add sample uno-files

samples/Uno/Pong.uno

@@ -0,0 +1,139 @@
+using Uno;
+using Uno.Collections;
+using Uno.Graphics;
+using Uno.Scenes;
+using Uno.Content;
+using Uno.Content.Models;
+
+namespace PONG2D
+{
+	public class Pong : Node
+	{
+		float2 _player1Pos;
+		float2 _player2Pos;
+		float2 ballPosition;
+		float2 ballVelocity;
+		float2 rectangleSize;
+		
+		Rect player1Rect;
+		Rect player2Rect;
+		Rect ballRect;
+		
+		float2 resolution = Context.VirtualResolution;
+		
+		Random random = new Random(1);
+		
+		
+		float2 Player1Pos
+		{
+			get { return _player1Pos; }
+			set
+			{
+				_player1Pos = Math.Clamp(value, float2(0, 0), resolution - rectangleSize);
+			}
+		}
+		
+		float2 Player2Pos
+		{
+			get { return _player2Pos; }
+			set
+			{
+				_player2Pos = Math.Clamp(value, float2(0, 0), resolution - rectangleSize);
+			}
+		}
+		
+		public Pong()
+		{
+			Uno.Scenes.Input.AddGlobalListener(this);
+		}
+		
+		protected override void OnInitialize()
+		{
+			base.OnInitialize();
+			UpdateValues();	
+			
+		}
+
+		void UpdateValues()
+		{
+			rectangleSize = float2(resolution.X / 80f, resolution.Y / 5f);
+			_player1Pos = float2(0f);
+			_player2Pos = float2(Context.VirtualResolution.X - rectangleSize.X, 0f);
+			
+			player1Rect = new Rect(_player1Pos, rectangleSize);
+			player2Rect = new Rect(_player2Pos, rectangleSize);
+			
+			ballPosition = float2(resolution.X * 0.5f - 10f, resolution.Y * 0.5f - 10f);
+			ballRect = new Rect(ballPosition, float2(20f));
+			
+			
+			SpwanBall();
+			
+		}
+		
+		void SpwanBall()
+		{
+			ballRect.Position = float2(resolution.X * 0.5f - 10f, resolution.Y * 0.5f - 10f);
+			ballVelocity = float2(5f, 10f) * 0.5f;
+		}
+		
+		void OnWindowResize(object sender, EventArgs args)
+		{
+			//UpdateValues();
+		}
+		
+		protected override void OnUpdate()
+		{
+			base.OnUpdate();
+			
+			var padVelocity = resolution.Y * (float)Application.Current.FrameInterval * 4f;
+			if (Input.IsKeyDown(Uno.Platform.Key.Up))
+			{
+				Player1Pos = float2(Player1Pos.X, Player1Pos.Y - padVelocity);	
+			}
+			
+			if (Input.IsKeyDown(Uno.Platform.Key.Down))
+			{
+				Player1Pos = float2(Player1Pos.X, Player1Pos.Y + padVelocity);	
+			}
+
+			if (Input.IsKeyDown(Uno.Platform.Key.W))
+			{
+				Player2Pos = float2(Player2Pos.X, Player2Pos.Y - padVelocity);	
+			}
+
+			if (Input.IsKeyDown(Uno.Platform.Key.S))
+			{
+				Player2Pos = float2(Player2Pos.X, Player2Pos.Y + padVelocity);	
+			}
+			player1Rect.Position = Player1Pos;
+			player2Rect.Position = Player2Pos;
+			
+			if (ballRect.Position.X > resolution.X || ballRect.Position.X < 0)
+			{
+				SpwanBall();
+			}
+			if (ballRect.Position.Y > resolution.Y ||
+				ballRect.Position.Y < 0)
+			{
+				ballVelocity.Y *= -1f;
+			}
+			
+			if (ballRect.Intersects(player1Rect) ||
+				ballRect.Intersects(player2Rect))
+			{
+				ballVelocity.X *= -1f;
+			}
+			
+			ballRect.Position += ballVelocity;
+			
+		}
+		
+        protected override void OnDraw()
+        {
+			Uno.Drawing.RoundedRectangle.Draw(player1Rect.Position, player1Rect.Size, float4(1f), 0);
+			Uno.Drawing.RoundedRectangle.Draw(player2Rect.Position, player2Rect.Size, float4(1f), 0);
+			Uno.Drawing.RoundedRectangle.Draw(ballRect.Position, ballRect.Size, float4(1f), 0f);
+        }
+	}
+}