鱼竿弯曲

Assets/Scripts/Editor/Fix/CCDIKRodWeightEditor.cs

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+#if UNITY_EDITOR
+using UnityEditor;
+using UnityEngine;
+using RootMotion.FinalIK;
+
+public static class CCDIKRodWeightEditor
+{
+    // 默认鱼竿权重曲线：
+    // 根部硬，末端软
+    private static readonly AnimationCurve DefaultRodCurve = new AnimationCurve(
+        new Keyframe(0.00f, 1.00f),
+        new Keyframe(0.30f, 0.88f),
+        new Keyframe(0.60f, 0.58f),
+        new Keyframe(0.82f, 0.22f),
+        new Keyframe(1.00f, 0.05f)
+    );
+
+    /// <summary>
+    /// 对当前选中物体上的 CCDIK 应用默认鱼竿权重
+    /// </summary>
+    [MenuItem("Tools/FinalIK/CCDIK/Apply Rod Weights (Selected)")]
+    public static void ApplyRodWeightsToSelected()
+    {
+        var go = Selection.activeGameObject;
+        if (go == null)
+        {
+            Debug.LogWarning("没有选中任何 GameObject。");
+            return;
+        }
+
+        var ccdik = go.GetComponent<CCDIK>();
+        if (ccdik == null)
+        {
+            Debug.LogWarning($"选中的物体 [{go.name}] 上没有 CCDIK 组件。");
+            return;
+        }
+
+        ApplyWeights(ccdik, DefaultRodCurve, 0.05f, 1.0f, true);
+    }
+
+    /// <summary>
+    /// 稍微软一点的版本
+    /// </summary>
+    [MenuItem("Tools/FinalIK/CCDIK/Apply Rod Weights Soft (Selected)")]
+    public static void ApplyRodWeightsSoftToSelected()
+    {
+        var go = Selection.activeGameObject;
+        if (go == null)
+        {
+            Debug.LogWarning("没有选中任何 GameObject。");
+            return;
+        }
+
+        var ccdik = go.GetComponent<CCDIK>();
+        if (ccdik == null)
+        {
+            Debug.LogWarning($"选中的物体 [{go.name}] 上没有 CCDIK 组件。");
+            return;
+        }
+
+        var softCurve = new AnimationCurve(
+            new Keyframe(0.00f, 1.00f),
+            new Keyframe(0.25f, 0.92f),
+            new Keyframe(0.50f, 0.72f),
+            new Keyframe(0.75f, 0.35f),
+            new Keyframe(1.00f, 0.10f)
+        );
+
+        ApplyWeights(ccdik, softCurve, 0.10f, 1.0f, true);
+    }
+
+    /// <summary>
+    /// 更硬的版本
+    /// </summary>
+    [MenuItem("Tools/FinalIK/CCDIK/Apply Rod Weights Stiff (Selected)")]
+    public static void ApplyRodWeightsStiffToSelected()
+    {
+        var go = Selection.activeGameObject;
+        if (go == null)
+        {
+            Debug.LogWarning("没有选中任何 GameObject。");
+            return;
+        }
+
+        var ccdik = go.GetComponent<CCDIK>();
+        if (ccdik == null)
+        {
+            Debug.LogWarning($"选中的物体 [{go.name}] 上没有 CCDIK 组件。");
+            return;
+        }
+
+        var stiffCurve = new AnimationCurve(
+            new Keyframe(0.00f, 1.00f),
+            new Keyframe(0.35f, 0.94f),
+            new Keyframe(0.65f, 0.65f),
+            new Keyframe(0.88f, 0.18f),
+            new Keyframe(1.00f, 0.03f)
+        );
+
+        ApplyWeights(ccdik, stiffCurve, 0.03f, 1.0f, true);
+    }
+
+    /// <summary>
+    /// 核心逻辑：
+    /// 第0个bone = 杆尾（高权重）
+    /// 最后一个bone = 竿稍（低权重）
+    /// </summary>
+    public static void ApplyWeights(CCDIK ccdik, AnimationCurve curve, float minWeight, float maxWeight, bool logResult)
+    {
+        if (ccdik == null)
+        {
+            Debug.LogWarning("CCDIK 为空。");
+            return;
+        }
+
+        var solver = ccdik.solver;
+        if (solver == null)
+        {
+            Debug.LogWarning("CCDIK.solver 为空。");
+            return;
+        }
+
+        if (solver.bones == null || solver.bones.Length == 0)
+        {
+            Debug.LogWarning($"[{ccdik.name}] 的 solver.bones 为空，请先正确配置 CCDIK Chain。");
+            return;
+        }
+
+        Undo.RecordObject(ccdik, "Apply CCDIK Rod Weights");
+
+        int count = solver.bones.Length;
+
+        if (count == 1)
+        {
+            solver.bones[0].weight = maxWeight;
+            EditorUtility.SetDirty(ccdik);
+            Debug.Log($"[{ccdik.name}] 只有 1 根 bone，已设置 weight = {maxWeight:F3}");
+            return;
+        }
+
+        for (int i = 0; i < count; i++)
+        {
+            // 0 = 杆尾，1 = 竿稍
+            float t = 1f - (i / (float)(count - 1));
+
+            // 曲线前高后低
+            float curveValue = curve.Evaluate(t);
+
+            // 限制范围
+            float weight = Mathf.Lerp(minWeight, maxWeight, curveValue);
+            weight = Mathf.Clamp(weight, minWeight, maxWeight);
+
+            solver.bones[i].weight = weight;
+        }
+
+        EditorUtility.SetDirty(ccdik);
+
+        if (logResult)
+        {
+            Debug.Log(BuildWeightLog(ccdik));
+        }
+    }
+
+    private static string BuildWeightLog(CCDIK ccdik)
+    {
+        if (ccdik == null || ccdik.solver == null || ccdik.solver.bones == null)
+            return "CCDIK 或 bones 无效。";
+
+        var bones = ccdik.solver.bones;
+        System.Text.StringBuilder sb = new System.Text.StringBuilder();
+        sb.AppendLine($"[{ccdik.name}] CCDIK Rod Weights Applied");
+        sb.AppendLine($"Bone Count = {bones.Length}");
+        sb.AppendLine("Index 0 = 杆尾，Last = 竿稍");
+        sb.AppendLine("--------------------------------");
+
+        for (int i = 0; i < bones.Length; i++)
+        {
+            string boneName = bones[i].transform != null ? bones[i].transform.name : "NULL";
+            sb.AppendLine($"[{i}] {boneName}  weight = {bones[i].weight:F3}");
+        }
+
+        return sb.ToString();
+    }
+
+    [MenuItem("Tools/FinalIK/CCDIK/Apply Rod Weights (Selected)", true)]
+    [MenuItem("Tools/FinalIK/CCDIK/Apply Rod Weights Soft (Selected)", true)]
+    [MenuItem("Tools/FinalIK/CCDIK/Apply Rod Weights Stiff (Selected)", true)]
+    private static bool ValidateApplyRodWeights()
+    {
+        return Selection.activeGameObject != null &&
+               Selection.activeGameObject.GetComponent<CCDIK>() != null;
+    }
+}
+#endif

Assets/Scripts/Editor/Fix/CCDIKRodWeightEditor.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 4b74c53bf2b849e3a899b34a5dbc348b
+timeCreated: 1775056514