WorldGuard/worldguard-legacy/src/main/java/com/sk89q/worldguard/bukkit/listener/WorldGuardEntityListener.java

741 lines
27 KiB
Java

/*
* WorldGuard, a suite of tools for Minecraft
* Copyright (C) sk89q <http://www.sk89q.com>
* Copyright (C) WorldGuard team and contributors
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser 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 Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.sk89q.worldguard.bukkit.listener;
import com.sk89q.worldedit.blocks.BlockID;
import com.sk89q.worldguard.LocalPlayer;
import com.sk89q.worldguard.bukkit.*;
import com.sk89q.worldguard.bukkit.util.Entities;
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.block.Block;
import org.bukkit.entity.*;
import org.bukkit.entity.minecart.ExplosiveMinecart;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.Listener;
import org.bukkit.event.entity.*;
import org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason;
import org.bukkit.event.entity.EntityDamageEvent.DamageCause;
import org.bukkit.inventory.ItemStack;
import org.bukkit.projectiles.ProjectileSource;
import java.util.Set;
/**
* Listener for entity related events.
*
* @author sk89q
*/
public class WorldGuardEntityListener implements Listener {
private WorldGuardPlugin plugin;
/**
* Construct the object;
*
* @param plugin The plugin instance
*/
public WorldGuardEntityListener(WorldGuardPlugin plugin) {
this.plugin = plugin;
}
/**
* Register events.
*/
public void registerEvents() {
plugin.getServer().getPluginManager().registerEvents(this, plugin);
}
@EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
public void onEntityInteract(EntityInteractEvent event) {
Entity entity = event.getEntity();
Block block = event.getBlock();
ConfigurationManager cfg = plugin.getGlobalStateManager();
WorldConfiguration wcfg = cfg.get(entity.getWorld());
if (block.getTypeId() == BlockID.SOIL) {
if (/* entity instanceof Creature && // catch for any entity (not thrown for players) */
wcfg.disableCreatureCropTrampling) {
event.setCancelled(true);
}
}
}
@EventHandler(priority = EventPriority.HIGH)
public void onEntityDeath(EntityDeathEvent event) {
WorldConfiguration wcfg = plugin.getGlobalStateManager().get(event.getEntity().getWorld());
if (event instanceof PlayerDeathEvent && wcfg.disableDeathMessages) {
((PlayerDeathEvent) event).setDeathMessage("");
}
}
private void onEntityDamageByBlock(EntityDamageByBlockEvent event) {
Entity defender = event.getEntity();
DamageCause type = event.getCause();
ConfigurationManager cfg = plugin.getGlobalStateManager();
WorldConfiguration wcfg = cfg.get(defender.getWorld());
if (defender instanceof Wolf && ((Wolf) defender).isTamed()) {
if (wcfg.antiWolfDumbness && !(type == DamageCause.VOID)) {
event.setCancelled(true);
return;
}
} else if (defender instanceof Player) {
Player player = (Player) defender;
if (wcfg.disableLavaDamage && type == DamageCause.LAVA) {
event.setCancelled(true);
player.setFireTicks(0);
return;
}
if (wcfg.disableContactDamage && type == DamageCause.CONTACT) {
event.setCancelled(true);
return;
}
if (wcfg.teleportOnVoid && type == DamageCause.VOID) {
BukkitUtil.findFreePosition(player);
event.setCancelled(true);
return;
}
if (wcfg.disableVoidDamage && type == DamageCause.VOID) {
event.setCancelled(true);
return;
}
if (type == DamageCause.BLOCK_EXPLOSION
&& (wcfg.disableExplosionDamage || wcfg.blockOtherExplosions
|| (wcfg.explosionFlagCancellation
&& !plugin.getGlobalRegionManager().allows(DefaultFlag.OTHER_EXPLOSION, player.getLocation())))) {
event.setCancelled(true);
return;
}
} else {
// for whatever reason, plugin-caused explosions with a null entity count as block explosions and aren't
// handled anywhere else
if (type == DamageCause.BLOCK_EXPLOSION
&& (wcfg.blockOtherExplosions
|| (wcfg.explosionFlagCancellation
&& !plugin.getGlobalRegionManager().allows(DefaultFlag.OTHER_EXPLOSION, defender.getLocation())))) {
event.setCancelled(true);
return;
}
}
}
private void onEntityDamageByEntity(EntityDamageByEntityEvent event) {
if (event.getDamager() instanceof Projectile) {
onEntityDamageByProjectile(event);
return;
}
Entity attacker = event.getDamager();
Entity defender = event.getEntity();
WorldConfiguration wcfg = plugin.getGlobalStateManager().get(defender.getWorld());
if (defender instanceof ItemFrame) {
if (checkItemFrameProtection(attacker, (ItemFrame) defender)) {
event.setCancelled(true);
return;
}
} else if (defender.getType() == Entities.armorStandType && !(attacker instanceof Player)) {
if (wcfg.blockEntityArmorStandDestroy) {
event.setCancelled(true);
return;
}
}
if (attacker != null && attacker.getType() == Entities.enderCrystalType) {
// this isn't handled elsewhere because ender crystal explosions don't carry a player cause
// in the same way that creepers or tnt can
if (wcfg.useRegions && wcfg.explosionFlagCancellation) {
if (!plugin.getRegionContainer().createQuery().getApplicableRegions(defender.getLocation())
.testState(null, DefaultFlag.OTHER_EXPLOSION)) {
event.setCancelled(true);
return;
}
}
}
if (defender instanceof Player) {
Player player = (Player) defender;
LocalPlayer localPlayer = plugin.wrapPlayer(player);
if (wcfg.disableLightningDamage && event.getCause() == DamageCause.LIGHTNING) {
event.setCancelled(true);
return;
}
if (wcfg.disableExplosionDamage) {
switch (event.getCause()) {
case BLOCK_EXPLOSION:
case ENTITY_EXPLOSION:
event.setCancelled(true);
return;
}
}
if (attacker != null) {
if (attacker instanceof TNTPrimed || attacker instanceof ExplosiveMinecart) {
// The check for explosion damage should be handled already... But... What ever...
if (wcfg.blockTNTExplosions) {
event.setCancelled(true);
return;
}
}
if (attacker instanceof LivingEntity && !(attacker instanceof Player)) {
if (attacker instanceof Creeper && wcfg.blockCreeperExplosions) {
event.setCancelled(true);
return;
}
if (wcfg.disableMobDamage) {
event.setCancelled(true);
return;
}
if (wcfg.useRegions) {
ApplicableRegionSet set = plugin.getRegionContainer().createQuery().getApplicableRegions(defender.getLocation());
if (!set.allows(DefaultFlag.MOB_DAMAGE, localPlayer) && !(attacker instanceof Tameable)) {
event.setCancelled(true);
return;
}
if (attacker instanceof Creeper) {
if (!set.allows(DefaultFlag.CREEPER_EXPLOSION, localPlayer) && wcfg.explosionFlagCancellation) {
event.setCancelled(true);
return;
}
}
}
}
}
}
}
private void onEntityDamageByProjectile(EntityDamageByEntityEvent event) {
Entity defender = event.getEntity();
Entity attacker;
ProjectileSource source = ((Projectile) event.getDamager()).getShooter();
if (source instanceof LivingEntity) {
attacker = (LivingEntity) source;
} else {
return;
}
ConfigurationManager cfg = plugin.getGlobalStateManager();
WorldConfiguration wcfg = cfg.get(defender.getWorld());
if (defender instanceof Player) {
Player player = (Player) defender;
LocalPlayer localPlayer = plugin.wrapPlayer(player);
// Check Mob
if (!(attacker instanceof Player)) {
if (wcfg.disableMobDamage) {
event.setCancelled(true);
return;
}
if (wcfg.useRegions) {
if (!plugin.getRegionContainer().createQuery().getApplicableRegions(defender.getLocation()).allows(DefaultFlag.MOB_DAMAGE, localPlayer)) {
event.setCancelled(true);
return;
}
}
if (event.getDamager() instanceof Fireball) {
Fireball fireball = (Fireball) event.getDamager();
if (fireball instanceof WitherSkull) {
if (wcfg.blockWitherSkullExplosions) {
event.setCancelled(true);
return;
}
} else {
if (wcfg.blockFireballExplosions) {
event.setCancelled(true);
return;
}
}
if (wcfg.useRegions) {
RegionQuery query = plugin.getRegionContainer().createQuery();
if (!query.testState(defender.getLocation(), (Player) defender, DefaultFlag.GHAST_FIREBALL) && wcfg.explosionFlagCancellation) {
event.setCancelled(true);
return;
}
}
}
}
} else if (defender instanceof ItemFrame) {
if (checkItemFrameProtection(attacker, (ItemFrame) defender)) {
event.setCancelled(true);
return;
}
} else if (defender.getType() == Entities.armorStandType && Entities.isNonPlayerCreature(attacker)) {
if (wcfg.blockEntityArmorStandDestroy) {
event.setCancelled(true);
}
}
}
@EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
public void onEntityDamage(EntityDamageEvent event) {
if (event instanceof EntityDamageByEntityEvent) {
this.onEntityDamageByEntity((EntityDamageByEntityEvent) event);
return;
} else if (event instanceof EntityDamageByBlockEvent) {
this.onEntityDamageByBlock((EntityDamageByBlockEvent) event);
return;
}
Entity defender = event.getEntity();
DamageCause type = event.getCause();
ConfigurationManager cfg = plugin.getGlobalStateManager();
WorldConfiguration wcfg = cfg.get(defender.getWorld());
if (defender instanceof Wolf && ((Wolf) defender).isTamed()) {
if (wcfg.antiWolfDumbness) {
event.setCancelled(true);
return;
}
} else if (defender instanceof Player) {
Player player = (Player) defender;
if (type == DamageCause.WITHER) {
// wither boss DoT tick
if (wcfg.disableMobDamage) {
event.setCancelled(true);
return;
}
if (wcfg.useRegions) {
ApplicableRegionSet set = plugin.getRegionContainer().createQuery().getApplicableRegions(defender.getLocation());
if (!set.allows(DefaultFlag.MOB_DAMAGE, plugin.wrapPlayer(player))) {
event.setCancelled(true);
return;
}
}
}
if (type == DamageCause.DROWNING && cfg.hasAmphibiousMode(player)) {
player.setRemainingAir(player.getMaximumAir());
event.setCancelled(true);
return;
}
ItemStack helmet = player.getInventory().getHelmet();
if (type == DamageCause.DROWNING && wcfg.pumpkinScuba
&& helmet != null
&& (helmet.getTypeId() == BlockID.PUMPKIN
|| helmet.getTypeId() == BlockID.JACKOLANTERN)) {
player.setRemainingAir(player.getMaximumAir());
event.setCancelled(true);
return;
}
if (wcfg.disableFallDamage && type == DamageCause.FALL) {
event.setCancelled(true);
return;
}
if (wcfg.disableFireDamage && (type == DamageCause.FIRE
|| type == DamageCause.FIRE_TICK)) {
event.setCancelled(true);
return;
}
if (wcfg.disableDrowningDamage && type == DamageCause.DROWNING) {
player.setRemainingAir(player.getMaximumAir());
event.setCancelled(true);
return;
}
if (wcfg.teleportOnSuffocation && type == DamageCause.SUFFOCATION) {
BukkitUtil.findFreePosition(player);
event.setCancelled(true);
return;
}
if (wcfg.disableSuffocationDamage && type == DamageCause.SUFFOCATION) {
event.setCancelled(true);
return;
}
}
}
/*
* Called on entity explode.
*/
@EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
public void onEntityExplode(EntityExplodeEvent event) {
ConfigurationManager cfg = plugin.getGlobalStateManager();
Location l = event.getLocation();
World world = l.getWorld();
WorldConfiguration wcfg = cfg.get(world);
Entity ent = event.getEntity();
if (cfg.activityHaltToggle) {
ent.remove();
event.setCancelled(true);
return;
}
if (ent instanceof Creeper) {
if (wcfg.blockCreeperExplosions) {
event.setCancelled(true);
return;
}
if (wcfg.blockCreeperBlockDamage) {
event.blockList().clear();
return;
}
} else if (ent instanceof EnderDragon) {
if (wcfg.blockEnderDragonBlockDamage) {
event.blockList().clear();
return;
}
} else if (ent instanceof TNTPrimed || ent instanceof ExplosiveMinecart) {
if (wcfg.blockTNTExplosions) {
event.setCancelled(true);
return;
}
if (wcfg.blockTNTBlockDamage) {
event.blockList().clear();
return;
}
} else if (ent instanceof Fireball) {
if (ent instanceof WitherSkull) {
if (wcfg.blockWitherSkullExplosions) {
event.setCancelled(true);
return;
}
if (wcfg.blockWitherSkullBlockDamage) {
event.blockList().clear();
return;
}
} else {
if (wcfg.blockFireballExplosions) {
event.setCancelled(true);
return;
}
if (wcfg.blockFireballBlockDamage) {
event.blockList().clear();
return;
}
}
// allow wither skull blocking since there is no dedicated flag atm
if (wcfg.useRegions) {
for (Block block : event.blockList()) {
if (!plugin.getRegionContainer().createQuery().getApplicableRegions(block.getLocation()).allows(DefaultFlag.GHAST_FIREBALL)) {
event.blockList().clear();
if (wcfg.explosionFlagCancellation) event.setCancelled(true);
return;
}
}
}
} else if (ent instanceof Wither) {
if (wcfg.blockWitherExplosions) {
event.setCancelled(true);
return;
}
if (wcfg.blockWitherBlockDamage) {
event.blockList().clear();
return;
}
if (wcfg.useRegions) {
for (Block block : event.blockList()) {
if (!plugin.getGlobalRegionManager().allows(DefaultFlag.WITHER_DAMAGE, block.getLocation())) {
event.blockList().clear();
event.setCancelled(true);
return;
}
}
}
} else {
// unhandled entity
if (wcfg.blockOtherExplosions) {
event.setCancelled(true);
return;
}
if (wcfg.useRegions) {
RegionManager mgr = plugin.getGlobalRegionManager().get(world);
for (Block block : event.blockList()) {
if (!plugin.getRegionContainer().createQuery().getApplicableRegions(block.getLocation()).allows(DefaultFlag.OTHER_EXPLOSION)) {
event.blockList().clear();
if (wcfg.explosionFlagCancellation) event.setCancelled(true);
return;
}
}
}
}
if (wcfg.signChestProtection) {
for (Block block : event.blockList()) {
if (wcfg.isChestProtected(block)) {
event.blockList().clear();
return;
}
}
}
}
/*
* Called on explosion prime
*/
@EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
public void onExplosionPrime(ExplosionPrimeEvent event) {
ConfigurationManager cfg = plugin.getGlobalStateManager();
WorldConfiguration wcfg = cfg.get(event.getEntity().getWorld());
Entity ent = event.getEntity();
if (cfg.activityHaltToggle) {
ent.remove();
event.setCancelled(true);
return;
}
if (event.getEntityType() == EntityType.WITHER) {
if (wcfg.blockWitherExplosions) {
event.setCancelled(true);
return;
}
} else if (event.getEntityType() == EntityType.WITHER_SKULL) {
if (wcfg.blockWitherSkullExplosions) {
event.setCancelled(true);
return;
}
} else if (event.getEntityType() == EntityType.FIREBALL) {
if (wcfg.blockFireballExplosions) {
event.setCancelled(true);
return;
}
} else if (event.getEntityType() == EntityType.CREEPER) {
if (wcfg.blockCreeperExplosions) {
event.setCancelled(true);
return;
}
} else if (event.getEntityType() == EntityType.PRIMED_TNT
|| event.getEntityType() == EntityType.MINECART_TNT) {
if (wcfg.blockTNTExplosions) {
event.setCancelled(true);
return;
}
}
}
@EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
public void onCreatureSpawn(CreatureSpawnEvent event) {
ConfigurationManager cfg = plugin.getGlobalStateManager();
if (cfg.activityHaltToggle) {
event.setCancelled(true);
return;
}
WorldConfiguration wcfg = cfg.get(event.getEntity().getWorld());
// allow spawning of creatures from plugins
if (!wcfg.blockPluginSpawning && event.getSpawnReason() == CreatureSpawnEvent.SpawnReason.CUSTOM) {
return;
}
// armor stands are living entities, but we check them as blocks/non-living entities, so ignore them here
if (Entities.isConsideredBuildingIfUsed(event.getEntity())) {
return;
}
if (wcfg.allowTamedSpawns
&& event.getEntity() instanceof Tameable // nullsafe check
&& ((Tameable) event.getEntity()).isTamed()) {
return;
}
EntityType entityType = event.getEntityType();
if (wcfg.blockCreatureSpawn.contains(entityType)) {
event.setCancelled(true);
return;
}
Location eventLoc = event.getLocation();
if (wcfg.useRegions && cfg.useRegionsCreatureSpawnEvent) {
ApplicableRegionSet set = plugin.getRegionContainer().createQuery().getApplicableRegions(eventLoc);
if (!set.allows(DefaultFlag.MOB_SPAWNING)) {
event.setCancelled(true);
return;
}
Set<EntityType> entityTypes = set.getFlag(DefaultFlag.DENY_SPAWN);
if (entityTypes != null && entityTypes.contains(entityType)) {
event.setCancelled(true);
return;
}
}
if (wcfg.blockGroundSlimes && entityType == EntityType.SLIME
&& eventLoc.getY() >= 60
&& event.getSpawnReason() == SpawnReason.NATURAL) {
event.setCancelled(true);
return;
}
}
@EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
public void onCreatePortal(EntityCreatePortalEvent event) {
ConfigurationManager cfg = plugin.getGlobalStateManager();
WorldConfiguration wcfg = cfg.get(event.getEntity().getWorld());
switch (event.getEntityType()) {
case ENDER_DRAGON:
if (wcfg.blockEnderDragonPortalCreation) event.setCancelled(true);
break;
}
}
@EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
public void onPigZap(PigZapEvent event) {
ConfigurationManager cfg = plugin.getGlobalStateManager();
WorldConfiguration wcfg = cfg.get(event.getEntity().getWorld());
if (wcfg.disablePigZap) {
event.setCancelled(true);
}
}
@EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
public void onCreeperPower(CreeperPowerEvent event) {
ConfigurationManager cfg = plugin.getGlobalStateManager();
WorldConfiguration wcfg = cfg.get(event.getEntity().getWorld());
if (wcfg.disableCreeperPower) {
event.setCancelled(true);
}
}
@EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
public void onEntityRegainHealth(EntityRegainHealthEvent event) {
Entity ent = event.getEntity();
World world = ent.getWorld();
ConfigurationManager cfg = plugin.getGlobalStateManager();
WorldConfiguration wcfg = cfg.get(world);
if (wcfg.disableHealthRegain) {
event.setCancelled(true);
return;
}
}
/**
* Called when an entity changes a block somehow
*
* @param event Relevant event details
*/
@EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
public void onEntityChangeBlock(EntityChangeBlockEvent event) {
Entity ent = event.getEntity();
Block block = event.getBlock();
Location location = block.getLocation();
ConfigurationManager cfg = plugin.getGlobalStateManager();
WorldConfiguration wcfg = cfg.get(ent.getWorld());
if (ent instanceof Enderman) {
if (wcfg.disableEndermanGriefing) {
event.setCancelled(true);
return;
}
if (wcfg.useRegions) {
if (!plugin.getGlobalRegionManager().allows(DefaultFlag.ENDER_BUILD, location)) {
event.setCancelled(true);
return;
}
}
} else if (ent.getType() == EntityType.WITHER) {
if (wcfg.blockWitherBlockDamage || wcfg.blockWitherExplosions) {
event.setCancelled(true);
return;
}
if (wcfg.useRegions) {
if (!plugin.getGlobalRegionManager().allows(DefaultFlag.WITHER_DAMAGE, location)) {
event.setCancelled(true);
return;
}
}
} else if (/*ent instanceof Zombie && */event instanceof EntityBreakDoorEvent) {
if (wcfg.blockZombieDoorDestruction) {
event.setCancelled(true);
return;
}
}
}
/**
* Checks regions and config settings to protect items from being knocked
* out of item frames.
* @param attacker attacking entity
* @param defender item frame being damaged
* @return true if the event should be cancelled
*/
private boolean checkItemFrameProtection(Entity attacker, ItemFrame defender) {
World world = attacker.getWorld();
ConfigurationManager cfg = plugin.getGlobalStateManager();
WorldConfiguration wcfg = cfg.get(world);
if (wcfg.useRegions) {
// bukkit throws this event when a player attempts to remove an item from a frame
RegionManager mgr = plugin.getGlobalRegionManager().get(world);
if (!(attacker instanceof Player)) {
if (!plugin.getGlobalRegionManager().allows(
DefaultFlag.ENTITY_ITEM_FRAME_DESTROY, defender.getLocation())) {
return true;
}
}
}
if (wcfg.blockEntityItemFrameDestroy && !(attacker instanceof Player)) {
return true;
}
return false;
}
}