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Protect against BlockExplodeEvent

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This commit is contained in:
Olof Larsson
2017-10-11 08:42:11 +02:00
parent 76c4b7f865
commit 72b7a6a4ac
3 changed files with 111 additions and 20 deletions
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45
src/com/massivecraft/factions/engine/EngineFlagExplosion.java
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@@ -9,6 +9,7 @@ import org.bukkit.Location;
import org.bukkit.block.Block;
import org.bukkit.entity.Entity;
import org.bukkit.entity.Wither;
import org.bukkit.event.Cancellable;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.entity.EntityChangeBlockEvent;
@@ -18,9 +19,11 @@ import org.bukkit.event.entity.EntityExplodeEvent;
import org.bukkit.event.hanging.HangingBreakEvent;
import org.bukkit.event.hanging.HangingBreakEvent.RemoveCause;
import java.util.Collection;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
@@ -69,36 +72,38 @@ public class EngineFlagExplosion extends Engine
// ... then cancel!
event.setCancelled(true);
}
@EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
public void blockExplosion(EntityExplodeEvent event)
{
// Prepare some variables:
// Current faction
Faction faction = null;
// Current allowed
Boolean allowed = true;
Location location = event.getLocation();
Cancellable cancellable = event;
Collection<Block> blocks = event.blockList();
blockExplosion(location, cancellable, blocks);
}
// Note that this method is used by EngineV18 for the BlockExplodeEvent
public void blockExplosion(Location location, Cancellable cancellable, Collection<Block> blocks)
{
// Caching to speed things up.
Map<Faction, Boolean> faction2allowed = new HashMap<>();
// If an explosion occurs at a location ...
Location location = event.getLocation();
// Check the entity. Are explosions disabled there?
faction = BoardColl.get().getFactionAt(PS.valueOf(location));
allowed = faction.isExplosionsAllowed();
if (allowed == false)
Faction faction = BoardColl.get().getFactionAt(PS.valueOf(location));
Boolean allowed = faction.isExplosionsAllowed();
if (!allowed)
{
event.setCancelled(true);
cancellable.setCancelled(true);
return;
}
faction2allowed.put(faction, allowed);
// Individually check the flag state for each block
Iterator<Block> iter = event.blockList().iterator();
while (iter.hasNext())
Iterator<Block> iterator = blocks.iterator();
while (iterator.hasNext())
{
Block block = iter.next();
Block block = iterator.next();
faction = BoardColl.get().getFactionAt(PS.valueOf(block));
allowed = faction2allowed.get(faction);
if (allowed == null)
@@ -106,8 +111,8 @@ public class EngineFlagExplosion extends Engine
allowed = faction.isExplosionsAllowed();
faction2allowed.put(faction, allowed);
}
if (allowed == false) iter.remove();
if (!allowed) iterator.remove();
}
}