static void Main(string[] args)
{
List <Figure> figures = new List <Figure>();
int value = -1;
while (value != 0)
{
Console.WriteLine("Select a command:" +
"\n1.Create new figure" +
"\n2.Show all figures" +
"\n3.Delete all figures" +
"\n4.EXIT\n");
string input = Console.ReadLine();
bool result = int.TryParse(input, out value);
if (result)
{
}
else
{
Console.WriteLine("Invalid value entered\n");
value = -1;
}
switch (value)
{
case -1:
break;
case 1:
{
Console.WriteLine("\nSelect a figure:" +
"\n1.Line" +
"\n2.Circle" +
"\n3.Ring" +
"\n4.Rectangle" +
"\n5.Square" +
"\n6.Triangle\n");
input = Console.ReadLine();
result = int.TryParse(input, out value);
if (result)
{
}
else
{
Console.WriteLine("Invalid value entered\n");
value = -1;
}
switch (value)
{
case -1:
break;
case 1:
{
Figure line = CreateLine();
figures.Add(line);
Console.WriteLine("\nFigure LINE added!\n");
}
break;
case 2:
{
double centerX, centerY, radius;
Console.WriteLine("\nCircle:\n" +
"Enter the center coordinates");
Console.Write("X: ");
centerX = double.Parse(Console.ReadLine());
Console.Write("\nY: ");
centerY = double.Parse(Console.ReadLine());
Console.Write("\nEnter radius: ");
radius = double.Parse(Console.ReadLine());
if (radius < 0)
{
Console.WriteLine("Invalid value\n");
break;
}
Figure circle = new Circle(centerX, centerY, radius);
figures.Add(circle);
Console.WriteLine("\nFigure CIRCLE added!\n");
}
break;
case 3:
{
double centerX, centerY, nouterRadius, innerRadius;
Console.WriteLine("\nRing:\n" +
"Enter the center coordinates");
Console.Write("X: ");
centerX = double.Parse(Console.ReadLine());
Console.Write("\nY: ");
centerY = double.Parse(Console.ReadLine());
Console.Write("\nEnter nouter radius: ");
nouterRadius = double.Parse(Console.ReadLine());
if (nouterRadius < 0)
{
Console.WriteLine("Invalid value\n");
break;
}
Console.Write("Enter inner radius: ");
innerRadius = double.Parse(Console.ReadLine());
if (innerRadius < 0)
{
Console.WriteLine("Invalid value\n");
break;
}
Figure ring = new Ring(centerX, centerY, nouterRadius, innerRadius);
figures.Add(ring);
Console.WriteLine("\nFigure RING added!\n");
}
break;
// в таких фигурах как квадрат, прямоугольник и треугольник, координаты точек служат не для закрепления их в пространстве, а просто для вычисления сторон
//для закрепления в пространве(на листе бумаги) служат координаты центра фигуры.
case 4:
{
double centerX, centerY;
Console.WriteLine("\nRectangle:\n" +
"Enter the center coordinates");
Console.Write("X: ");
centerX = double.Parse(Console.ReadLine());
Console.Write("\nY: ");
centerY = double.Parse(Console.ReadLine());
Console.Write("\nLength calculate side A");
Line sideA = CreateLine();
Console.Write("\nLength calculate side B");
Line sideB = CreateLine();
Figure rectangle = new Rectangle(centerX, centerY, sideA, sideB);
figures.Add(rectangle);
Console.WriteLine("\nFigure RECTANGLE added!\n");
}
break;
case 5:
{
double centerX, centerY;
Console.WriteLine("\nSquare:\n" +
"Enter the center coordinates");
Console.Write("X: ");
centerX = double.Parse(Console.ReadLine());
Console.Write("\nY: ");
centerY = double.Parse(Console.ReadLine());
Console.Write("\nLength calculate side");
Line sideA = CreateLine();
Figure square = new Square(centerX, centerY, sideA);
figures.Add(square);
Console.WriteLine("\nFigure SQUARE added!\n");
}
break;
case 6:
{
double centerX, centerY;
Console.WriteLine("\nTriangle:\n" +
"Enter the center coordinates");
Console.Write("X: ");
centerX = double.Parse(Console.ReadLine());
Console.Write("\nY: ");
centerY = double.Parse(Console.ReadLine());
Console.Write("\nLength calculate side A");
Line sideA = CreateLine();
Console.Write("\nLength calculate side B");
Line sideB = CreateLine();
Console.Write("\nLength calculate side C");
Line sideC = CreateLine();
Figure triangle = new Triangle(centerX, centerY, sideA, sideB, sideC);
figures.Add(triangle);
Console.WriteLine("\nFigure TRIANGLE added!\n");
}
break;
default:
break;
}
}
break;
case 2:
{
if (figures.Count > 0)
{
foreach (var item in figures)
{
item.Show();
}
}
else
{
Console.WriteLine("\nIS EMPTY:(\n");
}
}
break;
case 3:
{
if (figures.Count() > 0)
{
figures = null;
figures = new List <Figure>();
Console.WriteLine("\nALL FIGURES DELETED!\n");
}
else
{
Console.WriteLine("\nIS EMPTY:(\n");
}
}
break;
case 4:
{
value = 0;
}
break;
default:
Console.WriteLine("Invalid value\n");
value = -1;
break;
}
}
}