/// <summary>
/// Scroll the background horizontally to the left by a certain number of screens.
/// </summary>
/// <param name="screens">The number of screens to scroll left.</param>
/// <param name="speed">The speed at which to scroll the background.</param>
/// <param name="movingTransforms">An array of transforms that should move with the background.</param>
/// <param name="ScrollCompleteAction">An action to perform once the scroll has completed.</param>
private IEnumerator ScrollBackground(int screens, float speed, Transform[] movingTransforms, Action ScrollCompleteAction)
{
if (screens <= 0)
{
yield break;
}
IsScrolling = true;
OnScrollStart?.Invoke(this, EventArgs.Empty);
int screensScrolled = 0;
do
{
// Move background
transform.Translate(Vector2.left * speed * Time.deltaTime);
// Loop background when it passes the start position
if (transform.position.x < -startPosition.x)
{
Vector2 newPosition = startPosition;
newPosition.x -= (-startPosition.x - transform.position.x);
transform.position = newPosition;
screensScrolled++;
}
// Move objects with background
foreach (Transform movingTransform in movingTransforms)
{
movingTransform.Translate(Vector2.left * speed * Time.deltaTime);
}
yield return(null);
} while (screensScrolled < screens);
// Make sure background is pixel perfect
transform.position = pixelPerfectCamera.RoundToPixel(transform.position);
IsScrolling = false;
OnScrollComplete?.Invoke(this, EventArgs.Empty);
ScrollCompleteAction?.Invoke();
}
///<summary>
// Invokes the OnScrollComplete event
///</summary>
public void InvokeOnScrollComplete <T>(T sender, HorizontalBar bar)
{
Debug.Log($"[{Time.time}] OnScrollComplete Invoked by {sender.ToString()}");
OnScrollComplete?.Invoke(bar);
}