Add FanExample

src/StatePattern/FanExample/FanMotivationalExample.cs

@@ -0,0 +1,75 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace StatePattern.FanExample
+{
+    public class FanMotivationalExample
+    {   
+        public static void Run()
+        {
+            FanMotivationalContext fanContext = new FanMotivationalContext();
+
+            fanContext.PullChain();
+
+            fanContext.PullChain();
+
+            fanContext.PullChain();
+
+            fanContext.PullChain();
+
+            fanContext.PullChain();
+
+            fanContext.PullChain();
+
+            fanContext.PullChain();
+
+        }
+    }
+
+    public class FanMotivationalContext
+    {
+        private const int OFF = 0;
+
+        private const int S1 = 1;
+
+        private const int S2 = 2;
+
+        private const int S3 = 3;
+
+        private const int S4 = 4;
+
+        int state = OFF;
+
+        public void PullChain()
+        {
+            if(state == OFF)
+            {
+                Console.WriteLine("Turning TV to speed 1");
+                state = S1;
+            }
+            else if(state == S1)
+            {
+                Console.WriteLine("Turning TV to speed 2");
+                state = S2;
+            }
+            else if (state == S2)
+            {
+                Console.WriteLine("Turning TV to speed 3");
+                state = S3;
+            }
+            else if (state == S3)
+            {
+                Console.WriteLine("Turning TV to speed 4");
+                state = S4;
+            }
+            else if (state == S4)
+            {
+                Console.WriteLine("Turning TV OFF");
+                state = OFF;
+            }
+        }
+
+    }
+}