game/game.cpp

#include <SFML/Graphics.hpp>
#include <SFML/System.hpp>
#include <SFML/Window.hpp>

#include "main.hpp"
#include "game.hpp"

namespace Proto4 {

    bool Game::init() {
        mainView.setCenter(0, 0);
        mainView.setSize(xResolution, yResolution);
        return true;
    }

    AppState Game::handleKey(const sf::Event &event) {
        switch (state) {
        case GameState::Paused:
            switch (event.key.code) {
            case sf::Keyboard::Q:
                state = GameState::Finished;
                break;
            case sf::Keyboard::S:
                state = GameState::Running;
                break;
            default:
                break;
            }
            break;

        case GameState::Running:
            if (event.key.code == sf::Keyboard::Q)
                state = GameState::Paused;

        default:
            break;
        }

        return AppState::Game;
    }

    AppState Game::update(sf::RenderWindow &window, sf::Time timestep) {
        switch (state) {
        case GameState::Finished:
            reset();
            return AppState::MainMenu;

        case GameState::Uninitialized:
            start();
            break;

        case GameState::Paused:
            break;

        case GameState::Running:
            level.update(timestep);
            player.update(timestep, window.mapPixelToCoords(sf::Mouse::getPosition(window), mainView));
            // mainView acts as camera. TODO: introduce lagging camera
            mainView.setCenter(player.getPosition());
            break;

        default:
            break;
        }

        return AppState::Game;
    }

    void Game::draw(sf::RenderTarget &target, sf::RenderStates states) const {
        states.transform *= getTransform();
        target.setView(mainView);
        target.draw(level, states);
        target.draw(player, states);
    }

    bool Game::reset() {
        player.reset();
        state = GameState::Uninitialized;
        return true;
    }

    bool Game::start() {
        player.setPosition(mainView.getCenter());
        level = Level(mainView.getCenter());
        level.spawn(200);
        level.spawn(200);
        level.spawn(200);
        level.spawn(700);
        level.spawn(100);
        level.spawn(100);
        level.spawn(100);
        level.spawn(100);
        level.spawn(100);
        level.spawn(100);
        state = GameState::Running;
        return true;
    }

    // TODO: pause menu
    void Game::pause() {
        if (state == GameState::Running)
            state = GameState::Paused;
    }
    void Game::resume() {
        if (state == GameState::Paused)
            state = GameState::Running;
    }

    void Game::resize(sf::Event &resizeEvent) {
        mainView.setSize(resizeEvent.size.width, resizeEvent.size.height);
        mainView.setCenter(resizeEvent.size.width / 2, resizeEvent.size.height / 2);
    }

    sf::View& Game::getMainView() { return mainView; }
}