public override void LoadAssets()
{
// Create a new SpriteBatch, which can be used to draw textures.
spriteBatch = new SpriteBatch(ScreenManager.GraphicsDeviceMgr.GraphicsDevice);
//Add assets to respective dictionaries
ScreenManager.AddTexture(@"Objects/ship");
ScreenManager.AddTexture(@"Backgrounds/GameScreenBackground");
ScreenManager.AddTexture(@"Objects/asteroid_pixelated");
ScreenManager.AddTexture(@"Objects/explosion");
ScreenManager.AddTexture(@"Objects/beamParticle");
ScreenManager.AddTexture(@"Objects/exhaust");
//Load Sound Effects
shootSound = ScreenManager.ContentMgr.Load<SoundEffect>(@"Sounds/Laser_Shoot");
explosion = ScreenManager.ContentMgr.Load<SoundEffect>(@"Sounds/Explosion");
exhaustSound = ScreenManager.ContentMgr.Load<SoundEffect>(@"Sounds/Exhaust");
projectileSprite = ScreenManager.Textures["Objects/beamParticle"];
exhaustSprite = ScreenManager.Textures["Objects/exhaust"];
backgroundRectangle = new Rectangle(0, 0, GameConstants.VIEWPORT_WIDTH, GameConstants.VIEWPORT_HEIGHT);
//Add initial game objects
ship = new Ship(ScreenManager.ContentMgr, @"Objects/ship", GameConstants.VIEWPORT_WIDTH / 2, GameConstants.VIEWPORT_HEIGHT / 2, shootSound);
ship.Rotation = 0;
for (int i = 0; i < GameConstants.MAX_ASTEROIDS; i++)
{
CreateAsteroid();
}
exhaust = new Exhaust(MainGameScreen.GetExhaustSprite(), ship.Position, ship.Velocity, exhaustSound);
//Background music loop
SoundEffect backgroundLoop = ScreenManager.ContentMgr.Load<SoundEffect>(@"Sounds/BackgroundMusic");
SoundEffectInstance bgSound = backgroundLoop.CreateInstance();
bgSound.IsLooped = true;
bgSound.Play();
}
/// <summary>
/// Checks collision between two rotated rectangles
/// </summary>
/// <param name="drawRectangle1">First rectangle</param>
/// <param name="drawRectangle2">Second Rectangle</param>
/// <returns>True or False</returns>
public static bool CheckRotatedCollision(Ship ship, Asteroid asteroid)
{
float distance = 0.0f;
Vector2 position1 = asteroid.Position;
Vector2 position2 = ship.Position;
float Cathetus1 = Math.Abs(position1.X - position2.X);
float Cathetus2 = Math.Abs(position1.Y - position2.Y);
Cathetus1 *= Cathetus1;
Cathetus2 *= Cathetus2;
distance = (float)Math.Sqrt(Cathetus1 + Cathetus2);
if ((int)distance < ship.CollisionRectangle.Width)
{
return true;
}
return false;
}