/// <summary>
/// Register a FieldGenerator with EMController. Called automatically by every FieldGenerator on scene start or
/// upon its creation, whichever is earlier.
/// </summary>
/// <param name="NewFieldGenerator">FieldGenerator to register.</param>
public void RegisterFieldGenerator(FieldGenerator NewFieldGenerator)
{
// Make sure new field generator isn't already registered
if (fieldGenerators.Contains(NewFieldGenerator))
{
return;
}
// Add new field generator
fieldGenerators.Add(NewFieldGenerator);
// Register field type
RegisterFieldType(NewFieldGenerator.generatedField);
OnFieldGeneratorRegistered?.Invoke(NewFieldGenerator);
}
// Start is called before the first frame update
protected virtual void Start()
{
if (!RigidBody)
{
RigidBody = gameObject.GetComponent <Rigidbody>();
}
if (!associatedGenerator)
{
FieldGenerator generator = GetComponent <FieldGenerator>();
if (generator)
{
if (generator.generatedField == fieldReactingTo)
{
associatedGenerator = GetComponent <FieldGenerator>();
}
}
}
}
/// <summary>
/// Calculate the value of the <paramref name="field"/> at world-space <paramref name="position"/>.
/// If <paramref name="generatorToExclude"/> is specified, it is left out of the calculation, e.g. for
/// calculating the electric field at a point charge due to other charges.
/// </summary>
/// <param name="position"></param>
/// <param name="field"></param>
/// <param name="generatorToExclude"></param>
/// <returns>Direction and magnitude of the field.</returns>
public Vector3 GetFieldValue(Vector3 position, InteractionField field, FieldGenerator generatorToExclude = null)
{
Vector3 fieldValue = new Vector3(0, 0, 0);
foreach (FieldGenerator fieldGenerator in fieldGenerators)
{
if (generatorToExclude)
{
if (fieldGenerator == generatorToExclude)
{
continue;
}
}
if (fieldGenerator.generatedField == field)
{
fieldValue = fieldValue + fieldGenerator.FieldValue(position);
}
}
return(fieldValue);
}
/// <summary>
/// Removes a FieldGenerator from EMController's registry. Called automatically by all FieldGenerators on their
/// destruction.
/// </summary>
/// <param name="RemoveFieldGenerator">FieldGenerator to remove.</param>
public void UnRegisterFieldGenerator(FieldGenerator RemoveFieldGenerator)
{
fieldGenerators.Remove(RemoveFieldGenerator);
OnFieldGeneratorUnregistered?.Invoke(RemoveFieldGenerator);
}
