CPos?FindDropLocation(CPos targetCell, WDist maxSearchDistance)
{
// The easy case
if (positionable.CanEnterCell(targetCell))
{
return(targetCell);
}
var cellRange = (maxSearchDistance.Length + 1023) / 1024;
var centerPosition = self.World.Map.CenterOfCell(targetCell);
foreach (var c in self.World.Map.FindTilesInCircle(targetCell, cellRange))
{
if (!positionable.CanEnterCell(c))
{
continue;
}
var delta = self.World.Map.CenterOfCell(c) - centerPosition;
if (delta.LengthSquared < maxSearchDistance.LengthSquared)
{
return(c);
}
}
return(null);
}
// Find a suitable location to drop our carryable
CPos GetLocationToDrop(CPos requestedPosition)
{
if (positionable.CanEnterCell(requestedPosition))
{
return(requestedPosition);
}
var candidateCells = Util.AdjacentCells(self.World, Target.FromCell(self.World, requestedPosition));
// TODO: This will behave badly if there is no suitable drop point nearby
do
{
foreach (var c in candidateCells)
{
if (positionable.CanEnterCell(c))
{
return(c);
}
}
// Expanding dropable cells search area
// TODO: This also includes all of the cells we have just checked
candidateCells = Util.ExpandFootprint(candidateCells, true);
} while (true);
}
void INotifyParachuteLanded.OnLanded(Actor ignore)
{
if (!info.KilledOnImpassableTerrain)
{
return;
}
if (positionable.CanEnterCell(self.Location, self))
{
return;
}
if (ignore != null && self.World.ActorMap.GetActorsAt(self.Location).Any(a => a != ignore))
{
return;
}
var terrain = self.World.Map.GetTerrainInfo(self.Location);
var sound = terrain.IsWater ? info.WaterImpactSound : info.GroundImpactSound;
Game.Sound.Play(sound, self.CenterPosition);
var sequence = terrain.IsWater ? info.WaterCorpseSequence : info.GroundCorpseSequence;
var palette = terrain.IsWater ? info.WaterCorpsePalette : info.GroundCorpsePalette;
if (sequence != null && palette != null)
{
self.World.AddFrameEndTask(w => w.Add(new SpriteEffect(self.OccupiesSpace.CenterPosition, w, info.Image, sequence, palette)));
}
self.Kill(self);
}
public void OnLanded()
{
if (!info.KilledOnImpassableTerrain)
{
return;
}
if (positionable.CanEnterCell(self.Location))
{
return;
}
var terrain = self.World.Map.GetTerrainInfo(self.Location);
var sound = terrain.IsWater ? info.WaterImpactSound : info.GroundImpactSound;
Sound.Play(sound, self.CenterPosition);
var sequence = terrain.IsWater ? info.WaterCorpseSequence : info.GroundCorpseSequence;
var palette = terrain.IsWater ? info.WaterCorpsePalette : info.GroundCorpsePalette;
self.World.AddFrameEndTask(w => w.Add(new Explosion(w, self.OccupiesSpace.CenterPosition, sequence, palette)));
self.Kill(self);
}
protected virtual Activity InnerTick(Actor self, AttackBase attack)
{
if (IsCanceled)
{
return(NextActivity);
}
var type = Target.Type;
if (!Target.IsValidFor(self) || type == TargetType.FrozenActor)
{
return(NextActivity);
}
if (attack.Info.AttackRequiresEnteringCell && !positionable.CanEnterCell(Target.Actor.Location, null, false))
{
return(NextActivity);
}
// Drop the target if it moves under the shroud / fog.
// HACK: This would otherwise break targeting frozen actors
// The problem is that Shroud.IsTargetable returns false (as it should) for
// frozen actors, but we do want to explicitly target the underlying actor here.
if (!attack.Info.IgnoresVisibility && type == TargetType.Actor && !Target.Actor.Info.HasTraitInfo <FrozenUnderFogInfo>() && !self.Owner.CanTargetActor(Target.Actor))
{
return(NextActivity);
}
// Drop the target once none of the weapons are effective against it
var armaments = attack.ChooseArmamentsForTarget(Target, forceAttack);
if (!armaments.Any())
{
return(NextActivity);
}
// Update ranges
minRange = armaments.Max(a => a.Weapon.MinRange);
maxRange = armaments.Min(a => a.MaxRange());
// Try to move within range
if (move != null && (!Target.IsInRange(self.CenterPosition, maxRange) || Target.IsInRange(self.CenterPosition, minRange)))
{
return(Util.SequenceActivities(move.MoveWithinRange(Target, minRange, maxRange), this));
}
var desiredFacing = Util.GetFacing(Target.CenterPosition - self.CenterPosition, 0);
if (facing.Facing != desiredFacing)
{
return(Util.SequenceActivities(new Turn(self, desiredFacing), this));
}
attack.DoAttack(self, Target, armaments);
return(this);
}
public override Activity Tick(Actor self)
{
if (countdown > 0)
{
countdown--;
return(this);
}
// Wait for the worm to get back underground
if (stance == AttackState.ReturningUnderground)
{
sandworm.IsAttacking = false;
// There is a chance that the worm would just go away after attacking
if (self.World.SharedRandom.Next() % 100 <= sandworm.Info.ChanceToDisappear)
{
self.CancelActivity();
self.World.AddFrameEndTask(w => self.Kill(self));
}
else
{
renderUnit.DefaultAnimation.ReplaceAnim("idle");
}
return(NextActivity);
}
// Wait for the worm to get in position
if (stance == AttackState.Burrowed)
{
// This is so that the worm cancels an attack against a target that has reached solid rock
if (!positionable.CanEnterCell(target.Actor.Location, null, false))
{
return(NextActivity);
}
if (!WormAttack(self))
{
renderUnit.DefaultAnimation.ReplaceAnim("idle");
return(NextActivity);
}
countdown = swallow.Info.ReturnTime;
stance = AttackState.ReturningUnderground;
}
return(this);
}
void INotifyParachute.OnLanded(Actor self)
{
IsInAir = false;
if (parachutingToken != Actor.InvalidConditionToken)
{
parachutingToken = self.RevokeCondition(parachutingToken);
}
if (!info.KilledOnImpassableTerrain)
{
return;
}
var cell = self.Location;
if (positionable.CanEnterCell(cell, self))
{
return;
}
if (IgnoreActor != null && !self.World.ActorMap.GetActorsAt(cell)
.Any(a => a != IgnoreActor && a != self && self.World.Map.DistanceAboveTerrain(a.CenterPosition) == WDist.Zero))
{
return;
}
var onWater = info.WaterTerrainTypes.Contains(self.World.Map.GetTerrainInfo(cell).Type);
var sound = onWater ? info.WaterImpactSound : info.GroundImpactSound;
Game.Sound.Play(SoundType.World, sound, self.CenterPosition);
var sequence = onWater ? info.WaterCorpseSequence : info.GroundCorpseSequence;
var palette = onWater ? info.WaterCorpsePalette : info.GroundCorpsePalette;
if (!string.IsNullOrEmpty(info.Image) && !string.IsNullOrEmpty(sequence) && palette != null)
{
self.World.AddFrameEndTask(w => w.Add(new SpriteEffect(self.OccupiesSpace.CenterPosition, w, info.Image, sequence, palette)));
}
self.Kill(self, info.DamageTypes);
}
void INotifyParachute.OnLanded(Actor self, Actor ignore)
{
IsInAir = false;
if (parachutingToken != ConditionManager.InvalidConditionToken)
{
parachutingToken = conditionManager.RevokeCondition(self, parachutingToken);
}
if (!info.KilledOnImpassableTerrain)
{
return;
}
var cell = self.Location;
if (positionable.CanEnterCell(cell, self))
{
return;
}
if (ignore != null && self.World.ActorMap.GetActorsAt(cell).Any(a => a != ignore))
{
return;
}
var onWater = info.WaterTerrainTypes.Contains(self.World.Map.GetTerrainInfo(cell).Type);
var sound = onWater ? info.WaterImpactSound : info.GroundImpactSound;
Game.Sound.Play(SoundType.World, sound, self.CenterPosition);
var sequence = onWater ? info.WaterCorpseSequence : info.GroundCorpseSequence;
var palette = onWater ? info.WaterCorpsePalette : info.GroundCorpsePalette;
if (sequence != null && palette != null)
{
self.World.AddFrameEndTask(w => w.Add(new SpriteEffect(self.OccupiesSpace.CenterPosition, w, info.Image, sequence, palette)));
}
self.Kill(self);
}
// Can't be used in synced code, except with ignoreVis.
public virtual bool CanChronoshiftTo(Actor self, CPos targetLocation)
{
// TODO: Allow enemy units to be chronoshifted into bad terrain to kill them
return(!IsTraitDisabled && iPositionable != null && iPositionable.CanEnterCell(targetLocation));
}
public override bool Tick(Actor self)
{
switch (stance)
{
case AttackState.Uninitialized:
stance = AttackState.Burrowed;
countdown = swallow.Info.AttackDelay;
burrowLocation = self.Location;
if (conditionManager != null && attackingToken == ConditionManager.InvalidConditionToken &&
!string.IsNullOrEmpty(swallow.Info.AttackingCondition))
{
attackingToken = conditionManager.GrantCondition(self, swallow.Info.AttackingCondition);
}
break;
case AttackState.Burrowed:
if (--countdown > 0)
{
return(false);
}
var targetLocation = target.Actor.Location;
// The target has moved too far away
if ((burrowLocation - targetLocation).Length > NearEnough)
{
RevokeCondition(self);
return(true);
}
// The target reached solid ground
if (!positionable.CanEnterCell(targetLocation, null, false))
{
RevokeCondition(self);
return(true);
}
var targets = self.World.ActorMap.GetActorsAt(targetLocation)
.Where(t => !t.Equals(self) && weapon.IsValidAgainst(t, self));
if (!targets.Any())
{
RevokeCondition(self);
return(true);
}
stance = AttackState.Attacking;
countdown = swallow.Info.ReturnDelay;
sandworm.IsAttacking = true;
AttackTargets(self, targets);
break;
case AttackState.Attacking:
if (--countdown > 0)
{
return(false);
}
sandworm.IsAttacking = false;
// There is a chance that the worm would just go away after attacking
if (self.World.SharedRandom.Next(100) <= sandworm.WormInfo.ChanceToDisappear)
{
self.CancelActivity();
self.World.AddFrameEndTask(w => self.Dispose());
}
RevokeCondition(self);
return(true);
}
return(false);
}
protected virtual AttackStatus TickAttack(Actor self, AttackBase attack)
{
if (IsCanceled)
{
return(AttackStatus.UnableToAttack);
}
var type = Target.Type;
if (!Target.IsValidFor(self) || type == TargetT.FrozenActor)
{
return(AttackStatus.UnableToAttack);
}
if (attack.Info.AttackRequiresEnteringCell && !positionable.CanEnterCell(Target.Actor.Location, null, false))
{
return(AttackStatus.UnableToAttack);
}
//Drop the target if it moves under the shroud / fog.
if (!attack.Info.IgnoresVisibility && type == TargetT.Actor &&
!Target.Actor.Info.HasTraitInfo <FrozenUnderFogInfo>() &&
!Target.Actor.CanBeViewedByPlayer(self.Owner))
{
return(AttackStatus.UnableToAttack);
}
//Drop the target once none of the weapons are effective against it
var armaments = attack.ChooseArmamentsForTarget(Target, forceAttack).ToList();
if (armaments.Count == 0)
{
return(AttackStatus.UnableToAttack);
}
//Update ranges
minRange = armaments.Max(a => a.Weapon.MinRange);
maxRange = armaments.Min(a => a.MaxRange());
var pos = self.CenterPosition;
var mobile = move as Mobile;
if (!Target.IsInRange(pos, maxRange) ||
(minRange.Length != 0 && Target.IsInRange(pos, minRange)) ||
(mobile != null && !mobile.CanInteractWithGroundLayer(self)))
{
//Try to move within range,drop the target otherwise.
if (move == null)
{
return(AttackStatus.UnableToAttack);
}
attackStatus |= AttackStatus.NeedsToMove;
moveActivity = ActivityUtils.SequenceActivities(move.MoveWithinRange(Target, minRange, maxRange), this);
return(AttackStatus.NeedsToMove);
}
var targetedPosition = attack.GetTargetPosition(pos, Target);
var desiredFacing = (targetedPosition - pos).Yaw.Facing;
if (!Util.FacingWithinTolerance(facing.Facing, desiredFacing, facingTolerance))
{
attackStatus |= AttackStatus.NeedsToTurn;
turnActivity = ActivityUtils.SequenceActivities(new Turn(self, desiredFacing), this);
return(AttackStatus.NeedsToTurn);
}
attackStatus |= AttackStatus.Attacking;
attack.DoAttack(self, Target, armaments);
return(AttackStatus.Attacking);
}
protected virtual AttackStatus TickAttack(Actor self, AttackFrontal attack)
{
if (!target.IsValidFor(self))
{
return(AttackStatus.UnableToAttack);
}
if (attack.Info.AttackRequiresEnteringCell && !positionable.CanEnterCell(target.Actor.Location, null, false))
{
return(AttackStatus.UnableToAttack);
}
if (!attack.Info.TargetFrozenActors && !forceAttack && target.Type == TargetType.FrozenActor)
{
// Try to move within range, drop the target otherwise
if (move == null)
{
return(AttackStatus.UnableToAttack);
}
var rs = revealsShroud
.Where(Exts.IsTraitEnabled)
.MaxByOrDefault(s => s.Range);
// Default to 2 cells if there are no active traits
var sightRange = rs != null ? rs.Range : WDist.FromCells(2);
attackStatus |= AttackStatus.NeedsToMove;
QueueChild(self, move.MoveWithinRange(target, sightRange, target.CenterPosition, Color.Red), true);
return(AttackStatus.NeedsToMove);
}
// Drop the target once none of the weapons are effective against it
var armaments = attack.ChooseArmamentsForTarget(target, forceAttack).ToList();
if (armaments.Count == 0)
{
return(AttackStatus.UnableToAttack);
}
// Update ranges
minRange = armaments.Max(a => a.Weapon.MinRange);
maxRange = armaments.Min(a => a.MaxRange());
var pos = self.CenterPosition;
var mobile = move as Mobile;
if (!target.IsInRange(pos, maxRange) ||
(minRange.Length != 0 && target.IsInRange(pos, minRange)) ||
(mobile != null && !mobile.CanInteractWithGroundLayer(self)))
{
// Try to move within range, drop the target otherwise
if (move == null)
{
return(AttackStatus.UnableToAttack);
}
attackStatus |= AttackStatus.NeedsToMove;
var checkTarget = useLastVisibleTarget ? lastVisibleTarget : target;
QueueChild(self, move.MoveWithinRange(target, minRange, maxRange, checkTarget.CenterPosition, Color.Red), true);
return(AttackStatus.NeedsToMove);
}
if (!attack.TargetInFiringArc(self, target, attack.Info.FacingTolerance))
{
var desiredFacing = (attack.GetTargetPosition(pos, target) - pos).Yaw.Facing;
attackStatus |= AttackStatus.NeedsToTurn;
QueueChild(self, new Turn(self, desiredFacing), true);
return(AttackStatus.NeedsToTurn);
}
attackStatus |= AttackStatus.Attacking;
DoAttack(self, attack, armaments);
return(AttackStatus.Attacking);
}
protected virtual Activity InnerTick(Actor self, AttackBase attack)
{
if (IsCanceled)
{
return(NextActivity);
}
var type = Target.Type;
if (!Target.IsValidFor(self) || type == TargetType.FrozenActor)
{
return(NextActivity);
}
if (attack.Info.AttackRequiresEnteringCell && !positionable.CanEnterCell(Target.Actor.Location, null, false))
{
return(NextActivity);
}
// Drop the target if it moves under the shroud / fog.
// HACK: This would otherwise break targeting frozen actors
// The problem is that Shroud.IsTargetable returns false (as it should) for
// frozen actors, but we do want to explicitly target the underlying actor here.
if (!attack.Info.IgnoresVisibility && type == TargetType.Actor && !Target.Actor.Info.HasTraitInfo <FrozenUnderFogInfo>() && !self.Owner.CanTargetActor(Target.Actor))
{
return(NextActivity);
}
// Drop the target once none of the weapons are effective against it
var armaments = attack.ChooseArmamentsForTarget(Target, forceAttack).ToList();
if (armaments.Count == 0)
{
return(NextActivity);
}
// Update ranges
minRange = armaments.Max(a => a.Weapon.MinRange);
maxRange = armaments.Min(a => a.MaxRange());
var pos = self.CenterPosition;
var mobile = move as Mobile;
if (!Target.IsInRange(pos, maxRange) ||
(minRange.Length != 0 && Target.IsInRange(pos, minRange)) ||
(mobile != null && !mobile.CanInteractWithGroundLayer(self)))
{
// Try to move within range, drop the target otherwise
if (move == null)
{
return(NextActivity);
}
attackStatus |= AttackStatus.NeedsToMove;
moveActivity = ActivityUtils.SequenceActivities(move.MoveWithinRange(Target, minRange, maxRange), this);
return(NextActivity);
}
var targetedPosition = attack.GetTargetPosition(pos, Target);
var desiredFacing = (targetedPosition - pos).Yaw.Facing;
if (facing.Facing != desiredFacing)
{
attackStatus |= AttackStatus.NeedsToTurn;
turnActivity = ActivityUtils.SequenceActivities(new Turn(self, desiredFacing), this);
return(NextActivity);
}
attackStatus |= AttackStatus.Attacking;
attack.DoAttack(self, Target, armaments);
return(this);
}