Modify an IK (inverse kinematics) element

The process of modifying an IK element (left foot, right foot, left hand or rght hand) is exactly the same as always was. Basically changing the Animator component directly.

Since the Animator could be anywhere (within the hierarchy), you cannot just use the message Unity provides for this (OnAnimatorIK), because the state script needs to be in the same object. In order to use this message you need to override a special virtual method (from the CharacterState) called UpdateIK.

For example:

public override void UpdateIK(int layerIndex)
{
    // Set the weight
    CharacterActor.Animator.SetIKPositionWeight(avatarIKGoal, positionWeight);
    
    // Set the position
    CharacterActor.Animator.SetIKPosition(avatarIKGoal, position);    

}