Fake 2d object carousel with swipe

Questions & Answers
1

Hello,

Seems simple in theory, I am trying to create the effect of spinning an object on mobile swipe, but using a sequence of 12 sprites.
Like spinning a car image sequence left to right or vice versa, on finger input.
I’ve searched but maybe I’m not using the correct terminology perhaps.

2

Didn’t test it, you may have to play with this a bit.

public List<Sprite> sprites; // the list of sprites to assign in the editor
private int current; // the current index
private Vector2 _delta; // the pointer delta
public SpriteRenderer spriteRenderer; // the sprite renderer to assign in the editor

void Update ()
{
	if (Input.touchCount > 0) // if there's at least one finger on screen
	{
		Touch touch1 = Input.touches[0]; // assign the first touch
		switch (touch1.phase)
		{
			case TouchPhase.Began : // if we just touched
				_delta = Vector2.zero; // reset
				break;
			case TouchPhase.Moved : // if we move
				_delta += touch1.deltaPosition; // update the pointer delta
				break;
			case TouchPhase.Ended : // if we just released
				_delta = Vector2.zero; // reset
				break;
			default:
				break;
		}
		if (Mathf.Abs (_delta.x) > 0.5f) // if pointer delta on x is greater than 0.5
		{
			current += (_delta.x > 0) ? 1 : -1; // move current to +1 if positive, -1 otherwise
			if (current == -1) // if out of bounds below 0
				current = sprites.Count-1; // reset to max index
			if (current == sprites.Count) // if out of bounds above max
				current = 0; // reset to 0
			spriteRenderer.sprite = sprites[current]; // replace the sprite renderer with the sprite from the list
		}
	}
}
3

A quick test and it works quite well it seems. Only a bit sensitive, next step will be for me to slow it down in some way. I can’t thank you enough UnityCoach. U Certainly live up to your name :slight_smile: