public void ToPoints(TurtleSituation situation)
{
Points = new PointCollection
{
new Point(situation.Position.X + 10, situation.Position.Y),
new Point(situation.Position.X, situation.Position.Y + 20),
new Point(situation.Position.X - 10, situation.Position.Y)
};
}
public override TurtleSituation CalculateSituation(TurtleSituation currentSituation)
{
var result = (TurtleSituation)currentSituation.Clone();
result.Position = new Position {
X = X, Y = Y
};
result.Change = TurtleSituationChange.Positioned;
return(result);
}
private void DoTurtle(TurtleSituation newSituation)
{
var rotateTransform = new RotateTransform(newSituation.TurnAngle)
{
CenterX = newSituation.Position.X,
CenterY = newSituation.Position.Y
};
turtleShape.ToTurtle(newSituation);
turtleShape.RenderTransform = rotateTransform;
drawingInstructions.Remove(turtleShape);
drawingInstructions.Add(turtleShape);
}
public static Polygon ToTurtle(this Polygon turtle, TurtleSituation situation)
{
var brush = new SolidColorBrush(Colors.Blue);
turtle.Points = new PointCollection
{
new Point(situation.Position.X + 10, situation.Position.Y),
new Point(situation.Position.X, situation.Position.Y + 20),
new Point(situation.Position.X - 10, situation.Position.Y)
};
turtle.Stroke = brush;
turtle.StrokeThickness = 3;
return(turtle);
}
public void CanCreateTwoSentenceLogoProgram()
{
ICollection <BaseLogoCommand> programCommands = LogoController.CreateAndParse("FORWARD 100 LEFT 90");
var firstCommand = programCommands.ElementAt(0) as LogoMoveCommand;
Assert.IsNotNull(firstCommand);
Assert.AreEqual(100, firstCommand.Distance);
TurtleSituation forwardSituation = firstCommand.CalculateSituation(TurtleSituation.DefaultSituation);
Assert.AreEqual(TurtleSituation.DefaultSituation.Angle, forwardSituation.Angle);
var secondCommand = programCommands.ElementAt(1) as LogoTurnCommand;
Assert.IsNotNull(secondCommand);
Assert.AreEqual(90, secondCommand.TurnAngle);
TurtleSituation leftSituation = secondCommand.CalculateSituation(forwardSituation);
Assert.AreEqual(TurtleSituation.DefaultSituation.Angle + 90, leftSituation.Angle);
}
public void Handle(ILogoCommandEvent e)
{
TurtleSituation currentSituation = LogoController.CurrentSituation;
TurtleSituation newSituation = e.LogoCommand.CalculateSituation(currentSituation);
switch (newSituation.Change)
{
case TurtleSituationChange.Moved:
var line = new DrawingInstruction
{
X1 = currentSituation.Position.X,
Y1 = currentSituation.Position.Y,
X2 = newSituation.Position.X,
Y2 = newSituation.Position.Y,
TimeOffset = currentTime
};
DrawingInstructions.Add(line);
break;
case TurtleSituationChange.Cleared:
newSituation = TurtleSituation.DefaultSituation;
List <BaseInstruction> itemsToRemove = DrawingInstructions.Where(i => i is DrawingInstruction).ToList();
foreach (BaseInstruction itemToRemove in itemsToRemove)
{
DrawingInstructions.Remove(itemToRemove);
}
break;
case TurtleSituationChange.Positioned:
case TurtleSituationChange.Turned:
case TurtleSituationChange.None:
// Do nothing
break;
default:
throw new ArgumentOutOfRangeException();
}
DoTurtle(currentSituation, newSituation);
currentTime = currentTime.Add(TimeSpan.FromMilliseconds(TURTLE_SPEED_IN_MS));
LogoController.CurrentSituation = newSituation;
}
private void DoTurtle(TurtleSituation currentSituation, TurtleSituation newSituation)
{
turtleInstruction.CenterX = newSituation.Position.X;
turtleInstruction.CenterY = newSituation.Position.Y;
turtleInstruction.TurnAngle = newSituation.TurnAngle;
turtleInstruction.TimeOffset = currentTime;
turtleInstruction.ToPoints(newSituation);
turtleInstruction.Movement =
new PathGeometry(
new PathFigureCollection
{
new PathFigure(new Point(currentSituation.Position.X, currentSituation.Position.Y),
new List <PathSegment>
{
new LineSegment(
new Point(newSituation.Position.X, newSituation.Position.Y), false)
}, false)
});
}
public void Handle(ILogoCommandEvent e)
{
TurtleSituation currentSituation = LogoController.CurrentSituation;
TurtleSituation newSituation = e.LogoCommand.CalculateSituation(currentSituation);
switch (newSituation.Change)
{
case TurtleSituationChange.Moved:
var brush = new SolidColorBrush(Colors.Black);
DrawingInstructions.Add(new Line
{
X1 = currentSituation.Position.X,
Y1 = currentSituation.Position.Y,
X2 = newSituation.Position.X,
Y2 = newSituation.Position.Y,
Stroke = brush,
StrokeThickness = 3
});
break;
case TurtleSituationChange.Cleared:
DrawingInstructions.Clear();
break;
case TurtleSituationChange.Positioned:
case TurtleSituationChange.None:
case TurtleSituationChange.Turned:
// Do nothing
break;
default:
throw new ArgumentOutOfRangeException();
}
DoTurtle(newSituation);
LogoController.CurrentSituation = newSituation;
}
public TurtleInstruction(TurtleSituation currentSituation)
{
ToPoints(currentSituation);
}
public override TurtleSituation CalculateSituation(TurtleSituation currentSituation)
{
TurtleSituation.DefaultTurtleSituation result = TurtleSituation.DefaultSituation;
result.Change = TurtleSituationChange.Cleared;
return(result);
}
