protected void Start()
{
player = GameObject.Find ("Player");
magnet = gameObject;
body = player.GetComponent<Rigidbody>();
controller = player.GetComponent<PlayerController> ();
playerTotalForce = player.GetComponent<TotalForce>();
}
public void CalculateForces(double t)
{
TotalForce.X = 0; TotalForce.Y = 0;
foreach (Force f in Forces) // merge all applied forces into one vector, then use it as acceleration
{
if (f.GetType() == typeof(Gravity))
{
TotalForce += ((f.Direction * f.Amplitude) * Mass); // G in Newtons
}
else if (f.GetType() == typeof(AirResistance))
{
var ar = (f as AirResistance);
ar.DragCoefficient = 1.05;
ar.ObjectVelocity = Velocity.Length;
ar.Direction = -(TotalForce.Normalized());
ar.Area = Volume / Depth;
TotalForce += (f.Direction * f.Amplitude); // other in Newtons
}
else
{
TotalForce += (f.Direction * f.Amplitude); // other in Newtons
}
}
// http://en.wikipedia.org/wiki/Equations_for_a_falling_body
if (t != 0)
{
Velocity += (TotalForce / Mass) / GUI.FPS;
// 2
//this.PositionX += ((TotalForce.X / Mass) * t) - (Velocity.X / (2 * t));
//this.PositionY += ((TotalForce.Y / Mass) * t) - (Velocity.Y / (2 * t));
PositionX += (Velocity.X - (TotalForce.X / (Mass * 2))) / GUI.FPS;
PositionY += (Velocity.Y - (TotalForce.Y / (Mass * 2))) / GUI.FPS;
}
}
