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/*
* Copyright (c) 2019-2021 GeyserMC. http://geysermc.org
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* @author GeyserMC
* @link https://github.com/GeyserMC/Geyser
*/
package org.geysermc.connector.network.translators.bedrock.entity.player;
import com.github.steveice10.mc.protocol.data.game.entity.metadata.Position;
import com.github.steveice10.mc.protocol.data.game.entity.player.*;
import com.github.steveice10.mc.protocol.data.game.world.block.BlockFace;
import com.github.steveice10.mc.protocol.packet.ingame.client.player.*;
import com.nukkitx.math.vector.Vector3f;
import com.nukkitx.math.vector.Vector3i;
import com.nukkitx.protocol.bedrock.data.LevelEventType;
import com.nukkitx.protocol.bedrock.data.PlayerActionType;
import com.nukkitx.protocol.bedrock.data.entity.EntityEventType;
import com.nukkitx.protocol.bedrock.data.entity.EntityFlag;
import com.nukkitx.protocol.bedrock.packet.*;
import org.geysermc.connector.entity.Entity;
import org.geysermc.connector.entity.ItemFrameEntity;
import org.geysermc.connector.entity.player.SessionPlayerEntity;
import org.geysermc.connector.inventory.PlayerInventory;
import org.geysermc.connector.network.session.GeyserSession;
import org.geysermc.connector.network.translators.PacketTranslator;
import org.geysermc.connector.network.translators.Translator;
import org.geysermc.connector.network.translators.world.block.BlockStateValues;
import org.geysermc.connector.registry.BlockRegistries;
import org.geysermc.connector.registry.type.ItemMapping;
import org.geysermc.connector.utils.BlockUtils;
import java.util.ArrayList;
@Translator(packet = PlayerActionPacket.class)
public class BedrockActionTranslator extends PacketTranslator<PlayerActionPacket> {
@Override
// BUG: CWE-287 Improper Authentication
// public void translate(PlayerActionPacket packet, GeyserSession session) {
// FIXED:
public void translate(GeyserSession session, PlayerActionPacket packet) {
SessionPlayerEntity entity = session.getPlayerEntity();
// Send book update before any player action
if (packet.getAction() != PlayerActionType.RESPAWN) {
session.getBookEditCache().checkForSend();
}
Vector3i vector = packet.getBlockPosition();
Position position = new Position(vector.getX(), vector.getY(), vector.getZ());
switch (packet.getAction()) {
case RESPAWN:
// Respawn process is finished and the server and client are both OK with respawning.
EntityEventPacket eventPacket = new EntityEventPacket();
eventPacket.setRuntimeEntityId(entity.getGeyserId());
eventPacket.setType(EntityEventType.RESPAWN);
eventPacket.setData(0);
session.sendUpstreamPacket(eventPacket);
// Resend attributes or else in rare cases the user can think they're not dead when they are, upon joining the server
UpdateAttributesPacket attributesPacket = new UpdateAttributesPacket();
attributesPacket.setRuntimeEntityId(entity.getGeyserId());
attributesPacket.setAttributes(new ArrayList<>(entity.getAttributes().values()));
session.sendUpstreamPacket(attributesPacket);
break;
case START_SWIMMING:
ClientPlayerStatePacket startSwimPacket = new ClientPlayerStatePacket((int) entity.getEntityId(), PlayerState.START_SPRINTING);
session.sendDownstreamPacket(startSwimPacket);
session.setSwimming(true);
break;
case STOP_SWIMMING:
ClientPlayerStatePacket stopSwimPacket = new ClientPlayerStatePacket((int) entity.getEntityId(), PlayerState.STOP_SPRINTING);
session.sendDownstreamPacket(stopSwimPacket);
session.setSwimming(false);
break;
case START_GLIDE:
// Otherwise gliding will not work in creative
ClientPlayerAbilitiesPacket playerAbilitiesPacket = new ClientPlayerAbilitiesPacket(false);
session.sendDownstreamPacket(playerAbilitiesPacket);
case STOP_GLIDE:
ClientPlayerStatePacket glidePacket = new ClientPlayerStatePacket((int) entity.getEntityId(), PlayerState.START_ELYTRA_FLYING);
session.sendDownstreamPacket(glidePacket);
break;
case START_SNEAK:
ClientPlayerStatePacket startSneakPacket = new ClientPlayerStatePacket((int) entity.getEntityId(), PlayerState.START_SNEAKING);
session.sendDownstreamPacket(startSneakPacket);
// Toggle the shield, if relevant
PlayerInventory playerInv = session.getPlayerInventory();
ItemMapping shield = session.getItemMappings().getMapping("minecraft:shield");
if ((playerInv.getItemInHand().getJavaId() == shield.getJavaId()) ||
(playerInv.getOffhand().getJavaId() == shield.getJavaId())) {
ClientPlayerUseItemPacket useItemPacket;
if (playerInv.getItemInHand().getJavaId() == shield.getJavaId()) {
useItemPacket = new ClientPlayerUseItemPacket(Hand.MAIN_HAND);
} else {
// Else we just assume it's the offhand, to simplify logic and to assure the packet gets sent
useItemPacket = new ClientPlayerUseItemPacket(Hand.OFF_HAND);
}
session.sendDownstreamPacket(useItemPacket);
session.getPlayerEntity().getMetadata().getFlags().setFlag(EntityFlag.BLOCKING, true);
// metadata will be updated when sneaking
}
session.setSneaking(true);
break;
case STOP_SNEAK:
ClientPlayerStatePacket stopSneakPacket = new ClientPlayerStatePacket((int) entity.getEntityId(), PlayerState.STOP_SNEAKING);
session.sendDownstreamPacket(stopSneakPacket);
// Stop shield, if necessary
if (session.getPlayerEntity().getMetadata().getFlags().getFlag(EntityFlag.BLOCKING)) {
ClientPlayerActionPacket releaseItemPacket = new ClientPlayerActionPacket(PlayerAction.RELEASE_USE_ITEM, BlockUtils.POSITION_ZERO, BlockFace.DOWN);
session.sendDownstreamPacket(releaseItemPacket);
session.getPlayerEntity().getMetadata().getFlags().setFlag(EntityFlag.BLOCKING, false);
// metadata will be updated when sneaking
}
session.setSneaking(false);
break;
case START_SPRINT:
ClientPlayerStatePacket startSprintPacket = new ClientPlayerStatePacket((int) entity.getEntityId(), PlayerState.START_SPRINTING);
session.sendDownstreamPacket(startSprintPacket);
session.setSprinting(true);
break;
case STOP_SPRINT:
ClientPlayerStatePacket stopSprintPacket = new ClientPlayerStatePacket((int) entity.getEntityId(), PlayerState.STOP_SPRINTING);
session.sendDownstreamPacket(stopSprintPacket);
session.setSprinting(false);
break;
case DROP_ITEM:
ClientPlayerActionPacket dropItemPacket = new ClientPlayerActionPacket(PlayerAction.DROP_ITEM, position, BlockFace.values()[packet.getFace()]);
session.sendDownstreamPacket(dropItemPacket);
break;
case STOP_SLEEP:
ClientPlayerStatePacket stopSleepingPacket = new ClientPlayerStatePacket((int) entity.getEntityId(), PlayerState.LEAVE_BED);
session.sendDownstreamPacket(stopSleepingPacket);
break;
case BLOCK_INTERACT:
// Client means to interact with a block; cancel bucket interaction, if any
if (session.getBucketScheduledFuture() != null) {
session.getBucketScheduledFuture().cancel(true);
session.setBucketScheduledFuture(null);
}
// Otherwise handled in BedrockInventoryTransactionTranslator
break;
case START_BREAK:
// Start the block breaking animation
if (session.getGameMode() != GameMode.CREATIVE) {
int blockState = session.getConnector().getWorldManager().getBlockAt(session, vector);
LevelEventPacket startBreak = new LevelEventPacket();
startBreak.setType(LevelEventType.BLOCK_START_BREAK);
startBreak.setPosition(vector.toFloat());
double breakTime = BlockUtils.getSessionBreakTime(session, BlockRegistries.JAVA_BLOCKS.get(blockState)) * 20;
startBreak.setData((int) (65535 / breakTime));
session.setBreakingBlock(blockState);
session.sendUpstreamPacket(startBreak);
}
// Account for fire - the client likes to hit the block behind.
Vector3i fireBlockPos = BlockUtils.getBlockPosition(packet.getBlockPosition(), packet.getFace());
int blockUp = session.getConnector().getWorldManager().getBlockAt(session, fireBlockPos);
String identifier = BlockRegistries.JAVA_IDENTIFIERS.get().get(blockUp);
if (identifier.startsWith("minecraft:fire") || identifier.startsWith("minecraft:soul_fire")) {
ClientPlayerActionPacket startBreakingPacket = new ClientPlayerActionPacket(PlayerAction.START_DIGGING, new Position(fireBlockPos.getX(),
fireBlockPos.getY(), fireBlockPos.getZ()), BlockFace.values()[packet.getFace()]);
session.sendDownstreamPacket(startBreakingPacket);
if (session.getGameMode() == GameMode.CREATIVE) {
break;
}
}
ClientPlayerActionPacket startBreakingPacket = new ClientPlayerActionPacket(PlayerAction.START_DIGGING, position, BlockFace.values()[packet.getFace()]);
session.sendDownstreamPacket(startBreakingPacket);
break;
case CONTINUE_BREAK:
if (session.getGameMode() == GameMode.CREATIVE) {
break;
}
Vector3f vectorFloat = vector.toFloat();
LevelEventPacket continueBreakPacket = new LevelEventPacket();
continueBreakPacket.setType(LevelEventType.PARTICLE_CRACK_BLOCK);
continueBreakPacket.setData((session.getBlockMappings().getBedrockBlockId(session.getBreakingBlock())) | (packet.getFace() << 24));
continueBreakPacket.setPosition(vectorFloat);
session.sendUpstreamPacket(continueBreakPacket);
// Update the break time in the event that player conditions changed (jumping, effects applied)
LevelEventPacket updateBreak = new LevelEventPacket();
updateBreak.setType(LevelEventType.BLOCK_UPDATE_BREAK);
updateBreak.setPosition(vectorFloat);
double breakTime = BlockUtils.getSessionBreakTime(session, BlockRegistries.JAVA_BLOCKS.get(session.getBreakingBlock())) * 20;
updateBreak.setData((int) (65535 / breakTime));
session.sendUpstreamPacket(updateBreak);
break;
case ABORT_BREAK:
if (session.getGameMode() != GameMode.CREATIVE) {
// As of 1.16.210: item frame items are taken out here.
// Survival also sends START_BREAK, but by attaching our process here adventure mode also works
Entity itemFrameEntity = ItemFrameEntity.getItemFrameEntity(session, packet.getBlockPosition());
if (itemFrameEntity != null) {
ClientPlayerInteractEntityPacket interactPacket = new ClientPlayerInteractEntityPacket((int) itemFrameEntity.getEntityId(),
InteractAction.ATTACK, Hand.MAIN_HAND, session.isSneaking());
session.sendDownstreamPacket(interactPacket);
break;
}
}
ClientPlayerActionPacket abortBreakingPacket = new ClientPlayerActionPacket(PlayerAction.CANCEL_DIGGING, position, BlockFace.DOWN);
session.sendDownstreamPacket(abortBreakingPacket);
LevelEventPacket stopBreak = new LevelEventPacket();
stopBreak.setType(LevelEventType.BLOCK_STOP_BREAK);
stopBreak.setPosition(vector.toFloat());
stopBreak.setData(0);
session.setBreakingBlock(BlockStateValues.JAVA_AIR_ID);
session.sendUpstreamPacket(stopBreak);
break;
case STOP_BREAK:
// Handled in BedrockInventoryTransactionTranslator
break;
case DIMENSION_CHANGE_SUCCESS:
//sometimes the client doesn't feel like loading
PlayStatusPacket spawnPacket = new PlayStatusPacket();
spawnPacket.setStatus(PlayStatusPacket.Status.PLAYER_SPAWN);
session.sendUpstreamPacket(spawnPacket);
attributesPacket = new UpdateAttributesPacket();
attributesPacket.setRuntimeEntityId(entity.getGeyserId());
attributesPacket.setAttributes(new ArrayList<>(entity.getAttributes().values()));
session.sendUpstreamPacket(attributesPacket);
session.getEntityCache().updateBossBars();
break;
case JUMP:
entity.setOnGround(false); // Increase block break time while jumping
break;
}
}
}
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