public Asteroid(Game game)
: base(game)
{
// Initialize to random position/orientation
Vector2 randPos = Random.GetVector(new Vector2(-512.0f, -384.0f), new Vector2(512.0f, 384.0f));
Position = randPos;
Rotation = Random.GetFloat(0.0f, MathUtils.TwoPi);
// Create a sprite component
SpriteComponent sprite = new SpriteComponent(this);
sprite.SetTexture(Game.Renderer.GetTexture("Assets/Asteroid.png"));
// Create a move component, and set a forward speed
MoveComponent move = new MoveComponent(this)
{
ForwardSpeed = 150.0f,
};
// Create a circle component (for collision)
Circle = new CircleComponent(this)
{
Radius = 40.0f,
};
// Add to mAsteroids in game
Game.AddAsteroid(this);
}
public static bool Intersect(CircleComponent a, CircleComponent b)
{
// Calculate distance squared
Vector2 diff = a.Center - b.Center;
float distSq = diff.LengthSquared();
// Calculate sum of radii squared
float radiiSq = a.Radius + b.Radius;
radiiSq *= radiiSq;
return(distSq <= radiiSq);
}