iTween MoveTo Rotation

Questions & Answers
1

Hello everyone. I want to know how do I fix the rotation on the y axis in my 2d game. When running the game and change the rotation on the y-axis does not know how to fix it. In figure 2 is as it is running. I want to make it follow the path as in image 2. Tried a few things but did not work. Can anyone help?

iTween.MoveTo(gameObject, iTween.Hash("path", iTweenPath.GetPath("caminho"),"time", 10,"easetype",iTween.EaseType.linear, "orienttopath", true));

30391-1.jpg
30391-1.jpg876×368 51.1 KB

30392-2.jpg
30392-2.jpg881×366 50.5 KB

2

‘orienttopath’ has the forward (positive ‘z’ side) of an object aligned to the path. So one solution is to use an empty game object.

  • Create an empty game object
  • Make your sprite a child of the empty game object
  • Set the childs local position to (0,0,0) so the child is at the same position as the parent.
  • Rotate the child so that whatever side is the front (right side I think from your picture) is aligned with the forward vector of the empty game object.
  • iTween.MoveTo() is called using the empty game object

A second solution I’ll mention but not give in-depth details is not use iTween.MoveTo() instead use iTween.PutOnPath() and/or iTween.PointOnPath(). With these functions, you’ll have to write a very simple bit of code to move along the path, but you will also then have the ability to calculate your own rotation frame-by-frame. This solution may be necessary if the previous solution end up flipping the sprite.