Added region invincibility flag.

src/main/java/com/sk89q/worldguard/bukkit/FlagStateManager.java

@@ -164,6 +164,13 @@ public static class PlayerFlagState {
         public int lastBlockX;
         public int lastBlockY;
         public int lastBlockZ;
+
+        /* Used to cache invincibility status */
+        public World lastInvincibleWorld;
+        public int lastInvincibleX;
+        public int lastInvincibleY;
+        public int lastInvincibleZ;
+        public boolean wasInvincible;
     }
 
 }

src/main/java/com/sk89q/worldguard/bukkit/RegionQueryUtil.java

@@ -0,0 +1,67 @@
+// $Id$
+/*
+ * WorldGuard
+ * Copyright (C) 2010 sk89q <http://www.sk89q.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package com.sk89q.worldguard.bukkit;
+
+import com.sk89q.worldedit.Vector;
+import com.sk89q.worldguard.LocalPlayer;
+import com.sk89q.worldguard.protection.ApplicableRegionSet;
+import com.sk89q.worldguard.protection.flags.DefaultFlag;
+import com.sk89q.worldguard.protection.managers.RegionManager;
+import org.bukkit.Location;
+import org.bukkit.World;
+import org.bukkit.entity.Player;
+
+public class RegionQueryUtil {
+
+    public static boolean isInvincible(WorldGuardPlugin plugin, Player player) {
+        return isInvincible(plugin, player, null);
+    }
+
+    public static boolean isInvincible(WorldGuardPlugin plugin, Player player,
+                                       ApplicableRegionSet set) {
+        Location loc = player.getLocation();
+        World world = player.getWorld();
+        
+        FlagStateManager.PlayerFlagState state = plugin.getFlagStateManager().getState(player);
+
+        if (state.lastInvincibleWorld == null ||
+                !state.lastInvincibleWorld.equals(world) ||
+                state.lastInvincibleX != loc.getBlockX() ||
+                state.lastInvincibleY != loc.getBlockY() ||
+                state.lastInvincibleZ != loc.getBlockZ()) {
+            state.lastInvincibleX = loc.getBlockX();
+            state.lastInvincibleY = loc.getBlockY();
+            state.lastInvincibleZ = loc.getBlockZ();
+            state.lastInvincibleWorld = world;
+
+            if (set == null) {
+                Vector vec = new Vector(state.lastInvincibleX,
+                        state.lastInvincibleY, state.lastInvincibleZ);
+                RegionManager mgr = plugin.getGlobalRegionManager().get(world);
+                set = mgr.getApplicableRegions(vec);
+            }
+
+            state.wasInvincible = set.allows(DefaultFlag.INVINCIBILITY);
+        }
+
+        return state.wasInvincible;
+    }
+
+}

src/main/java/com/sk89q/worldguard/bukkit/WorldGuardEntityListener.java

@@ -140,7 +140,8 @@ private void onEntityDamageByBlock(EntityDamageByBlockEvent event) {
         } else if (defender instanceof Player) {
             Player player = (Player) defender;
 
-            if (cfg.hasGodMode(player)) {
+            if (cfg.hasGodMode(player)
+                    || (wcfg.useRegions && RegionQueryUtil.isInvincible(plugin, player))) {
                 event.setCancelled(true);
                 return;
             }
@@ -209,7 +210,8 @@ private void onEntityDamageByEntity(EntityDamageByEntityEvent event) {
             ConfigurationManager cfg = plugin.getGlobalStateManager();
             WorldConfiguration wcfg = cfg.get(player.getWorld());
             
-            if (cfg.hasGodMode(player)) {
+            if (cfg.hasGodMode(player)
+                    || (wcfg.useRegions && RegionQueryUtil.isInvincible(plugin, player))) {
                 event.setCancelled(true);
                 return;
             }
@@ -291,7 +293,7 @@ private void onEntityDamageByProjectile(EntityDamageByProjectileEvent event) {
             ConfigurationManager cfg = plugin.getGlobalStateManager();
             WorldConfiguration wcfg = cfg.get(player.getWorld());
             
-            if (cfg.hasGodMode(player)) {
+            if (cfg.hasGodMode(player) || (wcfg.useRegions && RegionQueryUtil.isInvincible(plugin, player))) {
                 event.setCancelled(true);
                 return;
             }
@@ -361,7 +363,8 @@ public void onEntityDamage(EntityDamageEvent event) {
         } else if (defender instanceof Player) {
             Player player = (Player) defender;
 
-            if (cfg.hasGodMode(player)) {
+            if (cfg.hasGodMode(player)
+                    || (wcfg.useRegions && RegionQueryUtil.isInvincible(plugin, player))) {
                 event.setCancelled(true);
                 player.setFireTicks(0);
                 return;
@@ -423,11 +426,12 @@ public void onEntityCombust(EntityCombustEvent event) {
         Entity entity = event.getEntity();
 
         ConfigurationManager cfg = plugin.getGlobalStateManager();
+        WorldConfiguration wcfg = cfg.get(entity.getWorld());
 
         if (entity instanceof Player) {
             Player player = (Player) entity;
 
-            if (cfg.hasGodMode(player)) {
+            if (cfg.hasGodMode(player) || (wcfg.useRegions && RegionQueryUtil.isInvincible(plugin, player))) {
                 event.setCancelled(true);
                 return;
             }

src/main/java/com/sk89q/worldguard/protection/flags/DefaultFlag.java

@@ -47,6 +47,7 @@ public final class DefaultFlag {
     public static final StateFlag PLACE_VEHICLE = new StateFlag("vehicle-place", false);
     public static final StateFlag SNOW_FALL = new StateFlag("snow-fall", true);
     public static final StateFlag LEAF_DECAY = new StateFlag("leaf-decay", true);
+    public static final StateFlag INVINCIBILITY = new StateFlag("invincible", false);
     public static final StateFlag ENTRY = new StateFlag("entry", true);
     public static final RegionGroupFlag ENTRY_PERM = new RegionGroupFlag("entry-group", RegionGroupFlag.RegionGroup.NON_MEMBERS);
     public static final StateFlag EXIT = new StateFlag("exit", true);
@@ -73,7 +74,8 @@ public final class DefaultFlag {
         USE, PLACE_VEHICLE, GREET_MESSAGE, FAREWELL_MESSAGE, NOTIFY_ENTER,
         NOTIFY_LEAVE, DENY_SPAWN, HEAL_DELAY, HEAL_AMOUNT, TELE_LOC,
         TELE_PERM, SPAWN_LOC, SPAWN_PERM, BUYABLE, PRICE, SNOW_FALL, LEAF_DECAY,
-        GHAST_FIREBALL, BLOCKED_CMDS, ALLOWED_CMDS, ENTRY, ENTRY_PERM, EXIT, EXIT_PERM
+        GHAST_FIREBALL, BLOCKED_CMDS, ALLOWED_CMDS, ENTRY, ENTRY_PERM, EXIT, EXIT_PERM,
+        INVINCIBILITY
     };
 
     static {