/// <summary>
/// This returns the average position and speed of the collisions
/// </summary>
public static Tuple<Point3D, double> GetAverageCollision(MaterialCollision[] collisions, Body body)
{
if (collisions == null || collisions.Length == 0)
{
throw new ArgumentException("At least one collision must be passed in");
}
double sumX = 0;
double sumY = 0;
double sumZ = 0;
double sumSpeed = 0;
foreach (MaterialCollision collision in collisions)
{
Point3D position;
Vector3D normal;
double speed;
collision.GetContactPositionAndNormalWorld(out position, out normal, out speed, body);
sumX += position.X;
sumY += position.Y;
sumZ += position.Z;
sumSpeed += Math.Abs(speed);
}
Point3D avgPosition = new Point3D(sumX / collisions.Length, sumY / collisions.Length, sumZ / collisions.Length);
double avgSpeed = sumSpeed / collisions.Length;
return Tuple.Create(avgPosition, avgSpeed);
}
public WeaponDamage CalculateDamage(MaterialCollision[] collisions)
{
if (!_isFullySetUp || collisions.Length == 0)
{
return null;
}
double damangeMult = GetDamageMultiplier();
if (Math1D.IsNearZero(damangeMult))
{
return null;
}
var avgCollision = MaterialCollision.GetAverageCollision(collisions, _bot.PhysicsBody);
//TODO: See if this position is along the ramming direction
double speed = avgCollision.Item2 / 10; // a speed of 10 is considered an average impact speed
double damage = speed * damangeMult;
WeaponDamage retVal = new WeaponDamage(avgCollision.Item1, damage);
// The act of hitting something needs to stop the ram, otherwise, they just keep pushing against the item
// and continue to do damage
StopRamming();
return retVal;
}
