X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fhost.cpp;h=991e7741a04eb9a4acef1292992c707f08456b40;hb=69bcc0683c313b952981a50a6d66a6ee218ba755;hp=be24f05360d05060455228e66b6492dbb2160397;hpb=229e1d6ab66a9e987ffe3cd4a8de7c7f874f6de1;p=netvis.git

diff --git a/source/host.cpp b/source/host.cpp
index be24f05..991e774 100644
--- a/source/host.cpp
+++ b/source/host.cpp
@@ -1,3 +1,10 @@
+/* $Id$
+
+This file is part of NetVis
+Copyright @ 2008 Mikko Rasa, Mikkosoft Productions
+Distributed unter the GPL
+*/
+
 #include <cmath>
 #include <netinet/in.h>
 #include <arpa/inet.h>
@@ -14,82 +21,149 @@ using namespace Msp;
 
 Host::Host(NetVis &nv, unsigned a):
 	netvis(nv),
-	addr(a)
+	addr(a),
+	local(false),
+	active(true),
+	activity(0),
+	throttle(0)
 {
 	in_addr ina;
-	ina.s_addr=htonl(addr);
-	name=inet_ntoa(ina);
+	ina.s_addr = htonl(addr);
+	name = inet_ntoa(ina);
+	short_name = name;
+}
+
+void Host::set_name(const string &n)
+{
+	name = n;
+
+	if(local)
+	{
+		unsigned dot = name.find('.');
+		short_name = name.substr(0, dot);
+	}
+	else
+	{
+		unsigned dot = name.size();
+		for(unsigned i=0; (dot>0 && dot!=string::npos); ++i)
+		{
+			unsigned prev = name.rfind('.', dot-1);
+			if(prev+15<name.size() && i>1)
+				break;
+			dot = prev;
+		}
+
+		if(dot==string::npos)
+			short_name = name;
+		else
+			short_name = "..."+name.substr(dot+1);
+	}
+}
+
+void Host::set_local(bool l)
+{
+	local = l;
 }
 
 void Host::set_position(const Vector2 &p)
 {
-	pos=p;
+	pos = p;
 }
 
-void Host::add_connection(Connection &)
+void Host::set_active(bool a)
 {
+	active = a;
 }
 
-Connection *Host::get_connection(Host &)
+void Host::add_activity(unsigned bytes)
 {
-	return 0;
+	activity += bytes*0.06935;
+}
+
+float Host::send_packet()
+{
+	float ret = throttle;
+	if(throttle<1)
+		throttle += 0.025;
+	return ret;
 }
 
 void Host::tick(const Msp::Time::TimeDelta &td)
 {
-	float dt=td/Msp::Time::sec;
+	float dt = td/Msp::Time::sec;
+
+	activity *= pow(0.933f, dt);
+	throttle -= dt;
+	if(throttle<0)
+		throttle = 0;
 
-	const map<unsigned, Host *> &hosts=netvis.get_hosts();
-	float fx=-pos.x*0.1;
-	float fy=-pos.y*0.1;
+	if(!active)
+		return;
+
+	const map<unsigned, Host *> &hosts = netvis.get_hosts();
+	float fx = -pos.x*0.1;
+	float fy = -pos.y*0.1;
 	for(map<unsigned, Host *>::const_iterator i=hosts.begin(); i!=hosts.end(); ++i)
 	{
 		if(i->second!=this)
 		{
-			const Vector2 &other_pos=i->second->get_position();
-			float dx=other_pos.x-pos.x;
-			float dy=other_pos.y-pos.y;
-			float d2=dx*dx+dy*dy;
-			float d=sqrt(d2);
-
-			unsigned other_addr=i->second->get_address();
-			unsigned matching_bits=0;
+			const Vector2 &other_pos = i->second->get_position();
+			float dx = other_pos.x-pos.x;
+			float dy = other_pos.y-pos.y;
+			float d2 = dx*dx+dy*dy;
+			float d = sqrt(d2);
+
+			unsigned other_addr = i->second->get_address();
+			unsigned matching_bits = 0;
 			for(unsigned j=32; (j-- && !((addr^other_addr)>>j));)
 				++matching_bits;
 
-			float nearness=24-min(matching_bits, 24U);
-			float f=10000.0*(1.0/(60+nearness*15)-1.0/d);
+			float optimal_dist = 100+(24-min(matching_bits, 24U))*12;
+			float f = 5000.0*(1.0/optimal_dist-1.0/d);
 
-			fx+=dx/d*f;
-			fy+=dy/d*f;
+			fx += dx/d*f;
+			fy += dy/d*f;
 		}
 	}
 
 	if(fx<-4 || fx>4)
-		pos.x+=fx*dt;
+		pos.x += fx*dt;
 	if(fy<-4 || fy>4)
-		pos.y+=fy*dt;
+		pos.y += fy*dt;
 }
 
 void Host::render() const
 {
+	if(!active)
+		return;
+
 	GL::push_matrix();
 	GL::translate(static_cast<int>(pos.x), static_cast<int>(pos.y), 0);
 
 	GL::Immediate imm((GL::COLOR4_UBYTE, GL::VERTEX2));
 	imm.begin(GL::QUADS);
-	imm.color(1.0f, 1.0f, 1.0f, 1.0f);
+	imm.color(1.0f, 1.0f, 1.0f, max(min(static_cast<float>(activity/10000), 1.0f), 0.2f));
 	imm.vertex(-5, -5);
 	imm.vertex(5, -5);
 	imm.vertex(5, 5);
 	imm.vertex(-5, 5);
 	imm.end();
 
-	const GL::Font &font=netvis.get_font();
-	GL::translate(-static_cast<int>(font.get_string_width(name)*5), 6, 0);
+	GL::pop_matrix();
+}
+
+void Host::render_label() const
+{
+	if(!active)
+		return;
+
+	const GL::Font &font = netvis.get_font();
+
+	GL::push_matrix();
+	GL::translate(static_cast<int>(pos.x)-static_cast<int>(font.get_string_width(short_name)*5), static_cast<int>(pos.y)+6, 0);
 	GL::scale_uniform(10);
-	font.draw_string(name);
-	GL::Texture::unbind();
+
+	font.draw_string(short_name);
 
 	GL::pop_matrix();
 }