X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2F3d%2Ftracktype.cpp;h=1e20c5d8aa82f966a904970f972d79e92b0feb5b;hb=f4e02a59008181013e57cdf2a8cf1695e89b24bb;hp=94a941a983f94fcd0392d4bb0b2237d5e32f60e2;hpb=47341c72a70e6cf9d8e963705a50197bbc20a87d;p=r2c2.git

diff --git a/source/3d/tracktype.cpp b/source/3d/tracktype.cpp
index 94a941a..1e20c5d 100644
--- a/source/3d/tracktype.cpp
+++ b/source/3d/tracktype.cpp
@@ -1,6 +1,6 @@
 /* $Id$
 
-This file is part of the MSP Märklin suite
+This file is part of R²C²
 Copyright © 2010 Mikkosoft Productions, Mikko Rasa
 Distributed under the GPL
 */
@@ -16,7 +16,7 @@ using namespace Msp;
 
 namespace {
 
-bool compare_z(const Marklin::Point &p1, const Marklin::Point &p2)
+bool compare_z(const R2C2::Point &p1, const R2C2::Point &p2)
 {
 	return p1.z<p2.z;
 }
@@ -27,7 +27,7 @@ Iter graham_scan(Iter begin, Iter end)
 	// http://en.wikipedia.org/wiki/Graham_scan
 
 	// Find point with lowest X coordinate
-	Marklin::Point lowest = *begin;
+	R2C2::Point lowest = *begin;
 	for(Iter i=begin; i!=end; ++i)
 		if(i->x<lowest.x || (i->x==lowest.x && i->y>lowest.y))
 			lowest = *i;
@@ -69,7 +69,7 @@ Iter graham_scan(Iter begin, Iter end)
 
 }
 
-namespace Marklin {
+namespace R2C2 {
 
 TrackType3D::TrackType3D(const Catalogue3D &cat3d, const TrackType &tt):
 	catalogue(cat3d),
@@ -82,10 +82,12 @@ TrackType3D::TrackType3D(const Catalogue3D &cat3d, const TrackType &tt):
 	const Profile &ballast_profile = cat.get_ballast_profile();
 	const Point &ballast_min = ballast_profile.get_min_coords();
 	const Point &ballast_max = ballast_profile.get_max_coords();
+	float ballast_h = ballast_max.y-ballast_min.y;
 
 	const Profile &rail_profile = cat.get_rail_profile();
 	const Point &rail_min = rail_profile.get_min_coords();
 	const Point &rail_max = rail_profile.get_max_coords();
+	float rail_h = rail_max.y-rail_min.y;
 
 	float gauge = cat.get_gauge();
 
@@ -101,12 +103,28 @@ TrackType3D::TrackType3D(const Catalogue3D &cat3d, const TrackType &tt):
 		unsigned index = 0;
 		GL::MeshBuilder bld(rail_mesh);
 		bld.color(0.85f, 0.85f, 0.85f);
-		float y = ballast_max.y-ballast_min.y-rail_min.y;
+		float y = ballast_h-rail_min.y;
 		for(vector<TrackPart>::const_iterator i=parts.begin(); i!=parts.end(); ++i)
 			build_part(*i, rail_profile, Point(-gauge/2-rail_max.x, y), bld, index);
 		for(vector<TrackPart>::const_iterator i=parts.begin(); i!=parts.end(); ++i)
 			build_part(*i, rail_profile, Point(gauge/2-rail_min.x, y), bld, index);
 	}
+ 
+	unsigned paths = tt.get_paths();
+	for(unsigned i=0; paths; ++i, paths>>=1)
+	{
+		GL::Mesh *mesh = 0;
+		if(paths&1)
+		{
+			mesh = new GL::Mesh(GL::VERTEX3);
+			GL::MeshBuilder bld(*mesh);
+			unsigned index = 0;
+			for(vector<TrackPart>::const_iterator j=parts.begin(); j!=parts.end(); ++j)
+				if(j->get_path()==i)
+					build_part(*j, cat.get_path_profile(), Point(0, ballast_h+1.5*rail_h), bld, index);
+		}
+		path_meshes.push_back(mesh);
+	}
 
 	min_z = max_z = border.front().z;
 	for(vector<Point>::iterator i=border.begin(); i!=border.end(); ++i)
@@ -117,6 +135,12 @@ TrackType3D::TrackType3D(const Catalogue3D &cat3d, const TrackType &tt):
 	border.erase(graham_scan(border.begin(), border.end()), border.end());
 }
 
+TrackType3D::~TrackType3D()
+{
+	for(vector<GL::Mesh *>::iterator i=path_meshes.begin(); i!=path_meshes.end(); ++i)
+		delete *i;
+}
+
 void TrackType3D::get_bounds(float angle, Point &minp, Point &maxp) const
 {
 	float c = cos(-angle);
@@ -138,6 +162,13 @@ void TrackType3D::get_bounds(float angle, Point &minp, Point &maxp) const
 	}
 }
 
+const GL::Mesh &TrackType3D::get_path_mesh(unsigned p) const
+{
+	if(p>=path_meshes.size() || !path_meshes[p])
+		throw InvalidParameterValue("Invalid path");
+	return *path_meshes[p];
+}
+
 void TrackType3D::render(const GL::Tag &tag) const
 {
 	if(tag==0)
@@ -151,18 +182,15 @@ void TrackType3D::render(const GL::Tag &tag) const
 
 void TrackType3D::build_part(const TrackPart &part, const Profile &profile, const Point &offset, GL::MeshBuilder &bld, unsigned &base_index)
 {
-	unsigned nsegs = (part.radius ? static_cast<unsigned>(part.length*16)+1 : 1);
-	float plen = part.length;
-	if(part.radius)
-		plen *= abs(part.radius);
+	float plen = part.get_length();
+	unsigned nsegs = (part.is_curved() ? static_cast<unsigned>(plen*32)+1 : 1);
 
 	unsigned n_points = profile.get_n_points();
 	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 basep = part.get_point(i*plen/nsegs);
+		TrackPoint basep = part.get_point(i*plen/nsegs);
+		float c = cos(basep.dir);
+		float s = sin(basep.dir);
 
 		Point p;
 		for(unsigned j=0; j<n_points; ++j)
@@ -170,9 +198,9 @@ void TrackType3D::build_part(const TrackPart &part, const Profile &profile, cons
 			// TODO: smoothing - only duplicate vertex if the angle is large enough
 
 			p = profile.get_point(j);
-			p.z = basep.z+p.y+offset.y;
-			p.y = basep.y-c*(p.x+offset.x);
-			p.x = basep.x+s*(p.x+offset.x);
+			p.z = basep.pos.z+p.y+offset.y;
+			p.y = basep.pos.y-c*(p.x+offset.x);
+			p.x = basep.pos.x+s*(p.x+offset.x);
 			if(j>0)
 				bld.vertex(p.x, p.y, p.z);
 
@@ -202,4 +230,4 @@ void TrackType3D::build_part(const TrackPart &part, const Profile &profile, cons
 	base_index += (nsegs+1)*(n_points-1)*2;
 }
 
-} // namespace Marklin
+} // namespace R2C2