@Override
    public int hashCode() {
        int hash = 3;
        hash = 79 * hash + this.animStack.hashCode();
        hash = 79 * hash + this.animLayer.hashCode();
        hash = 79 * hash + this.node.hashCode();
        return hash;
    }
Counts how many keyframes there are in the included curves.

@return the total number of keyframes (&ge;0)
jme3-plugins/src/fbx/java/com/jme3/scene/plugins/fbx/anim/FbxToJmeTrack.java