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compact position packets

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git-svn-id: svn://svn.code.sf.net/p/actiongame/code/trunk/ac@4606 e016b1c5-ed68-44aa-a2f7-31cac88cffde
This commit is contained in:
ac_stef
2009-08-08 11:59:22 +00:00
parent 3810fb36ed
commit af08ce4044
6 changed files with 214 additions and 51 deletions
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source/src/client.cpp
+68 -17
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@@ -339,23 +339,74 @@ void c2sinfo(playerent *d) // send update to the server
if(d->state==CS_ALIVE || d->state==CS_EDITING)
{
ENetPacket *packet = enet_packet_create(NULL, 100, 0);
ucharbuf q(packet->data, packet->dataLength);
putint(q, SV_POS);
putint(q, d->clientnum);
putuint(q, (int)(d->o.x*DMF)); // quantize coordinates to 1/16th of a cube, between 1 and 3 bytes
putuint(q, (int)(d->o.y*DMF));
putuint(q, (int)((d->o.z - d->eyeheight)*DMF));
putuint(q, (int)d->yaw);
putint(q, (int)d->pitch);
putint(q, (int)(125*d->roll/20));
putint(q, (int)(d->vel.x*DVELF));
putint(q, (int)(d->vel.y*DVELF));
putint(q, (int)(d->vel.z*DVELF));
// pack rest in 1 int: strafe:2, move:2, onfloor:1, onladder: 1
putuint(q, (d->strafe&3) | ((d->move&3)<<2) | (((int)d->onfloor)<<4) | (((int)d->onladder)<<5) | ((d->lifesequence&1)<<6) | (((int)d->crouching)<<7));
enet_packet_resize(packet, q.length());
int cn = d->clientnum,
x = (int)(d->o.x*DMF), // quantize coordinates to 1/16th of a cube, between 1 and 3 bytes
y = (int)(d->o.y*DMF),
z = (int)((d->o.z - d->eyeheight)*DMF),
ya = (int)((512 * d->yaw) / 360.0f),
pi = (int)((127 * d->pitch) / 90.0f),
r = (int)(31*d->roll/20),
dx = (int)(d->vel.x*DVELF),
dy = (int)(d->vel.y*DVELF),
dz = (int)(d->vel.z*DVELF),
// pack rest in 1 int: strafe:2, move:2, onfloor:1, onladder: 1
f = (d->strafe&3) | ((d->move&3)<<2) | (((int)d->onfloor)<<4) | (((int)d->onladder)<<5) | ((d->lifesequence&1)<<6) | (((int)d->crouching)<<7);
int sizexy = 1 << (sfactor + 4);
if(cn >= 0 && cn < 32 &&
x >= 0 && x < sizexy &&
y >= 0 && y < sizexy &&
z >= -2047 && z <= 2047 &&
ya >= 0 && ya < 512 &&
pi >= -128 && pi <= 127 &&
r >= -32 && r <= 31 &&
dx >= -8 && dx <= 7 &&
dy >= -8 && dy <= 7 &&
dz >= -8 && dz <= 7)
{ // compact POS packet
bool noroll = !r, novel = !dx && !dy && !dz;
bitbuf q(packet->data, packet->dataLength);
putint(q, SV_POSC);
q.putbits(5, cn);
q.putbits(sfactor + 4, x);
q.putbits(sfactor + 4, y);
q.putbits(9, ya);
q.putbits(8, pi + 128);
q.putbits(1, noroll ? 1 : 0);
if(!noroll) q.putbits(6, r + 32);
q.putbits(1, novel ? 1 : 0);
if(!novel)
{
q.putbits(4, dx + 8);
q.putbits(4, dy + 8);
q.putbits(4, dz + 8);
}
q.putbits(8, f);
q.putbits(1, z < 0 ? 1 : 0);
if(z < 0) z = -z; // z is encoded with 3..10 bits minimum (fitted to byte boundaries), or full 11 bits if necessary
int s = (q.rembits() - 1 + 8) % 8;
if(s < 3) s += 8;
if(z >= (1 << s)) s = 11;
q.putbits(1, s == 11 ? 1 : 0);
q.putbits(s, z);
enet_packet_resize(packet, q.length());
}
else
{ // classic POS packet
ucharbuf q(packet->data, packet->dataLength);
putint(q, SV_POS);
putint(q, d->clientnum);
putuint(q, x);
putuint(q, y);
putuint(q, z);
putuint(q, (int)d->yaw);
putint(q, (int)d->pitch);
putint(q, (int)(125*d->roll/20));
putint(q, dx);
putint(q, dy);
putint(q, dz);
putuint(q, f);
enet_packet_resize(packet, q.length());
}
sendpackettoserv(0, packet);
}