package com.gmail.nossr50.events.experience;

import org.bukkit.entity.Player;

import com.gmail.nossr50.skills.utilities.SkillType;

/**
 * Called when a user levels up in a skill
 */
public class McMMOPlayerLevelUpEvent extends McMMOPlayerExperienceEvent {
    private int levelsGained;

    public McMMOPlayerLevelUpEvent(Player player, SkillType skill) {
        super(player, skill);
        this.levelsGained = 1;
    }

    public McMMOPlayerLevelUpEvent(Player player, SkillType skill, int levelsGained) {
        super(player, skill);
        this.levelsGained = levelsGained;
    }

    /**
     * @return The number of levels gained in this event
     */
    public int getLevelsGained() {
        return levelsGained;
    }

    /**
     * @param levelsGained int number of levels gained in this event
     */
    public void setLevelsGained(int levelsGained) {
        this.levelsGained = levelsGained;
    }
}

package com.gmail.nossr50.events.experience;

import org.bukkit.entity.Player;

import com.gmail.nossr50.skills.utilities.SkillType;

/**
 * Called when a user levels up in a skill
 */
public class McMMOPlayerLevelUpEvent extends McMMOPlayerExperienceEvent {
    private int levelsGained;

    public McMMOPlayerLevelUpEvent(Player player, SkillType skill) {
        super(player, skill);
        this.levelsGained = 1;    // Always 1 for now as we call in the loop where the levelups are calculated, could change later!
    }

    /**
     * @return The number of levels gained in this event
     */
    public int getLevelsGained() {
        return levelsGained;
    }
}

--- 
+++ 
@@ -12,7 +12,12 @@
 
     public McMMOPlayerLevelUpEvent(Player player, SkillType skill) {
         super(player, skill);
-        this.levelsGained = 1;    // Always 1 for now as we call in the loop where the levelups are calculated, could change later!
+        this.levelsGained = 1;
+    }
+
+    public McMMOPlayerLevelUpEvent(Player player, SkillType skill, int levelsGained) {
+        super(player, skill);
+        this.levelsGained = levelsGained;
     }
 
     /**
@@ -21,4 +26,11 @@
     public int getLevelsGained() {
         return levelsGained;
     }
+
+    /**
+     * @param levelsGained int number of levels gained in this event
+     */
+    public void setLevelsGained(int levelsGained) {
+        this.levelsGained = levelsGained;
+    }
 }
Add constructor for adding multiple levels at once. Need to work out how
to handle level-ups in order for this to be properly cancelled, however.