return Math.random();
+}

app/util/script.js

@@ -3,6 +3,10 @@ import {LRUCache} from 'lru-cache';
 
 import Sandbox from '@/astride/sandbox.js';
 import TickingPromise from '@/util/ticking-promise.js';
+import delta from '@/util/delta.js';
+import lfo from '@/util/lfo.js';
+import * as MathUtil from '@/util/math.js';
+import transition from '@/util/transition.js';
 
 function parse(code, options = {}) {
   return acornParse(code, {
@@ -31,10 +35,13 @@ export default class Script {
 
   static contextDefaults() {
     return {
-      console,
       Array,
-      Math,
+      console,
+      delta,
+      lfo,
+      Math: MathUtil,
       Promise,
+      transition,
       wait: (seconds) => (
         new Promise((resolve) => {
           setTimeout(resolve, seconds * 1000);