Attempt 1 at creating a composer package, putting it on Packagist, an…

…d including it in my project.

composer.json

@@ -0,0 +1,22 @@
+{
+    "name": "stevendesu/world-distance",
+    "description": "A Laravel 5 package for calculating the distance between two given points on a globe. Optionally uses Google's Distance Matrix API. By default just uses math and assumes a spherical Earth.",
+    "keywords": ["laravel", "laravel 5", "distance", "matrix", "geography"],
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Steven Barnett",
+            "email": "[email protected]"
+        }
+    ],
+    "require": {
+        "php": ">=5.3.0",
+        "illuminate/support": "~5.0"
+    },
+    "autoload": {
+        "psr-4": {
+          "Stevendesu\\WorldDistance\\": "src"
+        }
+    },
+    "minimum-stability": "stable"
+}

config/worlddistance.php

@@ -0,0 +1,18 @@
+<?php
+
+return array(
+
+    /*
+    |--------------------------------------------------------------------------
+    | Earth radius
+    |--------------------------------------------------------------------------
+    |
+    | This is the value that will be used in distance calculations. The unit on
+    | this value equals the unit that will be returned. e.g. if this value is
+    | in meters, the return value will be in meters.
+    |
+    */
+
+    'earth_radius' => 6378100, // Meters
+
+);

src/WorldDistance.php

@@ -0,0 +1,56 @@
+<?php namespace Stevendesu\WorldDistance;
+
+// For Google Maps API caching
+use Stevendesu\WorldDistance\WorldDistanceRecord;
+
+// For logging major fail
+use Monolog\Handler\StreamHandler;
+use Monolog\Logger;
+
+// Default like units, base location, or Earth size
+use Illuminate\Config\Repository;
+use Illuminate\Database\DatabaseManager;
+
+class WorldDistance {
+
+	/**
+	* Illuminate config repository instance.
+	*
+	* @var \Illuminate\Config\Repository
+	*/
+	protected $config;
+
+	/**
+	* Illuminate database manager instance.
+	*
+	* @var \Illuminate\Database\DatabaseManager
+	*/
+	protected $database;
+
+	/**
+	 * Create a new WorldDistance instance.
+	 *
+	 * @param  \Illuminate\Config\Repository         $config
+	 * @param  \Illuminate\Database\DatabaseManager  $database
+	 */
+	public function __construct(Repository $config, DatabaseManager $database) {
+		$this->config = $config;
+		$this->database = $database;
+	}
+
+	// calculate the distance in kilometers
+	public function getDistance($LatLng1, $LatLng2, $googleMaps = false) {
+		if( $googleMaps ) {
+			return $this->getGoogleMapsDistance($LatLng1, $LatLng2);
+		}
+
+		$dLat = deg2rad($LatLng2[0] - $LatLng1[0]);
+		$dLon = deg2rad($LatLng2[1] - $LatLng1[1]);
+
+		$a = sin($dLat/2) * sin($dLat/2) + cos(deg2rad($LatLng1[0])) * cos(deg2rad($LatLng2[0])) * sin($dLon/2) * sin($dLon/2);
+		$b = 2 * asin(sqrt($a));
+		$c = $this->config->get('worlddistance.radius') * $b;
+
+		return $c;
+	}
+}

src/WorldDistanceFacade.php

@@ -0,0 +1,14 @@
+<?php namespace Stevendesu\WorldDistance;
+
+use Illuminate\Support\Facades\Facade;
+
+class WorldDistanceFacade extends Facade {
+
+    /**
+     * Get the registered name of the component.
+     *
+     * @return string
+     */
+    protected static function getFacadeAccessor() { return 'distance'; }
+
+}

src/WorldDistanceServiceProvider.php

@@ -0,0 +1,52 @@
+<?php namespace Stevendesu\WorldDistance;
+
+use Illuminate\Support\ServiceProvider;
+
+class WorldDistanceServiceProvider extends ServiceProvider {
+
+	/**
+	 * Indicates if loading of the provider is deferred.
+	 *
+	 * @var bool
+	 */
+	protected $defer = false;
+
+	/**
+	 * Bootstrap the application events.
+	 *
+	 * @return void
+	 */
+	public function boot()
+	{
+		$this->package('stevendesu/world-distance');
+
+		$this->publishes([
+			__DIR__.'/../config/worlddistance.php' => config_path('worlddistance.php'),
+		]);
+	}
+
+	/**
+	 * Register the service provider.
+	 *
+	 * @return void
+	 */
+	public function register()
+	{
+		// Register providers.
+		$this->app['distance'] = $this->app->share(function($app)
+		{
+			return new WorldDistance($app['config'], $app['db']);
+		});
+	}
+
+	/**
+	 * Get the services provided by the provider.
+	 *
+	 * @return array
+	 */
+	public function provides()
+	{
+		return ['distance'];
+	}
+
+}