Add GameMode flag

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

@@ -220,6 +220,7 @@ public static class PlayerFlagState {
         public Boolean lastExitAllowed = null;
         public Boolean notifiedForLeave = false;
         public Boolean notifiedForEnter = false;
+        public GameMode lastGameMode;
         public World lastWorld;
         public int lastBlockX;
         public int lastBlockY;

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

@@ -25,6 +25,7 @@
 import com.sk89q.worldedit.blocks.BlockID;
 import com.sk89q.worldedit.blocks.ItemID;
 import org.bukkit.ChatColor;
+import org.bukkit.GameMode;
 import org.bukkit.Location;
 import org.bukkit.World;
 import org.bukkit.block.Block;
@@ -42,6 +43,7 @@
 import org.bukkit.event.player.PlayerChatEvent;
 import org.bukkit.event.player.PlayerCommandPreprocessEvent;
 import org.bukkit.event.player.PlayerDropItemEvent;
+import org.bukkit.event.player.PlayerGameModeChangeEvent;
 import org.bukkit.event.player.PlayerInteractEvent;
 import org.bukkit.event.player.PlayerItemHeldEvent;
 import org.bukkit.event.player.PlayerJoinEvent;
@@ -159,6 +161,7 @@ public void onPlayerMove(PlayerMoveEvent event) {
                     String farewell = set.getFlag(DefaultFlag.FAREWELL_MESSAGE);//, localPlayer);
                     Boolean notifyEnter = set.getFlag(DefaultFlag.NOTIFY_ENTER);//, localPlayer);
                     Boolean notifyLeave = set.getFlag(DefaultFlag.NOTIFY_LEAVE);//, localPlayer);
+                    GameMode gameMode = set.getFlag(DefaultFlag.GAME_MODE);
 
                     if (state.lastFarewell != null && (farewell == null
                             || !state.lastFarewell.equals(farewell))) {
@@ -199,6 +202,15 @@ public void onPlayerMove(PlayerMoveEvent event) {
                                 + regionList);
                     }
 
+                    if (gameMode != null && player.getGameMode() != gameMode) {
+                        player.setGameMode(gameMode);
+                    } else {
+                        if (state.lastGameMode != null) {
+                            player.setGameMode(state.lastGameMode);
+                            state.lastGameMode = null;
+                        }
+                    }
+
                     state.lastGreeting = greeting;
                     state.lastFarewell = farewell;
                     state.notifiedForEnter = notifyEnter;
@@ -213,6 +225,21 @@ public void onPlayerMove(PlayerMoveEvent event) {
         }
 	}
 
+    @EventHandler
+    public void onPlayerGameModeChange(PlayerGameModeChangeEvent event) {
+        Player player = event.getPlayer();
+        WorldConfiguration wcfg = plugin.getGlobalStateManager().get(player.getWorld());
+        if (wcfg.useRegions) {
+            GameMode gameMode = plugin.getGlobalRegionManager().get(player.getWorld())
+                    .getApplicableRegions(player.getLocation()).getFlag(DefaultFlag.GAME_MODE);
+            if (gameMode != null && event.getNewGameMode() != gameMode) {
+                event.setCancelled(true);
+                player.sendMessage(ChatColor.RED + "Your game mode is locked to "
+                        + gameMode + "in this region!");
+            }
+        }
+    }
+
     @EventHandler
     public void onPlayerJoin(PlayerJoinEvent event) {
         Player player = event.getPlayer();

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

@@ -19,6 +19,7 @@
 
 package com.sk89q.worldguard.protection.flags;
 
+import org.bukkit.GameMode;
 import org.bukkit.entity.EntityType;
 
 /**
@@ -70,6 +71,7 @@ public final class DefaultFlag {
     public static final BooleanFlag NOTIFY_ENTER = new BooleanFlag("notify-enter", RegionGroup.ALL);
     public static final BooleanFlag NOTIFY_LEAVE = new BooleanFlag("notify-leave", RegionGroup.ALL);
     public static final SetFlag<EntityType> DENY_SPAWN = new SetFlag<EntityType>("deny-spawn", RegionGroup.ALL, new EntityTypeFlag(null));
+    public static final EnumFlag<GameMode> GAME_MODE = new EnumFlag<GameMode>("game-mode", GameMode.class, RegionGroup.ALL);
     public static final IntegerFlag HEAL_DELAY = new IntegerFlag("heal-delay", RegionGroup.ALL);
     public static final IntegerFlag HEAL_AMOUNT = new IntegerFlag("heal-amount", RegionGroup.ALL);
     public static final IntegerFlag MIN_HEAL = new IntegerFlag("heal-min-health", RegionGroup.ALL);
@@ -94,7 +96,7 @@ public final class DefaultFlag {
         EXIT, ENTRY, LIGHTNING, ENTITY_PAINTING_DESTROY,
         HEAL_AMOUNT, HEAL_DELAY, MIN_HEAL, MAX_HEAL,
         FEED_DELAY, FEED_AMOUNT, MIN_FOOD, MAX_FOOD,
-        SNOW_FALL, SNOW_MELT, ICE_FORM, ICE_MELT,
+        SNOW_FALL, SNOW_MELT, ICE_FORM, ICE_MELT, GAME_MODE,
         MUSHROOMS, LEAF_DECAY, GRASS_SPREAD, SEND_CHAT, RECEIVE_CHAT,
         FIRE_SPREAD, LAVA_FIRE, LAVA_FLOW, WATER_FLOW,
         TELE_LOC, SPAWN_LOC, POTION_SPLASH,