private void OnEnable()
{
objGravitate = GetComponent <Gravitate>();
objRigidbody = GetComponent <Rigidbody2D>();
objPhysicsProperties = GetComponent <PhysicsProperties>();
objOrbitTracker = GetComponent <OrbitTracker>();
Managers.ObjectTracker.Instance.RegisterObject(this);
}
public void ApplyGravity(Gravitate objToGravitate)
{
Rigidbody2D rbToGravitate = objToGravitate.objSpaceObj.objRigidbody;
Vector2 direction = objSpaceObj.objRigidbody.position - rbToGravitate.position;
float distanceSquared = direction.sqrMagnitude;
float distanceFromCenter = (objPhysicsProperties.Radius + objToGravitate.objPhysicsProperties.Radius);
//Debug.Log("Dist from center: " + distanceFromCenter + " | Distance: " + direction.magnitude);
if (direction.magnitude > distanceFromCenter)
{
float gravitationMag = G * (objSpaceObj.objRigidbody.mass * rbToGravitate.mass) / distanceSquared;
Vector2 force = direction.normalized * gravitationMag;
rbToGravitate.AddRelativeForce(force, ForceMode2D.Force);
if (force.SqrMagnitude() > MIN_THRESHOLD)
{
if (!gravitatingObjects.Contains(objToGravitate))
{
gravitatingObjects.Add(objToGravitate);
if (objSpaceObj.objRigidbody.mass >= objToGravitate.objSpaceObj.objRigidbody.mass)
{
if (OnObjectEnteredGravitationalPull != null)
{
OnObjectEnteredGravitationalPull(objSpaceObj, objToGravitate.objSpaceObj);
}
}
}
}
else if (gravitatingObjects.Contains(objToGravitate))
{
gravitatingObjects.Remove(objToGravitate);
if (OnObjectExitedGravitationalPull != null)
{
if (objSpaceObj.objRigidbody.mass >= objToGravitate.objSpaceObj.objRigidbody.mass)
{
Debug.Log("OUT OF GRAVITATIONAL RANGE");
OnObjectExitedGravitationalPull(objSpaceObj, objToGravitate.objSpaceObj);
}
}
}
}
else
{
//Absorb!
PhysicsProperties.AbsorbObject(objSpaceObj, objToGravitate.objSpaceObj);
}
}
private void FixedUpdate()
{
if (Managers.GameState.Instance.IsState(GameState.EnumGameState.RUNNING))
{
for (int i = 0; i < activeObjectsInUniverse.Count; ++i)
{
Gravitate gravitator = activeObjectsInUniverse[i].objGravitate;
for (int j = 0; j < activeObjectsInUniverse.Count; ++j)
{
Gravitate objToGravitate = activeObjectsInUniverse[j].objGravitate;
if (gravitator != objToGravitate)
{
gravitator.ApplyGravity(objToGravitate);
}
}
gravitator.objPhysicsProperties.UpdatePhysicsProperties();
}
}
}
bool impulseGiven; // prevents altered acceleration to be considered more than one FixedUpdate
// Use this for initialization
void Start()
{
grav = GetComponent <Gravitate>();
currentVelocity = 0;
}
