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https://github.com/thepaperpilot/Planar-Pioneers.git
synced 2024-11-22 00:21:31 +00:00
Make clamping functions pass-throughs for inverting
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2 changed files with 153 additions and 58 deletions
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@ -56,6 +56,10 @@ export function unrefFormulaSource(value: FormulaSource, variable?: DecimalSourc
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return value instanceof Formula ? value.evaluate(variable) : unref(value);
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}
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function passthrough(value: DecimalSource) {
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return value;
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}
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function invertNeg(value: DecimalSource, lhs: FormulaSource) {
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if (hasVariable(lhs)) {
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return lhs.invert(Decimal.neg(value));
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@ -1216,19 +1220,63 @@ export default class Formula<T extends [FormulaSource] | FormulaSource[]> {
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}
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public static max(value: FormulaSource, other: FormulaSource): GenericFormula {
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return new Formula({ inputs: [value, other], evaluate: Decimal.max });
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return new Formula({
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inputs: [value, other],
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evaluate: Decimal.max,
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invert: passthrough as (
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value: DecimalSource,
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...inputs: [FormulaSource, FormulaSource]
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) => DecimalSource,
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invertIntegral: passthrough as (
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value: DecimalSource,
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...inputs: [FormulaSource, FormulaSource]
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) => DecimalSource
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});
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}
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public static min(value: FormulaSource, other: FormulaSource): GenericFormula {
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return new Formula({ inputs: [value, other], evaluate: Decimal.min });
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return new Formula({
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inputs: [value, other],
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evaluate: Decimal.min,
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invert: passthrough as (
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value: DecimalSource,
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...inputs: [FormulaSource, FormulaSource]
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) => DecimalSource,
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invertIntegral: passthrough as (
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value: DecimalSource,
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...inputs: [FormulaSource, FormulaSource]
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) => DecimalSource
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});
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}
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public static minabs(value: FormulaSource, other: FormulaSource): GenericFormula {
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return new Formula({ inputs: [value, other], evaluate: Decimal.minabs });
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return new Formula({
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inputs: [value, other],
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evaluate: Decimal.minabs,
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invert: passthrough as (
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value: DecimalSource,
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...inputs: [FormulaSource, FormulaSource]
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) => DecimalSource,
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invertIntegral: passthrough as (
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value: DecimalSource,
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...inputs: [FormulaSource, FormulaSource]
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) => DecimalSource
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});
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}
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public static maxabs(value: FormulaSource, other: FormulaSource): GenericFormula {
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return new Formula({ inputs: [value, other], evaluate: Decimal.maxabs });
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return new Formula({
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inputs: [value, other],
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evaluate: Decimal.maxabs,
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invert: passthrough as (
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value: DecimalSource,
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...inputs: [FormulaSource, FormulaSource]
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) => DecimalSource,
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invertIntegral: passthrough as (
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value: DecimalSource,
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...inputs: [FormulaSource, FormulaSource]
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) => DecimalSource
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});
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}
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public static clamp(
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@ -1236,15 +1284,48 @@ export default class Formula<T extends [FormulaSource] | FormulaSource[]> {
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min: FormulaSource,
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max: FormulaSource
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): GenericFormula {
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return new Formula({ inputs: [value, min, max], evaluate: Decimal.clamp });
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return new Formula({
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inputs: [value, min, max],
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evaluate: Decimal.clamp,
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invert: passthrough as (
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value: DecimalSource,
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...inputs: [FormulaSource, FormulaSource, FormulaSource]
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) => DecimalSource,
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invertIntegral: passthrough as (
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value: DecimalSource,
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...inputs: [FormulaSource, FormulaSource, FormulaSource]
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) => DecimalSource
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});
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}
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public static clampMin(value: FormulaSource, min: FormulaSource): GenericFormula {
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return new Formula({ inputs: [value, min], evaluate: Decimal.clampMin });
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return new Formula({
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inputs: [value, min],
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evaluate: Decimal.clampMin,
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invert: passthrough as (
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value: DecimalSource,
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...inputs: [FormulaSource, FormulaSource]
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) => DecimalSource,
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invertIntegral: passthrough as (
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value: DecimalSource,
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...inputs: [FormulaSource, FormulaSource]
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) => DecimalSource
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});
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}
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public static clampMax(value: FormulaSource, max: FormulaSource): GenericFormula {
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return new Formula({ inputs: [value, max], evaluate: Decimal.clampMax });
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return new Formula({
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inputs: [value, max],
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evaluate: Decimal.clampMax,
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invert: passthrough as (
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value: DecimalSource,
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...inputs: [FormulaSource, FormulaSource]
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) => DecimalSource,
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invertIntegral: passthrough as (
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value: DecimalSource,
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...inputs: [FormulaSource, FormulaSource]
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) => DecimalSource
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});
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}
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public static pLog10(value: FormulaSource): GenericFormula {
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@ -124,22 +124,14 @@ const invertibleOneParamFunctionNames = [
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"root",
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"slog"
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] as const;
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const nonInvertibleOneParamFunctionNames = [
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"max",
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"min",
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"maxabs",
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"minabs",
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"clampMin",
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"clampMax",
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"layeradd10"
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] as const;
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const nonInvertibleOneParamFunctionNames = ["layeradd10"] as const;
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const integrableOneParamFunctionNames = ["add", "sub", "mul", "div", "log", "pow", "root"] as const;
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const nonIntegrableOneParamFunctionNames = [...nonInvertibleOneParamFunctionNames, "slog"] as const;
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const invertibleIntegralOneParamFunctionNames = integrableOneParamFunctionNames;
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const nonInvertibleIntegralOneParamFunctionNames = nonIntegrableOneParamFunctionNames;
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const invertibleTwoParamFunctionNames = ["tetrate", "layeradd", "iteratedexp"] as const;
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const nonInvertibleTwoParamFunctionNames = ["clamp", "iteratedlog", "pentate"] as const;
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const nonInvertibleTwoParamFunctionNames = ["iteratedlog", "pentate"] as const;
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const nonIntegrableTwoParamFunctionNames = [
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...invertibleTwoParamFunctionNames,
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...nonInvertibleZeroParamFunctionNames
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@ -308,24 +300,28 @@ describe("Creating Formulas", () => {
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});
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}
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describe("Invertible 0-param", () => {
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invertibleZeroParamFunctionNames.forEach(names =>
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describe(names, () => {
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checkFormula(names, [0] as const);
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testValues.forEach(i => testFormulaCall(names, [i] as const));
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})
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describe("0-param", () => {
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[...invertibleZeroParamFunctionNames, ...nonInvertibleZeroParamFunctionNames].forEach(
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names =>
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describe(names, () => {
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checkFormula(names, [0] as const);
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testValues.forEach(i => testFormulaCall(names, [i] as const));
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})
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);
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});
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describe("Non-Invertible 0-param", () => {
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nonInvertibleZeroParamFunctionNames.forEach(names =>
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describe(names, () => {
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checkFormula(names, [0] as const);
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testValues.forEach(i => testFormulaCall(names, [i] as const));
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})
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);
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});
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describe("Invertible 1-param", () => {
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invertibleOneParamFunctionNames.forEach(names =>
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describe("1-param", () => {
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(
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[
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...invertibleOneParamFunctionNames,
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...nonInvertibleOneParamFunctionNames,
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"max",
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"min",
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"maxabs",
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"minabs",
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"clampMin",
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"clampMax"
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] as const
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).forEach(names =>
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describe(names, () => {
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checkFormula(names, [0, 0] as const);
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testValues.forEach(i =>
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@ -334,30 +330,14 @@ describe("Creating Formulas", () => {
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})
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);
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});
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describe("Non-Invertible 1-param", () => {
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nonInvertibleOneParamFunctionNames.forEach(names =>
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describe(names, () => {
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checkFormula(names, [0, 0] as const);
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testValues.forEach(i =>
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testValues.forEach(j => testFormulaCall(names, [i, j] as const))
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);
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})
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);
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});
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describe("Invertible 2-param", () => {
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invertibleTwoParamFunctionNames.forEach(names =>
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describe(names, () => {
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checkFormula(names, [0, 0, 0] as const);
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testValues.forEach(i =>
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testValues.forEach(j =>
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testValues.forEach(k => testFormulaCall(names, [i, j, k] as const))
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)
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);
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})
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);
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});
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describe("Non-Invertible 2-param", () => {
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nonInvertibleTwoParamFunctionNames.forEach(names =>
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describe("2-param", () => {
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(
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[
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...invertibleTwoParamFunctionNames,
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...nonInvertibleTwoParamFunctionNames,
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"clamp"
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] as const
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).forEach(names =>
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describe(names, () => {
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checkFormula(names, [0, 0, 0] as const);
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testValues.forEach(i =>
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@ -527,6 +507,21 @@ describe("Inverting", () => {
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);
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});
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describe("Inverting pass-throughs", () => {
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test("max", () => expect(Formula.max(variable, constant).invert(10)).compare_tolerance(10));
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test("min", () => expect(Formula.min(variable, constant).invert(10)).compare_tolerance(10));
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test("minabs", () =>
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expect(Formula.minabs(variable, constant).invert(10)).compare_tolerance(10));
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test("maxabs", () =>
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expect(Formula.maxabs(variable, constant).invert(10)).compare_tolerance(10));
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test("clampMax", () =>
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expect(Formula.clampMax(variable, constant).invert(10)).compare_tolerance(10));
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test("clampMin", () =>
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expect(Formula.clampMin(variable, constant).invert(10)).compare_tolerance(10));
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test("clamp", () =>
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expect(Formula.clamp(variable, constant, constant).invert(10)).compare_tolerance(10));
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});
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test("Inverting nested formulas", () => {
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const formula = Formula.add(variable, constant).times(constant);
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expect(formula.invert(100)).compare_tolerance(0);
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@ -705,6 +700,25 @@ describe("Inverting integrals", () => {
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const formula = Formula.add(variable, constant).times(constant);
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expect(formula.invertIntegral(1500)).compare_tolerance(10);
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});
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describe("Inverting integral pass-throughs", () => {
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test("max", () =>
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expect(Formula.max(variable, constant).invertIntegral(10)).compare_tolerance(10));
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test("min", () =>
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expect(Formula.min(variable, constant).invertIntegral(10)).compare_tolerance(10));
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test("minabs", () =>
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expect(Formula.minabs(variable, constant).invertIntegral(10)).compare_tolerance(10));
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test("maxabs", () =>
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expect(Formula.maxabs(variable, constant).invertIntegral(10)).compare_tolerance(10));
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test("clampMax", () =>
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expect(Formula.clampMax(variable, constant).invertIntegral(10)).compare_tolerance(10));
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test("clampMin", () =>
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expect(Formula.clampMin(variable, constant).invertIntegral(10)).compare_tolerance(10));
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test("clamp", () =>
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expect(
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Formula.clamp(variable, constant, constant).invertIntegral(10)
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).compare_tolerance(10));
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});
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});
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describe("Step-wise", () => {
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@ -980,7 +994,7 @@ describe("Buy Max", () => {
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});
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describe("Without spending", () => {
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test("Throws on non-invertible formula", () => {
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const maxAffordable = calculateMaxAffordable(Formula.abs(10), resource, false);
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const maxAffordable = calculateMaxAffordable(Formula.abs(10), resource);
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expect(() => maxAffordable.value).toThrow();
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});
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// https://www.desmos.com/calculator/5vgletdc1p
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