#pragma once

#include <vector>

#if defined (_WIN32)
	#include <SDL.h>
#else
	#include <SDL2/SDL.h>
#endif
#include <glm/glm.hpp>

#include "camera.h"
#include "entity.h"
#include "hexgrid.h"
#include "util.h"


struct SDL_Handles
{
	SDL_Window *window;
	SDL_GLContext glContext;
	SDL_DisplayMode currentDisplayMode;
	std::vector<SDL_Surface*> texSurfaces;
};

struct render_state
{
	v2i viewport_dims;
	bool is_debug_draw;
	uint32 fill_color;
	uint32 selected_fill_color;
};

struct renPointLight
{
	glm::vec3 position;
	glm::vec3 direction;
	glm::vec3 color;
	float intensity;

	uint light_ID;
};

bool initRenderer(SDL_Handles &handles, v2i vpDims);
bool addTexture(SDL_Handles &handles, const char * path);
camera& renGetCamera();
v2f getUnprojectedCoords(int32 x, int32 y, int32 vp_width, int32 vp_height);
v3f getCameraPosition();
bool createScene(std::vector<hex_info>* hexes, Entity* entities, uint32 entity_count);
void moveCamera(bool up, bool left, bool down, bool right, bool forward, bool backward);
void rollCamera(bool CW, bool CCW);
void rotateCamera(int32	xrel, int32 yrel);
void renderFrame(std::vector<hex_info> *hexes, Entity* entities, uint32 entity_count);
void renderDebug(std::vector<Point> &vertices);
void freeBuffers();