130 lines
4.9 KiB
C#
130 lines
4.9 KiB
C#
using UnityEngine;
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namespace AibisDream.FixSystem
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{
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public class CableReel : MonoBehaviour
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{
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[Header("转盘设置")]
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[SerializeField] private float torqueStrength = 200f; // 扭矩强度
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[SerializeField] private float angularDamping = 5f; // 角速度阻尼
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[SerializeField] private float maxHalfAngle = 60f; // 单侧最大转角（总范围约 2× 此值 ≈ 120°）
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[SerializeField] private float returnSpeed = 4f; // 闲置回正速度
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private CablePanel cablePanel;
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private float angularVelocity; // 角速度
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private float currentAngle; // 当前角度
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public Vector3 outletPos { get; private set; } // 出线口位置
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private SpriteRenderer spriteRenderer;
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private float reelRadius; // 转盘半径
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private void Start()
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{
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// 获取CablePanel引用
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cablePanel = transform.GetComponentInParent<CablePanel>();
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// 兼容尚未重新保存的旧场景/预制体：新增序列化字段缺失时仍使用设计默认值。
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if (maxHalfAngle <= 0f) maxHalfAngle = 60f;
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if (returnSpeed <= 0f) returnSpeed = 4f;
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currentAngle = transform.eulerAngles.z;
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// 获取SpriteRenderer并计算半径
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spriteRenderer = GetComponent<SpriteRenderer>();
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if (spriteRenderer != null)
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{
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// 使用sprite的bounds来计算半径
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reelRadius = spriteRenderer.bounds.extents.y; // 使用y方向的半高作为半径
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}
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else
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{
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Debug.LogWarning("CableReel没有SpriteRenderer组件！");
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reelRadius = 0.5f; // 默认值
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}
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// 初始化出线口位置
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UpdateOutletPosition();
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}
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private void UpdateOutletPosition()
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{
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// 更新出线口位置（圆形本地坐标 (0, -radius) 转成世界坐标）
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outletPos = transform.TransformPoint(new Vector3(0, -reelRadius, 0));
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}
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public void ResetRotation()
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{
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// 重置角度和角速度
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currentAngle = 0;
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angularVelocity = 0;
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transform.rotation = Quaternion.identity;
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UpdateOutletPosition();
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}
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/// <summary>遗留兼容（旧 CableSystem 场景仍在调用）。</summary>
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public void UpdateRotation()
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{
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if (cablePanel == null || cablePanel.PlugRef == null) return;
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UpdateRotation(true);
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}
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/// <summary>
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/// 供旧 CableSystem 使用：以插头位置驱动线盘，并在收线时缓动回正。
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/// </summary>
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public void UpdateRotation(Transform plugTransform, bool active)
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{
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UpdateRotation(plugTransform, active, 1f);
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}
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/// <summary>拖拽/插接中朝拉力方向施加扭矩；闲置时缓动回正。</summary>
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public void UpdateRotation(bool active, float tautness = 1f)
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{
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if (cablePanel == null || cablePanel.PlugRef == null) return;
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UpdateRotation(cablePanel.PlugRef.transform, active, tautness);
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}
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private void UpdateRotation(Transform plugTransform, bool active, float tautness)
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{
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if (plugTransform == null) return;
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if (!active)
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{
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angularVelocity = 0f;
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currentAngle = Mathf.LerpAngle(currentAngle, 0f, returnSpeed * Time.deltaTime);
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ApplyRotation();
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return;
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}
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// 松弛时不驱动转盘，并缓动回正，避免出线口对着插头“预判”朝向
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if (tautness <= 0f)
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{
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angularVelocity = 0f;
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currentAngle = Mathf.LerpAngle(currentAngle, 0f, returnSpeed * Time.deltaTime);
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ApplyRotation();
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return;
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}
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Vector2 center = transform.position;
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Vector2 outlet = outletPos;
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Vector2 force = (Vector2)plugTransform.position - outlet;
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Vector2 r = outlet - center;
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float torque = (r.x * force.y - r.y * force.x) * tautness;
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angularVelocity += torque * torqueStrength * Time.deltaTime;
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angularVelocity *= Mathf.Exp(-angularDamping * Time.deltaTime);
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currentAngle += angularVelocity * Time.deltaTime;
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currentAngle = Mathf.Clamp(currentAngle, -maxHalfAngle, maxHalfAngle);
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if (currentAngle <= -maxHalfAngle && angularVelocity < 0f) angularVelocity = 0f;
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if (currentAngle >= maxHalfAngle && angularVelocity > 0f) angularVelocity = 0f;
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ApplyRotation();
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}
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private void ApplyRotation()
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{
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transform.rotation = Quaternion.Euler(0, 0, currentAngle);
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UpdateOutletPosition();
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}
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}
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}
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