implement heal action

src/Test/Card/Action/Heal.php

@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OpenLegends\Asset\Test\Card\Action;
+
+class Heal extends \OpenLegends\Engine\Abstract\Card\Action
+{
+    private \OpenLegends\Engine\Abstract\Card $_card;
+
+    public function __construct(
+        \OpenLegends\Engine\Abstract\Card $card
+    ) {
+        $this->_card = $card;
+    }
+
+    public function card(
+        \OpenLegends\Engine\Abstract\Card &$card,
+        ?int $power = null
+    ): void
+    {
+        $card->setHealth(
+            $card->getHealth() + ($power ? $power : $this->_card->getPower())
+        );
+    }
+
+    public function player(
+        \OpenLegends\Engine\Abstract\Player &$player,
+        ?int $power = null
+    ): void
+    {
+        $player->setHealth(
+            $player->getHealth() + ($power ? $power : $this->_card->getPower())
+        );
+    }
+}