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.tokeignore

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+package.json
+package-lock.json
+tsconfig.json
+*.md

README.md

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+# Ingress Drone Explorer - Node.js
+
+[![Lines of code][nodejs-loc]][nodejs-repo]
+
+An offline CLI tool to analyze reachable Portals for Ingress Drone Mark I.
+
+Implementations in different languages are listed and compared in [Benchmark](#benchmark).
+
+## Build from Source
+
+### Requirements
+
+- Node 18 (Backporting should be possible and easy)
+
+### Build
+
+```sh
+$ npm init
+$ npm run build
+$ npm run package # Package an executable with pkg
+```
+
+Please notice the [`pkg`](https://github.com/vercel/pkg) will download necessary binary files to `~/.pkg-cache`, it may be overriden by environment variable `PKG_CACHE_PATH`:
+
+```sh
+$ export PKG_CACHE_PATH=./.pkg-cache
+$ npm run package
+```
+
+## Exploration Guide
+
+### Prepare Files
+
+All the files should be JSON.
+
+1. Portal list file(s), should be an array of:
+    ```jsonc
+    {
+        "guid": "GUID of Portal",
+        "title": "Title of Portal",
+        "lngLat": {
+            "lng": 90.0,    // Longitude
+            "lat": 45.0     // Latitude
+        }
+    }
+    ```
+2. Portal Key list file, should be an array of GUID (Not required but strongly recommended)
+
+Maybe an IITC plugin like [this](https://github.com/lucka-me/toolkit/tree/master/Ingress/Portal-List-Exporter) helps.
+
+### Usage
+
+```
+$ ingress-drone-explorer <portal-list-file> -s <longitude,latitude> [options...]
+```
+
+#### Options
+
+Explore with key list:
+```sh
+$ ... -k <path-to-key-list-file>
+```
+
+Output cells JSON for IITC Draw tools:
+```sh
+$ ... --output-drawn-items <path-to-output>
+```
+
+Help information:
+```sh
+$ ingress-drone-explorer -h
+```
+
+## Benchmark
+
+### Sample Data
+
+- Area: Shenzhen downtown and Hong Kong
+- Portals: 34,041 Portals in 13,451 cells
+- Keys: 11 matched
+- Start Point: Shenzhen Bay Sports Center
+- Result: 30,462 Portals and 11,342 cells are reachable
+
+### Result
+
+Average exploration time consumed of 100 executions on MacBook Air (M2).
+
+|         Implementation | Lines of Code   |  Commit                             | Consumed
+| ---------------------: | :-------------: | :---------------------------------: | :---
+| [Node.js][nodejs-repo] | ![][nodejs-loc] | `Current`                           | 1.295 s
+|        [C++][cpp-repo] | ![][cpp-loc]    | [`db5a976`][cpp-benchmark-commit]   | 0.583 s
+|    [Swift][swift-repo] | ![][swift-loc]  | [`68ae1b4`][swift-benchmark-commit] | 3.000 s
+
+The results of other implementations may be outdated, please check their repositories for latest results.
+
+[nodejs-repo]: https://github.com/lucka-me/ingress-drone-explorer-nodejs
+[nodejs-loc]: https://img.shields.io/tokei/lines/github/lucka-me/ingress-drone-explorer-nodejs
+
+[cpp-repo]: https://github.com/lucka-me/ingress-drone-explorer-cpp
+[cpp-loc]: https://img.shields.io/tokei/lines/github/lucka-me/ingress-drone-explorer-cpp
+[cpp-benchmark-commit]: https://github.com/lucka-me/ingress-drone-explorer-cpp/commit/db5a976
+
+[swift-repo]: https://github.com/lucka-me/ingress-drone-explorer-swift
+[swift-loc]: https://img.shields.io/tokei/lines/github/lucka-me/ingress-drone-explorer-swift
+[swift-benchmark-commit]: https://github.com/lucka-me/ingress-drone-explorer-swift/commit/68ae1b4