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[r2c2.git] / source / libmarklin / track.cpp
index 61f0d350e60f31e6af3ef0e432c23970dcaeece5..030af70bc85fd1d2e667b4e47a24830a7ac915ea 100644 (file)
 /* $Id$
 
 This file is part of the MSP Märklin suite
-Copyright © 2006-2008 Mikkosoft Productions, Mikko Rasa
+Copyright © 2006-2010  Mikkosoft Productions, Mikko Rasa
 Distributed under the GPL
 */
 
 #include <cmath>
+#include "driver.h"
+#include "layout.h"
 #include "track.h"
 #include "tracktype.h"
 
 using namespace std;
 using namespace Msp;
 
-#include <iostream>
-
 namespace Marklin {
 
-Track::Track(const TrackType &t):
+Track::Track(Layout &l, const TrackType &t):
+       layout(l),
        type(t),
        rot(0),
        slope(0),
        flex(false),
        turnout_id(0),
        sensor_id(0),
-       links(t.get_endpoints().size())
-{ }
+       links(t.get_endpoints().size()),
+       active_path(0)
+{
+       layout.add_track(*this);
+
+       if(layout.has_driver())
+               layout.get_driver().signal_turnout.connect(sigc::mem_fun(this, &Track::turnout_event));
+
+       for(unsigned paths = type.get_paths(); !(paths&1); ++active_path, paths>>=1) ;
+}
 
 Track::~Track()
 {
        break_links();
+       layout.remove_track(*this);
 }
 
 void Track::set_position(const Point &p)
 {
-       pos=p;
+       pos = p;
 }
 
 void Track::set_rotation(float r)
 {
-       rot=r;
+       rot = r;
        while(rot<0)
-               rot+=M_PI*2;
+               rot += M_PI*2;
        while(rot>M_PI*2)
-               rot-=M_PI*2;
+               rot -= M_PI*2;
 }
 
 void Track::set_slope(float s)
 {
-       if(links.size()!=2) return;
+       if(links.size()!=2)
+               return;
 
-       slope=s;
+       slope = s;
 }
 
 void Track::set_flex(bool f)
 {
-       flex=f;
+       flex = f;
+}
+
+void Track::check_slope()
+{
+       if(links.size()!=2)
+               return;
+
+       if(links[0] && links[1])
+       {
+               Point epp0 = links[0]->get_endpoint_position(links[0]->get_endpoint_by_link(*this));
+               Point epp1 = links[1]->get_endpoint_position(links[1]->get_endpoint_by_link(*this));
+               pos.z = epp0.z;
+               slope = epp1.z-pos.z;
+       }
+       else
+       {
+               slope = 0;
+               if(links[0])
+               {
+                       Point epp = links[0]->get_endpoint_position(links[0]->get_endpoint_by_link(*this));
+                       pos.z = epp.z;
+               }
+               else if(links[1])
+               {
+                       Point epp = links[1]->get_endpoint_position(links[1]->get_endpoint_by_link(*this));
+                       pos.z = epp.z;
+               }
+       }
 }
 
 void Track::set_turnout_id(unsigned i)
 {
-       turnout_id=i;
+       if(!type.is_turnout())
+               throw InvalidState("Not a turnout");
+
+       turnout_id = i;
+       layout.create_blocks(*this);
+       if(layout.has_driver() && turnout_id)
+       {
+               layout.get_driver().add_turnout(turnout_id);
+               if(type.is_double_address())
+                       layout.get_driver().add_turnout(turnout_id+1);
+       }
 }
 
 void Track::set_sensor_id(unsigned i)
 {
-       sensor_id=i;
+       if(type.is_turnout())
+               throw InvalidState("Can't set sensor on a turnout");
+
+       sensor_id = i;
+       layout.create_blocks(*this);
+       if(layout.has_driver() && sensor_id)
+               layout.get_driver().add_sensor(sensor_id);
+}
+
+void Track::set_active_path(unsigned p)
+{
+       if(!turnout_id)
+               throw InvalidState("Not a turnout");
+       if(!(type.get_paths()&(1<<p)))
+               throw InvalidParameterValue("Invalid path");
+
+       layout.get_driver().set_turnout(turnout_id, p&1);
+       if(type.get_n_paths()>2)
+               layout.get_driver().set_turnout(turnout_id+1, p&2);
 }
 
 int Track::get_endpoint_by_link(const Track &other) const
@@ -78,61 +145,67 @@ int Track::get_endpoint_by_link(const Track &other) const
 
 Point Track::get_endpoint_position(unsigned epi) const
 {
-       const vector<Endpoint> &eps=type.get_endpoints();
+       const vector<Endpoint> &eps = type.get_endpoints();
        if(epi>=eps.size())
                throw InvalidParameterValue("Endpoint index out of range");
 
-       const Endpoint &ep=eps[epi];
+       const Endpoint &ep = eps[epi];
 
-       float c=cos(rot);
-       float s=sin(rot);
+       float c = cos(rot);
+       float s = sin(rot);
 
-       Point p(pos.x+c*ep.x-s*ep.y, pos.y+s*ep.x+c*ep.y, pos.z);
+       Point p(pos.x+c*ep.pos.x-s*ep.pos.y, pos.y+s*ep.pos.x+c*ep.pos.y, pos.z);
        if(eps.size()==2 && epi==1)
-               p.z+=slope;
+               p.z += slope;
        return p;
 }
 
 float Track::get_endpoint_direction(unsigned epi) const
 {
-       const vector<Endpoint> &eps=type.get_endpoints();
+       const vector<Endpoint> &eps = type.get_endpoints();
        if(epi>=eps.size())
                throw InvalidParameterValue("Endpoint index out of range");
 
-       const Endpoint &ep=eps[epi];
+       const Endpoint &ep = eps[epi];
 
        return rot+ep.dir;
 }
 
 bool Track::snap_to(Track &other, bool link)
 {
-       float limit=(link && !flex) ? 1e-6 : 1e-4;
-       const vector<Endpoint> &eps=type.get_endpoints();
-       const vector<Endpoint> &other_eps=other.get_type().get_endpoints();
+       float limit = (link && !flex) ? 1e-6 : 1e-4;
+       const vector<Endpoint> &eps = type.get_endpoints();
+       const vector<Endpoint> &other_eps = other.get_type().get_endpoints();
 
        for(unsigned i=0; i<eps.size(); ++i)
        {
-               Point epp=get_endpoint_position(i);
+               Point epp = get_endpoint_position(i);
 
                for(unsigned j=0; j<other_eps.size(); ++j)
                {
                        if(other.get_link(j))
                                continue;
 
-                       Point epp2=other.get_endpoint_position(j);
-                       float dx=epp2.x-epp.x;
-                       float dy=epp2.y-epp.y;
+                       Point epp2 = other.get_endpoint_position(j);
+                       float dx = epp2.x-epp.x;
+                       float dy = epp2.y-epp.y;
                        if(dx*dx+dy*dy<limit)
                        {
                                set_rotation(other.rot+other_eps[j].dir-eps[i].dir+M_PI);
-                               set_position(Point(epp2.x-(eps[i].x*cos(rot)-eps[i].y*sin(rot)), epp2.y-(eps[i].y*cos(rot)+eps[i].x*sin(rot)), epp2.z));
+                               Point p(epp2.x-(eps[i].pos.x*cos(rot)-eps[i].pos.y*sin(rot)),
+                                       epp2.y-(eps[i].pos.y*cos(rot)+eps[i].pos.x*sin(rot)),
+                                       epp2.z);
+                               if(eps.size()==2 && i==1)
+                                       p.z -= slope;
+                               set_position(p);
 
                                if(link)
                                {
                                        if(links[i])
                                                break_link(*links[i]);
-                                       links[i]=&other;
-                                       other.links[j]=this;
+                                       links[i] = &other;
+                                       other.links[j] = this;
+                                       layout.create_blocks(*this);
                                }
 
                                return true;
@@ -145,17 +218,17 @@ bool Track::snap_to(Track &other, bool link)
 
 bool Track::snap(Point &pt, float &d) const
 {
-       const vector<Endpoint> &eps=type.get_endpoints();
+       const vector<Endpoint> &eps = type.get_endpoints();
 
        for(unsigned i=0; i<eps.size(); ++i)
        {
-               Point epp=get_endpoint_position(i);
-               float dx=pt.x-epp.x;
-               float dy=pt.y-epp.y;
+               Point epp = get_endpoint_position(i);
+               float dx = pt.x-epp.x;
+               float dy = pt.y-epp.y;
                if(dx*dx+dy*dy<1e-4)
                {
-                       pt=epp;
-                       d=rot+eps[i].dir;
+                       pt = epp;
+                       d = rot+eps[i].dir;
                        return true;
                }
        }
@@ -168,8 +241,10 @@ void Track::break_link(Track &trk)
        for(vector<Track *>::iterator i=links.begin(); i!=links.end(); ++i)
                if(*i==&trk)
                {
-                       *i=0;
+                       *i = 0;
                        trk.break_link(*this);
+                       // XXX Creates the blocks twice
+                       layout.create_blocks(*this);
                        return;
                }
 }
@@ -179,7 +254,7 @@ void Track::break_links()
        for(vector<Track *>::iterator i=links.begin(); i!=links.end(); ++i)
                if(Track *trk=*i)
                {
-                       *i=0;
+                       *i = 0;
                        trk->break_link(*this);
                }
 }
@@ -192,89 +267,113 @@ Track *Track::get_link(unsigned i) const
        return links[i];
 }
 
-void Track::check_slope()
+unsigned Track::traverse(unsigned i, unsigned path) const
 {
-       if(links.size()!=2)
-               return;
-
-       if(links[0] && links[1])
-       {
-               Point epp0=links[0]->get_endpoint_position(links[0]->get_endpoint_by_link(*this));
-               Point epp1=links[1]->get_endpoint_position(links[1]->get_endpoint_by_link(*this));
-               pos.z=epp0.z;
-               slope=epp1.z-pos.z;
-       }
-       else
-       {
-               slope=0;
-               if(links[0])
-               {
-                       Point epp=links[0]->get_endpoint_position(links[0]->get_endpoint_by_link(*this));
-                       pos.z=epp.z;
-               }
-               else if(links[1])
-               {
-                       Point epp=links[1]->get_endpoint_position(links[1]->get_endpoint_by_link(*this));
-                       pos.z=epp.z;
-               }
-       }
-}
-
-int Track::traverse(unsigned i, unsigned route) const
-{
-       const vector<Endpoint> &eps=type.get_endpoints();
+       const vector<Endpoint> &eps = type.get_endpoints();
        if(i>=eps.size())
                throw InvalidParameterValue("Endpoint index out of range");
 
-       const Endpoint &ep=eps[i];
+       const Endpoint &ep = eps[i];
        
-       if(ep.routes&(1<<route))
+       if(ep.paths&(1<<path))
        {
-               // Find the other endpoint for this route
+               // Find the other endpoint for this path
                for(unsigned j=0; j<eps.size(); ++j)
-                       if((eps[j].routes&(1<<route)) && j!=i)
+                       if((eps[j].paths&(1<<path)) && j!=i)
                                return j;
        }
        else
        {
-               // Find an endpoint that's connected to this one and has the requested route
+               // Find an endpoint that's connected to this one and has the requested path
                for(unsigned j=0; j<eps.size(); ++j)
-                       if((eps[j].routes&(1<<route)) && (eps[j].routes&ep.routes))
+                       if((eps[j].paths&(1<<path)) && (eps[j].paths&ep.paths))
                                return j;
        }
 
-       return -1;
+       throw Exception("Track endpoint did not have a counterpart");
 }
 
-Track *Track::copy() const
+TrackPoint Track::get_point(unsigned epi, unsigned path, float d) const
 {
-       Track *trk=new Track(type);
-       trk->set_position(pos);
-       trk->set_rotation(rot);
-       trk->set_slope(slope);
-       trk->set_flex(flex);
+       TrackPoint p = type.get_point(epi, path, d);
+       float c = cos(rot);
+       float s = sin(rot);
+
+       p.pos = Point(pos.x+c*p.pos.x-s*p.pos.y, pos.y+s*p.pos.x+c*p.pos.y, 0);
+       p.dir += rot;
+       if(type.get_endpoints().size()==2)
+       {
+               float len = type.get_path_length(path);
+               float grade = slope/len;
+               if(epi==0)
+               {
+                       p.pos.z = pos.z+grade*d;
+                       p.grade = grade;
+               }
+               else
+               {
+                       p.pos.z = pos.z+slope-grade*d;
+                       p.grade = -grade;
+               }
+       }
 
-       return trk;
+       return p;
+}
+
+TrackPoint Track::get_point(unsigned epi, float d) const
+{
+       return get_point(epi, active_path, d);
+}
+
+void Track::save(list<DataFile::Statement> &st) const
+{
+       st.push_back((DataFile::Statement("position"), pos.x, pos.y, pos.z));
+       st.push_back((DataFile::Statement("rotation"), rot));
+       st.push_back((DataFile::Statement("slope"), slope));
+       if(turnout_id)
+               st.push_back((DataFile::Statement("turnout_id"), turnout_id));
+       if(sensor_id)
+               st.push_back((DataFile::Statement("sensor_id"), sensor_id));
+       if(flex)
+               st.push_back((DataFile::Statement("flex"), true));
+}
+
+void Track::turnout_event(unsigned addr, bool state)
+{
+       if(!turnout_id)
+               return;
+
+       if(addr==turnout_id)
+               active_path = (active_path&2) | (state ? 1 : 0);
+       else if(type.is_double_address() && addr==turnout_id+1)
+               active_path = (active_path&1) | (state ? 2 : 0);
 }
 
-/*******************
-** Track::Loader
-*/
 
 Track::Loader::Loader(Track &t):
-       track(t)
+       DataFile::BasicLoader<Track>(t)
 {
-       add("position",    &Loader::position);
-       add("rotation",    &Track::rot);
-       add("slope",       &Track::slope);
-       add("turnout_id",  &Track::turnout_id);
-       add("sensor_id",   &Track::sensor_id);
-       add("flex",        &Track::flex);
+       add("position",   &Loader::position);
+       add("rotation",   &Track::rot);
+       add("slope",      &Track::slope);
+       add("turnout_id", &Loader::turnout_id);
+       add("sensor_id",  &Loader::sensor_id);
+       add("flex",       &Track::flex);
 }
 
 void Track::Loader::position(float x, float y, float z)
 {
-       track.pos=Point(x, y, z);
+       obj.pos = Point(x, y, z);
+}
+
+void Track::Loader::sensor_id(unsigned id)
+{
+       obj.set_sensor_id(id);
+}
+
+void Track::Loader::turnout_id(unsigned id)
+{
+       obj.set_turnout_id(id);
 }
 
 } // namespace Marklin