zeling_v2/Assets/_Game/Scripts/Player/States/IdleState.cs

using UnityEngine;

namespace BaseGames.Player.States
{
    /// <summary>闲置状态。默认入口状态，播放 Idle 动画。</summary>
    public class IdleState : PlayerStateBase
    {
        public IdleState(PlayerController owner) : base(owner) { }

        public override void OnStateEnter()
        {
            if (AnimCfg?.Idle != null)
                Anim.Play(AnimCfg.Idle);
            Move?.ZeroHorizontalVelocity();
            // 落地时重置空中能力计数器及抓墙记录
            Owner.ResetAirJumps();
            Owner.GetState<DashState>()?.ResetAirDash();
            Owner.GetState<WallSlideState>()?.ResetWallGrab();
            Owner.SetPostWallJump(false);
        }

        public override void OnStateUpdate()
        {
            if (!Move.IsGrounded)
            {
                _owner.TransitionTo(_owner.GetState<FallState>());
                return;
            }
            if (Buffer.ConsumeJump())
            {
                _owner.TransitionTo(_owner.GetState<JumpState>());
                return;
            }
            // 地面攻击：Move Y > 0 → 上劈；其余 → 普通连击
            if (Buffer.ConsumeAttack())
            {
                if (Input.MoveInput.y > 0.5f)
                    _owner.TransitionTo(_owner.GetState<UpAttackState>());
                else
                    _owner.TransitionTo(_owner.GetState<AttackState>());
                return;
            }
            // 地面冲刺：先确认能力与冷却均满足，再消耗缓冲，避免无操作时静默吃掉输入
            var ds = Owner.GetState<DashState>();
            if (ds != null && ds.CanDash
                && Stats != null && Stats.HasAbility(AbilityType.Dash)
                && Buffer.ConsumeDash())
            {
                _owner.TransitionTo(ds);
                return;
            }
            if (Mathf.Abs(Input.MoveInput.x) > 0.1f)
            {
                _owner.TransitionTo(_owner.GetState<RunState>());
            }
        }

        public override void OnStateFixedUpdate()
        {
            // 离地检测（与 CheckGrounded 同帧在 FixedUpdate 中执行，立即响应离地事件）
            // OnStateUpdate 中仍保留同样的检测作为跨帧补充，两者不会发生双重转换：
            // 本帧若在 FixedUpdate 中转换到 FallState，Update 调用的将是 FallState.OnStateUpdate()。
            if (!Move.IsGrounded)
                _owner.TransitionTo(_owner.GetState<FallState>());
        }
    }
}