From 8c22238f267ebf30057afa2ba9fa5773cf2ce197 Mon Sep 17 00:00:00 2001
From: Kirill Vilkov <wide.wrd@gmail.com>
Date: Wed, 18 Nov 2015 12:52:54 +0300
Subject: [PATCH 1/2] double bufferization

---
 plugins/LocalTestRendererListener.java | 28 ++++++++++++++++----------
 1 file changed, 17 insertions(+), 11 deletions(-)

diff --git a/plugins/LocalTestRendererListener.java b/plugins/LocalTestRendererListener.java
index 19bdb02..74af8bc 100644
--- a/plugins/LocalTestRendererListener.java
+++ b/plugins/LocalTestRendererListener.java
@@ -117,8 +117,7 @@ private final class ThreadListener extends Thread
     	public static final String END_POST = "end post";
 
     	private ServerSocket socket;
-    	private ArrayList<Message> messagesPre, messagesPost;
-    	private boolean readyPre, readyPost;
+    	private ArrayList<Message> messagesPre, messagesPost, lastMessagesPre, lastMessagesPost;
     	private int queue;
     	private Lock lock;
     	public ThreadListener(int port) throws IOException
@@ -126,7 +125,8 @@ public ThreadListener(int port) throws IOException
     		socket = new ServerSocket(port);
     		messagesPre = new ArrayList<Message>();
     		messagesPost = new ArrayList<Message>();
-    		readyPre = readyPost = false;
+            lastMessagesPre = new ArrayList<Message>();
+            lastMessagesPost = new ArrayList<Message>();
     		queue = 0;
     		lock = new ReentrantLock();
     	}
@@ -151,24 +151,30 @@ public void run()
 					lock.lock();
 	    			if (line.equals(BEGIN_PRE))
 	    			{
-	    	    		readyPre = false;
+                        // swap lists
+                        ArrayList<Message> tmp = lastMessagesPre;
+                        lastMessagesPre = messagesPre;
+                        messagesPre = tmp;
+
 	    	    		messagesPre.clear();
 	    	    		queue = -1;
 	    			}
 	    			else if (line.equals(END_PRE))
 	    			{
-	    				readyPre = true;
 	    				queue = 0;
 	    			}
 	    			else if (line.equals(BEGIN_POST))
 	    			{
-	    				readyPost = false;
+                        // swap lists
+                        ArrayList<Message> tmp = lastMessagesPost;
+                        lastMessagesPost = messagesPost;
+                        messagesPost = tmp;
+
 	    				messagesPost.clear();
 	    				queue = 1;
 	    			}
 	    			else if (line.equals(END_POST))
 	    			{
-	    				readyPost = true;
 	    				queue = 0;
 	    			}
 	    			else if (queue != 0)
@@ -206,13 +212,13 @@ public void draw(Graphics graphics, LocalTestRendererListener listner, boolean i
 		{
 			ArrayList<Message> messages;
 			lock.lock();
-			if (isPre && readyPre)
+			if (isPre)
 			{
-				messages = messagesPre;
+				messages = lastMessagesPre;
 			}
-			else if (!isPre && readyPost)
+			else if (!isPre)
 			{
-				messages = messagesPost;
+				messages = lastMessagesPost;
 			}
 			else
 			{

From 81d0e73e90aea2be247266cdf5bc0e0b26ce3d53 Mon Sep 17 00:00:00 2001
From: Kirill Vilkov <wide.wrd@gmail.com>
Date: Wed, 18 Nov 2015 13:04:19 +0300
Subject: [PATCH 2/2] csharp client

---
 clients/csharp/Debug.cs | 83 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 clients/csharp/Debug.cs

diff --git a/clients/csharp/Debug.cs b/clients/csharp/Debug.cs
new file mode 100644
index 0000000..0712f51
--- /dev/null
+++ b/clients/csharp/Debug.cs
@@ -0,0 +1,83 @@
+using System;
+using System.Net.Sockets;
+using System.IO;
+using System.Text;
+
+namespace Com.CodeGame.CodeRacing2015.DevKit.CSharpCgdk {
+
+	// цвет нужно задавать hex-числом, например 0xABCDEF, AB - red, CD - green, EF - blue, каждый цвет - число из двух hex-цифр в диапазоне от 00 до FF
+
+	public struct Debug {
+		
+		private static TcpClient client;
+		private static StreamWriter writer;
+
+		public static void connect(string host, int port) {
+			client = new TcpClient(host, port);
+		}
+
+		public static void disconnect() {
+			client.Close();
+		}
+
+		private static void sendCommand(string command) {
+			if (client != null) {
+				if (writer == null) {
+					writer = new StreamWriter(client.GetStream (), Encoding.ASCII);
+				}
+				writer.WriteLine(command);
+			}
+			System.Console.WriteLine(command);
+		}
+
+		public static void beginPre() {
+			sendCommand("begin pre");
+		}
+
+		public static void beginPost() {
+			sendCommand("begin post");
+		}
+	
+		public static void endPre() {
+			sendCommand("end pre");
+		}
+
+		public static void endPost() {
+			sendCommand("end post");
+		}
+
+		private static string encodeColor(int color) {
+			int red = (color & 0xFF0000) >> 16;
+			int green = (color & 0x00FF00) >> 8;
+			int blue = color & 0x0000FF;
+
+			return String.Format("{0} {1} {2}", (double)red / 256.0, (double)green / 256.0, (double)blue / 256.0);
+		}
+
+		public static void circle(double x, double y, double radius, int color) {
+			sendCommand(String.Format("circle {0} {1} {2} {3}", x, y, radius, encodeColor(color)));
+		}
+
+		public static void circle(double x, double y, double radius, int color) {
+			sendCommand(String.Format("fill_circle {0} {1} {2} {3}", x, y, radius, encodeColor(color)));
+		}
+
+		public static void rect(double x1, double y1, double x2, double y2, int color) {
+			sendCommand(String.Format("rect {0} {1} {2} {3} {4}", x1, y1, x2, y2, encodeColor(color)));
+		}
+
+		public static void fillRect(double x1, double y1, double x2, double y2, int color) {
+			sendCommand(String.Format("fill_rect {0} {1} {2} {3} {4}", x1, y1, x2, y2, encodeColor(color)));
+		}
+
+		public static void line(double x1, double y1, double x2, double y2, int color) {
+			sendCommand(String.Format("line {0} {1} {2} {3} {4}", x1, y1, x2, y2, encodeColor(color)));
+		}
+
+		public static void print(double x, double y, string msg, int color = 0) {
+			sendCommand(String.Format("text {0} {1} {2} {3}", x, y, msg, encodeColor(color)));
+		}
+	}
+
+}
+