thank you so much

Is this thread still alive? I want to use playmaker with Spine, but I don't know if many years later this actions works nowadays.

Hi everyone,
We tried to achieve this smooth effect in the game by moving the mouse around the character:

To do that, we spawn hierarchy on Unity and make a script (based on the law of sines) that allows the character's bones to follow the mouse here is the script:

public class BoneAim
{
    [SerializeField]
    public string boneName;
    [SerializeField]
    public float min;
    [SerializeField]
    public float max;
}


private float boneRotation( BoneAim boneAim, Spine.Bone topBone)
    {
        /****************************************************************************
         * A: Wrist     * 
         * B: Head      * DistB = DirAC.magnitude (distance between wrist and target)
         * C: Target    * DistC = DirAB.magnitude (distance between bones)
         ****************************************************************************/
        //Bone
        Spine.Bone bone = skeleton.FindBone(boneAim.boneName);
        string name = boneAim.boneName;
        //bone.UpdateWorldTransform();
        

    //World Positions:
    //wrist
    Vector3 A = bone.GetWorldPosition(this.transform);
    //Head
    Vector3 B = topBone.GetWorldPosition(this.transform);
    //target
    Vector3 C = GameManager.instance.getCursor().cursorPosition();

    //Directions
    Vector3 dirAB = B  - A;
    Vector3 dirAC = C  - A;
    Vector3 dirBA = A  - B;
    Vector3 dirBC = C  - B;
    Vector3 dirCA = A  - C;
    Vector3 dirCB = B  - C;

    //Angles (original, debug only, we will change values after recalculate)
    float angleA = Vector2.Angle(dirAB, dirAC);
    float angleB = Vector2.Angle(dirBC, dirBA);
    float angleC = Vector2.Angle(dirCA, dirCB);

    /*************
     * RECALCULATING *
     *************/

    //To calculate AngleC we need to knoe distB, distC and anlgeB
    //disB / sinB = distC / sinC
    //
    //sinC = disC * sinB / distB
    //after that-> anlgeA = 180 - angleB - angleC

    //Rot topBone (correct)
    angleB = getBoneWorldRotation(topBone);
    Vector2 dirB = angleToVector2(angleB);
    dirB.Normalize();
    //Origanl head angle (angleB) that's the only angle we know
    angleB = Vector2.Angle(dirB, dirBA.normalized);
    float distB = dirAC.magnitude;
    float distC = dirAB.magnitude;
    float sinB = Mathf.Sin(angleB * Mathf.Deg2Rad);
    float sinC = distC * sinB / distB;
    //AngleC
    angleC = Mathf.Asin(sinC) * Mathf.Rad2Deg;
    //AngleA (world space)
    angleA = 180 - angleC - angleB;
    Debuggin.add(name, "angleA:" + angleA);
    //Exist the angle
    if (!float.IsNaN(angleA))
    {
        float angleAOriginal = Vector3.Angle(dirAB, dirAC);
        //rotation += world andle - originalWorldAngle
        float angleRot = angleA - angleAOriginal;
        if (angleRot < boneAim.min)
            angleRot = boneAim.min;
        else if (angleRot > boneAim.max)
            angleRot = boneAim.max;
        bone.rotation += angleRot;
    }
    bone.UpdateWorldTransform();

    return angleA;
}


private float getBoneWorldRotation(Spine.Bone bone)
{
    float _rot = bone.WorldRotationX - 90;
    if (_rot < -180)
        _rot += 360;
    return _rot;
}


public static Vector2 angleToVector2(float degrees)
{
    float rad = degrees * Mathf.Deg2Rad;
    return new Vector2(Mathf.Cos(rad), Mathf.Sin(rad));
} 

But we don't know why, in the game seems like the character has some problem with the angles:

We want to rotate bones in a smooth way, here is our schedule:

Do you have any idea of what could have hapened?

Thanks

skeletonAnim.UpdateLocal += skeletonAnimation_UpdateWorld;

boneRotation is being called in "skeletonAnimation_UpdateWorld", that we added to UpdateLocal from skeletonAnimation.

hello akshaysule,

did you try the solution above?, it works for me.

Hello guys,

Xelnath wrote

Do you have multiple tracks running or just one?

Nope, i just have one

Thank you Pharan, this extra lines works and fix the problem. I don't have extra sprites any more.

One more question, i have two characters in the final game (the images up here belongs to test project). I have one character with SkeletonAnimation and another with Mecanim. I have this issue in Mecanim too.
Do you know if there any way to fix this issue in Mecanim too?

Thanks.

For this I use SkeletonAnimation, what is SkeletonGraphic?

I tried a lot of things, and nothing changes, for example I put this after every animation:

skeletonAnimation.skeleton.SetToSetupPose(); 

and got same results, sprites still inherit properties.

What can i do?

Hi,

When i export animations into Unity and play it, some sprites do weird things.
It seems sprites inherit some properties when animation ends.

For example, i have this three animations in Spine:
-walk
-crawling
-grab an object

 Loading Image

While in Spine looks good, in Unity the animation's sprites are completely mess:

 Loading Image

How i fix that?

I use Spine 3.3.07 and runtime release yesterday (Jul-11).