mirror of
https://github.com/ClassiCube/ClassiCube.git
synced 2025-10-05 12:07:25 -04:00
560 lines
20 KiB
C#
560 lines
20 KiB
C#
using System;
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using ClassicalSharp.Hotkeys;
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using ClassicalSharp.Network;
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using ClassicalSharp.TexturePack;
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using OpenTK;
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using OpenTK.Input;
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namespace ClassicalSharp {
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public partial class NetworkProcessor : INetworkProcessor {
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#region Writing
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public override void SendPlayerClick( MouseButton button, bool buttonDown, byte targetId, PickedPos pos ) {
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Player p = game.LocalPlayer;
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MakePlayerClick( (byte)button, buttonDown, p.HeadYawDegrees, p.PitchDegrees, targetId,
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pos.BlockPos, pos.BlockFace );
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SendPacket();
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}
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void MakeExtInfo( string appName, int extensionsCount ) {
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writer.WriteUInt8( (byte)PacketId.CpeExtInfo );
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writer.WriteString( appName );
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writer.WriteInt16( (short)extensionsCount );
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}
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void MakeExtEntry( string extensionName, int extensionVersion ) {
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writer.WriteUInt8( (byte)PacketId.CpeExtEntry );
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writer.WriteString( extensionName );
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writer.WriteInt32( extensionVersion );
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}
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void MakeCustomBlockSupportLevel( byte version ) {
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writer.WriteUInt8( (byte)PacketId.CpeCustomBlockSupportLevel );
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writer.WriteUInt8( version );
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}
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void MakePlayerClick( byte button, bool buttonDown, float yaw, float pitch, byte targetEntity,
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Vector3I targetPos, CpeBlockFace targetFace ) {
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writer.WriteUInt8( (byte)PacketId.CpePlayerClick );
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writer.WriteUInt8( button );
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writer.WriteUInt8( buttonDown ? (byte)0 : (byte)1 );
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writer.WriteInt16( (short)Utils.DegreesToPacked( yaw, 65536 ) );
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writer.WriteInt16( (short)Utils.DegreesToPacked( pitch, 65536 ) );
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writer.WriteUInt8( targetEntity );
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writer.WriteInt16( (short)targetPos.X );
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writer.WriteInt16( (short)targetPos.Y );
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writer.WriteInt16( (short)targetPos.Z );
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writer.WriteUInt8( (byte)targetFace );
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}
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#endregion
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#region Reading
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int cpeServerExtensionsCount;
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bool sendHeldBlock, useMessageTypes;
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int envMapApperanceVer = 2;
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static string[] clientExtensions = {
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"ClickDistance", "CustomBlocks", "HeldBlock", "EmoteFix", "TextHotKey", "ExtPlayerList",
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"EnvColors", "SelectionCuboid", "BlockPermissions", "ChangeModel", "EnvMapAppearance",
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"EnvWeatherType", "HackControl", "MessageTypes", "PlayerClick", "FullCP437",
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"LongerMessages", "BlockDefinitions", "BlockDefinitionsExt",
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// proposals
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"BulkBlockUpdate", "TextColors",
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};
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void HandleCpeExtInfo() {
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string appName = reader.ReadAsciiString();
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game.Chat.Add( "Server software: " + appName );
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// Workaround for MCGalaxy that send ExtEntry sync but ExtInfoAsync. This means
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// ExtEntry may sometimes arrive before ExtInfo, and thus we have to use += instead of =
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cpeServerExtensionsCount += reader.ReadInt16();
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SendCpeExtInfoReply();
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}
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void HandleCpeExtEntry() {
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string extName = reader.ReadAsciiString();
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int extVersion = reader.ReadInt32();
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Utils.LogDebug( "cpe ext: {0}, {1}", extName, extVersion );
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if( extName == "HeldBlock" ) {
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sendHeldBlock = true;
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} else if( extName == "MessageTypes" ) {
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useMessageTypes = true;
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} else if( extName == "ExtPlayerList" ) {
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UsingExtPlayerList = true;
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} else if( extName == "PlayerClick" ) {
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UsingPlayerClick = true;
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} else if( extName == "EnvMapAppearance" ) {
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envMapApperanceVer = extVersion;
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if( extVersion == 2 ) {
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handlers[(int)PacketId.CpeEnvSetMapApperance] = HandleCpeEnvSetMapAppearance2;
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packetSizes[(int)PacketId.CpeEnvSetMapApperance] += 4;
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}
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} else if( extName == "LongerMessages" ) {
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ServerSupportsPartialMessages = true;
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} else if( extName == "FullCP437" ) {
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ServerSupportsFullCP437 = true;
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}
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cpeServerExtensionsCount--;
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SendCpeExtInfoReply();
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}
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void SendCpeExtInfoReply() {
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if( cpeServerExtensionsCount != 0 ) return;
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int count = clientExtensions.Length;
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if( !game.AllowCustomBlocks ) count -= 2;
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MakeExtInfo( Program.AppName, count );
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SendPacket();
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for( int i = 0; i < clientExtensions.Length; i++ ) {
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string name = clientExtensions[i];
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int ver = name == "ExtPlayerList" ? 2 : 1;
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if( name == "EnvMapAppearance" ) ver = envMapApperanceVer;
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if( !game.AllowCustomBlocks && name.StartsWith( "BlockDefinitions" ) )
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continue;
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MakeExtEntry( name, ver );
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SendPacket();
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}
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}
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void HandleCpeSetClickDistance() {
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game.LocalPlayer.ReachDistance = reader.ReadInt16() / 32f;
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}
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void HandleCpeCustomBlockSupportLevel() {
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byte supportLevel = reader.ReadUInt8();
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MakeCustomBlockSupportLevel( 1 );
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SendPacket();
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supportsCustomBlocks = true;
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if( supportLevel == 1 ) {
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for( int i = (int)Block.CobblestoneSlab; i <= (int)Block.StoneBrick; i++ ) {
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game.Inventory.CanPlace[i] = true;
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game.Inventory.CanDelete[i] = true;
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}
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game.Events.RaiseBlockPermissionsChanged();
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} else {
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Utils.LogDebug( "Server's block support level is {0}, this client only supports level 1.", supportLevel );
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Utils.LogDebug( "You won't be able to see or use blocks from levels above level 1" );
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}
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}
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void HandleCpeHoldThis() {
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byte blockType = reader.ReadUInt8();
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bool canChange = reader.ReadUInt8() == 0;
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game.Inventory.CanChangeHeldBlock = true;
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game.Inventory.HeldBlock = (Block)blockType;
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game.Inventory.CanChangeHeldBlock = canChange;
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}
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void HandleCpeSetTextHotkey() {
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string label = reader.ReadAsciiString();
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string action = reader.ReadAsciiString();
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int keyCode = reader.ReadInt32();
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byte keyMods = reader.ReadUInt8();
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if( keyCode < 0 || keyCode > 255 ) return;
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Key key = LwjglToKey.Map[keyCode];
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if( key == Key.Unknown ) return;
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Console.WriteLine( "CPE Hotkey added: " + key + "," + keyMods + " : " + action );
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if( action == "" ) {
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game.InputHandler.Hotkeys.RemoveHotkey( key, keyMods );
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} else if( action[action.Length - 1] == '\n' ) {
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action = action.Substring( 0, action.Length - 1 );
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game.InputHandler.Hotkeys.AddHotkey( key, keyMods, action, false );
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} else { // more input needed by user
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game.InputHandler.Hotkeys.AddHotkey( key, keyMods, action, true );
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}
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}
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void HandleCpeExtAddPlayerName() {
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short nameId = reader.ReadInt16();
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string playerName = Utils.StripColours( reader.ReadAsciiString() );
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playerName = Utils.RemoveEndPlus( playerName );
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string listName = reader.ReadAsciiString();
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listName = Utils.RemoveEndPlus( listName );
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string groupName = reader.ReadAsciiString();
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byte groupRank = reader.ReadUInt8();
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// Workaround for some servers that don't cast signed bytes to unsigned, before converting them to shorts.
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if( nameId < 0 )
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nameId += 256;
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if( nameId >= 0 && nameId <= 255 )
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AddCpeInfo( (byte)nameId, playerName, listName, groupName, groupRank );
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}
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void AddCpeInfo( byte nameId, string playerName, string listName, string groupName, byte groupRank ) {
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CpeListInfo oldInfo = game.CpePlayersList[nameId];
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CpeListInfo info = new CpeListInfo( (byte)nameId, playerName, listName, groupName, groupRank );
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game.CpePlayersList[nameId] = info;
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if( oldInfo != null ) {
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// Only redraw the CPE player list info if something changed.
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if( info.PlayerName != oldInfo.PlayerName || info.ListName != oldInfo.ListName ||
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info.GroupName != oldInfo.GroupName || info.GroupRank != oldInfo.GroupRank ) {
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game.EntityEvents.RaiseCpeListInfoChanged( (byte)nameId );
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}
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} else {
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game.EntityEvents.RaiseCpeListInfoAdded( (byte)nameId );
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}
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}
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void HandleCpeExtAddEntity() {
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byte entityId = reader.ReadUInt8();
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string displayName = reader.ReadAsciiString();
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displayName = Utils.RemoveEndPlus( displayName );
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string skinName = reader.ReadAsciiString();
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skinName = Utils.RemoveEndPlus( skinName );
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AddEntity( entityId, displayName, skinName, false );
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}
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void HandleCpeExtRemovePlayerName() {
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short nameId = reader.ReadInt16();
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// Workaround for some servers that don't cast signed bytes to unsigned, before converting them to shorts.
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if( nameId < 0 )
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nameId += 256;
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if( nameId >= 0 && nameId <= 255 ) {
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game.EntityEvents.RaiseCpeListInfoRemoved( (byte)nameId );
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game.CpePlayersList[nameId] = null;
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}
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}
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void HandleCpeMakeSelection() {
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byte selectionId = reader.ReadUInt8();
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string label = reader.ReadAsciiString();
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short startX = reader.ReadInt16();
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short startY = reader.ReadInt16();
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short startZ = reader.ReadInt16();
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short endX = reader.ReadInt16();
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short endY = reader.ReadInt16();
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short endZ = reader.ReadInt16();
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byte r = (byte)reader.ReadInt16();
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byte g = (byte)reader.ReadInt16();
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byte b = (byte)reader.ReadInt16();
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byte a = (byte)reader.ReadInt16();
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Vector3I p1 = Vector3I.Min( startX, startY, startZ, endX, endY, endZ );
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Vector3I p2 = Vector3I.Max( startX, startY, startZ, endX, endY, endZ );
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FastColour col = new FastColour( r, g, b, a );
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game.SelectionManager.AddSelection( selectionId, p1, p2, col );
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}
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void HandleCpeRemoveSelection() {
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byte selectionId = reader.ReadUInt8();
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game.SelectionManager.RemoveSelection( selectionId );
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}
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void HandleCpeEnvColours() {
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byte variable = reader.ReadUInt8();
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short red = reader.ReadInt16();
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short green = reader.ReadInt16();
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short blue = reader.ReadInt16();
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bool invalid = red < 0 || red > 255 || green < 0 || green > 255 || blue < 0 || blue > 255;
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FastColour col = new FastColour( red, green, blue );
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if( variable == 0 ) {
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game.Map.SetSkyColour( invalid ? Map.DefaultSkyColour : col );
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} else if( variable == 1 ) {
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game.Map.SetCloudsColour( invalid ? Map.DefaultCloudsColour : col );
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} else if( variable == 2 ) {
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game.Map.SetFogColour( invalid ? Map.DefaultFogColour : col );
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} else if( variable == 3 ) {
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game.Map.SetShadowlight( invalid ? Map.DefaultShadowlight : col );
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} else if( variable == 4 ) {
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game.Map.SetSunlight( invalid ? Map.DefaultSunlight : col );
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}
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}
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void HandleCpeSetBlockPermission() {
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byte blockId = reader.ReadUInt8();
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bool canPlace = reader.ReadUInt8() != 0;
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bool canDelete = reader.ReadUInt8() != 0;
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Inventory inv = game.Inventory;
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if( blockId == 0 ) {
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int count = supportsCustomBlocks ? BlockInfo.CpeBlocksCount
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: BlockInfo.OriginalBlocksCount;
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for( int i = 1; i < count; i++ ) {
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inv.CanPlace.SetNotOverridable( canPlace, i );
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inv.CanDelete.SetNotOverridable( canDelete, i );
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}
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} else {
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inv.CanPlace.SetNotOverridable( canPlace, blockId );
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inv.CanDelete.SetNotOverridable( canDelete, blockId );
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}
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game.Events.RaiseBlockPermissionsChanged();
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}
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void HandleCpeChangeModel() {
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byte playerId = reader.ReadUInt8();
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string modelName = reader.ReadAsciiString().ToLowerInvariant();
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Player player = game.Players[playerId];
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if( player != null ) {
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player.SetModel( modelName );
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}
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}
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void HandleCpeEnvSetMapApperance() {
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string url = reader.ReadAsciiString();
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game.Map.SetSidesBlock( (Block)reader.ReadUInt8() );
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game.Map.SetEdgeBlock( (Block)reader.ReadUInt8() );
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game.Map.SetEdgeLevel( reader.ReadInt16() );
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if( !game.AllowServerTextures )
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return;
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if( url == String.Empty ) {
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TexturePackExtractor extractor = new TexturePackExtractor();
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extractor.Extract( game.DefaultTexturePack, game );
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} else if( Utils.IsUrlPrefix( url ) ) {
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if( !game.AcceptedUrls.HasUrl( url ) && !game.DeniedUrls.HasUrl( url ) ) {
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game.AsyncDownloader.RetrieveContentLength( url, true, "CL_" + url );
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game.ShowWarning( new WarningScreen(
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game, "CL_" + url, true, "Do you want to download the server's texture pack?",
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DownloadTexturePack, null, WarningScreenTick,
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"Texture pack url:", url,
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"Download size: Determining..." ) );
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} else {
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DownloadTexturePack( url );
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}
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}
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Utils.LogDebug( "Image url: " + url );
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}
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void HandleCpeEnvSetMapAppearance2() {
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HandleCpeEnvSetMapApperance();
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game.Map.SetCloudsLevel( reader.ReadInt16() );
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short maxViewDist = reader.ReadInt16();
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game.MaxViewDistance = maxViewDist <= 0 ? 32768 : maxViewDist;
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game.SetViewDistance( game.UserViewDistance, false );
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}
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void DownloadTexturePack( WarningScreen screen ) {
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DownloadTexturePack( ((string)screen.Metadata).Substring( 3 ) );
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}
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void DownloadTexturePack( string url ) {
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if( game.DeniedUrls.HasUrl( url ) ) return;
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game.Animations.Dispose();
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DateTime lastModified = TextureCache.GetLastModifiedFromCache( url );
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if( url.Contains( ".zip" ) )
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game.AsyncDownloader.DownloadData( url, true, "texturePack", lastModified );
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else
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game.AsyncDownloader.DownloadImage( url, true, "terrain", lastModified );
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}
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void WarningScreenTick( WarningScreen screen ) {
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string identifier = (string)screen.Metadata;
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DownloadedItem item;
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if( !game.AsyncDownloader.TryGetItem( identifier, out item ) || item.Data == null ) return;
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long contentLength = (long)item.Data;
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if( contentLength <= 0 ) return;
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string url = identifier.Substring( 3 );
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float contentLengthMB = (contentLength / 1024f / 1024f );
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screen.SetText( "Do you want to download the server's texture pack?",
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"Texture pack url:", url,
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"Download size: " + contentLengthMB.ToString( "F3" ) + " MB" );
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}
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void HandleCpeEnvWeatherType() {
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game.Map.SetWeather( (Weather)reader.ReadUInt8() );
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}
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void HandleCpeHackControl() {
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LocalPlayer p = game.LocalPlayer;
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p.CanFly = reader.ReadUInt8() != 0;
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p.CanNoclip = reader.ReadUInt8() != 0;
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p.CanSpeed = reader.ReadUInt8() != 0;
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p.CanRespawn = reader.ReadUInt8() != 0;
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p.CanUseThirdPersonCamera = reader.ReadUInt8() != 0;
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p.CheckHacksConsistency();
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float jumpHeight = reader.ReadInt16() / 32f;
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if( jumpHeight < 0 ) jumpHeight = 1.4f;
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p.CalculateJumpVelocity( jumpHeight );
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p.serverJumpVel = p.jumpVel;
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game.Events.RaiseHackPermissionsChanged();
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}
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void HandleCpeExtAddEntity2() {
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byte entityId = reader.ReadUInt8();
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string displayName = reader.ReadAsciiString();
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string skinName = reader.ReadAsciiString();
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AddEntity( entityId, displayName, skinName, true );
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}
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void HandleCpeDefineBlock() {
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if( !game.AllowCustomBlocks ) {
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SkipPacketData( PacketId.CpeDefineBlock ); return;
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}
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byte block = HandleCpeDefineBlockCommonStart();
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BlockInfo info = game.BlockInfo;
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byte shape = reader.ReadUInt8();
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if( shape == 0 ) {
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info.IsSprite[block] = true;
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info.IsOpaque[block] = false;
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info.IsTransparent[block] = true;
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} else if( shape <= 16 ) {
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info.MaxBB[block].Y = shape / 16f;
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}
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HandleCpeDefineBlockCommonEnd( block );
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// Update sprite BoundingBox if necessary
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if( info.IsSprite[block] ) {
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using( FastBitmap dst = new FastBitmap( game.TerrainAtlas.AtlasBitmap, true, true ) )
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info.RecalculateBB( block, dst );
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}
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}
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void HandleCpeRemoveBlockDefinition() {
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if( !game.AllowCustomBlocks ) {
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SkipPacketData( PacketId.CpeRemoveBlockDefinition ); return;
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}
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game.BlockInfo.ResetBlockInfo( reader.ReadUInt8(), true );
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game.BlockInfo.InitLightOffsets();
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}
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void HandleCpeDefineBlockExt() {
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if( !game.AllowCustomBlocks ) {
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SkipPacketData( PacketId.CpeDefineBlockExt ); return;
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}
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byte block = HandleCpeDefineBlockCommonStart();
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BlockInfo info = game.BlockInfo;
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Vector3 min, max;
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min.X = reader.ReadUInt8() / 16f; Utils.Clamp( ref min.X, 0, 15/16f );
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min.Y = reader.ReadUInt8() / 16f; Utils.Clamp( ref min.Y, 0, 15/16f );
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min.Z = reader.ReadUInt8() / 16f; Utils.Clamp( ref min.Z, 0, 15/16f );
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max.X = reader.ReadUInt8() / 16f; Utils.Clamp( ref max.X, 1/16f, 1 );
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max.Y = reader.ReadUInt8() / 16f; Utils.Clamp( ref max.Y, 1/16f, 1 );
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max.Z = reader.ReadUInt8() / 16f; Utils.Clamp( ref max.Z, 1/16f, 1 );
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info.MinBB[block] = min;
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info.MaxBB[block] = max;
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HandleCpeDefineBlockCommonEnd( block );
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}
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byte HandleCpeDefineBlockCommonStart() {
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byte block = reader.ReadUInt8();
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BlockInfo info = game.BlockInfo;
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info.ResetBlockInfo( block, false );
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info.Name[block] = reader.ReadAsciiString();
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info.CollideType[block] = (BlockCollideType)reader.ReadUInt8();
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if( info.CollideType[block] != BlockCollideType.Solid ) {
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info.IsTransparent[block] = true;
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info.IsOpaque[block] = false;
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}
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info.SpeedMultiplier[block] = (float)Math.Pow( 2, (reader.ReadUInt8() - 128) / 64f );
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info.SetTop( reader.ReadUInt8(), (Block)block );
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info.SetSide( reader.ReadUInt8(), (Block)block );
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info.SetBottom( reader.ReadUInt8(), (Block)block );
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info.BlocksLight[block] = reader.ReadUInt8() == 0;
|
|
byte sound = reader.ReadUInt8();
|
|
if( sound < breakSnds.Length ) {
|
|
info.StepSounds[block] = stepSnds[sound];
|
|
info.DigSounds[block] = breakSnds[sound];
|
|
}
|
|
info.FullBright[block] = reader.ReadUInt8() != 0;
|
|
return block;
|
|
}
|
|
|
|
void HandleCpeDefineBlockCommonEnd( byte block ) {
|
|
BlockInfo info = game.BlockInfo;
|
|
byte blockDraw = reader.ReadUInt8();
|
|
if( blockDraw == 1 ) {
|
|
info.IsTransparent[block] = true;
|
|
} else if( blockDraw == 2 ) {
|
|
info.IsTransparent[block] = true;
|
|
info.CullWithNeighbours[block] = false;
|
|
} else if( blockDraw == 3 ) {
|
|
info.IsTranslucent[block] = true;
|
|
} else if( blockDraw == 4 ) {
|
|
info.IsTransparent[block] = true;
|
|
info.IsAir[block] = true;
|
|
}
|
|
if( info.IsOpaque[block] )
|
|
info.IsOpaque[block] = blockDraw == 0;
|
|
|
|
byte fogDensity = reader.ReadUInt8();
|
|
info.FogDensity[block] = fogDensity == 0 ? 0 : (fogDensity + 1) / 128f;
|
|
info.FogColour[block] = new FastColour(
|
|
reader.ReadUInt8(), reader.ReadUInt8(), reader.ReadUInt8() );
|
|
info.SetupCullingCache( block );
|
|
info.InitLightOffsets();
|
|
}
|
|
|
|
const int bulkCount = 256;
|
|
unsafe void HandleBulkBlockUpdate() {
|
|
int count = reader.ReadUInt8() + 1;
|
|
if( game.Map.IsNotLoaded ) {
|
|
Utils.LogDebug( "Server tried to update a block while still sending us the map!" );
|
|
reader.Remove( bulkCount * (sizeof(int) + 1) );
|
|
return;
|
|
}
|
|
|
|
int* indices = stackalloc int[bulkCount];
|
|
for( int i = 0; i < count; i++ )
|
|
indices[i] = ReadInt32( reader.buffer, i * 4 );
|
|
|
|
for( int i = 0; i < count; i++ ) {
|
|
byte block = reader.buffer[i + bulkCount * sizeof(int)];
|
|
Vector3I coords = game.Map.GetCoords( indices[i] );
|
|
|
|
if( coords.X < 0 ) {
|
|
Utils.LogDebug( "Server tried to update a block at an invalid position!" );
|
|
continue;
|
|
}
|
|
game.UpdateBlock( coords.X, coords.Y, coords.Z, block );
|
|
}
|
|
reader.Remove( bulkCount * (sizeof(int) + 1) );
|
|
}
|
|
|
|
static int ReadInt32( byte[] buffer, int offset ) {
|
|
return buffer[offset + 0] << 24 | buffer[offset + 1] << 16
|
|
| buffer[offset + 2] << 8 | buffer[offset + 3];
|
|
}
|
|
|
|
void HandleSetTextColor() {
|
|
FastColour col = new FastColour( reader.ReadUInt8(), reader.ReadUInt8(),
|
|
reader.ReadUInt8(), reader.ReadUInt8() );
|
|
byte code = reader.ReadUInt8();
|
|
|
|
if( code <= ' ' || code > '~' ) return; // Control chars, space, extended chars cannot be used
|
|
if( (code >= '0' && code <= '9') || (code >= 'a' && code <= 'f')
|
|
|| (code >= 'A' && code <= 'F') ) return; // Standard chars cannot be used.
|
|
game.Drawer2D.Colours[code] = col;
|
|
game.Events.RaiseColourCodesChanged();
|
|
}
|
|
|
|
static SoundType[] stepSnds, breakSnds;
|
|
static NetworkProcessor() {
|
|
stepSnds = new SoundType[10];
|
|
breakSnds = new SoundType[10];
|
|
stepSnds[0] = SoundType.None; breakSnds[0] = SoundType.None;
|
|
stepSnds[1] = SoundType.Wood; breakSnds[1] = SoundType.Wood;
|
|
stepSnds[2] = SoundType.Gravel; breakSnds[2] = SoundType.Gravel;
|
|
stepSnds[3] = SoundType.Grass; breakSnds[3] = SoundType.Grass;
|
|
stepSnds[4] = SoundType.Stone; breakSnds[4] = SoundType.Stone;
|
|
// TODO: metal sound type, just use stone for now.
|
|
stepSnds[5] = SoundType.Stone; breakSnds[5] = SoundType.Stone;
|
|
stepSnds[6] = SoundType.Stone; breakSnds[6] = SoundType.Glass;
|
|
stepSnds[7] = SoundType.Cloth; breakSnds[7] = SoundType.Cloth;
|
|
stepSnds[8] = SoundType.Sand; breakSnds[8] = SoundType.Sand;
|
|
stepSnds[9] = SoundType.Snow; breakSnds[9] = SoundType.Snow;
|
|
}
|
|
}
|
|
#endregion
|
|
} |