Add a -f (friendly) flag to butcher

src/main/java/com/sk89q/worldedit/LocalWorld.java

@@ -40,6 +40,7 @@ public abstract class LocalWorld {
         public static final int NPCS = 1 << 1;
         public static final int ANIMALS = 1 << 2;
         public static final int GOLEMS = 1 << 3;
+        public static final int FRIENDLY = PETS | NPCS | ANIMALS | GOLEMS;
         public static final int WITH_LIGHTNING = 1 << 20;
     }
 

src/main/java/com/sk89q/worldedit/commands/UtilityCommands.java

@@ -346,7 +346,7 @@ public class UtilityCommands {
     @Command(
         aliases = { "butcher" },
         usage = "[radius]",
-        flags = "plang",
+        flags = "plangf",
         desc = "Kill all or nearby mobs",
         help =
             "Kills nearby mobs, based on radius, if none is given uses default in configuration.\n" +
@@ -355,6 +355,7 @@ public class UtilityCommands {
             "  -n also kills NPCs.\n" +
             "  -g also kills Golems.\n" +
             "  -a also kills animals.\n" +
+            "  -f compounds all previous flags.\n" +
             "  -l strikes lightning on each killed mob.",
         min = 0,
         max = 1
@@ -376,38 +377,47 @@ public class UtilityCommands {
         	radius = config.butcherDefaultRadius;
         }
 
-        int flags = 0;
-        if (player.hasPermission("worldedit.butcher.pets") && (args.hasFlag('p'))) {
-            flags |= KillFlags.PETS;
-        }
-       
-        if (player.hasPermission("worldedit.butcher.npcs") && (args.hasFlag('n'))) {
-            flags |= KillFlags.NPCS;
-        }
-
-        if (player.hasPermission("worldedit.butcher.golems") && (args.hasFlag('g'))) {
-            flags |= KillFlags.GOLEMS;
-        }
-        
-        if (player.hasPermission("worldedit.butcher.animals") && (args.hasFlag('a'))) {
-            flags |= KillFlags.ANIMALS;
-        }
-        
-        if (args.hasFlag('l') && player.hasPermission("worldedit.butcher.lightning")) flags |= KillFlags.WITH_LIGHTNING;
+        FlagContainer flags = new FlagContainer(player);
+        flags.or(KillFlags.FRIENDLY      , args.hasFlag('f'));
+        flags.or(KillFlags.PETS          , args.hasFlag('p'), "worldedit.butcher.pets");
+        flags.or(KillFlags.NPCS          , args.hasFlag('n'), "worldedit.butcher.npcs");
+        flags.or(KillFlags.GOLEMS        , args.hasFlag('g'), "worldedit.butcher.golems");
+        flags.or(KillFlags.ANIMALS       , args.hasFlag('a'), "worldedit.butcher.animals");
+        flags.or(KillFlags.WITH_LIGHTNING, args.hasFlag('l'), "worldedit.butcher.lightning");
 
         int killed;
         if (player.isPlayer()) {
-            killed = player.getWorld().killMobs(session.getPlacementPosition(player), radius, flags);
+            killed = player.getWorld().killMobs(session.getPlacementPosition(player), radius, flags.flags);
         } else {
             killed = 0;
             for (LocalWorld world : we.getServer().getWorlds()) {
-                killed += world.killMobs(new Vector(), radius, flags);
+                killed += world.killMobs(new Vector(), radius, flags.flags);
             }
         }
 
         player.print("Killed " + killed + " mobs.");
     }
 
+    public class FlagContainer {
+        private final LocalPlayer player;
+        public int flags = 0;
+        public FlagContainer(LocalPlayer player) {
+            this.player = player;
+        }
+
+        public void or(int flag, boolean on) {
+            if (on) flags |= flag;
+        }
+
+        public void or(int flag, boolean on, String permission) {
+            or(flag, on);
+
+            if ((flags & flag) != 0 && !player.hasPermission(permission)) {
+                flags &= ~flag;
+            }
+        }
+    }
+
     @Command(
         aliases = { "remove", "rem", "rement" },
         usage = "<type> <radius>",