#include <SDL3/SDL.h>
#include "libtcod.hpp"
#include "Actor.h"
#include "Map.h"
#include "Engine.h"



Engine::Engine(tcod::Context *context, tcod::Console *console) {
	this->context = context;
	this->console = console;
	map = nullptr;
	player = nullptr;
	fovRadius = 10;
	computeFov = true;
}

void Engine::init() {
	player = new Actor(40, 25, "@", TCOD_ColorRGB(255, 255, 255));
	actors.push(player);
	map = new Map(80, 45);
}

Engine::~Engine() {
    actors.clearAndDelete();
    delete map;
}

bool Engine::update() {
	SDL_Event event;
	while (SDL_PollEvent(&event)) {
		context->convert_event_coordinates(event);
		switch (event.type) {
		case SDL_EVENT_KEY_DOWN:
			switch (event.key.key) {
			case SDLK_UP:
				if (!map->isWall(player->x, player->y - 1)) {
					player->y--;
					computeFov = true;
				}
				break;
			case SDLK_DOWN:
				if (!map->isWall(player->x, player->y + 1)) {
					player->y++;
					computeFov = true;
				}
				break;
			case SDLK_LEFT:
				if (!map->isWall(player->x - 1, player->y)) {
					player->x--;
					computeFov = true;
				}
				break;
			case SDLK_RIGHT:
				if (!map->isWall(player->x + 1, player->y)) {
					player->x++;
					computeFov = true;
				}
				break;
			default:
				break;
			}
			break;
		case SDL_EVENT_QUIT:
			return false;
		default:
			break;
		}
		if (computeFov) {
			map->computeFov();
			computeFov = false;
		}

	}
	return true;
}

void Engine::render() {
	console->clear();
	// draw the map
	map->render(*console);

	// draw the actors
	for (Actor** iterator = actors.begin();
		iterator != actors.end(); iterator++) {
		Actor* actor = *iterator;
		if (map->isInFov(actor->x, actor->y)) {
			actor->render(*console);
		}
	}
	context->present(*console);
}