private void BeginDigging(Coordinates3D target)
{
// TODO: Adjust digging time to compensate for latency
var block = Game.Client.World.GetBlockId(target);
Game.TargetBlock = target;
Game.StartDigging = DateTime.UtcNow;
Game.EndDigging = Game.StartDigging.AddMilliseconds(
BlockProvider.GetHarvestTime(block,
Game.Client.Inventory.Hotbar[Game.Client.HotBarSelection].Id, out _));
Game.Client.QueuePacket(new PlayerDiggingPacket(
PlayerDiggingPacket.Action.StartDigging,
Game.TargetBlock.X, (sbyte)Game.TargetBlock.Y, Game.TargetBlock.Z,
Game.HighlightedBlockFace));
NextAnimation = DateTime.UtcNow.AddSeconds(0.25);
}
public static void HandlePlayerDiggingPacket(IPacket _packet, IRemoteClient _client, IMultiplayerServer server)
{
var packet = (PlayerDiggingPacket)_packet;
var client = (RemoteClient)_client;
var world = _client.World;
var position = new Coordinates3D(packet.X, packet.Y, packet.Z);
var descriptor = world.GetBlockData(position);
var provider = server.BlockRepository.GetBlockProvider(descriptor.ID);
short damage;
int time;
switch (packet.PlayerAction)
{
case PlayerDiggingPacket.Action.DropItem:
// Throwing item
if (client.SelectedItem.Empty)
{
break;
}
var spawned = client.SelectedItem;
spawned.Count = 1;
var inventory = client.SelectedItem;
inventory.Count--;
var item = new ItemEntity(client.Entity.Position + new Vector3(0, PlayerEntity.Height, 0), spawned);
item.Velocity = MathHelper.FowardVector(client.Entity.Yaw) * 0.3;
client.Inventory[client.SelectedSlot] = inventory;
server.GetEntityManagerForWorld(client.World).SpawnEntity(item);
break;
case PlayerDiggingPacket.Action.StartDigging:
foreach (var nearbyClient in server.Clients) // TODO: Send this repeatedly during the course of the digging
{
var c = (RemoteClient)nearbyClient;
if (c.KnownEntities.Contains(client.Entity))
{
c.QueuePacket(new AnimationPacket(client.Entity.EntityID, AnimationPacket.PlayerAnimation.SwingArm));
}
}
if (provider == null)
{
server.SendMessage(ChatColor.Red + "WARNING: block provider for ID {0} is null (player digging)", descriptor.ID);
}
else
{
provider.BlockLeftClicked(descriptor, packet.Face, world, client);
}
// "But why on Earth does this behavior change if you use shears on leaves?"
// "This is poor seperation of concerns"
// "Let me do a git blame and flame whoever wrote the next line"
// To answer all of those questions, here:
// Minecraft sends a player digging packet when the player starts and stops digging a block (two packets)
// However, it only sends ONE packet if the block would be mined immediately - which usually is only the case
// for blocks that have a hardness equal to zero.
// The exception to this rule is shears on leaves. Leaves normally have a hardness of 0.2, but when you mine them
// using shears the client only sends the start digging packet and expects them to be mined immediately.
// So if you want to blame anyone, send flames to Notch for the stupid idea of not sending "stop digging" packets
// for hardness == 0 blocks.
time = BlockProvider.GetHarvestTime(descriptor.ID, client.SelectedItem.ID, out damage);
if (time <= 20)
{
provider.BlockMined(descriptor, packet.Face, world, client);
break;
}
client.ExpectedDigComplete = DateTime.UtcNow.AddMilliseconds(time);
break;
case PlayerDiggingPacket.Action.StopDigging:
foreach (var nearbyClient in server.Clients)
{
var c = (RemoteClient)nearbyClient;
if (c.KnownEntities.Contains(client.Entity))
{
c.QueuePacket(new AnimationPacket(client.Entity.EntityID, AnimationPacket.PlayerAnimation.None));
}
}
if (provider != null && descriptor.ID != 0)
{
time = BlockProvider.GetHarvestTime(descriptor.ID, client.SelectedItem.ID, out damage);
if (time <= 20)
{
break; // Already handled earlier
}
var diff = (DateTime.UtcNow - client.ExpectedDigComplete).TotalMilliseconds;
if (diff > -100) // Allow a small tolerance
{
provider.BlockMined(descriptor, packet.Face, world, client);
// Damage the item
if (damage != 0)
{
var tool = server.ItemRepository.GetItemProvider(client.SelectedItem.ID) as ToolItem;
if (tool != null && tool.Uses != -1)
{
var slot = client.SelectedItem;
slot.Metadata += damage;
if (slot.Metadata >= tool.Uses)
{
slot.Count = 0; // Destroy item
}
client.Inventory[client.SelectedSlot] = slot;
}
}
}
}
break;
}
}