chore: initial commit

Assets/Scripts/Player/States/AttackState.cs

@@ -0,0 +1,65 @@
+using BaseGames.Combat;
+
+namespace BaseGames.Player.States
+{
+    /// <summary>
+    /// 地面攻击状态（3 段连击）。
+    /// 由 PlayerController 实例化，AttackEvent 触发切换。
+    /// 通过 Animancer 帧事件驱动 HitBox 激活/关闭。
+    /// </summary>
+    public class AttackState : PlayerStateBase
+    {
+        private int _comboIndex;
+
+        public AttackState(PlayerController owner) : base(owner) { }
+
+        public override void OnStateEnter()
+        {
+            _comboIndex = 0;
+            PlayAttackClip();
+            Input.AttackEvent += OnAttackInput;
+        }
+
+        public override void OnStateExit()
+        {
+            Input.AttackEvent -= OnAttackInput;
+            Owner.Combat?.DisableAllWeaponHitBoxes();
+        }
+
+        public override void OnStateUpdate() { }
+        public override void OnStateFixedUpdate() { }
+
+        // ── 内部 ──────────────────────────────────────────────────────────────
+
+        private void PlayAttackClip()
+        {
+            // ⚠️ 字段名 GroundAttacks（非 AttackChainClips）
+            var clip   = AnimCfg.GroundAttacks[_comboIndex];
+            var state  = Anim.Play(clip);
+            var events = state.Events(this);
+            events.OnEnd = OnClipEnd;
+
+            // HitBox 由 Animancer 归一化时间事件驱动
+            events.Add(0.3f,
+                () => Owner.Combat?.EnableWeaponHitBox(AttackDirection.Ground));
+            events.Add(0.6f,
+                () => Owner.Combat?.DisableAllWeaponHitBoxes());
+        }
+
+        private void OnClipEnd()
+        {
+            Input.AttackEvent -= OnAttackInput;
+            Owner.Combat?.DisableAllWeaponHitBoxes();
+            Owner.TryTransitionState(Owner.IdleState);
+        }
+
+        private void OnAttackInput()
+        {
+            if (_comboIndex < 2)
+            {
+                _comboIndex++;
+                PlayAttackClip();
+            }
+        }
+    }
+}