public void StartProgram()
{
SnapsEngine.SetBackgroundColor(SnapsColor.Black);
SnapsEngine.StartGameEngine(fullScreen: false, framesPerSecond: 60);
List <MovingSprite> sprites = new List <MovingSprite>();
List <AlienSprite> aliens = new List <AlienSprite>();
for (int i = 0; i < 100; i++)
{
ImageSprite starImage = new ImageSprite(imageURL: "ms-appx:///Images/star.png");
SnapsEngine.AddSpriteToGame(starImage);
starImage.ScaleSpriteWidth(SnapsEngine.GameViewportWidth / 75);
FallingSprite star = new FallingSprite(sprite: starImage,
xSpeed: 0, ySpeed: 15,
viewportWidth: SnapsEngine.GameViewportWidth,
viewportHeight: SnapsEngine.GameViewportHeight);
sprites.Add(star);
}
ImageSprite rocketImage = new ImageSprite(imageURL: "ms-appx:///Images/SpaceRocket.png");
SnapsEngine.AddSpriteToGame(rocketImage);
rocketImage.ScaleSpriteWidth(SnapsEngine.GameViewportWidth / 15);
rocketImage.CenterX = SnapsEngine.GameViewportWidth / 2.0;
rocketImage.CenterY = SnapsEngine.GameViewportHeight / 2.0;
RocketSprite rocket = new RocketSprite(sprite: rocketImage, xSpeed: 10, ySpeed: 10);
sprites.Add(rocket);
ImageSprite chasingAlienImage = new ImageSprite(imageURL: "ms-appx:///Images/purpleAlien.png");
SnapsEngine.AddSpriteToGame(chasingAlienImage);
chasingAlienImage.Top = 10;
chasingAlienImage.ScaleSpriteWidth(SnapsEngine.GameViewportWidth / 20);
chasingAlienImage.CenterX = SnapsEngine.GameViewportWidth / 2.0;
chasingAlienImage.Top = 0;
ChasingAlien chaser = new ChasingAlien(sprite: chasingAlienImage, target: rocket, xAcceleration: .3, yAcceleration: .3, friction: 0.99);
sprites.Add(chaser);
aliens.Add(chaser);
int noOfAliens = 10;
double alienWidth = SnapsEngine.GameViewportWidth / (noOfAliens * 2);
double alienSpacing = (SnapsEngine.GameViewportWidth - alienWidth) / noOfAliens;
double alienX = 0;
double alienY = 100;
for (int i = 0; i < noOfAliens; i = i + 1)
{
ImageSprite alienImage = new ImageSprite(imageURL: "ms-appx:///Images/greenAlien.png");
SnapsEngine.AddSpriteToGame(alienImage);
alienImage.ScaleSpriteWidth(alienWidth);
alienImage.CenterX = alienX;
alienImage.Top = alienY;
double xMin = alienX;
double xMax = alienX + alienSpacing;
LineAlien alien = new LineAlien(sprite: alienImage, xSpeed: 2, ySpeed: 0, target: rocket, xMax: xMax, xMin: xMin);
sprites.Add(alien);
aliens.Add(alien);
alienX = alienX + alienSpacing;
}
ImageSprite missileImage = new ImageSprite(imageURL: "ms-appx:///Images/Missile.png");
missileImage.ScaleSpriteWidth(SnapsEngine.GameViewportWidth / 200);
SnapsEngine.AddSpriteToGame(missileImage);
MissileSprite missile = new MissileSprite(sprite: missileImage, rocket: rocket, xSpeed: 0, ySpeed: -15, aliens: aliens);
sprites.Add(missile);
rocket.Missiles.Add(missile);
while (true)
{
foreach (MovingSprite sprite in sprites)
{
sprite.Update();
}
SnapsEngine.DrawGamePage();
}
}
void setupGame()
{
SnapsEngine.SetBackgroundColor(SnapsColor.Black);
SnapsEngine.StartGameEngine(fullScreen: false, framesPerSecond: 60);
for (int i = 0; i < 100; i++)
{
ImageSprite starImage = new ImageSprite(imageURL: "ms-appx:///Images/star.png");
SnapsEngine.AddSpriteToGame(starImage);
starImage.ScaleSpriteWidth(SnapsEngine.GameViewportWidth / 75);
FallingSprite star = new FallingSprite(sprite: starImage,
xSpeed: 0, ySpeed: 15,
viewportWidth: SnapsEngine.GameViewportWidth,
viewportHeight: SnapsEngine.GameViewportHeight);
sprites.Add(star);
}
ImageSprite rocketImage = new ImageSprite(imageURL: "ms-appx:///Images/SpaceRocket.png");
SnapsEngine.AddSpriteToGame(rocketImage);
rocketImage.ScaleSpriteWidth(SnapsEngine.GameViewportWidth / 15);
rocketImage.CenterX = SnapsEngine.GameViewportWidth / 2.0;
rocketImage.CenterY = SnapsEngine.GameViewportHeight / 2.0;
rocket = new RocketSprite(sprite: rocketImage, game: this, xSpeed: 10, ySpeed: 10);
sprites.Add(rocket);
ImageSprite chasingAlienImage = new ImageSprite(imageURL: "ms-appx:///Images/purpleAlien.png");
SnapsEngine.AddSpriteToGame(chasingAlienImage);
chasingAlienImage.Top = 10;
chasingAlienImage.ScaleSpriteWidth(SnapsEngine.GameViewportWidth / 20);
chasingAlienImage.CenterX = SnapsEngine.GameViewportWidth / 2.0;
chasingAlienImage.Top = 0;
chaser = new ChasingAlien(sprite: chasingAlienImage, game: this, target: rocket, xAcceleration: .3, yAcceleration: .3, friction: 0.99);
sprites.Add(chaser);
aliens.Add(chaser);
int noOfAliens = 10;
double alienWidth = SnapsEngine.GameViewportWidth / (noOfAliens * 2);
double alienSpacing = (SnapsEngine.GameViewportWidth - alienWidth) / noOfAliens;
double alienX = 0;
double alienY = 100;
for (int i = 0; i < noOfAliens; i = i + 1)
{
ImageSprite alienImage = new ImageSprite(imageURL: "ms-appx:///Images/greenAlien.png");
SnapsEngine.AddSpriteToGame(alienImage);
alienImage.ScaleSpriteWidth(alienWidth);
alienImage.CenterX = alienX;
alienImage.Top = alienY;
double xMin = alienX;
double xMax = alienX + alienSpacing;
LineAlien alien = new LineAlien(sprite: alienImage, game: this, xSpeed: 2, ySpeed: 0, target: rocket, xMax: xMax, xMin: xMin);
sprites.Add(alien);
aliens.Add(alien);
alienX = alienX + alienSpacing;
}
ImageSprite missileImage = new ImageSprite(imageURL: "ms-appx:///Images/Missile.png");
missileImage.ScaleSpriteWidth(SnapsEngine.GameViewportWidth / 200);
SnapsEngine.AddSpriteToGame(missileImage);
MissileSprite missile = new MissileSprite(sprite: missileImage, rocket: rocket, xSpeed: 0, ySpeed: -15, aliens: aliens);
sprites.Add(missile);
rocket.Missiles.Add(missile);
gameOverScreen = new ImageSprite(imageURL: "ms-appx:///Images/SpaceRocketsInSpaceGameOverScreen.png");
gameOverScreen.Hide();
SnapsEngine.AddSpriteToGame(gameOverScreen);
gameOverScreen.Width = SnapsEngine.GameViewportWidth;
gameOverScreen.Height = SnapsEngine.GameViewportHeight;
messageBack = new TextBlockSprite(text: "", fontSize: 60,
fontFamily: "Impact", color: SnapsColor.Black);
SnapsEngine.AddSpriteToGame(messageBack);
message = new TextBlockSprite(text: "", fontSize: 60,
fontFamily: "Impact", color: SnapsColor.Red);
SnapsEngine.AddSpriteToGame(message);
titleScreen = new ImageSprite(imageURL: "ms-appx:///Images/SpaceRocketsInSpaceTitleScreen.png");
titleScreen.Hide();
SnapsEngine.AddSpriteToGame(titleScreen);
titleScreen.Width = SnapsEngine.GameViewportWidth;
titleScreen.Height = SnapsEngine.GameViewportHeight;
}
