#define ANIM_CROSS_FADE
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PCAnimation : UnitAnimation
{
    public enum ELayer
    {
        Basic = 0,
        Attack,
        SwordAttack,
        GunAttack,
        UpperBody,
        LowerBody,
        Count,
    }


    // 动作名，和animator里的state对应
    public enum EAnimState
    {
        // layer 0 
        Idle = 0,
        Move,
        Jump,
        Hit,
        Attack,
        Rise,
        Stinger,
        Turn,
        Landing,

        AirAttack0,
        AirAttack1,
        AirAttack2,
        AirAttack3,

        Attack0,
        Attack1,
        Attack2,
        Attack3,
    }

#if !ANIM_CROSS_FADE
    // 切换动画
    public enum ETrigger
    {
        ToIdle,
        ToMove,
        ToJump,
        ToAttack,
        ToAirAttack,
        ToLanding,
    }
#endif

    private UnitActionData m_ActionData;

    public bool applyRootMotion { get; set; }// 动态设置root motion
    public bool applyRootCurve { get; set; } // 程序生成的root motion

    public override void Initialize()
    {
        base.Initialize();

        m_Animator = this.m_Owner.unitObj.GetComponent<Animator>();

        m_Animator.speed = 0;

        m_LayerInfo = new AnimatorLayerInfo[2];
        m_LayerInfo[0] = new AnimatorLayerInfo(this, m_Animator, (int)ELayer.Basic);
        //m_LayerInfo[1] = new AnimatorLayerInfo(this, m_Animator, ELayer.Attack);

        if (m_Animator == null)
        {
            LogHelper.LogError("没有挂Animator组件");
        }

        applyRootMotion = true;
    }

    public override void OnUpdate()
    {
        base.OnUpdate();

        UpdateLayer();
        UpdateAnimation();

        if (applyRootMotion)
            UpdateRootMotion();
        if (applyRootCurve)
            UpdateRootCurve();
    }

    void UpdateLayer()
    {
        m_LayerInfo[0].OnUpdate();
        return;
        for (int i = 0; i < m_LayerInfo.Length; ++i)
        {
            m_LayerInfo[i].OnUpdate();
        }
    }

    void UpdateAnimation()
    {
        m_Animator.speed = 1;
        m_Animator.Update(Time.deltaTime);
        m_Animator.speed = 0;
    }

    void UpdateRootMotion()
    {
        m_Owner.unitRootMotion.UpdateRootMotion();
    }

    void UpdateRootCurve()
    {
    }

    public void AnimIdle()
    {
#if ANIM_CROSS_FADE
        m_Animator.CrossFade("Idle", 0.2f, 0);
#else
        ResetAllTriggers();
        m_Animator.SetTrigger(ETrigger.ToIdle.ToString());
#endif
    }

    public void AnimMove()
    {
#if ANIM_CROSS_FADE
        m_Animator.CrossFade("Move", 0.01f, 0);
#else
        ResetAllTriggers();
        m_Animator.SetTrigger(ETrigger.ToMove.ToString());
#endif
    }

    public void AnimJump()
    {
#if ANIM_CROSS_FADE
        m_Animator.CrossFade("Jump", 0.01f);
#else
        ResetAllTriggers();
        SetTrigger(ETrigger.ToJump);
#endif
    }

    public void AnimAirAttack(int id)
    {
        m_Owner.unitCollider.OnAnimationChange();
#if ANIM_CROSS_FADE
        m_Animator.CrossFade("AirAttack" + id, 0.05f);
#else
        ResetAllTriggers();
        SetTrigger(ETrigger.ToAirAttack);
#endif
    }

	public void AnimAttack(int id)
	{
        m_Owner.unitCollider.OnAnimationChange();
		m_Animator.CrossFade("Attack" + id, 0.05f);
	}

	public void AnimAirDash()
    {
        if (layers[0].stateInfo.IsName("AirDash"))
        {
            m_Animator.Play("AirDash", 0, 0);
        }
        else
        {
            m_Animator.CrossFade("AirDash", 0.05f);
        }
    }

    public void AnimLanding()
    {
#if ANIM_CROSS_FADE
        m_Animator.CrossFade("Landing", 0.05f);
#else
        ResetAllTriggers();
        SetTrigger(ETrigger.ToLanding);
#endif
    }

    public void AnimLandingGround()
    {
#if ANIM_CROSS_FADE
        m_Animator.CrossFade("LandingGround", 0.00f);
#else
        ResetAllTriggers();
        SetTrigger(ETrigger.ToLanding);
#endif
    }

#if !ANIM_CROSS_FADE
    void ResetAllTriggers()
    {
        var values = Enum.GetValues(typeof(ETrigger));
        foreach (var e in values)
        {
            m_Animator.ResetTrigger(e.ToString());
        }
    }
#endif

    private void Play(string animState, float fade = 0.1f, float offset = 0f, int layer = 0)
    {
        m_Animator.CrossFade(animState, fade, layer, offset);
    }
}