Item: added some foods, cleaned up Fish abomination

@PEMapModder GET A CLIENT ALREADY

src/pocketmine/item/PoisonousPotato.php

@@ -0,0 +1,50 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+*/
+
+declare(strict_types=1);
+
+namespace pocketmine\item;
+
+use pocketmine\entity\Effect;
+use pocketmine\entity\EffectInstance;
+
+class PoisonousPotato extends Food{
+	public function __construct(int $meta = 0){
+		parent::__construct(self::POISONOUS_POTATO, $meta, "Poisonous Potato");
+	}
+
+	public function getFoodRestore() : int{
+		return 2;
+	}
+
+	public function getSaturationRestore() : float{
+		return 1.2;
+	}
+
+	public function getAdditionalEffects() : array{
+		if(mt_rand(0, 100) > 40){
+			return [
+				new EffectInstance(Effect::getEffect(Effect::POISON), 100)
+			];
+		}
+		return [];
+	}
+}