Added mob spawner support; added 'info' tool.

src/CuboidClipboard.java

@@ -389,18 +389,24 @@ public class CuboidClipboard {
                     BlockVector pt = new BlockVector(x, y, z);
                     BaseBlock block;
 
-                    if (blocks[index] == 63 || blocks[index] == 68) {
+                    if (blocks[index] == 63 || blocks[index] == 68) { // Signs
                         block = new SignBlock(blocks[index], blockData[index]);
                         if (tileEntitiesMap.containsKey(pt)) {
                             ((TileEntityBlock)block).fromTileEntityNBT(
                                     tileEntitiesMap.get(pt));
                         }
-                    } else if(blocks[index] == 54) {
+                    } else if(blocks[index] == 54) { // Chest
                         block = new ChestBlock();
                         if (tileEntitiesMap.containsKey(pt)) {
                             ((TileEntityBlock)block).fromTileEntityNBT(
                                     tileEntitiesMap.get(pt));
                         }
+                    } else if(blocks[index] == 52) { // Mob spawner
+                        block = new MobSpawnerBlock();
+                        if (tileEntitiesMap.containsKey(pt)) {
+                            ((TileEntityBlock)block).fromTileEntityNBT(
+                                    tileEntitiesMap.get(pt));
+                        }
                     } else {
                         block = new BaseBlock(blocks[index], blockData[index]);
                     }

src/EditSession.java

@@ -94,7 +94,7 @@ public class EditSession {
      * @param blockType
      * @return Whether the block changed
      */
-    private boolean rawSetBlock(Vector pt, BaseBlock block) {
+    private static boolean rawSetBlock(Vector pt, BaseBlock block) {
         int y = pt.getBlockY();
         if (y < 0 || y > 127) {
             return false;
@@ -132,6 +132,10 @@ public class EditSession {
                         ServerInterface.setChestSlot(pt, i, blankItem, 0);
                     }
                 }
+            // Mob spawners
+            } else if (block instanceof MobSpawnerBlock) {
+                MobSpawnerBlock mobSpawnerblock = (MobSpawnerBlock)block;
+                ServerInterface.setMobSpawnerType(pt, mobSpawnerblock.getMobType());
             }
         }
         
@@ -229,7 +233,7 @@ public class EditSession {
      * @param pt
      * @return BaseBlock
      */
-    public BaseBlock rawGetBlock(Vector pt) {
+    public static BaseBlock rawGetBlock(Vector pt) {
         int type = ServerInterface.getBlockType(pt);
         int data = ServerInterface.getBlockData(pt);
 
@@ -241,6 +245,9 @@ public class EditSession {
         } else if (type == 54) {
             Map<Byte,Countable<BaseItem>> items = ServerInterface.getChestContents(pt);
             return new ChestBlock(data, items);
+        // Mob spawner
+        } else if (type == 52) {
+            return new MobSpawnerBlock(data, ServerInterface.getMobSpawnerType(pt));
         } else {
             return new BaseBlock(type, data);
         }

src/ServerInterface.java

@@ -24,7 +24,7 @@ import java.util.logging.Level;
 import java.util.Map;
 import java.util.HashMap;
 import java.util.Random;
-import java.lang.reflect.Constructor;
+import java.lang.reflect.*;
 import sun.reflect.ReflectionFactory;
 
 /**
@@ -204,6 +204,46 @@ public class ServerInterface {
         return true;
     }
 
+    /**
+     * Checks if a mob type is valid.
+     * 
+     * @param type
+     * @return
+     */
+    public static boolean isValidMobType(String type) {
+        return Mob.isValid(type);
+    }
+
+    /**
+     * Set mob spawner mob type.
+     *
+     * @param pt
+     * @param mobType
+     */
+    public static void setMobSpawnerType(Vector pt, String mobType) {
+        Block block = etc.getServer().getBlockAt(
+                pt.getBlockX(), pt.getBlockY(), pt.getBlockZ());
+        block.setSpawnData(mobType);
+    }
+
+    /**
+     * Get mob spawner mob type. May return an empty string.
+     *
+     * @param pt
+     * @param mobType
+     */
+    public static String getMobSpawnerType(Vector pt) {
+        ay o = etc.getMCServer().e.k(
+                pt.getBlockX(), pt.getBlockY(), pt.getBlockZ());
+        
+        if (o != null && o instanceof cf) {
+            String type = ((cf)o).f;
+            return type != null ? type : "";
+        }
+
+        return "";
+    }
+
     /**
      * Generate a tree at a location.
      * 

src/WorldEditListener.java

@@ -254,7 +254,13 @@ public class WorldEditListener extends PluginListener {
                 text[2] = args0.length > 3 ? args0[3] : "";
                 text[3] = args0.length > 4 ? args0[4] : "";
                 return new SignBlock(blockType.getID(), data, text);
+            } else if (blockType == BlockType.MOB_SPAWNER) {
+                if (!ServerInterface.isValidMobType(args0[1])) {
+                    throw new InvalidItemException(arg, "Unknown mob type '" + args0[1] + "'");
+                }
+                return new MobSpawnerBlock(data, args0[1]);
             }
+
             return new BaseBlock(blockType.getID(), data);
         }
 
@@ -623,6 +629,9 @@ public class WorldEditListener extends PluginListener {
             } else if (split[1].equalsIgnoreCase("tree")) {
                 session.setTool(WorldEditSession.Tool.TREE);
                 player.print("Tree planting tool equipped. +5 XP");
+            } else if (split[1].equalsIgnoreCase("info")) {
+                session.setTool(WorldEditSession.Tool.INFO);
+                player.print("Block information tool equipped.");
             } else {
                 player.printError("Unknown tool.");
             }
@@ -1677,6 +1686,25 @@ public class WorldEditListener extends PluginListener {
                 session.remember(editSession);
             }
 
+            return true;
+        } else if (player.isHoldingPickAxe()
+                && session.getTool() == WorldEditSession.Tool.INFO) {
+            Vector pos = Vector.toBlockPoint(blockClicked.getX(),
+                                             blockClicked.getY(),
+                                             blockClicked.getZ());
+
+            BaseBlock block = EditSession.rawGetBlock(pos);
+
+            player.printRaw(Colors.LightPurple + "@" + pos + ": " + Colors.Yellow
+                    + "Type: " + block.getID() + Colors.LightGray + " ("
+                    + BlockType.fromID(block.getID()).getName() + ") "
+                    + Colors.White
+                    + "[" + block.getData() + "]");
+
+            if (block instanceof MobSpawnerBlock) {
+                player.printRaw(Colors.Yellow + "Mob Type: " + ((MobSpawnerBlock)block).getMobType());
+            }
+
             return true;
         }
 
@@ -1881,6 +1909,8 @@ public class WorldEditListener extends PluginListener {
             ply.sendMessage(Colors.Rose + "The edit region has not been fully defined.");
         } catch (UnknownItemException e3) {
             ply.sendMessage(Colors.Rose + "Block name '" + e3.getID() + "' was not recognized.");
+        } catch (InvalidItemException e4) {
+            ply.sendMessage(Colors.Rose + e4.getMessage());
         } catch (DisallowedItemException e4) {
             ply.sendMessage(Colors.Rose + "Block '" + e4.getID() + "' not allowed (see WorldEdit configuration).");
         } catch (MaxChangedBlocksException e5) {

src/WorldEditPlayer.java

@@ -458,6 +458,15 @@ public class WorldEditPlayer {
         return false;
     }
 
+    /**
+     * Print a message.
+     *
+     * @param msg
+     */
+    public void printRaw(String msg) {
+        player.sendMessage(msg);
+    }
+
     /**
      * Print a WorldEdit message.
      *

src/WorldEditSession.java

@@ -37,10 +37,11 @@ public class WorldEditSession {
         SAME_TYPE_AREA
     };
     /**
-     * List of
+     * List of tools.
      */
     public static enum Tool {
         NONE,
+        INFO,
         TREE,
     }
     

src/com/sk89q/worldedit/DisallowedItemException.java

@@ -25,11 +25,16 @@ package com.sk89q.worldedit;
  */
 public class DisallowedItemException extends WorldEditException {
     private String type;
-    
+
     public DisallowedItemException(String type) {
         this.type = type;
     }
 
+    public DisallowedItemException(String type, String message) {
+        super(message);
+        this.type = type;
+    }
+
     public String getID() {
         return type;
     }

src/com/sk89q/worldedit/InvalidItemException.java

@@ -0,0 +1,30 @@
+// $Id$
+/*
+ * WorldEdit
+ * 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.worldedit;
+
+/**
+ *
+ * @author sk89q
+ */
+public class InvalidItemException extends DisallowedItemException {
+    public InvalidItemException(String type, String message) {
+        super(type, message);
+    }
+}

src/com/sk89q/worldedit/blocks/MobSpawnerBlock.java

@@ -0,0 +1,153 @@
+// $Id$
+/*
+ * WorldEdit
+ * 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.worldedit.blocks;
+
+import com.sk89q.worldedit.*;
+import com.sk89q.worldedit.data.*;
+import java.util.Map;
+import java.util.HashMap;
+import java.util.List;
+import java.util.ArrayList;
+import org.jnbt.*;
+
+/**
+ * Represents chests.
+ *
+ * @author sk89q
+ */
+public class MobSpawnerBlock extends BaseBlock implements TileEntityBlock {
+    /**
+     * Store mob spawn type.
+     */
+    private String mobType;
+    /**
+     * Delay until next spawn.
+     */
+    private short delay;
+
+    /**
+     * Construct the mob spawner block.
+     *
+     */
+    public MobSpawnerBlock() {
+        super(52);
+        this.mobType = "Pig";
+    }
+
+    /**
+     * Construct the mob spawner block.
+     *
+     * @param items
+     */
+    public MobSpawnerBlock(String mobType) {
+        super(52);
+        this.mobType = mobType;
+    }
+
+    /**
+     * Construct the mob spawner block.
+     *
+     * @param data
+     * @param items
+     */
+    public MobSpawnerBlock(int data, String mobType) {
+        super(52, data);
+        this.mobType = mobType;
+    }
+
+    /**
+     * Get the mob type.
+     *
+     * @return
+     */
+    public String getMobType() {
+        return mobType;
+    }
+
+    /**
+     * Set the mob type.
+     *
+     * @return
+     */
+    public void setMobType(String mobType) {
+        this.mobType = mobType;
+    }
+
+    /**
+     * @return the delay
+     */
+    public short getDelay() {
+        return delay;
+    }
+
+    /**
+     * @param delay the delay to set
+     */
+    public void setDelay(short delay) {
+        this.delay = delay;
+    }
+
+    /**
+     * Get the tile entity ID.
+     *
+     * @return
+     */
+    public String getTileEntityID() {
+        return "MobSpawner";
+    }
+
+    /**
+     * Store additional tile entity data. Returns true if the data is used.
+     *
+     * @return map of values
+     * @throws DataException
+     */
+    public Map<String,Tag> toTileEntityNBT()
+            throws DataException {
+        Map<String,Tag> values = new HashMap<String,Tag>();
+        values.put("EntityId", new StringTag("EntityId", mobType));
+        values.put("Delay", new ShortTag("Delay", (short)0));
+        return values;
+    }
+
+    /**
+     * Get additional information from the title entity data.
+     *
+     * @param values
+     * @throws DataException
+     */
+    public void fromTileEntityNBT(Map<String,Tag> values)
+            throws DataException  {
+        if (values == null) {
+            return;
+        }
+
+        Tag t = values.get("id");
+        if (!(t instanceof StringTag) || !((StringTag)t).getValue().equals("MobSpawner")) {
+            throw new DataException("'MobSpawner' tile entity expected");
+        }
+
+        StringTag mobTypeTag = (StringTag)Chunk.getChildTag(values, "EntityId", StringTag.class);
+        ShortTag delayTag = (ShortTag)Chunk.getChildTag(values, "Delay", ShortTag.class);
+
+        this.mobType = mobTypeTag.getValue();
+        this.delay = delayTag.getValue();
+    }
+}

src/com/sk89q/worldedit/data/Chunk.java

@@ -210,6 +210,17 @@ public class Chunk {
                 ((TileEntityBlock)block).fromTileEntityNBT(tileEntity);
             }
 
+            return block;
+        // Mob spawners
+        } else if (id == 52) {
+            MobSpawnerBlock block = new MobSpawnerBlock();
+
+            Map<String,Tag> tileEntity = getBlockTileEntity(pos);
+
+            if (tileEntity != null) {
+                ((TileEntityBlock)block).fromTileEntityNBT(tileEntity);
+            }
+
             return block;
         } else {
             return new BaseBlock(id, data);