Scale + Translate transform at same time

Unity Engine
1

Hi guys

I am looking for a solution to create a ball movement which transforms by scale at the same time as movement (simulating a 2d ball flight). At the moment this is an example of my code which only contains the translate movement in a coroutine.

IEnumerator ServeA () {

        while (Vector2.Distance(ball.transform.position, serve_left_position[4]) > 0.01f) {
            ball.transform.position = Vector2.MoveTowards(ball.transform.position, serve_left_position [4], transitionspeed * speedmodifier * Time.deltaTime);
            yield return null;
        }

Is there a way to combine it easily into this script or will I have rework the code? Maybe even recommend an asset which will make my job easier?

Thanks in advance!

Aden

2

Perhaps something like this…

float t = 0.0f;

while( t < 1.0f )
{
      ball.transform.position = Vector2.Lerp( originalPostion, newPosition, t );
      ball.transform.scale = Vector2.Lerp( originalScale, newScale, t );
      t += Time.deltaTIme;
      yield return null;
}
3

Scaling and transform are done with 2 separate matrices but you can bake them together without a problem.
Rotating and translating can not be done at the same time since depending on what you do first you will get different results.

4

Technically, transform and scale can be done in the same matrix, where the last column is the translation vector and the diagonal is the scalling vector.

NOTE: The dimension of the matrix should be one more dimension of the vectors you are working with.