public void ChangingScale()
{
var parent = new ScaledPositionedObject { ScaleX = .5f, ScaleY = .5f };
var polygon = new ScaledPolygon
{
X = 10,
Y = 10,
Points = new List<Point>
{
new Point(0, 0),
new Point(32, 0),
new Point(32, 32),
new Point(0, 32),
new Point(0, 0)
}
};
polygon.AttachTo(parent, true);
polygon.UpdateDependencies(1.0);
polygon.RelativeScaleX = .5f;
polygon.RelativeScaleY = .5f;
polygon.UpdateDependencies(2.0);
Assert.IsTrue(Math.Abs(polygon.Points[0].X) < Single.Epsilon);
Assert.IsTrue(Math.Abs(polygon.Points[1].X - 8f) < Single.Epsilon);
Assert.IsTrue(Math.Abs(polygon.Points[2].X - 8f) < Single.Epsilon);
Assert.IsTrue(Math.Abs(polygon.Points[3].X) < Single.Epsilon);
Assert.IsTrue(Math.Abs(polygon.Points[4].X) < Single.Epsilon);
Assert.IsTrue(Math.Abs(polygon.Points[0].Y) < Single.Epsilon);
Assert.IsTrue(Math.Abs(polygon.Points[1].Y) < Single.Epsilon);
Assert.IsTrue(Math.Abs(polygon.Points[2].Y - 8f) < Single.Epsilon);
Assert.IsTrue(Math.Abs(polygon.Points[3].Y - 8f) < Single.Epsilon);
Assert.IsTrue(Math.Abs(polygon.Points[4].Y) < Single.Epsilon);
}
public void ParentScaleAffectsPosition()
{
var parent = new ScaledPositionedObject { ScaleX = .5f, ScaleY = .5f };
var polygon = new ScaledPolygon
{
X = 10,
Y = 15,
Points = new List<Point>
{
new Point(0, 0),
new Point(32, 0),
new Point(32, 32),
new Point(0, 32),
new Point(0, 0)
}
};
polygon.AttachTo(parent, true);
polygon.UpdateDependencies(1.0);
polygon.UpdateDependencies(2.0);
Assert.IsTrue(Math.Abs(polygon.X - 5f) < Single.Epsilon);
Assert.IsTrue(Math.Abs(polygon.Y - 7.5f) < Single.Epsilon);
}