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const TAU = Math.PI / 2
const PI2 = Math.PI * 2

interface VecLike {x: number, y: number } 

/**
 * Get info about an arc formed by three points.
 *
 * @param a The start of the arc
 * @param b A point on the arc

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import { NextApiRequest, NextApiResponse } from 'next'
import chromium from 'chrome-aws-lambda'
import Cors from 'cors'
import { TDExport, TDExportTypes, TldrawApp } from '@tldraw/tldraw'

// NOTE: You might have to downgrade puppeteer etc in order to fit under the endpoint size limit of 50mb.

const cors = Cors({
  methods: ['POST'],
})

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/**
 * Find the control points for a quadratic segment from point a to point c passing through point b.
 * @param a The segments's first point
 * @param b The point to curve through
 * @param c The segment's end point
 */
export function getQuadraticControlPoints(
  a: { x: number; y: number },
  b: { x: number; y: number },
  c: { x: number; y: number }

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/**
 * Find the control points for a cubic segment from point a to point c passing through point b.
 * @param a The curve's start point
 * @param b The point to curve through
 * @param c The curve's end point
 */
export function findCubicControlPoints(
  a: { x: number; y: number },
  b: { x: number; y: number },
  c: { x: number; y: number }

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var DBOpenRequest = window.indexedDB.open("keyval-store", 1);
DBOpenRequest.onsuccess = function(event) {
  db = DBOpenRequest.result;
  var transaction = db.transaction(["keyval"], "readwrite");
  var objectStore = transaction.objectStore("keyval");
  var objectStoreRequest = objectStore.get("home");
  objectStoreRequest.onsuccess = function(event) {
    console.log(JSON.stringify(objectStoreRequest.result))
  };
};

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class Player {
  /**
   * @param {Warrior} warrior
   */
  playTurn(warrior) {
    warrior.walk()
  }
}

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// pages/api/auth/[...nextauth.ts]

// Follow docs in nextauth

import { isSignedInUserSponsoringMe } from 'utils/github'
import type { NextApiHandler, NextApiRequest, NextApiResponse } from 'next'
import NextAuth from 'next-auth'
import GithubProvider from 'next-auth/providers/github'

export default function Auth(

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type Model<T> = {
    [E in keyof T]: unknown;
}

export type DefaultModel = {
    [k: string]: unknown;
};

class View<E extends Model<E> = Model<unknown>> {
    model: E;

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/* eslint-disable */
const fs = require('fs')
const path = require('path')
const esbuild = require('esbuild')
const { gzip } = require('zlib')
const { log } = console

const cwd = process.cwd()
const pkg = require(path.join(cwd, 'package.json'))

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Mobx Undo / Redo with JSON Patches

See https://codesandbox.io/s/mobx-undo-redo-v2-ofty1 for example.