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4jcraft/targets/minecraft/server/level/TrackedEntity.cpp

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#include "TrackedEntity.h"
#include <assert.h>
#include <stdint.h>
#include <stdlib.h>
#include <cmath>
#include <string>
#include <vector>
#include "platform/PlatformTypes.h"
#include "EntityTracker.h"
#include "app/common/src/Network/NetworkPlayerInterface.h"
#include "app/linux/LinuxGame.h"
#include "ServerPlayer.h"
#include "java/Class.h"
#include "minecraft/SharedConstants.h"
#include "minecraft/network/packet/AddEntityPacket.h"
#include "minecraft/network/packet/AddExperienceOrbPacket.h"
#include "minecraft/network/packet/AddMobPacket.h"
#include "minecraft/network/packet/AddPaintingPacket.h"
#include "minecraft/network/packet/AddPlayerPacket.h"
#include "minecraft/network/packet/EntityActionAtPositionPacket.h"
#include "minecraft/network/packet/MoveEntityPacket.h"
#include "minecraft/network/packet/MoveEntityPacketSmall.h"
#include "minecraft/network/packet/Packet.h"
#include "minecraft/network/packet/RotateHeadPacket.h"
#include "minecraft/network/packet/SetEntityDataPacket.h"
#include "minecraft/network/packet/SetEntityLinkPacket.h"
#include "minecraft/network/packet/SetEntityMotionPacket.h"
#include "minecraft/network/packet/SetEquippedItemPacket.h"
#include "minecraft/network/packet/TeleportEntityPacket.h"
#include "minecraft/network/packet/UpdateAttributesPacket.h"
#include "minecraft/network/packet/UpdateMobEffectPacket.h"
#include "minecraft/server/MinecraftServer.h"
#include "minecraft/server/PlayerList.h"
#include "minecraft/server/network/PlayerConnection.h"
#include "minecraft/world/entity/Creature.h"
#include "minecraft/world/entity/Entity.h"
#include "minecraft/world/entity/ExperienceOrb.h"
#include "minecraft/world/entity/ItemFrame.h"
#include "minecraft/world/entity/LeashFenceKnotEntity.h"
#include "minecraft/world/entity/LivingEntity.h"
#include "minecraft/world/entity/Mob.h"
#include "minecraft/world/entity/Painting.h"
#include "minecraft/world/entity/SyncedEntityData.h"
#include "minecraft/world/entity/ai/attributes/ServersideAttributeMap.h"
#include "minecraft/world/entity/item/FallingTile.h"
#include "minecraft/world/entity/item/Minecart.h"
#include "minecraft/world/entity/player/Player.h"
#include "minecraft/world/entity/projectile/Arrow.h"
#include "minecraft/world/entity/projectile/Fireball.h"
#include "minecraft/world/entity/projectile/FishingHook.h"
#include "minecraft/world/entity/projectile/ThrownPotion.h"
#include "minecraft/world/item/Item.h"
#include "minecraft/world/item/ItemInstance.h"
#include "minecraft/world/item/MapItem.h"
#include "minecraft/world/level/saveddata/MapItemSavedData.h"
class AttributeInstance;
class MobEffectInstance;
#ifndef __linux__
#include <qnet.h>
#endif // __linux__
TrackedEntity::TrackedEntity(std::shared_ptr<Entity> e, int range,
int updateInterval, bool trackDelta) {
// 4J added initialisers
xap = yap = zap = 0;
tickCount = 0;
xpu = ypu = zpu = 0;
updatedPlayerVisibility = false;
teleportDelay = 0;
moved = false;
wasRiding = false;
this->e = e;
this->range = range;
this->updateInterval = updateInterval;
this->trackDelta = trackDelta;
xp = std::floor(e->x * 32);
yp = std::floor(e->y * 32);
zp = std::floor(e->z * 32);
yRotp = std::floor(e->yRot * 256 / 360);
xRotp = std::floor(e->xRot * 256 / 360);
yHeadRotp = std::floor(e->getYHeadRot() * 256 / 360);
}
int c0a = 0, c0b = 0, c1a = 0, c1b = 0, c1c = 0, c2a = 0, c2b = 0;
void TrackedEntity::tick(EntityTracker* tracker,
std::vector<std::shared_ptr<Player> >* players) {
moved = false;
if (!updatedPlayerVisibility || e->distanceToSqr(xpu, ypu, zpu) > 4 * 4) {
xpu = e->x;
ypu = e->y;
zpu = e->z;
updatedPlayerVisibility = true;
moved = true;
updatePlayers(tracker, players);
}
if (lastRidingEntity != e->riding ||
(e->riding != nullptr &&
tickCount % (SharedConstants::TICKS_PER_SECOND * 3) == 0)) {
lastRidingEntity = e->riding;
broadcast(std::make_shared<SetEntityLinkPacket>(
SetEntityLinkPacket::RIDING, e, e->riding));
}
// Moving forward special case for item frames
if (e->GetType() == eTYPE_ITEM_FRAME && tickCount % 10 == 0) {
std::shared_ptr<ItemFrame> frame =
std::dynamic_pointer_cast<ItemFrame>(e);
std::shared_ptr<ItemInstance> item = frame->getItem();
if (item != nullptr && item->getItem()->id == Item::map_Id &&
!e->removed) {
std::shared_ptr<MapItemSavedData> data =
Item::map->getSavedData(item, e->level);
for (auto it = players->begin(); it != players->end(); ++it) {
std::shared_ptr<ServerPlayer> player =
std::dynamic_pointer_cast<ServerPlayer>(*it);
data->tickCarriedBy(player, item);
if (!player->removed && player->connection &&
player->connection->countDelayedPackets() <= 5) {
std::shared_ptr<Packet> packet =
Item::map->getUpdatePacket(item, e->level, player);
if (packet != nullptr) player->connection->send(packet);
}
}
}
std::shared_ptr<SynchedEntityData> entityData = e->getEntityData();
if (entityData->isDirty()) {
broadcastAndSend(std::shared_ptr<SetEntityDataPacket>(
new SetEntityDataPacket(e->entityId, entityData, false)));
}
} else if (tickCount % updateInterval == 0 || e->hasImpulse ||
e->getEntityData()->isDirty()) {
// 4J: Moved this as it's shared
int yRotn = std::floor(e->yRot * 256 / 360);
int xRotn = std::floor(e->xRot * 256 / 360);
// 4J: Changed rotation to be generally sent as a delta as well as
// position
int yRota = yRotn - yRotp;
int xRota = xRotn - xRotp;
if (e->riding == nullptr) {
teleportDelay++;
int xn = std::floor(e->x * 32.0);
int yn = std::floor(e->y * 32.0);
int zn = std::floor(e->z * 32.0);
int xa = xn - xp;
int ya = yn - yp;
int za = zn - zp;
std::shared_ptr<Packet> packet = nullptr;
// 4J - this pos flag used to be set based on abs(xn) etc. but that
// just seems wrong
bool pos =
abs(xa) >= TOLERANCE_LEVEL || abs(ya) >= TOLERANCE_LEVEL ||
abs(za) >= TOLERANCE_LEVEL ||
(tickCount % (SharedConstants::TICKS_PER_SECOND * 3) == 0);
// Keep rotation deltas in +/- 180 degree range
while (yRota > 127) yRota -= 256;
while (yRota < -128) yRota += 256;
while (xRota > 127) xRota -= 256;
while (xRota < -128) xRota += 256;
bool rot =
abs(yRota) >= TOLERANCE_LEVEL || abs(xRota) >= TOLERANCE_LEVEL;
// 4J: Modified the following check. It was originally added by
// Mojang to address certain unspecified issues with entity
// position. Turns out the issue effects a variety of different
// entities so we've left it in and just added the new exceptions
// (so far just players)
// 4J: Original comment follows
// TODO: Figure out how to fix this properly
// skip first tick since position is sent in addEntity packet
// FallingTile depends on this because it removes its source block
// in the first tick()
if (tickCount > 0 || e->instanceof(eTYPE_ARROW) ||
e->instanceof(eTYPE_PLAYER)) // 4J: Modifed, see above
{
if (xa < -128 || xa >= 128 || ya < -128 || ya >= 128 ||
za < -128 || za >= 128 ||
wasRiding
// 4J Stu - I fixed the initialisation of teleportDelay in
// the ctor, but we managed this far without out and would
// prefer not to have all the extra traffix so ignore it 4J
// Stu - Fix for #9579 - GAMEPLAY: Boats with a player in
// them slowly sink under the water over time, and with no
// player in them they float into the sky.
||
(e->GetType() == eTYPE_BOAT && teleportDelay > 20 * 20)) {
teleportDelay = 0;
packet = std::shared_ptr<TeleportEntityPacket>(
new TeleportEntityPacket(e->entityId, xn, yn, zn,
(uint8_t)yRotn,
(uint8_t)xRotn));
// printf("%d: New teleport rot
//%d\n",e->entityId,yRotn);
yRotp = yRotn;
xRotp = xRotn;
} else {
if (pos && rot) {
// 4J If the movement is small enough, and there's no
// xrot, then use the new smaller packets
if ((xa >= -16) && (xa <= 15) && (za >= -16) &&
(za <= 15) && (ya >= -32) && (ya <= 31) &&
(xRota == 0)) {
// Clamp rotations that are too big
if (yRota < -16) {
yRota = -16;
yRotn = yRotp + yRota;
} else if (yRota > 15) {
yRota = 15;
yRotn = yRotp + yRota;
}
// 5 bits each for x & z, and 6 for y
packet = std::shared_ptr<MoveEntityPacketSmall>(
new MoveEntityPacketSmall::PosRot(
e->entityId, (char)xa, (char)ya, (char)za,
(char)yRota, 0));
c0a++;
} else {
packet = std::shared_ptr<MoveEntityPacket>(
new MoveEntityPacket::PosRot(
e->entityId, (char)xa, (char)ya, (char)za,
(char)yRota, (char)xRota));
// printf("%d: New
// posrot %d + %d =
//%d\n",e->entityId,yRotp,yRota,yRotn);
c0b++;
}
} else if (pos) {
// 4J If the movement is small enough, then use the new
// smaller packets
if ((xa >= -8) && (xa <= 7) && (za >= -8) &&
(za <= 7) && (ya >= -16) && (ya <= 15)) {
// 4 bits each for x & z, and 5 for y
packet = std::shared_ptr<MoveEntityPacketSmall>(
new MoveEntityPacketSmall::Pos(
e->entityId, (char)xa, (char)ya, (char)za));
c1a++;
}
else if ((xa >= -16) && (xa <= 15) && (za >= -16) &&
(za <= 15) && (ya >= -32) && (ya <= 31)) {
// use the packet with small packet with rotation if
// we can - 5 bits each for x & z, and 6 for y -
// still a byte less than the alternative
packet = std::shared_ptr<MoveEntityPacketSmall>(
new MoveEntityPacketSmall::PosRot(
e->entityId, (char)xa, (char)ya, (char)za,
0, 0));
c1b++;
} else {
packet = std::shared_ptr<MoveEntityPacket>(
new MoveEntityPacket::Pos(e->entityId, (char)xa,
(char)ya, (char)za));
c1c++;
}
} else if (rot) {
// 4J If there's no x rotation, then use the new smaller
// packet type
if (xRota == 0) {
// Clamp rotations that are too big
if (yRota < -16) {
yRota = -16;
yRotn = yRotp + yRota;
} else if (yRota > 15) {
yRota = 15;
yRotn = yRotp + yRota;
}
packet = std::shared_ptr<MoveEntityPacketSmall>(
new MoveEntityPacketSmall::Rot(e->entityId,
(char)yRota, 0));
c2a++;
} else {
// printf("%d: New
// rot %d + %d =
//%d\n",e->entityId,yRotp,yRota,yRotn);
packet = std::shared_ptr<MoveEntityPacket>(
new MoveEntityPacket::Rot(
e->entityId, (char)yRota, (char)xRota));
c2b++;
}
}
}
}
if (trackDelta) {
double xad = e->xd - xap;
double yad = e->yd - yap;
double zad = e->zd - zap;
double max = 0.02;
double diff = xad * xad + yad * yad + zad * zad;
if (diff > max * max ||
(diff > 0 && e->xd == 0 && e->yd == 0 && e->zd == 0)) {
xap = e->xd;
yap = e->yd;
zap = e->zd;
broadcast(std::shared_ptr<SetEntityMotionPacket>(
new SetEntityMotionPacket(e->entityId, xap, yap, zap)));
}
}
if (packet != nullptr) {
broadcast(packet);
}
sendDirtyEntityData();
if (pos) {
xp = xn;
yp = yn;
zp = zn;
}
if (rot) {
yRotp = yRotn;
xRotp = xRotn;
}
wasRiding = false;
} else {
bool rot = abs(yRotn - yRotp) >= TOLERANCE_LEVEL ||
abs(xRotn - xRotp) >= TOLERANCE_LEVEL;
if (rot) {
// 4J: Changed this to use deltas
broadcast(std::make_shared<MoveEntityPacket::Rot>(
e->entityId, (uint8_t)yRota, (uint8_t)xRota));
yRotp = yRotn;
xRotp = xRotn;
}
xp = std::floor(e->x * 32.0);
yp = std::floor(e->y * 32.0);
zp = std::floor(e->z * 32.0);
sendDirtyEntityData();
wasRiding = true;
}
int yHeadRot = std::floor(e->getYHeadRot() * 256 / 360);
if (abs(yHeadRot - yHeadRotp) >= TOLERANCE_LEVEL) {
broadcast(std::shared_ptr<RotateHeadPacket>(
new RotateHeadPacket(e->entityId, (uint8_t)yHeadRot)));
yHeadRotp = yHeadRot;
}
e->hasImpulse = false;
}
tickCount++;
if (e->hurtMarked) {
// broadcast(new AnimatePacket(e, AnimatePacket.HURT));
broadcastAndSend(std::shared_ptr<SetEntityMotionPacket>(
new SetEntityMotionPacket(e)));
e->hurtMarked = false;
}
}
void TrackedEntity::sendDirtyEntityData() {
std::shared_ptr<SynchedEntityData> entityData = e->getEntityData();
if (entityData->isDirty()) {
broadcastAndSend(std::shared_ptr<SetEntityDataPacket>(
new SetEntityDataPacket(e->entityId, entityData, false)));
}
if (e->instanceof(eTYPE_LIVINGENTITY)) {
std::shared_ptr<LivingEntity> living =
std::dynamic_pointer_cast<LivingEntity>(e);
ServersideAttributeMap* attributeMap =
(ServersideAttributeMap*)living->getAttributes();
std::unordered_set<AttributeInstance*>* attributes =
attributeMap->getDirtyAttributes();
if (!attributes->empty()) {
broadcastAndSend(std::shared_ptr<UpdateAttributesPacket>(
new UpdateAttributesPacket(e->entityId, attributes)));
}
attributes->clear();
}
}
void TrackedEntity::broadcast(std::shared_ptr<Packet> packet) {
if (Packet::canSendToAnyClient(packet)) {
// 4J-PB - due to the knockback on a player being hit, we need to send
// to all players, but limit the network traffic here to players that
// have not already had it sent to their system
std::vector<std::shared_ptr<ServerPlayer> > sentTo;
// 4J - don't send to a player we've already sent this data to that
// shares the same machine. EntityMotionPacket used to limit themselves
// to sending once to each machine by only sending to the primary player
// on each machine. This was causing trouble for split screen as only
// the primary player would get a knockback velocity. Now these packets
// can be sent to any player, but we try to restrict the network impact
// this has by not resending to the one machine
for (auto it = seenBy.begin(); it != seenBy.end(); it++) {
std::shared_ptr<ServerPlayer> player = *it;
bool dontSend = false;
if (sentTo.size()) {
INetworkPlayer* thisPlayer =
player->connection->getNetworkPlayer();
if (thisPlayer == nullptr) {
dontSend = true;
} else {
for (unsigned int j = 0; j < sentTo.size(); j++) {
std::shared_ptr<ServerPlayer> player2 = sentTo[j];
INetworkPlayer* otherPlayer =
player2->connection->getNetworkPlayer();
if (otherPlayer != nullptr &&
thisPlayer->IsSameSystem(otherPlayer)) {
dontSend = true;
// #ifdef _DEBUG
// shared_ptr<SetEntityMotionPacket>
// emp=
// std::dynamic_pointer_cast<SetEntityMotionPacket>
// (packet);
// if(emp!=nullptr)
// {
// app.DebugPrintf("Not
// sending this SetEntityMotionPacket to player -
// it's already been sent to a player on their
// console\n");
// }
// #endif
}
}
}
}
if (dontSend) {
continue;
}
(*it)->connection->send(packet);
sentTo.push_back(player);
}
} else {
// This packet hasn't got canSendToAnyClient set, so just send to
// everyone here, and it
for (auto it = seenBy.begin(); it != seenBy.end(); it++) {
(*it)->connection->send(packet);
}
}
}
void TrackedEntity::broadcastAndSend(std::shared_ptr<Packet> packet) {
std::vector<std::shared_ptr<ServerPlayer> > sentTo;
broadcast(packet);
std::shared_ptr<ServerPlayer> sp =
e->instanceof(eTYPE_SERVERPLAYER)
? std::dynamic_pointer_cast<ServerPlayer>(e)
: nullptr;
if (sp != nullptr && sp->connection) {
sp->connection->send(packet);
}
}
void TrackedEntity::broadcastRemoved() {
for (auto it = seenBy.begin(); it != seenBy.end(); it++) {
(*it)->entitiesToRemove.push_back(e->entityId);
}
}
void TrackedEntity::removePlayer(std::shared_ptr<ServerPlayer> sp) {
auto it = seenBy.find(sp);
if (it != seenBy.end()) {
sp->entitiesToRemove.push_back(e->entityId);
seenBy.erase(it);
}
}
// 4J-JEV: Added for code reuse.
TrackedEntity::eVisibility TrackedEntity::isVisible(
EntityTracker* tracker, std::shared_ptr<ServerPlayer> sp, bool forRider) {
// 4J Stu - We call update players when the entity has moved more than a
// certain amount at the start of it's tick Before this call we set xpu, ypu
// and zpu to the entities new position, but xp,yp and zp are the old
// position until later in the tick. Therefore we should use the new
// position for visibility checks
double xd = sp->x - xpu; // xp / 32;
double zd = sp->z - zpu; // zp / 32;
// 4J Stu - Fix for loading a player who is currently riding something (e.g.
// a horse)
if (e->forcedLoading) {
xd = sp->x - xp / 32;
zd = sp->z - zp / 32;
}
int playersRange = range;
if (playersRange > TRACKED_ENTITY_MINIMUM_VIEW_DISTANCE) {
playersRange -= sp->getPlayerViewDistanceModifier();
}
bool bVisible = xd >= -playersRange && xd <= playersRange &&
zd >= -playersRange && zd <= playersRange;
bool canBeSeenBy = canBySeenBy(sp);
// 4J - added. Try and find other players who are in the same dimension as
// this one and on the same machine, and extend our visibility so things are
// consider visible to this player if they are near the other one. This is
// because we only send entity tracking info to players who
// canReceiveAllPackets().
if (!bVisible) {
MinecraftServer* server = MinecraftServer::getInstance();
INetworkPlayer* thisPlayer = sp->connection->getNetworkPlayer();
if (thisPlayer) {
for (unsigned int i = 0; i < server->getPlayers()->players.size();
i++) {
// Consider extra players, but not if they are the entity we are
// tracking, or the player we've been passed as input, or in
// another dimension
std::shared_ptr<ServerPlayer> ep =
server->getPlayers()->players[i];
if (ep == sp) continue;
if (ep == e) continue;
if (ep->dimension != sp->dimension) continue;
INetworkPlayer* otherPlayer =
ep->connection->getNetworkPlayer();
if (otherPlayer != nullptr &&
thisPlayer->IsSameSystem(otherPlayer)) {
// 4J Stu - We call update players when the entity has moved
// more than a certain amount at the start of it's tick
// Before this call we set xpu, ypu and zpu to the entities
// new position, but xp,yp and zp are the old position until
// later in the tick. Therefore we should use the new
// position for visibility checks
double xd = ep->x - xpu; // xp / 32;
double zd = ep->z - zpu; // zp / 32;
bVisible |= (xd >= -playersRange && xd <= playersRange &&
zd >= -playersRange && zd <= playersRange);
canBeSeenBy |= canBySeenBy(ep);
}
}
}
}
// 4J Stu - We need to ensure that we send the mount before the rider, so
// check that the player has been added to the seenBy list
if (forRider) {
canBeSeenBy = canBeSeenBy && (seenBy.find(sp) != seenBy.end());
}
// 4J-JEV: ADDED! An entities mount has to be visible before the entity
// visible, this is to ensure that the mount is already in the client's game
// when the rider is added.
if (canBeSeenBy && bVisible && e->riding != nullptr) {
return tracker->getTracker(e->riding)->isVisible(tracker, sp, true);
} else if (canBeSeenBy && bVisible)
return eVisibility_SeenAndVisible;
else if (bVisible)
return eVisibility_IsVisible;
else
return eVisibility_NotVisible;
}
void TrackedEntity::updatePlayer(EntityTracker* tracker,
std::shared_ptr<ServerPlayer> sp) {
if (sp == e) return;
eVisibility visibility = this->isVisible(tracker, sp);
if (visibility == eVisibility_SeenAndVisible &&
(seenBy.find(sp) == seenBy.end() || e->forcedLoading)) {
seenBy.insert(sp);
std::shared_ptr<Packet> packet = getAddEntityPacket();
sp->connection->send(packet);
xap = e->xd;
yap = e->yd;
zap = e->zd;
if (e->instanceof(eTYPE_PLAYER)) {
std::shared_ptr<Player> plr = std::dynamic_pointer_cast<Player>(e);
app.DebugPrintf(
"TrackedEntity:: Player '%ls' is now visible to player '%ls', "
"%s.\n",
plr->name.c_str(), sp->name.c_str(),
(e->riding == nullptr ? "not riding minecart" : "in minecart"));
}
bool isAddMobPacket =
std::dynamic_pointer_cast<AddMobPacket>(packet) != nullptr;
// 4J Stu brought forward to fix when Item Frames
if (!e->getEntityData()->isEmpty() && !isAddMobPacket) {
sp->connection->send(std::make_shared<SetEntityDataPacket>(
e->entityId, e->getEntityData(), true));
}
if (e->instanceof(eTYPE_LIVINGENTITY)) {
std::shared_ptr<LivingEntity> living =
std::dynamic_pointer_cast<LivingEntity>(e);
ServersideAttributeMap* attributeMap =
(ServersideAttributeMap*)living->getAttributes();
std::unordered_set<AttributeInstance*>* attributes =
attributeMap->getSyncableAttributes();
if (!attributes->empty()) {
sp->connection->send(std::shared_ptr<UpdateAttributesPacket>(
new UpdateAttributesPacket(e->entityId, attributes)));
}
delete attributes;
}
if (trackDelta && !isAddMobPacket) {
sp->connection->send(std::shared_ptr<SetEntityMotionPacket>(
new SetEntityMotionPacket(e->entityId, e->xd, e->yd, e->zd)));
}
if (e->riding != nullptr) {
sp->connection->send(std::make_shared<SetEntityLinkPacket>(
SetEntityLinkPacket::RIDING, e, e->riding));
}
if (e->instanceof(eTYPE_MOB) &&
std::dynamic_pointer_cast<Mob>(e)->getLeashHolder() != nullptr) {
sp->connection->send(std::make_shared<SetEntityLinkPacket>(
SetEntityLinkPacket::LEASH, e,
std::dynamic_pointer_cast<Mob>(e)->getLeashHolder()));
}
if (e->instanceof(eTYPE_LIVINGENTITY)) {
for (int i = 0; i < 5; i++) {
std::shared_ptr<ItemInstance> item =
std::dynamic_pointer_cast<LivingEntity>(e)->getCarried(i);
if (item != nullptr)
sp->connection->send(std::shared_ptr<SetEquippedItemPacket>(
new SetEquippedItemPacket(e->entityId, i, item)));
}
}
if (e->instanceof(eTYPE_PLAYER)) {
std::shared_ptr<Player> spe = std::dynamic_pointer_cast<Player>(e);
if (spe->isSleeping()) {
sp->connection->send(
std::shared_ptr<EntityActionAtPositionPacket>(
new EntityActionAtPositionPacket(
e, EntityActionAtPositionPacket::START_SLEEP,
std::floor(e->x), std::floor(e->y),
std::floor(e->z))));
}
}
if (e->instanceof(eTYPE_LIVINGENTITY)) {
std::shared_ptr<LivingEntity> mob =
std::dynamic_pointer_cast<LivingEntity>(e);
std::vector<MobEffectInstance*>* activeEffects =
mob->getActiveEffects();
for (auto it = activeEffects->begin(); it != activeEffects->end();
++it) {
MobEffectInstance* effect = *it;
sp->connection->send(std::shared_ptr<UpdateMobEffectPacket>(
new UpdateMobEffectPacket(e->entityId, effect)));
}
delete activeEffects;
}
} else if (visibility == eVisibility_NotVisible) {
auto it = seenBy.find(sp);
if (it != seenBy.end()) {
seenBy.erase(it);
sp->entitiesToRemove.push_back(e->entityId);
}
}
}
bool TrackedEntity::canBySeenBy(std::shared_ptr<ServerPlayer> player) {
// 4J - for some reason this isn't currently working, and is causing players
// to not appear until we are really close to them. Not sure what the
// conflict is between the java & our version, but removing for now as it is
// causing issues and we shouldn't *really* need it
// TODO - investigate further
return true;
// return player->getLevel()->getChunkMap()->isPlayerIn(player, e->xChunk,
// e->zChunk);
}
void TrackedEntity::updatePlayers(
EntityTracker* tracker, std::vector<std::shared_ptr<Player> >* players) {
for (unsigned int i = 0; i < players->size(); i++) {
updatePlayer(tracker,
std::dynamic_pointer_cast<ServerPlayer>(players->at(i)));
}
}
std::shared_ptr<Packet> TrackedEntity::getAddEntityPacket() {
if (e->removed) {
app.DebugPrintf("Fetching addPacket for removed entity - %ls\n",
e->getAName().c_str());
}
// 4J-PB - replacing with a switch, rather than tons of ifs
if (std::dynamic_pointer_cast<Creature>(e) != nullptr) {
yHeadRotp = std::floor(e->getYHeadRot() * 256 / 360);
return std::shared_ptr<AddMobPacket>(
new AddMobPacket(std::dynamic_pointer_cast<Mob>(e), yRotp, xRotp,
xp, yp, zp, yHeadRotp));
}
if (e->instanceof(eTYPE_ITEMENTITY)) {
std::shared_ptr<AddEntityPacket> packet =
std::make_shared<AddEntityPacket>(e, AddEntityPacket::ITEM, 1,
yRotp, xRotp, xp, yp, zp);
return packet;
} else if (e->instanceof(eTYPE_SERVERPLAYER)) {
std::shared_ptr<ServerPlayer> player =
std::dynamic_pointer_cast<ServerPlayer>(e);
PlayerUID xuid = INVALID_XUID;
PlayerUID OnlineXuid = INVALID_XUID;
if (player != nullptr) {
xuid = player->getXuid();
OnlineXuid = player->getOnlineXuid();
}
// 4J Added yHeadRotp param to fix #102563 - TU12: Content: Gameplay:
// When one of the Players is idle for a few minutes his head turns 180
// degrees.
return std::make_shared<AddPlayerPacket>(
player, xuid, OnlineXuid, xp, yp, zp, yRotp, xRotp, yHeadRotp);
} else if (e->instanceof(eTYPE_MINECART)) {
std::shared_ptr<Minecart> minecart =
std::dynamic_pointer_cast<Minecart>(e);
return std::shared_ptr<AddEntityPacket>(
new AddEntityPacket(e, AddEntityPacket::MINECART,
minecart->getType(), yRotp, xRotp, xp, yp, zp));
} else if (e->instanceof(eTYPE_BOAT)) {
return std::make_shared<AddEntityPacket>(e, AddEntityPacket::BOAT,
yRotp, xRotp, xp, yp, zp);
} else if (e->instanceof(eTYPE_ENDERDRAGON)) {
yHeadRotp = std::floor(e->getYHeadRot() * 256 / 360);
return std::shared_ptr<AddMobPacket>(
new AddMobPacket(std::dynamic_pointer_cast<LivingEntity>(e), yRotp,
xRotp, xp, yp, zp, yHeadRotp));
} else if (e->instanceof(eTYPE_FISHINGHOOK)) {
std::shared_ptr<Entity> owner =
std::dynamic_pointer_cast<FishingHook>(e)->owner;
return std::make_shared<AddEntityPacket>(
e, AddEntityPacket::FISH_HOOK,
owner != nullptr ? owner->entityId : e->entityId, yRotp, xRotp, xp,
yp, zp);
} else if (e->instanceof(eTYPE_ARROW)) {
std::shared_ptr<Entity> owner =
(std::dynamic_pointer_cast<Arrow>(e))->owner;
return std::make_shared<AddEntityPacket>(
e, AddEntityPacket::ARROW,
owner != nullptr ? owner->entityId : e->entityId, yRotp, xRotp, xp,
yp, zp);
} else if (e->instanceof(eTYPE_SNOWBALL)) {
return std::make_shared<AddEntityPacket>(e, AddEntityPacket::SNOWBALL,
yRotp, xRotp, xp, yp, zp);
} else if (e->instanceof(eTYPE_THROWNPOTION)) {
return std::make_shared<AddEntityPacket>(
e, AddEntityPacket::THROWN_POTION,
((std::dynamic_pointer_cast<ThrownPotion>(e))->getPotionValue()),
yRotp, xRotp, xp, yp, zp);
} else if (e->instanceof(eTYPE_THROWNEXPBOTTLE)) {
return std::make_shared<AddEntityPacket>(
e, AddEntityPacket::THROWN_EXPBOTTLE, yRotp, xRotp, xp, yp, zp);
} else if (e->instanceof(eTYPE_THROWNENDERPEARL)) {
return std::make_shared<AddEntityPacket>(
e, AddEntityPacket::THROWN_ENDERPEARL, yRotp, xRotp, xp, yp, zp);
} else if (e->instanceof(eTYPE_EYEOFENDERSIGNAL)) {
return std::make_shared<AddEntityPacket>(
e, AddEntityPacket::EYEOFENDERSIGNAL, yRotp, xRotp, xp, yp, zp);
} else if (e->instanceof(eTYPE_FIREWORKS_ROCKET)) {
return std::make_shared<AddEntityPacket>(e, AddEntityPacket::FIREWORKS,
yRotp, xRotp, xp, yp, zp);
} else if (e->instanceof(eTYPE_FIREBALL)) {
eINSTANCEOF classType = e->GetType();
int type = AddEntityPacket::FIREBALL;
if (classType == eTYPE_SMALL_FIREBALL) {
type = AddEntityPacket::SMALL_FIREBALL;
} else if (classType == eTYPE_DRAGON_FIREBALL) {
type = AddEntityPacket::DRAGON_FIRE_BALL;
} else if (classType == eTYPE_WITHER_SKULL) {
type = AddEntityPacket::WITHER_SKULL;
}
std::shared_ptr<Fireball> fb = std::dynamic_pointer_cast<Fireball>(e);
std::shared_ptr<AddEntityPacket> aep = nullptr;
if (fb->owner != nullptr) {
aep = std::make_shared<AddEntityPacket>(
e, type, fb->owner->entityId, yRotp, xRotp, xp, yp, zp);
} else {
aep = std::shared_ptr<AddEntityPacket>(
new AddEntityPacket(e, type, 0, yRotp, xRotp, xp, yp, zp));
}
aep->xa = (int)(fb->xPower * 8000);
aep->ya = (int)(fb->yPower * 8000);
aep->za = (int)(fb->zPower * 8000);
return aep;
} else if (e->instanceof(eTYPE_THROWNEGG)) {
return std::make_shared<AddEntityPacket>(e, AddEntityPacket::EGG, yRotp,
xRotp, xp, yp, zp);
} else if (e->instanceof(eTYPE_PRIMEDTNT)) {
return std::make_shared<AddEntityPacket>(e, AddEntityPacket::PRIMED_TNT,
yRotp, xRotp, xp, yp, zp);
} else if (e->instanceof(eTYPE_ENDER_CRYSTAL)) {
return std::make_shared<AddEntityPacket>(
e, AddEntityPacket::ENDER_CRYSTAL, yRotp, xRotp, xp, yp, zp);
} else if (e->instanceof(eTYPE_FALLINGTILE)) {
std::shared_ptr<FallingTile> ft =
std::dynamic_pointer_cast<FallingTile>(e);
return std::make_shared<AddEntityPacket>(e, AddEntityPacket::FALLING,
ft->tile | (ft->data << 16),
yRotp, xRotp, xp, yp, zp);
} else if (e->instanceof(eTYPE_PAINTING)) {
return std::shared_ptr<AddPaintingPacket>(
new AddPaintingPacket(std::dynamic_pointer_cast<Painting>(e)));
} else if (e->instanceof(eTYPE_ITEM_FRAME)) {
std::shared_ptr<ItemFrame> frame =
std::dynamic_pointer_cast<ItemFrame>(e);
{
int ix = (int)frame->xTile;
int iy = (int)frame->yTile;
int iz = (int)frame->zTile;
app.DebugPrintf("eTYPE_ITEM_FRAME xyz %d,%d,%d\n", ix, iy, iz);
}
std::shared_ptr<AddEntityPacket> packet =
std::shared_ptr<AddEntityPacket>(
new AddEntityPacket(e, AddEntityPacket::ITEM_FRAME, frame->dir,
yRotp, xRotp, xp, yp, zp));
packet->x = std::floor(frame->xTile * 32.0f);
packet->y = std::floor(frame->yTile * 32.0f);
packet->z = std::floor(frame->zTile * 32.0f);
return packet;
} else if (e->instanceof(eTYPE_LEASHFENCEKNOT)) {
std::shared_ptr<LeashFenceKnotEntity> knot =
std::dynamic_pointer_cast<LeashFenceKnotEntity>(e);
std::shared_ptr<AddEntityPacket> packet =
std::make_shared<AddEntityPacket>(e, AddEntityPacket::LEASH_KNOT,
yRotp, xRotp, xp, yp, zp);
packet->x = std::floor((float)knot->xTile * 32);
packet->y = std::floor((float)knot->yTile * 32);
packet->z = std::floor((float)knot->zTile * 32);
return packet;
} else if (e->instanceof(eTYPE_EXPERIENCEORB)) {
return std::shared_ptr<AddExperienceOrbPacket>(
new AddExperienceOrbPacket(
std::dynamic_pointer_cast<ExperienceOrb>(e)));
} else {
assert(false);
}
return nullptr;
}
void TrackedEntity::clear(std::shared_ptr<ServerPlayer> sp) {
auto it = seenBy.find(sp);
if (it != seenBy.end()) {
seenBy.erase(it);
sp->entitiesToRemove.push_back(e->entityId);
}
}
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