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5.4 breaks SimpleCCD IK when scale.x = -1

Discussion in '2D' started by chdrvn, Jul 28, 2016.

  1. chdrvn

    chdrvn

    Joined:
    Dec 4, 2013
    Posts:
    23
    Ive been using the simpleCCD.cs IK script for awhile now (
    ).
    Just installed 5.4 and my connections start spinning around like crazy when my character is flipped(scale.x = -1).

    When I comment out this line:
    // Flip sign if character is turned around
    angle *= Mathf.Sign(transform.root.localScale.x);

    it stops the spinning, but the angle limits are still backwards. Looking through the release notes briefly I dont see anything that should affect the 2d physics like this. Everything worked fine for many previous versions of unity.

    Any one else experiencing this? Or bored enough to help a brother out?
     
    chdrvn, Jul 28, 2016
    #1
    MrEsquire likes this.

  2. chdrvn

    chdrvn

    Joined:
    Dec 4, 2013
    Posts:
    23
    Last edited: Aug 5, 2016
    chdrvn, Aug 2, 2016
    #2

  3. sir_luke

    sir_luke

    Joined:
    Aug 19, 2014
    Posts:
    46
    Hey, thank you for posting the solution, you saved me lots of headaches... But I'm still asking myself what broke the code in 5.4: I guess the problem was in the ClampAngle method, which stopped working with "flipped" angles (angle *= Mathf.Sign(AngleSignTransform.localScale.x)...
    Is something changed with localScale inheritance in 5.4?
     
    sir_luke, Sep 19, 2016
    #3