test.cs

using System;
using System.Collections.Generic;
using System.Text;
using Sys = Cosmos.System;

namespace Test
{
    public class Point
    {
        public int X { get; set; }
        public int Y { get; set; }

        public Point(int x, int y)
        {
            X = x;
            Y = y;
        }

        public float TriangleArea(Point b, Point c)
        {
            float x1 = b.X - X;
            float y1 = b.Y - Y;

            float x2 = c.X - X;
            float y2 = c.Y - Y;

            return (x1 * y2 - x2 * y1);
        }
    }

    public class PointF
    {
        public float X { get; set; }
        public float Y { get; set; }

        public PointF(float x, float y)
        {
            X = x;
            Y = y;
        }

        public float TriangleArea(Point b, Point c)
        {
            float x1 = b.X - X;
            float y1 = b.Y - Y;

            float x2 = c.X - X;
            float y2 = c.Y - Y;

            return (x1 * y2 - x2 * y1);
        }
    }

    public class Kernel : Sys.Kernel
    {
        protected override void BeforeRun()
        {
            Console.Clear();


            var v0 = new Point(146, 186);
            var Scale = new PointF(0.022f, -0.022f);
            var Transform = new Point(0, 24);

            v0.X = (int) ((float) v0.X * Scale.X);
            v0.Y = (int) ((float) v0.Y * Scale.Y);

            v0.X += Transform.X;
            v0.Y += Transform.Y;

            Console.WriteLine($"X is {v0.X}, expected awnser is 3");
            Console.WriteLine($"Y is {v0.Y}, expected awnser is 20");
        }

        protected override void Run()
        {
        }
    }
}