using System.Collections.Generic;
using UnityEngine;

namespace CreatureControl {

    [System.Serializable]
    public class Antenna {
        private Transform _scape;
        public Transform scape {
            get => this._scape;
            set {
                this._scape = value;
                this._scapeLength = 0;
            }
        }
        private Transform _funiculus;
        public Transform funiculus {
            get => this._funiculus;
            set {
                this._funiculus = value;
                this._scapeLength = 0;
                this._funiculusLength = 0;
            }
        }

        private Transform _end;

        private float _scapeLength = 0;
        public float scapeLength {
            get {
                if (_scapeLength <= 0 && this.scape != null && this._funiculus != null)
                    _scapeLength = Vector3.Distance(this._scape.position, this._funiculus.position);
                return _scapeLength;
            }
        }
        private float _funiculusLength = 0;
        public float funuculusLength {
            get {
                if (_funiculusLength <= 0 && this._funiculus != null && this._end != null)
                    _funiculusLength = Vector3.Distance(this._funiculus.position, this._end.position);
                return _funiculusLength;
            }
        }

        public Side side;
        public bool isLeft => side == Side.Left;
        public bool isRight => side == Side.Right;
        
        // Movement it seems:
        // head-scape joint: mainly 2 degrees of freedom: pitch and yaw. Limited roll is possible
        // scape-funiculus joint: mainly 1 degree of freedom: pitch. Limited yaw is possible
    }
}