public override VMPrimitiveExitCode Execute(VMStackFrame context, VMPrimitiveOperand args)
{
var operand = (VMSnapOperand)args;
var avatar = context.Caller; //todo, can sometimes be an object?? see roaches object tile movement, snaps to its own routing slot
var obj = context.StackObject;
SLOTItem slot = null;
switch (operand.Mode)
{
case VMSnapSlotScope.StackVariable:
slot = VMMemory.GetSlot(context, VMSlotScope.StackVariable, operand.Index);
break;
case VMSnapSlotScope.BeContained:
return (context.StackObject.PlaceInSlot(context.Caller, 0, true, context.VM.Context)) ? VMPrimitiveExitCode.GOTO_TRUE:VMPrimitiveExitCode.GOTO_FALSE;
case VMSnapSlotScope.InFront:
slot = new SLOTItem { Type = 3, Standing = 1, MinProximity = 16, Rsflags = SLOTFlags.NORTH };
break;
case VMSnapSlotScope.Literal:
slot = VMMemory.GetSlot(context, VMSlotScope.Literal, operand.Index);
break;
case VMSnapSlotScope.Global:
slot = VMMemory.GetSlot(context, VMSlotScope.Global, operand.Index);
break;
}
if (operand.Mode != VMSnapSlotScope.BeContained)
{
var parser = new VMSlotParser(slot);
var locations = parser.FindAvaliableLocations(obj, context.VM.Context, avatar);
if (slot.SnapTargetSlot > -1)
{
if (!context.StackObject.PlaceInSlot(context.Caller, slot.SnapTargetSlot, true, context.VM.Context)) return VMPrimitiveExitCode.GOTO_FALSE;
if (locations.Count > 0) avatar.RadianDirection = ((slot.Rsflags & SLOTFlags.SnapToDirection) > 0) ? locations[0].RadianDirection: avatar.RadianDirection;
}
else
{
if (locations.Count > 0)
{
if (!SetPosition(avatar, locations[0].Position,
((slot.Rsflags & SLOTFlags.SnapToDirection) > 0) ? locations[0].RadianDirection : avatar.RadianDirection,
context.VM.Context))
return VMPrimitiveExitCode.GOTO_FALSE;
}
else
{
avatar.SetValue(VMStackObjectVariable.PrimitiveResultID, (parser.Blocker == null) ? (short)0 : parser.Blocker.ObjectID);
return VMPrimitiveExitCode.GOTO_FALSE;
}
}
}
return VMPrimitiveExitCode.GOTO_TRUE;
}
public VMPrimitiveExitCode Tick()
{
var avatar = (VMAvatar)Caller;
avatar.Velocity = new Vector3(0, 0, 0);
if (State != VMRoutingFrameState.FAILED && avatar.GetFlag(VMEntityFlags.InteractionCanceled) && avatar.GetPersonData(VMPersonDataVariable.NonInterruptable) == 0)
{
HardFail(VMRouteFailCode.Interrupted, null);
return VMPrimitiveExitCode.CONTINUE;
}
if (WaitTime > 0)
{
if (Velocity > 0) Velocity--;
if (avatar.Animations.Count < 3) StartWalkAnimation();
avatar.Animations[0].Weight = (8 - Velocity) / 8f;
avatar.Animations[1].Weight = (Velocity / 8f) * 0.66f;
avatar.Animations[2].Weight = (Velocity / 8f) * 0.33f;
WaitTime--;
Timeout--;
if (Timeout <= 0)
{
//try again. not sure if we should reset timeout for the new route
SoftFail(VMRouteFailCode.NoPath, null);
if (State != VMRoutingFrameState.FAILED) {
Velocity = 0;
State = VMRoutingFrameState.WALKING;
}
} else return VMPrimitiveExitCode.CONTINUE_NEXT_TICK;
}
if (RoomRouteInvalid && State != VMRoutingFrameState.BEGIN_TURN && State != VMRoutingFrameState.END_TURN)
{
RoomRouteInvalid = false;
IgnoredRooms.Clear();
WalkTo = null; //reset routing state
if (!DoRoomRoute(CurRoute))
{
if (CurRoute != null) SoftFail(VMRouteFailCode.NoRoomRoute, null);
else HardFail(VMRouteFailCode.NoRoomRoute, null);
}
else if (Rooms.Count > 0)
{
State = VMRoutingFrameState.INITIAL;
}
}
switch (State)
{
case VMRoutingFrameState.STAND_FUNC:
if (Thread.LastStackExitCode == VMPrimitiveExitCode.RETURN_TRUE)
{
State = VMRoutingFrameState.INITIAL;
if (avatar.GetPersonData(VMPersonDataVariable.Posture) == 1) avatar.SetPersonData(VMPersonDataVariable.Posture, 0);
}
else
SoftFail(VMRouteFailCode.CantStand, null);
return VMPrimitiveExitCode.CONTINUE;
case VMRoutingFrameState.INITIAL:
case VMRoutingFrameState.ROOM_PORTAL:
//check if the room portal that just finished succeeded.
if (State == VMRoutingFrameState.ROOM_PORTAL) {
if (Thread.LastStackExitCode != VMPrimitiveExitCode.RETURN_TRUE)
{
IgnoredRooms.Add(CurrentPortal);
State = VMRoutingFrameState.INITIAL;
if (!DoRoomRoute(CurRoute))
{
SoftFail(VMRouteFailCode.NoRoomRoute, null); //todo: reattempt room route with portal we tried removed.
return VMPrimitiveExitCode.CONTINUE;
}
}
}
if (Rooms.Count > 0)
{ //push portal function of next portal
CurrentPortal = Rooms.Pop();
var ent = VM.GetObjectById(CurrentPortal.ObjectID);
State = VMRoutingFrameState.ROOM_PORTAL;
if (!PushEntryPoint(15, ent)) //15 is portal function
SoftFail(VMRouteFailCode.NoRoomRoute, null); //could not execute portal function
return VMPrimitiveExitCode.CONTINUE;
}
//if we're here, room route is OK. start routing to a destination.
if (Choices == null)
{
//perform slot parse.
if (Slot == null)
{
HardFail(VMRouteFailCode.Unknown, null);
return VMPrimitiveExitCode.CONTINUE; //this should never happen. If it does, someone has used the routing system incorrectly.
}
var parser = new VMSlotParser(Slot);
Choices = parser.FindAvaliableLocations(Target, VM.Context, avatar);
if (Choices.Count == 0)
{
HardFail(parser.FailCode, parser.Blocker);
return VMPrimitiveExitCode.CONTINUE;
}
else
{
CurRoute = Choices[0];
Choices.RemoveAt(0);
}
}
//do we need to sit in a seat? it should take over.
if (CurRoute.Chair != null)
{
if (!AttemptedChair)
{
AttemptedChair = true;
if (PushEntryPoint(26, CurRoute.Chair)) return VMPrimitiveExitCode.CONTINUE;
else
{
SoftFail(VMRouteFailCode.CantSit, null);
return VMPrimitiveExitCode.CONTINUE;
}
}
else
{
if (Thread.LastStackExitCode == VMPrimitiveExitCode.RETURN_TRUE) return VMPrimitiveExitCode.RETURN_TRUE;
else
{
SoftFail(VMRouteFailCode.CantSit, null);
return VMPrimitiveExitCode.CONTINUE;
}
}
}
//If we are sitting, and the target is not this seat we need to call the stand function on the object we are contained within.
if (avatar.GetPersonData(VMPersonDataVariable.Posture) == 1)
{
State = VMRoutingFrameState.STAND_FUNC;
//push it onto our stack, except now the portal owns our soul! when we are returned to we can evaluate the result and determine if the route failed.
var chair = Caller.Container;
if (chair == null) avatar.SetPersonData(VMPersonDataVariable.Posture, 0); //we're sitting, but are not bound to a chair. Just instantly get up..
else
{
if (!PushEntryPoint(27, chair)) //27 is stand. TODO: set up an enum for these
HardFail(VMRouteFailCode.CantStand, null);
return VMPrimitiveExitCode.CONTINUE;
}
}
//no chair, we just need to walk to the spot. Start the within-room routing.
if (WalkTo == null)
{
if (!AttemptWalk())
{
SoftFail(VMRouteFailCode.NoPath, null);
return VMPrimitiveExitCode.CONTINUE;
}
}
if (State != VMRoutingFrameState.TURN_ONLY) BeginWalk();
return VMPrimitiveExitCode.CONTINUE;
case VMRoutingFrameState.FAILED:
return VMPrimitiveExitCode.RETURN_FALSE;
case VMRoutingFrameState.TURN_ONLY:
return (EndWalk()) ? VMPrimitiveExitCode.RETURN_TRUE : VMPrimitiveExitCode.CONTINUE;
case VMRoutingFrameState.SHOOED:
StartWalkAnimation();
State = VMRoutingFrameState.WALKING;
return VMPrimitiveExitCode.CONTINUE;
case VMRoutingFrameState.BEGIN_TURN:
case VMRoutingFrameState.END_TURN:
if (avatar.CurrentAnimationState.EndReached)
{
if (State == VMRoutingFrameState.BEGIN_TURN)
{
State = VMRoutingFrameState.WALKING;
WalkDirection = TargetDirection;
avatar.RadianDirection = (float)TargetDirection;
StartWalkAnimation();
return VMPrimitiveExitCode.CONTINUE;
}
else
{
if (!CurRoute.FaceAnywhere) avatar.RadianDirection = CurRoute.RadianDirection;
//reset animation, so that we're facing the correct direction afterwards.
avatar.Animations.Clear();
var animation = FSO.Content.Content.Get().AvatarAnimations.Get(avatar.WalkAnimations[3] + ".anim");
var state = new VMAnimationState(animation, false);
state.Loop = true;
avatar.Animations.Add(state);
return VMPrimitiveExitCode.RETURN_TRUE; //we are here!
}
}
else
{
avatar.RadianDirection += TurnTweak; //while we're turning, adjust our direction
return VMPrimitiveExitCode.CONTINUE_NEXT_TICK;
}
case VMRoutingFrameState.WALKING:
if (WalkTo == null)
{
if (!AttemptWalk())
{
SoftFail(VMRouteFailCode.NoPath, null);
}
return VMPrimitiveExitCode.CONTINUE;
}
if (WalkTo.Count == 0 && MoveTotalFrames - MoveFrames <= 28 && CanPortalTurn()) //7+6+5+4...
{
//tail off
if (Velocity <= 0) Velocity = 1;
if (Velocity > 1) Velocity--;
}
else
{
//get started
if (Velocity < 8) Velocity++;
}
avatar.Animations[0].Weight = (8 - Velocity) / 8f;
avatar.Animations[1].Weight = (Velocity / 8f) * 0.66f;
avatar.Animations[2].Weight = (Velocity / 8f) * 0.33f;
MoveFrames += Velocity;
if (MoveFrames >= MoveTotalFrames)
{
MoveFrames = MoveTotalFrames;
//move us to the final spot, then attempt an advance.
}
//normal sims can move 0.05 units in a frame.
if (TurnFrames > 0)
{
avatar.RadianDirection = (float)(TargetDirection + DirectionUtils.Difference(TargetDirection, WalkDirection) * (TurnFrames / 10.0));
TurnFrames--;
}
else avatar.RadianDirection = (float)TargetDirection;
var diff = CurrentWaypoint - PreviousPosition;
diff.x = (short)((diff.x * MoveFrames) / MoveTotalFrames);
diff.y = (short)((diff.y * MoveFrames) / MoveTotalFrames);
var storedDir = avatar.RadianDirection;
var result = Caller.SetPosition(PreviousPosition + diff, Direction.NORTH, VM.Context);
avatar.RadianDirection = storedDir;
if (result.Status != VMPlacementError.Success && result.Status != VMPlacementError.CantBeThroughWall)
{
//route failure, either something changed or we hit an avatar
//on both cases try again, but if we hit an avatar then detect if they have a routing frame and stop us for a bit.
//we stop the first collider because in most cases they're walking across our walk direction and the problem will go away after a second once they're past.
//
//if we need to route around a stopped avatar we add them to our "avatars to consider" set.
bool routeAround = true;
VMRoutingFrame colRoute = null;
if (result.Object != null && result.Object is VMAvatar)
{
var colAvatar = (VMAvatar)result.Object;
var colTopFrame = colAvatar.Thread.Stack.LastOrDefault();
//we already attempted to move around this avatar... if this happens too much give up.
if (AvatarsToConsider.Contains(colAvatar) && --Retries <= 0)
{
SoftFail(VMRouteFailCode.NoPath, avatar);
return VMPrimitiveExitCode.CONTINUE;
}
if (colTopFrame != null && colTopFrame is VMRoutingFrame)
{
colRoute = (VMRoutingFrame)colTopFrame;
routeAround = (colRoute.WaitTime > 0);
}
if (routeAround) AvatarsToConsider.Add(colAvatar);
}
if (result.Object == null || result.Object is VMGameObject)
{
//this should not happen often. An object or other feature has blocked our path due to some change in its position.
//repeated occurances indicate that we are stuck in something.
//todo: is this safe for the robot lot?
if (--Retries <= 0)
{
SoftFail(VMRouteFailCode.NoPath, avatar);
return VMPrimitiveExitCode.CONTINUE;
}
}
if (routeAround)
{
var oldWalk = new LinkedList<Point>(WalkTo);
if (AttemptWalk()) return VMPrimitiveExitCode.CONTINUE;
else
{
//failed to walk around the object
if (result.Object is VMAvatar)
{
WalkTo = oldWalk;
//if they're a person, shoo them away.
//if they're in a routing frame we can push the tree directly onto their stack
//otherwise we push an interaction and just hope they move (todo: does tso do this?)
//DO NOT push tree if:
// - sim is already being shooed. (the parent of the top routing frame is in state "SHOOED" or shoo interaction is present)
// - we are being shooed.
// - sim is waiting on someone they just shooed. (presumably can move out of our way once they finish waiting)
//instead just wait a small duration and try again later.
//cases where we cannot continue moving increase the retry count. if this is greater than RETRY_COUNT then we fail.
//not sure how the original game works.
if (CanShooAvatar((VMAvatar)result.Object))
{
AvatarsToConsider.Remove((VMAvatar)result.Object);
VMEntity callee = VM.Context.CreateObjectInstance(GOTO_GUID, new LotTilePos(result.Object.Position), Direction.NORTH).Objects[0];
if (colRoute != null)
{
colRoute.State = VMRoutingFrameState.SHOOED;
colRoute.WalkTo = null;
colRoute.AvatarsToConsider.Add(avatar); //just to make sure they don't try route through us.
var tree = callee.GetBHAVWithOwner(SHOO_TREE, VM.Context);
result.Object.Thread.ExecuteSubRoutine(colRoute, tree.bhav, tree.owner, new VMSubRoutineOperand());
WalkInterrupt(60);
}
else
{
callee.PushUserInteraction(SHOO_INTERACTION, result.Object, VM.Context);
WalkInterrupt(60);
}
}
else
{
WalkInterrupt(60); //wait for a little while, they're moving out of the way.
}
return VMPrimitiveExitCode.CONTINUE;
}
SoftFail(VMRouteFailCode.DestTileOccupied, result.Object);
return VMPrimitiveExitCode.CONTINUE;
}
}
else
{
WalkInterrupt(30);
return VMPrimitiveExitCode.CONTINUE;
}
}
Caller.VisualPosition = Vector3.Lerp(PreviousPosition.ToVector3(), CurrentWaypoint.ToVector3(), MoveFrames / (float)MoveTotalFrames);
var velocity = Vector3.Lerp(PreviousPosition.ToVector3(), CurrentWaypoint.ToVector3(), Velocity / (float)MoveTotalFrames) - PreviousPosition.ToVector3();
velocity.Z = 0;
avatar.Velocity = velocity;
if (MoveTotalFrames == MoveFrames)
{
MoveTotalFrames = 0;
while (MoveTotalFrames == 0)
{
var remains = AdvanceWaypoint();
if (!remains)
{
MoveTotalFrames = -1;
if (EndWalk()) return VMPrimitiveExitCode.RETURN_TRUE;
}
}
}
return VMPrimitiveExitCode.CONTINUE_NEXT_TICK;
}
return VMPrimitiveExitCode.GOTO_FALSE; //???
}