/// <summary>
/// Gets an initialized cannon ball from the resource pool.
/// </summary>
/// <param name="manager">Manager of the new cannonball.</param>
/// <param name="space">Space to which the cannon ball belongs.</param>
/// <param name="position">Position at which to spawn the cannon ball.</param>
/// <param name="initialVelocity">Initial velocity of the cannon ball.</param>
/// <returns>Newly initialized cannon ball.</returns>
public static CannonBall Create(CannonBallManager manager, Space space, Vector3 position, Vector3 initialVelocity)
{
CannonBall toReturn = CannonBallPool.Take();
toReturn.Initialize(manager, space, position, initialVelocity);
return toReturn;
}
/// <summary>
/// Initializes this cannon ball.
/// </summary>
/// <param name="manager">Manager of this cannonball.</param>
/// <param name="space">Space that the physical form of this cannon ball resides in.</param>
/// <param name="position">Point to put the cannon ball.</param>
/// <param name="initialVelocity">Initial velocity of the cannon ball.</param>
public void Initialize(CannonBallManager manager, Space space, Vector3 position, Vector3 initialVelocity)
{
Manager = manager;
body.CollisionRules.Group = CannonBallCollisionGroup;
Space = space;
Body.CenterPosition = position;
Body.LinearVelocity = initialVelocity;
Space.Add(Body);
// Body.AngularVelocity = new Vector3(2, -3, 1); //random-looking angular velocity.
shouldDraw = false;
numFramesSinceInitialized = 0;
IsActive = true;
}