Factions/src/com/massivecraft/factions/engine/EngineFlagExplosion.java

132 lines
4.2 KiB
Java

package com.massivecraft.factions.engine;
import com.massivecraft.factions.entity.BoardColl;
import com.massivecraft.factions.entity.Faction;
import com.massivecraft.factions.util.EnumerationUtil;
import com.massivecraft.massivecore.Engine;
import com.massivecraft.massivecore.ps.PS;
import org.bukkit.Location;
import org.bukkit.block.Block;
import org.bukkit.entity.Entity;
import org.bukkit.entity.Wither;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.entity.EntityChangeBlockEvent;
import org.bukkit.event.entity.EntityDamageEvent;
import org.bukkit.event.entity.EntityDamageEvent.DamageCause;
import org.bukkit.event.entity.EntityExplodeEvent;
import org.bukkit.event.hanging.HangingBreakEvent;
import org.bukkit.event.hanging.HangingBreakEvent.RemoveCause;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
public class EngineFlagExplosion extends Engine
{
// -------------------------------------------- //
// INSTANCE & CONSTRUCT
// -------------------------------------------- //
private static EngineFlagExplosion i = new EngineFlagExplosion();
public static EngineFlagExplosion get() { return i; }
// -------------------------------------------- //
// FLAG: EXPLOSIONS
// -------------------------------------------- //
protected Set<DamageCause> DAMAGE_CAUSE_EXPLOSIONS = EnumSet.of(DamageCause.BLOCK_EXPLOSION, DamageCause.ENTITY_EXPLOSION);
@EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
public void blockExplosion(HangingBreakEvent event)
{
// If a hanging entity was broken by an explosion ...
if (event.getCause() != RemoveCause.EXPLOSION) return;
Entity entity = event.getEntity();
// ... and the faction there has explosions disabled ...
Faction faction = BoardColl.get().getFactionAt(PS.valueOf(entity.getLocation()));
if (faction.isExplosionsAllowed()) return;
// ... then cancel.
event.setCancelled(true);
}
@EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
public void blockExplosion(EntityDamageEvent event)
{
// If an explosion damages ...
if ( ! DAMAGE_CAUSE_EXPLOSIONS.contains(event.getCause())) return;
// ... an entity that is modified on damage ...
if ( ! EnumerationUtil.isEntityTypeEditOnDamage(event.getEntityType())) return;
// ... and the faction has explosions disabled ...
if (BoardColl.get().getFactionAt(PS.valueOf(event.getEntity())).isExplosionsAllowed()) return;
// ... 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;
// 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)
{
event.setCancelled(true);
return;
}
faction2allowed.put(faction, allowed);
// Individually check the flag state for each block
Iterator<Block> iter = event.blockList().iterator();
while (iter.hasNext())
{
Block block = iter.next();
faction = BoardColl.get().getFactionAt(PS.valueOf(block));
allowed = faction2allowed.get(faction);
if (allowed == null)
{
allowed = faction.isExplosionsAllowed();
faction2allowed.put(faction, allowed);
}
if (allowed == false) iter.remove();
}
}
@EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
public void blockExplosion(EntityChangeBlockEvent event)
{
// If a wither is changing a block ...
Entity entity = event.getEntity();
if (!(entity instanceof Wither)) return;
// ... and the faction there has explosions disabled ...
PS ps = PS.valueOf(event.getBlock());
Faction faction = BoardColl.get().getFactionAt(ps);
if (faction.isExplosionsAllowed()) return;
// ... stop the block alteration.
event.setCancelled(true);
}
}