public Asteroid(State state, Vector2 position, int? typeOverride = null, bool isStatic = false)
: base(state)
{
var type = typeOverride.HasValue ? typeOverride.Value : Program.Random.Next(Radiuses.Count);
var radius = Radiuses[type];
_sprite = new Sprite(Assets.LoadTexture(string.Format("asteroid{0}.png", type))).Center();
var c = (byte)Program.Random.Next(180, 255);
_sprite.Color = new Color(c, c, c);
#region Body Initialize
Body = new Body(State.World);
Body.BodyType = BodyType.Dynamic;
Body.LinearDamping = 0.5f;
Body.AngularDamping = 0.5f;
var shape = new FarseerPhysics.Collision.Shapes.CircleShape(radius, 20 * radius);
Body.CreateFixture(shape);
Body.UserData = this;
if (isStatic)
Body.BodyType = BodyType.Static;
Body.Position = position;
Body.Rotation = (float)(Program.Random.NextDouble() * (Math.PI * 2));
#endregion
}
/// <summary>
/// Add a circle collision shape to the body.
/// </summary>
/// <param name="radius">Radius of the circle in body space.</param>
/// <param name="center">Center of the circle in body space.</param>
/// <param name="density">Density of shape, used to compute mass.</param>
/// <returns>Fixture definition.</returns>
public Physics.Dynamics.Fixture AddCollisionCircle(float radius, Vector2 center, float density = 1.0f)
{
Physics.Collision.Shapes.CircleShape circle = new Physics.Collision.Shapes.CircleShape(radius * GameEnvironment.k_physicsScale);
circle.Position = center * GameEnvironment.k_physicsScale;
return(AddCollisionShape(circle, density));
}
/// <summary>
/// Add a circle collision shape to the body.
/// </summary>
/// <param name="radius">Radius of the circle in body space.</param>
/// <param name="center">Center of the circle in body space.</param>
/// <param name="density">Density of shape, used to compute mass.</param>
/// <returns>Fixture definition.</returns>
public Physics.Dynamics.Fixture AddCollisionCircle(float radius, Vector2 center, float density = 1.0f)
{
Physics.Collision.Shapes.CircleShape circle = new Physics.Collision.Shapes.CircleShape(radius * GameEnvironment.k_physicsScale);
circle.Position = center * GameEnvironment.k_physicsScale;
return AddCollisionShape(circle, density);
}
