moving things around to merge PDE X

java/src/processing/mode/experimental/tweak/UDPTweakClient.java

@@ -0,0 +1,182 @@
+package galsasson.mode.tweak;
+
+import java.net.*;
+import java.nio.ByteBuffer;
+
+public class UDPTweakClient {
+	private DatagramSocket socket;
+	private InetAddress address;
+	private boolean initialized;
+	private int sketchPort;
+
+	static final int VAR_INT = 0;
+	static final int VAR_FLOAT = 1;
+	static final int SHUTDOWN = 0xffffffff;
+
+	public UDPTweakClient(int sketchPort)
+	{
+		this.sketchPort = sketchPort;
+		
+		try {
+			socket = new DatagramSocket();
+			// only local sketch is allowed
+			address = InetAddress.getByName("127.0.0.1");			
+			initialized = true;
+		}
+		catch (SocketException e) {
+			initialized = false;
+		}
+		catch (UnknownHostException e) {
+			socket.close();
+			initialized = false;
+		}
+		catch (SecurityException e) {
+			socket.close();
+			initialized = false;
+		}
+	}
+	
+	public void shutdown()
+	{
+		if (!initialized) {
+			return;
+		}
+		
+		// send shutdown to the sketch
+		sendShutdown();
+		initialized = false;
+	}
+	
+	public boolean sendInt(int index, int val)
+	{
+		if (!initialized) {
+			return false;
+		}
+		
+	    try {
+	    	byte[] buf = new byte[12];
+	    	ByteBuffer bb = ByteBuffer.wrap(buf);
+	    	bb.putInt(0, VAR_INT);
+	    	bb.putInt(4, index);
+	    	bb.putInt(8, val);
+	    	DatagramPacket packet = new DatagramPacket(buf, buf.length, address, sketchPort);
+	    	socket.send(packet);
+	    }
+	    catch (Exception e) {
+	    	return false;
+	    }
+	    
+	    return true;
+	}
+	
+	public boolean sendFloat(int index, float val)
+	{
+		if (!initialized) {
+			return false;
+		}
+		
+	    try {
+	    	byte[] buf = new byte[12];
+	    	ByteBuffer bb = ByteBuffer.wrap(buf);
+	    	bb.putInt(0, VAR_FLOAT);
+	    	bb.putInt(4, index);
+	    	bb.putFloat(8, val);
+	    	DatagramPacket packet = new DatagramPacket(buf, buf.length, address, sketchPort);
+	    	socket.send(packet);
+	    }
+	    catch (Exception e) {
+	    	return false;
+	    }
+	    
+	    return true;
+	}
+	
+	public boolean sendShutdown()
+	{
+		if (!initialized) {
+			return false;
+		}
+		
+	    try {
+	    	byte[] buf = new byte[12];
+	    	ByteBuffer bb = ByteBuffer.wrap(buf);
+	    	bb.putInt(0, SHUTDOWN);
+	    	DatagramPacket packet = new DatagramPacket(buf, buf.length, address, sketchPort);
+	    	socket.send(packet);
+	    }
+	    catch (Exception e) {
+	    	return false;
+	    }
+	    
+	    return true;
+	}
+	
+	public static String getServerCode(int listenPort, boolean hasInts, boolean hasFloats)
+	{
+		String serverCode = ""+
+		"class TweakModeServer extends Thread\n"+
+		"{\n"+
+		"	protected DatagramSocket socket = null;\n"+
+		"	protected boolean running = true;\n"+
+		"	final int INT_VAR = 0;\n"+
+		"	final int FLOAT_VAR = 1;\n"+
+		"	final int SHUTDOWN = 0xffffffff;\n"+
+		"	public TweakModeServer() {\n"+
+		"		this(\"TweakModeServer\");\n"+
+		"	}\n"+
+		"	public TweakModeServer(String name) {\n"+
+		"		super(name);\n"+
+		"	}\n"+
+		"	public void setup()\n"+
+		"	{\n"+
+		"		try {\n"+
+		"			socket = new DatagramSocket("+listenPort+");\n"+
+		"			socket.setSoTimeout(250);\n"+
+		"		} catch (IOException e) {\n"+
+		"			println(\"error: could not create TweakMode server socket\");\n"+
+		"		}\n"+
+		"	}\n"+
+		"	public void run()\n"+ 
+		"	{\n"+
+		"		byte[] buf = new byte[256];\n"+		
+		"		while(running)\n"+
+		"		{\n"+
+		"			try {\n"+
+		"				DatagramPacket packet = new DatagramPacket(buf, buf.length);\n"+
+		"				socket.receive(packet);\n"+        
+		"				ByteBuffer bb = ByteBuffer.wrap(buf);\n"+
+		"				int type = bb.getInt(0);\n"+
+		"				int index = bb.getInt(4);\n";
+		
+		if (hasInts) {
+			serverCode +=
+		"				if (type == INT_VAR) {\n"+
+		"					int val = bb.getInt(8);\n"+
+		"					tweakmode_int[index] = val;\n"+
+		"				}\n"+
+		"				else ";
+		}
+		if (hasFloats) {
+			serverCode +=
+		" 				if (type == FLOAT_VAR) {\n"+
+		"					float val = bb.getFloat(8);\n"+
+		"					tweakmode_float[index] = val;\n"+
+		"				}\n"+
+		"				else";
+		}
+		serverCode +=
+		"				if (type == SHUTDOWN) {\n"+
+		"					running = false;\n"+
+		"				}\n"+
+		"			} catch (SocketTimeoutException e) {\n"+
+		"				// nothing to do here just try receiving again\n"+
+		"			} catch (Exception e) {\n"+
+		"			}\n"+
+		"		}\n"+
+		"		socket.close();\n"+
+		"	}\n"+
+		"}\n\n\n";
+		
+		return serverCode;
+	}
+}