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SilkSpawners.java
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/*
Copyright (c) 2012, Mushroom Hostage
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the <organization> nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package me.exphc.SilkSpawners;
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.lang.reflect.Field;
import java.util.List;
import java.util.Map;
import java.util.SortedMap;
import java.util.TreeMap;
import java.util.concurrent.ConcurrentHashMap;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.bukkit.Bukkit;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.World;
import org.bukkit.block.Block;
import org.bukkit.block.BlockState;
import org.bukkit.block.CreatureSpawner;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.configuration.MemorySection;
import org.bukkit.craftbukkit.CraftWorld;
import org.bukkit.craftbukkit.block.CraftCreatureSpawner;
import org.bukkit.enchantments.Enchantment;
import org.bukkit.entity.EntityType;
import org.bukkit.entity.ExperienceOrb;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.Listener;
import org.bukkit.event.block.Action;
import org.bukkit.event.block.BlockBreakEvent;
import org.bukkit.event.block.BlockPlaceEvent;
import org.bukkit.event.inventory.InventoryClickEvent;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.event.player.PlayerItemHeldEvent;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.PlayerInventory;
import org.bukkit.inventory.ShapedRecipe;
import org.bukkit.plugin.Plugin;
import org.bukkit.plugin.java.JavaPlugin;
import org.getspout.spoutapi.player.SpoutPlayer;
import com.sk89q.worldguard.bukkit.WorldGuardPlugin;
class SilkSpawnersBlockListener implements Listener {
static Logger log = Logger.getLogger("Minecraft");
SilkSpawners plugin;
public SilkSpawnersBlockListener(SilkSpawners plugin) {
this.plugin = plugin;
Bukkit.getServer().getPluginManager().registerEvents(this, plugin);
}
public boolean hasSilkTouch(ItemStack tool) {
int minLevel = plugin.getConfig().getInt("minSilkTouchLevel", 1);
if (minLevel == 0) {
return true; // always have it
}
if (tool == null) {
return false; // no silk touch fists..
}
// This check isn't actually necessary, since containsEnchantment just checks level>0,
// but is kept here for clarity, and in case Bukkit allows level-0 enchantments like vanilla
if (!tool.containsEnchantment(Enchantment.SILK_TOUCH)) {
return false;
}
return tool.getEnchantmentLevel(Enchantment.SILK_TOUCH) >= minLevel;
}
/**
* To show a chat message that a player clicked on an mob spawner
* @param event
* @author Chris Churchwell (thedudeguy)
*/
@EventHandler
public void OnClickSpawner(InventoryClickEvent event) {
if (
plugin.getConfig().getBoolean("notifyOnClick") &&
event.getCurrentItem() != null &&
event.getCurrentItem().getType().equals(Material.MOB_SPAWNER) &&
event.getWhoClicked() instanceof Player &&
plugin.hasPermission((Player)event.getWhoClicked(), "silkspawners.info")
) {
if (
SilkSpawners.getStoredSpawnerItemEntityID(event.getCurrentItem()) == 0 &&
plugin.defaultEntityID == 0
) {
return ;
}
short entityID = SilkSpawners.getStoredSpawnerItemEntityID(event.getCurrentItem());
if (entityID == 0) entityID = plugin.defaultEntityID;
String spawnerName = plugin.getCreatureName(entityID);
if (
plugin.spoutEnabled &&
((SpoutPlayer)event.getWhoClicked()).isSpoutCraftEnabled()
) {
((SpoutPlayer)event.getWhoClicked()).sendNotification("Monster Spawner", spawnerName, Material.MOB_SPAWNER);
} else {
Player player = (Player)event.getWhoClicked();
player.sendMessage(" ");
player.sendMessage("-- Monster Spawner --");
player.sendMessage("-- Type: " + spawnerName);
}
}
}
/**
* To show a chat message that a player is holding a mob spawner and its type
* @param event
* @author Chris Churchwell (thedudeguy)
*/
@EventHandler
public void OnHoldSpawner(PlayerItemHeldEvent event) {
if (
plugin.getConfig().getBoolean("notifyOnHold") &&
plugin.hasPermission((Player)event.getPlayer(), "silkspawners.info") &&
event.getPlayer().getInventory().getItem(event.getNewSlot()) != null &&
event.getPlayer().getInventory().getItem(event.getNewSlot()).getType().equals(Material.MOB_SPAWNER)
) {
if (
SilkSpawners.getStoredSpawnerItemEntityID(event.getPlayer().getInventory().getItem(event.getNewSlot())) == 0 &&
plugin.defaultEntityID == 0
) {
return ;
}
short entityID = SilkSpawners.getStoredSpawnerItemEntityID(event.getPlayer().getInventory().getItem(event.getNewSlot()));
if (entityID == 0) entityID = plugin.defaultEntityID;
String spawnerName = plugin.getCreatureName(entityID);
if(
plugin.spoutEnabled &&
((SpoutPlayer)event.getPlayer()).isSpoutCraftEnabled()
) {
((SpoutPlayer)event.getPlayer()).sendNotification("Monster Spawner", spawnerName, Material.MOB_SPAWNER);
} else {
event.getPlayer().sendMessage(" ");
event.getPlayer().sendMessage("-- Monster Spawner --");
event.getPlayer().sendMessage("-- Type: " + spawnerName);
}
}
}
@EventHandler(priority = EventPriority.MONITOR, ignoreCancelled=true)
public void onBlockBreak(final BlockBreakEvent event) {
Block block = event.getBlock();
Player player = event.getPlayer();
// To prevent silk touch exploit by breaking blocks holding spawner (since abuses Silk Touch enchantment), cancel event
ItemStack heldItem = player.getItemInHand();
if (heldItem != null && heldItem.getType() == Material.MOB_SPAWNER && plugin.getConfig().getBoolean("denyBreakHoldingSpawner", true)) {
event.setCancelled(true);
return;
}
if (block.getType() != Material.MOB_SPAWNER) {
return;
}
if (!plugin.canBuildHere(player, block.getLocation())) {
return;
}
short entityID = plugin.getSpawnerEntityID(block);
// mcMMO sends its own FakeBlockBreakEvent with super breaker ability, causing us to think
// the spawner is broken when it isn't, allowing for duping: http://www.youtube.com/watch?v=GGlyZmph8NM
// Ignore these events if configured
if (event.getClass() != BlockBreakEvent.class && plugin.getConfig().getBoolean("ignoreFakeBreakEvents", true)) {
return;
}
plugin.informPlayer(player, plugin.getCreatureName(entityID)+" spawner broken");
// If using silk touch, drop spawner itself
ItemStack tool = player.getItemInHand();
boolean silkTouch = hasSilkTouch(tool);
ItemStack dropItem;
World world = player.getWorld();
if (silkTouch && plugin.hasPermission(player, "silkspawners.silkdrop")) {
// Drop spawner
dropItem = SilkSpawners.newSpawnerItem(entityID);
world.dropItemNaturally(block.getLocation(), dropItem);
return;
}
if (plugin.hasPermission(player, "silkspawners.destroydrop")) {
if (plugin.getConfig().getBoolean("destroyDropEgg")) {
// Drop egg
world.dropItemNaturally(block.getLocation(), SilkSpawners.newEggItem(entityID));
}
int addXP = plugin.getConfig().getInt("destroyDropXP");
if (addXP != 0) {
ExperienceOrb orb = world.spawn(block.getLocation(), ExperienceOrb.class);
orb.setExperience(addXP);
}
int dropBars = plugin.getConfig().getInt("destroyDropBars");
if (dropBars != 0) {
world.dropItem(block.getLocation(), new ItemStack(Material.IRON_FENCE, dropBars));
}
}
}
@EventHandler(priority = EventPriority.MONITOR, ignoreCancelled=true)
public void onBlockPlace(final BlockPlaceEvent event) {
Block blockPlaced = event.getBlockPlaced();
if (blockPlaced.getType() != Material.MOB_SPAWNER) {
return;
}
Player player = event.getPlayer();
if (!plugin.canBuildHere(player, blockPlaced.getLocation())) {
return;
}
// https://bukkit.atlassian.net/browse/BUKKIT-596 - BlockPlaceEvent getItemInHand() loses enchantments
// so, have to get item from player instead
//ItemStack item = event.getItemInHand();
ItemStack item = player.getItemInHand();
// Get data from item
short entityID = SilkSpawners.getStoredSpawnerItemEntityID(item);
if (entityID == 0) {
plugin.informPlayer(player, "Placing default spawner");
entityID = plugin.defaultEntityID;
if (entityID == 0) {
// "default default"; defer to Minecraft
return;
}
}
plugin.informPlayer(player, plugin.getCreatureName(entityID)+" spawner placed");
// Bukkit 1.1-R3 regressed from 1.1-R1, ignores block state update on onBlockPlace
// TODO: file or find bug about this, get it fixed so can remove this lame workaround
Bukkit.getScheduler().scheduleSyncDelayedTask(plugin, new SilkSpawnersSetCreatureTask(entityID, blockPlaced, plugin, player), 0);
}
@EventHandler(priority = EventPriority.MONITOR, ignoreCancelled=true)
public void onPlayerInteract(PlayerInteractEvent event) {
ItemStack item = event.getItem();
Block block = event.getClickedBlock();
Player player = event.getPlayer();
if (item != null && item.getType() == SilkSpawners.SPAWN_EGG) {
short entityID = item.getDurability();
// Clicked spawner with monster egg to change type
if (event.getAction() == Action.LEFT_CLICK_BLOCK &&
block != null && block.getType() == Material.MOB_SPAWNER) {
if (!plugin.canBuildHere(player, block.getLocation())) {
return;
}
if (!plugin.hasPermission(player, "silkspawners.changetypewithegg")) {
player.sendMessage("You do not have permission to change spawners with spawn eggs");
return;
}
plugin.setSpawnerType(block, entityID, player);
// Consume egg
if (plugin.getConfig().getBoolean("consumeEgg", true)) {
PlayerInventory inventory = player.getInventory();
int slot = inventory.getHeldItemSlot();
ItemStack eggs = inventory.getItem(slot);
if (eggs.getAmount() == 1) {
// Common case.. one egg, used up
inventory.clear(slot);
} else {
// Cannot legitimately get >1 egg per slot (in 1.1, but supposedly 1.2 will support it), but should support it regardless
inventory.setItem(slot, SilkSpawners.newEggItem(entityID, eggs.getAmount() - 1));
}
}
} else if (event.getAction() == Action.RIGHT_CLICK_BLOCK) {
// Using spawn egg
if (plugin.getConfig().getBoolean("spawnEggOverride", false)) { // disabled by default, since it is dangerous
String mobID = plugin.eid2MobID.get(entityID);
boolean allowed = plugin.getConfig().getBoolean("spawnEggOverrideSpawnDefault", true);
if (mobID != null) {
allowed = plugin.getConfig().getBoolean("creatures."+mobID+".enableSpawnEggOverrideAllowSpawn", allowed);
}
if (!allowed) {
player.sendMessage("Spawning "+entityID+" denied");
event.setCancelled(true);
return;
}
// CB blacklists dragon (63) and 48,49 for some reason.. and it also prevents spawning of entities without
// its CB EntityType wrapper class, or entities that aren't living. Proof:
// https://github.com/Bukkit/CraftBukkit/blob/master/src/main/java/net/minecraft/server/ItemMonsterEgg.java
// if (world.isStatic || itemstack.getData() == 48 || itemstack.getData() == 49 || itemstack.getData() == 63) { // CraftBukkit
/*
Entity entity = EntityTypes.a(i, world);
if (entity != null && entity instanceof EntityLiving) { // CraftBukkit
entity.setPositionRotation(d0, d1, d2, world.random.nextFloat() * 360.0F, 0.0F);
world.addEntity(entity, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.SPAWNER_EGG); // CraftBukkit
((EntityLiving) entity).az();
}
*/
// Its mob spawner also tries to detect "bad" entities", but is less stringent, in that it can spawn dragons!
// https://github.com/Bukkit/CraftBukkit/blob/master/src/main/java/net/minecraft/server/TileEntityMobSpawner.java
/*
Entity mob = EntityTypes.createEntityByName(this.mobName, this.world);
if (!(mob instanceof EntityLiving)) {
mobName = "Pig";
return;
}
EntityLiving entityliving = (EntityLiving) ((EntityLiving) mob);
// CraftBukkit end
*/
// where is EntityTypes? it isn't in CB, but can be found decompiled in mc-dev:
// https://github.com/MinecraftPortCentral/mc-dev/blob/master/net/minecraft/server/EntityTypes.java
// nms EntityTypes.a() will let you spawn by entity id
if (plugin.hasPermission(player, "silkspawners.info")) {
player.sendMessage("Spawning entity " + entityID);
}
net.minecraft.server.World world = ((CraftWorld)player.getWorld()).getHandle();
net.minecraft.server.Entity entity = net.minecraft.server.EntityTypes.a(entityID, world);
if (entity == null) {
if (plugin.hasPermission(player, "silkspawners.info")) {
player.sendMessage("Failed to spawn, falling through");
}
return; // not cancelled
}
// Spawn on top of targetted block
Location location = block.getLocation().add(0, 1, 0);
double x = location.getX();
double y = location.getY();
double z = location.getZ();
// Magic
entity.setPositionRotation(x, y, z, world.random.nextFloat() * 360.0f, 0.0f);
world.addEntity(entity, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.SPAWNER_EGG);
if (entity instanceof net.minecraft.server.EntityLiving) {
((net.minecraft.server.EntityLiving)entity).az();
}
// Remove item from player hand
if (item.getAmount() == 1) {
player.setItemInHand(null);
} else {
item.setAmount(item.getAmount() - 1);
player.setItemInHand(item);
}
// prevent normal spawning
event.setCancelled(true);
}
}
}
}
}
class SilkSpawnersSetCreatureTask implements Runnable {
short entityID;
Block block;
SilkSpawners plugin;
Player player;
public SilkSpawnersSetCreatureTask(short entityID, Block block, SilkSpawners plugin, Player player) {
this.entityID = entityID;
this.block = block;
this.plugin = plugin;
this.player = player;
}
public void run() {
try {
plugin.setSpawnerEntityID(block, entityID);
} catch (Exception e) {
plugin.informPlayer(player, "Failed to set type: " + e);
}
}
}
public class SilkSpawners extends JavaPlugin {
static Logger log = Logger.getLogger("Minecraft");
SilkSpawnersBlockListener blockListener;
ConcurrentHashMap<Short,String> eid2DisplayName; // human-readable friendly name
ConcurrentHashMap<Short,String> eid2MobID; // internal String used by spawners
ConcurrentHashMap<String,Short> mobID2Eid;
ConcurrentHashMap<String,Short> name2Eid; // aliases to entity ID
short defaultEntityID;
boolean usePermissions;
Field tileField, mobIDField;
// To avoid confusing with badly name MONSTER_EGGS (silverfish), set our own material
final static Material SPAWN_EGG = Material.MONSTER_EGG;
public boolean spoutEnabled = false;
public void onEnable() {
loadConfig();
//check for spout
if (Bukkit.getPluginManager().isPluginEnabled("Spout")) {
if (getConfig().getBoolean("useSpout")) {
Bukkit.getLogger().log(Level.INFO, "[SilkSpawners] Spout present. Enabling Spout features.");
spoutEnabled = true;
} else {
Bukkit.getLogger().log(Level.INFO, "[SilkSpawners] Disabling Spout features even though Spout is present.");
}
}
// Listeners
blockListener = new SilkSpawnersBlockListener(this);
log.info("SilkSpawners enabled");
}
public boolean hasPermission(Player player, String node) {
if (usePermissions) {
return player.hasPermission(node);
} else {
if (node.equals("silkspawners.info") ||
node.equals("silkspawners.silkdrop") ||
node.equals("silkspawners.destroydrop") ||
node.equals("silkspawners.viewtype")) {
return true;
} else {
return player.isOp();
}
}
}
// Copy default configuration
// Sure we could use getConfig().options().copyDefaults(true);, but it strips all comments :(
public boolean newConfig(File file) {
FileWriter fileWriter;
if (!file.getParentFile().exists()) {
file.getParentFile().mkdir();
}
try {
fileWriter = new FileWriter(file);
} catch (IOException e) {
log.severe("Couldn't write config file: " + e.getMessage());
Bukkit.getServer().getPluginManager().disablePlugin(this);
return false;
}
BufferedReader reader = new BufferedReader(new InputStreamReader(new BufferedInputStream(getResource("config.yml"))));
BufferedWriter writer = new BufferedWriter(fileWriter);
try {
String line = reader.readLine();
while (line != null) {
writer.write(line + System.getProperty("line.separator"));
line = reader.readLine();
}
log.info("Wrote default config");
} catch (IOException e) {
log.severe("Error writing config: " + e.getMessage());
} finally {
try {
writer.close();
reader.close();
} catch (IOException e) {
log.severe("Error saving config: " + e.getMessage());
Bukkit.getServer().getPluginManager().disablePlugin(this);
}
}
return true;
}
@SuppressWarnings("unchecked")
public SortedMap<Integer,String> scanEntityMap() {
SortedMap<Integer,String> sortedMap = new TreeMap<Integer,String>();
// Use reflection to dump native EntityTypes
// This bypasses Bukkit's wrappers, so it works with mods
try {
// https://github.com/MinecraftPortCentral/mc-dev/blob/master/net/minecraft/server/EntityTypes.java
// f.put(s, Integer.valueOf(i));
Field field = net.minecraft.server.EntityTypes.class.getDeclaredField(getConfig().getString("entityMapField", "f"));
field.setAccessible(true);
Map<String,Integer> map = (Map<String,Integer>)field.get(null);
for (Map.Entry<String,Integer> entry: ((Map<String,Integer>)map).entrySet()) {
sortedMap.put(entry.getValue(), entry.getKey());
}
} catch (Exception e) {
log.severe("Failed to dump entity map: " + e);
}
return sortedMap;
}
private void loadConfig() {
String filename = getDataFolder() + System.getProperty("file.separator") + "config.yml";
File file = new File(filename);
if (!file.exists()) {
if (!newConfig(file)) {
throw new IllegalArgumentException("Could not create new configuration file");
}
}
reloadConfig();
boolean verbose = getConfig().getBoolean("verboseConfig", true);
eid2MobID = new ConcurrentHashMap<Short,String>();
mobID2Eid = new ConcurrentHashMap<String,Short>();
SortedMap<Integer,String> sortedMap = scanEntityMap();
eid2DisplayName = new ConcurrentHashMap<Short,String>();
name2Eid = new ConcurrentHashMap<String,Short>();
for (Map.Entry<Integer,String> entry: sortedMap.entrySet()) {
short entityID = (short)(int)entry.getKey(); // entity ID used for spawn eggs
String mobID = entry.getValue(); // internal mod ID used for spawner type
// Lookup creature info
boolean enable = getConfig().getBoolean("enableCreatureDefault", true);
enable = getConfig().getBoolean("creatures."+mobID+".enable", enable);
if (!enable) {
if (verbose) {
log.info("Entity " + entityID + " = " + mobID + " (disabled)");
}
continue;
}
eid2MobID.put(entityID, mobID);
mobID2Eid.put(mobID, entityID);
// In-game name for user display, and other recognized names for user input lookup
String displayName = getConfig().getString("creatures."+mobID+".displayName");
if (displayName == null) {
displayName = mobID;
}
eid2DisplayName.put(entityID, displayName);
List<String> aliases = getConfig().getStringList("creatures."+mobID+".aliases");
aliases.add(displayName.toLowerCase().replace(" ", ""));
aliases.add(mobID.toLowerCase().replace(" ", ""));
aliases.add(entityID+"");
for (String alias: aliases) {
name2Eid.put(alias, entityID);
}
if (verbose) {
log.info("Entity " + entityID + " = " + mobID + " (display name: " + displayName + ", aliases: " + aliases + ")");
}
}
// Get the entity ID of the creatures to spawn on damage 0 spawners, or otherwise not override
// (then will default to Minecraft's default of pigs)
defaultEntityID = 0;
String defaultCreatureString = getConfig().getString("defaultCreature", null);
if (defaultCreatureString != null) {
if (name2Eid.containsKey(defaultCreatureString)) {
short defaultEid = name2Eid.get(defaultCreatureString);
ItemStack defaultItemStack = newEggItem(defaultEid);
if (defaultItemStack != null) {
defaultEntityID = defaultItemStack.getDurability();
if (verbose) {
log.info("Default monster spawner set to "+eid2DisplayName.get(defaultEid));
}
} else {
log.warning("Unable to lookup name of " + defaultCreatureString+", default monster spawner not set");
}
} else {
log.warning("Invalid creature type: " + defaultCreatureString+", default monster spawner not set");
}
}
usePermissions = getConfig().getBoolean("usePermissions", false);
if (getConfig().getBoolean("craftableSpawners", false)) {
loadRecipes();
}
if (getConfig().getBoolean("useReflection", true)) {
try {
tileField = CraftCreatureSpawner.class.getDeclaredField("spawner");
tileField.setAccessible(true);
mobIDField = net.minecraft.server.TileEntityMobSpawner.class.getDeclaredField("mobName"); // MCP "mobID"
mobIDField.setAccessible(true);
} catch (Exception e) {
log.warning("Failed to reflect, falling back to wrapper methods: " + e);
tileField = null;
mobIDField = null;
}
} else {
tileField = null;
mobIDField = null;
}
// Optionally make spawners unstackable in an attempt to be more compatible with CraftBukkit++
// Requested on http://dev.bukkit.org/server-mods/silkspawners/#c25
if (getConfig().getBoolean("spawnersUnstackable", false)) {
// http://forums.bukkit.org/threads/setting-max-stack-size.66364/
try {
Field maxStackSizeField = net.minecraft.server.Item.class.getDeclaredField(getConfig().getString("spawnersUnstackableField", "maxStackSize"));
maxStackSizeField.setAccessible(true);
maxStackSizeField.setInt(net.minecraft.server.Item.byId[Material.MOB_SPAWNER.getId()], 1);
} catch (Exception e) {
log.warning("Failed to set max stack size, ignoring spawnersUnstackable: " + e);
}
}
}
private void loadRecipes() {
for (short entityID: eid2MobID.keySet()) {
String mobID = eid2MobID.get(entityID);
if (!getConfig().getBoolean("creatures."+mobID+".enableCraftingSpawner", true)) {
if (getConfig().getBoolean("verboseConfig", true)) {
log.info("Skipping crafting recipe for "+mobID+" per config");
}
continue;
}
ItemStack spawnerItem = newSpawnerItem(entityID);
ShapedRecipe recipe = new ShapedRecipe(spawnerItem);
recipe.shape(new String[] { "AAA", "ABA", "AAA" });
recipe.setIngredient('A', Material.IRON_FENCE);
recipe.setIngredient('B', Material.MONSTER_EGG, (int)entityID);
Bukkit.getServer().addRecipe(recipe);
}
}
public void onDisable() {
log.info("SilkSpawners disabled");
}
public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args) {
if (!cmd.getName().equalsIgnoreCase("silkspawners")) {
return false;
}
if (!(sender instanceof Player)) {
// Would like to handle the non-player (console command) case, but, I use the block the
// player is looking at, so...
return false;
}
Player player = (Player)sender;
if (args.length == 0) {
// Get spawner type
if (!hasPermission(player, "silkspawners.viewtype")) {
sender.sendMessage("You do not have permission to view the spawner type");
return true;
}
Block block = getSpawnerFacing(player);
if (block == null) {
sender.sendMessage("You must be looking directly at a spawner to use this command");
return false;
}
try {
short entityID = getSpawnerEntityID(block);
sender.sendMessage(getCreatureName(entityID) + " spawner");
} catch (Exception e) {
informPlayer(player, "Failed to identify spawner: " + e);
}
} else {
// Set or get spawner
Block block = getSpawnerFacing(player);
String creatureString = args[0];
if (creatureString.equalsIgnoreCase("all")) {
// Get list of all creatures..anyone can do this
showAllCreatures(player);
return true;
}
boolean isEgg = false;
if (creatureString.endsWith("egg")) {
isEgg = true;
creatureString = creatureString.replaceFirst("egg$", "");
}
if (!name2Eid.containsKey(creatureString)) {
player.sendMessage("Unrecognized creature "+creatureString);
return true;
}
short entityID = name2Eid.get(creatureString);
if (block != null && !isEgg) {
if (!hasPermission(player, "silkspawners.changetype")) {
player.sendMessage("You do not have permission to change spawners with /spawner");
return true;
}
setSpawnerType(block, entityID, player);
} else {
// Get free spawner item in hand
if (!hasPermission(player, "silkspawners.freeitem")) {
if (hasPermission(player, "silkspawners.viewtype")) {
sender.sendMessage("You must be looking directly at a spawner to use this command");
} else {
sender.sendMessage("You do not have permission to use this command");
}
return true;
}
if (player.getItemInHand() != null && player.getItemInHand().getType() != Material.AIR) {
sender.sendMessage("To use this command, empty your hand (to get a free spawner item) or point at an existing spawner (to change the spawner type)");
return true;
}
if (isEgg) {
player.setItemInHand(newEggItem(entityID));
sender.sendMessage(getCreatureName(entityID) + " spawn egg");
} else {
player.setItemInHand(newSpawnerItem(entityID));
sender.sendMessage(getCreatureName(entityID) + " spawner");
}
}
}
return true;
}
// Set spawner type from user
public void setSpawnerType(Block block, short entityID, Player player) {
if (!canBuildHere(player, block.getLocation())) {
player.sendMessage("Changing spawner type denied by WorldGuard protection");
return;
}
try {
setSpawnerEntityID(block, entityID);
} catch (Exception e) {
informPlayer(player, "Failed to set type: " + e);
}
player.sendMessage(getCreatureName(entityID) + " spawner");
}
// Return the spawner block the player is looking at, or null if isn't
private Block getSpawnerFacing(Player player) {
Block block = player.getTargetBlock(null, getConfig().getInt("spawnerCommandReachDistance", 6));
if (block == null || block.getType() != Material.MOB_SPAWNER) {
return null;
}
return block;
}
// Get a creature name suitable for displaying to the user
// Internal mob names are are like 'LavaSlime', this will return
// the in-game name like 'Magma Cube'
public String getCreatureName(short entityID) {
String displayName = eid2DisplayName.get(entityID);
if (displayName == null) {
EntityType ct = EntityType.fromId(entityID);
if (ct != null) {
displayName = "("+ct.getName()+")";
} else {
displayName = String.valueOf(entityID);
}
}
return displayName;
}
public static ItemStack newEggItem(short entityID, int amount) {
return new ItemStack(SPAWN_EGG, 1, entityID);
}
public static ItemStack newEggItem(short entityID) {
return newEggItem(entityID, 1);
}
// Create a tagged a mob spawner _item_ with its entity ID so we know what it spawns
// This is not part of vanilla, but our own convention
public static ItemStack newSpawnerItem(short entityID) {
ItemStack item = new ItemStack(Material.MOB_SPAWNER, 1, entityID);
// Tag the entity ID several ways, for compatibility
// Bukkit bug resets durability on spawners
// https://bukkit.atlassian.net/browse/BUKKIT-329 MobSpawner should retains durability/data values.
// Try it anyways, just in case the bug has been fixed
item.setDurability(entityID);
// TODO: Creaturebox compatibility
// see http://dev.bukkit.org/server-mods/creaturebox/pages/trading-mob-spawners/
//item.addUnsafeEnchantment(Enchantment.OXYGEN, entityID);
item.addUnsafeEnchantment(Enchantment.SILK_TOUCH, entityID);
return item;
}
// Get the entity ID
public static short getStoredSpawnerItemEntityID(ItemStack item) {
short id = item.getDurability();
if (id != 0) {
return id;
}
// TODO: compatibility with Creaturebox's 0-22
/*
id = (short)item.getEnchantmentLevel(Enchantment.OXYGEN);
if (id != 0) {
return id;
}*/
id = (short)item.getEnchantmentLevel(Enchantment.SILK_TOUCH);
if (id != 0) {
return id;
}
return 0;
}
public void showAllCreatures(Player player) {
String message = "";
for (String displayName: eid2DisplayName.values()) {
displayName = displayName.replaceAll(" ", "");
message += displayName + ", ";
}
message = message.substring(0, message.length() - ", ".length());
player.sendMessage(message);
}
public void informPlayer(Player player, String message) {
if (hasPermission(player, "silkspawners.info")) {
player.sendMessage(message);
}
}
// Return whether mob is recognized by Bukkit's wrappers
public boolean isRecognizedMob(String mobID) {
return EntityType.fromName(mobID) != null;
}
// Better methods for setting/getting spawner type
// These don't rely on CreatureSpawner, if possible, and instead set/get the
// mobID directly from the tile entity
public short getSpawnerEntityID(Block block) {
BlockState blockState = block.getState();
if (!(blockState instanceof CreatureSpawner)) {
throw new IllegalArgumentException("getSpawnerEntityID called on non-spawner block: " + block);
}
CraftCreatureSpawner spawner = ((CraftCreatureSpawner)blockState);
// Get the mob ID ourselves if we can
if (tileField != null && mobIDField != null) {
try {
net.minecraft.server.TileEntityMobSpawner tile = (net.minecraft.server.TileEntityMobSpawner)tileField.get(spawner);
//log.info("tile ="+tile);
String mobID = (String)mobIDField.get(tile);
//log.info("mobID ="+mobID);
return mobID2Eid.get(mobID);
} catch (Exception e) {
log.info("Reflection failed: " + e);
// fall through
}
}
// or ask Bukkit if we have to
//int entityID = spawner.getSpawnedType().getTypeId(); // TODO: 1.1-R5
return spawner.getSpawnedType().getTypeId();
}
public void setSpawnerEntityID(Block block, short entityID) {
BlockState blockState = block.getState();
if (!(blockState instanceof CreatureSpawner)) {
throw new IllegalArgumentException("setSpawnerEntityID called on non-spawner block: " + block);
}
CraftCreatureSpawner spawner = ((CraftCreatureSpawner)blockState);
// Try the more powerful native methods first
if (tileField != null && mobIDField != null) {
try {
String mobID = eid2MobID.get(entityID);
net.minecraft.server.TileEntityMobSpawner tile = (net.minecraft.server.TileEntityMobSpawner)tileField.get(spawner);
//log.info("tile ="+tile);
tile.a(mobID); // MCP setMobID
return;
} catch (Exception e) {
log.info("Reflection failed: " + e);
// fall through
}
}
// Fallback to wrapper
EntityType ct = EntityType.fromId(entityID);
if (ct == null) {
throw new IllegalArgumentException("Failed to find creature type for "+entityID);
}
spawner.setSpawnedType(ct);
//spawner.setSpawnedType(EntityType.fromId(entityID)); // TODO: 1.1-R5
blockState.update();