using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System;

namespace Wing.Gizmos
{
    public class GizmosMove : GizmosBase
    {
        public delegate void MoveEventHandler(float dx, float dy, float dz);

        public event MoveEventHandler OnMove;
        public event Action OnMoveEnd;
        // Use this for initialization

        private Vector3 mTotal = Vector3.zero;

        protected override void OnInit()
        {
            ConstructAxis("X", EGizmosAxisType.X);
            ConstructAxis("Y", EGizmosAxisType.Y);
            ConstructAxis("Z", EGizmosAxisType.Z);
            ConstructAxis("LockX", EGizmosAxisType.LockX);
            ConstructAxis("LockY", EGizmosAxisType.LockY);
            ConstructAxis("LockZ", EGizmosAxisType.LockZ);
        }

        protected override void OnDragDelta(GameObject go, float dx, float dy, float dz)
        {
            //精度捕捉
            Vector3 delta = new Vector3(dx, dy, dz);
            Vector3 newPos = Vector3.zero;
            ISnap snap = SnapFactory.Instance.Get(ESnapType.Move);
            if (snap.Snap(mTotal + delta, ref newPos))
            {
                dx = newPos.x - mTotal.x;
                dy = newPos.y - mTotal.y;
                dz = newPos.z - mTotal.z;
            }
            mTotal += new Vector3(dx, dy, dz);
            ///////

            base.OnDragDelta(go, dx, dy, dz);
            transform.Translate(dx, dy, dz);
            if (OnMove != null)
            {
                OnMove(dx, dy, dz);
            }
        }

        public void Move(float dx,float dy, float dz)
        {
            transform.Translate(dx, dy, dz);
            if (OnMove != null)
            {
                OnMove(dx, dy, dz);
            }

            if (OnMoveEnd != null)
            {
                OnMoveEnd();
            }
        }

        protected override void OnDragEnd(GameObject go)
        {
            base.OnDragEnd(go);
            if (OnMoveEnd != null)
            {
                OnMoveEnd();
            }
        }
    }
}