Fishing2/Assets/Scripts/Fishing/Item/FishingLine/FLineTest.cs

using System.Collections.Generic;
using UnityEngine;

namespace NBF
{
    /// <summary>
    /// 硬线系统测试脚本，直接读取 FLine 已配置的节点。
    /// </summary>
    public class FLineTest : MonoBehaviour
    {
        [Header("测试控制")] [SerializeField] private KeyCode fixMiddleKey = KeyCode.M;

        [Header("动态间距控制")] [SerializeField] private KeyCode pullFirstKey = KeyCode.UpArrow;
        [SerializeField] private KeyCode relaxFirstKey = KeyCode.DownArrow;
        [SerializeField] private KeyCode fixedKey = KeyCode.F;
        [SerializeField] private KeyCode debugKey = KeyCode.D;
        [SerializeField, Min(0.01f)] private float extendAmount = 0.5f;
        [SerializeField, Min(0.01f)] private float holdAdjustSpeed = 1f;
        [SerializeField, Min(0.01f)] private float transitionSpeed = 2f;
        [SerializeField] private bool smoothTransition = true;

        [SerializeField] private FLine line;
        private float[] initialLengths;

        private void OnValidate()
        {
            extendAmount = Mathf.Max(0.01f, extendAmount);
            holdAdjustSpeed = Mathf.Max(0.01f, holdAdjustSpeed);
            transitionSpeed = Mathf.Max(0.01f, transitionSpeed);
        }

        private void Start()
        {
            RefreshInitialLengths(true);
            line.SetLenght(0.2f);
            line.SetLenght(0.2f, FLineLogicNodeType.End);
        }


        private void Update()
        {
            if (!EnsureCable())
                return;

            RefreshInitialLengths();
            HandleInput();

            // if (line.CurrentBreakStretchPercent > 10f)
            // {
            //     if (line.LineMode == LineMode.Constraint)
            //         Debug.LogError(
            //             $"当前极限情况，CurrentBreakStretchPercent={line.CurrentBreakStretchPercent} CurrentStretchLength={line.CurrentStretchLength} TotalLength={line.TotalLength} LimitStateTime={line.LimitStateTime}");
            // }
        }

        private bool EnsureCable()
        {
            if (line)
                return true;

            line = GetComponent<FLine>();
            return line != null;
        }

        private List<FLineLogicNode> GetNodes()
        {
            return line != null ? line.GetLineNodes() : null;
        }

        private void RefreshInitialLengths(bool force = false)
        {
            List<FLineLogicNode> nodes = GetNodes();
            int segmentCount = nodes != null ? Mathf.Max(0, nodes.Count - 1) : 0;

            if (!force && initialLengths != null && initialLengths.Length == segmentCount)
                return;

            initialLengths = new float[nodes.Count];

            for (var i = 0; i < nodes.Count; i++)
            {
                var node = nodes[i];
                initialLengths[i] = Mathf.Max(0.01f, node.Lenght);
            }
        }

        private float GetCurrentMaxLength(int segmentIndex)
        {
            var nodes = line.GetLineNodes();
            var node = nodes[segmentIndex];
            // float length = line.GetSegmentMaxLength(segmentIndex);
            return Mathf.Max(0.01f, node.Lenght);
        }

        private float GetTargetMaxLength(int segmentIndex)
        {
            var nodes = line.GetLineNodes();
            var node = nodes[segmentIndex];
            float length = node.Lenght;
            // if (length <= 0f)
            //     length = line.GetSegmentMaxLength(segmentIndex);

            return Mathf.Max(0.01f, length);
        }

        private int GetSegmentCount()
        {
            return initialLengths != null ? initialLengths.Length : 0;
        }

        private void HandleInput()
        {
            HandleOriginalControls();
            HandleDynamicDistanceControls();
        }

        private void HandleOriginalControls()
        {
            List<FLineLogicNode> nodes = GetNodes();
            if (nodes == null)
                return;

            if (Input.GetKeyDown(fixMiddleKey) && nodes.Count >= 3)
            {
                int middleIndex = nodes.Count / 2;
                FLineLogicNode middleNode = nodes[middleIndex];
                Rigidbody middleRb = middleNode ? middleNode.Rigidbody : null;

                if (middleNode && middleRb)
                {
                    bool newState = !middleRb.isKinematic;
                    Debug.Log($"中间节点({middleIndex}) {(newState ? "固定" : "释放")} - 观察其他节点变化");
                }
            }
        }

        private void HandleDynamicDistanceControls()
        {
            if (line == null || initialLengths == null || initialLengths.Length == 0)
                return;

            if (Input.GetKeyDown(pullFirstKey))
                PullFirstSegment(extendAmount * 0.5f);

            if (Input.GetKeyDown(relaxFirstKey))
                RelaxFirstSegment(extendAmount * 0.5f);

            if (Input.GetKeyDown(fixedKey))
            {
                if (line.LineMode == LineMode.Joint) line.ChangeMode(LineMode.Constraint);
                else line.ChangeMode(LineMode.Joint);
            }

            if (Input.GetKeyDown(debugKey))
            {
                line.Print();
            }
        }

        private void ApplySegmentTargetLength(FLineLogicNodeType type, float targetLength)
        {
            line.SetLenght(targetLength, type);
        }

        private void PullFirstSegment(float amount)
        {
            if (GetSegmentCount() <= 0)
                return;

            float targetLength = Mathf.Max(0.1f, GetTargetMaxLength(0) - amount);
            ApplySegmentTargetLength(0, targetLength);
            Debug.Log($"拉紧第一段到 {targetLength:F2}");
        }

        private void RelaxFirstSegment(float amount)
        {
            if (GetSegmentCount() <= 0)
                return;

            float targetLength = GetTargetMaxLength(0) + amount;
            ApplySegmentTargetLength(0, targetLength);
            Debug.Log($"放松第一段到 {targetLength:F2}");
        }

        private void OnGUI()
        {
            if (!EnsureCable())
                return;

            RefreshInitialLengths();

            List<FLineLogicNode> nodes = GetNodes();
            int nodeCount = nodes != null ? nodes.Count : 0;

            GUILayout.BeginArea(new Rect(10f, 10f, 360f, 260f));
            GUILayout.Label("=== 硬线系统测试控制 ===");
            GUILayout.Label("原始控制:");
            GUILayout.Label($"  {fixMiddleKey} - 固定/释放中间节点");
            GUILayout.Space(10f);
            GUILayout.Label("动态间距控制:");
            GUILayout.Label($"  {pullFirstKey} - 拉紧第一段");
            GUILayout.Label($"  {relaxFirstKey} - 放松第一段");
            GUILayout.Label("  Shift+滚轮 - 调整最近段");
            GUILayout.Space(10f);
            GUILayout.Label("设置:");
            GUILayout.Label($"  节点数: {nodeCount}");
            GUILayout.Label("  初始长度来源: FLine 节点配置");
            GUILayout.Label($"  过渡模式: {(smoothTransition ? "平滑" : "即时")}");
            if (smoothTransition)
                GUILayout.Label($"  过渡速度: {transitionSpeed:F1}");

            GUILayout.EndArea();

            GUILayout.BeginArea(new Rect(10f, 280f, 360f, 220f));
            GUILayout.Label("=== 各段实际长度 ===");

            // for (int i = 0; i < Mathf.Min(GetSegmentCount(), 10); i++)
            // {
            //     Rigidbody bodyA = nodes[i] ? nodes[i].Rigidbody : null;
            //     Rigidbody bodyB = nodes[i + 1] ? nodes[i + 1].Rigidbody : null;
            //     if (!bodyA || !bodyB)
            //         continue;
            //
            //     float actualDistance = Vector3.Distance(bodyA.position, bodyB.position);
            //     float currentLimit = GetCurrentMaxLength(i);
            //     float targetLimit = GetTargetMaxLength(i);
            //
            //     string segmentInfo = $"段{i}: {actualDistance:F2} (限制: {currentLimit:F2}";
            //     if (line.IsSegmentTransitioning(i))
            //         segmentInfo += $" -> {targetLimit:F2}";
            //
            //     segmentInfo += ")";
            //
            //     if (actualDistance > targetLimit * 1.1f)
            //     {
            //         GUI.color = Color.red;
            //     }
            //     else if (line.IsSegmentTransitioning(i))
            //     {
            //         GUI.color = Color.yellow;
            //     }
            //     else
            //     {
            //         GUI.color = Color.green;
            //     }
            //
            //     GUILayout.Label(segmentInfo);
            // }

            GUI.color = Color.white;

            bool anyTransitioning = false;
            for (int i = 0; i < GetSegmentCount(); i++)
            {
                if (line.IsSegmentTransitioning(i))
                {
                    anyTransitioning = true;
                    break;
                }
            }

            if (anyTransitioning)
                GUILayout.Label("状态: 过渡中...");

            GUILayout.EndArea();
        }
    }
}