Factions/src/com/massivecraft/factions/engine/EngineExploit.java
2015-01-19 09:58:25 +01:00

141 lines
4.9 KiB
Java

package com.massivecraft.factions.engine;
import java.util.ArrayList;
import java.util.List;
import org.bukkit.block.Block;
import org.bukkit.entity.TNTPrimed;
import org.bukkit.event.block.BlockFromToEvent;
import org.bukkit.event.entity.EntityExplodeEvent;
import org.bukkit.event.player.PlayerTeleportEvent;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.plugin.Plugin;
import org.bukkit.Location;
import org.bukkit.Material;
import com.massivecraft.factions.Factions;
import com.massivecraft.factions.entity.MConf;
import com.massivecraft.massivecore.EngineAbstract;
public class EngineExploit extends EngineAbstract
{
// -------------------------------------------- //
// INSTANCE & CONSTRUCT
// -------------------------------------------- //
private static EngineExploit i = new EngineExploit();
public static EngineExploit get() { return i; }
// -------------------------------------------- //
// OVERRIDE
// -------------------------------------------- //
@Override
public Plugin getPlugin()
{
return Factions.get();
}
// -------------------------------------------- //
// OBSIDIAN GENERATORS
// -------------------------------------------- //
@SuppressWarnings("deprecation")
@EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
public void obsidianGenerators(BlockFromToEvent event)
{
if (!MConf.get().handleExploitObsidianGenerators) return;
// thanks to ObGenBlocker and WorldGuard for this method
Block block = event.getToBlock();
int source = event.getBlock().getTypeId();
int target = block.getTypeId();
if ((target == 55 || target == 132) && (source == 0 || source == 10 || source == 11))
{
block.setType(Material.AIR);
}
}
// -------------------------------------------- //
// ENDER PEARL CLIPPING
// -------------------------------------------- //
@EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
public void enderPearlClipping(PlayerTeleportEvent event)
{
if (!MConf.get().handleExploitEnderPearlClipping) return;
if (event.getCause() != PlayerTeleportEvent.TeleportCause.ENDER_PEARL) return;
// this exploit works when the target location is within 0.31 blocks or so of a door or glass block or similar...
Location target = event.getTo();
Location from = event.getFrom();
// blocks who occupy less than 1 block width or length wise need to be handled differently
Material mat = event.getTo().getBlock().getType();
if (
((mat == Material.THIN_GLASS || mat == Material.IRON_FENCE) && clippingThrough(target, from, 0.65))
|| ((mat == Material.FENCE || mat == Material.NETHER_FENCE) && clippingThrough(target, from, 0.45))
)
{
event.setTo(from);
return;
}
// simple fix otherwise: ender pearl target locations are standardized to be in the center (X/Z) of the target block, not at the edges
target.setX(target.getBlockX() + 0.5);
target.setZ(target.getBlockZ() + 0.5);
event.setTo(target);
}
public static boolean clippingThrough(Location target, Location from, double thickness)
{
return
(
(from.getX() > target.getX() && (from.getX() - target.getX() < thickness))
|| (target.getX() > from.getX() && (target.getX() - from.getX() < thickness))
|| (from.getZ() > target.getZ() && (from.getZ() - target.getZ() < thickness))
|| (target.getZ() > from.getZ() && (target.getZ() - from.getZ() < thickness))
);
}
// -------------------------------------------- //
// TNT WATERLOG
// -------------------------------------------- //
// TNT in water/lava doesn't normally destroy any surrounding blocks, which is usually desired behavior.
// But this optional change below provides workaround for waterwalling providing perfect protection,
// and makes cheap (non-obsidian) TNT cannons require minor maintenance between shots.
@SuppressWarnings("deprecation")
@EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
public void tntWaterlog(EntityExplodeEvent event)
{
if (!MConf.get().handleExploitTNTWaterlog) return;
if (!(event.getEntity() instanceof TNTPrimed)) return;
Block center = event.getLocation().getBlock();
if (!center.isLiquid()) return;
// a single surrounding block in all 6 directions is broken if the material is weak enough
List<Block> targets = new ArrayList<Block>();
targets.add(center.getRelative(0, 0, 1));
targets.add(center.getRelative(0, 0, -1));
targets.add(center.getRelative(0, 1, 0));
targets.add(center.getRelative(0, -1, 0));
targets.add(center.getRelative(1, 0, 0));
targets.add(center.getRelative(-1, 0, 0));
for (Block target : targets)
{
int id = target.getTypeId();
// ignore air, bedrock, water, lava, obsidian, enchanting table, etc.... too bad we can't get a blast resistance value through Bukkit yet
if (id != 0 && (id < 7 || id > 11) && id != 49 && id != 90 && id != 116 && id != 119 && id != 120 && id != 130)
{
target.breakNaturally();
}
}
}
}