347311db8c
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@1298 fc73d0e0-1445-4013-8a0c-d673dee63da5
1333 lines
28 KiB
C
1333 lines
28 KiB
C
#include "quakedef.h"
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//this file contains q3 netcode related things.
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//field info, netchan, and the WriteBits stuff (which should probably be moved to common.c with the others)
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#include "clq3defs.h" //okay, urr, this is bad for dedicated servers. urhum. Maybe they're not looking? It's only typedefs and one extern.
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/*
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============
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MSG_WriteRawBytes
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============
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*/
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static void MSG_WriteRawBytes( sizebuf_t *msg, int value, int bits )
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{
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qbyte *buf;
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if( bits <= 8 )
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{
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buf = SZ_GetSpace( msg, 1 );
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buf[0] = value;
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}
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else if( bits <= 16 )
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{
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buf = SZ_GetSpace( msg, 2 );
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buf[0] = value & 0xFF;
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buf[1] = value >> 8;
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}
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else if( bits <= 32 )
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{
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buf = SZ_GetSpace( msg, 4 );
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buf[0] = value & 0xFF;
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buf[1] = (value >> 8) & 0xFF;
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buf[2] = (value >> 16) & 0xFF;
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buf[3] = value >> 24;
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}
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}
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/*
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============
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MSG_WriteRawBits
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============
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*/
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static void MSG_WriteRawBits( sizebuf_t *msg, int value, int bits )
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{
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// TODO
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}
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/*
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============
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MSG_WriteHuffBits
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============
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*/
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static void MSG_WriteHuffBits( sizebuf_t *msg, int value, int bits )
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{
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int startbits;
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int remaining;
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int i;
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value &= 0xFFFFFFFFU >> (32 - bits);
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remaining = bits & 7;
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startbits = msg->currentbit;
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for( i=0; i<remaining ; i++ )
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{
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if( !(msg->currentbit & 7) )
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{
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msg->data[msg->currentbit >> 3] = 0;
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}
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msg->data[msg->currentbit >> 3] |= (value & 1) << (msg->currentbit & 7);
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msg->currentbit++;
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value >>= 1;
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}
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bits -= remaining;
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if( bits > 0 )
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{
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for( i=0 ; i<(bits+7)>>3 ; i++ )
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{
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Huff_EmitByte( value & 255, msg->data, &msg->currentbit );
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value >>= 8;
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}
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}
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msg->cursize = (msg->currentbit >> 3) + 1;
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#ifdef MSG_PROFILING
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msg_bitsEmitted += msg->currentbit - startbits;
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#endif // MSG_PROFILING
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}
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/*
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============
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MSG_WriteBits
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============
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*/
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void MSG_WriteBits(sizebuf_t *msg, int value, int bits)
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{
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#ifdef MSG_PROFILING
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int maxval;
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#endif // MSG_PROFILING
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if( msg->maxsize - msg->cursize < 4 )
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{
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msg->overflowed = true;
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return;
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}
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if( !bits || bits < -31 || bits > 32 )
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{
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Sys_Error("MSG_WriteBits: bad bits %i", bits);
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}
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#ifdef MSG_PROFILING
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msg_bitsWritten += bits;
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if( bits != 32 )
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{
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if( bits > 0 )
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{
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maxval = (1 << bits) - 1;
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if( value > maxval || maxval < 0 )
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{
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msg_overflows++;
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}
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}
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else
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{
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maxval = (1 << (bits - 1)) - 1;
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if( value > maxval || value < -maxval - 1 )
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{
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msg_overflows++;
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}
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}
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}
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#endif // MSG_PROFILING
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if( bits < 0 )
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{
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bits = -bits;
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}
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switch( msg->packing )
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{
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default:
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case SZ_BAD:
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Sys_Error("MSG_WriteBits: bad msg->packing %i", msg->packing );
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break;
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case SZ_RAWBYTES:
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MSG_WriteRawBytes( msg, value, bits );
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break;
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case SZ_RAWBITS:
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MSG_WriteRawBits( msg, value, bits );
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break;
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case SZ_HUFFMAN:
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MSG_WriteHuffBits( msg, value, bits );
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break;
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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//q3 netchan
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//note that the sv and cl both have thier own wrappers, to handle encryption.
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#define MAX_PACKETLEN 1400
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#define FRAGMENT_MASK 0x80000000
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#define FRAGMENTATION_TRESHOLD (MAX_PACKETLEN-100)
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qboolean Netchan_ProcessQ3 (netchan_t *chan)
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{
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//incoming_reliable_sequence is perhaps wrongly used...
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int sequence;
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qboolean fragment;
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int fragmentStart;
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int fragmentLength;
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// Get sequence number
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MSG_BeginReading();
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sequence = MSG_ReadBits(32);
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// Read the qport if we are a server
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if (chan->sock == NS_SERVER)
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{
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MSG_ReadBits(16);
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}
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// Check if packet is a message fragment
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if (sequence & FRAGMENT_MASK)
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{
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sequence &= ~FRAGMENT_MASK;
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fragment = true;
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fragmentStart = MSG_ReadBits(16);
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fragmentLength = MSG_ReadBits(16);
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}
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else
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{
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fragment = false;
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fragmentStart = 0;
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fragmentLength = 0;
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}
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/* if (net_showpackets->integer)
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{
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if (fragment)
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{
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Con_Printf("%s recv %4i : s=%i fragment=%i,%i\n", (chan->sock == NS_CLIENT) ? "client" : "server", net_message.cursize, sequence, fragmentStart, fragmentLength);
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}
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else
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{
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Con_Printf("%s recv %4i : s=%i\n", (chan->sock == NS_CLIENT) ? "client" : "server", net_message.cursize, sequence);
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}
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}*/
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// Discard stale or duplicated packets
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if (sequence <= chan->incoming_sequence)
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{
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/* if (net_showdrop->integer || net_showpackets->integer)
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{
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Con_Printf("%s:Out of order packet %i at %i\n", NET_AdrToString(chan->remote_address), chan->incoming_sequence);
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}*/
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return false;
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}
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// Dropped packets don't keep the message from being used
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chan->drop_count = sequence - (chan->incoming_sequence + 1);
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if (chan->drop_count > 0)// && (net_showdrop->integer || net_showpackets->integer))
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{
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Con_DPrintf("%s:Dropped %i packets at %i\n", NET_AdrToString(chan->remote_address), chan->drop_count, sequence);
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}
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if (!fragment)
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{ // not fragmented
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chan->incoming_sequence = sequence;
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chan->last_received = realtime;
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return true;
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}
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// Check for new fragmented message
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if (chan->incoming_reliable_sequence != sequence)
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{
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chan->incoming_reliable_sequence = sequence;
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chan->in_fragment_length = 0;
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}
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// Check fragments sequence
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if (chan->in_fragment_length != fragmentStart)
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{
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// if(net_showdrop->integer || net_showpackets->integer)
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{
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Con_Printf("%s:Dropped a message fragment\n", NET_AdrToString(chan->remote_address));
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}
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return false;
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}
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// Check if fragmentLength is valid
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if (fragmentLength < 0 || fragmentLength > FRAGMENTATION_TRESHOLD || msg_readcount + fragmentLength > net_message.cursize || chan->in_fragment_length + fragmentLength > sizeof(chan->in_fragment_buf))
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{
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/* if (net_showdrop->integer || net_showpackets->integer)
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{
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Con_Printf("%s:illegal fragment length\n", NET_AdrToString(chan->remote_address));
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}
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*/ return false;
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}
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// Append to the incoming fragment buffer
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memcpy( chan->in_fragment_buf + chan->in_fragment_length, net_message.data + msg_readcount, fragmentLength);
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chan->in_fragment_length += fragmentLength;
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if (fragmentLength == FRAGMENTATION_TRESHOLD)
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{
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return false; // there are more fragments of this message
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}
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// Check if assembled message fits in buffer
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if (chan->in_fragment_length > net_message.maxsize)
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{
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Con_Printf("%s:fragmentLength %i > net_message.maxsize\n", NET_AdrToString(chan->remote_address), chan->in_fragment_length);
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return false;
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}
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//
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// Reconstruct message properly
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//
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SZ_Clear(&net_message);
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MSG_WriteLong(&net_message, sequence);
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SZ_Write(&net_message, chan->in_fragment_buf, chan->in_fragment_length);
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MSG_BeginReading();
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MSG_ReadLong();
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// No more fragments
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chan->in_fragment_length = 0;
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chan->incoming_reliable_sequence = 0;
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chan->incoming_sequence = sequence;
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chan->last_received = realtime;
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return true;
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}
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/*
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=================
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Netchan_TransmitNextFragment
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=================
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*/
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void Netchan_TransmitNextFragment( netchan_t *chan )
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{
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//'reliable' is badly named. it should be 'fragment' instead.
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//but in the interests of a smaller netchan_t...
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int i;
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sizebuf_t send;
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qbyte send_buf[MAX_PACKETLEN];
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int fragmentLength;
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// Write the packet header
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memset(&send, 0, sizeof(send));
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send.packing = SZ_RAWBYTES;
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send.maxsize = sizeof(send_buf);
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send.data = send_buf;
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MSG_WriteLong( &send, chan->outgoing_sequence | FRAGMENT_MASK );
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#ifndef SERVERONLY
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// Send the qport if we are a client
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if( chan->sock == NS_CLIENT )
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{
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MSG_WriteShort( &send, cls.qport);
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}
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#endif
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fragmentLength = chan->reliable_length - chan->reliable_start;
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if( fragmentLength > FRAGMENTATION_TRESHOLD ) {
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// remaining fragment is still too large
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fragmentLength = FRAGMENTATION_TRESHOLD;
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}
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// Write the fragment header
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MSG_WriteShort( &send, chan->reliable_start );
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MSG_WriteShort( &send, fragmentLength );
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// Copy message fragment to the packet
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SZ_Write( &send, chan->reliable_buf + chan->reliable_start, fragmentLength );
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// Send the datagram
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NET_SendPacket( chan->sock, send.cursize, send.data, chan->remote_address );
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// if( net_showpackets->integer )
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{
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Con_Printf( "%s send %4i : s=%i fragment=%i,%i\n", (chan->sock == NS_CLIENT) ? "client" : "server", send.cursize, chan->outgoing_sequence, chan->reliable_start, fragmentLength );
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}
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// Even if we have sent the whole message,
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// but if fragmentLength == FRAGMENTATION_TRESHOLD we have to write empty
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// fragment later, because Netchan_Process expects it...
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chan->reliable_start += fragmentLength;
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if( chan->reliable_start == chan->reliable_length && fragmentLength != FRAGMENTATION_TRESHOLD )
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{
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// we have sent the whole message!
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chan->outgoing_sequence++;
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chan->reliable_length = 0;
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chan->reliable_start = 0;
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i = chan->outgoing_sequence & (MAX_LATENT-1);
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chan->outgoing_size[i] = send.cursize;
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chan->outgoing_time[i] = realtime;
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}
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}
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/*
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=================
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Netchan_Transmit
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=================
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*/
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void Netchan_TransmitQ3( netchan_t *chan, int length, const qbyte *data )
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{
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int i;
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sizebuf_t send;
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qbyte send_buf[MAX_OVERALLMSGLEN+6];
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// Check for message overflow
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if( length > MAX_OVERALLMSGLEN )
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{
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Con_Printf( "%s: outgoing message overflow\n", NET_AdrToString( chan->remote_address ) );
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return;
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}
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if( length < 0 )
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{
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Sys_Error("Netchan_Transmit: length = %i", length);
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}
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// Don't send if there are still unsent fragments
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if( chan->reliable_length )
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{
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Netchan_TransmitNextFragment( chan );
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if( chan->reliable_length )
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{
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Con_Printf( "%s: unsent fragments\n", NET_AdrToString( chan->remote_address ) );
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return;
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}
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}
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// See if this message is too large and should be fragmented
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if( length >= FRAGMENTATION_TRESHOLD )
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{
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chan->reliable_length = length;
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chan->reliable_start = 0;
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memcpy( chan->reliable_buf, data, length );
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Netchan_TransmitNextFragment( chan );
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return;
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}
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// Write the packet header
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memset(&send, 0, sizeof(send));
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send.packing = SZ_RAWBYTES;
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send.maxsize = sizeof(send_buf);
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send.data = send_buf;
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MSG_WriteLong( &send, chan->outgoing_sequence );
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#ifndef SERVERONLY
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// Send the qport if we are a client
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if( chan->sock == NS_CLIENT )
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{
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MSG_WriteShort( &send, cls.qport);
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}
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#endif
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// Copy the message to the packet
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SZ_Write( &send, data, length );
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// Send the datagram
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NET_SendPacket( chan->sock, send.cursize, send.data, chan->remote_address );
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/* if( net_showpackets->integer )
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{
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Con_Printf( "%s send %4i : s=%i ack=%i\n", (chan->sock == NS_SERVER) ? "server" : "client", send.cursize , chan->outgoing_sequence, chan->incoming_sequence );
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}
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*/
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chan->outgoing_sequence++;
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i = chan->outgoing_sequence & (MAX_LATENT-1);
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chan->outgoing_size[i] = send.cursize;
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chan->outgoing_time[i] = realtime;
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}
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//////////////
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int StringKey( const char *string, int length )
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{
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int i;
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int key = 0;
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for( i=0 ; i<length && string[i] ; i++ )
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{
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key += string[i] * (119 + i);
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}
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return (key ^ (key >> 10) ^ (key >> 20));
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}
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typedef struct {
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#ifdef MSG_SHOWNET
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const char *name;
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#endif // MSG_SHOWNET
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int offset;
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int bits; // bits > 0 --> unsigned integer
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// bits = 0 --> float value
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// bits < 0 --> signed integer
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} field_t;
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// field declarations
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#ifdef MSG_SHOWNET
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# define PS_FIELD(n,b) { #n, ((int)&(((q3playerState_t *)0)->n)), b }
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# define ES_FIELD(n,b) { #n, ((int)&(((q3entityState_t *)0)->n)), b }
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#else
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# define PS_FIELD(n,b) { ((int)&(((q3playerState_t *)0)->n)), b }
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# define ES_FIELD(n,b) { ((int)&(((q3entityState_t *)0)->n)), b }
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#endif
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// field data accessing
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#define FIELD_INTEGER(s) (*(int *)((qbyte *)(s)+field->offset))
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#define FIELD_FLOAT(s) (*(float *)((qbyte *)(s)+field->offset))
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#define SNAPPED_BITS 13
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#define MAX_SNAPPED (1<<SNAPPED_BITS)
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//
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// entityState_t
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//
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static const field_t esFieldTable[] = {
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ES_FIELD( pos.trTime, 32 ),
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ES_FIELD( pos.trBase[0], 0 ),
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ES_FIELD( pos.trBase[1], 0 ),
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ES_FIELD( pos.trDelta[0], 0 ),
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ES_FIELD( pos.trDelta[1], 0 ),
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ES_FIELD( pos.trBase[2], 0 ),
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ES_FIELD( apos.trBase[1], 0 ),
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ES_FIELD( pos.trDelta[2], 0 ),
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ES_FIELD( apos.trBase[0], 0 ),
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ES_FIELD( event, 10 ),
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ES_FIELD( angles2[1], 0 ),
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ES_FIELD( eType, 8 ),
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ES_FIELD( torsoAnim, 8 ),
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ES_FIELD( eventParm, 8 ),
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ES_FIELD( legsAnim, 8 ),
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ES_FIELD( groundEntityNum, 10 ),
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ES_FIELD( pos.trType, 8 ),
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ES_FIELD( eFlags, 19 ),
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ES_FIELD( otherEntityNum, 10 ),
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ES_FIELD( weapon, 8 ),
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ES_FIELD( clientNum, 8 ),
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ES_FIELD( angles[1], 0 ),
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ES_FIELD( pos.trDuration, 32 ),
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ES_FIELD( apos.trType, 8 ),
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ES_FIELD( origin[0], 0 ),
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ES_FIELD( origin[1], 0 ),
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ES_FIELD( origin[2], 0 ),
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ES_FIELD( solid, 24 ),
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ES_FIELD( powerups, 16 ),
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ES_FIELD( modelindex, 8 ),
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ES_FIELD( otherEntityNum2, 10 ),
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ES_FIELD( loopSound, 8 ),
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ES_FIELD( generic1, 8 ),
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ES_FIELD( origin2[2], 0 ),
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ES_FIELD( origin2[0], 0 ),
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ES_FIELD( origin2[1], 0 ),
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ES_FIELD( modelindex2, 8 ),
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ES_FIELD( angles[0], 0 ),
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ES_FIELD( time, 32 ),
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ES_FIELD( apos.trTime, 32 ),
|
|
ES_FIELD( apos.trDuration, 32 ),
|
|
ES_FIELD( apos.trBase[2], 0 ),
|
|
ES_FIELD( apos.trDelta[0], 0 ),
|
|
ES_FIELD( apos.trDelta[1], 0 ),
|
|
ES_FIELD( apos.trDelta[2], 0 ),
|
|
ES_FIELD( time2, 32 ),
|
|
ES_FIELD( angles[2], 0 ),
|
|
ES_FIELD( angles2[0], 0 ),
|
|
ES_FIELD( angles2[2], 0 ),
|
|
ES_FIELD( constantLight, 32 ),
|
|
ES_FIELD( frame, 16 )
|
|
};
|
|
|
|
static const int esTableSize = sizeof( esFieldTable ) / sizeof( esFieldTable[0] );
|
|
|
|
q3entityState_t nullEntityState;
|
|
|
|
/*
|
|
============
|
|
MSG_ReadDeltaEntity
|
|
|
|
'from' == NULL --> nodelta update
|
|
'to' == NULL --> do nothing
|
|
|
|
returns false if the ent was removed.
|
|
============
|
|
*/
|
|
#ifndef SERVERONLY
|
|
qboolean MSG_Q3_ReadDeltaEntity( const q3entityState_t *from, q3entityState_t *to, int number )
|
|
{
|
|
const field_t *field;
|
|
int to_integer;
|
|
int maxFieldNum;
|
|
#ifdef MSG_SHOWNET
|
|
int startbits;
|
|
qboolean dump;
|
|
#endif
|
|
int i;
|
|
|
|
|
|
if( number < 0 || number >= MAX_GENTITIES )
|
|
{
|
|
Host_EndGame("MSG_ReadDeltaEntity: Bad delta entity number: %i\n", number);
|
|
}
|
|
|
|
if( !to )
|
|
{
|
|
return true;
|
|
}
|
|
|
|
#ifdef MSG_SHOWNET
|
|
dump = (qboolean)(cl_shownet->integer >= 2);
|
|
|
|
if( dump )
|
|
{
|
|
startbits = msg->bit;
|
|
}
|
|
#endif
|
|
|
|
if (MSG_ReadBits(1))
|
|
{
|
|
memset( to, 0, sizeof( *to ) );
|
|
to->number = ENTITYNUM_NONE;
|
|
|
|
#ifdef MSG_SHOWNET
|
|
if( dump )
|
|
{
|
|
Con_Printf( "%3i: #%-3i remove\n", msg->readcount, number );
|
|
}
|
|
#endif
|
|
return false; // removed
|
|
}
|
|
|
|
if( !from )
|
|
{
|
|
memset( to, 0, sizeof( *to ) );
|
|
}
|
|
else
|
|
{
|
|
memcpy( to, from, sizeof( *to ) );
|
|
}
|
|
to->number = number;
|
|
|
|
if( !MSG_ReadBits( 1 ) )
|
|
{
|
|
return true; // unchanged
|
|
}
|
|
|
|
#ifdef MSG_SHOWNET
|
|
if( dump )
|
|
{
|
|
Con_Printf( "%3i: #%-3i ", msg->readcount, to->number );
|
|
}
|
|
#endif
|
|
|
|
maxFieldNum = MSG_ReadByte();
|
|
|
|
#ifdef MSG_SHOWNET
|
|
if( dump )
|
|
{
|
|
Con_Printf( "<%i> ", maxFieldNum );
|
|
}
|
|
#endif
|
|
|
|
if( maxFieldNum > esTableSize )
|
|
{
|
|
Host_EndGame("MSG_ReadDeltaEntity: maxFieldNum > esTableSize");
|
|
}
|
|
|
|
for( i=0, field=esFieldTable ; i<maxFieldNum ; i++, field++ )
|
|
{
|
|
if( !MSG_ReadBits( 1 ) )
|
|
continue; // field unchanged
|
|
|
|
if( !MSG_ReadBits( 1 ) )
|
|
{
|
|
FIELD_INTEGER( to ) = 0;
|
|
#ifdef MSG_SHOWNET
|
|
if( dump )
|
|
{
|
|
Con_Printf( "%s:%i ", field->name, 0 );
|
|
}
|
|
#endif
|
|
continue; // field set to zero
|
|
}
|
|
|
|
if( field->bits )
|
|
{
|
|
to_integer = MSG_ReadBits( field->bits );
|
|
FIELD_INTEGER( to ) = to_integer;
|
|
#ifdef MSG_SHOWNET
|
|
if( dump )
|
|
{
|
|
Con_Printf( "%s:%i ", field->name, to_integer );
|
|
}
|
|
#endif
|
|
continue; // integer value
|
|
}
|
|
|
|
|
|
if( !MSG_ReadBits( 1 ) )
|
|
{
|
|
to_integer = MSG_ReadBits( 13 ) - 0x1000;
|
|
FIELD_FLOAT( to ) = (float)to_integer;
|
|
#ifdef MSG_SHOWNET
|
|
if( dump )
|
|
{
|
|
Con_Printf( "%s:%i ", field->name, to_integer );
|
|
}
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
FIELD_INTEGER( to ) = MSG_ReadLong();
|
|
#ifdef MSG_SHOWNET
|
|
if( dump )
|
|
{
|
|
Con_Printf( "%s:%f ", field->name, FIELD_FLOAT( to ) );
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
#ifdef MSG_SHOWNET
|
|
if( dump )
|
|
{
|
|
Con_Printf( " (%i bits)\n", msg->bit - startbits );
|
|
}
|
|
#endif
|
|
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
============
|
|
MSG_WriteDeltaEntity
|
|
|
|
If 'force' parm is false, this won't result any bits
|
|
emitted if entity didn't changed at all
|
|
|
|
'from' == NULL --> nodelta update
|
|
'to' == NULL --> entity removed
|
|
============
|
|
*/
|
|
#ifndef CLIENTONLY
|
|
void MSGQ3_WriteDeltaEntity(sizebuf_t *msg, const q3entityState_t *from, const q3entityState_t *to, qboolean force)
|
|
{
|
|
const field_t *field;
|
|
int to_value;
|
|
int to_integer;
|
|
float to_float;
|
|
int maxFieldNum;
|
|
int i;
|
|
|
|
if(!to)
|
|
{
|
|
if(from)
|
|
{
|
|
MSG_WriteBits(msg, from->number, GENTITYNUM_BITS);
|
|
MSG_WriteBits(msg, 1, 1);
|
|
}
|
|
return; // removed
|
|
}
|
|
|
|
if(to->number < 0 || to->number > MAX_GENTITIES)
|
|
SV_Error("MSG_WriteDeltaEntity: Bad entity number: %i", to->number);
|
|
|
|
if(!from)
|
|
from = &nullEntityState; // nodelta update
|
|
|
|
//
|
|
// find last modified field in table
|
|
//
|
|
maxFieldNum = 0;
|
|
for(i=0, field=esFieldTable; i<esTableSize; i++, field++ )
|
|
{
|
|
if( FIELD_INTEGER( from ) != FIELD_INTEGER(to))
|
|
maxFieldNum = i + 1;
|
|
}
|
|
|
|
if(!maxFieldNum)
|
|
{
|
|
if(!force)
|
|
return; // don't emit any bits at all
|
|
|
|
MSG_WriteBits(msg, to->number, GENTITYNUM_BITS);
|
|
MSG_WriteBits(msg, 0, 1);
|
|
MSG_WriteBits(msg, 0, 1);
|
|
return; // unchanged
|
|
}
|
|
|
|
MSG_WriteBits(msg, to->number, GENTITYNUM_BITS);
|
|
MSG_WriteBits(msg, 0, 1);
|
|
MSG_WriteBits(msg, 1, 1);
|
|
MSG_WriteBits(msg, maxFieldNum, 8);
|
|
|
|
//
|
|
// write all modified fields
|
|
//
|
|
for(i=0, field=esFieldTable; i<maxFieldNum ; i++, field++)
|
|
{
|
|
to_value = FIELD_INTEGER(to);
|
|
|
|
if(FIELD_INTEGER(from) == to_value)
|
|
{
|
|
MSG_WriteBits( msg, 0, 1 );
|
|
continue; // field unchanged
|
|
}
|
|
MSG_WriteBits(msg, 1, 1);
|
|
|
|
if(!to_value)
|
|
{
|
|
MSG_WriteBits(msg, 0, 1);
|
|
continue; // field set to zero
|
|
}
|
|
MSG_WriteBits(msg, 1, 1);
|
|
|
|
if(field->bits)
|
|
{
|
|
MSG_WriteBits(msg, to_value, field->bits);
|
|
continue; // integer value
|
|
}
|
|
|
|
//
|
|
// figure out how to pack float value
|
|
//
|
|
to_float = FIELD_FLOAT(to);
|
|
to_integer = (int)to_float;
|
|
|
|
#ifdef MSG_PROFILING
|
|
msg_vectorsEmitted++;
|
|
#endif // MSG_PROFILING
|
|
|
|
if((float)to_integer == to_float
|
|
&& to_integer + MAX_SNAPPED/2 >= 0
|
|
&& to_integer + MAX_SNAPPED/2 < MAX_SNAPPED)
|
|
{
|
|
MSG_WriteBits(msg, 0, 1 ); // pack in 13 bits
|
|
MSG_WriteBits(msg, to_integer + MAX_SNAPPED/2, SNAPPED_BITS);
|
|
|
|
#ifdef MSG_PROFILING
|
|
msg_vectorsCompressed++;
|
|
#endif // MSG_PROFILING
|
|
|
|
} else {
|
|
MSG_WriteBits(msg, 1, 1 ); // pack in 32 bits
|
|
MSG_WriteBits(msg, to_value, 32);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
/////////////////////////////////////////////////////
|
|
//player state
|
|
|
|
|
|
//
|
|
// playerState_t
|
|
//
|
|
static const field_t psFieldTable[] = {
|
|
PS_FIELD( commandTime, 32 ),
|
|
PS_FIELD( origin[0], 0 ),
|
|
PS_FIELD( origin[1], 0 ),
|
|
PS_FIELD( bobCycle, 8 ),
|
|
PS_FIELD( velocity[0], 0 ),
|
|
PS_FIELD( velocity[1], 0 ),
|
|
PS_FIELD( viewangles[1], 0 ),
|
|
PS_FIELD( viewangles[0], 0 ),
|
|
PS_FIELD( weaponTime, -16 ),
|
|
PS_FIELD( origin[2], 0 ),
|
|
PS_FIELD( velocity[2], 0 ),
|
|
PS_FIELD( legsTimer, 8 ),
|
|
PS_FIELD( pm_time, -16 ),
|
|
PS_FIELD( eventSequence, 16 ),
|
|
PS_FIELD( torsoAnim, 8 ),
|
|
PS_FIELD( movementDir, 4 ),
|
|
PS_FIELD( events[0], 8 ),
|
|
PS_FIELD( legsAnim, 8 ),
|
|
PS_FIELD( events[1], 8 ),
|
|
PS_FIELD( pm_flags, 16 ),
|
|
PS_FIELD( groundEntityNum, 10 ),
|
|
PS_FIELD( weaponstate, 4 ),
|
|
PS_FIELD( eFlags, 16 ),
|
|
PS_FIELD( externalEvent, 10 ),
|
|
PS_FIELD( gravity, 16 ),
|
|
PS_FIELD( speed, 16 ),
|
|
PS_FIELD( delta_angles[1], 16 ),
|
|
PS_FIELD( externalEventParm, 8 ),
|
|
PS_FIELD( viewheight, -8 ),
|
|
PS_FIELD( damageEvent, 8 ),
|
|
PS_FIELD( damageYaw, 8 ),
|
|
PS_FIELD( damagePitch, 8 ),
|
|
PS_FIELD( damageCount, 8 ),
|
|
PS_FIELD( generic1, 8 ),
|
|
PS_FIELD( pm_type, 8 ),
|
|
PS_FIELD( delta_angles[0], 16 ),
|
|
PS_FIELD( delta_angles[2], 16 ),
|
|
PS_FIELD( torsoTimer, 12 ),
|
|
PS_FIELD( eventParms[0], 8 ),
|
|
PS_FIELD( eventParms[1], 8 ),
|
|
PS_FIELD( clientNum, 8 ),
|
|
PS_FIELD( weapon, 5 ),
|
|
PS_FIELD( viewangles[2], 0 ),
|
|
PS_FIELD( grapplePoint[0], 0 ),
|
|
PS_FIELD( grapplePoint[1], 0 ),
|
|
PS_FIELD( grapplePoint[2], 0 ),
|
|
PS_FIELD( jumppad_ent, 10 ),
|
|
PS_FIELD( loopSound, 16 )
|
|
};
|
|
static const int psTableSize = sizeof( psFieldTable ) / sizeof( psFieldTable[0] );
|
|
q3playerState_t nullPlayerState;
|
|
|
|
/*
|
|
============
|
|
MSG_WriteDeltaPlayerstate
|
|
|
|
'from' == NULL --> nodelta update
|
|
'to' == NULL --> do nothing
|
|
============
|
|
*/
|
|
#ifndef CLIENTONLY
|
|
void MSGQ3_WriteDeltaPlayerstate(sizebuf_t *msg, const q3playerState_t *from, const q3playerState_t *to)
|
|
{
|
|
const field_t *field;
|
|
int to_value;
|
|
float to_float;
|
|
int to_integer;
|
|
int maxFieldNum;
|
|
int statsMask;
|
|
int persistantMask;
|
|
int ammoMask;
|
|
int powerupsMask;
|
|
int i;
|
|
|
|
if(!to)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if(!from)
|
|
{
|
|
from = &nullPlayerState; // nodelta update
|
|
}
|
|
|
|
//
|
|
// find last modified field in table
|
|
//
|
|
maxFieldNum = 0;
|
|
for(i=0, field=psFieldTable ; i<psTableSize ; i++, field++)
|
|
{
|
|
if(FIELD_INTEGER(from) != FIELD_INTEGER(to))
|
|
{
|
|
maxFieldNum = i + 1;
|
|
}
|
|
}
|
|
|
|
MSG_WriteBits(msg, maxFieldNum, 8);
|
|
|
|
//
|
|
// write all modified fields
|
|
//
|
|
for( i=0, field=psFieldTable ; i<maxFieldNum ; i++, field++ )
|
|
{
|
|
to_value = FIELD_INTEGER( to );
|
|
|
|
if( FIELD_INTEGER( from ) == to_value )
|
|
{
|
|
MSG_WriteBits( msg, 0, 1 );
|
|
continue; // field unchanged
|
|
}
|
|
MSG_WriteBits( msg, 1, 1 );
|
|
|
|
if( field->bits )
|
|
{
|
|
MSG_WriteBits( msg, to_value, field->bits );
|
|
continue; // integer value
|
|
}
|
|
|
|
//
|
|
// figure out how to pack float value
|
|
//
|
|
to_float = FIELD_FLOAT( to );
|
|
to_integer = (int)to_float;
|
|
|
|
#ifdef MSG_PROFILING
|
|
msg_vectorsEmitted++;
|
|
#endif // MSG_PROFILING
|
|
|
|
if( (float)to_integer == to_float
|
|
&& to_integer + MAX_SNAPPED/2 >= 0
|
|
&& to_integer + MAX_SNAPPED/2 < MAX_SNAPPED )
|
|
{
|
|
MSG_WriteBits( msg, 0, 1 ); // pack in 13 bits
|
|
MSG_WriteBits( msg, to_integer + MAX_SNAPPED/2, SNAPPED_BITS );
|
|
|
|
#ifdef MSG_PROFILING
|
|
msg_vectorsCompressed++;
|
|
#endif // MSG_PROFILING
|
|
|
|
} else {
|
|
MSG_WriteBits(msg, 1, 1); // pack in 32 bits
|
|
MSG_WriteBits(msg, to_value, 32);
|
|
}
|
|
}
|
|
|
|
//
|
|
// find modified arrays
|
|
//
|
|
statsMask = 0;
|
|
for(i=0; i<MAX_Q3_STATS; i++)
|
|
{
|
|
if(from->stats[i] != to->stats[i])
|
|
statsMask |= (1 << i);
|
|
}
|
|
|
|
persistantMask = 0;
|
|
for(i=0 ; i<MAX_Q3_PERSISTANT ; i++)
|
|
{
|
|
if(from->persistant[i] != to->persistant[i])
|
|
persistantMask |= (1 << i);
|
|
}
|
|
|
|
ammoMask = 0;
|
|
for(i=0 ; i<MAX_Q3_WEAPONS ; i++ )
|
|
{
|
|
if(from->ammo[i] != to->ammo[i])
|
|
ammoMask |= (1 << i);
|
|
}
|
|
|
|
powerupsMask = 0;
|
|
for( i=0 ; i<MAX_Q3_POWERUPS ; i++ )
|
|
{
|
|
if(from->powerups[i] != to->powerups[i])
|
|
powerupsMask |= (1 << i);
|
|
}
|
|
|
|
if(!statsMask && !persistantMask && !ammoMask && !powerupsMask)
|
|
{
|
|
MSG_WriteBits(msg, 0, 1);
|
|
return; // no arrays modified
|
|
}
|
|
|
|
//
|
|
// write all modified arrays
|
|
//
|
|
MSG_WriteBits(msg, 1, 1);
|
|
|
|
// PS_STATS
|
|
if(statsMask)
|
|
{
|
|
MSG_WriteBits(msg, 1, 1);
|
|
MSG_WriteBits(msg, statsMask, 16);
|
|
for(i=0; i<MAX_Q3_STATS; i++)
|
|
if(statsMask & (1 << i))
|
|
MSG_WriteBits(msg, to->stats[i], -16);
|
|
}
|
|
else
|
|
MSG_WriteBits(msg, 0, 1); // unchanged
|
|
|
|
// PS_PERSISTANT
|
|
if(persistantMask)
|
|
{
|
|
MSG_WriteBits(msg, 1, 1);
|
|
MSG_WriteBits(msg, persistantMask, 16);
|
|
for(i=0; i<MAX_Q3_PERSISTANT; i++)
|
|
if(persistantMask & (1 << i))
|
|
MSG_WriteBits(msg, to->persistant[i], -16);
|
|
}
|
|
else
|
|
MSG_WriteBits(msg, 0, 1); // unchanged
|
|
|
|
|
|
// PS_AMMO
|
|
if( ammoMask )
|
|
{
|
|
MSG_WriteBits(msg, 1, 1);
|
|
MSG_WriteBits(msg, ammoMask, 16);
|
|
for(i=0; i<MAX_Q3_WEAPONS; i++)
|
|
if(ammoMask & (1 << i))
|
|
MSG_WriteBits(msg, to->ammo[i], 16);
|
|
}
|
|
else
|
|
MSG_WriteBits(msg, 0, 1); // unchanged
|
|
|
|
// PS_POWERUPS
|
|
if(powerupsMask)
|
|
{
|
|
MSG_WriteBits(msg, 1, 1);
|
|
MSG_WriteBits(msg, powerupsMask, 16);
|
|
for(i=0; i<MAX_Q3_POWERUPS; i++)
|
|
{
|
|
if(powerupsMask & (1 << i))
|
|
MSG_WriteBits(msg, to->powerups[i], 32); // WARNING: powerups use 32 bits, not 16
|
|
}
|
|
}
|
|
else
|
|
MSG_WriteBits( msg, 0, 1 ); // unchanged
|
|
}
|
|
#endif
|
|
|
|
#ifndef SERVERONLY
|
|
void MSG_Q3_ReadDeltaPlayerstate( const q3playerState_t *from, q3playerState_t *to ) {
|
|
const field_t *field;
|
|
int to_integer;
|
|
int maxFieldNum;
|
|
int bitmask;
|
|
#ifdef MSG_SHOWNET
|
|
int startbits;
|
|
qboolean dump;
|
|
qboolean moredump;
|
|
#endif
|
|
int i;
|
|
|
|
if( !to )
|
|
{
|
|
return;
|
|
}
|
|
|
|
#ifdef MSG_SHOWNET
|
|
dump = (qboolean)(cl_shownet->integer >= 2);
|
|
moredump = (qboolean)(cl_shownet->integer >= 4);
|
|
|
|
if( dump )
|
|
{
|
|
startbits = msg->bit;
|
|
|
|
Com_Printf( "%3i: playerstate ", msg->readcount );
|
|
}
|
|
#endif
|
|
|
|
if( !from )
|
|
{
|
|
memset( to, 0, sizeof( *to ) );
|
|
}
|
|
else
|
|
{
|
|
memcpy( to, from, sizeof( *to ) );
|
|
}
|
|
|
|
maxFieldNum = MSG_ReadByte();
|
|
|
|
if( maxFieldNum > psTableSize )
|
|
{
|
|
Host_EndGame( "MSG_ReadDeltaPlayerstate: maxFieldNum > psTableSize" );
|
|
}
|
|
|
|
for( i=0, field=psFieldTable ; i<maxFieldNum ; i++, field++ )
|
|
{
|
|
if(!MSG_ReadBits(1))
|
|
{
|
|
continue; // field unchanged
|
|
}
|
|
|
|
if( field->bits )
|
|
{
|
|
to_integer = MSG_ReadBits(field->bits);
|
|
FIELD_INTEGER( to ) = to_integer;
|
|
#ifdef MSG_SHOWNET
|
|
if( dump )
|
|
{
|
|
Com_Printf( "%s:%i ", field->name, to_integer );
|
|
}
|
|
#endif
|
|
continue; // integer value
|
|
}
|
|
|
|
|
|
if(!MSG_ReadBits(1))
|
|
{
|
|
to_integer = MSG_ReadBits(13) - 0x1000;
|
|
FIELD_FLOAT( to ) = (float)to_integer;
|
|
#ifdef MSG_SHOWNET
|
|
if( dump )
|
|
{
|
|
Com_Printf( "%s:%i ", field->name, to_integer );
|
|
}
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
FIELD_INTEGER( to ) = MSG_ReadLong();
|
|
#ifdef MSG_SHOWNET
|
|
if( dump )
|
|
{
|
|
Com_Printf( "%s:%f ", field->name, FIELD_FLOAT( to ) );
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
if( MSG_ReadBits(1) )
|
|
{
|
|
// PS_STATS
|
|
if( MSG_ReadBits(1) )
|
|
{
|
|
#ifdef MSG_SHOWNET
|
|
if( moredump )
|
|
{
|
|
Com_Printf( "PS_STATS " );
|
|
}
|
|
#endif
|
|
bitmask = MSG_ReadBits(16);
|
|
for( i=0 ; i<MAX_Q3_STATS ; i++ )
|
|
{
|
|
if( bitmask & (1 << i) )
|
|
{
|
|
to->stats[i] = (signed short)MSG_ReadBits(-16);
|
|
}
|
|
}
|
|
}
|
|
|
|
// PS_PERSISTANT
|
|
if( MSG_ReadBits(1 ) )
|
|
{
|
|
#ifdef MSG_SHOWNET
|
|
if( moredump )
|
|
{
|
|
Com_Printf( "PS_PERSISTANT " );
|
|
}
|
|
#endif
|
|
|
|
bitmask = MSG_ReadBits(16);
|
|
for( i=0 ; i<MAX_Q3_PERSISTANT ; i++ )
|
|
{
|
|
if( bitmask & (1 << i) )
|
|
{
|
|
to->persistant[i] = (signed short)MSG_ReadBits(-16);
|
|
}
|
|
}
|
|
}
|
|
|
|
// PS_AMMO
|
|
if( MSG_ReadBits(1) )
|
|
{
|
|
#ifdef MSG_SHOWNET
|
|
if( moredump )
|
|
{
|
|
Com_Printf( "PS_AMMO " );
|
|
}
|
|
#endif
|
|
|
|
bitmask = MSG_ReadBits(16);
|
|
for( i=0 ; i<MAX_Q3_WEAPONS ; i++ )
|
|
{
|
|
if( bitmask & (1 << i) )
|
|
{
|
|
to->ammo[i] = (signed short)MSG_ReadBits(16);
|
|
}
|
|
}
|
|
}
|
|
|
|
// PS_POWERUPS
|
|
if( MSG_ReadBits(1) )
|
|
{
|
|
#ifdef MSG_SHOWNET
|
|
if( moredump ) {
|
|
Com_Printf( "PS_POWERUPS " );
|
|
}
|
|
#endif
|
|
|
|
bitmask = MSG_ReadBits(16);
|
|
for( i=0 ; i<MAX_Q3_POWERUPS ; i++ )
|
|
{
|
|
if( bitmask & (1 << i) )
|
|
{
|
|
to->powerups[i] = MSG_ReadLong();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef MSG_SHOWNET
|
|
if( dump )
|
|
{
|
|
Com_Printf( " (%i bits)\n", msg->bit - startbits );
|
|
}
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
////////////////////////////////////////////////////////////
|
|
//user commands
|
|
|
|
int kbitmask[32] = {
|
|
0x00000001, 0x00000003, 0x00000007, 0x0000000F,
|
|
0x0000001F, 0x0000003F, 0x0000007F, 0x000000FF,
|
|
0x000001FF, 0x000003FF, 0x000007FF, 0x00000FFF,
|
|
0x00001FFF, 0x00003FFF, 0x00007FFF, 0x0000FFFF,
|
|
0x0001FFFF, 0x0003FFFF, 0x0007FFFF, 0x000FFFFF,
|
|
0x001FFFFf, 0x003FFFFF, 0x007FFFFF, 0x00FFFFFF,
|
|
0x01FFFFFF, 0x03FFFFFF, 0x07FFFFFF, 0x0FFFFFFF,
|
|
0x1FFFFFFF, 0x3FFFFFFF, 0x7FFFFFFF, 0xFFFFFFFF,
|
|
};
|
|
|
|
static int MSG_ReadDeltaKey(int key, int from, int bits)
|
|
{
|
|
if (MSG_ReadBits(1))
|
|
return MSG_ReadBits(bits)^ (key & kbitmask[bits]);
|
|
else
|
|
return from;
|
|
}
|
|
void MSG_Q3_ReadDeltaUsercmd(int key, const usercmd_t *from, usercmd_t *to)
|
|
{
|
|
if (MSG_ReadBits(1))
|
|
to->servertime = MSG_ReadBits(8) + from->servertime;
|
|
else
|
|
to->servertime = MSG_ReadBits(32);
|
|
|
|
if (!MSG_ReadBits(1))
|
|
{
|
|
to->angles[0] = from->angles[0];
|
|
to->angles[1] = from->angles[1];
|
|
to->angles[2] = from->angles[2];
|
|
to->forwardmove = from->forwardmove;
|
|
to->sidemove = from->sidemove;
|
|
to->upmove = from->upmove;
|
|
to->buttons = from->buttons;
|
|
to->weapon = from->weapon;
|
|
}
|
|
else
|
|
{
|
|
key ^= to->servertime;
|
|
to->angles[0] = MSG_ReadDeltaKey(key, from->angles[0], 16);
|
|
to->angles[1] = MSG_ReadDeltaKey(key, from->angles[1], 16);
|
|
to->angles[2] = MSG_ReadDeltaKey(key, from->angles[2], 16);
|
|
to->forwardmove = MSG_ReadDeltaKey(key, from->forwardmove, 8);
|
|
to->sidemove = MSG_ReadDeltaKey(key, from->sidemove, 8);
|
|
to->upmove = MSG_ReadDeltaKey(key, from->upmove, 8);
|
|
to->buttons = MSG_ReadDeltaKey(key, from->buttons, 16);
|
|
to->weapon = MSG_ReadDeltaKey(key, from->weapon, 8);
|
|
}
|
|
}
|
|
|