/// <summary>
/// Get the collision force between two bodies
/// Remember, bullets go another way
/// </summary>
/// <param name="selfRb"></param>
/// <param name="otherRb"></param>
/// <returns></returns>
public static float GetCollisionForce(Rigidbody selfRb, Rigidbody otherRb)
{
// Ponemos esto para evitar errores
// Pero esto no dbería ocurrir
if (selfRb == null)
{
return(0);
}
//
RigidbodyExtraInfo selfRbExtraInfo = selfRb.GetComponent <RigidbodyExtraInfo>();
// El otherRb puede ser nulo
float otherImpactForce = 0;
if (otherRb != null)
{
RigidbodyExtraInfo otherRbExtraInfo = otherRb.GetComponent <RigidbodyExtraInfo>();
//otherImpactForce = otherRb.velocity.magnitude * otherRb.mass;
otherImpactForce = GeneralFunctions.GetBodyKineticEnergy(otherRb, otherRbExtraInfo);
}
// El propio no puede serlo
//float selfImpactForce = selfRb.velocity.magnitude * selfRb.mass;
float selfImpactForce = GeneralFunctions.GetBodyKineticEnergy(selfRb, selfRbExtraInfo);
//
float impactForce = otherImpactForce + selfImpactForce;
return(impactForce);
}
/// <summary>
/// Gives the kinetic energy of a rigidbody
/// </summary>
/// <param name="rb"></param>
/// <returns></returns>
public static float GetBodyKineticEnergy(Rigidbody rb, RigidbodyExtraInfo rbExtraInfo)
{
//
if (rbExtraInfo == null)
{
Debug.Log("Asking kinetic energy of not prepared object: " + rb.name);
return(0);
}
//
float bodySpeedVariation = Math.Abs((rb.velocity - rbExtraInfo.PreviousVelocity).magnitude);
float bodyMass = rb.mass;
float bodyKE = bodyMass * Mathf.Pow(bodySpeedVariation, 2) / 2;
Debug.Log("Impact of " + rb.name + ", speed variation of " + bodySpeedVariation + ", impacting with a force of " + bodyKE + " Joules");
return(bodyKE);
}
