浮力

Assets/Scripts/FloatBobberControllerProV4.cs

@@ -0,0 +1,206 @@
+using UnityEngine;
+
+public enum BobberState
+{
+    LyingDown,     // 躺漂
+    RisingUp,      // 起漂
+    Standing,      // 正常站立
+    Bottom,        // 挂底
+    TopLift,       // 顶漂
+    DownPull,      // 黑漂
+    Nibble         // 小顿口
+}
+
+public class FloatBobberControllerProV4 : MonoBehaviour
+{
+    [Header("Environment")]
+    public float waterLevel = 0f;
+
+    [Header("Float Settings")]
+    public float floatLength = 0.20f;      // 漂总长度
+    public float buoyancyForce = 0.35f;    // 浮力强度
+    public float mass = 0.015f;            // 重量
+    public float tiltRecoverySpeed = 3f;   // 漂恢复垂直速度
+    public float maxTiltAngle = 60f;       // 躺漂最大角度
+
+    [Header("Line Settings")]
+    public float lineTension = 0f;         // 动态线张力（由鱼影响）
+    public float bottomDrag = 1.5f;        // 铅坠触底时的阻力
+
+    [Header("State Machine")]
+    public BobberState state = BobberState.LyingDown;
+
+    // internal vars
+    private float verticalSpeed = 0f;
+    private float angle = 60f;      // 初始躺漂角度
+    private float lastHeight;
+    private float deltaY;
+
+    void Start()
+    {
+        lastHeight = transform.position.y;
+        state = BobberState.LyingDown;
+    }
+
+    void Update()
+    {
+        deltaY = transform.position.y - lastHeight;
+        lastHeight = transform.position.y;
+
+        ApplyPhysics();
+        ProcessStateMachine();
+        ApplyRotation();
+    }
+
+    // ---------------------------------------------------------------------
+    // 一切物理都由状态机控制
+    // ---------------------------------------------------------------------
+    void ProcessStateMachine()
+    {
+        switch (state)
+        {
+            case BobberState.LyingDown:
+                LyingDownBehaviour();
+                break;
+
+            case BobberState.RisingUp:
+                RisingUpBehaviour();
+                break;
+
+            case BobberState.Standing:
+                StandingBehaviour();
+                break;
+
+            case BobberState.Bottom:
+                BottomBehaviour();
+                break;
+
+            case BobberState.TopLift:
+                TopLiftBehaviour();
+                break;
+
+            case BobberState.DownPull:
+                DownPullBehaviour();
+                break;
+
+            case BobberState.Nibble:
+                NibbleBehaviour();
+                break;
+        }
+
+        AutoTransition();
+    }
+
+    // ---------------------------------------------------------------------
+    // 【状态 → 行为】
+    // ---------------------------------------------------------------------
+
+    void LyingDownBehaviour()
+    {
+        // 浮漂处于平躺，几乎无浮力
+        angle = Mathf.Lerp(angle, maxTiltAngle, Time.deltaTime * 1.5f);
+
+        // 水面浮力很小
+        verticalSpeed += (buoyancyForce * 0.1f - mass * 9.8f) * Time.deltaTime;
+    }
+
+    void RisingUpBehaviour()
+    {
+        // 浮漂正在被浮力慢慢扶正
+        angle = Mathf.Lerp(angle, 0, Time.deltaTime * (tiltRecoverySpeed * 0.7f));
+
+        // 浮力略加强
+        verticalSpeed += (buoyancyForce * 0.5f) * Time.deltaTime;
+    }
+
+    void StandingBehaviour()
+    {
+        // 完全立稳
+        angle = Mathf.Lerp(angle, 0, Time.deltaTime * tiltRecoverySpeed);
+
+        // 浮力与重力平衡，小幅波动
+        verticalSpeed += Mathf.Sin(Time.time * 4f) * 0.001f;
+    }
+
+    void BottomBehaviour()
+    {
+        // 铅坠或饵触底 → 浮漂立不起来
+        angle = Mathf.Lerp(angle, 20f, Time.deltaTime * 2f);
+
+        // 上浮被底部拖住
+        verticalSpeed *= 0.6f;
+    }
+
+    void TopLiftBehaviour()
+    {
+        // 顶漂 → 漂被往上托一点
+        verticalSpeed += 0.02f;
+    }
+
+    void DownPullBehaviour()
+    {
+        // 黑漂 → 往下猛拉
+        verticalSpeed -= 0.05f;
+    }
+
+    void NibbleBehaviour()
+    {
+        // 小顿口 → 轻微波动
+        verticalSpeed += Mathf.Sin(Time.time * 20f) * 0.0015f;
+    }
+
+    // ---------------------------------------------------------------------
+    // 状态自动切换
+    // ---------------------------------------------------------------------
+    void AutoTransition()
+    {
+        // 1. 浮漂露出 40% 以上 → 起漂或站漂
+        float headHeight = transform.position.y + floatLength;
+
+        if (state == BobberState.LyingDown && headHeight > waterLevel - 0.02f)
+            state = BobberState.RisingUp;
+
+        if (state == BobberState.RisingUp && angle < 12f)
+            state = BobberState.Standing;
+
+        // 2. 挂底判定
+        float tailHeight = transform.position.y - floatLength;
+        if (tailHeight < waterLevel - 0.03f)
+            state = BobberState.Bottom;
+
+        // 3. 顶漂
+        if (deltaY > 0.015f)
+            state = BobberState.TopLift;
+
+        // 4. 黑漂
+        if (deltaY < -0.02f)
+            state = BobberState.DownPull;
+
+        // 5. 小顿口
+        if (Mathf.Abs(deltaY) > 0.003f && Mathf.Abs(deltaY) < 0.015f)
+            state = BobberState.Nibble;
+    }
+
+    // ---------------------------------------------------------------------
+    // 垂直物理
+    // ---------------------------------------------------------------------
+    void ApplyPhysics()
+    {
+        float submerged = Mathf.Clamp01((waterLevel - transform.position.y) * 8f);
+        float upForce = buoyancyForce * submerged - mass * 9.8f;
+
+        verticalSpeed += upForce * Time.deltaTime;
+        verticalSpeed = Mathf.Clamp(verticalSpeed, -0.2f, 0.2f);
+
+        transform.position += new Vector3(0, verticalSpeed, 0);
+    }
+
+    // ---------------------------------------------------------------------
+    // 倾斜角控制
+    // ---------------------------------------------------------------------
+    void ApplyRotation()
+    {
+        Quaternion q = Quaternion.Euler(angle, 0, 0);
+        transform.rotation = Quaternion.Slerp(transform.rotation, q, Time.deltaTime * 8f);
+    }
+}