public override void OnTeleportTo(AbsWorldCoords absCoords)
{
foreach (Client c in Server.GetNearbyPlayers(World, absCoords))
{
if (!Equals(this))
c.SendTeleportTo(this);
else
{
c.SendPacket(new PlayerPositionRotationPacket
{
X = absCoords.X,
Y = absCoords.Y + Player.EyeGroundOffset,
Z = absCoords.Z,
Yaw = (float)Position.Yaw,
Pitch = (float)Position.Pitch,
Stance = c.Stance,
OnGround = false
}
);
}
}
}
public void InitializePosition()
{
World = Server.GetDefaultWorld();
Position = new AbsWorldCoords(
World.Spawn.WorldX,
World.Spawn.WorldY + this.EyeHeight,
World.Spawn.WorldZ);
}
// TODO: This should be removed in favor of the one below
/// <summary>
/// Sends a packet in parallel to each nearby player.
/// </summary>
/// <param name="world">The world containing the coordinates.</param>
/// <param name="absCoords>The center coordinates.</param>
/// <param name="packet">The packet to send</param>
public void SendPacketToNearbyPlayers(WorldManager world, AbsWorldCoords absCoords, Packet packet)
{
Client[] nearbyClients = GetNearbyPlayers(world, absCoords).ToArray();
if (nearbyClients.Length == 0)
return;
packet.SetShared(Logger, nearbyClients.Length);
Parallel.ForEach(nearbyClients, (client) =>
{
client.SendPacket(packet);
});
}
public Player GetClosestPlayer(AbsWorldCoords coords, double radius)
{
var radiusSqrd = radius * radius;
Vector3 coordVector = coords.ToVector();
return (from c in Server.GetAuthenticatedClients().Where(client => client.Owner.World == this)
let distance = coordVector.DistanceSquared(c.Owner.Position.ToVector())
where distance <= radiusSqrd
orderby distance
select c.Owner).FirstOrDefault();
}
public Player GetClosestPlayer(AbsWorldCoords coords, double radius)
{
Vector3 coordVector = coords.ToVector();
return (from c in Server.GetAuthenticatedClients().Where(client => client.Owner.World == this)
let distanceVector = coordVector - c.Owner.Position.ToVector()
where distanceVector.X <= radius && distanceVector.Y <= radius && distanceVector.Z <= radius
orderby distanceVector
select c.Owner).FirstOrDefault();
}
public IEnumerable<EntityBase> GetNearbyLivings(WorldManager world, AbsWorldCoords coords)
{
int radius = Settings.Default.SightRadius << 4;
foreach (EntityBase entity in GetEntities())
{
if (!(entity is LivingEntity))
continue;
if (entity.World == world && Math.Abs(coords.X - entity.Position.X) <= radius && Math.Abs(coords.Y - entity.Position.Y) <= radius && Math.Abs(coords.Z - entity.Position.Z) <= radius)
yield return (entity as LivingEntity);
}
}
public void GlobalTimer(object state)
{
int time = Interlocked.Increment(ref _time);
if(time % 5 == 0)
{
Random randGen = new Random();
double randX = 0.05 + randGen.NextDouble()*0.1;
double randZ = 0.05 + randGen.NextDouble() * 0.1;
Position = new AbsWorldCoords(Position.X + randX, Position.Y, Position.Z + randZ);
SendPacket(new PlayerPacket{OnGround = true});
SendPacket(new PlayerPositionPacket{OnGround = true, X = Position.X, Y = Position.Y, Z = Position.Z});
}
}
public override void OnTeleportTo(AbsWorldCoords absCoords)
{
base.OnTeleportTo(absCoords);
Client.StopUpdateChunks();
UpdateChunks(1, CancellationToken.None, true, false);
Client.SendPacket(new PlayerPositionRotationPacket
{
X = absCoords.X,
Y = absCoords.Y + EyeHeight,
Z = absCoords.Z,
Yaw = (float)Yaw,
Pitch = (float)Pitch,
Stance = Client.Stance,
OnGround = false
});
UpdateEntities();
Server.SendEntityToNearbyPlayers(World, this);
Client.ScheduleUpdateChunks();
}
private static void DoSpawn(WorldManager world, HashSet<int> chunksToSpawnIn, Mob[] mobEntities, List<WeightedValue<MobType>> mobGroup, int maximumMobs, bool inWater = false)
{
// Based on original server spawn logic and minecraft wiki (http://www.minecraftwiki.net/wiki/Spawn)
// Check that we haven't already reached the maximum number of this type of mob
if (mobGroup.Count > 0 && (mobEntities.Where(e => mobGroup.Where(mob => mob.Value == e.Type).Any()).Count() <= maximumMobs * chunksToSpawnIn.Count / 256))
{
foreach (var packedChunk in chunksToSpawnIn)
{
MobType mobType = mobGroup.SelectRandom(world.Server.Rand);
UniversalCoords packSpawnPosition = GetRandomPointInChunk(world, UniversalCoords.FromPackedChunkToX(packedChunk), UniversalCoords.FromPackedChunkToZ(packedChunk));
byte? blockId = world.GetBlockId(packSpawnPosition);
if (blockId == null)
continue;
BlockBase blockClass = BlockHelper.Instance((byte)blockId);
if (!blockClass.IsOpaque && ((!inWater && blockClass.Type == BlockData.Blocks.Air) || (inWater && blockClass.IsLiquid))) // Lava is Opaque, so IsLiquid is safe to use here for water & still water
{
int spawnedCount = 0;
int x = packSpawnPosition.WorldX;
int y = packSpawnPosition.WorldY;
int z = packSpawnPosition.WorldZ;
for (int i = 0; i < 21; i++)
{
// Every 4th attempt reset the coordinates to the centre of the pack spawn
if (i % 4 == 0)
{
x = packSpawnPosition.WorldX;
y = packSpawnPosition.WorldY;
z = packSpawnPosition.WorldZ;
}
const int distance = 6;
x += world.Server.Rand.Next(distance) - world.Server.Rand.Next(distance);
y += world.Server.Rand.Next(1) - world.Server.Rand.Next(1);
z += world.Server.Rand.Next(distance) - world.Server.Rand.Next(distance);
if (CanMobTypeSpawnAtLocation(mobType, world, x, y, z))
{
AbsWorldCoords spawnPosition = new AbsWorldCoords(x + 0.5, y, z + 0.5);
// Check that no player is within a radius of 24 blocks of the spawnPosition
if (world.GetClosestPlayer(spawnPosition, 24.0) == null)
{
// Check that the squared distance is more than 576 from spawn (24 blocks)
if (spawnPosition.ToVector().DistanceSquared(new AbsWorldCoords(world.Spawn).ToVector()) > 576.0)
{
Mob newMob = MobFactory.CreateMob(world, world.Server.AllocateEntity(),
mobType);
if (newMob == null)
break;
newMob.Position = spawnPosition;
newMob.Yaw = world.Server.Rand.NextDouble()*360.0;
// Finally apply any mob specific rules about spawning here
if (newMob.CanSpawnHere())
{
//Event
EntitySpawnEventArgs e = new EntitySpawnEventArgs(newMob, newMob.Position);
world.Server.PluginManager.CallEvent(Plugins.Events.Event.EntitySpawn, e);
if (e.EventCanceled)
continue;
newMob.Position = e.Location;
//End Event
++spawnedCount;
MobSpecificInitialisation(newMob, world, spawnPosition);
world.Server.AddEntity(newMob);
if (spawnedCount >= newMob.MaxSpawnedPerGroup)
{
// This chunk is full - move to the next
break;
}
}
}
}
}
}
}
}
}
}
private static void MobSpecificInitialisation(Mob mob, WorldManager world, AbsWorldCoords coords)
{
// 1 in 100 chance to spawn a skeleton riding a spider
if (mob.Type == MobType.Spider && world.Server.Rand.Next(100) == 0)
{
LivingEntity skeleton = MobFactory.CreateMob(world, world.Server.AllocateEntity(), MobType.Skeleton);
skeleton.Position = coords;
skeleton.Yaw = mob.Yaw;
world.Server.AddEntity(skeleton);
skeleton.MountEntity(mob);
}
}
public BoundingBox(AbsWorldCoords minimum, AbsWorldCoords maximum)
: this(minimum.ToVector(), maximum.ToVector())
{
}
public EntitySpawnEventArgs(EntityBase entity, AbsWorldCoords Location)
: base(entity)
{
this.Location = Location;
}
public EntityMoveEventArgs(EntityBase entity, AbsWorldCoords newPosition, AbsWorldCoords oldPosition)
: base(entity)
{
NewPosition = newPosition;
OldPosition = oldPosition;
}
/// <summary>
/// Move less than four blocks to the given destination.
/// </summary>
/// <param name="x">The X coordinate of the target.</param>
/// <param name="y">The Y coordinate of the target.</param>
/// <param name="z">The Z coordinate of the target.</param>
public override void MoveTo(AbsWorldCoords absCoords)
{
base.MoveTo(absCoords);
UpdateEntities();
}
public static void HandlePacketAnimation(Client client, AnimationPacket packet)
{
Player p = client.Owner;
AbsWorldCoords absCoords = new AbsWorldCoords(p.Position.X, p.Position.Y, p.Position.Z);
foreach (Client c in p.Server.GetNearbyPlayers(p.World, absCoords))
{
if (c == client)
continue;
c.SendPacket(new AnimationPacket
{
Animation = packet.Animation,
PlayerId = p.EntityId
});
}
}
/// <summary>
/// Move less than four blocks to the given destination and rotate.
/// </summary>
/// <param name="x">The X coordinate of the target.</param>
/// <param name="y">The Y coordinate of the target.</param>
/// <param name="z">The Z coordinate of the target.</param>
/// <param name="yaw">The absolute yaw to which client should change.</param>
/// <param name="pitch">The absolute pitch to which client should change.</param>
public override void MoveTo(AbsWorldCoords absCoords, float yaw, float pitch)
{
base.MoveTo(absCoords, yaw, pitch);
UpdateEntities();
}
public static void HandlePacketPlayerPositionRotation(Client client, PlayerPositionRotationPacket packet)
{
double feetY = packet.Y - client.Owner.EyeHeight;
if(client.WaitForInitialPosAck)
{
AbsWorldCoords coords = new AbsWorldCoords(packet.X, feetY, packet.Z);
if(coords == client.Owner.LoginPosition)
{
client.WaitForInitialPosAck = false;
client.SendSecondLoginSequence();
}
}
else
{
double threshold = 0.001;
double diffX = Math.Abs(client.Owner.Position.X - packet.X);
double diffY = Math.Abs(client.Owner.Position.Y - feetY);
double diffZ = Math.Abs(client.Owner.Position.Z - packet.Z);
if (diffX < threshold && diffY < threshold && diffZ < threshold)
return;
client.Owner.MoveTo(new AbsWorldCoords(packet.X, feetY, packet.Z), packet.Yaw, packet.Pitch);
client.OnGround = packet.OnGround;
client.Stance = packet.Stance;
client.CheckAndUpdateChunks(packet.X, packet.Z);
}
}
public void SynchronizeEntities()
{
AbsWorldCoords absCoords = new AbsWorldCoords(Position.X, Position.Y, Position.Z);
foreach (EntityBase e in Server.GetNearbyEntities(World, absCoords))
{
if (e.Equals(this))
continue;
_client.SendPacket(new EntityTeleportPacket
{
EntityId = e.EntityId,
X = e.Position.X,
Y = e.Position.Y,
Z = e.Position.Z,
Yaw = e.PackedYaw,
Pitch = e.PackedPitch
});
}
}
public static void HandlePacketUseEntity(Client client, UseEntityPacket packet)
{
//Console.WriteLine(e.Packet.Target);
//this.SendMessage("You are interacting with " + e.Packet.Target + " " + e.Packet.LeftClick);
Player handledPlayer = client.Owner;
AbsWorldCoords absCoords = new AbsWorldCoords(handledPlayer.Position.X, handledPlayer.Position.Y, handledPlayer.Position.Z);
foreach (EntityBase eb in handledPlayer.Server.GetNearbyEntities(handledPlayer.World, absCoords))
{
if (eb.EntityId != packet.Target)
continue;
if (eb is Player)
{
Player player = (Player)eb;
if (packet.LeftClick)
{
handledPlayer.Attack(player);
}
else
{
// TODO: Store the object being ridden, so we can update player movement.
// This will ride the entity, sends -1 to dismount.
foreach (Client cl in handledPlayer.Server.GetNearbyPlayers(handledPlayer.World, absCoords))
{
cl.SendPacket(new AttachEntityPacket
{
EntityId = handledPlayer.EntityId,
VehicleId = player.EntityId
});
}
}
}
else if (eb is Mob)
{
Mob m = (Mob)eb;
if (packet.LeftClick)
{
handledPlayer.Attack(m);
}
else
{
// We are interacting with a Mob - tell it what we are using to interact with it
m.InteractWith(handledPlayer.Client, handledPlayer.Inventory.ActiveItem);
// TODO: move the following to appropriate mob locations
// TODO: Check Entity has saddle set.
//// This will ride the entity, sends -1 to dismount.
//foreach (Client c in Server.GetNearbyPlayers(World, Position.X, Position.Y, Position.Z))
//{
// c.PacketHandler.SendPacket(new AttachEntityPacket
// {
// EntityId = this.EntityId,
// VehicleId = c.EntityId
// });
//}
}
}
/*else
{
this.SendMessage(e.Packet.Target + " has no interaction handler!");
}*/
}
}
/// <summary>
/// Yields an enumerable of nearby entities, including players. Thread-safe.
/// </summary>
/// <param name="world">The world containing the coordinates.</param>
/// <param name="x">The center X coordinate.</param>
/// <param name="y">The center Y coordinate.</param>
/// <param name="z">The center Z coordinate.</param>
/// <returns>A lazy enumerable of nearby entities.</returns>
public IEnumerable<EntityBase> GetNearbyEntities(WorldManager world, AbsWorldCoords coords)
{
int radius = Settings.Default.SightRadius << 4;
foreach (EntityBase e in GetEntities())
{
if (e.World == world && Math.Abs(coords.X - e.Position.X) <= radius && Math.Abs(coords.Y - e.Position.Y) <= radius && Math.Abs(coords.Z - e.Position.Z) <= radius)
yield return e;
}
}
public void GlobalTimer(object state)
{
int time = Interlocked.Increment(ref _time);
if (!WaitInitialPositionRequest && (time % 5) == 0)
{
int factor = 1;
double rand1;
double rand2;
if ((rand1 = _rand.NextDouble()) > (rand2 = _rand.NextDouble()))
factor = -1;
double randX = (0.1 + rand1 * 0.2) * factor;
double randZ = (0.1 + rand2 * 0.2) * factor;
Position = new AbsWorldCoords(Position.X + randX, Position.Y, Position.Z + randZ);
SendPacket(new PlayerPacket{OnGround = true});
SendPacket(new PlayerPositionPacket{OnGround = true, X = Position.X, Y = Position.Y, Z = Position.Z});
}
if((time % 50) == 0)
{
SendPacket(new KeepAlivePacket{KeepAliveID = 1});
}
}
// TODO: This should be removed in favor of the one below
/// <summary>
/// Yields an enumerable of nearby players, thread-safe.
/// </summary>
/// <param name="world">The world containing the coordinates.</param>
/// <param name="absCoords">The center coordinates.</param>
/// <returns>A lazy enumerable of nearby players.</returns>
public IEnumerable<Client> GetNearbyPlayers(WorldManager world, AbsWorldCoords absCoords)
{
int radius = Settings.Default.SightRadius << 4;
foreach (Client c in GetAuthenticatedClients())
{
if (c.Owner.World == world && Math.Abs(absCoords.X - c.Owner.Position.X) <= radius && Math.Abs(absCoords.Z - c.Owner.Position.Z) <= radius)
yield return c;
}
}
public override void OnTeleportTo(AbsWorldCoords absCoords)
{
base.OnTeleportTo(absCoords);
CheckDrowning();
CheckSuffocation();
TouchNearbyBlocks();
}
public static UniversalCoords FromAbsWorld(AbsWorldCoords absWorldCoords)
{
return FromAbsWorld(absWorldCoords.X, absWorldCoords.Y, absWorldCoords.Z);
}
/// <summary>
/// Handles the respawning of the Client, called from respawn packet.
/// </summary>
public void HandleRespawn()
{
// This can no doubt be improved as waiting on the updatechunk thread is quite slow.
Server.RemoveEntity(this);
Position = new AbsWorldCoords(
World.Spawn.WorldX,
World.Spawn.WorldY + this.EyeHeight,
World.Spawn.WorldZ);
_client.StopUpdateChunks();
UpdateChunks(1, CancellationToken.None, false);
_client.SendPacket(new RespawnPacket { });
UpdateEntities();
//SendSpawnPosition();
_client.SendInitialPosition();
_client.SendInitialTime();
InitializeInventory();
InitializeHealth();
_client.ScheduleUpdateChunks();
Server.AddEntity(this);
}
/// <summary>
/// Ray traces the blocks along the ray. This method takes approx 0.1ms per 50-60 metres.
/// </summary>
/// <returns>
/// The first block hit
/// </returns>
/// <param name='rayStart'>
/// Ray start.
/// </param>
/// <param name='rayEnd'>
/// Ray end.
/// </param>
public RayTraceHitBlock RayTraceBlocks(AbsWorldCoords rayStart, AbsWorldCoords rayEnd)
{
UniversalCoords startCoord = UniversalCoords.FromAbsWorld(rayStart);
UniversalCoords endCoord = UniversalCoords.FromAbsWorld(rayEnd);
UniversalCoords previousPoint;
UniversalCoords currentPoint = startCoord;
Vector3 rayStartVec = rayStart.ToVector();
Vector3 rayEndVec = rayEnd.ToVector();
Vector3 stepVector = (rayEndVec - rayStartVec).Normalize();
bool xDirectionPositive = stepVector.X > 0;
bool yDirectionPositive = stepVector.Y > 0;
bool zDirectionPositive = stepVector.Z > 0;
Vector3 currentVec = rayStartVec;
previousPoint = currentPoint;
RayTraceHitBlock blockTrace = null;
int blockCheckCount = 0;
try
{
// Step along the ray looking for block collisions
while (true)
{
#region Check adjacent blocks if necessary (to prevent skipping over the corner of one)
bool xChanged = currentPoint.WorldX - previousPoint.WorldX != 0;
bool yChanged = currentPoint.WorldY - previousPoint.WorldY != 0;
bool zChanged = currentPoint.WorldZ - previousPoint.WorldZ != 0;
// When we change a coord, need to check which adjacent block also needs to be checked (to prevent missing blocks when jumping over their corners)
if (xChanged && yChanged && zChanged)
{
// -X,Y,Z
blockCheckCount++;
blockTrace = DoRayTraceBlock(UniversalCoords.FromWorld(previousPoint.WorldX, currentPoint.WorldY, currentPoint.WorldZ), rayStartVec, rayEndVec);
if (blockTrace != null)
return blockTrace;
// X,-Y,Z
blockCheckCount++;
blockTrace = DoRayTraceBlock(UniversalCoords.FromWorld(currentPoint.WorldX, previousPoint.WorldY, currentPoint.WorldZ), rayStartVec, rayEndVec);
if (blockTrace != null)
return blockTrace;
// X,Y,-Z
blockCheckCount++;
blockTrace = DoRayTraceBlock(UniversalCoords.FromWorld(currentPoint.WorldX, currentPoint.WorldY, previousPoint.WorldZ), rayStartVec, rayEndVec);
if (blockTrace != null)
return blockTrace;
// -X,Y,-Z
blockCheckCount++;
blockTrace = DoRayTraceBlock(UniversalCoords.FromWorld(previousPoint.WorldX, currentPoint.WorldY, previousPoint.WorldZ), rayStartVec, rayEndVec);
if (blockTrace != null)
return blockTrace;
// -X,-Y,Z
blockCheckCount++;
blockTrace = DoRayTraceBlock(UniversalCoords.FromWorld(previousPoint.WorldX, previousPoint.WorldY, currentPoint.WorldZ), rayStartVec, rayEndVec);
if (blockTrace != null)
return blockTrace;
// X,-Y,-Z
blockCheckCount++;
blockTrace = DoRayTraceBlock(UniversalCoords.FromWorld(currentPoint.WorldX, previousPoint.WorldY, previousPoint.WorldZ), rayStartVec, rayEndVec);
if (blockTrace != null)
return blockTrace;
}
else if (xChanged && zChanged)
{
// -X,Y,Z
blockCheckCount++;
blockTrace = DoRayTraceBlock(UniversalCoords.FromWorld(previousPoint.WorldX, currentPoint.WorldY, currentPoint.WorldZ), rayStartVec, rayEndVec);
if (blockTrace != null)
return blockTrace;
// X,Y,-Z
blockCheckCount++;
blockTrace = DoRayTraceBlock(UniversalCoords.FromWorld(currentPoint.WorldX, currentPoint.WorldY, previousPoint.WorldZ), rayStartVec, rayEndVec);
if (blockTrace != null)
return blockTrace;
}
else if (xChanged && yChanged)
{
// -X,Y,Z
blockCheckCount++;
blockTrace = DoRayTraceBlock(UniversalCoords.FromWorld(previousPoint.WorldX, currentPoint.WorldY, currentPoint.WorldZ), rayStartVec, rayEndVec);
if (blockTrace != null)
return blockTrace;
// X,-Y,Z
blockCheckCount++;
blockTrace = DoRayTraceBlock(UniversalCoords.FromWorld(currentPoint.WorldX, previousPoint.WorldY, currentPoint.WorldZ), rayStartVec, rayEndVec);
if (blockTrace != null)
return blockTrace;
}
else if (zChanged && yChanged)
{
// X,Y,-Z
blockCheckCount++;
blockTrace = DoRayTraceBlock(UniversalCoords.FromWorld(currentPoint.WorldX, currentPoint.WorldY, previousPoint.WorldZ), rayStartVec, rayEndVec);
if (blockTrace != null)
return blockTrace;
// X,-Y,Z
blockCheckCount++;
blockTrace = DoRayTraceBlock(UniversalCoords.FromWorld(currentPoint.WorldX, previousPoint.WorldY, currentPoint.WorldZ), rayStartVec, rayEndVec);
if (blockTrace != null)
return blockTrace;
}
#endregion
// Check the currentPoint
blockCheckCount++;
blockTrace = DoRayTraceBlock(currentPoint, rayStartVec, rayEndVec);
if (blockTrace != null)
return blockTrace;
if (currentPoint == endCoord)
{
//Console.WriteLine("Reach endCoord with no hits");
break;
}
#region Get the next coordinate
previousPoint = currentPoint;
do
{
currentVec += stepVector;
currentPoint = UniversalCoords.FromAbsWorld(currentVec.X, currentVec.Y, currentVec.Z);
} while(previousPoint == currentPoint);
// check we haven't gone past the endCoord
if ((xDirectionPositive && currentPoint.WorldX > endCoord.WorldX) || (!xDirectionPositive && currentPoint.WorldX < endCoord.WorldX) ||
(yDirectionPositive && currentPoint.WorldY > endCoord.WorldY) || (!yDirectionPositive && currentPoint.WorldY < endCoord.WorldY) ||
(zDirectionPositive && currentPoint.WorldZ > endCoord.WorldZ) || (!zDirectionPositive && currentPoint.WorldZ < endCoord.WorldZ))
{
//Console.WriteLine("Went past endCoord: {0}, {1}", startCoord, endCoord);
break;
}
#endregion
}
}
finally
{
//Console.WriteLine("Block check count {0}", blockCheckCount);
}
return null;
}
/// <summary>
/// Sends a packet in parallel to each nearby player.
/// </summary>
/// <param name="world">The world containing the coordinates.</param>
/// <param name="absCoords>The center coordinates.</param>
/// <param name="packet">The packet to send</param>
public void SendPacketToNearbyPlayers(WorldManager world, AbsWorldCoords absCoords, Packet packet)
{
Parallel.ForEach(this.GetNearbyPlayers(world, absCoords), (client) =>
{
client.SendPacket(packet);
});
}
