Examples with SPacketEntityAttach net.minecraft.network.play.server.SPacketEntityAttach used on opensource projects

Example 1 with SPacketEntityAttach

use of net.minecraft.network.play.server.SPacketEntityAttach in project SpongeCommon by SpongePowered.

the class MixinNetHandlerPlayServer method processUseEntity.

/**
 * @author blood - April 5th, 2016
 *
 * @reason Due to all the changes we now do for this packet, it is much easier
 * to read it all with an overwrite. Information detailing on why each change
 * was made can be found in comments below.
 *
 * @param packetIn The entity use packet
 */
@Overwrite
public void processUseEntity(CPacketUseEntity packetIn) {
    // All packets received by server are handled first on the Netty Thread
    if (!SpongeImpl.getServer().isCallingFromMinecraftThread()) {
        if (packetIn.getAction() == CPacketUseEntity.Action.INTERACT) {
            // when INTERACT_AT does not return a successful result.
            return;
        } else {
            // queue packet for main thread
            PacketThreadUtil.checkThreadAndEnqueue(packetIn, (NetHandlerPlayServer) (Object) this, this.player.getServerWorld());
            return;
        }
    }
    // Sponge end
    WorldServer worldserver = this.serverController.getWorld(this.player.dimension);
    Entity entity = packetIn.getEntityFromWorld(worldserver);
    this.player.markPlayerActive();
    if (entity != null) {
        boolean flag = this.player.canEntityBeSeen(entity);
        // 6 blocks
        double d0 = 36.0D;
        if (!flag) {
            // 1.5 blocks
            d0 = 9.0D;
        }
        if (this.player.getDistanceSq(entity) < d0) {
            if (packetIn.getAction() == CPacketUseEntity.Action.INTERACT_AT) {
                // Sponge start - Fire interact events
                EnumHand hand = packetIn.getHand();
                ItemStack itemstack = hand != null ? this.player.getHeldItem(hand) : ItemStack.EMPTY;
                Sponge.getCauseStackManager().addContext(EventContextKeys.USED_ITEM, ItemStackUtil.snapshotOf(itemstack));
                SpongeCommonEventFactory.lastSecondaryPacketTick = this.serverController.getTickCounter();
                // Is interaction allowed with item in hand
                if (SpongeCommonEventFactory.callInteractItemEventSecondary(this.player, itemstack, hand, VecHelper.toVector3d(packetIn.getHitVec()), entity).isCancelled() || SpongeCommonEventFactory.callInteractEntityEventSecondary(this.player, entity, hand, VecHelper.toVector3d(entity.getPositionVector().add(packetIn.getHitVec()))).isCancelled()) {
                    // Restore held item in hand
                    int index = ((IMixinInventoryPlayer) this.player.inventory).getHeldItemIndex(hand);
                    Slot slot = this.player.openContainer.getSlotFromInventory(this.player.inventory, index);
                    sendPacket(new SPacketSetSlot(this.player.openContainer.windowId, slot.slotNumber, itemstack));
                    // which means that we need to force an update
                    if (itemstack.getItem() == Items.LEAD) {
                        // Detach entity again
                        sendPacket(new SPacketEntityAttach(entity, null));
                    } else {
                        // Other cases may involve a specific DataParameter of the entity
                        // We fix the client state by marking it as dirty so it will be updated on the client the next tick
                        DataParameter<?> parameter = findModifiedEntityInteractDataParameter(itemstack, entity);
                        if (parameter != null) {
                            entity.getDataManager().setDirty(parameter);
                        }
                    }
                    return;
                }
                // If INTERACT_AT is not successful, run the INTERACT logic
                if (entity.applyPlayerInteraction(this.player, packetIn.getHitVec(), hand) != EnumActionResult.SUCCESS) {
                    this.player.interactOn(entity, hand);
                }
            // Sponge end
            } else if (packetIn.getAction() == CPacketUseEntity.Action.ATTACK) {
                // Sponge start - Call interact event
                // Will be null in the packet during ATTACK
                EnumHand hand = EnumHand.MAIN_HAND;
                ItemStack itemstack = this.player.getHeldItem(hand);
                SpongeCommonEventFactory.lastPrimaryPacketTick = this.serverController.getTickCounter();
                Vector3d hitVec = null;
                if (packetIn.getHitVec() == null) {
                    final RayTraceResult result = SpongeImplHooks.rayTraceEyes(player, SpongeImplHooks.getBlockReachDistance(player));
                    hitVec = result == null ? null : VecHelper.toVector3d(result.hitVec);
                }
                if (SpongeCommonEventFactory.callInteractItemEventPrimary(this.player, itemstack, hand, hitVec, entity).isCancelled()) {
                    ((IMixinEntityPlayerMP) this.player).restorePacketItem(hand);
                    return;
                }
                if (entity instanceof EntityItem || entity instanceof EntityXPOrb || entity instanceof EntityArrow || entity == this.player) {
                    this.disconnect(new TextComponentTranslation("multiplayer.disconnect.invalid_entity_attacked"));
                    this.serverController.logWarning("Player " + this.player.getName() + " tried to attack an invalid entity");
                    return;
                }
                // Sponge start
                if (entity instanceof Player && !((World) this.player.world).getProperties().isPVPEnabled()) {
                    // PVP is disabled, ignore
                    return;
                }
                if (SpongeCommonEventFactory.callInteractEntityEventPrimary(this.player, entity, hand, hitVec).isCancelled()) {
                    ((IMixinEntityPlayerMP) this.player).restorePacketItem(hand);
                    return;
                }
                // Sponge end
                this.player.attackTargetEntityWithCurrentItem(entity);
            }
        }
    }
}