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bbod
2019-10-23 19:06:40 -06:00
parent a586027c1f
commit 8d6ba5df72
9 changed files with 143 additions and 51 deletions
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39
Shapes/Rectangle.cs
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@@ -6,10 +6,10 @@ namespace Shapes
{
public class Rectangle : Shape
{
public override Color Fill { get; set; }
public override Color Color { get; set; }
public List<Point> Points { get; }
public Point CenterPoint { get; }
public override List<Point> Points { get; }
public List<Line> Lines { get; }
public override Point CenterPoint { get; }
public sealed override double Width { get; }
public sealed override double Height { get; }
@@ -17,10 +17,19 @@ namespace Shapes
public Rectangle(Point point1, Point point2, Point point3, Point point4)
{
Points = new List<Point>();
Lines = new List<Line>();
Points.Add(point1);
Points.Add(point2);
Points.Add(point3);
Points.Add(point4);
Lines.Add(new Line(point1, point2));
Lines.Add(new Line(point2, point3));
Lines.Add(new Line(point3, point4));
Lines.Add(new Line(point4, point1));
Height = new Line(point1, point4).ComputeLength();
Width = new Line(point1, point2).ComputeLength();
CenterPoint = new Point(point1.X + (Width/2), point1.Y + (Height/2));
@@ -82,27 +91,7 @@ namespace Shapes
return new Line(Points[0], Points[1]).ComputeLength();
}
public void Rotate(double degrees)
{
double radians = degrees * (Math.PI / 180);
double cosTheta = Math.Cos(radians);
double sinTheta = Math.Sin(radians);
foreach (var point in Points)
{
var oldPoint = point;
var tempX = oldPoint.X - CenterPoint.X;
var tempY = oldPoint.Y - CenterPoint.X;
var rotatedX = tempX*cosTheta - tempY*sinTheta;
var rotatedY = tempX*sinTheta + tempY*cosTheta;
point.X = rotatedX + CenterPoint.X;
point.Y = rotatedY + CenterPoint.Y;
}
}
}