/// <summary>
/// Returns false if the player cannot be respawned at the given
/// mapthing spot because something is occupying it.
/// </summary>
public bool CheckSpot(int playernum, MapThing mthing)
{
var players = world.Options.Players;
if (players[playernum].Mobj == null)
{
// First spawn of level, before corpses.
for (var i = 0; i < playernum; i++)
{
if (players[i].Mobj.X == mthing.X && players[i].Mobj.Y == mthing.Y)
{
return(false);
}
}
return(true);
}
var x = mthing.X;
var y = mthing.Y;
if (!world.ThingMovement.CheckPosition(players[playernum].Mobj, x, y))
{
return(false);
}
// Flush an old corpse if needed.
if (bodyQueSlot >= bodyQueSize)
{
RemoveMobj(bodyQue[bodyQueSlot % bodyQueSize]);
}
bodyQue[bodyQueSlot % bodyQueSize] = players[playernum].Mobj;
bodyQueSlot++;
// Spawn a teleport fog.
var subsector = Geometry.PointInSubsector(x, y, world.Map);
var angle = (Angle.Ang45.Data >> Trig.AngleToFineShift) *
((int)Math.Round(mthing.Angle.ToDegree()) / 45);
//
// The code below to reproduce respawn fog bug in deathmath
// is based on Chocolate Doom's implementation.
//
Fixed xa;
Fixed ya;
switch (angle)
{
case 4096: // -4096:
xa = Trig.Tan(2048); // finecosine[-4096]
ya = Trig.Tan(0); // finesine[-4096]
break;
case 5120: // -3072:
xa = Trig.Tan(3072); // finecosine[-3072]
ya = Trig.Tan(1024); // finesine[-3072]
break;
case 6144: // -2048:
xa = Trig.Sin(0); // finecosine[-2048]
ya = Trig.Tan(2048); // finesine[-2048]
break;
case 7168: // -1024:
xa = Trig.Sin(1024); // finecosine[-1024]
ya = Trig.Tan(3072); // finesine[-1024]
break;
case 0:
case 1024:
case 2048:
case 3072:
xa = Trig.Cos((int)angle);
ya = Trig.Sin((int)angle);
break;
default:
throw new Exception("Unexpected angle: " + angle);
}
var mo = SpawnMobj(
x + 20 * xa, y + 20 * ya,
subsector.Sector.FloorHeight,
MobjType.Tfog);
if (!world.FirstTicIsNotYetDone)
{
// Don't start sound on first frame.
world.StartSound(mo, Sfx.TELEPT, SfxType.Misc);
}
return(true);
}
//
// G_CheckSpot
// Returns false if the player cannot be respawned
// at the given mapthing_t spot
// because something is occupying it
//
public bool G_CheckSpot(int playernum, MapThing mthing)
{
if (Players[playernum].Mobj == null)
{
// first spawn of level, before corpses
for (var i = 0; i < playernum; i++)
{
if (Players[i].Mobj.X == mthing.X && Players[i].Mobj.Y == mthing.Y)
{
return(false);
}
}
return(true);
}
var x = mthing.X;
var y = mthing.Y;
if (!thingMovement.CheckPosition(Players[playernum].Mobj, x, y))
{
return(false);
}
// flush an old corpse if needed
if (bodyqueslot >= BODYQUESIZE)
{
thingAllocation.RemoveMobj(bodyque[bodyqueslot % BODYQUESIZE]);
}
bodyque[bodyqueslot % BODYQUESIZE] = Players[playernum].Mobj;
bodyqueslot++;
// spawn a teleport fog
var ss = Geometry.PointInSubsector(x, y, map);
var an = (Angle.Ang45.Data >> Trig.AngleToFineShift) * ((int)Math.Round(mthing.Angle.ToDegree()) / 45);
Fixed xa;
Fixed ya;
switch (an)
{
case 4096: // -4096:
xa = Trig.Tan(2048); // finecosine[-4096]
ya = Trig.Tan(0); // finesine[-4096]
break;
case 5120: // -3072:
xa = Trig.Tan(3072); // finecosine[-3072]
ya = Trig.Tan(1024); // finesine[-3072]
break;
case 6144: // -2048:
xa = Trig.Sin(0); // finecosine[-2048]
ya = Trig.Tan(2048); // finesine[-2048]
break;
case 7168: // -1024:
xa = Trig.Sin(1024); // finecosine[-1024]
ya = Trig.Tan(3072); // finesine[-1024]
break;
case 0:
case 1024:
case 2048:
case 3072:
xa = Trig.Cos((int)an);
ya = Trig.Sin((int)an);
break;
default:
throw new Exception("G_CheckSpot: unexpected angle " + an);
}
var mo = thingAllocation.SpawnMobj(
x + 20 * xa, y + 20 * ya,
ss.Sector.FloorHeight,
MobjType.Tfog);
if (Players[Options.ConsolePlayer].ViewZ != new Fixed(1))
{
// don't start sound on first frame
StartSound(mo, Sfx.TELEPT);
}
return(true);
}