88 lines
2.6 KiB
C#
88 lines
2.6 KiB
C#
using System.Collections.Generic;
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using RebootKit.Engine.Extensions;
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using UnityEngine;
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using UnityEngine.Events;
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namespace RealityReboot.jelycho {
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public class Rope : MonoBehaviour {
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[SerializeField] ConfigurableJoint m_JointPrefab;
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[SerializeField] float m_SegmentDistance = 0.1f;
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readonly List<RopeSegment> m_Segments = new(16);
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float m_RopeLength;
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public UnityEvent<Rigidbody> FirstSegmentChanged;
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public UnityEvent<Rigidbody> LastSegmentChanged;
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void Start() {
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Clear();
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for (int i = 0; i < 2; i++) {
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AddSegment();
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}
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}
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void OnDestroy() {
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Clear();
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}
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void OnDrawGizmos() {
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Gizmos.color = Color.yellow;
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Gizmos.DrawSphere(transform.position, 0.075f);
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}
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public void GetWorldPositions(List<Vector3> outList) {
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outList.Clear();
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foreach (RopeSegment segment in m_Segments) {
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outList.Add(segment.transform.position);
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}
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}
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void Clear() {
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m_Segments.Clear();
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transform.DestroyChildren();
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}
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void AddSegment() {
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ConfigurableJoint joint = Instantiate(m_JointPrefab);
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RopeSegment segment = new() {
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transform = joint.transform,
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joint = joint,
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rigidbody = joint.gameObject.GetOrAdd<Rigidbody>()
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};
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if (m_Segments.Count == 0) {
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segment.rigidbody.useGravity = false;
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segment.rigidbody.isKinematic = true;
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Destroy(segment.joint);
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segment.joint = null;
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segment.rigidbody.position = transform.position;
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} else {
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RopeSegment previousSegment = m_Segments[m_Segments.Count - 1];
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segment.joint.connectedBody = previousSegment.rigidbody;
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segment.rigidbody.position = previousSegment.transform.up * -m_SegmentDistance;
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}
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segment.rigidbody.linearVelocity = Vector3.zero;
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segment.rigidbody.angularVelocity = Vector3.zero;
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m_Segments.Add(segment);
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if (m_Segments.Count == 1) {
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FirstSegmentChanged.Invoke(segment.rigidbody);
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} else if (m_Segments.Count > 1) {
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LastSegmentChanged.Invoke(segment.rigidbody);
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}
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}
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struct RopeSegment {
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public Transform transform;
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public ConfigurableJoint joint;
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public Rigidbody rigidbody;
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}
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}
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} |