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Emne 3/Trafikklys/Trafikklys/Demo1/Demo1.cs

@@ -0,0 +1,39 @@
+namespace Trafikklys.Demo1;
+
+internal class Demo1
+{
+    public static void Run()
+    {
+        var red = true;
+        var yellow = false;
+        var green = false;
+
+        while (true)
+        {
+            Console.Clear();
+            TrafikklysKonsoll.Show(red, yellow, green);
+            if (red && !yellow)
+            {
+                yellow = true;
+            }
+            else if (red)
+            {
+                red = false;
+                yellow = false;
+                green = true;
+            }
+            else if (green)
+            {
+                green = false;
+                yellow = true;
+            }
+            else if (yellow)
+            {
+                yellow = false;
+                red = true;
+            }
+
+            Console.ReadKey(true);
+        }
+    }
+}

Emne 3/Trafikklys/Trafikklys/Program.cs

@@ -1 +1,3 @@
-
+using Trafikklys.Demo1;
+
+Demo1.Run();

Emne 3/Trafikklys/Trafikklys/TrafikklysKonsoll.cs

@@ -0,0 +1,31 @@
+using System.Text;
+namespace Trafikklys;
+
+internal class TrafikklysKonsoll
+{
+    public static void Show(bool red, bool yellow, bool green)
+    {
+        Console.OutputEncoding = Encoding.UTF8;
+        Console.Clear();
+        Console.ForegroundColor = ConsoleColor.Gray;
+        //Console.WriteLine("\u250f\u2501\u2513");
+        Console.WriteLine("┏━┓");
+        DrawLine(red ? ConsoleColor.Red : ConsoleColor.Black);
+        DrawLine(yellow ? ConsoleColor.Yellow : ConsoleColor.Black);
+        DrawLine(green ? ConsoleColor.Green : ConsoleColor.Black);
+        Console.WriteLine("┗━┛");
+        //Console.WriteLine("\u2517\u2501\u251b");
+    }
+
+    private static void DrawLine(ConsoleColor color)
+    {
+        Console.ForegroundColor = ConsoleColor.Gray;
+        Console.Write("┃");
+        //Console.Write("\u2503");
+        Console.ForegroundColor = color;
+        Console.Write("O");
+        Console.ForegroundColor = ConsoleColor.Gray;
+        Console.WriteLine("┃");
+        //Console.Write("\u2503");
+    }
+}