86 lines
3.1 KiB
C#
86 lines
3.1 KiB
C#
// Assets/Scripts/Player/States/SwimState.cs
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// 游泳状态：玩家在液体中时使用（Architecture 21_LiquidPuzzleModule §5）
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// ⚠️ 遵循 PlayerStateBase 构造函数注入模式（非 MonoBehaviour）
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// ⚠️ 输入通过 Input.MoveInput / Input.JumpStartedEvent 访问（项目实际 API）
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using BaseGames.Player;
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using BaseGames.World.Liquid;
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using UnityEngine;
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namespace BaseGames.Player.States
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{
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/// <summary>
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/// 游泳状态：玩家在液体中时使用。
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/// 需要 AbilityType.Swim 已解锁；若未解锁则由 WaterDangerState 触发溺水流程。
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/// 由 PlayerController 在收到 EVT_LiquidEntered 后切换进入。
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/// </summary>
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public class SwimState : PlayerStateBase
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{
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private LiquidPhysicsConfigSO _currentPhysics;
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private float _originalGravity;
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public SwimState(PlayerController owner) : base(owner) { }
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/// <summary>由 PlayerController 在切换状态前调用，注入当前液体区域的物理配置。</summary>
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public void SetPhysicsConfig(LiquidPhysicsConfigSO config) => _currentPhysics = config;
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public override void OnStateEnter()
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{
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_originalGravity = Move.Rb.gravityScale;
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Move.SetGravityScale(_currentPhysics?.GravityScale ?? 0.3f);
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if (AnimCfg?.SwimIdle != null)
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Anim?.Play(AnimCfg.SwimIdle);
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Input.JumpStartedEvent += OnJumpStarted;
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}
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public override void OnStateExit()
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{
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Input.JumpStartedEvent -= OnJumpStarted;
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Move.SetGravityScale(_originalGravity);
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}
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public override void OnStateUpdate()
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{
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var input = Input.MoveInput;
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var maxSpeed = _currentPhysics?.MaxSwimSpeed ?? 4f;
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var accel = _currentPhysics?.SwimAcceleration ?? 8f;
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var drag = _currentPhysics?.DragCoefficient ?? 3f;
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var rb = Move.Rb;
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if (input != Vector2.zero)
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{
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var targetVel = input * maxSpeed;
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rb.velocity = Vector2.MoveTowards(rb.velocity, targetVel, accel * Time.deltaTime);
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if (AnimCfg?.SwimMove != null)
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Anim?.Play(AnimCfg.SwimMove);
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}
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else
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{
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// 水下浮力（持续向上的微弱力）
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rb.AddForce(Vector2.up * (_currentPhysics?.BuoyancyForce ?? 0.5f), ForceMode2D.Force);
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if (AnimCfg?.SwimIdle != null)
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Anim?.Play(AnimCfg.SwimIdle);
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}
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// 施加水阻
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rb.velocity *= 1f - drag * Time.deltaTime;
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}
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public override PlayerStateBase GetNextState()
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{
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// 离开液体区域由 PlayerController 订阅 EVT_LiquidExited 后切换到 FallState
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return null;
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}
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private void OnJumpStarted()
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{
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// 跳跃键 = 跃出水面冲量
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Move.Rb.AddForce(Vector2.up * (_currentPhysics?.SurfaceExitSpeed ?? 5f),
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ForceMode2D.Impulse);
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}
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}
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}
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