void WritePacket()
{
data[0] = Opcode.LevelDataChunk;
NetUtils.WriteU16((ushort)index, data, 1);
data[1027] = (byte)(100 * (float)position / length);
p.Send(data);
index = 0;
}
public static byte[] GetPositionPacket(PlayerBot bot)
{
// TODO: not sure why bots only work with absolute packets
byte[] buffer = new byte[10];
buffer[0] = Opcode.EntityTeleport;
buffer[1] = bot.id;
NetUtils.WriteU16(bot.pos[0], buffer, 2);
NetUtils.WriteU16(bot.pos[1], buffer, 4);
NetUtils.WriteU16(bot.pos[2], buffer, 6);
buffer[8] = bot.rot[0];
buffer[9] = bot.rot[1];
return(buffer);
}
public void SendPos(byte id, ushort x, ushort y, ushort z, byte rotx, byte roty)
{
if (x < 0)
{
x = 32;
}
if (y < 0)
{
y = 32;
}
if (z < 0)
{
z = 32;
}
if (x > level.Width * 32)
{
x = (ushort)(level.Width * 32 - 32);
}
if (z > level.Length * 32)
{
z = (ushort)(level.Length * 32 - 32);
}
if (x > 32767)
{
x = 32730;
}
if (y > 32767)
{
y = 32730;
}
if (z > 32767)
{
z = 32730;
}
pos[0] = x; pos[1] = y; pos[2] = z;
rot[0] = rotx; rot[1] = roty;
byte[] buffer = new byte[10];
buffer[0] = Opcode.EntityTeleport;
buffer[1] = id;
NetUtils.WriteU16(x, buffer, 2);
NetUtils.WriteU16(y, buffer, 4);
NetUtils.WriteU16(z, buffer, 6);
buffer[8] = rotx;
buffer[9] = roty;
SendRaw(buffer);
}
public void SendSpawn(byte id, string name, ushort x, ushort y, ushort z, byte rotx, byte roty)
{
byte[] buffer = new byte[74];
buffer[0] = Opcode.AddEntity;
buffer[1] = id;
NetUtils.WriteAscii(name.TrimEnd('+'), buffer, 2);
NetUtils.WriteU16(x, buffer, 66);
NetUtils.WriteU16(y, buffer, 68);
NetUtils.WriteU16(z, buffer, 70);
buffer[72] = rotx;
buffer[73] = roty;
SendRaw(buffer);
if (hasChangeModel)
{
UpdateModels();
}
}
public void SendBlockchange(ushort x, ushort y, ushort z, BlockID block)
{
//if (x < 0 || y < 0 || z < 0) return;
if (x >= level.Width || y >= level.Height || z >= level.Length)
{
return;
}
byte[] buffer = new byte[hasExtBlocks ? 9 : 8];
buffer[0] = Opcode.SetBlock;
NetUtils.WriteU16(x, buffer, 1);
NetUtils.WriteU16(y, buffer, 3);
NetUtils.WriteU16(z, buffer, 5);
BlockID raw = ConvertBlock(block);
NetUtils.WriteBlock(raw, buffer, 7, hasExtBlocks);
Socket.Send(buffer, SendFlags.LowPriority);
}
public void SendExtAddEntity2(byte id, string skinName, string displayName, ushort x, ushort y, ushort z, byte rotx, byte roty)
{
byte[] buffer = new byte[138];
buffer[0] = Opcode.CpeExtAddEntity2;
buffer[1] = id;
NetUtils.WriteAscii(displayName.TrimEnd('+'), buffer, 2);
NetUtils.WriteAscii(skinName.TrimEnd('+'), buffer, 66);
NetUtils.WriteU16(x, buffer, 130);
NetUtils.WriteU16(y, buffer, 132);
NetUtils.WriteU16(z, buffer, 134);
buffer[136] = rotx;
buffer[137] = roty;
SendRaw(buffer);
if (hasChangeModel)
{
UpdateModels();
}
}
public void SendBlockchange(ushort x, ushort y, ushort z, ExtBlock block)
{
//if (x < 0 || y < 0 || z < 0) return;
if (x >= level.Width || y >= level.Height || z >= level.Length)
{
return;
}
byte[] buffer = new byte[8];
buffer[0] = Opcode.SetBlock;
NetUtils.WriteU16(x, buffer, 1);
NetUtils.WriteU16(y, buffer, 3);
NetUtils.WriteU16(z, buffer, 5);
byte raw;
if (block.BlockID == Block.custom_block)
{
raw = hasBlockDefs ? block.ExtID : level.RawFallback(block.ExtID);
}
else
{
raw = Block.Convert(block.BlockID);
}
if (!hasCustomBlocks)
{
raw = Block.ConvertCPE(raw); // client doesn't support CPE
}
// Custom block replaced a core block
if (!hasBlockDefs && raw < Block.CpeCount)
{
BlockDefinition def = level.CustomBlockDefs[raw];
if (def != null)
{
raw = def.FallBack;
}
}
buffer[7] = raw;
Socket.SendLowPriority(buffer);
}
public static byte[] MakeSelection(byte id, string label, Vec3U16 p1, Vec3U16 p2,
short r, short g, short b, short opacity)
{
byte[] buffer = new byte[86];
buffer[0] = Opcode.CpeMakeSelection;
buffer[1] = id;
NetUtils.WriteAscii(label, buffer, 2);
NetUtils.WriteU16(p1.X, buffer, 66);
NetUtils.WriteU16(p1.Y, buffer, 68);
NetUtils.WriteU16(p1.Z, buffer, 70);
NetUtils.WriteU16(p2.X, buffer, 72);
NetUtils.WriteU16(p2.Y, buffer, 74);
NetUtils.WriteU16(p2.Z, buffer, 76);
NetUtils.WriteI16(r, buffer, 78);
NetUtils.WriteI16(g, buffer, 80);
NetUtils.WriteI16(b, buffer, 82);
NetUtils.WriteI16(opacity, buffer, 84);
return(buffer);
}
/// <summary> Sends a packet indicating an entity was spawned in the current map
/// at the given absolute position + coordinates </summary>
public void SendSpawn(byte id, string name, ushort x, ushort y, ushort z, byte rotx, byte roty)
{
// NOTE: Fix for standard clients
if (id == Entities.SelfID)
{
y -= 22;
}
byte[] buffer = new byte[74];
buffer[0] = Opcode.AddEntity;
buffer[1] = id;
NetUtils.WriteAscii(name.TrimEnd('+'), buffer, 2);
NetUtils.WriteU16(x, buffer, 66);
NetUtils.WriteU16(y, buffer, 68);
NetUtils.WriteU16(z, buffer, 70);
buffer[72] = rotx;
buffer[73] = roty;
Send(buffer);
if (hasChangeModel)
{
UpdateModels();
}
}
public static byte[] GetPositionPacket(byte id, ushort[] pos, ushort[] oldpos,
byte[] rot, byte[] oldrot, byte realPitch, bool bot)
{
bool posChanged = false, oriChanged = false, absPosUpdate = false;
if (oldpos[0] != pos[0] || oldpos[1] != pos[1] || oldpos[2] != pos[2])
{
posChanged = true;
}
if (oldrot[0] != rot[0] || oldrot[1] != rot[1])
{
oriChanged = true;
}
if (Math.Abs(pos[0] - oldpos[0]) > 32 || Math.Abs(pos[1] - oldpos[1]) > 32 || Math.Abs(pos[2] - oldpos[2]) > 32)
{
absPosUpdate = true;
}
// TODO: not sure why this is necessary for bots
if (bot)
{
absPosUpdate = true;
}
byte[] buffer = null;
if (absPosUpdate)
{
buffer = new byte[10];
buffer[0] = Opcode.EntityTeleport;
buffer[1] = id;
NetUtils.WriteU16(pos[0], buffer, 2);
NetUtils.WriteU16(pos[1], buffer, 4);
NetUtils.WriteU16(pos[2], buffer, 6);
buffer[8] = rot[0];
buffer[9] = realPitch;
}
else if (posChanged && oriChanged)
{
buffer = new byte[7];
buffer[0] = Opcode.RelPosAndOrientationUpdate;
buffer[1] = id;
buffer[2] = (byte)(pos[0] - oldpos[0]);
buffer[3] = (byte)(pos[1] - oldpos[1]);
buffer[4] = (byte)(pos[2] - oldpos[2]);
buffer[5] = rot[0];
buffer[6] = realPitch;
}
else if (posChanged)
{
buffer = new byte[5];
buffer[0] = Opcode.RelPosUpdate;
buffer[1] = id;
buffer[2] = (byte)(pos[0] - oldpos[0]);
buffer[3] = (byte)(pos[1] - oldpos[1]);
buffer[4] = (byte)(pos[2] - oldpos[2]);
}
else if (oriChanged)
{
buffer = new byte[4];
buffer[0] = Opcode.OrientationUpdate;
buffer[1] = id;
buffer[2] = rot[0];
buffer[3] = realPitch;
}
return(buffer);
}
