X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2F3d%2Ftracktype.cpp;h=f6b3d5fb8b053635cbb1732c9885860f59cc61e6;hb=5116fff210cdc3f0fbdae13046cc60450aad5e8f;hp=e402c89c5f597823e6daabde9943ef27b30d72bb;hpb=7fac28fcb5afb17eff7c459474e4cf884a02719c;p=r2c2.git

diff --git a/source/3d/tracktype.cpp b/source/3d/tracktype.cpp
index e402c89..f6b3d5f 100644
--- a/source/3d/tracktype.cpp
+++ b/source/3d/tracktype.cpp
@@ -57,28 +57,45 @@ TrackType3D::TrackType3D(Catalogue3D &cat3d, const TrackType &tt):
 
 		own_data = true;
 	}
- 
+
 	unsigned paths = tt.get_paths();
-	for(unsigned i=0; paths; ++i, paths>>=1)
+	for(int i=-1; i<=1; ++i)
 	{
-		GL::Mesh *m = 0;
-		if(paths&1)
+		// TODO Make profile width configurable
+		Profile profile;
+		if(i==0)
+		{
+			float rail_w = (rail_max.x-rail_min.x)*2;
+			profile.append_vertex(Vector(rail_w*-0.5, 0, 0), false);
+			profile.append_vertex(Vector(rail_w*0.5, 0, 0), false);
+		}
+		else
 		{
-			m = new GL::Mesh(GL::VERTEX3);
+			profile.append_vertex(Vector(i*(gauge*0.5+rail_min.x*2), 0, 0), false);
+			profile.append_vertex(Vector(i*(gauge*0.5+rail_max.x*2), 0, 0), false);
+		}
+
+		// TODO Avoid generating redundant meshes for single-path tracks
+		for(int j=-1; j<=4; ++j)
+		{
+			if(j>=0 && !((paths>>j)&1))
+				continue;
+
+			GL::Mesh *m = new GL::Mesh(GL::VERTEX3);
 			GL::MeshBuilder bld(*m);
 			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(), Vector(0, 0, ballast_h+1.5*rail_h), false, bld, index);
+			for(vector<TrackPart>::const_iterator k=parts.begin(); k!=parts.end(); ++k)
+				if(j<0 || k->get_path()==static_cast<unsigned>(j))
+					build_part(*k, profile, Vector(0, 0, ballast_h+1.5*rail_h), false, bld, index);
+			path_meshes[(j&0xFF)|((i&3)<<8)] = m;
 		}
-		path_meshes.push_back(m);
 	}
 }
 
 TrackType3D::~TrackType3D()
 {
-	for(vector<GL::Mesh *>::iterator i=path_meshes.begin(); i!=path_meshes.end(); ++i)
-		delete *i;
+	for(map<unsigned, GL::Mesh *>::iterator i=path_meshes.begin(); i!=path_meshes.end(); ++i)
+		delete i->second;
 	if(own_data)
 	{
 		delete object;
@@ -86,13 +103,10 @@ TrackType3D::~TrackType3D()
 	}
 }
 
-const GL::Mesh &TrackType3D::get_path_mesh(unsigned p) const
+const GL::Mesh &TrackType3D::get_path_mesh(int p, int s) const
 {
-	if(p>=path_meshes.size())
-		throw out_of_range("TrackType3D::get_path_mesh");
-	if(!path_meshes[p])
-		throw invalid_argument("TrackType3D::get_path_mesh");
-	return *path_meshes[p];
+	unsigned key = (p<0 ? 0xFF : p) | ((s&3)<<8);
+	return *get_item(path_meshes, key);
 }
 
 void TrackType3D::build_part(const TrackPart &part, const Profile &profile, const Vector &offset, bool mirror, GL::MeshBuilder &bld, unsigned &base_index)