/// <summary>
/// Returns true if a straight line between the looker and target is unobstructed.
/// </summary>
public bool CheckSight(Mobj looker, Mobj target)
{
var map = this.world.Map;
// First check for trivial rejection.
// Check in REJECT table.
if (map.Reject.Check(looker.Subsector.Sector, target.Subsector.Sector))
{
// Can't possibly be connected.
return(false);
}
// An unobstructed LOS is possible.
// Now look from eyes of t1 to any part of t2.
this.sightZStart = looker.Z + looker.Height - (looker.Height >> 2);
this.topSlope = (target.Z + target.Height) - this.sightZStart;
this.bottomSlope = (target.Z) - this.sightZStart;
this.trace.X = looker.X;
this.trace.Y = looker.Y;
this.trace.Dx = target.X - looker.X;
this.trace.Dy = target.Y - looker.Y;
this.targetX = target.X;
this.targetY = target.Y;
// The head node is the last node output.
return(this.CrossBspNode(map.Nodes.Length - 1, this.world.GetNewValidCount()));
}
private bool StompThing(Mobj thing)
{
if ((thing.Flags & MobjFlags.Shootable) == 0)
{
return(true);
}
var blockDist = thing.Radius + this.currentThing.Radius;
var dx = Fixed.Abs(thing.X - this.currentX);
var dy = Fixed.Abs(thing.Y - this.currentY);
if (dx >= blockDist || dy >= blockDist)
{
// Didn't hit it.
return(true);
}
// Don't clip against self.
if (thing == this.currentThing)
{
return(true);
}
// Monsters don't stomp things except on boss level.
if (this.currentThing.Player == null && this.world.Options.Map != 30)
{
return(false);
}
this.world.ThingInteraction.DamageMobj(thing, this.currentThing, this.currentThing, 10000);
return(true);
}
public void BFGSpray(Mobj bfgBall)
{
var hs = this.world.Hitscan;
var random = this.world.Random;
// Offset angles from its attack angle.
for (var i = 0; i < 40; i++)
{
var an = bfgBall.Angle - Angle.Ang90 / 2 + Angle.Ang90 / 40 * (uint)i;
// bfgBall.Target is the originator (player) of the missile.
hs.AimLineAttack(bfgBall.Target, an, Fixed.FromInt(16 * 64));
if (hs.LineTarget == null)
{
continue;
}
this.world.ThingAllocation.SpawnMobj(hs.LineTarget.X, hs.LineTarget.Y, hs.LineTarget.Z + (hs.LineTarget.Height >> 2), MobjType.Extrabfg);
var damage = 0;
for (var j = 0; j < 15; j++)
{
damage += (random.Next() & 7) + 1;
}
this.world.ThingInteraction.DamageMobj(hs.LineTarget, bfgBall.Target, bfgBall.Target, damage);
}
}
private void StairStep(Mobj thing)
{
if (!this.TryMove(thing, thing.X, thing.Y + thing.MomY))
{
this.TryMove(thing, thing.X + thing.MomX, thing.Y);
}
}
/// <summary>
/// Find a target on the aiming line.
/// Sets LineTaget when a target is aimed at.
/// </summary>
public Fixed AimLineAttack(Mobj shooter, Angle angle, Fixed range)
{
this.currentShooter = shooter;
this.currentShooterZ = shooter.Z + (shooter.Height >> 1) + Fixed.FromInt(8);
this.currentRange = range;
var targetX = shooter.X + range.ToIntFloor() * Trig.Cos(angle);
var targetY = shooter.Y + range.ToIntFloor() * Trig.Sin(angle);
// Can't shoot outside view angles.
this.topSlope = Fixed.FromInt(100) / 160;
this.bottomSlope = Fixed.FromInt(-100) / 160;
this.lineTarget = null;
this.world.PathTraversal.PathTraverse(
shooter.X,
shooter.Y,
targetX,
targetY,
PathTraverseFlags.AddLines | PathTraverseFlags.AddThings,
this.aimTraverseFunc
);
if (this.lineTarget != null)
{
return(this.currentAimSlope);
}
return(Fixed.Zero);
}
/// <summary>
/// Remove the mobj from the level.
/// </summary>
public void RemoveMobj(Mobj mobj)
{
var tm = this.world.ThingMovement;
if ((mobj.Flags & MobjFlags.Special) != 0 && (mobj.Flags & MobjFlags.Dropped) == 0 && (mobj.Type != MobjType.Inv) && (mobj.Type != MobjType.Ins))
{
this.itemRespawnQue[this.itemQueHead] = mobj.SpawnPoint;
this.itemRespawnTime[this.itemQueHead] = this.world.LevelTime;
this.itemQueHead = (this.itemQueHead + 1) & (ThingAllocation.itemQueSize - 1);
// Lose one off the end?
if (this.itemQueHead == this.itemQueTail)
{
this.itemQueTail = (this.itemQueTail + 1) & (ThingAllocation.itemQueSize - 1);
}
}
// Unlink from sector and block lists.
tm.UnsetThingPosition(mobj);
// Stop any playing sound.
this.world.StopSound(mobj);
// Free block.
this.world.Thinkers.Remove(mobj);
}
public void Clear()
{
this.line = null;
this.position = 0;
this.texture = 0;
this.timer = 0;
this.soundOrigin = null;
}
public bool TeleportMove(Mobj thing, Fixed x, Fixed y)
{
// Kill anything occupying the position.
this.currentThing = thing;
this.currentFlags = thing.Flags;
this.currentX = x;
this.currentY = y;
this.currentBox[Box.Top] = y + this.currentThing.Radius;
this.currentBox[Box.Bottom] = y - this.currentThing.Radius;
this.currentBox[Box.Right] = x + this.currentThing.Radius;
this.currentBox[Box.Left] = x - this.currentThing.Radius;
var ss = Geometry.PointInSubsector(x, y, this.world.Map);
this.currentCeilingLine = null;
// The base floor / ceiling is from the subsector that contains the point.
// Any contacted lines the step closer together will adjust them.
this.currentFloorZ = this.currentDropoffZ = ss.Sector.FloorHeight;
this.currentCeilingZ = ss.Sector.CeilingHeight;
var validcount = this.world.GetNewValidCount();
this.crossedSpecialCount = 0;
// Stomp on any things contacted.
var bm = this.world.Map.BlockMap;
var blockX1 = bm.GetBlockX(this.currentBox[Box.Left] - GameConst.MaxThingRadius);
var blockX2 = bm.GetBlockX(this.currentBox[Box.Right] + GameConst.MaxThingRadius);
var blockY1 = bm.GetBlockY(this.currentBox[Box.Bottom] - GameConst.MaxThingRadius);
var blockY2 = bm.GetBlockY(this.currentBox[Box.Top] + GameConst.MaxThingRadius);
for (var bx = blockX1; bx <= blockX2; bx++)
{
for (var by = blockY1; by <= blockY2; by++)
{
if (!bm.IterateThings(bx, by, this.stompThingFunc))
{
return(false);
}
}
}
// the move is ok, so link the thing into its new position
this.UnsetThingPosition(thing);
thing.FloorZ = this.currentFloorZ;
thing.CeilingZ = this.currentCeilingZ;
thing.X = x;
thing.Y = y;
this.SetThingPosition(thing);
return(true);
}
private void RecursiveSound(Sector sec, int soundblocks, Mobj soundtarget, int validCount)
{
// Wake up all monsters in this sector.
if (sec.ValidCount == validCount && sec.SoundTraversed <= soundblocks + 1)
{
// Already flooded.
return;
}
sec.ValidCount = validCount;
sec.SoundTraversed = soundblocks + 1;
sec.SoundTarget = soundtarget;
var mc = this.world.MapCollision;
for (var i = 0; i < sec.Lines.Length; i++)
{
var check = sec.Lines[i];
if ((check.Flags & LineFlags.TwoSided) == 0)
{
continue;
}
mc.LineOpening(check);
if (mc.OpenRange <= Fixed.Zero)
{
// Closed door.
continue;
}
Sector other;
if (check.FrontSide.Sector == sec)
{
other = check.BackSide.Sector;
}
else
{
other = check.FrontSide.Sector;
}
if ((check.Flags & LineFlags.SoundBlock) != 0)
{
if (soundblocks == 0)
{
this.RecursiveSound(other, 1, soundtarget, validCount);
}
}
else
{
this.RecursiveSound(other, soundblocks, soundtarget, validCount);
}
}
}
/// <summary>
/// Looks for things that intercept the given trace.
/// </summary>
private bool AddThingIntercepts(Mobj thing)
{
var tracePositive = (this.trace.Dx.Data ^ this.trace.Dy.Data) > 0;
Fixed x1;
Fixed y1;
Fixed x2;
Fixed y2;
// Check a corner to corner crossection for hit.
if (tracePositive)
{
x1 = thing.X - thing.Radius;
y1 = thing.Y + thing.Radius;
x2 = thing.X + thing.Radius;
y2 = thing.Y - thing.Radius;
}
else
{
x1 = thing.X - thing.Radius;
y1 = thing.Y - thing.Radius;
x2 = thing.X + thing.Radius;
y2 = thing.Y + thing.Radius;
}
var s1 = Geometry.PointOnDivLineSide(x1, y1, this.trace);
var s2 = Geometry.PointOnDivLineSide(x2, y2, this.trace);
if (s1 == s2)
{
// Line isn't crossed.
return(true);
}
this.target.X = x1;
this.target.Y = y1;
this.target.Dx = x2 - x1;
this.target.Dy = y2 - y1;
var frac = this.InterceptVector(this.trace, this.target);
if (frac < Fixed.Zero)
{
// Behind source.
return(true);
}
this.intercepts[this.interceptCount].Make(frac, thing);
this.interceptCount++;
// Keep going.
return(true);
}
////////////////////////////////////////////////////////////
// Thing spawn functions for the middle of a game
////////////////////////////////////////////////////////////
/// <summary>
/// Spawn a mobj at the given position as the given type.
/// </summary>
public Mobj SpawnMobj(Fixed x, Fixed y, Fixed z, MobjType type)
{
var mobj = new Mobj(this.world);
var info = DoomInfo.MobjInfos[(int)type];
mobj.Type = type;
mobj.Info = info;
mobj.X = x;
mobj.Y = y;
mobj.Radius = info.Radius;
mobj.Height = info.Height;
mobj.Flags = info.Flags;
mobj.Health = info.SpawnHealth;
if (this.world.Options.Skill != GameSkill.Nightmare)
{
mobj.ReactionTime = info.ReactionTime;
}
mobj.LastLook = this.world.Random.Next() % Player.MaxPlayerCount;
// Do not set the state with P_SetMobjState,
// because action routines can not be called yet.
var st = DoomInfo.States[(int)info.SpawnState];
mobj.State = st;
mobj.Tics = st.Tics;
mobj.Sprite = st.Sprite;
mobj.Frame = st.Frame;
// Set subsector and/or block links.
this.world.ThingMovement.SetThingPosition(mobj);
mobj.FloorZ = mobj.Subsector.Sector.FloorHeight;
mobj.CeilingZ = mobj.Subsector.Sector.CeilingHeight;
if (z == Mobj.OnFloorZ)
{
mobj.Z = mobj.FloorZ;
}
else if (z == Mobj.OnCeilingZ)
{
mobj.Z = mobj.CeilingZ - mobj.Info.Height;
}
else
{
mobj.Z = z;
}
this.world.Thinkers.Add(mobj);
return(mobj);
}
////////////////////////////////////////////////////////////
// Line shoot
////////////////////////////////////////////////////////////
/// <summary>
/// Called when a thing shoots a special line.
/// </summary>
public void ShootSpecialLine(Mobj thing, LineDef line)
{
bool ok;
// Impacts that other things can activate.
if (thing.Player == null)
{
ok = false;
switch ((int)line.Special)
{
case 46:
// Open door impact.
ok = true;
break;
}
if (!ok)
{
return;
}
}
var sa = this.world.SectorAction;
var specials = this.world.Specials;
switch ((int)line.Special)
{
case 24:
// Raise floor.
sa.DoFloor(line, FloorMoveType.RaiseFloor);
specials.ChangeSwitchTexture(line, false);
break;
case 46:
// Open door.
sa.DoDoor(line, VerticalDoorType.Open);
specials.ChangeSwitchTexture(line, true);
break;
case 47:
// Raise floor near and change.
sa.DoPlatform(line, PlatformType.RaiseToNearestAndChange, 0);
specials.ChangeSwitchTexture(line, false);
break;
}
}
/// <summary>
/// Links a thing into both a block and a subsector based on
/// its x and y. Sets thing.Subsector properly.
/// </summary>
public void SetThingPosition(Mobj thing)
{
var map = this.world.Map;
var subsector = Geometry.PointInSubsector(thing.X, thing.Y, map);
thing.Subsector = subsector;
// Invisible things don't go into the sector links.
if ((thing.Flags & MobjFlags.NoSector) == 0)
{
var sector = subsector.Sector;
thing.SectorPrev = null;
thing.SectorNext = sector.ThingList;
if (sector.ThingList != null)
{
sector.ThingList.SectorPrev = thing;
}
sector.ThingList = thing;
}
// Inert things don't need to be in blockmap.
if ((thing.Flags & MobjFlags.NoBlockMap) == 0)
{
var index = map.BlockMap.GetIndex(thing.X, thing.Y);
if (index != -1)
{
var link = map.BlockMap.ThingLists[index];
thing.BlockPrev = null;
thing.BlockNext = link;
if (link != null)
{
link.BlockPrev = thing;
}
map.BlockMap.ThingLists[index] = thing;
}
else
{
// Thing is off the map.
thing.BlockNext = null;
thing.BlockPrev = null;
}
}
}
/// <summary>
/// Looks for special lines in front of the player to activate.
/// </summary>
public void UseLines(Player player)
{
var pt = this.world.PathTraversal;
this.useThing = player.Mobj;
var angle = player.Mobj.Angle;
var x1 = player.Mobj.X;
var y1 = player.Mobj.Y;
var x2 = x1 + MapInteraction.useRange.ToIntFloor() * Trig.Cos(angle);
var y2 = y1 + MapInteraction.useRange.ToIntFloor() * Trig.Sin(angle);
pt.PathTraverse(x1, y1, x2, y2, PathTraverseFlags.AddLines, this.useTraverseFunc);
}
/// <summary>
/// Unlinks a thing from block map and sectors.
/// On each position change, BLOCKMAP and other lookups
/// maintaining lists ot things inside these structures
/// need to be updated.
/// </summary>
public void UnsetThingPosition(Mobj thing)
{
var map = this.world.Map;
// Invisible things don't go into the sector links.
if ((thing.Flags & MobjFlags.NoSector) == 0)
{
// Unlink from subsector.
if (thing.SectorNext != null)
{
thing.SectorNext.SectorPrev = thing.SectorPrev;
}
if (thing.SectorPrev != null)
{
thing.SectorPrev.SectorNext = thing.SectorNext;
}
else
{
thing.Subsector.Sector.ThingList = thing.SectorNext;
}
}
// Inert things don't need to be in blockmap.
if ((thing.Flags & MobjFlags.NoBlockMap) == 0)
{
// Unlink from block map.
if (thing.BlockNext != null)
{
thing.BlockNext.BlockPrev = thing.BlockPrev;
}
if (thing.BlockPrev != null)
{
thing.BlockPrev.BlockNext = thing.BlockNext;
}
else
{
var index = map.BlockMap.GetIndex(thing.X, thing.Y);
if (index != -1)
{
map.BlockMap.ThingLists[index] = thing.BlockNext;
}
}
}
}
////////////////////////////////////////////////////////////
// Miscellaneous
////////////////////////////////////////////////////////////
/// <summary>
/// Play the player's death sound.
/// </summary>
public void PlayerScream(Mobj player)
{
// Default death sound.
var sound = Sfx.PLDETH;
if ((DoomApplication.Instance.IWad == "doom2" ||
DoomApplication.Instance.IWad == "freedoom2" ||
DoomApplication.Instance.IWad == "plutonia" ||
DoomApplication.Instance.IWad == "tnt") &&
(player.Health < -50))
{
// If the player dies less than -50% without gibbing.
sound = Sfx.PDIEHI;
}
this.world.StartSound(player, sound, SfxType.Voice);
}
/// <summary>
/// Shoot a missile from the source.
/// For players.
/// </summary>
public void SpawnPlayerMissile(Mobj source, MobjType type)
{
var hs = this.world.Hitscan;
// See which target is to be aimed at.
var angle = source.Angle;
var slope = hs.AimLineAttack(source, angle, Fixed.FromInt(16 * 64));
if (hs.LineTarget == null)
{
angle += new Angle(1 << 26);
slope = hs.AimLineAttack(source, angle, Fixed.FromInt(16 * 64));
if (hs.LineTarget == null)
{
angle -= new Angle(2 << 26);
slope = hs.AimLineAttack(source, angle, Fixed.FromInt(16 * 64));
}
if (hs.LineTarget == null)
{
angle = source.Angle;
slope = Fixed.Zero;
}
}
var x = source.X;
var y = source.Y;
var z = source.Z + Fixed.FromInt(32);
var missile = this.SpawnMobj(x, y, z, type);
if (missile.Info.SeeSound != 0)
{
this.world.StartSound(missile, missile.Info.SeeSound, SfxType.Misc);
}
missile.Target = source;
missile.Angle = angle;
missile.MomX = new Fixed(missile.Info.Speed) * Trig.Cos(angle);
missile.MomY = new Fixed(missile.Info.Speed) * Trig.Sin(angle);
missile.MomZ = new Fixed(missile.Info.Speed) * slope;
this.CheckMissileSpawn(missile);
}
/// <summary>
/// Shoot a missile from the source to the destination.
/// For monsters.
/// </summary>
public Mobj SpawnMissile(Mobj source, Mobj dest, MobjType type)
{
var missile = this.SpawnMobj(source.X, source.Y, source.Z + Fixed.FromInt(32), type);
if (missile.Info.SeeSound != 0)
{
this.world.StartSound(missile, missile.Info.SeeSound, SfxType.Misc);
}
// Where it came from?
missile.Target = source;
var angle = Geometry.PointToAngle(source.X, source.Y, dest.X, dest.Y);
// Fuzzy player.
if ((dest.Flags & MobjFlags.Shadow) != 0)
{
var random = this.world.Random;
angle += new Angle((random.Next() - random.Next()) << 20);
}
var speed = this.GetMissileSpeed(missile.Type);
missile.Angle = angle;
missile.MomX = new Fixed(speed) * Trig.Cos(angle);
missile.MomY = new Fixed(speed) * Trig.Sin(angle);
var dist = Geometry.AproxDistance(dest.X - source.X, dest.Y - source.Y);
var num = (dest.Z - source.Z).Data;
var den = (dist / speed).Data;
if (den < 1)
{
den = 1;
}
missile.MomZ = new Fixed(num / den);
this.CheckMissileSpawn(missile);
return(missile);
}
/// <summary>
/// Moves the missile forward a bit and possibly explodes it right there.
/// </summary>
private void CheckMissileSpawn(Mobj missile)
{
missile.Tics -= this.world.Random.Next() & 3;
if (missile.Tics < 1)
{
missile.Tics = 1;
}
// Move a little forward so an angle can be computed if it immediately explodes.
missile.X += (missile.MomX >> 1);
missile.Y += (missile.MomY >> 1);
missile.Z += (missile.MomZ >> 1);
if (!this.world.ThingMovement.TryMove(missile, missile.X, missile.Y))
{
this.world.ThingInteraction.ExplodeMissile(missile);
}
}
/// <summary>
/// Called when the missile hits something (wall or thing).
/// </summary>
public void ExplodeMissile(Mobj thing)
{
thing.MomX = thing.MomY = thing.MomZ = Fixed.Zero;
thing.SetState(DoomInfo.MobjInfos[(int)thing.Type].DeathState);
thing.Tics -= this.world.Random.Next() & 3;
if (thing.Tics < 1)
{
thing.Tics = 1;
}
thing.Flags &= ~MobjFlags.Missile;
if (thing.Info.DeathSound != 0)
{
this.world.StartSound(thing, thing.Info.DeathSound, SfxType.Misc);
}
}
/// <summary>
/// Fire a hitscan bullet.
/// If damage == 0, it is just a test trace that will leave linetarget set.
/// </summary>
public void LineAttack(Mobj shooter, Angle angle, Fixed range, Fixed slope, int damage)
{
this.currentShooter = shooter;
this.currentShooterZ = shooter.Z + (shooter.Height >> 1) + Fixed.FromInt(8);
this.currentRange = range;
this.currentAimSlope = slope;
this.currentDamage = damage;
var targetX = shooter.X + range.ToIntFloor() * Trig.Cos(angle);
var targetY = shooter.Y + range.ToIntFloor() * Trig.Sin(angle);
this.world.PathTraversal.PathTraverse(
shooter.X,
shooter.Y,
targetX,
targetY,
PathTraverseFlags.AddLines | PathTraverseFlags.AddThings,
this.shootTraverseFunc
);
}
/// <summary>
/// "bombSource" is the creature that caused the explosion at "bombSpot".
/// </summary>
private bool DoRadiusAttack(Mobj thing)
{
if ((thing.Flags & MobjFlags.Shootable) == 0)
{
return(true);
}
// Boss spider and cyborg take no damage from concussion.
if (thing.Type == MobjType.Cyborg || thing.Type == MobjType.Spider)
{
return(true);
}
var dx = Fixed.Abs(thing.X - this.bombSpot.X);
var dy = Fixed.Abs(thing.Y - this.bombSpot.Y);
var dist = dx > dy ? dx : dy;
dist = new Fixed((dist - thing.Radius).Data >> Fixed.FracBits);
if (dist < Fixed.Zero)
{
dist = Fixed.Zero;
}
if (dist.Data >= this.bombDamage)
{
// Out of range.
return(true);
}
if (this.world.VisibilityCheck.CheckSight(thing, this.bombSpot))
{
// Must be in direct path.
this.DamageMobj(thing, this.bombSpot, this.bombSource, this.bombDamage - dist.Data);
}
return(true);
}
/// <summary>
/// Source is the creature that caused the explosion at spot.
/// </summary>
public void RadiusAttack(Mobj spot, Mobj source, int damage)
{
var bm = this.world.Map.BlockMap;
var dist = Fixed.FromInt(damage + GameConst.MaxThingRadius.Data);
var blockY1 = bm.GetBlockY(spot.Y - dist);
var blockY2 = bm.GetBlockY(spot.Y + dist);
var blockX1 = bm.GetBlockX(spot.X - dist);
var blockX2 = bm.GetBlockX(spot.X + dist);
this.bombSpot = spot;
this.bombSource = source;
this.bombDamage = damage;
for (var by = blockY1; by <= blockY2; by++)
{
for (var bx = blockX1; bx <= blockX2; bx++)
{
bm.IterateThings(bx, by, this.radiusAttackFunc);
}
}
}
/// <summary>
/// Find a thing or wall which is on the aiming line.
/// Sets lineTaget and aimSlope when a target is aimed at.
/// </summary>
private bool AimTraverse(Intercept intercept)
{
if (intercept.Line != null)
{
var line = intercept.Line;
if ((line.Flags & LineFlags.TwoSided) == 0)
{
// Stop.
return(false);
}
var mc = this.world.MapCollision;
// Crosses a two sided line.
// A two sided line will restrict the possible target ranges.
mc.LineOpening(line);
if (mc.OpenBottom >= mc.OpenTop)
{
// Stop.
return(false);
}
var dist = this.currentRange * intercept.Frac;
if (line.FrontSector.FloorHeight != line.BackSector.FloorHeight)
{
var slope = (mc.OpenBottom - this.currentShooterZ) / dist;
if (slope > this.bottomSlope)
{
this.bottomSlope = slope;
}
}
if (line.FrontSector.CeilingHeight != line.BackSector.CeilingHeight)
{
var slope = (mc.OpenTop - this.currentShooterZ) / dist;
if (slope < this.topSlope)
{
this.topSlope = slope;
}
}
if (this.topSlope <= this.bottomSlope)
{
// Stop.
return(false);
}
// Shot continues.
return(true);
}
// Shoot a thing.
var thing = intercept.Thing;
if (thing == this.currentShooter)
{
// Can't shoot self.
return(true);
}
{
if ((thing.Flags & MobjFlags.Shootable) == 0)
{
// Corpse or something.
return(true);
}
// Check angles to see if the thing can be aimed at.
var dist = this.currentRange * intercept.Frac;
var thingTopSlope = (thing.Z + thing.Height - this.currentShooterZ) / dist;
if (thingTopSlope < this.bottomSlope)
{
// Shot over the thing.
return(true);
}
var thingBottomSlope = (thing.Z - this.currentShooterZ) / dist;
if (thingBottomSlope > this.topSlope)
{
// Shot under the thing.
return(true);
}
// This thing can be hit!
if (thingTopSlope > this.topSlope)
{
thingTopSlope = this.topSlope;
}
if (thingBottomSlope < this.bottomSlope)
{
thingBottomSlope = this.bottomSlope;
}
this.currentAimSlope = (thingTopSlope + thingBottomSlope) / 2;
this.lineTarget = thing;
// Don't go any farther.
return(false);
}
}
public void StopSound(Mobj mobj)
{
this.options.Sound.StopSound(mobj);
}
private void NoiseAlert(Mobj target, Mobj emmiter)
{
this.RecursiveSound(emmiter.Subsector.Sector, 0, target, this.world.GetNewValidCount());
}
/// <summary>
/// Called when a thing uses a special line.
/// Only the front sides of lines are usable.
/// </summary>
public bool UseSpecialLine(Mobj thing, LineDef line, int side)
{
var specials = this.world.Specials;
var sa = this.world.SectorAction;
// Err...
// Use the back sides of VERY SPECIAL lines...
if (side != 0)
{
switch ((int)line.Special)
{
case 124:
// Sliding door open and close (unused).
break;
default:
return(false);
}
}
// Switches that other things can activate.
if (thing.Player == null)
{
// Never open secret doors.
if ((line.Flags & LineFlags.Secret) != 0)
{
return(false);
}
switch ((int)line.Special)
{
case 1: // Manual door raise.
case 32: // Manual blue.
case 33: // Manual red.
case 34: // Manual yellow.
break;
default:
return(false);
}
}
// Do something.
switch ((int)line.Special)
{
// MANUALS
case 1: // Vertical door.
case 26: // Blue door (locked).
case 27: // Yellow door (locked).
case 28: // Red door (locked).
case 31: // Manual door open.
case 32: // Blue locked door open.
case 33: // Red locked door open.
case 34: // Yellow locked door open.
case 117: // Blazing door raise.
case 118: // Blazing door open.
sa.DoLocalDoor(line, thing);
break;
// SWITCHES
case 7:
// Build stairs.
if (sa.BuildStairs(line, StairType.Build8))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 9:
// Change donut.
if (sa.DoDonut(line))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 11:
// Exit level.
specials.ChangeSwitchTexture(line, false);
this.world.ExitLevel();
break;
case 14:
// Raise floor 32 and change texture.
if (sa.DoPlatform(line, PlatformType.RaiseAndChange, 32))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 15:
// Raise floor 24 and change texture.
if (sa.DoPlatform(line, PlatformType.RaiseAndChange, 24))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 18:
// Raise floor to next highest floor.
if (sa.DoFloor(line, FloorMoveType.RaiseFloorToNearest))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 20:
// Raise platform next highest floor and change texture.
if (sa.DoPlatform(line, PlatformType.RaiseToNearestAndChange, 0))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 21:
// Platform down, wait, up and stay.
if (sa.DoPlatform(line, PlatformType.DownWaitUpStay, 0))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 23:
// Lower floor to Lowest.
if (sa.DoFloor(line, FloorMoveType.LowerFloorToLowest))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 29:
// Raise door.
if (sa.DoDoor(line, VerticalDoorType.Normal))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 41:
// Lower ceiling to floor.
if (sa.DoCeiling(line, CeilingMoveType.LowerToFloor))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 71:
// Turbo lower floor.
if (sa.DoFloor(line, FloorMoveType.TurboLower))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 49:
// Ceiling crush and raise.
if (sa.DoCeiling(line, CeilingMoveType.CrushAndRaise))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 50:
// Close door.
if (sa.DoDoor(line, VerticalDoorType.Close))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 51:
// Secret exit.
specials.ChangeSwitchTexture(line, false);
this.world.SecretExitLevel();
break;
case 55:
// Raise floor crush.
if (sa.DoFloor(line, FloorMoveType.RaiseFloorCrush))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 101:
// Raise floor.
if (sa.DoFloor(line, FloorMoveType.RaiseFloor))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 102:
// Lower floor to surrounding floor height.
if (sa.DoFloor(line, FloorMoveType.LowerFloor))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 103:
// Open door.
if (sa.DoDoor(line, VerticalDoorType.Open))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 111:
// Blazing door raise (faster than turbo).
if (sa.DoDoor(line, VerticalDoorType.BlazeRaise))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 112:
// Blazing door open (faster than turbo).
if (sa.DoDoor(line, VerticalDoorType.BlazeOpen))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 113:
// Blazing door close (faster than turbo).
if (sa.DoDoor(line, VerticalDoorType.BlazeClose))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 122:
// Blazing platform down, wait, up and stay.
if (sa.DoPlatform(line, PlatformType.BlazeDwus, 0))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 127:
// Build stairs turbo 16.
if (sa.BuildStairs(line, StairType.Turbo16))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 131:
// Raise floor turbo.
if (sa.DoFloor(line, FloorMoveType.RaiseFloorTurbo))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 133:
// Blazing open door (blue).
case 135:
// Blazing open door (red).
case 137:
// Blazing open door (yellow).
if (sa.DoLockedDoor(line, VerticalDoorType.BlazeOpen, thing))
{
specials.ChangeSwitchTexture(line, false);
}
break;
case 140:
// Raise floor 512.
if (sa.DoFloor(line, FloorMoveType.RaiseFloor512))
{
specials.ChangeSwitchTexture(line, false);
}
break;
// BUTTONS
case 42:
// Close door.
if (sa.DoDoor(line, VerticalDoorType.Close))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 43:
// Lower ceiling to floor.
if (sa.DoCeiling(line, CeilingMoveType.LowerToFloor))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 45:
// lower floor to surrounding floor height.
if (sa.DoFloor(line, FloorMoveType.LowerFloor))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 60:
// Lower floor to Lowest.
if (sa.DoFloor(line, FloorMoveType.LowerFloorToLowest))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 61:
// Open door.
if (sa.DoDoor(line, VerticalDoorType.Open))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 62:
// Platform down, wait, up and stay.
if (sa.DoPlatform(line, PlatformType.DownWaitUpStay, 1))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 63:
// Raise door.
if (sa.DoDoor(line, VerticalDoorType.Normal))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 64:
// Raise floor to ceiling.
if (sa.DoFloor(line, FloorMoveType.RaiseFloor))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 66:
// Raise floor 24 and change texture.
if (sa.DoPlatform(line, PlatformType.RaiseAndChange, 24))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 67:
// Raise floor 32 and change texture.
if (sa.DoPlatform(line, PlatformType.RaiseAndChange, 32))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 65:
// Raise floor crush.
if (sa.DoFloor(line, FloorMoveType.RaiseFloorCrush))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 68:
// Raise platform to next highest floor and change texture.
if (sa.DoPlatform(line, PlatformType.RaiseToNearestAndChange, 0))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 69:
// Raise floor to next highest floor.
if (sa.DoFloor(line, FloorMoveType.RaiseFloorToNearest))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 70:
// Turbo lower floor.
if (sa.DoFloor(line, FloorMoveType.TurboLower))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 114:
// Blazing door raise (faster than turbo).
if (sa.DoDoor(line, VerticalDoorType.BlazeRaise))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 115:
// Blazing door open (faster than turbo).
if (sa.DoDoor(line, VerticalDoorType.BlazeOpen))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 116:
// Blazing door close (faster than turbo).
if (sa.DoDoor(line, VerticalDoorType.BlazeClose))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 123:
// Blazing platform down, wait, up and stay.
if (sa.DoPlatform(line, PlatformType.BlazeDwus, 0))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 132:
// Raise floor turbo.
if (sa.DoFloor(line, FloorMoveType.RaiseFloorTurbo))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 99:
// Blazing open door (blue).
case 134:
// Blazing open door (red).
case 136:
// Blazing open door (yellow).
if (sa.DoLockedDoor(line, VerticalDoorType.BlazeOpen, thing))
{
specials.ChangeSwitchTexture(line, true);
}
break;
case 138:
// Light turn on.
sa.LightTurnOn(line, 255);
specials.ChangeSwitchTexture(line, true);
break;
case 139:
// Light turn Off.
sa.LightTurnOn(line, 35);
specials.ChangeSwitchTexture(line, true);
break;
}
return(true);
}
////////////////////////////////////////////////////////////
// Line crossing
////////////////////////////////////////////////////////////
/// <summary>
/// Called every time a thing origin is about to cross a line
/// with a non zero special.
/// </summary>
public void CrossSpecialLine(LineDef line, int side, Mobj thing)
{
// Triggers that other things can activate.
if (thing.Player == null)
{
// Things that should NOT trigger specials...
switch (thing.Type)
{
case MobjType.Rocket:
case MobjType.Plasma:
case MobjType.Bfg:
case MobjType.Troopshot:
case MobjType.Headshot:
case MobjType.Bruisershot:
return;
default:
break;
}
var ok = false;
switch ((int)line.Special)
{
case 39: // TELEPORT TRIGGER
case 97: // TELEPORT RETRIGGER
case 125: // TELEPORT MONSTERONLY TRIGGER
case 126: // TELEPORT MONSTERONLY RETRIGGER
case 4: // RAISE DOOR
case 10: // PLAT DOWN-WAIT-UP-STAY TRIGGER
case 88: // PLAT DOWN-WAIT-UP-STAY RETRIGGER
ok = true;
break;
}
if (!ok)
{
return;
}
}
var sa = this.world.SectorAction;
// Note: could use some const's here.
switch ((int)line.Special)
{
// TRIGGERS.
// All from here to RETRIGGERS.
case 2:
// Open door.
sa.DoDoor(line, VerticalDoorType.Open);
line.Special = 0;
break;
case 3:
// Close door.
sa.DoDoor(line, VerticalDoorType.Close);
line.Special = 0;
break;
case 4:
// Raise door.
sa.DoDoor(line, VerticalDoorType.Normal);
line.Special = 0;
break;
case 5:
// Raise floor.
sa.DoFloor(line, FloorMoveType.RaiseFloor);
line.Special = 0;
break;
case 6:
// Fast ceiling crush and raise.
sa.DoCeiling(line, CeilingMoveType.FastCrushAndRaise);
line.Special = 0;
break;
case 8:
// Build stairs.
sa.BuildStairs(line, StairType.Build8);
line.Special = 0;
break;
case 10:
// Platform down, wait, up and stay.
sa.DoPlatform(line, PlatformType.DownWaitUpStay, 0);
line.Special = 0;
break;
case 12:
// Light turn on - brightest near.
sa.LightTurnOn(line, 0);
line.Special = 0;
break;
case 13:
// Light turn on 255.
sa.LightTurnOn(line, 255);
line.Special = 0;
break;
case 16:
// Close door 30.
sa.DoDoor(line, VerticalDoorType.Close30ThenOpen);
line.Special = 0;
break;
case 17:
// Start light strobing.
sa.StartLightStrobing(line);
line.Special = 0;
break;
case 19:
// Lower floor.
sa.DoFloor(line, FloorMoveType.LowerFloor);
line.Special = 0;
break;
case 22:
// Raise floor to nearest height and change texture.
sa.DoPlatform(line, PlatformType.RaiseToNearestAndChange, 0);
line.Special = 0;
break;
case 25:
// Ceiling crush and raise.
sa.DoCeiling(line, CeilingMoveType.CrushAndRaise);
line.Special = 0;
break;
case 30:
// Raise floor to shortest texture height on either side of lines.
sa.DoFloor(line, FloorMoveType.RaiseToTexture);
line.Special = 0;
break;
case 35:
// Lights very dark.
sa.LightTurnOn(line, 35);
line.Special = 0;
break;
case 36:
// Lower floor (turbo).
sa.DoFloor(line, FloorMoveType.TurboLower);
line.Special = 0;
break;
case 37:
// Lower and change.
sa.DoFloor(line, FloorMoveType.LowerAndChange);
line.Special = 0;
break;
case 38:
// Lower floor to lowest.
sa.DoFloor(line, FloorMoveType.LowerFloorToLowest);
line.Special = 0;
break;
case 39:
// Do teleport.
sa.Teleport(line, side, thing);
line.Special = 0;
break;
case 40:
// Raise ceiling and lower floor.
sa.DoCeiling(line, CeilingMoveType.RaiseToHighest);
sa.DoFloor(line, FloorMoveType.LowerFloorToLowest);
line.Special = 0;
break;
case 44:
// Ceiling crush.
sa.DoCeiling(line, CeilingMoveType.LowerAndCrush);
line.Special = 0;
break;
case 52:
// Do exit.
this.world.ExitLevel();
break;
case 53:
// Perpetual platform raise.
sa.DoPlatform(line, PlatformType.PerpetualRaise, 0);
line.Special = 0;
break;
case 54:
// Platform stop.
sa.StopPlatform(line);
line.Special = 0;
break;
case 56:
// Raise floor crush.
sa.DoFloor(line, FloorMoveType.RaiseFloorCrush);
line.Special = 0;
break;
case 57:
// Ceiling crush stop.
sa.CeilingCrushStop(line);
line.Special = 0;
break;
case 58:
// Raise floor 24.
sa.DoFloor(line, FloorMoveType.RaiseFloor24);
line.Special = 0;
break;
case 59:
// Raise floor 24 and change.
sa.DoFloor(line, FloorMoveType.RaiseFloor24AndChange);
line.Special = 0;
break;
case 104:
// Turn lights off in sector (tag).
sa.TurnTagLightsOff(line);
line.Special = 0;
break;
case 108:
// Blazing door raise (faster than turbo).
sa.DoDoor(line, VerticalDoorType.BlazeRaise);
line.Special = 0;
break;
case 109:
// Blazing door open (faster than turbo).
sa.DoDoor(line, VerticalDoorType.BlazeOpen);
line.Special = 0;
break;
case 100:
// Build stairs turbo 16.
sa.BuildStairs(line, StairType.Turbo16);
line.Special = 0;
break;
case 110:
// Blazing door close (faster than turbo).
sa.DoDoor(line, VerticalDoorType.BlazeClose);
line.Special = 0;
break;
case 119:
// Raise floor to nearest surrounding floor.
sa.DoFloor(line, FloorMoveType.RaiseFloorToNearest);
line.Special = 0;
break;
case 121:
// Blazing platform down, wait, up and stay.
sa.DoPlatform(line, PlatformType.BlazeDwus, 0);
line.Special = 0;
break;
case 124:
// Secret exit.
this.world.SecretExitLevel();
break;
case 125:
// Teleport monster only.
if (thing.Player == null)
{
sa.Teleport(line, side, thing);
line.Special = 0;
}
break;
case 130:
// Raise floor turbo.
sa.DoFloor(line, FloorMoveType.RaiseFloorTurbo);
line.Special = 0;
break;
case 141:
// Silent ceiling crush and raise.
sa.DoCeiling(line, CeilingMoveType.SilentCrushAndRaise);
line.Special = 0;
break;
// RETRIGGERS. All from here till end.
case 72:
// Ceiling crush.
sa.DoCeiling(line, CeilingMoveType.LowerAndCrush);
break;
case 73:
// Ceiling crush and raise.
sa.DoCeiling(line, CeilingMoveType.CrushAndRaise);
break;
case 74:
// Ceiling crush stop.
sa.CeilingCrushStop(line);
break;
case 75:
// Close door.
sa.DoDoor(line, VerticalDoorType.Close);
break;
case 76:
// Close door 30.
sa.DoDoor(line, VerticalDoorType.Close30ThenOpen);
break;
case 77:
// Fast ceiling crush and raise.
sa.DoCeiling(line, CeilingMoveType.FastCrushAndRaise);
break;
case 79:
// Lights very dark.
sa.LightTurnOn(line, 35);
break;
case 80:
// Light turn on - brightest near.
sa.LightTurnOn(line, 0);
break;
case 81:
// Light turn on 255.
sa.LightTurnOn(line, 255);
break;
case 82:
// Lower floor to lowest.
sa.DoFloor(line, FloorMoveType.LowerFloorToLowest);
break;
case 83:
// Lower floor.
sa.DoFloor(line, FloorMoveType.LowerFloor);
break;
case 84:
// Lower and change.
sa.DoFloor(line, FloorMoveType.LowerAndChange);
break;
case 86:
// Open door.
sa.DoDoor(line, VerticalDoorType.Open);
break;
case 87:
// Perpetual platform raise.
sa.DoPlatform(line, PlatformType.PerpetualRaise, 0);
break;
case 88:
// Platform down, wait, up and stay.
sa.DoPlatform(line, PlatformType.DownWaitUpStay, 0);
break;
case 89:
// Platform stop.
sa.StopPlatform(line);
break;
case 90:
// Raise door.
sa.DoDoor(line, VerticalDoorType.Normal);
break;
case 91:
// Raise floor.
sa.DoFloor(line, FloorMoveType.RaiseFloor);
break;
case 92:
// Raise floor 24.
sa.DoFloor(line, FloorMoveType.RaiseFloor24);
break;
case 93:
// Raise floor 24 and change.
sa.DoFloor(line, FloorMoveType.RaiseFloor24AndChange);
break;
case 94:
// Raise Floor Crush
sa.DoFloor(line, FloorMoveType.RaiseFloorCrush);
break;
case 95:
// Raise floor to nearest height and change texture.
sa.DoPlatform(line, PlatformType.RaiseToNearestAndChange, 0);
break;
case 96:
// Raise floor to shortest texture height on either side of lines.
sa.DoFloor(line, FloorMoveType.RaiseToTexture);
break;
case 97:
// Do Teleport.
sa.Teleport(line, side, thing);
break;
case 98:
// Lower floor (turbo).
sa.DoFloor(line, FloorMoveType.TurboLower);
break;
case 105:
// Blazing door raise (faster than turbo).
sa.DoDoor(line, VerticalDoorType.BlazeRaise);
break;
case 106:
// Blazing door open (faster than turbo).
sa.DoDoor(line, VerticalDoorType.BlazeOpen);
break;
case 107:
// Blazing door close (faster than turbo).
sa.DoDoor(line, VerticalDoorType.BlazeClose);
break;
case 120:
// Blazing platform down, wait, up and stay.
sa.DoPlatform(line, PlatformType.BlazeDwus, 0);
break;
case 126:
// Teleport monster only.
if (thing.Player == null)
{
sa.Teleport(line, side, thing);
}
break;
case 128:
// Raise to nearest floor.
sa.DoFloor(line, FloorMoveType.RaiseFloorToNearest);
break;
case 129:
// Raise floor turbo.
sa.DoFloor(line, FloorMoveType.RaiseFloorTurbo);
break;
}
}
public void Make(Fixed frac, LineDef line)
{
this.frac = frac;
this.thing = null;
this.line = line;
}
public void Make(Fixed frac, Mobj thing)
{
this.frac = frac;
this.thing = thing;
this.line = null;
}
