增加一些动作/结构并且补注释:( 呜呜呜补注释好累头号疼

src/main/java/top/sunsetlab/actions/PlayAnvilSound.java

@@ -0,0 +1,20 @@
+package top.sunsetlab.actions;
+
+import org.bukkit.Location;
+import org.bukkit.Sound;
+import org.bukkit.entity.Player;
+
+/// 向调用者播放铁砧的声音
+public class PlayAnvilSound implements IActionBase {
+    /**
+     * 调用动作
+     * @param location 动作执行位置
+     * @param caller 动作执行者
+     * @return 是否成功
+     */
+    @Override
+    public boolean call(Location location, Player caller) {
+        caller.playSound(location, Sound.BLOCK_ANVIL_LAND, 1, 1);
+        return true;
+    }
+}