X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Flibr2c2%2Fsignal.cpp;h=0139b1fbdaa9cf73ff6a3b25cdaff0b7f63eb984;hb=1c072afdb1866ba397ee8e6155f5f68c6c7ab4da;hp=72cf235193e6a9c537e67a003ede7a221b8c7673;hpb=2910db1364914c0ab98a0f80250cc39137821577;p=r2c2.git

diff --git a/source/libr2c2/signal.cpp b/source/libr2c2/signal.cpp
index 72cf235..0139b1f 100644
--- a/source/libr2c2/signal.cpp
+++ b/source/libr2c2/signal.cpp
@@ -1,4 +1,5 @@
 #include "blockiter.h"
+#include "catalogue.h"
 #include "driver.h"
 #include "layout.h"
 #include "signal.h"
@@ -50,75 +51,82 @@ void Signal::set_address(unsigned a)
 }
 
 void Signal::set_position(const Vector &p)
+{
+	position = p;
+
+	update_location();
+}
+
+void Signal::update_location()
 {
 	const set<Track *> &tracks = layout.get_tracks();
+	float limit = layout.get_catalogue().get_gauge()*2;
 	float dist = -1;
 	for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 		if(!(*i)->get_type().is_turnout())
 		{
-			TrackPoint n = (*i)->get_nearest_point(p);
-			float d = distance(p, n.pos);
+			Snap sn;
+			sn.position = position;
+			sn.rotation = rotation;
+			(*i)->snap(sn, limit, SNAP_SEGMENT);
+			float d = distance(position, sn.position);
 			if(d<dist || dist<0)
 			{
-				position = n.pos;
-				rotation = n.dir;
 				track = *i;
 				dist = d;
 			}
 		}
 
-	normalize_location();
-}
+	block = 0;
 
-void Signal::normalize_location()
-{
-	block = &track->get_block();
+	if(!track)
+		return;
 
 	unsigned n_endpoints = track->get_type().get_endpoints().size();
 	for(unsigned j=0; j<n_endpoints; ++j)
 	{
-		float a = track->get_endpoint_direction(j)-rotation;
-		while(a<-M_PI/2)
-			a += M_PI*2;
-		while(a>M_PI*3/2)
-			a -= M_PI*2;
-		if(a>=M_PI/2)
+		Angle a = wrap_with_base(track->get_snap_node(j).rotation-rotation, -Angle::quarter_turn());
+		if(a>=Angle::quarter_turn())
 		{
 			BlockIter biter = TrackIter(track, j).block_iter();
-			entry = biter.entry();
+			if(biter)
+			{
+				block = &track->get_block();
+				entry = biter.entry();
+			}
 		}
 	}
 }
 
-void Signal::set_rotation(float r)
+void Signal::set_rotation(const Angle &r)
 {
-	float a = rotation-r;
-	while(a>M_PI*3/2)
-		a -= M_PI*2;
-	while(a<-M_PI/2)
-		a += M_PI*2;
-	if(a>=M_PI/2)
-	{
-		rotation += M_PI;
-		if(rotation>M_PI*2)
-			rotation -= M_PI*2;
-	}
+	rotation = r;
 
-	normalize_location();
+	update_location();
 }
 
-bool Signal::collide_ray(const Vector &start, const Vector &ray) const
+unsigned Signal::get_n_snap_nodes() const
 {
-	// XXX Totally hardcoded stuff, should be replaced with a geometry system
-	Vector center = position;
-	center.x += sin(rotation)*0.035;
-	center.y -= cos(rotation)*0.035;
-	Vector d(center.x-start.x, center.y-start.y);
-	float x = (d.x*ray.x+d.y*ray.y)/(ray.x*ray.x+ray.y*ray.y);
-	Vector nearest(start.x+ray.x*x-center.x, start.y+ray.y*x-center.y, start.z+ray.z*x-center.z);
-	if(nearest.z<0|| nearest.z>0.12)
-		return false;
-	return nearest.x*nearest.x+nearest.y*nearest.y<0.0001;
+	return 1;
+}
+
+Snap Signal::get_snap_node(unsigned i) const
+{
+	if(i>=1)
+		throw out_of_range("Signal::get_snap_node");
+
+	Snap sn;
+	sn.position = position;
+	sn.rotation = rotation;
+	return sn;
+}
+
+SnapType Signal::get_default_snap_type_to(const Object &other) const
+{
+	if(dynamic_cast<const Track *>(&other))
+		return SNAP_SEGMENT;
+
+	return NO_SNAP;
 }
 
 void Signal::tick(const Time::TimeDelta &)
@@ -198,7 +206,7 @@ void Signal::reset()
 void Signal::save(list<DataFile::Statement> &st) const
 {
 	st.push_back((DataFile::Statement("position"), position.x, position.y, position.z));
-	st.push_back((DataFile::Statement("rotation"), rotation));
+	st.push_back((DataFile::Statement("rotation"), rotation.radians()));
 	if(address)
 		st.push_back((DataFile::Statement("address"), address));
 }
@@ -224,7 +232,7 @@ void Signal::Loader::position(float x, float y, float z)
 
 void Signal::Loader::rotation(float d)
 {
-	obj.set_rotation(d);
+	obj.set_rotation(Angle::from_radians(d));
 }
 
 } // namespace R2C2