@rickosborne/rebound/scale-bounded.mjs

Rick Osborne's utilities for working with bounded numbers

var __defProp = Object.defineProperty;
var __name = (target, value) => __defProp(target, "name", { value, configurable: true });
import { con, lowerFirst } from "@rickosborne/foundation";
import { effectiveRange } from "./effective-range.mjs";
import { addTypedProperties } from "./typed-function.mjs";
const scaleBounded = /* @__PURE__ */ __name((inputBounds, outputBounds, ifPresent, fnName = `${lowerFirst(outputBounds.typeName)}From${inputBounds.typeName}`) => {
  const inputRange = effectiveRange(inputBounds);
  if (inputRange === 0) {
    throw new RangeError("Input range must be > 0");
  }
  const outputRange = effectiveRange(outputBounds);
  const inputShift = inputBounds.lower + (inputBounds.isLowerInc ? 0 : inputBounds.isInt ? 1 : Number.MIN_VALUE);
  const outputShift = outputBounds.lower + (outputBounds.isLowerInc ? 0 : outputBounds.isInt ? 1 : Number.MIN_VALUE);
  if (outputRange === 0) {
    con.warn("Effective output range is 0.  All outputs will be the same.");
    if (ifPresent) {
      return ((value) => value == null ? void 0 : outputShift);
    } else {
      return (() => outputShift);
    }
  }
  const factor = outputRange / inputRange;
  let convert;
  if (outputBounds.isInt) {
    convert = /* @__PURE__ */ __name((input) => Math.trunc((input - inputShift) * factor + outputShift), "convert");
  } else {
    convert = /* @__PURE__ */ __name((input) => (input - inputShift) * factor + outputShift, "convert");
  }
  let fn;
  if (ifPresent) {
    fn = /* @__PURE__ */ __name(((input) => input == null ? void 0 : convert(input)), "fn");
  } else {
    fn = convert;
  }
  return addTypedProperties(fn, outputBounds, outputBounds.typeName, fnName);
}, "scaleBounded");
export {
  scaleBounded
};
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