rpg-mcp

import nerdamer from 'nerdamer'; import 'nerdamer/Solve.js'; // Load solve plugin import 'nerdamer/Algebra.js'; // Load algebra plugin import 'nerdamer/Calculus.js'; // Load calculus plugin just in case import { CalculationResult } from './schemas.js'; export class AlgebraEngine { solve(equation: string, variable: string): CalculationResult { try { const solution = (nerdamer as any).solve(equation, variable); return { input: `solve(${equation}, ${variable})`, result: solution.toString(), steps: [`Solved for ${variable}`], timestamp: new Date().toISOString() }; } catch (error: any) { return { input: `solve(${equation}, ${variable})`, result: 'Error', steps: [`Failed to solve: ${error.message}`], timestamp: new Date().toISOString() }; } } simplify(expression: string): CalculationResult { try { const simplified = nerdamer(expression).toString(); return { input: `simplify(${expression})`, result: simplified, steps: ['Simplified expression'], timestamp: new Date().toISOString() }; } catch (error: any) { return { input: `simplify(${expression})`, result: 'Error', steps: [`Failed to simplify: ${error.message}`], timestamp: new Date().toISOString() }; } } substitute(expression: string, variables: Record<string, number | string>): CalculationResult { try { // Convert all values to strings for nerdamer const stringVars: Record<string, string> = {}; for (const [k, v] of Object.entries(variables)) { stringVars[k] = String(v); } const evaluated = nerdamer(expression, stringVars).evaluate(); return { input: `substitute(${expression}, ${JSON.stringify(variables)})`, result: evaluated.text(), // .text() returns string representation of result steps: [`Substituted variables: ${JSON.stringify(variables)}`], timestamp: new Date().toISOString() }; } catch (error: any) { return { input: `substitute(${expression}, ${JSON.stringify(variables)})`, result: 'Error', steps: [`Failed to substitute: ${error.message}`], timestamp: new Date().toISOString() }; } } differentiate(expression: string, variable: string = 'x'): CalculationResult { try { const result = nerdamer.diff(expression, variable); return { input: `diff(${expression}, ${variable})`, result: result.text(), steps: [`Differentiated with respect to ${variable}`], timestamp: new Date().toISOString() }; } catch (error: any) { return { input: `diff(${expression}, ${variable})`, result: 'Error', steps: [`Failed to differentiate: ${error.message}`], timestamp: new Date().toISOString() }; } } integrate(expression: string, variable: string = 'x'): CalculationResult { try { const result = nerdamer.integrate(expression, variable); return { input: `integrate(${expression}, ${variable})`, result: result.text(), steps: [`Integrate with respect to ${variable}`], timestamp: new Date().toISOString() }; } catch (error: any) { return { input: `integrate(${expression}, ${variable})`, result: 'Error', steps: [`Failed to integrate: ${error.message}`], timestamp: new Date().toISOString() }; } } }