//
// Created by trotfunky on 06/06/19.
//

#ifndef SRC_LEVEL_H
#define SRC_LEVEL_H

#include <SFML/Graphics.hpp>
#include <pugixml.hpp>
#include <vector>
#include <cstring>
#include <set>
#include <map>

#include "Utils.h"
#include "Entity.h"

using TextureStore = std::vector<std::unique_ptr<sf::Texture>>;

class Level {
public:
    Level(const pugi::xml_document& xmlDoc, const TextureStore& textureStore);

    void render(sf::RenderWindow& renderWindow) const;
    void runStep();

private:
    const pro_maat::GridPos size;

    std::vector<Entity> entities;

    const TextureStore& textures;

    //
    // Pathfinding
    //

    std::vector<pro_maat::GridPos> occupiedSquares;

    /// If sign is +1, finds a path between start and goal positions.
    /// If sign is -1, finds a path away from the goal position, from the starting position.
    /// THIS DOES NOT HANDLE ENTITIES BIGGER THAN ONE SQUARE
    ///
    /// \param start Starting position
    /// \param goal  Goal position
    /// \param sign  +1 or -1, defines if we go towards or away from the goal
    /// \return      Orientation of the next move if successful, Orientation::None otherwise.
    Orientation findPath(pro_maat::GridPos start, pro_maat::GridPos goal, int sign);
};


#endif //SRC_LEVEL_H