cakefoot/src/Curve.cpp

#include "Curve.hpp"

void Curve::add(const std::vector<glm::vec3>& vertices)
{
    sb::extend(unwrapped, vertices);
    for (const std::vector<glm::vec3>& wrapped : sb::wrap_curve(vertices, {-aspect, -1.0f, 0.0f}, {aspect, 1.0f, 1.0f}))
    {
        position.push_back(sb::Attributes(wrapped));
        for (std::size_t jj = 0; jj < wrapped.size(); jj++)
        {
            color.add(1.0f, 1.0f, 1.0f, 1.0f);
        }
    }
}

int Curve::length() const
{
    return unwrapped.size();
}

const glm::vec3& Curve::front() const
{
    return unwrapped.front();
}

std::size_t Curve::size() const
{
    std::size_t byte_count = 0;
    for (const auto& attr : position)
    {
        byte_count += attr.size();
    }
    byte_count += color.size();
    return byte_count;
}

glm::vec3 Curve::operator[](int index) const
{
    return unwrapped[index];
}

int Curve::index(float relative) const
{
    return std::round(glm::mod(relative, 1.0f) * length());
}

glm::vec3 Curve::relative(float relative) const
{
    return unwrapped[index(relative)];
}

glm::vec3 Curve::wrap(const glm::vec3& vertex) const
{
    return sb::wrap_point(vertex, {-aspect, -1.0f, 0.0f}, {aspect, 1.0f, 1.0f});
}