Polygon.cpp

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#include <glad/glad.h>
 
#include "Polygon.hpp"
 
namespace galaxy
{
    namespace graphics
    {
        Polygon::Polygon()
        {
            m_mode   = GL_LINE_LOOP;
            m_width  = 0.0f;
            m_height = 0.0f;
        }
 
        Polygon::Polygon(Polygon&& p)
            : Shape {std::move(p)}
        {
            this->m_points = std::move(p.m_points);
        }
 
        Polygon& Polygon::operator=(Polygon&& p)
        {
            if (this != &p)
            {
                Shape::operator=(std::move(p));
                this->m_points = std::move(p.m_points);
            }
 
            return *this;
        }
 
        Polygon::~Polygon()
        {
        }
 
        void Polygon::create(const meta::vector<glm::vec2>& points)
        {
            m_points = points;
 
            meta::vector<unsigned int>     indices;
            meta::vector<graphics::Vertex> vertices;
 
            auto count = 0u;
            for (const auto& point : m_points)
            {
                if (point.x > m_width)
                {
                    m_width = point.x;
                }
 
                if (point.y > m_height)
                {
                    m_height = point.y;
                }
 
                graphics::Vertex vertex;
                vertex.m_pos = point;
 
                vertices.emplace_back(vertex);
                indices.push_back(count);
 
                count++;
            }
 
            m_vao.buffer(vertices, indices);
        }
 
        const meta::vector<glm::vec2>& Polygon::points() const
        {
            return m_points;
        }
    } // namespace graphics
} // namespace galaxy