/*
* =============
* PF_aim
*
* Pick a vector for the player to shoot along
* vector aim(entity, missilespeed)
* =============
*/
static void PF_aim()
{
edict_t ent = GetEdict(OFS.OFS_PARM0);
float speed = GetFloat(OFS.OFS_PARM1);
Vector3 start = Common.ToVector(ref ent.v.origin);
start.Z += 20;
// try sending a trace straight
Vector3 dir;
Mathlib.Copy(ref Progs.GlobalStruct.v_forward, out dir);
Vector3 end = start + dir * 2048;
trace_t tr = Server.Move(ref start, ref Common.ZeroVector, ref Common.ZeroVector, ref end, 0, ent);
if (tr.ent != null && tr.ent.v.takedamage == Damages.DAMAGE_AIM &&
(Host.TeamPlay == 0 || ent.v.team <= 0 || ent.v.team != tr.ent.v.team))
{
ReturnVector(ref Progs.GlobalStruct.v_forward);
return;
}
// try all possible entities
Vector3 bestdir = dir;
float bestdist = Server.Aim;
edict_t bestent = null;
for (int i = 1; i < Server.sv.num_edicts; i++)
{
edict_t check = Server.sv.edicts[i];
if (check.v.takedamage != Damages.DAMAGE_AIM)
{
continue;
}
if (check == ent)
{
continue;
}
if (Host.TeamPlay != 0 && ent.v.team > 0 && ent.v.team == check.v.team)
{
continue; // don't aim at teammate
}
v3f tmp;
Mathlib.VectorAdd(ref check.v.mins, ref check.v.maxs, out tmp);
Mathlib.VectorMA(ref check.v.origin, 0.5f, ref tmp, out tmp);
Mathlib.Copy(ref tmp, out end);
dir = end - start;
Mathlib.Normalize(ref dir);
float dist = Vector3.Dot(dir, Common.ToVector(ref Progs.GlobalStruct.v_forward));
if (dist < bestdist)
{
continue; // to far to turn
}
tr = Server.Move(ref start, ref Common.ZeroVector, ref Common.ZeroVector, ref end, 0, ent);
if (tr.ent == check)
{ // can shoot at this one
bestdist = dist;
bestent = check;
}
}
if (bestent != null)
{
v3f dir2, end2;
Mathlib.VectorSubtract(ref bestent.v.origin, ref ent.v.origin, out dir2);
float dist = Mathlib.DotProduct(ref dir2, ref Progs.GlobalStruct.v_forward);
Mathlib.VectorScale(ref Progs.GlobalStruct.v_forward, dist, out end2);
end2.z = dir2.z;
Mathlib.Normalize(ref end2);
ReturnVector(ref end2);
}
else
{
ReturnVector(ref bestdir);
}
}
/// <summary>
/// SV_WriteEntitiesToClient
/// </summary>
static void WriteEntitiesToClient(edict_t clent, MsgWriter msg)
{
// find the client's PVS
Vector3 org = Common.ToVector(ref clent.v.origin) + Common.ToVector(ref clent.v.view_ofs);
byte[] pvs = FatPVS(ref org);
// send over all entities (except the client) that touch the pvs
for (int e = 1; e < sv.num_edicts; e++)
{
edict_t ent = sv.edicts[e];
// ignore if not touching a PV leaf
if (ent != clent) // clent is ALLWAYS sent
{
// ignore ents without visible models
string mname = Progs.GetString(ent.v.model);
if (String.IsNullOrEmpty(mname))
{
continue;
}
int i;
for (i = 0; i < ent.num_leafs; i++)
{
if ((pvs[ent.leafnums[i] >> 3] & (1 << (ent.leafnums[i] & 7))) != 0)
{
break;
}
}
if (i == ent.num_leafs)
{
continue; // not visible
}
}
if (msg.Capacity - msg.Length < 16)
{
Con.Print("packet overflow\n");
return;
}
// send an update
int bits = 0;
v3f miss;
Mathlib.VectorSubtract(ref ent.v.origin, ref ent.baseline.origin, out miss);
if (miss.x < -0.1f || miss.x > 0.1f)
{
bits |= Protocol.U_ORIGIN1;
}
if (miss.y < -0.1f || miss.y > 0.1f)
{
bits |= Protocol.U_ORIGIN2;
}
if (miss.z < -0.1f || miss.z > 0.1f)
{
bits |= Protocol.U_ORIGIN3;
}
if (ent.v.angles.x != ent.baseline.angles.x)
{
bits |= Protocol.U_ANGLE1;
}
if (ent.v.angles.y != ent.baseline.angles.y)
{
bits |= Protocol.U_ANGLE2;
}
if (ent.v.angles.z != ent.baseline.angles.z)
{
bits |= Protocol.U_ANGLE3;
}
if (ent.v.movetype == Movetypes.MOVETYPE_STEP)
{
bits |= Protocol.U_NOLERP; // don't mess up the step animation
}
if (ent.baseline.colormap != ent.v.colormap)
{
bits |= Protocol.U_COLORMAP;
}
if (ent.baseline.skin != ent.v.skin)
{
bits |= Protocol.U_SKIN;
}
if (ent.baseline.frame != ent.v.frame)
{
bits |= Protocol.U_FRAME;
}
if (ent.baseline.effects != ent.v.effects)
{
bits |= Protocol.U_EFFECTS;
}
if (ent.baseline.modelindex != ent.v.modelindex)
{
bits |= Protocol.U_MODEL;
}
if (e >= 256)
{
bits |= Protocol.U_LONGENTITY;
}
if (bits >= 256)
{
bits |= Protocol.U_MOREBITS;
}
//
// write the message
//
msg.WriteByte(bits | Protocol.U_SIGNAL);
if ((bits & Protocol.U_MOREBITS) != 0)
{
msg.WriteByte(bits >> 8);
}
if ((bits & Protocol.U_LONGENTITY) != 0)
{
msg.WriteShort(e);
}
else
{
msg.WriteByte(e);
}
if ((bits & Protocol.U_MODEL) != 0)
{
msg.WriteByte((int)ent.v.modelindex);
}
if ((bits & Protocol.U_FRAME) != 0)
{
msg.WriteByte((int)ent.v.frame);
}
if ((bits & Protocol.U_COLORMAP) != 0)
{
msg.WriteByte((int)ent.v.colormap);
}
if ((bits & Protocol.U_SKIN) != 0)
{
msg.WriteByte((int)ent.v.skin);
}
if ((bits & Protocol.U_EFFECTS) != 0)
{
msg.WriteByte((int)ent.v.effects);
}
if ((bits & Protocol.U_ORIGIN1) != 0)
{
msg.WriteCoord(ent.v.origin.x);
}
if ((bits & Protocol.U_ANGLE1) != 0)
{
msg.WriteAngle(ent.v.angles.x);
}
if ((bits & Protocol.U_ORIGIN2) != 0)
{
msg.WriteCoord(ent.v.origin.y);
}
if ((bits & Protocol.U_ANGLE2) != 0)
{
msg.WriteAngle(ent.v.angles.y);
}
if ((bits & Protocol.U_ORIGIN3) != 0)
{
msg.WriteCoord(ent.v.origin.z);
}
if ((bits & Protocol.U_ANGLE3) != 0)
{
msg.WriteAngle(ent.v.angles.z);
}
}
}