/// <summary>
/// A standard game object used for games
/// </summary>
/// <param name="name">Name of the GameObject's object type name
/// Ex: LightSource : GameObject { ... }
/// LightSource sun = new LightSource("Sun");
/// LightSource torch1 = new LightSource("Torch"), torch2 = new LightSource("Torch");
/// </param>
public GameObject(string name)
{
if (string.IsNullOrEmpty(name))
throw new ArgumentNullException("name");
m_name = name;
m_pos = m_velocity = m_accel = Vector.Zero;
}
/// <summary>
/// Updates the GameObject
/// </summary>
/// <param name="updateTime">Time, in milliseconds, since last update</param>
public void Update(float updateTime)
{
m_velocity += m_accel * (float)updateTime;
m_pos += m_velocity;
}
/// <summary>
/// Calculates the reflection vector between this
/// and another vector
/// </summary>
/// <param name="normal">Vector normal to use</param>
/// <returns>Returns reflected vector</returns>
public Vector Reflect(Vector normal)
{
float mult = 2f * (m_x * normal.m_x + m_y * normal.m_y) / (normal.m_x * normal.m_x + normal.m_y * normal.m_y);
return new Vector(m_x - normal.m_x * mult, m_y - normal.m_y * mult);
}
/// <summary>
/// Calculates the reflection vector between this
/// and another vector and stores it in this vector
/// </summary>
/// <param name="normal">Vector normal to use</param>
public void ReflectInPlace(Vector normal)
{
float mult = 2f * (m_x * normal.m_x + m_y * normal.m_y) / (normal.m_x * normal.m_x + normal.m_y * normal.m_y);
m_x -= normal.m_x * mult;
m_y -= normal.m_y * mult;
}
/// <summary>
/// Calculates the angle between this vector
/// and one other vector
/// </summary>
/// <param name="other">Vector to use for calculations</param>
/// <returns>Angle, in degrees, between the two vectors</returns>
public float AngleBetween(Vector other)
{
return (float)Math.Acos(Normalize() * other.Normalize() * 180f / PI);
}
