mcMMO/src/main/java/com/gmail/nossr50/util/Hardcore.java

package com.gmail.nossr50.util;

import org.bukkit.ChatColor;
import org.bukkit.entity.Player;

import com.gmail.nossr50.config.Config;
import com.gmail.nossr50.datatypes.PlayerProfile;
import com.gmail.nossr50.datatypes.SkillType;

public abstract class Hardcore {

    public static void invokeStatPenalty(Player player) {
        double hardcorePenalty = Config.getInstance().getHardcoreDeathStatPenaltyPercentage();

        if (hardcorePenalty <= 0 || hardcorePenalty > 100) {
            return;
        }

        PlayerProfile playerProfile = Users.getProfile(player);
        int totalLost = 0;

        for (SkillType skillType : SkillType.values()) {
            if (skillType.equals(SkillType.ALL)) {
                continue;
            }

            int playerSkillLevel = playerProfile.getSkillLevel(skillType);

            //Should we really care about negative skill levels?
            if (playerSkillLevel <= 0) {
                continue;
            }

            int levelsLost = (int) (playerSkillLevel * (hardcorePenalty * 0.01D));
            totalLost += levelsLost;

            playerProfile.modifySkill(skillType, playerSkillLevel - levelsLost);
        }

        player.sendMessage(ChatColor.GOLD + "[mcMMO] " + ChatColor.DARK_RED + "You've lost " + ChatColor.BLUE + totalLost + ChatColor.DARK_RED + " from death.");
    }

    public static void invokeVampirism(Player killer, Player victim) {
        double vampirismLeech = Config.getInstance().getHardcoreVampirismStatLeechPercentage();

        if (vampirismLeech <= 0 || vampirismLeech > 100) {
            return;
        }

        PlayerProfile killerProfile = Users.getProfile(killer);
        PlayerProfile victimProfile = Users.getProfile(victim);
        int totalStolen = 0;

        for (SkillType skillType : SkillType.values()) {
            if (skillType.equals(SkillType.ALL)) {
                continue;
            }

            int killerSkillLevel = killerProfile.getSkillLevel(skillType);
            int victimSkillLevel = victimProfile.getSkillLevel(skillType);

            //Should we really care about negative skill levels?
            if (victimSkillLevel <= 0 || victimSkillLevel < killerSkillLevel / 2) {
                continue;
            }

            int levelsStolen = (int) (victimSkillLevel * (vampirismLeech * 0.01D));
            totalStolen += levelsStolen;

            killerProfile.modifySkill(skillType, killerSkillLevel + levelsStolen);
            victimProfile.modifySkill(skillType, victimSkillLevel - levelsStolen);
        }

        if (totalStolen > 0) {
            killer.sendMessage(ChatColor.GOLD + "[mcMMO] " + ChatColor.DARK_AQUA + "You've stolen " + ChatColor.BLUE + totalStolen + ChatColor.DARK_AQUA + " levels from that player.");
            victim.sendMessage(ChatColor.GOLD + "[mcMMO] " + ChatColor.YELLOW + killer.getName() + ChatColor.DARK_RED + " has stolen " + ChatColor.BLUE + totalStolen + ChatColor.DARK_RED + " levels from you!");
        }
        else {
            killer.sendMessage(ChatColor.GOLD + "[mcMMO] " + ChatColor.GRAY + "That player was too unskilled to grant you any knowledge.");
            victim.sendMessage(ChatColor.GOLD + "[mcMMO] " + ChatColor.YELLOW + killer.getName() + ChatColor.GRAY + " was unable to steal knowledge from you!");
        }
    }
}