Finish Axe restructuring, modify a little bit of Swords stuff as well.

src/main/java/com/gmail/nossr50/skills/axes/AxeManager.java

@@ -82,4 +82,18 @@ public class AxeManager extends SkillManager {
             eventHandler.applyGreaterImpact();
         }
     }
+
+    /**
+     * Check for Skull Splitter ability.
+     *
+     * @param event The event to process
+     */
+    public void skullSplitter(EntityDamageByEntityEvent event) {
+        if (Misc.isNPC(player) || !Permissions.skullSplitter(player)) {
+            return;
+        }
+
+        SkullSplitterEventHandler eventHandler = new SkullSplitterEventHandler(this, event);
+        eventHandler.applyAbilityEffects();
+    }
 }

src/main/java/com/gmail/nossr50/skills/axes/SkullSplitterEventHandler.java

@@ -0,0 +1,24 @@
+package com.gmail.nossr50.skills.axes;
+
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.entity.Player;
+import org.bukkit.event.entity.EntityDamageByEntityEvent;
+
+import com.gmail.nossr50.datatypes.SkillType;
+import com.gmail.nossr50.util.Combat;
+
+public class SkullSplitterEventHandler {
+    private Player player;
+    private LivingEntity target;
+    private int damage;
+
+    protected SkullSplitterEventHandler(AxeManager manager, EntityDamageByEntityEvent event) {
+        this.player = manager.getPlayer();
+        this.target = (LivingEntity) event.getEntity();
+        this.damage = event.getDamage();
+    }
+
+    protected void applyAbilityEffects() {
+        Combat.applyAbilityAoE(player, target, damage / 2, SkillType.AXES);
+    }
+}

src/main/java/com/gmail/nossr50/skills/swords/SerratedStrikesEventHandler.java

@@ -19,9 +19,6 @@ public class SerratedStrikesEventHandler {
     }
 
     protected void applyAbilityEffects() {
-        if (player == null)
-            return;
-
         Combat.applyAbilityAoE(player, target, damage / Swords.SERRATED_STRIKES_MODIFIER, SkillType.SWORDS);
         BleedTimer.add(target, Swords.SERRATED_STRIKES_BLEED_TICKS);
     }

src/main/java/com/gmail/nossr50/skills/swords/SwordsManager.java

@@ -76,10 +76,7 @@ public class SwordsManager extends SkillManager {
     }
 
     public void serratedStrikes(LivingEntity target, int damage) {
-        if (player == null)
-            return;
-
-        if (!Permissions.serratedStrikes(player)) {
+        if (Misc.isNPC(player) || !Permissions.serratedStrikes(player)) {
             return;
         }
 

src/main/java/com/gmail/nossr50/util/Combat.java

@@ -102,7 +102,8 @@ public class Combat {
                 axeManager.criticalHitCheck(event);
                 axeManager.impact(event);
 
-                if (attackerProfile.getAbilityMode(AbilityType.SKULL_SPLIITER) && Permissions.skullSplitter(attacker)) {
+                if (attackerProfile.getAbilityMode(AbilityType.SKULL_SPLIITER)) {
+                    axeManager.skullSplitter(event);
                     applyAbilityAoE(attacker, target, event.getDamage() / 2, SkillType.AXES);
                 }