diff --git a/src/main/java/com/gmail/mikeundead/HandlePlayerPrefix.java b/src/main/java/com/gmail/mikeundead/HandlePlayerPrefix.java
index 46637b4..c40d0d7 100644
--- a/src/main/java/com/gmail/mikeundead/HandlePlayerPrefix.java
+++ b/src/main/java/com/gmail/mikeundead/HandlePlayerPrefix.java
@@ -13,92 +13,92 @@ import org.bukkit.event.player.PlayerLoginEvent;
 import org.bukkit.event.player.PlayerQuitEvent;
 
 public class HandlePlayerPrefix implements Listener {
-	private final DatabaseHandler databaseHandler;
-	private final Ranks ranks;
-	@SuppressWarnings("unused")
-	private final PvPTitles pvpTitles;
+    private final DatabaseHandler databaseHandler;
+    private final Ranks ranks;
+    @SuppressWarnings("unused")
+    private final PvPTitles pvpTitles;
 
-	Map<String, Integer> map = new HashMap<String, Integer>();
+    Map<String, Integer> map = new HashMap<String, Integer>();
 
-	public HandlePlayerPrefix(final DatabaseHandler databaseHandler, final Ranks ranks, final PvPTitles pvpTitles) {
-		this.databaseHandler = databaseHandler;
-		this.ranks = ranks;
-		this.pvpTitles = pvpTitles;
-	}
+    public HandlePlayerPrefix(final DatabaseHandler databaseHandler, final Ranks ranks, final PvPTitles pvpTitles) {
+        this.databaseHandler = databaseHandler;
+        this.ranks = ranks;
+        this.pvpTitles = pvpTitles;
+    }
 
-	@EventHandler
-	public void onKill(final PlayerDeathEvent death) {
-		int kills = 0;
-		if (death.getEntity().getKiller() != null) {
-			final String killed = death.getEntity().getName();
-			final Player player = death.getEntity().getKiller();
+    @EventHandler
+    public void onKill(final PlayerDeathEvent death) {
+        int kills = 0;
+        if (death.getEntity().getKiller() != null) {
+            final String killed = death.getEntity().getName();
+            final Player player = death.getEntity().getKiller();
 
-			if (this.map.containsKey(player.getName())) {
-				kills = this.map.get(player.getName());
-			}
-			if (this.map.containsKey(killed)) {
-				this.map.put(killed, 0);
-			}
-			this.databaseHandler.LoadPlayerData(killed);
-			final int killedpoint = databaseHandler.getPoints();
-			this.databaseHandler.LoadPlayerData(player.getName());
-			final int fame = this.databaseHandler.getFame();
-			if (!player.getName().equalsIgnoreCase(killed)) {
-				this.calculateFame(killed, player, fame, kills, killedpoint);
-			}
-			kills++;
-			this.map.put(player.getName(), kills);
-		}
-	}
+            if (this.map.containsKey(player.getName())) {
+                kills = this.map.get(player.getName());
+            }
+            if (this.map.containsKey(killed)) {
+                this.map.put(killed, 0);
+            }
+            this.databaseHandler.LoadPlayerData(killed);
+            final int killedpoint = databaseHandler.getPoints();
+            this.databaseHandler.LoadPlayerData(player.getName());
+            final int fame = this.databaseHandler.getFame();
+            if (!player.getName().equalsIgnoreCase(killed)) {
+                this.calculateFame(killed, player, fame, kills, killedpoint);
+            }
+            kills++;
+            this.map.put(player.getName(), kills);
+        }
+    }
 
-	@EventHandler
-	public void onPlayerChat(final AsyncPlayerChatEvent event) {
-		String rank = null;
-		this.databaseHandler.LoadPlayerData(event.getPlayer().getName());
-		this.databaseHandler.LoadConfig();
-		rank = this.ranks.GetRank(this.databaseHandler.getFame());
-		if (rank != null && rank != "") {
-			final String a = String.format(ChatColor.WHITE + "[" + this.databaseHandler.PrefixColor + rank + ChatColor.WHITE + "] ");
-			final String format = event.getFormat();
-			event.setFormat(a + format);
-		}
-	}
+    @EventHandler
+    public void onPlayerChat(final AsyncPlayerChatEvent event) {
+        String rank = null;
+        this.databaseHandler.LoadPlayerData(event.getPlayer().getName());
+        this.databaseHandler.LoadConfig();
+        rank = this.ranks.GetRank(this.databaseHandler.getFame());
+        if (rank != null && rank != "") {
+            final String a = String.format(ChatColor.WHITE + "[" + this.databaseHandler.PrefixColor + rank + ChatColor.WHITE + "] ");
+            final String format = event.getFormat();
+            event.setFormat(a + format);
+        }
+    }
 
-	@EventHandler
-	public void onPlayerLogin(final PlayerLoginEvent event) {
-		final Player player = event.getPlayer();
+    @EventHandler
+    public void onPlayerLogin(final PlayerLoginEvent event) {
+        final Player player = event.getPlayer();
 
-		try {
-			this.databaseHandler.FirstRun(player.getName());
-		} catch (final Exception e) {
-			e.printStackTrace();
-		}
-	}
+        try {
+            this.databaseHandler.FirstRun(player.getName());
+        } catch (final Exception e) {
+            e.printStackTrace();
+        }
+    }
 
-	@EventHandler
-	public void onPlayerQuit(final PlayerQuitEvent event) {
-		final Player player = event.getPlayer();
-		this.map.put(player.getName(), 0);
-	}
+    @EventHandler
+    public void onPlayerQuit(final PlayerQuitEvent event) {
+        final Player player = event.getPlayer();
+        this.map.put(player.getName(), 0);
+    }
 
-	private void calculateFame(final String killed, final Player player, int fame, final int kills, final int killedpoint) {
-		final String currentRank = this.ranks.GetRank(fame);
-		final String tag = this.databaseHandler.getTag();
-		fame++;
-		player.sendMessage(ChatColor.GREEN + "你击杀了 " + killed + " 获得一点 " + tag + ".");
-		this.databaseHandler.LoadPlayerData(player.getName());
-		if (killedpoint == 1) {
-			player.sendMessage(ChatColor.RED + killed + " 已经是穷光蛋了 无法获得任何点数.");
-		} else {
-			player.sendMessage(ChatColor.GREEN + "你击杀了 " + killed + " 获得了点数1点(可兑换物品).");
-			this.databaseHandler.SavePlayerPoint(player.getName(), databaseHandler.getPoints() + 1);
-			this.databaseHandler.SavePlayerPoint(killed, killedpoint - 1);
-		}
-		this.databaseHandler.SavePlayerFame(player.getName(), fame);
-		final String newRank = this.ranks.GetRank(fame);
+    private void calculateFame(final String killed, final Player player, int fame, final int kills, final int killedpoint) {
+        final String currentRank = this.ranks.GetRank(fame);
+        final String tag = this.databaseHandler.getTag();
+        fame++;
+        player.sendMessage(ChatColor.GREEN + "你击杀了 " + killed + " 获得一点 " + tag + ".");
+        this.databaseHandler.LoadPlayerData(player.getName());
+        if (killedpoint <= 0) {
+            player.sendMessage(ChatColor.RED + killed + " 已经是穷光蛋了 无法获得任何点数.");
+        } else {
+            player.sendMessage(ChatColor.GREEN + "你击杀了 " + killed + " 获得了点数1点(可兑换物品).");
+            this.databaseHandler.SavePlayerPoint(player.getName(), databaseHandler.getPoints() + 1);
+            this.databaseHandler.SavePlayerPoint(killed, killedpoint - 1);
+        }
+        this.databaseHandler.SavePlayerFame(player.getName(), fame);
+        final String newRank = this.ranks.GetRank(fame);
 
-		if (!currentRank.equalsIgnoreCase(newRank)) {
-			player.sendMessage(ChatColor.GREEN + "恭喜! 您已晋升为 " + newRank);
-		}
-	}
+        if (!currentRank.equalsIgnoreCase(newRank)) {
+            player.sendMessage(ChatColor.GREEN + "恭喜! 您已晋升为 " + newRank);
+        }
+    }
 }
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