Examples with CPacketPlayer net.minecraft.network.play.client.CPacketPlayer used on opensource projects

Example 1 with CPacketPlayer

use of net.minecraft.network.play.client.CPacketPlayer in project Wurst-MC-1.12 by Wurst-Imperium.

the class BlinkMod method onSentPacket.

@Override
public void onSentPacket(PacketOutputEvent event) {
    if (!(event.getPacket() instanceof CPacketPlayer))
        return;
    event.cancel();
    CPacketPlayer packet = (CPacketPlayer) event.getPacket();
    CPacketPlayer prevPacket = packets.peekLast();
    if (prevPacket != null && packet.isOnGround() == prevPacket.isOnGround() && packet.getYaw(-1) == prevPacket.getYaw(-1) && packet.getPitch(-1) == prevPacket.getPitch(-1) && packet.getX(-1) == prevPacket.getX(-1) && packet.getY(-1) == prevPacket.getY(-1) && packet.getZ(-1) == prevPacket.getZ(-1))
        return;
    packets.addLast(packet);
}

Example 2 with CPacketPlayer

use of net.minecraft.network.play.client.CPacketPlayer in project Wurst-MC-1.12 by Wurst-Imperium.

the class JesusMod method onSentPacket.

@Override
public void onSentPacket(PacketOutputEvent event) {
    // check packet type
    if (!(event.getPacket() instanceof CPacketPlayer))
        return;
    CPacketPlayer packet = (CPacketPlayer) event.getPacket();
    // check if packet contains a position
    if (!(packet instanceof CPacketPlayer.Position || packet instanceof CPacketPlayer.PositionRotation))
        return;
    // check inWater
    if (WMinecraft.getPlayer().isInWater())
        return;
    // check fall distance
    if (WMinecraft.getPlayer().fallDistance > 3F)
        return;
    if (!isOverLiquid())
        return;
    // if not actually moving, cancel packet
    if (WMinecraft.getPlayer().movementInput == null) {
        event.cancel();
        return;
    }
    // wait for timer
    packetTimer++;
    if (packetTimer < 4)
        return;
    // cancel old packet
    event.cancel();
    // get position
    double x = packet.getX(0);
    double y = packet.getY(0);
    double z = packet.getZ(0);
    // offset y
    if (WMinecraft.getPlayer().ticksExisted % 2 == 0)
        y -= 0.05;
    else
        y += 0.05;
    // create new packet
    Packet newPacket;
    if (packet instanceof CPacketPlayer.Position)
        newPacket = new CPacketPlayer.Position(x, y, z, true);
    else
        newPacket = new CPacketPlayer.PositionRotation(x, y, z, packet.getYaw(0), packet.getPitch(0), true);
    // send new packet
    WConnection.sendPacketBypass(newPacket);
}

Example 3 with CPacketPlayer

use of net.minecraft.network.play.client.CPacketPlayer in project SpongeCommon by SpongePowered.

the class MixinNetHandlerPlayServer method throwMoveEvent.

/**
 * @author gabizou - June 22nd, 2016
 * @reason Sponge has to throw the movement events before we consider moving the player and there's
 * no clear way to go about it with the target position being null and the last position update checks.
 * @param packetIn
 */
@Redirect(method = "processPlayer", at = @At(value = "FIELD", target = "Lnet/minecraft/entity/player/EntityPlayerMP;queuedEndExit:Z"))
private boolean throwMoveEvent(EntityPlayerMP playerMP, CPacketPlayer packetIn) {
    if (!playerMP.queuedEndExit) {
        // We don't fire an event to avoid confusing plugins.
        if (!packetIn.moving && !packetIn.rotating) {
            return playerMP.queuedEndExit;
        }
        // Sponge Start - Movement event
        Player player = (Player) this.player;
        IMixinEntityPlayerMP mixinPlayer = (IMixinEntityPlayerMP) this.player;
        Vector3d fromrot = player.getRotation();
        // If Sponge used the player's current location, the delta might never be triggered which could be exploited
        Location<World> from = player.getLocation();
        if (this.lastMoveLocation != null) {
            from = this.lastMoveLocation;
        }
        Vector3d torot = new Vector3d(packetIn.pitch, packetIn.yaw, 0);
        Location<World> to = new Location<>(player.getWorld(), packetIn.x, packetIn.y, packetIn.z);
        // Minecraft sends a 0, 0, 0 position when rotation only update occurs, this needs to be recognized and corrected
        boolean rotationOnly = !packetIn.moving && packetIn.rotating;
        if (rotationOnly) {
            // Correct the to location so it's not misrepresented to plugins, only when player rotates without moving
            // In this case it's only a rotation update, which isn't related to the to location
            from = player.getLocation();
            to = from;
        }
        // Minecraft does the same with rotation when it's only a positional update
        boolean positionOnly = packetIn.moving && !packetIn.rotating;
        if (positionOnly) {
            // Correct the new rotation to match the old rotation
            torot = fromrot;
        }
        ((IMixinEntityPlayerMP) this.player).setVelocityOverride(to.getPosition().sub(from.getPosition()));
        double deltaSquared = to.getPosition().distanceSquared(from.getPosition());
        double deltaAngleSquared = fromrot.distanceSquared(torot);
        // eventually it would be nice to not have them
        if (deltaSquared > ((1f / 16) * (1f / 16)) || deltaAngleSquared > (.15f * .15f)) {
            Transform<World> fromTransform = player.getTransform().setLocation(from).setRotation(fromrot);
            Transform<World> toTransform = player.getTransform().setLocation(to).setRotation(torot);
            Sponge.getCauseStackManager().pushCause(player);
            MoveEntityEvent event = SpongeEventFactory.createMoveEntityEvent(Sponge.getCauseStackManager().getCurrentCause(), fromTransform, toTransform, player);
            SpongeImpl.postEvent(event);
            Sponge.getCauseStackManager().popCause();
            if (event.isCancelled()) {
                mixinPlayer.setLocationAndAngles(fromTransform);
                this.lastMoveLocation = from;
                ((IMixinEntityPlayerMP) this.player).setVelocityOverride(null);
                return true;
            } else if (!event.getToTransform().equals(toTransform)) {
                mixinPlayer.setLocationAndAngles(event.getToTransform());
                this.lastMoveLocation = event.getToTransform().getLocation();
                ((IMixinEntityPlayerMP) this.player).setVelocityOverride(null);
                return true;
            } else if (!from.equals(player.getLocation()) && this.justTeleported) {
                this.lastMoveLocation = player.getLocation();
                // Prevent teleports during the move event from causing odd behaviors
                this.justTeleported = false;
                ((IMixinEntityPlayerMP) this.player).setVelocityOverride(null);
                return true;
            } else {
                this.lastMoveLocation = event.getToTransform().getLocation();
            }
            this.resendLatestResourcePackRequest();
        }
    }
    return playerMP.queuedEndExit;
}

Example 4 with CPacketPlayer

use of net.minecraft.network.play.client.CPacketPlayer in project SpongeCommon by SpongePowered.

the class PacketUtil method onProcessPacket.

@SuppressWarnings({ "rawtypes", "unchecked", "unused" })
public static void onProcessPacket(Packet packetIn, INetHandler netHandler) {
    if (netHandler instanceof NetHandlerPlayServer) {
        try (CauseStackManager.StackFrame frame = Sponge.getCauseStackManager().pushCauseFrame()) {
            EntityPlayerMP packetPlayer = ((NetHandlerPlayServer) netHandler).player;
            Sponge.getCauseStackManager().pushCause(packetPlayer);
            // If true, logic was handled in Pre so return
            if (firePreEvents(packetIn, packetPlayer)) {
                return;
            }
            boolean ignoreCreative = false;
            // } else
            if (creativeCheck(packetIn, packetPlayer)) {
                long packetDiff = System.currentTimeMillis() - lastInventoryOpenPacketTimeStamp;
                // If the time between packets is small enough, mark the current packet to be ignored for our event handler.
                if (packetDiff < 100) {
                    ignoreCreative = true;
                }
            }
            // Don't process movement capture logic if player hasn't moved
            boolean ignoreMovementCapture = false;
            if (packetIn instanceof CPacketPlayer) {
                CPacketPlayer movingPacket = ((CPacketPlayer) packetIn);
                if (movingPacket instanceof CPacketPlayer.Rotation) {
                    ignoreMovementCapture = true;
                } else if (packetPlayer.posX == movingPacket.x && packetPlayer.posY == movingPacket.y && packetPlayer.posZ == movingPacket.z) {
                    ignoreMovementCapture = true;
                }
            }
            if (ignoreMovementCapture || (packetIn instanceof CPacketClientSettings)) {
                packetIn.processPacket(netHandler);
            } else {
                final ItemStackSnapshot cursor = ItemStackUtil.snapshotOf(packetPlayer.inventory.getItemStack());
                final PhaseTracker phaseTracker = PhaseTracker.getInstance();
                IPhaseState<? extends PacketContext<?>> packetState = TrackingPhases.PACKET.getStateForPacket(packetIn);
                if (packetState == null) {
                    throw new IllegalArgumentException("Found a null packet phase for packet: " + packetIn.getClass());
                }
                PhaseContext<?> context = EMPTY;
                if (!TrackingPhases.PACKET.isPacketInvalid(packetIn, packetPlayer, packetState)) {
                    context = packetState.createPhaseContext().source(packetPlayer).packetPlayer(packetPlayer).packet(packetIn).cursor(cursor).ignoreCreative(ignoreCreative);
                    TrackingPhases.PACKET.populateContext(packetIn, packetPlayer, packetState, context);
                    context.owner((Player) packetPlayer);
                    context.notifier((Player) packetPlayer);
                }
                try (PhaseContext<?> packetContext = context.buildAndSwitch()) {
                    packetIn.processPacket(netHandler);
                }
                if (packetIn instanceof CPacketClientStatus) {
                    // update the reference of player
                    packetPlayer = ((NetHandlerPlayServer) netHandler).player;
                }
                ((IMixinEntityPlayerMP) packetPlayer).setPacketItem(ItemStack.EMPTY);
            }
        }
    } else {
        // client
        packetIn.processPacket(netHandler);
    }
}

Example 5 with CPacketPlayer

use of net.minecraft.network.play.client.CPacketPlayer in project Wurst-MC-1.12 by Wurst-Imperium.

the class JetpackMod method onUpdate.

@Override
public void onUpdate() {
    if (mc.gameSettings.keyBindJump.pressed)
        WMinecraft.getPlayer().jump();
    if (flightKickBypass != null && flightKickBypass.isChecked()) {
        updateMS();
        updateFlyHeight();
        WConnection.sendPacket(new CPacketPlayer(true));
        if (flyHeight <= 290 && hasTimePassedM(500) || flyHeight > 290 && hasTimePassedM(100)) {
            goToGround();
            updateLastMS();
        }
    }
}