Allow for embedding Google Maps into your Wordpress posts

wp-google-map-shortcode.php

add_shortcode('map', 'map_shortcode');
function map_shortcode($atts){
	extract( shortcode_atts(array("key" => '', "mode" => 'place', "q" => '', "center" => '', "origin" => '', "destination" => '', "waypoints" => '', "avoid" => '', "zoom" => '', "maptype" => 'roadmap', "language" => '',  "region" => '', "width" => '100%', "height" => '250', "class" => '', "style" => ''), $atts) );  	
	if ( $key == '' ) {
		$key = ''; //@TODO: Replace with your own key to avoid designating a key every time.
	}
	if ( $q != '' ) {
		$q = str_replace(' ', '+', $q);
		$q = '&q=' . $q;
	}
	if ( $mode == 'directions' ) {
		if ( $origin != '' ) {
			$origin = str_replace(' ', '+', $origin);
			$origin = '&origin=' . $origin;
		}
		if ( $destination != '' ) {
			$destination = str_replace(' ', '+', $destination);
			$destination = '&destination=' . $destination;
		}
		if ( $waypoints != '' ) {
			$waypoints = str_replace(' ', '+', $waypoints);
			$waypoints = '&waypoints=' . $waypoints;
		}
		if ( $avoid != '' ) {
			$avoid = '&avoid=' . $avoid;
		}
	}
	if ( $center != '' ) {
		$center = '&center=' . $center;
	}
	if ( $language != '' ) {
		$language = '&language=' . $language;
	}
	if ( $region != '' ) {
		$region = '&region=' . $region;
	}
	if ( $zoom != '' ) {
		$zoom = '&zoom=' . $zoom;
	}
	return '<iframe class="nebula-googlemap-shortcode googlemap ' . $class . '" width="' . $width . '" height="' . $height . '" frameborder="0" src="https://www.google.com/maps/embed/v1/' . $mode . '?key=' . $key . $q . $zoom . $center . '&maptype=' . $maptype . $language . $region . '" style="' . $style . '"></iframe>';
}