]> git.tdb.fi Git - r2c2.git/blobdiff - source/3d/track.cpp
Split mesh generation from Track3D to TrackType3D
[r2c2.git] / source / 3d / track.cpp
index 1df93a29ca76a60f49904636dd7151dc682c2765..c3eb388dc8bb4a96b35a4a797319cf53db8dd949 100644 (file)
@@ -1,7 +1,7 @@
 /* $Id$
 
 This file is part of the MSP Märklin suite
-Copyright © 2006-2009 Mikkosoft Productions, Mikko Rasa
+Copyright © 2006-2010 Mikkosoft Productions, Mikko Rasa
 Distributed under the GPL
 */
 
@@ -9,60 +9,45 @@ Distributed under the GPL
 #include <GL/gl.h>
 #include <msp/gl/misc.h>
 #include "libmarklin/tracktype.h"
+#include "layout.h"
 #include "track.h"
+#include "tracktype.h"
 
 using namespace std;
 using namespace Msp;
 
 namespace Marklin {
 
-Track3D::Track3D(Track &t, unsigned q):
+Track3D::Track3D(Layout3D &l, Track &t):
+       layout(l),
        track(t),
-       color(1, 1, 1),
-       varray((GL::NORMAL3, GL::VERTEX3)),
-       quality(q)
-{
-       build_object();
-}
+       type(layout.get_catalogue().get_track(track.get_type())),
+       color(1, 1, 1)
+{ }
 
 void Track3D::set_color(const Msp::GL::Color &c)
 {
        color = c;
 }
 
-void Track3D::set_quality(unsigned 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();
-       float slope = track.get_slope();
+       type.get_bounds(angle-track.get_rotation(), minp, maxp);
 
        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.z = pos.z+min(slope, 0.0f);
-       maxp.z = pos.z+0.01+max(slope, 0.0f);
-
-       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;
+       const Point &pos = track.get_position();
+       minp.x += c*pos.x-s*pos.y;
+       maxp.x += c*pos.x-s*pos.y;
+       minp.y += s*pos.x+c*pos.y;
+       maxp.y += s*pos.x+c*pos.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);
-       }
+       float slope = track.get_slope();
+       if(slope>0)
+               maxp.z += slope;
+       else
+               minp.z += slope;
 }
 
 void Track3D::render() const
@@ -71,14 +56,7 @@ void Track3D::render() const
 
        glPushName(reinterpret_cast<unsigned>(this));
 
-       varray.apply();
-       glColor4f(0.25*color.r, 0.25*color.g, 0.25*color.b, 1);
-       glDrawElements(GL_QUADS, base_seq.size(), GL_UNSIGNED_INT, &base_seq[0]);
-       if(quality>1)
-       {
-               glColor4f(0.85*color.r, 0.85*color.g, 0.85*color.b, 1);
-               glDrawElements(GL_QUADS, rail_seq.size(), GL_UNSIGNED_INT, &rail_seq[0]);
-       }
+       type.render();
 
        glPopName();
        glPopMatrix();
@@ -139,14 +117,15 @@ void Track3D::render_path(int path) const
 {
        prepare_render(true);
 
-       varray.apply();
+       (void)path;
+       /*varray.apply();
        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<path_seq.size(); ++i)
                        glDrawElements(GL_QUADS, path_seq[i].size(), GL_UNSIGNED_INT, &path_seq[i][0]);
-       }
+       }*/
 
        glPopMatrix();
 }
@@ -163,97 +142,4 @@ void Track3D::prepare_render(bool slope) const
                glRotatef(track.get_slope()/track.get_type().get_total_length()*180/M_PI, 0, -1, 0);
 }
 
-void Track3D::build_object()
-{
-       varray.clear();
-       GL::VertexArrayBuilder builder(varray);
-
-       base_seq.clear();
-       rail_seq.clear();
-       path_seq.clear();
-       path_seq.resize(track.get_type().get_n_paths());
-
-       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 TrackPart &part, GL::VertexArrayBuilder &va_builder, unsigned &base_index)
-{
-       static vector<Point> profile;
-       if(profile.empty())
-       {
-               profile.push_back(Point(0, -0.02, 0));
-               profile.push_back(Point(0, -0.014, 0.008));
-               profile.push_back(Point(0, -0.014, 0.008));
-               profile.push_back(Point(0, 0.014, 0.008));
-               profile.push_back(Point(0, 0.014, 0.008));
-               profile.push_back(Point(0, 0.02, 0));
-               for(unsigned i=0; i<2; ++i)
-               {
-                       profile.push_back(Point(0, -0.009+i*0.017, 0.008));
-                       profile.push_back(Point(0, -0.009+i*0.017, 0.0103));
-                       profile.push_back(Point(0, -0.009+i*0.017, 0.0103));
-                       profile.push_back(Point(0, -0.008+i*0.017, 0.0103));
-                       profile.push_back(Point(0, -0.008+i*0.017, 0.0103));
-                       profile.push_back(Point(0, -0.008+i*0.017, 0.008));
-               }
-               profile.push_back(Point(0, -0.002, 0.012));
-               profile.push_back(Point(0, 0.002, 0.012));
-       }
-       static unsigned psize = profile.size();
-
-       unsigned nsegs = (part.radius ? static_cast<unsigned>(part.length*(1<<quality))+1 : 1);
-       float plen = part.length;
-       if(part.radius)
-               plen *= abs(part.radius);
-
-       for(unsigned i=0; i<=nsegs; ++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)
-               {
-                       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);
-               }
-       }
-
-       for(unsigned i=0; i<nsegs; ++i)
-       {
-               for(unsigned j=0; j<3; ++j)
-               {
-                       base_seq.push_back(base_index+i*psize+j*2);
-                       base_seq.push_back(base_index+(i+1)*psize+j*2);
-                       base_seq.push_back(base_index+(i+1)*psize+1+j*2);
-                       base_seq.push_back(base_index+i*psize+1+j*2);
-               }
-               for(unsigned j=3; j<9; ++j)
-               {
-                       rail_seq.push_back(base_index+i*psize+j*2);
-                       rail_seq.push_back(base_index+(i+1)*psize+j*2);
-                       rail_seq.push_back(base_index+(i+1)*psize+1+j*2);
-                       rail_seq.push_back(base_index+i*psize+1+j*2);
-               }
-               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;
-}
-
 } // namespace Marklin