Hi Robert,
Thanks for your response!
I might have the two vectors for the textures coordinate.
Basically my idea is to have cubes to draw Labyrinth.
I read a file such as:
Code:
xxxxx
x.....x
xxxxx
Where 'x' represents a wall.
I've a class named Level that hold two Vec2Array for the two textures, it also
hold vertices and normals.
What I do is
- Even: the first vector is filled with texture coordinates while the second
is filled with 0
- Odd: then the second time the first vector is filled with 0 and the second
with texture coordinates.
Here is the code:
Code:
float x = 0;
float y = 0;
int wallCount = 0;
while(std::getline(stream, line))
{
std::stringstream linestream(line);
while (linestream >> block)
{
float posx = 1.0 * x;
float posy = 1.0 * y;
float endx = posx + 1.0;
float endy = posy + 1.0;
switch (block)
{
case 'x':
if (wallCount % 2) // Odd or Even?
createCube(level.get(), *level->texcoords,
*level->texcoords2, posx, posy, endx, endy);
else
createCube(level.get(), *level->texcoords2,
*level->texcoords, posx, posy, endx, endy);
wallCount++;
break;
x += 1.0;
}
x = 0;
y -= 1.0; /* We decrements y To keep the labyrinth as on the file */
}
osg::ref_ptr<osg::Geometry> geom = new osg::Geometry;
geom->setVertexArray(level->vertices);
geom->setNormalArray(level->normals, osg::Array::Binding::BIND_PER_VERTEX);
geom->addPrimitiveSet(new osg::DrawArrays(GL_QUADS, 0, 24*wallCount));
osgUtil::SmoothingVisitor::smooth(*geom);
/*
* @param Level the container of the vertices, normals and textures for
the walls of our labyrinth
* @param tex the Vector that should receive the coordinate for the
textures
* @param skip the second vector for texture filled with '0' to 'skip'
this wall
*/
void LevelReader::createCube(Soleil::Level *level, osg::Vec2Array &tex,
osg::Vec2Array &skip,
float posx, float posy, float endx, float endy) const
{
// ------ Front
level->vertices->push_back(osg::Vec3(posx, posy, 0.0f));
level->vertices->push_back(osg::Vec3(endx, posy, 0.0f));
level->vertices->push_back(osg::Vec3(endx, posy, 1.0f));
level->vertices->push_back(osg::Vec3(posx, posy, 1.0f));
level->normals->push_back(osg::Vec3(0.0f,-1.0f, 0.0f));
level->normals->push_back(osg::Vec3(0.0f,-1.0f, 0.0f));
level->normals->push_back(osg::Vec3(0.0f,-1.0f, 0.0f));
level->normals->push_back(osg::Vec3(0.0f,-1.0f, 0.0f));
tex.push_back( osg::Vec2(0.0f, 0.0f));
tex.push_back( osg::Vec2(0.0f, 1.0f));
tex.push_back( osg::Vec2(1.0f, 1.0f));
tex.push_back( osg::Vec2(1.0f, 0.0f));
//
skip.push_back( osg::Vec2(0.0f, 0.0f));
skip.push_back( osg::Vec2(0.0f, 0.0f));
skip.push_back( osg::Vec2(0.0f, 0.0f));
skip.push_back( osg::Vec2(0.0f, 0.0f));
// ------ top
level->vertices->push_back(osg::Vec3(posx, posy, 1.0f));
level->vertices->push_back(osg::Vec3(endx, posy, 1.0f));
level->vertices->push_back(osg::Vec3(endx, endy, 1.0f));
level->vertices->push_back(osg::Vec3(posx, endy, 1.0f));
level->normals->push_back(osg::Vec3(0.0f, 0.0f, 1.0f));
level->normals->push_back(osg::Vec3(0.0f, 0.0f, 1.0f));
level->normals->push_back(osg::Vec3(0.0f, 0.0f, 1.0f));
level->normals->push_back(osg::Vec3(0.0f, 0.0f, 1.0f));
tex.push_back( osg::Vec2(0.0f, 0.0f));
tex.push_back( osg::Vec2(0.0f, 1.0f));
tex.push_back( osg::Vec2(1.0f, 1.0f));
tex.push_back( osg::Vec2(1.0f, 0.0f));
//
skip.push_back( osg::Vec2(0.0f, 0.0f));
skip.push_back( osg::Vec2(0.0f, 0.0f));
skip.push_back( osg::Vec2(0.0f, 0.0f));
skip.push_back( osg::Vec2(0.0f, 0.0f));
// ------ back
level->vertices->push_back(osg::Vec3(posx, endy, 0.0f));
level->vertices->push_back(osg::Vec3(endx, endy, 0.0f));
level->vertices->push_back(osg::Vec3(endx, endy, 1.0f));
level->vertices->push_back(osg::Vec3(posx, endy, 1.0f));
level->normals->push_back(osg::Vec3(0.0f, 1.0f, 0.0f));
level->normals->push_back(osg::Vec3(0.0f, 1.0f, 0.0f));
level->normals->push_back(osg::Vec3(0.0f, 1.0f, 0.0f));
level->normals->push_back(osg::Vec3(0.0f, 1.0f, 0.0f));
tex.push_back( osg::Vec2(0.0f, 0.0f));
tex.push_back( osg::Vec2(0.0f, 1.0f));
tex.push_back( osg::Vec2(1.0f, 1.0f));
tex.push_back( osg::Vec2(1.0f, 0.0f));
//
skip.push_back( osg::Vec2(0.0f, 0.0f));
skip.push_back( osg::Vec2(0.0f, 0.0f));
skip.push_back( osg::Vec2(0.0f, 0.0f));
skip.push_back( osg::Vec2(0.0f, 0.0f));
// ------ Bottom
level->vertices->push_back(osg::Vec3(posx, posy, 0.0f));
level->vertices->push_back(osg::Vec3(endx, posy, 0.0f));
level->vertices->push_back(osg::Vec3(endx, endy, 0.0f));
level->vertices->push_back(osg::Vec3(posx, endy, 0.0f));
level->normals->push_back(osg::Vec3(0.0f, 0.0f, -1.0f));
level->normals->push_back(osg::Vec3(0.0f, 0.0f, -1.0f));
level->normals->push_back(osg::Vec3(0.0f, 0.0f, -1.0f));
level->normals->push_back(osg::Vec3(0.0f, 0.0f, -1.0f));
tex.push_back( osg::Vec2(0.0f, 0.0f));
tex.push_back( osg::Vec2(0.0f, 1.0f));
tex.push_back( osg::Vec2(1.0f, 1.0f));
tex.push_back( osg::Vec2(1.0f, 0.0f));
//
skip.push_back( osg::Vec2(0.0f, 0.0f));
skip.push_back( osg::Vec2(0.0f, 0.0f));
skip.push_back( osg::Vec2(0.0f, 0.0f));
skip.push_back( osg::Vec2(0.0f, 0.0f));
// ------ Left
level->vertices->push_back(osg::Vec3(posx, posy, 0.0f));
level->vertices->push_back(osg::Vec3(posx, endy, 0.0f));
level->vertices->push_back(osg::Vec3(posx, endy, 1.0f));
level->vertices->push_back(osg::Vec3(posx, posy, 1.0f));
level->normals->push_back(osg::Vec3(-1.0f, 0.0f, 0.0f));
level->normals->push_back(osg::Vec3(-1.0f, 0.0f, 0.0f));
level->normals->push_back(osg::Vec3(-1.0f, 0.0f, 0.0f));
level->normals->push_back(osg::Vec3(-1.0f, 0.0f, 0.0f));
tex.push_back( osg::Vec2(0.0f, 0.0f));
tex.push_back( osg::Vec2(0.0f, 1.0f));
tex.push_back( osg::Vec2(1.0f, 1.0f));
tex.push_back( osg::Vec2(1.0f, 0.0f));
//
skip.push_back( osg::Vec2(0.0f, 0.0f));
skip.push_back( osg::Vec2(0.0f, 0.0f));
skip.push_back( osg::Vec2(0.0f, 0.0f));
skip.push_back( osg::Vec2(0.0f, 0.0f));
// ------ Right
level->vertices->push_back(osg::Vec3(endx, posy, 0.0f));
level->vertices->push_back(osg::Vec3(endx, endy, 0.0f));
level->vertices->push_back(osg::Vec3(endx, endy, 1.0f));
level->vertices->push_back(osg::Vec3(endx, posy, 1.0f));
level->normals->push_back(osg::Vec3(1.0f, 0.0f, 0.0f));
level->normals->push_back(osg::Vec3(1.0f, 0.0f, 0.0f));
level->normals->push_back(osg::Vec3(1.0f, 0.0f, 0.0f));
level->normals->push_back(osg::Vec3(1.0f, 0.0f, 0.0f));
tex.push_back( osg::Vec2(0.0f, 0.0f));
tex.push_back( osg::Vec2(0.0f, 1.0f));
tex.push_back( osg::Vec2(1.0f, 1.0f));
tex.push_back( osg::Vec2(1.0f, 0.0f));
//
skip.push_back( osg::Vec2(0.0f, 0.0f));
skip.push_back( osg::Vec2(0.0f, 0.0f));
skip.push_back( osg::Vec2(0.0f, 0.0f));
skip.push_back( osg::Vec2(0.0f, 0.0f));
}
Thanks,
Florian
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=67041#67041
_______________________________________________
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
