public override ValueTask <MovementResult> Update(CanvasTimingInformation context)
{
if (!_readyToExit && _door.CanGhostLeave(Ghost))
{
_readyToExit = true;
return(new ValueTask <MovementResult>(MovementResult.NotFinished));
}
if (_finished)
{
Ghost.Direction = new DirectionInfo(Directions.Left, Directions.Left);
Ghost.SetMovementMode(GhostMovementMode.Undecided);
return(new ValueTask <MovementResult>(MovementResult.Finished));
}
Vector2 diff = _cellToMoveTo - _cellToMoveFrom;
if (diff != Vector2.Zero)
{
diff = diff.Normalize();
Ghost.Position = Ghost.Position + diff / Vector2s.Two;
var dir = DirectionToIndexLookup.GetDirectionFromVector(diff);
Ghost.Direction = new DirectionInfo(dir, dir);
}
if (Ghost.Position.Floor() == _cellToMoveTo.Floor())
{
Ghost.Position = _cellToMoveTo;
whenAtTargetCell();
}
return(new ValueTask <MovementResult>(MovementResult.NotFinished));
}
public GhostInsideHouseMover(
Ghost ghost,
IMaze maze,
GhostHouseDoor ghostHouseDoor) :
base(ghost, GhostMovementMode.InHouse, maze, () => new ValueTask <CellIndex>(CellIndex.Zero))
{
_door = ghostHouseDoor;
Vector2 center = Maze.PixelCenterOfHouse;
float x = center.X + ghost.OffsetInHouse * 16;
_topPos = new Vector2(x, (float)(13.5 * 8 + 4));
_bottomPos = new Vector2(x, (float)(15.5 * 8 - 4));
var centerOfUpDown = new Vector2(_topPos.X, Maze.PixelCenterOfHouse.Y);
ghost.Position = _topPos + new Vector2(0, (_bottomPos.Y - _topPos.Y) / 2);
_cellToMoveFrom = ghost.Position;
if (ghost.Direction.Current == Directions.Down)
{
_cellToMoveTo = _bottomPos;
}
else if (ghost.Direction.Current == Directions.Up)
{
_cellToMoveTo = _topPos;
}
else
{
throw new InvalidOperationException("Ghost must be pointing up or down at start.");
}
_routeOut = new[] { centerOfUpDown, Maze.PixelCenterOfHouse, Maze.PixelHouseEntrancePoint };
}
public GhostLogic(IMaze maze, Ghost ghost)
{
_maze = maze;
_ghost = ghost;
_lastDecisionMadeAt = CellIndex.Zero;
}
public GhostFrightenedMover(Ghost ghost, IMaze maze) : base(ghost, GhostMovementMode.Frightened, maze, _getChaseTargetCell)
{
}
