@EventHandler(ignoreCancelled = true)
public void onBlock(MTEntityDamageByEntityEvent event) {
	if (event.getPlayer().equals(event.getEvent().getDamager())) return; //Player is attacking
	if (event.getEvent().getDamager() instanceof Projectile) return; //Not a melee hit
	if (!event.isBlocking()) return;

	if (!event.getPlayer().hasPermission("minetinker.modifiers.knockback.use")) return;

	ItemStack shield = event.getTool();
	if (!ToolType.SHIELD.contains(shield.getType())) return; //Not the shield

	int level = modManager.getModLevel(shield, this);
	if (level <= 0) return;

	//calculate vector
	Vector vector = event.getEvent().getDamager().getLocation().subtract(event.getPlayer().getLocation()).toVector();
	vector = vector.normalize().multiply(new Vector(1, 0, 1)).add(new Vector(0, 0.2, 0));
	vector = vector.multiply(new Vector(level * 0.2, 1, level * 0.2));

	event.getEntity().setVelocity(vector);
	ChatWriter.logModifier(event.getPlayer(), event, this, shield,
			String.format("Vector(%.2f/%.2f/%.2f)", vector.getX(), vector.getY(), vector.getZ()));
}
 

@EventHandler
public void minecartBreak(VehicleDestroyEvent e) {
    Entity entity = e.getVehicle();
    if (plugin.getLWC().isProtectable(e.getVehicle().getType())) {
        int A = 50000 + entity.getUniqueId().hashCode();
        LWC lwc = LWC.getInstance();
        Protection protection = lwc.getPhysicalDatabase().loadProtection(entity.getWorld().getName(), A, A, A);
        if ((((entity instanceof StorageMinecart)) || ((entity instanceof HopperMinecart)))
                && (protection != null)) {
            if (e.getAttacker() instanceof Projectile) {
                e.setCancelled(true);
            }
            Player p = (Player) e.getAttacker();
            boolean canAccess = lwc.canAccessProtection(p, protection);
            if (canAccess) {
                protection.remove();
                protection.removeAllPermissions();
                protection.removeCache();
                return;
            }
            e.setCancelled(true);
        }
    }
}
 

@Repeatable(scope = MatchScope.RUNNING)
public void tick() {
    EntityUtils.entities(match.getWorld(), Projectile.class)
         .filter(projectile -> projectile.hasMetadata(TRAIL_META))
         .forEach(projectile -> {
             if(projectile.isDead() || projectile.isOnGround()) {
                 projectile.removeMetadata(TRAIL_META, PGM.get());
             } else {
                 final Color color = (Color) projectile.getMetadata(TRAIL_META, PGM.get()).value();
                 // Certain particles can have a specific color if:
                 // - Count is 0
                 // - Speed is 1
                 // - Delta vectors are RGB values from (0,1]
                 match.getWorld().spawnParticle(
                     Particle.REDSTONE,
                     projectile.getLocation(),
                     0,
                     rgbToParticle(color.getRed()),
                     rgbToParticle(color.getGreen()),
                     rgbToParticle(color.getBlue()),
                     1
                 );
             }
         });
}
 

private void handleArrow(EntityDamageByEntityEvent event){

		PlayersManager pm = GameManager.getGameManager().getPlayersManager();
		
		if(event.getEntity() instanceof Player && event.getDamager() instanceof Arrow){
			Projectile arrow = (Projectile) event.getDamager();
			final Player shot = (Player) event.getEntity();
			if(arrow.getShooter() instanceof Player){
				
				if(!GameManager.getGameManager().getPvp()){
					event.setCancelled(true);
					return;
				}

				UhcPlayer uhcDamager = pm.getUhcPlayer((Player) arrow.getShooter());
				UhcPlayer uhcDamaged = pm.getUhcPlayer(shot);

				if(!friendlyFire && uhcDamager.getState().equals(PlayerState.PLAYING) && uhcDamager.isInTeamWith(uhcDamaged)){
					uhcDamager.sendMessage(Lang.PLAYERS_FF_OFF);
					event.setCancelled(true);
				}
			}
		}
	}
 

@Nullable
public static Object getShooter(final @Nullable Projectile p) {
	if (p == null)
		return null;
	try {
		return getShooter.invoke(p);
	} catch (final IllegalAccessException e) {
		assert false;
		return null;
	} catch (final IllegalArgumentException e) {
		assert false;
		return null;
	} catch (final InvocationTargetException e) {
		Skript.exception(e);
		return null;
	}
}
 

@Test
public void shouldAllowProjectileLaunchFromAuthedHuman() {
    // given
    Projectile projectile = mock(Projectile.class);
    Player player = mock(Player.class);
    given(projectile.getShooter()).willReturn(player);
    ProjectileLaunchEvent event = mock(ProjectileLaunchEvent.class);
    given(event.getEntity()).willReturn(projectile);
    given(listenerService.shouldCancelEvent(player)).willReturn(false);

    // when
    listener.onProjectileLaunch(event);

    // then
    verify(listenerService).shouldCancelEvent(player);
    verify(event, never()).setCancelled(anyBoolean());
}
 

@Override
public Relation compare(final DamageCause dc, final EntityData e) {
	switch (dc) {
		case ENTITY_ATTACK:
			return Relation.get(e.isSupertypeOf(EntityData.fromClass(Entity.class)));
		case PROJECTILE:
			return Relation.get(e.isSupertypeOf(EntityData.fromClass(Projectile.class)));
		case WITHER:
			return Relation.get(e.isSupertypeOf(EntityData.fromClass(Wither.class)));
		case FALLING_BLOCK:
			return Relation.get(e.isSupertypeOf(EntityData.fromClass(FallingBlock.class)));
			//$CASES-OMITTED$
		default:
			return Relation.NOT_EQUAL;
	}
}
 

@EventHandler
public void onEntityExplodes(EntityExplodeEvent event) {
    if (event.isCancelled()) {
        return;
    }
    if (!SentinelPlugin.instance.preventExplosionBlockDamage) {
        return;
    }
    if (event.getEntity() instanceof Projectile) {
         ProjectileSource source = ((Projectile) event.getEntity()).getShooter();
         if (source instanceof Entity) {
             SentinelTrait sourceSentinel = SentinelUtilities.tryGetSentinel((Entity) source);
             if (sourceSentinel != null) {
                 event.blockList().clear();
             }
         }
    }
}
 

@EventHandler
public void onBlockIgnites(BlockIgniteEvent event) {
    if (event.isCancelled()) {
        return;
    }
    if (!SentinelPlugin.instance.preventExplosionBlockDamage) {
        return;
    }
    if (event.getIgnitingEntity() instanceof Projectile) {
        ProjectileSource source = ((Projectile) event.getIgnitingEntity()).getShooter();
        if (source instanceof Entity) {
            SentinelTrait sourceSentinel = SentinelUtilities.tryGetSentinel((Entity) source);
            if (sourceSentinel != null) {
                event.setCancelled(true);
            }
        }
    }
}
 

@EventHandler(ignoreCancelled = true)
public void onDamagePlayer(ProjectileHitEvent event) {
    if (event.getHitEntity() instanceof Player) {

        Player player = (Player) event.getHitEntity();
        Projectile projectile = event.getEntity();
        Region r = RedProtect.get().rm.getTopRegion(projectile.getLocation());

        double damage;
        if (getConfig().getString("projectile-damage").endsWith("%")) {
            damage = (player.getAttribute(Attribute.GENERIC_MAX_HEALTH).getBaseValue() / 100) * Double.valueOf(getConfig().getString("projectile-damage", "100%").replace("%", ""));
        } else {
            damage = getConfig().getInt("projectile-damage");
        }

        if (r != null && r.getFlagBool("killer-projectiles") && getConfig().getStringList("allowed-types").contains(projectile.getType().name())) {
            player.setHealth(damage);
        }
    }
}
 

@EventHandler
public void projectileLaunch(ProjectileLaunchEvent e) {
	 Projectile projectile = e.getEntity();
	 if (projectile instanceof Snowball || projectile instanceof Egg || projectile instanceof Arrow) {
		 if (projectile.getShooter() instanceof Player) {
			 Player player = (Player) projectile.getShooter();
			 GameMap gMap = MatchManager.get().getPlayerMap(player);
			 if (gMap != null) {
			 	PlayerStat ps = PlayerStat.getPlayerStats(player.getUniqueId());
			 	if (ps != null) {
                       String key = ps.getProjectileEffect();
                       ProjectileEffectOption peo = (ProjectileEffectOption) ProjectileEffectOption.getPlayerOptionByKey(key);
                       if (peo != null) {
                           List<ParticleEffect> effects = peo.getEffects();
                           if (key != null && effects != null) {
                               if (!key.equalsIgnoreCase("none")) {
                                   SkyWarsReloaded.getOM().addProjectile(projectile, effects);
                               }
                           }
                       }
                   }
			 }
		 }
	 }
}
 

@EventHandler(priority = EventPriority.LOW, ignoreCancelled=true)
public void onLingeringPotionSplash(final LingeringPotionSplashEvent e) {
    if (!IslandGuard.inWorld(e.getEntity().getLocation())) {
        return;
    }
    // Try to get the shooter
    Projectile projectile = (Projectile) e.getEntity();
    if (projectile.getShooter() != null && projectile.getShooter() instanceof Player) {
        UUID uuid = ((Player)projectile.getShooter()).getUniqueId();
        // Store it and remove it when the effect is gone
        thrownPotions.put(e.getAreaEffectCloud().getEntityId(), uuid);
        plugin.getServer().getScheduler().runTaskLater(plugin, new Runnable() {

            @Override
            public void run() {
                thrownPotions.remove(e.getAreaEffectCloud().getEntityId());

            }}, e.getAreaEffectCloud().getDuration());
    }
}
 

@EventHandler(priority = EventPriority.LOW, ignoreCancelled = true)
public void onItemFrameDamage(final EntityDamageByEntityEvent e) {
    // Check world
    if (!inWorld(e.getEntity()) || !(e.getEntity() instanceof ItemFrame)) {
        return;
    }
    if (e.getDamager() instanceof Projectile) {
        if (DEBUG)
            plugin.getLogger().info("DEBUG: Projectile damage to itemframe");
        // Find out who fired the arrow
        Projectile p = (Projectile) e.getDamager();
        if (DEBUG)
            plugin.getLogger().info("DEBUG: Shooter is " + p.getShooter().toString());
        if (p.getShooter() instanceof Skeleton || p.getShooter() instanceof Golem) {
            if (DEBUG)
                plugin.getLogger().info("DEBUG: Shooter is mob");
            if (!Settings.allowMobDamageToItemFrames) {
                if (DEBUG)
                    plugin.getLogger().info("DEBUG: Damage not allowed, cancelling");
                e.setCancelled(true);
            }
        }
    }
}
 

@Override
public void effect(Event e, ItemStack item, final int level) {
	if(e instanceof EntityDamageByEntityEvent) {
	EntityDamageByEntityEvent event = (EntityDamageByEntityEvent) e;
	Entity target = event.getEntity();
	
	if(!(target instanceof Player))
		return;
	
	Player p = (Player) ((Projectile) event.getDamager()).getShooter();
	
	Material bountyDrop = getBounty();
	
	for(int i = 10; i>0; i--) {
		p.getWorld().playEffect(p.getLocation(), Effect.COLOURED_DUST, 10);
		p.getWorld().playEffect(target.getLocation(), Effect.COLOURED_DUST, 10);
	}
	
	p.getInventory().addItem(new ItemStack(bountyDrop, Tools.random.nextInt(MaximumBounty+level)+1));
	p.sendMessage(ChatColor.GOLD + "You have collected a bounty on " + target.getName() + "!");
	this.generateCooldown(p, Cooldown);
	
	}
}
 

@EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
public void EntityDamageByEntityEvent(EntityDamageByEntityEvent e) {

    Entity damager = e.getDamager();
    Entity damaged = e.getEntity();
    

    // Block self damaging (Enderpearls cause weird behavior)
    if (damager.getUniqueId().equals(damaged.getUniqueId()))
        return;

    if (damaged instanceof Player)
        CEventHandler.handleEvent((Player) damaged, e, damageTaken);

    if (damager instanceof Player)
        CEventHandler.handleEvent((Player) damager, e, damageGiven);
    else if (damager instanceof Arrow)
        if (damager.hasMetadata("ce.bow.item") || damager.hasMetadata("ce.bow.enchantment"))
            CEventHandler.handleBows((Player) ((Projectile) damager).getShooter(), e);

}
 

@EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
public void onEntityDamage(EntityDamageByEntityEvent event) {
    if (!(event.getEntity() instanceof Player)) return;
    Player player = (Player) event.getEntity();
    double finalHealth = player.getHealth() - event.getFinalDamage();
    if (finalHealth > 0.01) return;
    player.setMaxHealth(20);
    player.setHealth(player.getMaxHealth());
    event.setDamage(1);
    player.setLastDamageCause(event);
    if (event.getActor() instanceof Player) {
        killPlayer(player, (Player)event.getActor(), event.getCause());
    } else if (event.getActor() instanceof Projectile && ((Projectile) event.getActor()).getShooter() instanceof Player) {
        killPlayer(player, (Player)((Projectile) event.getActor()).getShooter(), event.getCause());
    } else {
        killPlayer(player, null, event.getCause());
    }
}
 

@EventHandler(priority = EventPriority.NORMAL)
public void onHit(EntityDamageByEntityEvent event) {
  final Entity damager = event.getDamager();
  if (!event.isCancelled()
      || event.getCause() != EntityDamageEvent.DamageCause.PROJECTILE
      || !(damager instanceof Projectile)
      || !damager.hasMetadata(METADATA_KEY)) return;

  final Player shooter = (Player) ((Projectile) damager).getShooter();
  if (match.getParticipant(shooter) == null) return;

  damager.remove();
  shooter.getInventory().addItem(new ItemStack(Material.ARROW));
}
 

@Override
public void onEvent(EntityDamageEvent event) {
  super.onEvent(event);

  if (event.getEntity() == this.labelEntity) {
    event.setCancelled(true);

    if (event instanceof EntityDamageByEntityEvent
        && ((EntityDamageByEntityEvent) event).getDamager() instanceof Projectile) {
      ((EntityDamageByEntityEvent) event).getDamager().remove();
    }
  }
}
 

@EventHandler
public void onShoot(ProjectileLaunchEvent event) {
	if (!this.isAllowed()) return;

	Projectile arrow = event.getEntity();
	if (!(arrow instanceof Arrow)) return;

	if (!(arrow.getShooter() instanceof Player)) return;

	Player player = (Player) arrow.getShooter();
	if (!player.hasPermission("minetinker.modifiers.infinity.use")) return;

	ItemStack tool = player.getInventory().getItemInMainHand();

	if (!ToolType.CROSSBOW.contains(tool.getType())) return;

	if (!modManager.isToolViable(tool)) return;

	if (!modManager.hasMod(tool, this)) return;

	if(!((Arrow) arrow).hasCustomEffects()) {
		if (player.getInventory().addItem(new ItemStack(Material.ARROW, 1)).size() != 0) { //adds items to (full) inventory
			player.getWorld().dropItem(player.getLocation(), new ItemStack(Material.ARROW, 1)); //drops item when inventory is full
		} // no else as it gets added in if

		((Arrow) arrow).setPickupStatus(AbstractArrow.PickupStatus.CREATIVE_ONLY);
		ChatWriter.logModifier(player, event, this, tool);
	}
}
 

@EventHandler(priority = EventPriority.LOW)
public void onEntityDamageEvent(EntityDamageByEntityEvent event) {
    if (!enabled) return;
    if (event.getDamager() instanceof Projectile && ((Projectile) event.getDamager()).getShooter() == event.getEntity()){
        event.setCancelled(true);
    }
}
 

@EventHandler
public void onEntityShootBowEvent(EntityShootBowEvent event) {
    if (!projectile.equals(EntityType.ARROW) || velocityMod != 1.0) {
        Vector vector = event.getProjectile().getVelocity();
        event.setProjectile(GameHandler.getGameHandler().getMatchWorld().spawnEntity(event.getProjectile().getLocation(), projectile));
        ((Projectile) event.getProjectile()).setShooter(event.getEntity());
        event.getProjectile().setVelocity(vector.multiply(velocityMod));
        event.getProjectile().setMetadata("custom", new FixedMetadataValue(GameHandler.getGameHandler().getPlugin(), true));
    }
}
 

private void createParticlesFor(Projectile projectile, Player player) {
    TeamModule team = Teams.getTeamByPlayer(player).orNull();
    if (team != null) {
        ProjectileParticleRunnable runnable = new ProjectileParticleRunnable(projectile, team.getColor());
        int newTask = Bukkit.getScheduler().scheduleSyncRepeatingTask(Cardinal.getInstance(), runnable, 1L, 1L);
        runnable.setTask(newTask);
        tasks.add(newTask);
    }
}
 

@EventHandler
public void onEntityHitByProjectile(EntityDamageByEntityEvent event) {
    if (event.isCancelled()) return;
    if (event.getCause().equals(DamageCause.PROJECTILE)) {
        ProjectileSource source = ((Projectile) event.getDamager()).getShooter();
        if (source instanceof Player) {
            ((Player) source).playSound(((Player) source).getLocation(), Sound.ENTITY_ARROW_HIT_PLAYER, 0.2F, 0.5F);
        }
        if (event.getDamager().getType().equals(projectile) && event.getDamager().hasMetadata("custom")) {
            Entity arrow = event.getEntity().getWorld().spawnEntity(event.getDamager().getLocation(), EntityType.ARROW);
            ((Projectile) arrow).setShooter(source);
            arrow.setVelocity(event.getDamager().getVelocity());
            event.getDamager().remove();
            if (event.getEntity() instanceof LivingEntity) {
                for (PotionEffect effect : potionEffects) {
                    ((LivingEntity) event.getEntity()).addPotionEffect(effect);
                }
                final Entity entity = event.getEntity();
                Bukkit.getServer().getScheduler().runTaskLater(GameHandler.getGameHandler().getPlugin(), new Runnable() {
                    @Override
                    public void run() {
                        ((LivingEntity) entity).setArrowsStuck(((LivingEntity) entity).getArrowsStuck() - 1);
                    }
                }, 0);
            }
        }
    }
}
 

public static Player getAttackerInDamageEvent(EntityDamageByEntityEvent e) {
    if (e.getDamager() instanceof Player) {
        return (Player) e.getDamager();
    } else if (e.getDamager() instanceof Projectile && ((Projectile) e.getDamager()).getShooter() instanceof Player) {
        return (Player) ((Projectile) e.getDamager()).getShooter();
    } else {
        return null;
    }
}
 

@EventHandler
public void hangingBreakByEvent(HangingBreakByEntityEvent event) {
    Entity entity = event.getEntity();
    if (plugin.getLWC().isProtectable(event.getEntity().getType())) {
        int A = 50000 + entity.getUniqueId().hashCode();
        LWC lwc = LWC.getInstance();
        Protection protection = lwc.getPhysicalDatabase().loadProtection(entity.getWorld().getName(), A, A, A);
        if (event.getRemover() instanceof Projectile && protection != null) {
            event.setCancelled(true);
        }
        if (event.getRemover() instanceof Player) {
            Player p = (Player) event.getRemover();
            if (p.hasPermission("lwc.lockentity." + entity.getType()) || p.hasPermission("lwc.lockentity.all")) {
                if (onPlayerEntityInteract(p, entity, event.isCancelled())) {
                    event.setCancelled(true);
                }
            }
            if (!event.isCancelled() && protection != null) {
                boolean canAccess = lwc.canAccessProtection(p, protection);
                if (canAccess) {
                    protection.remove();
                    protection.removeAllPermissions();
                    protection.removeCache();
                    return;
                }
                event.setCancelled(true);
            }
        }
    }
}
 

@EventHandler
public void itemFrameItemRemoval(EntityDamageByEntityEvent e) {
    if (e.isCancelled())
        return;
    Entity entity = e.getEntity();
    if (plugin.getLWC().isProtectable(e.getEntity().getType())) {
        int A = 50000 + entity.getUniqueId().hashCode();
        LWC lwc = LWC.getInstance();
        Protection protection = lwc.getPhysicalDatabase().loadProtection(entity.getWorld().getName(), A, A, A);
        if (!(entity instanceof Player)) {
            if (e.getDamager() instanceof Projectile) {
                if (protection != null) {
                    e.setCancelled(true);
                }
                if ((((entity instanceof StorageMinecart)) || ((entity instanceof HopperMinecart)))
                        && (protection != null)) {
                    e.setCancelled(true);
                }
            }
            if (e.getDamager() instanceof Player) {
                Player p = (Player) e.getDamager();
                if (protection != null && !lwc.canAccessProtection(p, protection)) {
                    e.setCancelled(true);
                }
                if (p.hasPermission("lwc.lockentity." + e.getEntityType())
                        || p.hasPermission("lwc.lockentity.all")) {
                    if (onPlayerEntityInteract(p, entity, e.isCancelled())) {
                        e.setCancelled(true);
                    }
                }
                if ((((entity instanceof StorageMinecart)) || ((entity instanceof HopperMinecart)))
                        && (protection != null)) {
                    e.setCancelled(true);
                }
            }
        }
    }
}
 

@Override
public void onEvent(EntityDamageEvent event) {
    super.onEvent(event);

    if(event.getEntity() == this.labelEntity) {
        event.setCancelled(true);

        if(event instanceof EntityDamageByEntityEvent && ((EntityDamageByEntityEvent) event).getDamager() instanceof Projectile) {
            ((EntityDamageByEntityEvent) event).getDamager().remove();
        }
    }
}
 

@EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
public void onProjectileLaunch(ProjectileLaunchEvent event) {
    match.player(event.getActor()).ifPresent(shooter -> {
        final Projectile projectile = event.getEntity();
        projectile.setMetadata(TRAIL_META, new FixedMetadataValue(PGM.get(), shooter.getParty().getFullColor()));
        // Set critical metadata to false in order to remove default particle trail.
        // The metadata will be restored just before the arrow hits something.
        if(projectile instanceof Arrow) {
            final Arrow arrow = (Arrow) projectile;
            arrow.setMetadata(CRITICAL_META, new FixedMetadataValue(PGM.get(), arrow.isCritical()));
            arrow.setCritical(false);
        }
    });
}
 

@EventHandler(priority = EventPriority.LOWEST, ignoreCancelled = true)
public void onProjectileHit(ProjectileHitEvent event) {
    match.player(event.getActor()).ifPresent(shooter -> {
        final Projectile projectile = event.getEntity();
        projectile.removeMetadata(TRAIL_META, PGM.get());
        // Restore critical metadata to arrows if applicable
        if(projectile instanceof Arrow) {
            final Arrow arrow = (Arrow) projectile;
            if(arrow.hasMetadata(CRITICAL_META)) {
                arrow.setCritical(arrow.getMetadata(CRITICAL_META, PGM.get()).asBoolean());
            }
        }
    });
}
 

@EventHandler
public void onProjectileHitEvent(ProjectileHitEvent event) {
    final Projectile projectile = event.getEntity();
    final ProjectileDefinition projectileDefinition = Projectiles.getProjectileDefinition(projectile);
    if(projectileDefinition == null) return;

    final Filter filter = projectileDefinition.destroyFilter();
    if(filter == null) return;

    final BlockIterator blockIterator = new BlockIterator(projectile.getWorld(), projectile.getLocation().toVector(), projectile.getVelocity().normalize(), 0d, 2);
    Block hitBlock = null;
    while(blockIterator.hasNext()) {
        hitBlock = blockIterator.next();
        if(hitBlock.getType() != Material.AIR) break;
    }

    if(hitBlock != null) {
        final MatchPlayer shooter = projectile.getShooter() instanceof Player ? getMatch().getPlayer((Player) projectile.getShooter()) : null;
        final IQuery query = shooter != null ? new PlayerBlockEventQuery(shooter, event, hitBlock.getState())
                                             : new BlockEventQuery(event, hitBlock);

        if(filter.query(query).isAllowed()) {
            final BlockTransformEvent bte = new BlockTransformEvent(event, hitBlock, Material.AIR);
            match.callEvent(bte);

            if(!bte.isCancelled()) {
                hitBlock.setType(Material.AIR);
                projectile.remove();
            }
        }
    }
}