public DemoGameImplementation(GameImages gameTextures, GameSounds gameSounds)
{
_gameTextures = gameTextures;
_gameSounds = gameSounds;
_yellowFont = new BasicFont(gameTextures.YellowFont);
_world = new WorldModel(gameTextures, gameSounds, _yellowFont, gameTextures.Ship.Dimensions.Width, gameTextures.Alien1.Dimensions.Width);
}
static void Main(string[] args)
{
try
{
SDLCoverLibrary.Init.WithSDLDo(
() =>
{
var mainWindowSize = new Dimensions {
Width = 1280, Height = 800
};
var retroScreenSize = new Dimensions {
Width = 320, Height = 256
};
var mainWindow = new Window("Waters Alien Raiders Shoot'em Side Scroller Game", mainWindowSize);
var gameImages = new GameImages(mainWindow.Renderer);
var gameSounds = new GameSounds();
mainWindow.RunUsing(new DemoGameImplementation(gameImages, gameSounds), retroScreenSize);
}
);
}
catch (Exception e)
{
Console.WriteLine("Unhandled exception during program: " + e.ToString());
Console.Write(e.StackTrace);
}
}
public WorldModel(GameImages gameTextures, GameSounds gameSounds, BasicFont yellowFont, int shipWidth, int alienWidth)
{
YellowFont = yellowFont;
Images = gameTextures;
Sounds = gameSounds;
Ship.Width = shipWidth; // Quiz: Why store this?
AlienModel.AlienWidth = alienWidth;
}
public static void ConsiderRespawningShip(double gameTimeSeconds, ShipModel ship, GameSounds gameSounds)
{
if (ship.IsDestroyed)
{
double elapsedTime = gameTimeSeconds - ship.TimeOfDestruction;
if (elapsedTime > ShipModel.RespawnDelay)
{
ship.IsDestroyed = false;
gameSounds.ExtraLifeSound.Play();
}
}
}
public static void CheckIfShipShot(double gameTimeSeconds, ShipModel ship, AlienListModel aliensList, AlienBulletListModel alienBulletList, ExplosionListModel explosions, GameSounds gameSounds)
{
if (!ship.IsDestroyed)
{
bool shipDestroyed =
alienBulletList.AlienBullets.Exists(b => CollisionDetection.Hits(b.CentrePoint, ship.CentrePoint, CollisionDetectRange)) ||
aliensList.Aliens.Exists(a => CollisionDetection.Hits(a.CentrePoint, ship.CentrePoint, CollisionDetectRange));
if (shipDestroyed)
{
DestroyShip(gameTimeSeconds, ship, explosions, gameSounds);
}
}
}
public static void DestroyShip(double gameTimeSeconds, ShipModel ship, ExplosionListModel explosions, GameSounds gameSounds)
{
ship.IsDestroyed = true;
ship.TimeOfDestruction = gameTimeSeconds;
AddExplosion(gameTimeSeconds, ship.CentrePoint, explosions, gameSounds);
}
public static void CheckIfAlienShot(double gameTimeSeconds, AlienListModel alienList, ShipBulletListModel shipBulletsList, ExplosionListModel explosionsList, ScoreModel Scoring, GameSounds gameSounds)
{
CheckIfAlienShotAndThen(
gameTimeSeconds, alienList, shipBulletsList, alien =>
{
AddExplosion(gameTimeSeconds, alien.CentrePoint, explosionsList, gameSounds);
Scoring.SetScore(Scoring.Score + 1);
});
}
public static void AddExplosion(double gameTimeSeconds, Point explosionCentre, ExplosionListModel explosionList, GameSounds gameSounds)
{
explosionList.Explosions.Add(new ExplosionModel(explosionCentre, gameTimeSeconds));
gameSounds.ExplosionSound.Play();
}
public static void ConsiderPlayerFiring(double gameTimeSeconds, Input input, ShipBulletListModel shipBulletList, ShipModel ship, GameSounds gameSounds)
{
if (!ship.IsDestroyed && input.Fire.JustDown)
{
var elapsedTime = gameTimeSeconds - ship.MostRecentPlayerFiringTime;
if (elapsedTime > ShipModel.MinFiringIntervalForPlayer)
{
shipBulletList.ShipBullets.Add(new ShipBulletModel(ship.CentrePoint.ShuntedBy(ship.Width, 0)));
ship.MostRecentPlayerFiringTime = gameTimeSeconds; // Quiz: Why are we doing this?
gameSounds.PlayerFiringSound.Play();
}
}
}
public static void CauseAlienToFire(AlienModel alien, AlienBulletListModel alienBulletList, GameSounds gameSounds) // Quiz: What future purpose have I catered for by separating this out? If you can guess, how could that purpose be fulfilled?
{
alienBulletList.AlienBullets.Add(new AlienBulletModel(alien.CentrePoint.ShuntedBy(-AlienModel.AlienWidth, 0)));
gameSounds.EnemyFiringSound.Play();
}
public static void ConsiderAddingAlien(double gameTimeSeconds, ShipModel ship, AlienListModel alienList, Random randomGenerator, AlienBulletListModel alienBulletList, GameSounds gameSounds)
{
if (!ship.IsDestroyed) // Quiz: Why not add aliens in the period while the ship is "destroyed"?
{
ConsiderAddingAlienAndThen(gameTimeSeconds, alienList, randomGenerator, alien =>
{
if (randomGenerator.Next(0, 100) > AlienModel.PercentChangeAlienFiresWhenCreated) // Quiz: Does my hard-coded constant really 100 matter here? Is this bad practice?
{
CauseAlienToFire(alien, alienBulletList, gameSounds);
}
});
}
}