Add ability to block chorus fruit and ender pearl teleportation. Fixes #51

src/com/massivecraft/factions/Factions.java

@@ -26,6 +26,7 @@ import com.massivecraft.factions.engine.EngineChat;
 import com.massivecraft.factions.engine.EngineChunkChange;
 import com.massivecraft.factions.engine.EngineCleanInactivity;
 import com.massivecraft.factions.engine.EngineDenyCommands;
+import com.massivecraft.factions.engine.EngineDenyTeleport;
 import com.massivecraft.factions.engine.EngineEcon;
 import com.massivecraft.factions.engine.EngineExploit;
 import com.massivecraft.factions.engine.EngineFlagEndergrief;
@@ -218,6 +219,7 @@ public class Factions extends MassivePlugin
 			EngineChunkChange.class,
 			EngineCleanInactivity.class,
 			EngineDenyCommands.class,
+			EngineDenyTeleport.class,
 			EngineExploit.class,
 			EngineFlagEndergrief.class,
 			EngineFlagExplosion.class,

src/com/massivecraft/factions/engine/EngineDenyTeleport.java

@@ -0,0 +1,130 @@
+package com.massivecraft.factions.engine;
+
+import com.massivecraft.factions.Rel;
+import com.massivecraft.factions.entity.BoardColl;
+import com.massivecraft.factions.entity.Faction;
+import com.massivecraft.factions.entity.MConf;
+import com.massivecraft.factions.entity.MPlayer;
+import com.massivecraft.massivecore.Couple;
+import com.massivecraft.massivecore.Engine;
+import com.massivecraft.massivecore.mixin.MixinMessage;
+import com.massivecraft.massivecore.ps.PS;
+import com.massivecraft.massivecore.util.MUtil;
+import com.massivecraft.massivecore.util.Txt;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.player.PlayerTeleportEvent;
+import org.bukkit.event.player.PlayerTeleportEvent.TeleportCause;
+
+import java.util.List;
+import java.util.Map.Entry;
+
+public class EngineDenyTeleport extends Engine
+{
+	// -------------------------------------------- //
+	// INSTANCE & CONSTRUCT
+	// -------------------------------------------- //
+	
+	private static EngineDenyTeleport i = new EngineDenyTeleport();
+	public static EngineDenyTeleport get() { return i; }
+	
+	// -------------------------------------------- //
+	// CAN COMBAT DAMAGE HAPPEN
+	// -------------------------------------------- //
+
+	private enum TerritoryType
+	{
+		ENEMY,
+		WILDERNESS,
+		OWN,
+		OTHER
+	}
+	
+	@EventHandler(priority = EventPriority.LOW, ignoreCancelled = true)
+	public void canTeleportHappen(PlayerTeleportEvent event)
+	{
+		Entry<TeleportCause, TerritoryType> entry = shouldBeCancelled(event);
+		if (entry == null) return;
+
+		event.setCancelled(true);
+
+		TeleportCause cause = entry.getKey();
+		TerritoryType deny = entry.getValue();
+
+		String teleportDesc = Txt.getNicedEnum(cause);
+		String denyDesc = "";
+		if (deny == TerritoryType.ENEMY) denyDesc = "enemy";
+		if (deny == TerritoryType.WILDERNESS) denyDesc = "wilderness";
+		if (deny == TerritoryType.OWN) denyDesc = "your own";
+		if (deny == TerritoryType.OTHER) denyDesc = "other faction's";
+
+		Player player = event.getPlayer();
+		MixinMessage.get().msgOne(player, "<b>Teleportation with %s is not allowed in %s territory.", teleportDesc, denyDesc);
+	}
+
+	private Entry<TeleportCause, TerritoryType> shouldBeCancelled(PlayerTeleportEvent event)
+	{
+		Player player = event.getPlayer();
+		if (MUtil.isntPlayer(player)) return null;
+
+		MPlayer mplayer = MPlayer.get(player);
+
+		PS from = PS.valueOf(event.getFrom());
+		PS to = PS.valueOf(event.getTo());
+
+		TerritoryType typeFrom = getTerritoryType(mplayer, from);
+		TerritoryType typeTo = getTerritoryType(mplayer, to);
+		List<TerritoryType> types = MUtil.list(typeFrom, typeTo);
+
+		TeleportCause cause = event.getCause();
+		MConf mconf = MConf.get();
+
+		if (cause == TeleportCause.CHORUS_FRUIT)
+		{
+			if (!mconf.allowChorusFruitInEnemyTerritory && types.contains(TerritoryType.ENEMY))
+				return Couple.valueOf(cause, TerritoryType.ENEMY);
+
+			if (!mconf.allowChorusFruitInWildernessTerritory && types.contains(TerritoryType.WILDERNESS))
+				return Couple.valueOf(cause, TerritoryType.WILDERNESS);
+
+			if (!mconf.allowChorusFruitInOwnTerritory && types.contains(TerritoryType.OWN))
+				return Couple.valueOf(cause, TerritoryType.OWN);
+
+			if (!mconf.allowChorusFruitInOtherTerritory && types.contains(TerritoryType.OTHER))
+				return Couple.valueOf(cause, TerritoryType.OTHER);
+		}
+		else if (cause == TeleportCause.ENDER_PEARL)
+		{
+			if (!mconf.allowEnderPearlInEnemyTerritory && types.contains(TerritoryType.ENEMY))
+				return Couple.valueOf(cause, TerritoryType.ENEMY);
+
+			if (!mconf.allowEnderPearlInWildernessTerritory && types.contains(TerritoryType.WILDERNESS))
+				return Couple.valueOf(cause, TerritoryType.WILDERNESS);
+
+			if (!mconf.allowEnderPearlInOwnTerritory && types.contains(TerritoryType.OWN))
+				return Couple.valueOf(cause, TerritoryType.OWN);
+
+			if (!mconf.allowEnderPearlInOtherTerritory && types.contains(TerritoryType.OTHER))
+				return Couple.valueOf(cause, TerritoryType.OTHER);
+		}
+		else
+		{
+			// Don't cancel other kinds of teleports
+		}
+
+		return null;
+	}
+
+	private TerritoryType getTerritoryType(MPlayer mplayer, PS territory)
+	{
+		Faction territoryFaction = BoardColl.get().getFactionAt(territory);
+		Rel relation = territoryFaction.getRelationTo(mplayer);
+
+		if (territoryFaction.isNone()) return TerritoryType.WILDERNESS;
+		if (relation == Rel.ENEMY) return TerritoryType.ENEMY;
+		if (relation == Rel.FACTION) return TerritoryType.OWN;
+		return TerritoryType.OTHER;
+	}
+
+}

src/com/massivecraft/factions/entity/MConf.java

@@ -477,8 +477,22 @@ public class MConf extends Entity<MConf>
 	// -------------------------------------------- //
 	
 	public int unstuckSeconds = 30;
-	public int unstuckChunkRadius = 10; 
+	public int unstuckChunkRadius = 10;
-	
+
+	// -------------------------------------------- //
+	// ENDER PEARL AND CHORUS FRUIT
+	// -------------------------------------------- //
+
+	public boolean allowEnderPearlInEnemyTerritory = true;
+	public boolean allowEnderPearlInWildernessTerritory = true;
+	public boolean allowEnderPearlInOwnTerritory = true;
+	public boolean allowEnderPearlInOtherTerritory = true;
+
+	public boolean allowChorusFruitInEnemyTerritory = true;
+	public boolean allowChorusFruitInWildernessTerritory = true;
+	public boolean allowChorusFruitInOwnTerritory = true;
+	public boolean allowChorusFruitInOtherTerritory = true;
+
 	// -------------------------------------------- //
 	// LOGGING
 	// -------------------------------------------- //