#include "world_view.h"

WorldView::WorldView() : view(nullptr)
{
}

WorldView::~WorldView()
{
    delete view;
}

void WorldView::draw(sf::RenderWindow *window) const
{
}

void WorldView::update(Game *game)
{
    if (view == nullptr)
    {
        initializeView(game);
    }

    // Update size
    auto windowSize = game->window->getSize();
    sf::Vector2f viewSize = sf::Vector2f(windowSize.x, windowSize.y);
    view->setSize(viewSize);

    // Update position
    auto moveDirection = InputMapper::getInputDirection();
    if (moveDirection != InputDirection::NONE)
    {
        float stepSize = 100.0f * FRAME_TIME.asSeconds();
        auto delta = stepSize * Direction::getVector(moveDirection);
        this->view->move(delta);
    }

    // TODO: Only update if necessary
    game->window->setView(*this->view);
}

void WorldView::initializeView(Game *game)
{
    auto center = game->window->getView().getCenter();
    auto size = game->window->getView().getSize();
    view = new sf::View(center, size);
}