Toy-Raytracer/World.h

//
// Created by trotfunky on 27/05/19.
//

#ifndef RAYCASTING_WORLD_H
#define RAYCASTING_WORLD_H

#include <vector>
#include <ostream>
#include <SFML/Graphics.hpp>
#include <iostream>

#include "Color.h"
#include "Player.h"

enum class BlockType {
	AIR,
	WALL,
	DOOR,
	WINDOW,
};

class World {
public:
	Player player;

	World(int w, int h,
		  sf::Color groundColor = Colors::Ground,
		  sf::Color ceilingColor = Colors::Ceiling,
		  std::vector<BlockType> worldMap = {});
	int getW() const;
	int getH() const;

	inline BlockType getBlock(int x, int y) const;
	inline BlockType getBlock(float x, float y) const;
	void setBlock(BlockType block, int x, int y, int width = 1, int height = 1);

	void render(sf::RenderWindow&) const;

	/**
	 * Move the world one step forward.
	 * @param stepTime delta time since last step, in seconds
	 */
	void step(const float& stepTime);

	friend std::ostream& operator<<(std::ostream& ostream, World const & world);
private:
	int w;
	int h;
	std::vector<BlockType> map;

	sf::Color groundColor;
	sf::Color ceilingColor;

	void fillColumn(sf::RenderWindow&, unsigned int column, float scale,
					sf::Color fillColor = Colors::Wall) const;
	/**
	 * Cast a ray from a given position and return its distance to the origin.
	 * @param originX Ray X origin, strictly positive
	 * @param originY Ray Y origin, strictly positive
	 * @param orientation Angle to cast to, in degrees between 0 and 360
	 * @return Distance of the hit to the origin.
	 */
	float castRay(float originX, float originY, float orientation) const;
};


#endif //RAYCASTING_WORLD_H