void PolygonNode::calcFillVertexes(const VertexDataPtr& pVertexData, Pixel32 color)
{
if (getNumDifferentPts(m_Pts) < 3) {
return;
}
// Remove duplicate points
vector<glm::vec2> pts;
vector<unsigned int> holeIndexes;
pts.reserve(m_Pts.size());
if (glm::distance2(m_Pts[0], m_Pts[m_Pts.size()-1]) > 0.1) {
pts.push_back(m_Pts[0]);
}
for (unsigned i = 1; i < m_Pts.size(); ++i) {
if (glm::distance2(m_Pts[i], m_Pts[i-1]) > 0.1) {
pts.push_back(m_Pts[i]);
}
}
if (m_Holes.size() > 0) {
for (unsigned int i = 0; i < m_Holes.size(); i++) { //loop over collection
holeIndexes.push_back(pts.size());
for (unsigned int j = 0; j < m_Holes[i].size(); j++) { //loop over vector
pts.push_back(m_Holes[i][j]);
}
}
}
if (color.getA() > 0) {
glm::vec2 minCoord = pts[0];
glm::vec2 maxCoord = pts[0];
for (unsigned i = 1; i < pts.size(); ++i) {
if (pts[i].x < minCoord.x) {
minCoord.x = pts[i].x;
}
if (pts[i].x > maxCoord.x) {
maxCoord.x = pts[i].x;
}
if (pts[i].y < minCoord.y) {
minCoord.y = pts[i].y;
}
if (pts[i].y > maxCoord.y) {
maxCoord.y = pts[i].y;
}
}
vector<unsigned int> triIndexes;
triangulatePolygon(triIndexes, pts, holeIndexes);
for (unsigned i = 0; i < pts.size(); ++i) {
glm::vec2 texCoord = calcFillTexCoord(pts[i], minCoord, maxCoord);
pVertexData->appendPos(pts[i], texCoord, color);
}
for (unsigned i = 0; i < triIndexes.size(); i+=3) {
pVertexData->appendTriIndexes(triIndexes[i], triIndexes[i+1],
triIndexes[i+2]);
}
}
}
void GLShaderParamTemplate<Pixel32>::uniformSet(unsigned location, const Pixel32& val)
{
glproc::Uniform4f(location, val.getR()/255.f, val.getG()/255.f, val.getB()/255.f,
val.getA()/255.f);
}