Disable commands if env vars are missing

commands/games-sp/hangman.js

@@ -82,7 +82,7 @@ module.exports = class HangmanCommand extends Command {
 				points++;
 			}
 		}
-		const defined = await this.defineWord(word);
+		const defined = WEBSTER_KEY ? await this.defineWord(word) : null;
 		if (word.length === confirmation.length || guessed) {
 			return msg.say(stripIndents`
 				You won, it was ${word}!

commands/random-img/xiao.js

@@ -52,6 +52,7 @@ module.exports = class XiaoCommand extends Command {
 		else if (site === 'deviant') result = `Art by <https://www.deviantart.com/${source[2]}>`;
 		else if (site === 'pixiv') result = `Art Source: <https://www.pixiv.net/en/artworks/${source[2]}>`;
 		else result = `Art by ${site}`;
+		if (!SAUCENAO_KEY) return result;
 		try {
 			const data = await this.sauceNao(img);
 			if (data && data[0].similarity > 90) {

commands/voice/play.js

@@ -62,6 +62,7 @@ module.exports = class PlayCommand extends Command {
 	async searchForVideo(query, nsfw) {
 		if (ytdl.validateURL(query)) return ytdl.getURLVideoID(query);
 		if (ytdl.validateID(query)) return query;
+		if (!GOOGLE_KEY) return null;
 		const { body } = await request
 			.get('https://www.googleapis.com/youtube/v3/search')
 			.query({