sf::Image copyToImage (const sf::String & alias) const
{
assert(("The texture requested does not exist", hasTexture(alias)));
return textures.at(alias).copyToImage();
}
// Accessors
const sf::Texture & getTexture(const sf::String & alias) const
{
assert(("The texture requested does not exist", hasTexture(alias)));
return textures.at(alias);
}
// Draw function
void Quad::drawFunc()
{
bool ok = false;
// Draw with texture
const unsigned int nv = getNumberOfVertices();
if (nv > 3) {
if (!strip) {
int rem = nv % 4;
if (rem != 0) std::cerr << "Quad::drawFunc() - Quad have to have multiple of 4 vertices, add or remove vertices!!" << std::endl;
else {
BEGIN_DLIST
glBegin(GL_QUADS);
ok = true;
}
}
else {
int rem = nv % 2;
if (rem != 0) std::cerr << "Quad::drawFunc() - quad strips have to have multiple of 2 vertices, add or remove vertices!!" << std::endl;
else {
BEGIN_DLIST
glBegin(GL_QUAD_STRIP);
ok = true;
}
}
if (ok) {
// get our regular vertices here
const osg::Vec3* v = getVertices();
const unsigned int ntc = getNumberOfTextureCoords();
// draw with texture
if (ntc > 0 && hasTexture()) {
const osg::Vec2* texCoord = getTextureCoord();
unsigned int tc = 0; // texture count
for (unsigned int i = 0; i < nv; i++) {
// add our textures coordinates
if (tc < ntc) lcTexCoord2v(texCoord[tc++].ptr());
// now our vertices
lcVertex3v( v[i].ptr() );
}
}
// draw without texture
else {
// get our color gradient and apply it (if we have one)
ColorGradient* colGradient = dynamic_cast<ColorGradient*>(getColor());
for (unsigned int i = 0; i < nv; i++) {
if (colGradient != nullptr) {
Basic::Color* col = colGradient->getColorByIdx(i+1);
if (col != nullptr)
glColor4f(static_cast<GLfloat>(col->red()),
static_cast<GLfloat>(col->green()),
static_cast<GLfloat>(col->blue()),
static_cast<GLfloat>(col->alpha()));
}
// now add our vertex
lcVertex3v( v[i].ptr() );
}
}
glEnd();
END_DLIST
}
}
else std::cerr << "Quad::drawFunc() - Quad or QuadStrip needs at least 4 vertices!" << std::endl;
