SFMLApp.cpp

#include "SFMLApp.h"
#include "Tile.h"

#include <ctime>
#include <cstdlib>

TextureManager* SFMLApp::textureManager = new TextureManager();

SFMLApp::SFMLApp() {

}

SFMLApp::~SFMLApp() {
    delete this->window;
    delete this->level;
}

bool SFMLApp::Init() {
    // Initialize the rendering window.
    this->window = new sf::RenderWindow(sf::VideoMode(SFMLApp::WINDOW_WIDTH, SFMLApp::WINDOW_HEIGHT, 32), "SFML Tiles");
    this->viewport.reset(sf::FloatRect(0, 0, SFMLApp::WINDOW_WIDTH, SFMLApp::WINDOW_HEIGHT));

    // Load the textures into the texture manager.
    SFMLApp::textureManager->AddTexture("WoodTexture01.png", "Wood01");
    SFMLApp::textureManager->AddTexture("FogMesh01.png", "FogMesh");

    // Set the default size for the map and generate a new level.
    this->level = new Level(50, 50);
    this->GenerateLevel();

    // Tells the Execute() method whether or not the window was successfully initialized.
    return (this->window != NULL);
}

void SFMLApp::HandleEvent(sf::Event* event) {
    // If the player closes the window, set the running flag to false.
    if(event->type == sf::Event::Closed) {
        this->running = false;
    }

    if(event->type == sf::Event::KeyPressed) {
        // If the Escape key is pressed, set the running flag to false.
        if(sf::Keyboard::isKeyPressed(sf::Keyboard::Key::Escape)) this->running = false;

        // If the arrow keys are pressed, flag them.
        if(sf::Keyboard::isKeyPressed(sf::Keyboard::Key::Up)) this->keys[0] = true;
        if(sf::Keyboard::isKeyPressed(sf::Keyboard::Key::Right)) this->keys[1] = true;
        if(sf::Keyboard::isKeyPressed(sf::Keyboard::Key::Down)) this->keys[2] = true;
        if(sf::Keyboard::isKeyPressed(sf::Keyboard::Key::Left)) this->keys[3] = true;

        // If the space bar is pressed, generate a new level.
        if(sf::Keyboard::isKeyPressed(sf::Keyboard::Key::Space)) {
            delete this->level;
            this->level = new Level(50, 50);
            this->GenerateLevel();
        }
    }

    if(event->type == sf::Event::KeyReleased) {
        // If the arrow keys are released, unflag them.
        if(!sf::Keyboard::isKeyPressed(sf::Keyboard::Key::Up) && this->keys[0]) this->keys[0] = false;
        if(!sf::Keyboard::isKeyPressed(sf::Keyboard::Key::Right) && this->keys[1]) this->keys[1] = false;
        if(!sf::Keyboard::isKeyPressed(sf::Keyboard::Key::Down) && this->keys[2]) this->keys[2] = false;
        if(!sf::Keyboard::isKeyPressed(sf::Keyboard::Key::Left) && this->keys[3]) this->keys[3] = false;
    }
}

void SFMLApp::Update(sf::Time elapsed) {
    // If the arrow keys are pressed, move the viewport.
    if(this->keys[0]) this->viewport.move(0.0f, 2.0f);
    if(this->keys[1]) this->viewport.move(-2.0f, 0.0f);
    if(this->keys[2]) this->viewport.move(0.0f, -2.0f);
    if(this->keys[3]) this->viewport.move(2.0f, 0.0f);
}

void SFMLApp::Render() {
    this->window->clear(sf::Color::Black);

    this->window->setView(this->viewport);
    this->level->DrawTiles(this->window);
    this->window->setView(this->window->getDefaultView());

    this->window->display();
}

void SFMLApp::Cleanup() {

}

void SFMLApp::GenerateLevel() {
    srand(time(NULL));

    sf::Vector2f position = sf::Vector2f((SFMLApp::WINDOW_WIDTH / 2), (SFMLApp::WINDOW_HEIGHT / 2));

    int cX = 9;
    int cY = 14;

    int xDir = 0;
    int yDir = -1;

    Tile startTile = Tile(position.x, position.y, SFMLApp::textureManager->GetTexture("Wood01"));
    startTile.ChangeState(TileState::VISIBLE);
    this->level->AddTile(cX, cY, &startTile);

    for(int i = 0; i < 120; i++) {
        bool turn = (((rand() % 20) + 1) > 9);
        if(turn) {
            int direction = (((rand() % 2) == 0)?-1:1);
            if(xDir != 0) {
                xDir = 0;
                yDir = direction;
            } else {
                yDir = 0;
                xDir = direction;
            }
        }

        xDir = ((((cX + xDir) >= 0) && ((cX + xDir) < this->level->GetWidth()))?xDir:-xDir);
        yDir = ((((cY + yDir) >= 0) && ((cY + yDir) < this->level->GetHeight()))?yDir:-yDir);
        cX += xDir;
        cY += yDir;
        position.x += ((float)xDir * Tile::TILE_SIZE);
        position.y += ((float)yDir * Tile::TILE_SIZE);

        Tile temp = Tile(position.x, position.y, SFMLApp::textureManager->GetTexture("Wood01"));
        temp.ChangeState(TileState::REVEALED);
        this->level->AddTile(cX, cY, &temp);
    }

    this->viewport.setCenter(startTile.GetPosition());
}