88 lines
3.2 KiB
C#
88 lines
3.2 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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private CableSystem cableSystem;
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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CableSystem引用
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cableSystem = transform.parent.GetComponent<CableSystem>();
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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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public void UpdateRotation()
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{
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// 如果PhysicCable激活，不进行旋转
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if (cableSystem == null || cableSystem.PlugRef == null ||
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cableSystem.PhysicCableRef.GetComponent<LineRenderer>().enabled) return;
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Vector2 center = transform.position;
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// 使用当前出线口位置
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Vector2 outlet = outletPos;
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// 力向量（线缆拉力方向）
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Vector2 force = (Vector2)cableSystem.PlugRef.transform.position - outlet;
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// 杆臂向量（力作用点相对于圆心的位置）
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Vector2 r = outlet - center;
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// 计算 2D 扭矩：r × F
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float torque = (r.x * force.y - r.y * force.x);
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// 应用扭矩 + 阻尼
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angularVelocity += torque * torqueStrength * Time.deltaTime;
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angularVelocity *= Mathf.Exp(-angularDamping * Time.deltaTime); // 简易阻尼
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// 应用旋转
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currentAngle += angularVelocity * Time.deltaTime;
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transform.rotation = Quaternion.Euler(0, 0, currentAngle);
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// 更新出线口位置
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UpdateOutletPosition();
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}
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}
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} |