78 lines
2.5 KiB
C#
78 lines
2.5 KiB
C#
using UnityEngine;
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using System.Collections;
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namespace BaseGames.Player.States
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{
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/// <summary>
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/// 地面冲刺状态（架构 05_PlayerModule §2 + §12）。
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/// 施加水平位移 + 无敌帧；冲刺期间重力归零，结束后恢复；
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/// 需解锁 AbilityType.Dash 才能进入（PlayerController 负责条件检查）。
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/// </summary>
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public class DashState : PlayerStateBase
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{
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private float _timer;
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private float _cooldownTimer;
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private int _facingDir;
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public bool CanDash => _cooldownTimer <= 0f;
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/// <summary>冲刺状态期间应视为无敌，PlayerController 据此跳过受击硬直。</summary>
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public override bool IsInvincible => true;
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public DashState(PlayerController owner) : base(owner) { }
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public override void OnStateEnter()
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{
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Debug.Assert(Cfg != null, "[DashState] MovementConfig 未配置，请在 PlayerController Inspector 中绑定 MovementConfig SO。", _owner);
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_facingDir = Owner.FacingDirection;
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_timer = Cfg.DashDuration;
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// 无敌帧
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Stats?.BeginInvincibility(Cfg.DashDuration + 0.05f);
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// 关闭重力，施加冲刺速度
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Move?.SetGravityScale(0f);
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Move?.Dash(new Vector2(_facingDir, 0f), Cfg.DashSpeed);
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// 播放冲刺动画
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if (AnimCfg?.Dash != null) Anim?.Play(AnimCfg.Dash);
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}
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public override void OnStateUpdate()
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{
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_timer -= Time.deltaTime;
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if (_timer <= 0f)
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EndDash();
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}
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public override void OnStateExit()
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{
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// 恢复默认重力
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Move?.SetGravityScale(Cfg.DefaultGravityScale);
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_cooldownTimer = Cfg.DashCooldown;
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}
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public override void OnStateFixedUpdate()
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{
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// 冲刺期间保持冲刺速度（防止摩擦力减速）
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if (_timer > 0f)
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Move?.Dash(new Vector2(_facingDir, 0f), Cfg.DashSpeed);
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}
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private void EndDash()
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{
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if (Move != null && Move.IsGrounded)
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Owner.TransitionTo(Owner.GetState<IdleState>());
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else
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Owner.TransitionTo(Owner.GetState<FallState>());
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}
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/// <summary>每帧减少冷却（由 PlayerController.Update 调用）。</summary>
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public void TickCooldown(float dt)
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{
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if (_cooldownTimer > 0f) _cooldownTimer -= dt;
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}
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}
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}
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