TextNode* Font::getTextNode(std::string s, glm::vec3 color, float font_size)
{

    Mesh* textmesh =  new Mesh();
    glm::vec2 current_pos(0.f);
    float sizeRatio = font_size / m_defaultLineHeight;
    for(char c : s){
        if(c == '\n')
        {
            current_pos.x = 0.f; // left alignment -> TODO : be able to center or align right
            current_pos.y += font_size;
        }
        else
        {
            CharInfo charInfo = m_charTable[c];
            textmesh->addRectangle2D((current_pos + charInfo.offset)*sizeRatio,
                                     charInfo.dim * sizeRatio,
                                     charInfo.pos/m_scale,
                                     charInfo.dim/m_scale);
            current_pos.x += charInfo.xadvance;
        }
    }