X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Flibr2c2%2Flayout.cpp;h=c7dc346d61db45c652c3f553fc438c92e9f8576f;hb=f7238194310b77f21385286150295b284127b887;hp=0025ec3b5b3adcd305ebd08ec8b8a9c44b8622ac;hpb=2220ba2f11705ea9a4e480603d43ab7ed4cf5a89;p=r2c2.git

diff --git a/source/libr2c2/layout.cpp b/source/libr2c2/layout.cpp
index 0025ec3..c7dc346 100644
--- a/source/libr2c2/layout.cpp
+++ b/source/libr2c2/layout.cpp
@@ -188,12 +188,21 @@ template<typename T>
 T *Layout::pick(const Ray &ray)
 {
 	const set<Object *> &objs = objects.get();
+	T *closest = 0;
+	float distance = -1;
 	for(set<Object *>::const_iterator i=objs.begin(); i!=objs.end(); ++i)
 		if(T *t = dynamic_cast<T *>(*i))
-			if(t->collide_ray(ray))
-				return t;
+		{
+			float d = -1;
+			if(t->collide_ray(ray, &d))
+				if(!closest || d<distance)
+				{
+					closest = t;
+					distance = d;
+				}
+		}
 
-	return 0;
+	return closest;
 }
 
 template Object *Layout::pick<Object>(const Ray &);
@@ -463,6 +472,12 @@ void Layout::save_dynamic(const string &fn) const
 	IO::BufferedFile out(fn, IO::M_WRITE);
 	DataFile::Writer writer(out);
 
+	{
+		DataFile::Statement st("clock");
+		clock.save(st.sub);
+		writer.write(st);
+	}
+
 	const set<Track *> &tracks = objects.get<Track>();
 	for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 		if(unsigned taddr = (*i)->get_turnout_address())
@@ -548,6 +563,7 @@ Layout::Loader::Loader(Layout &l):
 {
 	add("base",  &Layout::base);
 	add("beamgate", &Loader::beamgate);
+	add("clock", &Loader::clock);
 	add("route", &Loader::route);
 	add("signal", &Loader::signal);
 	add("terrain", &Loader::terrain);
@@ -563,6 +579,11 @@ void Layout::Loader::beamgate()
 	load_sub(*gate);
 }
 
+void Layout::Loader::clock()
+{
+	load_sub(obj.clock);
+}
+
 void Layout::Loader::route()
 {
 	Route *rte = new Route(obj);