+/* $Id$
+
+This file is part of the MSP Märklin suite
+Copyright © 2006-2009 Mikkosoft Productions, Mikko Rasa
+Distributed under the GPL
+*/
+
#include <cmath>
#include <GL/gl.h>
#include <msp/gl/misc.h>
+#include "libmarklin/tracktype.h"
#include "track.h"
using namespace std;
using namespace Msp;
-#include <iostream>
-
namespace Marklin {
Track3D::Track3D(Track &t, unsigned q):
build_object();
}
+void Track3D::set_color(const Msp::GL::Color &c)
+{
+ color = c;
+}
+
void Track3D::set_quality(unsigned q)
{
- quality=q;
+ quality = q;
build_object();
}
void Track3D::get_bounds(float angle, Point &minp, Point &maxp) const
{
- const Point &pos=track.get_position();
- float rot=track.get_rotation();
+ const Point &pos = track.get_position();
+ float rot = track.get_rotation();
- float c=cos(-angle);
- float s=sin(-angle);
+ float c = cos(-angle);
+ float s = sin(-angle);
- minp.x=maxp.x=c*pos.x-s*pos.y;
- minp.y=maxp.y=s*pos.x+c*pos.y;
+ minp.x = maxp.x = c*pos.x-s*pos.y;
+ minp.y = maxp.y = s*pos.x+c*pos.y;
- float c2=cos(rot-angle);
- float s2=sin(rot-angle);
+ float c2 = cos(rot-angle);
+ float s2 = sin(rot-angle);
for(vector<Point>::const_iterator i=border.begin(); i!=border.end(); ++i)
{
- float x=c*pos.x-s*pos.y + c2*i->x-s2*i->y;
- float y=s*pos.x+c*pos.y + s2*i->x+c2*i->y;
+ float x = c*pos.x-s*pos.y + c2*i->x-s2*i->y;
+ float y = s*pos.x+c*pos.y + s2*i->x+c2*i->y;
- minp.x=min(minp.x, x);
- minp.y=min(minp.y, y);
- maxp.x=max(maxp.x, x);
- maxp.y=max(maxp.y, y);
+ minp.x = min(minp.x, x);
+ minp.y = min(minp.y, y);
+ maxp.x = max(maxp.x, x);
+ maxp.y = max(maxp.y, y);
}
}
-void Track3D::render()
+void Track3D::render() const
{
- prepare_render();
+ prepare_render(true);
- glPushName((unsigned)this);
+ glPushName(reinterpret_cast<unsigned>(this));
varray.apply();
glColor4f(0.25*color.r, 0.25*color.g, 0.25*color.b, 1);
glPopMatrix();
}
-void Track3D::render_endpoints()
+void Track3D::render_endpoints() const
{
- prepare_render();
+ prepare_render(false);
- const Point &pos=track.get_position();
- const Track::EndpointSeq &endpoints=track.get_endpoints();
- for(Track::EndpointSeq::const_iterator i=endpoints.begin(); i!=endpoints.end(); ++i)
+ const vector<Endpoint> &endpoints = track.get_type().get_endpoints();
+ for(unsigned i=0; i<endpoints.size(); ++i)
{
- GL::set(GL_CULL_FACE, i->link);
- if(i->link)
+ const Endpoint &ep = endpoints[i];
+ GL::set(GL_CULL_FACE, track.get_link(i));
+ if(track.get_link(i))
glColor4f(0.5, 0, 1, 0.5);
else
glColor4f(1, 0, 0.5, 0.5);
- float c=cos(i->rot);
- float s=sin(i->rot);
+ float c = cos(ep.dir);
+ float s = sin(ep.dir);
+ float z = (i==1 ? track.get_slope() : 0);
glBegin(GL_QUADS);
- glVertex3f(i->pos.x-s*0.025, i->pos.y+c*0.025, 0);
- glVertex3f(i->pos.x+s*0.025, i->pos.y-c*0.025, 0);
- glVertex3f(i->pos.x+s*0.025, i->pos.y-c*0.025, pos.z+i->pos.z+0.02);
- glVertex3f(i->pos.x-s*0.025, i->pos.y+c*0.025, pos.z+i->pos.z+0.02);
+ glVertex3f(ep.pos.x-s*0.025, ep.pos.y+c*0.025, z);
+ glVertex3f(ep.pos.x+s*0.025, ep.pos.y-c*0.025, z);
+ glVertex3f(ep.pos.x+s*0.025, ep.pos.y-c*0.025, z+0.02);
+ glVertex3f(ep.pos.x-s*0.025, ep.pos.y+c*0.025, z+0.02);
+ glEnd();
+ }
+
+ if(abs(track.get_slope())>1e-4)
+ {
+ Point p;
+ if(track.get_slope()>0)
+ {
+ p = endpoints[1].pos;
+ p.z += track.get_slope();
+ }
+ else
+ p = endpoints[0].pos;
+ glBegin(GL_TRIANGLE_STRIP);
+ for(unsigned i=0; i<=16; ++i)
+ {
+ float c = cos(i*M_PI/8);
+ float s = sin(i*M_PI/8);
+ glNormal3f(c, s, 0);
+ glVertex3f(p.x+c*0.01, p.y+s*0.01, p.z);
+ glVertex3f(p.x+c*0.01, p.y+s*0.01, -track.get_position().z);
+ }
glEnd();
}
glPopMatrix();
}
-void Track3D::render_route(int route)
+void Track3D::render_path(int path) const
{
- prepare_render();
+ prepare_render(true);
varray.apply();
- if(route>=0 && static_cast<unsigned>(route)<route_seq.size())
- glDrawElements(GL_QUADS, route_seq[route].size(), GL_UNSIGNED_INT, &route_seq[route][0]);
+ if(path>=0 && static_cast<unsigned>(path)<path_seq.size())
+ glDrawElements(GL_QUADS, path_seq[path].size(), GL_UNSIGNED_INT, &path_seq[path][0]);
else
{
- for(unsigned i=0; i<route_seq.size(); ++i)
- glDrawElements(GL_QUADS, route_seq[i].size(), GL_UNSIGNED_INT, &route_seq[i][0]);
+ for(unsigned i=0; i<path_seq.size(); ++i)
+ glDrawElements(GL_QUADS, path_seq[i].size(), GL_UNSIGNED_INT, &path_seq[i][0]);
}
glPopMatrix();
}
-void Track3D::prepare_render()
+void Track3D::prepare_render(bool slope) const
{
- const Point &pos=track.get_position();
- float rot=track.get_rotation();
+ const Point &pos = track.get_position();
+ float rot = track.get_rotation();
glPushMatrix();
glTranslatef(pos.x, pos.y, pos.z);
glRotatef(rot*180/M_PI, 0, 0, 1);
+ if(slope)
+ glRotatef(track.get_slope()/track.get_type().get_total_length()*180/M_PI, 0, -1, 0);
}
void Track3D::build_object()
{
varray.clear();
- RefPtr<GL::VertexArrayBuilder> builder=varray.modify();
+ GL::VertexArrayBuilder builder(varray);
base_seq.clear();
rail_seq.clear();
- route_seq.clear();
- route_seq.resize(track.get_n_routes());
+ path_seq.clear();
+ path_seq.resize(track.get_type().get_n_paths());
- const Track::PartSeq &parts=track.get_parts();
- unsigned index=0;
- for(Track::PartSeq::const_iterator i=parts.begin(); i!=parts.end(); ++i)
- build_part(*i, *builder, index);
+ const vector<TrackPart> &parts = track.get_type().get_parts();
+ unsigned index = 0;
+ for(vector<TrackPart>::const_iterator i=parts.begin(); i!=parts.end(); ++i)
+ build_part(*i, builder, index);
}
-void Track3D::build_part(const Track::Part &part, GL::VertexArrayBuilder &va_builder, unsigned &base_index)
+void Track3D::build_part(const TrackPart &part, GL::VertexArrayBuilder &va_builder, unsigned &base_index)
{
static vector<Point> profile;
if(profile.empty())
profile.push_back(Point(0, -0.002, 0.012));
profile.push_back(Point(0, 0.002, 0.012));
}
- static unsigned psize=profile.size();
+ static unsigned psize = profile.size();
- const float &radius=part.radius;
- const float &x=part.x;
- const float &y=part.y;
- const float &length=part.length;
- const float &dir=part.dir;
+ unsigned nsegs = (part.radius ? static_cast<unsigned>(part.length*(1<<quality))+1 : 1);
+ float plen = part.length;
+ if(part.radius)
+ plen *= abs(part.radius);
- unsigned nsegs;
- if(radius)
+ for(unsigned i=0; i<=nsegs; ++i)
{
- nsegs=(unsigned)(part.length*(1<<quality))+1;
- Point center(x-sin(dir)*radius, y+cos(dir)*radius, 0);
- float r=fabs(radius);
- float start=((radius<0)?M_PI:0)+dir;
- float angle=(radius<0)?-length:length;
- int inv=(radius<0)?-1:1;
- for(unsigned i=0; i<=nsegs; ++i)
- {
- float a=start+i*angle/nsegs;
- float c=cos(a);
- float s=sin(a);
-
- for(unsigned j=0; j<profile.size(); ++j)
- {
- unsigned k=j&~1;
- float dy=profile[k+1].y-profile[k].y;
- float dz=profile[k+1].z-profile[k].z;
- float d=sqrt(dy*dy+dz*dz);
- va_builder.normal(s*dz/d, -c*dz/d, dy/d);
-
- Point p(center.x+s*(r-profile[j].y*inv), center.y-c*(r-profile[j].y*inv), profile[j].z+i*track.get_slope()/nsegs);
- va_builder.vertex(p.x, p.y, p.z);
- if(profile[j].z==0)
- border.push_back(p);
- }
- }
- }
- else
- {
- nsegs=1;
- float c=cos(dir);
- float s=sin(dir);
- for(unsigned i=0; i<2; ++i)
+ float a = part.dir+(part.radius ? i*plen/nsegs/part.radius : 0);
+ float c = cos(a);
+ float s = sin(a);
+ Point p = part.get_point(i*plen/nsegs);
+
+ for(unsigned j=0; j<psize; ++j)
{
- for(unsigned j=0; j<profile.size(); ++j)
- {
- unsigned k=j&~1;
- float dy=profile[k+1].y-profile[k].y;
- float dz=profile[k+1].z-profile[k].z;
- float d=sqrt(dy*dy+dz*dz);
- va_builder.normal(s*dz/d, -c*dz/d, dy/d);
-
- float len=(part.dead_end && i==1 && j>=6) ? length/2 : length;
- Point p(x+c*len*i-s*profile[j].y, y+s*len*i+c*profile[j].y, profile[j].z+i*track.get_slope());
- va_builder.vertex(p.x, p.y, p.z);
- if(profile[j].z==0)
- border.push_back(p);
- }
+ unsigned k = j&~1;
+ float dy = profile[k+1].y-profile[k].y;
+ float dz = profile[k+1].z-profile[k].z;
+ float d = sqrt(dy*dy+dz*dz);
+ va_builder.normal(s*dz/d, -c*dz/d, dy/d);
+
+ Point v(p.x+c*profile[j].x-s*profile[j].y, p.y+c*profile[j].y+s*profile[j].x, profile[j].z);
+ va_builder.vertex(v.x, v.y, v.z);
+ if(profile[j].z==0)
+ border.push_back(v);
}
}
rail_seq.push_back(base_index+(i+1)*psize+1+j*2);
rail_seq.push_back(base_index+i*psize+1+j*2);
}
- route_seq[part.route].push_back(base_index+i*psize+18);
- route_seq[part.route].push_back(base_index+(i+1)*psize+18);
- route_seq[part.route].push_back(base_index+(i+1)*psize+19);
- route_seq[part.route].push_back(base_index+i*psize+19);
+ path_seq[part.path].push_back(base_index+i*psize+18);
+ path_seq[part.path].push_back(base_index+(i+1)*psize+18);
+ path_seq[part.path].push_back(base_index+(i+1)*psize+19);
+ path_seq[part.path].push_back(base_index+i*psize+19);
}
- base_index+=(nsegs+1)*psize;
+ base_index += (nsegs+1)*psize;
}
} // namespace Marklin
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