Lesson 5

Snake/Point.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Snake
+{
+    class Point
+    {
+        //private int x;
+        //private int y;
+        //  Временно делаем поля открытыми
+        public int x;
+        public int y;
+        private char sym;
+
+        public Point()
+        {
+
+        }
+
+        public Point(int x, int y, char sym)
+        {
+            this.x = x;
+            this.y = y;
+            this.sym = sym;
+        }
+
+        public void Draw()
+        {
+            Console.SetCursorPosition(x, y);
+            Console.Write(sym);
+        }
+    }
+
+}

Snake/Program.cs

@@ -1,17 +1,62 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace Snake
 {
     class Program
     {
         static void Main(string[] args)
         {
-            Console.WriteLine("Hello World!");
+
+            Point p1 = new Point(1, 3, '*');
+            p1.Draw();
+
+            Point p2 = new Point(4, 5, '#');
+            p2.Draw();
+
+            int x = 1;
+            Func1(x);
+            Console.WriteLine($"Func1 x={x}");
+
+            Func2(x);
+            Console.WriteLine($"Func2 x={x}");
+
+            Func3(x);
+            Console.WriteLine($"Func3 x={x}");
+
+            Move(p1, 10, 10);
+            Console.WriteLine($"Move(p1, 10, 10) p1.x = {p1.x}, p1.y = {p1.y}");
+
+            Reset(p2);
+            Console.WriteLine($"Reset(p2) p2.x = {p2.x}, p2.y = {p2.y}");
+
             Console.ReadKey();
         }
+
+        private static void Reset(Point p)
+        {
+            p = new Point();
+            //  Здесь переменная p2 останется без изменений.
+        }
+
+        private static void Move(Point p, int dx, int dy)
+        {
+            p.x = p.x + dx;
+            p.y = p.y + dy;
+        }
+
+        private static void Func3(int x)
+        {
+            x++;
+        }
+
+        private static void Func2(int val)
+        {
+            val++;
+        }
+
+        private static void Func1(int x)
+        {
+
+        }
     }
 }

Snake/Snake.csproj

@@ -43,6 +43,7 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Point.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>