shape.cpp

#include "shape.hpp"

Shape::Shape(const Vector2D& location) :
    location_(location)
{

}

void Shape::scale(float s)
{
    for(Vector2D& vert : vertices_) {
        vert.i *= s;
        vert.j *= s;
    }
}

void Shape::render(prg::Canvas& canvas) const
{
    std::vector<Vector2D>::const_iterator Shapet_iter =
        vertices_.begin();
    std::vector<Vector2D>::const_iterator end_iter =
        vertices_.begin() + (vertices_.size()-1);

    for(
        std::vector<Vector2D>::const_iterator iter = Shapet_iter,
            next = Shapet_iter+1;
        iter != end_iter;
        ++iter,
        ++next
    )
    {
        canvas.drawLine(
            location_.i + iter->i,//P1
            location_.j + iter->j,
            location_.i + next->i,//P2
            location_.j + next->j,
            prg::Colour::MAGENTA
        );
    }

    canvas.drawLine(
            location_.i + end_iter->i,//P1
            location_.j + end_iter->j,
            location_.i + Shapet_iter->i,//P2
            location_.j + Shapet_iter->j,
            prg::Colour::MAGENTA
        );

}

void Shape::update()
{
    //TO BE COMPLETED LATER
    rotate_vectors(
        vertices_.data(),
        vertices_.size(),
        rotation_angle_
    );
}