/// <summary>
/// SV_Physics_Pusher
/// </summary>
static void Physics_Pusher(edict_t ent)
{
float oldltime = ent.v.ltime;
float thinktime = ent.v.nextthink;
float movetime;
if (thinktime < ent.v.ltime + Host.FrameTime)
{
movetime = thinktime - ent.v.ltime;
if (movetime < 0)
{
movetime = 0;
}
}
else
{
movetime = (float)Host.FrameTime;
}
if (movetime != 0)
{
PushMove(ent, movetime); // advances ent.v.ltime if not blocked
}
if (thinktime > oldltime && thinktime <= ent.v.ltime)
{
ent.v.nextthink = 0;
Progs.GlobalStruct.time = (float)sv.time;
Progs.GlobalStruct.self = EdictToProg(ent);
Progs.GlobalStruct.other = EdictToProg(sv.edicts[0]);
Progs.Execute(ent.v.think);
if (ent.free)
{
return;
}
}
}
/// <summary>
/// SV_RunThink
/// Runs thinking code if time. There is some play in the exact time the think
/// function will be called, because it is called before any movement is done
/// in a frame. Not used for pushmove objects, because they must be exact.
/// Returns false if the entity removed itself.
/// </summary>
static bool RunThink(edict_t ent)
{
float thinktime;
thinktime = ent.v.nextthink;
if (thinktime <= 0 || thinktime > sv.time + Host.FrameTime)
{
return(true);
}
if (thinktime < sv.time)
{
thinktime = (float)sv.time; // don't let things stay in the past.
}
// it is possible to start that way
// by a trigger with a local time.
ent.v.nextthink = 0;
Progs.GlobalStruct.time = thinktime;
Progs.GlobalStruct.self = EdictToProg(ent);
Progs.GlobalStruct.other = EdictToProg(sv.edicts[0]);
Progs.Execute(ent.v.think);
return(!ent.free);
}
/*
* =================
* PF_findradius
*
* Returns a chain of entities that have origins within a spherical area
*
* findradius (origin, radius)
* =================
*/
static unsafe void PF_findradius()
{
edict_t chain = Server.sv.edicts[0];
float *org = GetVector(OFS.OFS_PARM0);
float rad = GetFloat(OFS.OFS_PARM1);
Vector3 vorg;
Copy(org, out vorg);
for (int i = 1; i < Server.sv.num_edicts; i++)
{
edict_t ent = Server.sv.edicts[i];
if (ent.free)
{
continue;
}
if (ent.v.solid == Solids.SOLID_NOT)
{
continue;
}
Vector3 v = vorg - (Common.ToVector(ref ent.v.origin) +
(Common.ToVector(ref ent.v.mins) + Common.ToVector(ref ent.v.maxs)) * 0.5f);
if (v.Length > rad)
{
continue;
}
ent.v.chain = Server.EdictToProg(chain);
chain = ent;
}
ReturnEdict(chain);
}
/// <summary>
/// SV_MoveToGoal
/// </summary>
public static void MoveToGoal()
{
edict_t ent = ProgToEdict(Progs.GlobalStruct.self);
edict_t goal = ProgToEdict(ent.v.goalentity);
float dist = QBuiltins.GetFloat(OFS.OFS_PARM0);
if (((int)ent.v.flags & (EdictFlags.FL_ONGROUND | EdictFlags.FL_FLY | EdictFlags.FL_SWIM)) == 0)
{
QBuiltins.ReturnFloat(0);
return;
}
// if the next step hits the enemy, return immediately
if (ProgToEdict(ent.v.enemy) != sv.edicts[0] && CloseEnough(ent, goal, dist))
{
return;
}
// bump around...
if ((Sys.Random() & 3) == 1 || !StepDirection(ent, ent.v.ideal_yaw, dist))
{
NewChaseDir(ent, goal, dist);
}
}
/// <summary>
/// SV_WriteClientdataToMessage
/// </summary>
public static void WriteClientDataToMessage(edict_t ent, MsgWriter msg)
{
//
// send a damage message
//
if (ent.v.dmg_take != 0 || ent.v.dmg_save != 0)
{
edict_t other = ProgToEdict(ent.v.dmg_inflictor);
msg.WriteByte(Protocol.svc_damage);
msg.WriteByte((int)ent.v.dmg_save);
msg.WriteByte((int)ent.v.dmg_take);
msg.WriteCoord(other.v.origin.x + 0.5f * (other.v.mins.x + other.v.maxs.x));
msg.WriteCoord(other.v.origin.y + 0.5f * (other.v.mins.y + other.v.maxs.y));
msg.WriteCoord(other.v.origin.z + 0.5f * (other.v.mins.z + other.v.maxs.z));
ent.v.dmg_take = 0;
ent.v.dmg_save = 0;
}
//
// send the current viewpos offset from the view entity
//
SetIdealPitch(); // how much to look up / down ideally
// a fixangle might get lost in a dropped packet. Oh well.
if (ent.v.fixangle != 0)
{
msg.WriteByte(Protocol.svc_setangle);
msg.WriteAngle(ent.v.angles.x);
msg.WriteAngle(ent.v.angles.y);
msg.WriteAngle(ent.v.angles.z);
ent.v.fixangle = 0;
}
int bits = 0;
if (ent.v.view_ofs.z != Protocol.DEFAULT_VIEWHEIGHT)
{
bits |= Protocol.SU_VIEWHEIGHT;
}
if (ent.v.idealpitch != 0)
{
bits |= Protocol.SU_IDEALPITCH;
}
// stuff the sigil bits into the high bits of items for sbar, or else
// mix in items2
float val = Progs.GetEdictFieldFloat(ent, "items2", 0);
int items;
if (val != 0)
{
items = (int)ent.v.items | ((int)val << 23);
}
else
{
items = (int)ent.v.items | ((int)Progs.GlobalStruct.serverflags << 28);
}
bits |= Protocol.SU_ITEMS;
if (((int)ent.v.flags & EdictFlags.FL_ONGROUND) != 0)
{
bits |= Protocol.SU_ONGROUND;
}
if (ent.v.waterlevel >= 2)
{
bits |= Protocol.SU_INWATER;
}
if (ent.v.punchangle.x != 0)
{
bits |= Protocol.SU_PUNCH1;
}
if (ent.v.punchangle.y != 0)
{
bits |= Protocol.SU_PUNCH2;
}
if (ent.v.punchangle.z != 0)
{
bits |= Protocol.SU_PUNCH3;
}
if (ent.v.velocity.x != 0)
{
bits |= Protocol.SU_VELOCITY1;
}
if (ent.v.velocity.y != 0)
{
bits |= Protocol.SU_VELOCITY2;
}
if (ent.v.velocity.z != 0)
{
bits |= Protocol.SU_VELOCITY3;
}
if (ent.v.weaponframe != 0)
{
bits |= Protocol.SU_WEAPONFRAME;
}
if (ent.v.armorvalue != 0)
{
bits |= Protocol.SU_ARMOR;
}
// if (ent.v.weapon)
bits |= Protocol.SU_WEAPON;
// send the data
msg.WriteByte(Protocol.svc_clientdata);
msg.WriteShort(bits);
if ((bits & Protocol.SU_VIEWHEIGHT) != 0)
{
msg.WriteChar((int)ent.v.view_ofs.z);
}
if ((bits & Protocol.SU_IDEALPITCH) != 0)
{
msg.WriteChar((int)ent.v.idealpitch);
}
if ((bits & Protocol.SU_PUNCH1) != 0)
{
msg.WriteChar((int)ent.v.punchangle.x);
}
if ((bits & Protocol.SU_VELOCITY1) != 0)
{
msg.WriteChar((int)(ent.v.velocity.x / 16));
}
if ((bits & Protocol.SU_PUNCH2) != 0)
{
msg.WriteChar((int)ent.v.punchangle.y);
}
if ((bits & Protocol.SU_VELOCITY2) != 0)
{
msg.WriteChar((int)(ent.v.velocity.y / 16));
}
if ((bits & Protocol.SU_PUNCH3) != 0)
{
msg.WriteChar((int)ent.v.punchangle.z);
}
if ((bits & Protocol.SU_VELOCITY3) != 0)
{
msg.WriteChar((int)(ent.v.velocity.z / 16));
}
// always sent
msg.WriteLong(items);
if ((bits & Protocol.SU_WEAPONFRAME) != 0)
{
msg.WriteByte((int)ent.v.weaponframe);
}
if ((bits & Protocol.SU_ARMOR) != 0)
{
msg.WriteByte((int)ent.v.armorvalue);
}
if ((bits & Protocol.SU_WEAPON) != 0)
{
msg.WriteByte(ModelIndex(Progs.GetString(ent.v.weaponmodel)));
}
msg.WriteShort((int)ent.v.health);
msg.WriteByte((int)ent.v.currentammo);
msg.WriteByte((int)ent.v.ammo_shells);
msg.WriteByte((int)ent.v.ammo_nails);
msg.WriteByte((int)ent.v.ammo_rockets);
msg.WriteByte((int)ent.v.ammo_cells);
if (Common.GameKind == GameKind.StandardQuake)
{
msg.WriteByte((int)ent.v.weapon);
}
else
{
for (int i = 0; i < 32; i++)
{
if ((((int)ent.v.weapon) & (1 << i)) != 0)
{
msg.WriteByte(i);
break;
}
}
}
}
static trace_t Move(ref v3f start, ref v3f mins, ref v3f maxs, ref v3f end, int type, edict_t passedict)
{
Vector3 vstart, vmins, vmaxs, vend;
Mathlib.Copy(ref start, out vstart);
Mathlib.Copy(ref mins, out vmins);
Mathlib.Copy(ref maxs, out vmaxs);
Mathlib.Copy(ref end, out vend);
return(Move(ref vstart, ref vmins, ref vmaxs, ref vend, type, passedict));
}
/// <summary>
/// SV_Physics_Client
/// Player character actions
/// </summary>
static void Physics_Client(edict_t ent, int num)
{
if (!svs.clients[num - 1].active)
{
return; // unconnected slot
}
//
// call standard client pre-think
//
Progs.GlobalStruct.time = (float)sv.time;
Progs.GlobalStruct.self = EdictToProg(ent);
Progs.Execute(Progs.GlobalStruct.PlayerPreThink);
//
// do a move
//
CheckVelocity(ent);
//
// decide which move function to call
//
switch ((int)ent.v.movetype)
{
case Movetypes.MOVETYPE_NONE:
if (!RunThink(ent))
{
return;
}
break;
case Movetypes.MOVETYPE_WALK:
if (!RunThink(ent))
{
return;
}
if (!CheckWater(ent) && ((int)ent.v.flags & EdictFlags.FL_WATERJUMP) == 0)
{
AddGravity(ent);
}
CheckStuck(ent);
WalkMove(ent);
break;
case Movetypes.MOVETYPE_TOSS:
case Movetypes.MOVETYPE_BOUNCE:
Physics_Toss(ent);
break;
case Movetypes.MOVETYPE_FLY:
if (!RunThink(ent))
{
return;
}
FlyMove(ent, (float)Host.FrameTime, null);
break;
case Movetypes.MOVETYPE_NOCLIP:
if (!RunThink(ent))
{
return;
}
Mathlib.VectorMA(ref ent.v.origin, (float)Host.FrameTime, ref ent.v.velocity, out ent.v.origin);
break;
default:
Sys.Error("SV_Physics_client: bad movetype {0}", (int)ent.v.movetype);
break;
}
//
// call standard player post-think
//
LinkEdict(ent, true);
Progs.GlobalStruct.time = (float)sv.time;
Progs.GlobalStruct.self = EdictToProg(ent);
Progs.Execute(Progs.GlobalStruct.PlayerPostThink);
}
/// <summary>
/// SV_Physics_Toss
/// Toss, bounce, and fly movement. When onground, do nothing.
/// </summary>
private static void Physics_Toss(edict_t ent)
{
// regular thinking
if (!RunThink(ent))
{
return;
}
// if onground, return without moving
if (((int)ent.v.flags & EdictFlags.FL_ONGROUND) != 0)
{
return;
}
CheckVelocity(ent);
// add gravity
if (ent.v.movetype != Movetypes.MOVETYPE_FLY && ent.v.movetype != Movetypes.MOVETYPE_FLYMISSILE)
{
AddGravity(ent);
}
// move angles
Mathlib.VectorMA(ref ent.v.angles, (float)Host.FrameTime, ref ent.v.avelocity, out ent.v.angles);
// move origin
v3f move;
Mathlib.VectorScale(ref ent.v.velocity, (float)Host.FrameTime, out move);
trace_t trace = PushEntity(ent, ref move);
if (trace.fraction == 1)
{
return;
}
if (ent.free)
{
return;
}
float backoff;
if (ent.v.movetype == Movetypes.MOVETYPE_BOUNCE)
{
backoff = 1.5f;
}
else
{
backoff = 1;
}
ClipVelocity(ref ent.v.velocity, ref trace.plane.normal, out ent.v.velocity, backoff);
// stop if on ground
if (trace.plane.normal.Z > 0.7f)
{
if (ent.v.velocity.z < 60 || ent.v.movetype != Movetypes.MOVETYPE_BOUNCE)
{
ent.v.flags = (int)ent.v.flags | EdictFlags.FL_ONGROUND;
ent.v.groundentity = EdictToProg(trace.ent);
ent.v.velocity = default(v3f);
ent.v.avelocity = default(v3f);
}
}
// check for in water
CheckWaterTransition(ent);
}
/// <summary>
/// SV_ClipToLinks
/// Mins and maxs enclose the entire area swept by the move
/// </summary>
static void ClipToLinks(areanode_t node, moveclip_t clip)
{
link_t next;
trace_t trace;
// touch linked edicts
for (link_t l = node.solid_edicts.Next; l != node.solid_edicts; l = next)
{
next = l.Next;
edict_t touch = (edict_t)l.Owner;// EDICT_FROM_AREA(l);
if (touch.v.solid == Solids.SOLID_NOT)
{
continue;
}
if (touch == clip.passedict)
{
continue;
}
if (touch.v.solid == Solids.SOLID_TRIGGER)
{
Sys.Error("Trigger in clipping list");
}
if (clip.type == MOVE_NOMONSTERS && touch.v.solid != Solids.SOLID_BSP)
{
continue;
}
if (clip.boxmins.X > touch.v.absmax.x || clip.boxmins.Y > touch.v.absmax.y ||
clip.boxmins.Z > touch.v.absmax.z || clip.boxmaxs.X < touch.v.absmin.x ||
clip.boxmaxs.Y < touch.v.absmin.y || clip.boxmaxs.Z < touch.v.absmin.z)
{
continue;
}
if (clip.passedict != null && clip.passedict.v.size.x != 0 && touch.v.size.x == 0)
{
continue; // points never interact
}
// might intersect, so do an exact clip
if (clip.trace.allsolid)
{
return;
}
if (clip.passedict != null)
{
if (ProgToEdict(touch.v.owner) == clip.passedict)
{
continue; // don't clip against own missiles
}
if (ProgToEdict(clip.passedict.v.owner) == touch)
{
continue; // don't clip against owner
}
}
if (((int)touch.v.flags & EdictFlags.FL_MONSTER) != 0)
{
trace = ClipMoveToEntity(touch, ref clip.start, ref clip.mins2, ref clip.maxs2, ref clip.end);
}
else
{
trace = ClipMoveToEntity(touch, ref clip.start, ref clip.mins, ref clip.maxs, ref clip.end);
}
if (trace.allsolid || trace.startsolid || trace.fraction < clip.trace.fraction)
{
trace.ent = touch;
if (clip.trace.startsolid)
{
clip.trace = trace;
clip.trace.startsolid = true;
}
else
{
clip.trace = trace;
}
}
else if (trace.startsolid)
{
clip.trace.startsolid = true;
}
}
// recurse down both sides
if (node.axis == -1)
{
return;
}
if (Mathlib.Comp(ref clip.boxmaxs, node.axis) > node.dist)
{
ClipToLinks(node.children[0], clip);
}
if (Mathlib.Comp(ref clip.boxmins, node.axis) < node.dist)
{
ClipToLinks(node.children[1], clip);
}
}
static void PF_Spawn()
{
edict_t ed = Server.AllocEdict();
ReturnEdict(ed);
}
/// <summary>
/// SV_FixCheckBottom
/// </summary>
static void FixCheckBottom(edict_t ent)
{
ent.v.flags = (int)ent.v.flags | EdictFlags.FL_PARTIALGROUND;
}
/// <summary>
/// SV_movestep
/// Called by monster program code.
/// The move will be adjusted for slopes and stairs, but if the move isn't
/// possible, no move is done, false is returned, and
/// pr_global_struct.trace_normal is set to the normal of the blocking wall
/// </summary>
public static bool MoveStep(edict_t ent, ref v3f move, bool relink)
{
trace_t trace;
// try the move
v3f oldorg = ent.v.origin;
v3f neworg;
Mathlib.VectorAdd(ref ent.v.origin, ref move, out neworg);
// flying monsters don't step up
if (((int)ent.v.flags & (EdictFlags.FL_SWIM | EdictFlags.FL_FLY)) != 0)
{
// try one move with vertical motion, then one without
for (int i = 0; i < 2; i++)
{
Mathlib.VectorAdd(ref ent.v.origin, ref move, out neworg);
edict_t enemy = ProgToEdict(ent.v.enemy);
if (i == 0 && enemy != sv.edicts[0])
{
float dz = ent.v.origin.z - enemy.v.origin.z;
if (dz > 40)
{
neworg.z -= 8;
}
if (dz < 30)
{
neworg.z += 8;
}
}
trace = Move(ref ent.v.origin, ref ent.v.mins, ref ent.v.maxs, ref neworg, 0, ent);
if (trace.fraction == 1)
{
if (((int)ent.v.flags & EdictFlags.FL_SWIM) != 0 &&
PointContents(ref trace.endpos) == Contents.CONTENTS_EMPTY)
{
return(false); // swim monster left water
}
Mathlib.Copy(ref trace.endpos, out ent.v.origin);
if (relink)
{
LinkEdict(ent, true);
}
return(true);
}
if (enemy == sv.edicts[0])
{
break;
}
}
return(false);
}
// push down from a step height above the wished position
neworg.z += STEPSIZE;
v3f end = neworg;
end.z -= STEPSIZE * 2;
trace = Move(ref neworg, ref ent.v.mins, ref ent.v.maxs, ref end, 0, ent);
if (trace.allsolid)
{
return(false);
}
if (trace.startsolid)
{
neworg.z -= STEPSIZE;
trace = Move(ref neworg, ref ent.v.mins, ref ent.v.maxs, ref end, 0, ent);
if (trace.allsolid || trace.startsolid)
{
return(false);
}
}
if (trace.fraction == 1)
{
// if monster had the ground pulled out, go ahead and fall
if (((int)ent.v.flags & EdictFlags.FL_PARTIALGROUND) != 0)
{
Mathlib.VectorAdd(ref ent.v.origin, ref move, out ent.v.origin);
if (relink)
{
LinkEdict(ent, true);
}
ent.v.flags = (int)ent.v.flags & ~EdictFlags.FL_ONGROUND;
return(true);
}
return(false); // walked off an edge
}
// check point traces down for dangling corners
Mathlib.Copy(ref trace.endpos, out ent.v.origin);
if (!CheckBottom(ent))
{
if (((int)ent.v.flags & EdictFlags.FL_PARTIALGROUND) != 0)
{
// entity had floor mostly pulled out from underneath it
// and is trying to correct
if (relink)
{
LinkEdict(ent, true);
}
return(true);
}
ent.v.origin = oldorg;
return(false);
}
if (((int)ent.v.flags & EdictFlags.FL_PARTIALGROUND) != 0)
{
ent.v.flags = (int)ent.v.flags & ~EdictFlags.FL_PARTIALGROUND;
}
ent.v.groundentity = EdictToProg(trace.ent);
// the move is ok
if (relink)
{
LinkEdict(ent, true);
}
return(true);
}
/// <summary>
/// SV_NewChaseDir
/// </summary>
static void NewChaseDir(edict_t actor, edict_t enemy, float dist)
{
float olddir = Mathlib.AngleMod((int)(actor.v.ideal_yaw / 45) * 45);
float turnaround = Mathlib.AngleMod(olddir - 180);
float deltax = enemy.v.origin.x - actor.v.origin.x;
float deltay = enemy.v.origin.y - actor.v.origin.y;
v3f d;
if (deltax > 10)
{
d.y = 0;
}
else if (deltax < -10)
{
d.y = 180;
}
else
{
d.y = DI_NODIR;
}
if (deltay < -10)
{
d.z = 270;
}
else if (deltay > 10)
{
d.z = 90;
}
else
{
d.z = DI_NODIR;
}
// try direct route
float tdir;
if (d.y != DI_NODIR && d.z != DI_NODIR)
{
if (d.y == 0)
{
tdir = (d.z == 90 ? 45 : 315);
}
else
{
tdir = (d.z == 90 ? 135 : 215);
}
if (tdir != turnaround && StepDirection(actor, tdir, dist))
{
return;
}
}
// try other directions
if (((Sys.Random() & 3) & 1) != 0 || Math.Abs(deltay) > Math.Abs(deltax))
{
tdir = d.y;
d.y = d.z;
d.z = tdir;
}
if (d.y != DI_NODIR && d.y != turnaround && StepDirection(actor, d.y, dist))
{
return;
}
if (d.z != DI_NODIR && d.z != turnaround && StepDirection(actor, d.z, dist))
{
return;
}
// there is no direct path to the player, so pick another direction
if (olddir != DI_NODIR && StepDirection(actor, olddir, dist))
{
return;
}
if ((Sys.Random() & 1) != 0) //randomly determine direction of search
{
for (tdir = 0; tdir <= 315; tdir += 45)
{
if (tdir != turnaround && StepDirection(actor, tdir, dist))
{
return;
}
}
}
else
{
for (tdir = 315; tdir >= 0; tdir -= 45)
{
if (tdir != turnaround && StepDirection(actor, tdir, dist))
{
return;
}
}
}
if (turnaround != DI_NODIR && StepDirection(actor, turnaround, dist))
{
return;
}
actor.v.ideal_yaw = olddir; // can't move
// if a bridge was pulled out from underneath a monster, it may not have
// a valid standing position at all
if (!CheckBottom(actor))
{
FixCheckBottom(actor);
}
}
/// <summary>
/// SV_CheckBottom
/// </summary>
public static bool CheckBottom(edict_t ent)
{
v3f mins, maxs;
Mathlib.VectorAdd(ref ent.v.origin, ref ent.v.mins, out mins);
Mathlib.VectorAdd(ref ent.v.origin, ref ent.v.maxs, out maxs);
// if all of the points under the corners are solid world, don't bother
// with the tougher checks
// the corners must be within 16 of the midpoint
Vector3 start;
start.Z = mins.z - 1;
for (int x = 0; x <= 1; x++)
{
for (int y = 0; y <= 1; y++)
{
start.X = (x != 0 ? maxs.x : mins.x);
start.Y = (y != 0 ? maxs.y : mins.y);
if (PointContents(ref start) != Contents.CONTENTS_SOLID)
{
goto RealCheck;
}
}
}
return(true); // we got out easy
RealCheck:
//
// check it for real...
//
start.Z = mins.z;
// the midpoint must be within 16 of the bottom
start.X = (mins.x + maxs.x) * 0.5f;
start.Y = (mins.y + maxs.y) * 0.5f;
Vector3 stop = start;
stop.Z -= 2 * STEPSIZE;
trace_t trace = Move(ref start, ref Common.ZeroVector, ref Common.ZeroVector, ref stop, 1, ent);
if (trace.fraction == 1.0)
{
return(false);
}
float mid = trace.endpos.Z;
float bottom = mid;
// the corners must be within 16 of the midpoint
for (int x = 0; x <= 1; x++)
{
for (int y = 0; y <= 1; y++)
{
start.X = stop.X = (x != 0 ? maxs.x : mins.x);
start.Y = stop.Y = (y != 0 ? maxs.y : mins.y);
trace = Move(ref start, ref Common.ZeroVector, ref Common.ZeroVector, ref stop, 1, ent);
if (trace.fraction != 1.0 && trace.endpos.Z > bottom)
{
bottom = trace.endpos.Z;
}
if (trace.fraction == 1.0 || mid - trace.endpos.Z > STEPSIZE)
{
return(false);
}
}
}
return(true);
}
/// <summary>
/// SV_LinkEdict
///
/// Needs to be called any time an entity changes origin, mins, maxs, or solid
/// flags ent->v.modified
/// sets ent->v.absmin and ent->v.absmax
/// if touchtriggers, calls prog functions for the intersected triggers
/// </summary>
public static void LinkEdict(edict_t ent, bool touch_triggers)
{
if (ent.area.Prev != null)
{
UnlinkEdict(ent); // unlink from old position
}
if (ent == sv.edicts[0])
{
return; // don't add the world
}
if (ent.free)
{
return;
}
// set the abs box
Mathlib.VectorAdd(ref ent.v.origin, ref ent.v.mins, out ent.v.absmin);
Mathlib.VectorAdd(ref ent.v.origin, ref ent.v.maxs, out ent.v.absmax);
//
// to make items easier to pick up and allow them to be grabbed off
// of shelves, the abs sizes are expanded
//
if (((int)ent.v.flags & EdictFlags.FL_ITEM) != 0)
{
ent.v.absmin.x -= 15;
ent.v.absmin.y -= 15;
ent.v.absmax.x += 15;
ent.v.absmax.y += 15;
}
else
{ // because movement is clipped an epsilon away from an actual edge,
// we must fully check even when bounding boxes don't quite touch
ent.v.absmin.x -= 1;
ent.v.absmin.y -= 1;
ent.v.absmin.z -= 1;
ent.v.absmax.x += 1;
ent.v.absmax.y += 1;
ent.v.absmax.z += 1;
}
// link to PVS leafs
ent.num_leafs = 0;
if (ent.v.modelindex != 0)
{
FindTouchedLeafs(ent, sv.worldmodel.nodes[0]);
}
if (ent.v.solid == Solids.SOLID_NOT)
{
return;
}
// find the first node that the ent's box crosses
areanode_t node = _AreaNodes[0];
while (true)
{
if (node.axis == -1)
{
break;
}
if (Mathlib.Comp(ref ent.v.absmin, node.axis) > node.dist)
{
node = node.children[0];
}
else if (Mathlib.Comp(ref ent.v.absmax, node.axis) < node.dist)
{
node = node.children[1];
}
else
{
break; // crosses the node
}
}
// link it in
if (ent.v.solid == Solids.SOLID_TRIGGER)
{
ent.area.InsertBefore(node.trigger_edicts);
}
else
{
ent.area.InsertBefore(node.solid_edicts);
}
// if touch_triggers, touch all entities at this node and decend for more
if (touch_triggers)
{
TouchLinks(ent, _AreaNodes[0]);
}
}
static void PF_Remove()
{
edict_t ed = GetEdict(OFS.OFS_PARM0);
Server.FreeEdict(ed);
}
/// <summary>
/// SV_Move
/// mins and maxs are relative
/// if the entire move stays in a solid volume, trace.allsolid will be set
/// if the starting point is in a solid, it will be allowed to move out to an open area
/// nomonsters is used for line of sight or edge testing, where mosnters
/// shouldn't be considered solid objects
/// passedict is explicitly excluded from clipping checks (normally NULL)
/// </summary>
public static trace_t Move(ref Vector3 start, ref Vector3 mins, ref Vector3 maxs, ref Vector3 end, int type, edict_t passedict)
{
moveclip_t clip = new moveclip_t();
// clip to world
clip.trace = ClipMoveToEntity(sv.edicts[0], ref start, ref mins, ref maxs, ref end);
clip.start = start;
clip.end = end;
clip.mins = mins;
clip.maxs = maxs;
clip.type = type;
clip.passedict = passedict;
if (type == MOVE_MISSILE)
{
clip.mins2 = Vector3.One * -15;
clip.maxs2 = Vector3.One * 15;
}
else
{
clip.mins2 = mins;
clip.maxs2 = maxs;
}
// create the bounding box of the entire move
MoveBounds(ref start, ref clip.mins2, ref clip.maxs2, ref end, out clip.boxmins, out clip.boxmaxs);
// clip to entities
ClipToLinks(_AreaNodes[0], clip);
return(clip.trace);
}
/// <summary>
/// PF_checkbottom
/// </summary>
static void PF_checkbottom()
{
edict_t ent = GetEdict(OFS.OFS_PARM0);
ReturnFloat(Server.CheckBottom(ent) ? 1 : 0);
}
/// <summary>
/// SV_PushMove
/// </summary>
static void PushMove(edict_t pusher, float movetime)
{
if (pusher.v.velocity.IsEmpty)
{
pusher.v.ltime += movetime;
return;
}
v3f move, mins, maxs;
Mathlib.VectorScale(ref pusher.v.velocity, movetime, out move);
Mathlib.VectorAdd(ref pusher.v.absmin, ref move, out mins);
Mathlib.VectorAdd(ref pusher.v.absmax, ref move, out maxs);
v3f pushorig = pusher.v.origin;
edict_t[] moved_edict = new edict_t[QDef.MAX_EDICTS];
v3f[] moved_from = new v3f[QDef.MAX_EDICTS];
// move the pusher to it's final position
Mathlib.VectorAdd(ref pusher.v.origin, ref move, out pusher.v.origin);
pusher.v.ltime += movetime;
LinkEdict(pusher, false);
// see if any solid entities are inside the final position
int num_moved = 0;
for (int e = 1; e < sv.num_edicts; e++)
{
edict_t check = sv.edicts[e];
if (check.free)
{
continue;
}
if (check.v.movetype == Movetypes.MOVETYPE_PUSH ||
check.v.movetype == Movetypes.MOVETYPE_NONE ||
check.v.movetype == Movetypes.MOVETYPE_NOCLIP)
{
continue;
}
// if the entity is standing on the pusher, it will definately be moved
if (!(((int)check.v.flags & EdictFlags.FL_ONGROUND) != 0 && ProgToEdict(check.v.groundentity) == pusher))
{
if (check.v.absmin.x >= maxs.x || check.v.absmin.y >= maxs.y ||
check.v.absmin.z >= maxs.z || check.v.absmax.x <= mins.x ||
check.v.absmax.y <= mins.y || check.v.absmax.z <= mins.z)
{
continue;
}
// see if the ent's bbox is inside the pusher's final position
if (TestEntityPosition(check) == null)
{
continue;
}
}
// remove the onground flag for non-players
if (check.v.movetype != Movetypes.MOVETYPE_WALK)
{
check.v.flags = (int)check.v.flags & ~EdictFlags.FL_ONGROUND;
}
v3f entorig = check.v.origin;
moved_from[num_moved] = entorig;
moved_edict[num_moved] = check;
num_moved++;
// try moving the contacted entity
pusher.v.solid = Solids.SOLID_NOT;
PushEntity(check, ref move);
pusher.v.solid = Solids.SOLID_BSP;
// if it is still inside the pusher, block
edict_t block = TestEntityPosition(check);
if (block != null)
{
// fail the move
if (check.v.mins.x == check.v.maxs.x)
{
continue;
}
if (check.v.solid == Solids.SOLID_NOT || check.v.solid == Solids.SOLID_TRIGGER)
{
// corpse
check.v.mins.x = check.v.mins.y = 0;
check.v.maxs = check.v.mins;
continue;
}
check.v.origin = entorig;
LinkEdict(check, true);
pusher.v.origin = pushorig;
LinkEdict(pusher, false);
pusher.v.ltime -= movetime;
// if the pusher has a "blocked" function, call it
// otherwise, just stay in place until the obstacle is gone
if (pusher.v.blocked != 0)
{
Progs.GlobalStruct.self = EdictToProg(pusher);
Progs.GlobalStruct.other = EdictToProg(check);
Progs.Execute(pusher.v.blocked);
}
// move back any entities we already moved
for (int i = 0; i < num_moved; i++)
{
moved_edict[i].v.origin = moved_from[i];
LinkEdict(moved_edict[i], false);
}
return;
}
}
}
/*
* =============
* 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_Physics_None
/// Non moving objects can only think
/// </summary>
static void Physics_None(edict_t ent)
{
// regular thinking
RunThink(ent);
}
/// <summary>
/// RETURN_EDICT(e) (((int *)pr_globals)[OFS_RETURN] = EDICT_TO_PROG(e))
/// </summary>
public static unsafe void ReturnEdict(edict_t e)
{
int prog = Server.EdictToProg(e);
ReturnInt(prog);
}
/// <summary>
/// SV_Physics
/// </summary>
public static void Physics()
{
// let the progs know that a new frame has started
Progs.GlobalStruct.self = EdictToProg(sv.edicts[0]);
Progs.GlobalStruct.other = Progs.GlobalStruct.self;
Progs.GlobalStruct.time = (float)sv.time;
Progs.Execute(Progs.GlobalStruct.StartFrame);
//
// treat each object in turn
//
for (int i = 0; i < sv.num_edicts; i++)
{
edict_t ent = sv.edicts[i];
if (ent.free)
{
continue;
}
if (Progs.GlobalStruct.force_retouch != 0)
{
LinkEdict(ent, true); // force retouch even for stationary
}
if (i > 0 && i <= svs.maxclients)
{
Physics_Client(ent, i);
}
else
{
switch ((int)ent.v.movetype)
{
case Movetypes.MOVETYPE_PUSH:
Physics_Pusher(ent);
break;
case Movetypes.MOVETYPE_NONE:
Physics_None(ent);
break;
case Movetypes.MOVETYPE_NOCLIP:
Physics_Noclip(ent);
break;
case Movetypes.MOVETYPE_STEP:
Physics_Step(ent);
break;
case Movetypes.MOVETYPE_TOSS:
case Movetypes.MOVETYPE_BOUNCE:
case Movetypes.MOVETYPE_FLY:
case Movetypes.MOVETYPE_FLYMISSILE:
Physics_Toss(ent);
break;
default:
Sys.Error("SV_Physics: bad movetype {0}", (int)ent.v.movetype);
break;
}
}
}
if (Progs.GlobalStruct.force_retouch != 0)
{
Progs.GlobalStruct.force_retouch -= 1;
}
sv.time += Host.FrameTime;
}
static void SetMinMaxSize(edict_t e, ref Vector3 min, ref Vector3 max, bool rotate)
{
if (min.X > max.X || min.Y > max.Y || min.Z > max.Z)
{
Progs.RunError("backwards mins/maxs");
}
rotate = false; // FIXME: implement rotation properly again
Vector3 rmin = min, rmax = max;
if (!rotate)
{
//rmin = min;
//rmax = max;
}
else
{
// find min / max for rotations
//angles = e.v.angles;
//a = angles[1] / 180 * M_PI;
//xvector[0] = cos(a);
//xvector[1] = sin(a);
//yvector[0] = -sin(a);
//yvector[1] = cos(a);
//VectorCopy(min, bounds[0]);
//VectorCopy(max, bounds[1]);
//rmin[0] = rmin[1] = rmin[2] = 9999;
//rmax[0] = rmax[1] = rmax[2] = -9999;
//for (i = 0; i <= 1; i++)
//{
// base[0] = bounds[i][0];
// for (j = 0; j <= 1; j++)
// {
// base[1] = bounds[j][1];
// for (k = 0; k <= 1; k++)
// {
// base[2] = bounds[k][2];
// // transform the point
// transformed[0] = xvector[0] * base[0] + yvector[0] * base[1];
// transformed[1] = xvector[1] * base[0] + yvector[1] * base[1];
// transformed[2] = base[2];
// for (l = 0; l < 3; l++)
// {
// if (transformed[l] < rmin[l])
// rmin[l] = transformed[l];
// if (transformed[l] > rmax[l])
// rmax[l] = transformed[l];
// }
// }
// }
//}
}
// set derived values
Mathlib.Copy(ref rmin, out e.v.mins);
Mathlib.Copy(ref rmax, out e.v.maxs);
Vector3 s = max - min;
Mathlib.Copy(ref s, out e.v.size);
Server.LinkEdict(e, false);
}
/// <summary>
/// SV_WalkMove
/// Only used by players
/// </summary>
static void WalkMove(edict_t ent)
{
//
// do a regular slide move unless it looks like you ran into a step
//
int oldonground = (int)ent.v.flags & EdictFlags.FL_ONGROUND;
ent.v.flags = (int)ent.v.flags & ~EdictFlags.FL_ONGROUND;
v3f oldorg = ent.v.origin;
v3f oldvel = ent.v.velocity;
trace_t steptrace = new trace_t();
int clip = FlyMove(ent, (float)Host.FrameTime, steptrace);
if ((clip & 2) == 0)
{
return; // move didn't block on a step
}
if (ent.v.movetype != Movetypes.MOVETYPE_WALK)
{
return; // gibbed by a trigger
}
if (_NoStep.Value != 0)
{
return;
}
if (((int)_Player.v.flags & EdictFlags.FL_WATERJUMP) != 0)
{
return;
}
v3f nosteporg = ent.v.origin;
v3f nostepvel = ent.v.velocity;
//
// try moving up and forward to go up a step
//
ent.v.origin = oldorg; // back to start pos
v3f upmove = Common.ZeroVector3f;
v3f downmove = upmove;
upmove.z = STEPSIZE;
downmove.z = (float)(-STEPSIZE + oldvel.z * Host.FrameTime);
// move up
PushEntity(ent, ref upmove); // FIXME: don't link?
// move forward
ent.v.velocity.x = oldvel.x;
ent.v.velocity.y = oldvel.y;
ent.v.velocity.z = 0;
clip = FlyMove(ent, (float)Host.FrameTime, steptrace);
// check for stuckness, possibly due to the limited precision of floats
// in the clipping hulls
if (clip != 0)
{
if (Math.Abs(oldorg.y - ent.v.origin.y) < 0.03125 && Math.Abs(oldorg.x - ent.v.origin.x) < 0.03125)
{
// stepping up didn't make any progress
clip = TryUnstick(ent, ref oldvel);
}
}
// extra friction based on view angle
if ((clip & 2) != 0)
{
WallFriction(ent, steptrace);
}
// move down
trace_t downtrace = PushEntity(ent, ref downmove); // FIXME: don't link?
if (downtrace.plane.normal.Z > 0.7)
{
if (ent.v.solid == Solids.SOLID_BSP)
{
ent.v.flags = (int)ent.v.flags | EdictFlags.FL_ONGROUND;
ent.v.groundentity = EdictToProg(downtrace.ent);
}
}
else
{
// if the push down didn't end up on good ground, use the move without
// the step up. This happens near wall / slope combinations, and can
// cause the player to hop up higher on a slope too steep to climb
ent.v.origin = nosteporg;
ent.v.velocity = nostepvel;
}
}
/// <summary>
/// ED_LoadFromFile
/// The entities are directly placed in the array, rather than allocated with
/// ED_Alloc, because otherwise an error loading the map would have entity
/// number references out of order.
///
/// Creates a server's entity / program execution context by
/// parsing textual entity definitions out of an ent file.
///
/// Used for both fresh maps and savegame loads. A fresh map would also need
/// to call ED_CallSpawnFunctions () to let the objects initialize themselves.
/// </summary>
public static void LoadFromFile(string data)
{
edict_t ent = null;
int inhibit = 0;
Progs.GlobalStruct.time = (float)Server.sv.time;
// parse ents
while (true)
{
// parse the opening brace
data = Common.Parse(data);
if (data == null)
{
break;
}
if (Common.Token != "{")
{
Sys.Error("ED_LoadFromFile: found {0} when expecting {", Common.Token);
}
if (ent == null)
{
ent = Server.EdictNum(0);
}
else
{
ent = Server.AllocEdict();
}
data = ParseEdict(data, ent);
// remove things from different skill levels or deathmatch
if (Host.Deathmatch != 0)
{
if (((int)ent.v.spawnflags & SpawnFlags.SPAWNFLAG_NOT_DEATHMATCH) != 0)
{
Server.FreeEdict(ent);
inhibit++;
continue;
}
}
else if ((Host.CurrentSkill == 0 && ((int)ent.v.spawnflags & SpawnFlags.SPAWNFLAG_NOT_EASY) != 0) ||
(Host.CurrentSkill == 1 && ((int)ent.v.spawnflags & SpawnFlags.SPAWNFLAG_NOT_MEDIUM) != 0) ||
(Host.CurrentSkill >= 2 && ((int)ent.v.spawnflags & SpawnFlags.SPAWNFLAG_NOT_HARD) != 0))
{
Server.FreeEdict(ent);
inhibit++;
continue;
}
//
// immediately call spawn function
//
if (ent.v.classname == 0)
{
Con.Print("No classname for:\n");
Print(ent);
Server.FreeEdict(ent);
continue;
}
// look for the spawn function
int func = IndexOfFunction(GetString(ent.v.classname));
if (func == -1)
{
Con.Print("No spawn function for:\n");
Print(ent);
Server.FreeEdict(ent);
continue;
}
Progs.GlobalStruct.self = Server.EdictToProg(ent);
Execute(func);
}
Con.DPrint("{0} entities inhibited\n", inhibit);
}
/// <summary>
/// SV_FlyMove
/// The basic solid body movement clip that slides along multiple planes
/// Returns the clipflags if the velocity was modified (hit something solid)
/// 1 = floor
/// 2 = wall / step
/// 4 = dead stop
/// If steptrace is not NULL, the trace of any vertical wall hit will be stored
/// </summary>
static int FlyMove(edict_t ent, float time, trace_t steptrace)
{
v3f original_velocity = ent.v.velocity;
v3f primal_velocity = ent.v.velocity;
int numbumps = 4;
int blocked = 0;
Vector3[] planes = new Vector3[MAX_CLIP_PLANES];
int numplanes = 0;
float time_left = time;
for (int bumpcount = 0; bumpcount < numbumps; bumpcount++)
{
if (ent.v.velocity.IsEmpty)
{
break;
}
v3f end;
Mathlib.VectorMA(ref ent.v.origin, time_left, ref ent.v.velocity, out end);
trace_t trace = Move(ref ent.v.origin, ref ent.v.mins, ref ent.v.maxs, ref end, 0, ent);
if (trace.allsolid)
{ // entity is trapped in another solid
ent.v.velocity = default(v3f);
return(3);
}
if (trace.fraction > 0)
{ // actually covered some distance
Mathlib.Copy(ref trace.endpos, out ent.v.origin);
original_velocity = ent.v.velocity;
numplanes = 0;
}
if (trace.fraction == 1)
{
break; // moved the entire distance
}
if (trace.ent == null)
{
Sys.Error("SV_FlyMove: !trace.ent");
}
if (trace.plane.normal.Z > 0.7)
{
blocked |= 1; // floor
if (trace.ent.v.solid == Solids.SOLID_BSP)
{
ent.v.flags = (int)ent.v.flags | EdictFlags.FL_ONGROUND;
ent.v.groundentity = EdictToProg(trace.ent);
}
}
if (trace.plane.normal.Z == 0)
{
blocked |= 2; // step
if (steptrace != null)
{
steptrace.CopyFrom(trace); // save for player extrafriction
}
}
//
// run the impact function
//
Impact(ent, trace.ent);
if (ent.free)
{
break; // removed by the impact function
}
time_left -= time_left * trace.fraction;
// cliped to another plane
if (numplanes >= MAX_CLIP_PLANES)
{
// this shouldn't really happen
ent.v.velocity = default(v3f);
return(3);
}
planes[numplanes] = trace.plane.normal;
numplanes++;
//
// modify original_velocity so it parallels all of the clip planes
//
v3f new_velocity = default(v3f);
int i, j;
for (i = 0; i < numplanes; i++)
{
ClipVelocity(ref original_velocity, ref planes[i], out new_velocity, 1);
for (j = 0; j < numplanes; j++)
{
if (j != i)
{
float dot = new_velocity.x * planes[j].X + new_velocity.y * planes[j].Y + new_velocity.z * planes[j].Z;
if (dot < 0)
{
break; // not ok
}
}
}
if (j == numplanes)
{
break;
}
}
if (i != numplanes)
{
// go along this plane
ent.v.velocity = new_velocity;
}
else
{
// go along the crease
if (numplanes != 2)
{
ent.v.velocity = default(v3f);
return(7);
}
Vector3 dir = Vector3.Cross(planes[0], planes[1]);
float d = dir.X * ent.v.velocity.x + dir.Y * ent.v.velocity.y + dir.Z * ent.v.velocity.z;
Mathlib.Copy(ref dir, out ent.v.velocity);
Mathlib.VectorScale(ref ent.v.velocity, d, out ent.v.velocity);
}
//
// if original velocity is against the original velocity, stop dead
// to avoid tiny occilations in sloping corners
//
if (Mathlib.DotProduct(ref ent.v.velocity, ref primal_velocity) <= 0)
{
ent.v.velocity = default(v3f);
return(blocked);
}
}
return(blocked);
}
/// <summary>
/// ED_ParseEdict
/// Parses an edict out of the given string, returning the new position
/// ed should be a properly initialized empty edict.
/// Used for initial level load and for savegames.
/// </summary>
public static string ParseEdict(string data, edict_t ent)
{
bool init = false;
// clear it
if (ent != Server.sv.edicts[0]) // hack
{
ent.Clear();
}
// go through all the dictionary pairs
bool anglehack;
while (true)
{
// parse key
data = Common.Parse(data);
if (Common.Token.StartsWith("}"))
{
break;
}
if (data == null)
{
Sys.Error("ED_ParseEntity: EOF without closing brace");
}
string token = Common.Token;
// anglehack is to allow QuakeEd to write single scalar angles
// and allow them to be turned into vectors. (FIXME...)
if (token == "angle")
{
token = "angles";
anglehack = true;
}
else
{
anglehack = false;
}
// FIXME: change light to _light to get rid of this hack
if (token == "light")
{
token = "light_lev"; // hack for single light def
}
string keyname = token.TrimEnd();
// parse value
data = Common.Parse(data);
if (data == null)
{
Sys.Error("ED_ParseEntity: EOF without closing brace");
}
if (Common.Token.StartsWith("}"))
{
Sys.Error("ED_ParseEntity: closing brace without data");
}
init = true;
// keynames with a leading underscore are used for utility comments,
// and are immediately discarded by quake
if (keyname[0] == '_')
{
continue;
}
ddef_t key = FindField(keyname);
if (key == null)
{
Con.Print("'{0}' is not a field\n", keyname);
continue;
}
token = Common.Token;
if (anglehack)
{
token = "0 " + token + " 0";
}
if (!ParsePair(ent, key, token))
{
Host.Error("ED_ParseEdict: parse error");
}
}
if (!init)
{
ent.free = true;
}
return(data);
}
/// <summary>
/// EDICT_TO_PROG(e)
/// </summary>
public static int EdictToProg(edict_t e)
{
return(Array.IndexOf(_Server.edicts, e)); // todo: optimize this
}
/// <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);
}
}
}