From e07241d4d7a77c8d19aa933b813087a9c882faf4 Mon Sep 17 00:00:00 2001
From: Olof Larsson <olof@sylt.nu>
Date: Tue, 5 Mar 2013 09:52:08 +0100
Subject: [PATCH] Adding in an event on PS teleportation.

---
 .../event/MCorePlayerPSTeleportEvent.java     | 61 +++++++++++++++++++
 .../mcore/mixin/TeleportMixinDefault.java     |  9 ++-
 .../massivecraft/mcore/util/TimeDiffUtil.java | 17 ++++++
 3 files changed, 86 insertions(+), 1 deletion(-)
 create mode 100644 src/com/massivecraft/mcore/event/MCorePlayerPSTeleportEvent.java

diff --git a/src/com/massivecraft/mcore/event/MCorePlayerPSTeleportEvent.java b/src/com/massivecraft/mcore/event/MCorePlayerPSTeleportEvent.java
new file mode 100644
index 00000000..81652d25
--- /dev/null
+++ b/src/com/massivecraft/mcore/event/MCorePlayerPSTeleportEvent.java
@@ -0,0 +1,61 @@
+package com.massivecraft.mcore.event;
+
+import org.bukkit.Bukkit;
+import org.bukkit.Location;
+import org.bukkit.entity.Player;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
+
+import com.massivecraft.mcore.PS;
+
+public class MCorePlayerPSTeleportEvent extends Event implements Cancellable, Runnable
+{
+	// -------------------------------------------- //
+	// REQUIRED EVENT CODE
+	// -------------------------------------------- //
+	
+	private static final HandlerList handlers = new HandlerList();
+	@Override public HandlerList getHandlers() { return handlers; }
+	public static HandlerList getHandlerList() { return handlers; }
+	
+	// -------------------------------------------- //
+	// FIELDS
+	// -------------------------------------------- //
+	
+	private boolean cancelled;
+	@Override public boolean isCancelled() { return this.cancelled; }
+	@Override public void setCancelled(boolean cancelled) { this.cancelled = cancelled; }
+	
+	private final Player player;
+	public Player getPlayer() { return this.player; }
+	
+	private final Location from;
+	public Location getFrom() { return this.from; }
+	
+	private PS to;
+	public PS getTo() { return this.to; }
+	public void setTo(PS to) { this.to = to; }
+	
+	// -------------------------------------------- //
+	// CONSTRUCT
+	// -------------------------------------------- //
+	
+	public MCorePlayerPSTeleportEvent(Player player, Location from, PS to)
+	{
+		this.player = player;
+		this.from = from;
+		this.to = to;
+	}
+	
+	// -------------------------------------------- //
+	// RUN
+	// -------------------------------------------- //
+	
+	@Override
+	public void run()
+	{
+		Bukkit.getPluginManager().callEvent(this);
+	}
+	
+}
diff --git a/src/com/massivecraft/mcore/mixin/TeleportMixinDefault.java b/src/com/massivecraft/mcore/mixin/TeleportMixinDefault.java
index 87e8a114..3e915f30 100644
--- a/src/com/massivecraft/mcore/mixin/TeleportMixinDefault.java
+++ b/src/com/massivecraft/mcore/mixin/TeleportMixinDefault.java
@@ -6,6 +6,7 @@ import org.bukkit.entity.Player;
 import org.bukkit.util.Vector;
 
 import com.massivecraft.mcore.PS;
+import com.massivecraft.mcore.event.MCorePlayerPSTeleportEvent;
 import com.massivecraft.mcore.util.SenderUtil;
 import com.massivecraft.mcore.util.Txt;
 
@@ -24,7 +25,6 @@ public class TeleportMixinDefault extends TeleportMixinAbstract
 	
 	public static void teleportEntity(Entity entity, PS ps) throws TeleporterException
 	{
-		// Use a local clone of the ps to avoid altering original
 		ps = ps.clone();
 		
 		// Ensure the ps has a world name
@@ -58,6 +58,13 @@ public class TeleportMixinDefault extends TeleportMixinAbstract
 		}
 		else
 		{
+			// Run event
+			MCorePlayerPSTeleportEvent event = new MCorePlayerPSTeleportEvent(teleportee, teleportee.getLocation(), destinationPs.clone());
+			event.run();
+			if (event.isCancelled()) return;
+			if (event.getTo() == null) return;
+			destinationPs = event.getTo().clone();
+			
 			teleportEntity(teleportee, destinationPs);
 		}
 	}
diff --git a/src/com/massivecraft/mcore/util/TimeDiffUtil.java b/src/com/massivecraft/mcore/util/TimeDiffUtil.java
index a9bf2735..3fd0ced8 100644
--- a/src/com/massivecraft/mcore/util/TimeDiffUtil.java
+++ b/src/com/massivecraft/mcore/util/TimeDiffUtil.java
@@ -1,6 +1,7 @@
 package com.massivecraft.mcore.util;
 
 import java.util.ArrayList;
+import java.util.Iterator;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
@@ -128,6 +129,22 @@ public class TimeDiffUtil
 		return unitcounts(millis, TimeUnit.getAll());
 	}
 	
+	public static LinkedHashMap<TimeUnit, Long> limit(LinkedHashMap<TimeUnit, Long> unitcounts, int limit)
+	{
+		LinkedHashMap<TimeUnit, Long> ret = new LinkedHashMap<TimeUnit, Long>();
+		
+		Iterator<Entry<TimeUnit, Long>> iter = unitcounts.entrySet().iterator();
+		int i = 0;
+		while (iter.hasNext() && i < limit)
+		{
+			Entry<TimeUnit, Long> entry = iter.next();
+			ret.put(entry.getKey(), entry.getValue());
+			i++;
+		}
+		
+		return ret;
+	}
+	
 	// -------------------------------------------- //
 	// FORMAT
 	// -------------------------------------------- //