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渲染和逻辑分离

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This commit is contained in:
Bob.Song
2026-04-18 12:49:55 +08:00
parent 6797852481
commit 8f9d51cb60
8 changed files with 342 additions and 244 deletions
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24
Assets/AdvancedRope/ExampleScenes/RopeTestScene_0.unity
View File

@@ -355,7 +355,7 @@ GameObject:
- component: {fileID: 524034410}
- component: {fileID: 524034409}
- component: {fileID: 524034408}
m_Layer: 0
m_Layer: 6
m_Name: Plane
m_TagString: Untagged
m_Icon: {fileID: 0}
@@ -468,6 +468,7 @@ GameObject:
- component: {fileID: 678145338}
- component: {fileID: 678145337}
- component: {fileID: 678145336}
- component: {fileID: 678145340}
m_Layer: 0
m_Name: RopeGenerator
m_TagString: Untagged
@@ -491,7 +492,7 @@ MonoBehaviour:
enabled: 1
ropeStartPoint: {x: -3, y: 4, z: 0}
ropeEndPoint: {x: 3, y: 4, z: 0}
ropeResolution: 0.895
ropeResolution: 0.5
ropeRadius: 0.1
gravity: {x: 0, y: -9.81, z: 0}
airFriction: 0.1
@@ -505,7 +506,7 @@ MonoBehaviour:
enableCollisions: 1
collisionLayer:
serializedVersion: 2
m_Bits: 4294967295
m_Bits: 64
enableSelfCollision: 0
initialPinPoints:
- nodeIndex: 0
@@ -514,8 +515,7 @@ MonoBehaviour:
- nodeIndex: -1
targetTransform: {fileID: 415232843}
localPos: {x: 0, y: 0, z: 0}
meshRadialSegments: 8
meshTextureTiling: 1
ropeRendererComponent: {fileID: 0}
--- !u!23 &678145337
MeshRenderer:
m_ObjectHideFlags: 0
@@ -588,6 +588,20 @@ Transform:
m_Children: []
m_Father: {fileID: 0}
m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
--- !u!114 &678145340
MonoBehaviour:
m_ObjectHideFlags: 0
m_CorrespondingSourceObject: {fileID: 0}
m_PrefabInstance: {fileID: 0}
m_PrefabAsset: {fileID: 0}
m_GameObject: {fileID: 678145335}
m_Enabled: 1
m_EditorHideFlags: 0
m_Script: {fileID: 11500000, guid: daa54ae922807734c889e8404bfd7b2e, type: 3}
m_Name:
m_EditorClassIdentifier: Assembly-CSharp::AdvancedRope.RopeMeshRenderer
radialSegments: 8
textureTiling: 1
--- !u!1 &956472882
GameObject:
m_ObjectHideFlags: 0

10
Assets/AdvancedRope/Scripts/IRopeRenderer.cs Normal file
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@@ -0,0 +1,10 @@
namespace AdvancedRope
{
public interface IRopeRenderer
{
void Bind(VerletRopeGenerator ropeGenerator);
void Rebuild();
void Render();
void Clear();
}
}

2
Assets/AdvancedRope/Scripts/IRopeRenderer.cs.meta Normal file
View File

@@ -0,0 +1,2 @@
fileFormatVersion: 2
guid: 5fb18fbc92c2ecf49a7fcbb8fce7df36

164
Assets/AdvancedRope/Scripts/RopeMesh.cs → Assets/AdvancedRope/Scripts/RopeMeshRenderer.cs
View File

@@ -2,12 +2,13 @@
namespace AdvancedRope
{
public class RopeMesh
[RequireComponent(typeof(MeshFilter), typeof(MeshRenderer))]
public class RopeMeshRenderer : MonoBehaviour, IRopeRenderer
{
private readonly int _radialSegments;
private readonly float _textureTiling;
private VerletRopeGenerator _verletRopeGenerator;
[SerializeField] private int radialSegments = 8;
[SerializeField] private float textureTiling = 1f;
private VerletRopeGenerator _ropeGenerator;
private MeshFilter _meshFilter;
private Mesh _mesh;
private Vector3[] _vertices;
@@ -15,47 +16,76 @@ namespace AdvancedRope
private Vector2[] _uvs;
private float _radius;
public RopeMesh(MeshFilter meshFilter, VerletRopeGenerator verletRopeGenerator, int radialSegments = 8, float textureTiling = 1f)
private void Awake()
{
_verletRopeGenerator = verletRopeGenerator;
_meshFilter = meshFilter;
_radialSegments = radialSegments;
_textureTiling = textureTiling;
_meshFilter = GetComponent<MeshFilter>();
}
public void SetupRopeMesh()
public void Bind(VerletRopeGenerator ropeGenerator)
{
_mesh = new Mesh
_ropeGenerator = ropeGenerator;
}
public void Rebuild()
{
SetupRopeMesh();
}
public void Render()
{
UpdateMeshVertices();
}
public void Clear()
{
ClearMesh();
}
private void SetupRopeMesh()
{
if (_ropeGenerator == null) return;
if (!_meshFilter) _meshFilter = GetComponent<MeshFilter>();
var segmentCount = Mathf.Max(3, radialSegments);
if (_mesh == null)
{
name = "ProceduralRope"
};
_mesh.MarkDynamic();
_mesh = new Mesh
{
name = "ProceduralRope"
};
_mesh.MarkDynamic();
}
else
{
_mesh.Clear();
}
_meshFilter.sharedMesh = _mesh;
_radius = _verletRopeGenerator.ropeRadius;
var nodes = _verletRopeGenerator.Nodes;
var vertexCount = nodes.Count * (_radialSegments + 1) + 2;
var triCount = (nodes.Count - 1) * _radialSegments * 6;
var capTrisCount = (_radialSegments * 3) * 2;
_radius = _ropeGenerator.ropeRadius;
var nodes = _ropeGenerator.Nodes;
var vertexCount = nodes.Count * (segmentCount + 1) + 2;
var triCount = (nodes.Count - 1) * segmentCount * 6;
var capTrisCount = (segmentCount * 3) * 2;
_vertices = new Vector3[vertexCount];
_uvs = new Vector2[vertexCount];
_triangles = new int[triCount + capTrisCount];
var triIndex = 0;
for (var i = 0; i < nodes.Count - 1; i++)
{
for (var j = 0; j < _radialSegments; j++)
for (var j = 0; j < segmentCount; j++)
{
var current = i * (_radialSegments + 1) + j;
var next = current + _radialSegments + 1;
var current = i * (segmentCount + 1) + j;
var next = current + segmentCount + 1;
_triangles[triIndex++] = current;
_triangles[triIndex++] = current + 1;
_triangles[triIndex++] = next;
_triangles[triIndex++] = next;
_triangles[triIndex++] = current + 1;
_triangles[triIndex++] = next + 1;
@@ -64,21 +94,21 @@ namespace AdvancedRope
var startCenterIndex = vertexCount - 2;
var endCenterIndex = vertexCount - 1;
// Start Cap
for (var j = 0; j < _radialSegments; j++)
for (var j = 0; j < segmentCount; j++)
{
var current = j;
var current = j;
var next = j + 1;
_triangles[triIndex++] = startCenterIndex;
_triangles[triIndex++] = next;
_triangles[triIndex++] = next;
_triangles[triIndex++] = current;
}
// End Cap
var lastRingStart = (nodes.Count - 1) * (_radialSegments + 1);
for (var j = 0; j < _radialSegments; j++)
var lastRingStart = (nodes.Count - 1) * (segmentCount + 1);
for (var j = 0; j < segmentCount; j++)
{
var current = lastRingStart + j;
var next = lastRingStart + j + 1;
@@ -90,22 +120,36 @@ namespace AdvancedRope
_mesh.vertices = _vertices;
_mesh.triangles = _triangles;
_mesh.uv = _uvs;
_mesh.RecalculateBounds();
}
public void UpdateMesh()
private void ClearMesh()
{
UpdateMeshVertices();
if (_meshFilter)
_meshFilter.sharedMesh = null;
if (_mesh != null)
{
if (Application.isPlaying)
Destroy(_mesh);
else
DestroyImmediate(_mesh);
}
_mesh = null;
}
public void ClearMesh()
{
_meshFilter.sharedMesh = null;
}
private void UpdateMeshVertices()
{
var verletTransform = _verletRopeGenerator.transform;
var nodes = _verletRopeGenerator.Nodes;
if(nodes.Count < 2) return;
if (_ropeGenerator == null || _mesh == null) return;
var segmentCount = Mathf.Max(3, radialSegments);
var uvTiling = Mathf.Max(0.01f, textureTiling);
var verletTransform = _ropeGenerator.transform;
var nodes = _ropeGenerator.Nodes;
if (nodes.Count < 2) return;
var lastRotation = Quaternion.identity;
var lastForward = Vector3.zero;
@@ -117,9 +161,9 @@ namespace AdvancedRope
forward = (nodes[i + 1].position - nodes[i].position).normalized;
else
forward = (nodes[i].position - nodes[i - 1].position).normalized;
if (forward == Vector3.zero) forward = Vector3.up;
Quaternion rotation;
if (i == 0)
@@ -127,16 +171,16 @@ namespace AdvancedRope
else
{
var swing = Quaternion.FromToRotation(lastForward, forward);
rotation = swing * lastRotation;
}
lastRotation = rotation;
lastForward = forward;
for (var j = 0; j <= _radialSegments; j++)
for (var j = 0; j <= segmentCount; j++)
{
var u = (float)j / _radialSegments;
var u = (float)j / segmentCount;
var angle = u * Mathf.PI * 2;
var x = Mathf.Cos(angle) * _radius;
@@ -146,24 +190,24 @@ namespace AdvancedRope
var worldPos = nodes[i].position + (rotation * localPos);
var meshLocalPos = verletTransform.InverseTransformPoint(worldPos);
var vertIndex = i * (_radialSegments + 1) + j;
var vertIndex = i * (segmentCount + 1) + j;
_vertices[vertIndex] = meshLocalPos;
var v = (float)i / (nodes.Count - 1) * _textureTiling;
var v = (float)i / (nodes.Count - 1) * uvTiling;
_uvs[vertIndex] = new Vector2(u, v);
}
}
var startCenterIndex = _vertices.Length - 2;
var endCenterIndex = _vertices.Length - 1;
_vertices[startCenterIndex] = verletTransform.InverseTransformPoint(nodes[0].position);
_uvs[startCenterIndex] = new Vector2(0.5f, 0f);
_vertices[endCenterIndex] = verletTransform.InverseTransformPoint(nodes[^1].position);
_uvs[endCenterIndex] = new Vector2(0.5f, 1f * _textureTiling);
_uvs[endCenterIndex] = new Vector2(0.5f, uvTiling);
_mesh.vertices = _vertices;
_mesh.uv = _uvs;

0
Assets/AdvancedRope/Scripts/RopeMesh.cs.meta → Assets/AdvancedRope/Scripts/RopeMeshRenderer.cs.meta
View File

372
Assets/AdvancedRope/Scripts/VerletRopeGenerator.cs
View File

@@ -7,7 +7,6 @@ namespace AdvancedRope
/// <summary>
/// 用于生成并模拟基于 Verlet 积分绳索的基类。
/// </summary>
[RequireComponent(typeof(MeshFilter), typeof(MeshRenderer))]
public class VerletRopeGenerator : MonoBehaviour
{
#region --- 数据结构 ---
@@ -24,7 +23,7 @@ namespace AdvancedRope
public RopeNode connectedNode;
public Vector3 connectionOffset;
public Transform pinnedTransform;
public Vector3 pinLocalPos;
@@ -46,7 +45,7 @@ namespace AdvancedRope
pinnedTransform = t;
pinLocalPos = offset;
}
/// <summary>
/// 将该节点连接到另一条绳索节点，可选偏移量。
/// </summary>
@@ -59,7 +58,7 @@ namespace AdvancedRope
isPinned = false;
pinnedTransform = null;
}
/// <summary>
/// 取消该节点的固定状态。
/// </summary>
@@ -82,8 +81,7 @@ namespace AdvancedRope
[System.Serializable]
public struct PinConfiguration
{
[Tooltip("要固定的节点索引（0 = 起点，-1 = 末尾）")]
public int nodeIndex;
[Tooltip("要固定的节点索引（0 = 起点，-1 = 末尾）")] public int nodeIndex;
public Transform targetTransform;
public Vector3 localPos;
}
@@ -95,33 +93,29 @@ namespace AdvancedRope
//[Header("通用设置")]
public bool initializeOnStart = false;
public bool enabled = true;
[Tooltip("绳索起点")]
public Vector3 ropeStartPoint;
[Tooltip("绳索终点（可选，若为空则绳索自由下垂）")]
public Vector3 ropeEndPoint;
[Tooltip("绳索起点")] public Vector3 ropeStartPoint;
[Tooltip("绳索终点（可选，若为空则绳索自由下垂）")] public Vector3 ropeEndPoint;
//[Header("分辨率与尺寸")]
[Range(0.01f, 1f)]
[Tooltip("0.1 = 稀疏，1.0 = 按半径可达到的最大密度")]
[Range(0.01f, 1f)] [Tooltip("0.1 = 稀疏，1.0 = 按半径可达到的最大密度")]
public float ropeResolution = 0.5f;
public float ropeRadius = 0.1f;
//[Header("物理参数")]
public Vector3 gravity = new Vector3(0, -9.81f, 0);
[Range(0f, 1f)] public float airFriction = 0.1f;
[Range(0f, 1f)] public float stiffness = 1.0f;
[Tooltip("约束求解迭代次数。值越高越硬，但开销更大")]
public int constraintIterations = 8;
[Tooltip("绳索与刚体碰撞时施加给刚体的力")]
public float collisionPushPower = 5f;
[Tooltip("约束求解迭代次数。值越高越硬，但开销更大")] public int constraintIterations = 8;
[Tooltip("绳索与刚体碰撞时施加给刚体的力")] public float collisionPushPower = 5f;
[Range(0f, 1f)] public float contactFriction = 0.5f;
//[Header("耦合设置")]
public Rigidbody connectedBodyStart;
public Rigidbody connectedBodyEnd;
public float rigidbodyInteractionForce = 10f;
//[Header("碰撞设置")]
public bool enableCollisions = true;
public LayerMask collisionLayer;
@@ -129,65 +123,82 @@ namespace AdvancedRope
//[Header("初始设置")]
public List<PinConfiguration> initialPinPoints;
//[Header("网格设置")]
public int meshRadialSegments = 8;
public float meshTextureTiling = 1f;
#endregion
#region --- 公开属性 ---
#region --- 公开属性 ---
public List<RopeNode> Nodes { get; private set; } = new List<RopeNode>();
#endregion
#region --- 私有变量 ---
private float _segmentLength;
private float _preferredSegmentLength;
private Collider[] _collisionBuffer = new Collider[10];
private List<Collider> _ignoreColliders = new List<Collider>();
private RopeMesh _ropeMesh;
private IRopeRenderer _ropeRenderer;
#endregion
#region --- 初始化 ---
private void OnEnable()
{
if(enabled)
if (enabled)
VerletPhysics.RegisterRopeGenerator(this);
}
private void OnDisable()
{
VerletPhysics.UnregisterRopeGenerator(this);
}
private void Awake()
{
ResolveRenderer();
}
private void Start()
{
if(initializeOnStart && enabled)
if (initializeOnStart && enabled)
InitializeRope();
}
private void ResolveRenderer()
{
if (_ropeRenderer != null) return;
var behaviours = GetComponents<MonoBehaviour>();
foreach (var behaviour in behaviours)
{
if (behaviour is not IRopeRenderer ropeRenderer) continue;
_ropeRenderer = ropeRenderer;
break;
}
if (_ropeRenderer == null)
Debug.LogWarning("未找到 IRopeRenderer 实现，绳索将不会渲染。请在预制体上绑定渲染组件。", this);
}
/// <summary>
/// 根据参数从零创建绳索。
/// </summary>
public void InitializeRope()
{
_ropeMesh?.ClearMesh();
_ropeMesh = new RopeMesh(GetComponent<MeshFilter>(), this, meshRadialSegments, meshTextureTiling);
ResolveRenderer();
_ropeRenderer?.Clear();
_ropeRenderer?.Bind(this);
Nodes.Clear();
_ignoreColliders.Clear();
var startPos = ropeStartPoint;
var endPos = ropeEndPoint;
if(Vector3.Distance(startPos, endPos) < 0.01f)
if (Vector3.Distance(startPos, endPos) < 0.01f)
endPos = startPos + Vector3.forward * 5f;
var totalDistance = Vector3.Distance(startPos, endPos);
var diameter = ropeRadius * 2f;
@@ -195,39 +206,39 @@ namespace AdvancedRope
var minNodes = 2;
var nodeCount = Mathf.RoundToInt(Mathf.Lerp(minNodes, maxNodes, ropeResolution));
_segmentLength = totalDistance / (nodeCount - 1);
_preferredSegmentLength = _segmentLength;
var direction = (endPos - startPos).normalized;
for (var i = 0; i < nodeCount; i++)
{
var pos = startPos + direction * (_segmentLength * i);
Nodes.Add(new RopeNode(pos));
}
// 应用初始固定点配置
ApplyInitialPins();
if(connectedBodyStart)
if (connectedBodyStart)
_ignoreColliders.AddRange(connectedBodyStart.GetComponentsInChildren<Collider>());
if(connectedBodyEnd)
if (connectedBodyEnd)
_ignoreColliders.AddRange(connectedBodyEnd.GetComponentsInChildren<Collider>());
_ropeMesh.SetupRopeMesh();
_ropeRenderer?.Rebuild();
}
private void ApplyInitialPins()
{
if(initialPinPoints == null) return;
if (initialPinPoints == null) return;
foreach (var pin in initialPinPoints)
{
var index = pin.nodeIndex;
if (index < 0)
index = Nodes.Count + index;
if(index >= 0 && index < Nodes.Count && pin.targetTransform)
if (index >= 0 && index < Nodes.Count && pin.targetTransform)
PinNode(index, pin.targetTransform, pin.localPos);
}
}
@@ -238,15 +249,15 @@ namespace AdvancedRope
private void LateUpdate()
{
if(!enabled) return;
_ropeMesh.UpdateMesh();
if (!enabled) return;
_ropeRenderer?.Render();
}
private void FixedUpdate()
{
if(!enabled) return;
if(Nodes.Count < 2) return;
if (!enabled) return;
if (Nodes.Count < 2) return;
SimulateVerlet();
@@ -256,9 +267,9 @@ namespace AdvancedRope
ApplyInterRopeConnection();
// 如需强制同步连接节点，可启用下一行
// 每次迭代都检查碰撞
if(enableCollisions)
if (enableCollisions)
ResolveCollisions();
}
@@ -273,15 +284,15 @@ namespace AdvancedRope
for (var i = 0; i < Nodes.Count; i++)
{
var myNode = Nodes[i];
if(myNode.connectedNode == null) continue;
if (myNode.connectedNode == null) continue;
var otherNode = myNode.connectedNode;
var currentVector = myNode.position - otherNode.position;
var targetVector = myNode.connectionOffset;
var diff = currentVector - targetVector;
var moveFactorA = 0.5f;
var moveFactorB = 0.5f;
@@ -295,14 +306,14 @@ namespace AdvancedRope
moveFactorA = 1f;
moveFactorB = 0f;
}
if(moveFactorA > 0f)
if (moveFactorA > 0f)
myNode.position -= diff * moveFactorA;
if(moveFactorB > 0f)
if (moveFactorB > 0f)
otherNode.position += diff * moveFactorB;
}
}
/// <summary>
/// 在约束迭代过程中防止连接节点发生漂移。
/// </summary>
@@ -313,7 +324,7 @@ namespace AdvancedRope
node.position = node.connectedNode.position + node.connectionOffset;
}
/// <summary>
/// 基础 Verlet 积分：x(t+dt) = 2x(t) - x(t-dt) + a*dt*dt
/// </summary>
@@ -331,12 +342,13 @@ namespace AdvancedRope
node.position = node.pinnedTransform.TransformPoint(node.pinLocalPos);
node.prevPosition = node.position;
}
continue;
}
var velocity = (node.position - node.prevPosition) * (1f - airFriction);
var newPos = node.position + velocity + gravityStep;
node.prevPosition = node.position;
node.position = newPos;
}
@@ -348,17 +360,17 @@ namespace AdvancedRope
{
var nodeA = Nodes[i];
var nodeB = Nodes[i + 1];
var diff = nodeA.position - nodeB.position;
var dist = diff.magnitude;
if (dist < 0.0001f) continue;
var differance = (dist - _segmentLength) / dist;
var translate = diff * (0.5f * differance * stiffness);
if (!nodeA.isPinned)
nodeA.position -= translate;
if (!nodeB.isPinned)
nodeB.position += translate;
}
@@ -373,7 +385,7 @@ namespace AdvancedRope
/// </summary>
private void ApplyCouplingForces()
{
if(connectedBodyStart && Nodes.Count > 0)
if (connectedBodyStart && Nodes.Count > 0)
{
var firstNode = Nodes[0];
@@ -388,12 +400,12 @@ namespace AdvancedRope
}
}
}
if(connectedBodyEnd && Nodes.Count > 0)
if (connectedBodyEnd && Nodes.Count > 0)
{
var lastNode = Nodes[^1];
var prevNode = Nodes[^2];
var pullDir = (prevNode.position - lastNode.position).normalized;
var dist = Vector3.Distance(prevNode.position, lastNode.position);
@@ -416,7 +428,7 @@ namespace AdvancedRope
{
for (var i = 0; i < Nodes.Count; i++)
{
if(Nodes[i].isPinned) continue;
if (Nodes[i].isPinned) continue;
HandleTerrainCollision(Nodes[i]);
@@ -431,17 +443,18 @@ namespace AdvancedRope
{
var terrain = UnityEngine.Terrain.activeTerrain;
if (!terrain) return;
var terrainHeight = terrain.SampleHeight(node.position) + terrain.transform.position.y;
if (node.position.y < terrainHeight + ropeRadius)
{
node.position = new Vector3(node.position.x, terrainHeight + ropeRadius, node.position.z);
// 地面摩擦
var vel = node.position - node.prevPosition;
node.prevPosition = node.position - (vel * 0.5f);
}
}
private void HandleStandardCollisions(RopeNode node)
{
var count = Physics.OverlapSphereNonAlloc(node.position, ropeRadius, _collisionBuffer, collisionLayer);
@@ -449,7 +462,7 @@ namespace AdvancedRope
for (var i = 0; i < count; i++)
{
var col = _collisionBuffer[i];
if(col is TerrainCollider) continue;
if (col is TerrainCollider) continue;
if (_ignoreColliders.Contains(col)) continue;
if (col is MeshCollider { convex: false } meshCol)
@@ -457,40 +470,40 @@ namespace AdvancedRope
HandleNonConvexCollision(node, meshCol);
continue;
}
var closestPoint = col.ClosestPoint(node.position);
var distToSurface = Vector3.Distance(node.position, closestPoint);
if (distToSurface < ropeRadius)
{
var pushDir = (node.position - closestPoint).normalized;
if(pushDir == Vector3.zero)
if (pushDir == Vector3.zero)
pushDir = (node.position - node.prevPosition).normalized;
var penetrationDepth = ropeRadius - distToSurface;
var pushVector = pushDir * penetrationDepth;
if(!node.isPinned)
if (!node.isPinned)
node.position += pushVector;
// 对刚体施加反作用力
var targetRb = col.attachedRigidbody;
if (targetRb && !targetRb.isKinematic)
{
var scale = collisionPushPower / constraintIterations;
var reactionForce = -pushDir * (penetrationDepth * scale);
targetRb.AddForceAtPosition(reactionForce, node.position, ForceMode.Impulse);
// 摩擦效果
var nodeVel = (node.position - node.prevPosition) / Time.fixedDeltaTime;
var rbVel = targetRb.GetPointVelocity(node.position);
var relativeVel = rbVel - nodeVel;
var tangentVel = Vector3.ProjectOnPlane(relativeVel, pushDir);
var normalForceMag = reactionForce.magnitude;
var frictionMag = normalForceMag * contactFriction;
@@ -498,7 +511,7 @@ namespace AdvancedRope
{
var frictionDir = -tangentVel.normalized;
var frictionForce = frictionDir * frictionMag;
targetRb.AddForceAtPosition(frictionForce, node.position, ForceMode.Impulse);
if (!node.isPinned)
@@ -511,28 +524,30 @@ namespace AdvancedRope
}
}
}
private void HandleNonConvexCollision(RopeNode node, MeshCollider meshCol)
{
var travelDir = node.position - node.prevPosition;
var travelDist = travelDir.magnitude;
if (travelDist < 0.0001f) return;
if (Physics.SphereCast(node.prevPosition, ropeRadius, travelDir.normalized, out var hit,
travelDist + ropeRadius, collisionLayer))
{
if(hit.collider == meshCol)
if (hit.collider == meshCol)
node.position = hit.point + hit.normal * (ropeRadius * 1.1f);
}
}
private void HandleSelfCollision(int currentIndex)
{
var currentNode = Nodes[currentIndex];
for (var i = 0; i < Nodes.Count; i++)
{
if(Mathf.Abs(currentIndex - i) <= 1) continue;
if (Mathf.Abs(currentIndex - i) <= 1) continue;
var otherNode = Nodes[i];
var distSqr = (currentNode.position - otherNode.position).sqrMagnitude;
var minSpacing = ropeRadius * 2f;
@@ -542,10 +557,10 @@ namespace AdvancedRope
var dist = Mathf.Sqrt(distSqr);
var pushDir = (currentNode.position - otherNode.position).normalized;
var pushAmount = (minSpacing - dist) * 0.5f;
if(!currentNode.isPinned)
if (!currentNode.isPinned)
currentNode.position += pushDir * pushAmount;
if(!otherNode.isPinned)
if (!otherNode.isPinned)
otherNode.position -= pushDir * pushAmount;
}
}
@@ -557,10 +572,10 @@ namespace AdvancedRope
public void Enable()
{
if(enabled) return;
if(gameObject.activeInHierarchy)
if (enabled) return;
if (gameObject.activeInHierarchy)
VerletPhysics.RegisterRopeGenerator(this);
InitializeRope();
enabled = true;
}
@@ -568,7 +583,7 @@ namespace AdvancedRope
public void Disable()
{
VerletPhysics.UnregisterRopeGenerator(this);
_ropeMesh?.ClearMesh();
_ropeRenderer?.Clear();
enabled = false;
}
@@ -578,7 +593,7 @@ namespace AdvancedRope
public void IncreaseLength()
{
if (TryInsertSegmentAtStart())
_ropeMesh?.SetupRopeMesh();
_ropeRenderer?.Rebuild();
}
/// <summary>
@@ -587,7 +602,7 @@ namespace AdvancedRope
public void DecreaseLength()
{
if (TryRemoveFreeSegmentNode())
_ropeMesh?.SetupRopeMesh();
_ropeRenderer?.Rebuild();
}
/// <summary>
@@ -620,7 +635,8 @@ namespace AdvancedRope
targetLength = Mathf.Max(0.001f, targetLength);
var preferredSegmentLength = Mathf.Max(0.001f, _preferredSegmentLength > 0f ? _preferredSegmentLength : _segmentLength);
var preferredSegmentLength = Mathf.Max(0.001f,
_preferredSegmentLength > 0f ? _preferredSegmentLength : _segmentLength);
var desiredSegmentCount = Mathf.Max(1, Mathf.RoundToInt(targetLength / preferredSegmentLength));
var topologyChanged = false;
@@ -642,7 +658,7 @@ namespace AdvancedRope
_segmentLength = targetLength / Mathf.Max(1, Nodes.Count - 1);
if (topologyChanged)
_ropeMesh?.SetupRopeMesh();
_ropeRenderer?.Rebuild();
}
/// <summary>
@@ -675,7 +691,7 @@ namespace AdvancedRope
return false;
}
/// <summary>
/// 将指定索引节点固定到目标变换组件，可选本地偏移。
/// </summary>
@@ -684,32 +700,32 @@ namespace AdvancedRope
/// <param name="localOffset"></param>
public void PinNode(int index, Transform target, Vector3 localOffset = default)
{
if(index < 0)
if (index < 0)
index = Nodes.Count + index;
if (index >= 0 && index < Nodes.Count)
{
Nodes[index].PinTo(target, localOffset);
if (index == 0)
ropeStartPoint = target.position;
if(index == Nodes.Count -1)
if (index == Nodes.Count - 1)
ropeEndPoint = target.position;
}
}
/// <summary>
/// 解除指定索引节点的固定。
/// </summary>
/// <param name="index">0 表示起点，-1 表示末尾节点</param>
public void UnpinNode(int index)
{
if(index < 0)
if (index < 0)
index = Nodes.Count + index;
if (index >= 0 && index < Nodes.Count)
{
Nodes[index].Unpin();
if(index == 0)
if (index == 0)
ropeStartPoint = transform.position;
if(index == Nodes.Count -1)
if (index == Nodes.Count - 1)
ropeEndPoint = transform.position + Vector3.forward * 5f;
}
}
@@ -722,30 +738,31 @@ namespace AdvancedRope
/// <param name="time"></param>
public void ConnectStartRigidbody(Rigidbody connectedRb, Vector3 localPos, float time)
{
StopCoroutine(RigibBodyConnectionRoute(connectedRb,localPos, time));
if(connectedBodyStart)
StopCoroutine(RigibBodyConnectionRoute(connectedRb, localPos, time));
if (connectedBodyStart)
{
_ignoreColliders.RemoveAll(c =>
c && (c.gameObject == connectedBodyStart.gameObject) ||
c && (c.gameObject == connectedBodyStart.gameObject) ||
c.transform.IsChildOf(connectedBodyStart.transform));
}
UnpinNode(0);
connectedBodyStart = null;
if(Nodes.Count == 0) return;
if (Nodes.Count == 0) return;
Nodes[0].isPinned = true;
StartCoroutine(RigibBodyConnectionRoute(connectedRb, localPos, time));
}
private IEnumerator RigibBodyConnectionRoute(Rigidbody connectedRb, Vector3 localPos, float time)
{
var dist = Vector3.Distance(Nodes[0].position, connectedRb.position + connectedRb.transform.TransformVector(localPos));
var dist = Vector3.Distance(Nodes[0].position,
connectedRb.position + connectedRb.transform.TransformVector(localPos));
var deltaTime = Time.fixedDeltaTime;
var deltaDist = dist;
if(time > 0.01f)
if (time > 0.01f)
deltaDist = deltaTime * (dist / time);
var wait = new WaitForFixedUpdate();
while (dist > 0.01f)
@@ -757,6 +774,7 @@ namespace AdvancedRope
connectedRb.position + connectedRb.transform.TransformVector(localPos));
yield return wait;
}
connectedBodyStart = connectedRb;
_ignoreColliders.AddRange(connectedRb.GetComponentsInChildren<Collider>());
PinNode(0, connectedBodyStart.transform, localPos);
@@ -772,14 +790,15 @@ namespace AdvancedRope
if (connectedBodyStart)
{
_ignoreColliders.RemoveAll(c =>
c&& (c.gameObject == connectedBodyStart.gameObject) ||
c && (c.gameObject == connectedBodyStart.gameObject) ||
c.transform.IsChildOf(connectedBodyStart.transform));
}
connectedBodyStart = connectedRb;
_ignoreColliders.AddRange(connectedRb.GetComponentsInChildren<Collider>());
PinNode(0, connectedBodyStart.transform, localPos);
}
/// <summary>
/// 将绳索末端连接到指定刚体。
/// </summary>
@@ -790,103 +809,108 @@ namespace AdvancedRope
if (connectedBodyEnd)
{
_ignoreColliders.RemoveAll(c =>
c && (c.gameObject == connectedBodyEnd.gameObject) ||
c && (c.gameObject == connectedBodyEnd.gameObject) ||
c.transform.IsChildOf(connectedBodyEnd.transform));
}
connectedBodyEnd = connectedRb;
_ignoreColliders.AddRange(connectedRb.GetComponentsInChildren<Collider>());
PinNode(-1, connectedBodyEnd.transform, localPos);
}
/// <summary>
/// 断开绳索起点与刚体的连接。
/// </summary>
public void DisconnectStartRigidbody()
{
if (!connectedBodyStart) return;
_ignoreColliders.RemoveAll(c =>
c != null && (c.gameObject == connectedBodyStart.gameObject) ||
c != null && (c.gameObject == connectedBodyStart.gameObject) ||
c.transform.IsChildOf(connectedBodyStart.transform));
connectedBodyStart = null;
UnpinNode(0);
}
/// <summary>
/// 断开绳索末端与刚体的连接。
/// </summary>
public void DisconnectEndRigidbody()
{
if (!connectedBodyEnd) return;
_ignoreColliders.RemoveAll(c =>
c != null && (c.gameObject == connectedBodyEnd.gameObject) ||
c != null && (c.gameObject == connectedBodyEnd.gameObject) ||
c.transform.IsChildOf(connectedBodyEnd.transform));
connectedBodyEnd = null;
UnpinNode(-1);
}
/// <summary>
/// 将当前绳索末端连接到目标绳索的某个节点。
/// </summary>
/// <param name="targetRope"></param>
/// <param name="targetNodeIndex"></param>
/// <param name="connectionOffset"></param>
public void ConnectEndToOtherRope(VerletRopeGenerator targetRope, int targetNodeIndex, Vector3 connectionOffset = default)
public void ConnectEndToOtherRope(VerletRopeGenerator targetRope, int targetNodeIndex,
Vector3 connectionOffset = default)
{
ConnectToOtherRope(-1, targetRope, targetNodeIndex, connectionOffset);
}
/// <summary>
/// 将当前绳索起点连接到目标绳索的某个节点。
/// </summary>
/// <param name="targetRope"></param>
/// <param name="targetNodeIndex"></param>
/// <param name="connectionOffset"></param>
public void ConnectStartToOtherRope(VerletRopeGenerator targetRope, int targetNodeIndex, Vector3 connectionOffset = default)
public void ConnectStartToOtherRope(VerletRopeGenerator targetRope, int targetNodeIndex,
Vector3 connectionOffset = default)
{
ConnectToOtherRope(0, targetRope, targetNodeIndex, connectionOffset);
}
/// <summary>
/// 将当前绳索的某个节点连接到目标绳索的某个节点。
/// </summary>
/// <param name="myNodeIndex">0 表示起点，-1 表示末尾节点</param>
/// <param name="targetRope"></param>
/// <param name="targetNodeIndex">0 表示起点，-1 表示末尾节点</param>
public void ConnectToOtherRope(int myNodeIndex, VerletRopeGenerator targetRope, int targetNodeIndex, Vector3 connectionOffset = default)
public void ConnectToOtherRope(int myNodeIndex, VerletRopeGenerator targetRope, int targetNodeIndex,
Vector3 connectionOffset = default)
{
if(myNodeIndex < 0)
if (myNodeIndex < 0)
myNodeIndex = Nodes.Count + myNodeIndex;
if(targetNodeIndex < 0)
if (targetNodeIndex < 0)
targetNodeIndex = targetRope.Nodes.Count + targetNodeIndex;
if(myNodeIndex < 0 || myNodeIndex >= Nodes.Count) return;
if(!targetRope || targetNodeIndex < 0 || targetNodeIndex >= targetRope.Nodes.Count) return;
if (myNodeIndex < 0 || myNodeIndex >= Nodes.Count) return;
if (!targetRope || targetNodeIndex < 0 || targetNodeIndex >= targetRope.Nodes.Count) return;
var myNode = Nodes[myNodeIndex];
var targetNode = targetRope.Nodes[targetNodeIndex];
if(targetNodeIndex == 0)
if (targetNodeIndex == 0)
targetRope.DisconnectStartRigidbody();
if(targetNodeIndex == targetRope.Nodes.Count - 1)
if (targetNodeIndex == targetRope.Nodes.Count - 1)
targetRope.DisconnectEndRigidbody();
myNode.ConnectToNode(targetNode, connectionOffset);
targetNode.ConnectToNode(myNode, -connectionOffset);
}
/// <summary>
/// 断开该节点与其他绳索节点的连接。
/// </summary>
/// <param name="myNodeIndex">0 表示起点，-1 表示末尾节点</param>
public void DisconnectFromOtherRope(int myNodeIndex)
{
if(myNodeIndex < 0)
if (myNodeIndex < 0)
myNodeIndex = Nodes.Count + myNodeIndex;
if(myNodeIndex < 0 || myNodeIndex >= Nodes.Count) return;
if (myNodeIndex < 0 || myNodeIndex >= Nodes.Count) return;
var myNode = Nodes[myNodeIndex];
var targetNode = myNode.connectedNode;
myNode.ConnectToNode(null);
@@ -910,7 +934,7 @@ namespace AdvancedRope
{
var p1 = Nodes[i].position;
var p2 = Nodes[i + 1].position;
var distSqr = SqrDistanceRaySegment(ray, p1, p2, out var rayParam, out var segmentParam);
if (distSqr <= (ropeRadius * ropeRadius) && rayParam < maxDistance && rayParam > 0)
@@ -918,7 +942,7 @@ namespace AdvancedRope
if (rayParam < closestDistSqr)
{
closestDistSqr = rayParam;
hitInfo.DidHit = true;
hitInfo.Rope = this;
hitInfo.NodeIndex = segmentParam < 0.5f ? i : i + 1;
@@ -926,27 +950,28 @@ namespace AdvancedRope
hitInfo.Distance = rayParam;
hitInfo.SegmentRatio = segmentParam;
hitInfo.Point = ray.GetPoint(rayParam);
hasHit = true;
}
}
}
return hasHit;
}
private static float SqrDistanceRaySegment(Ray ray, Vector3 s1, Vector3 s2, out float rayParam, out float segmentParam)
private static float SqrDistanceRaySegment(Ray ray, Vector3 s1, Vector3 s2, out float rayParam,
out float segmentParam)
{
var u = ray.direction;
var v = s2 - s1;
var w = ray.origin - s1;
var a = Vector3.Dot(u, u);
var b = Vector3.Dot(u, v);
var c = Vector3.Dot(v, v);
var d = Vector3.Dot(u, w);
var e = Vector3.Dot(v, w);
var denom = a * c - b * b;
float sc, tc;
@@ -960,43 +985,44 @@ namespace AdvancedRope
sc = (b * e - c * d) / denom;
tc = (a * e - b * d) / denom;
}
rayParam = sc;
segmentParam = Mathf.Clamp01(tc);
var closestPointOnSegment = s1 + v * segmentParam;
var delta = closestPointOnSegment - ray.origin;
rayParam = Vector3.Dot(delta, ray.direction);
if(rayParam < 0f)
if (rayParam < 0f)
rayParam = 0f;
var closestPointOnRay = ray.GetPoint(rayParam);
return (closestPointOnSegment - closestPointOnRay).sqrMagnitude;
}
#endregion
#region --- 调试 / 场景可视化 ---
private void OnDrawGizmos()
{
if(Nodes == null || Nodes.Count == 0) return;
if (Nodes == null || Nodes.Count == 0) return;
Gizmos.color = Color.green;
for (var i = 0; i < Nodes.Count - 1; i++)
Gizmos.DrawLine(Nodes[i].position, Nodes[i + 1].position);
Gizmos.color = Color.red;
foreach (var node in Nodes)
if(node.isPinned)
if (node.isPinned)
Gizmos.DrawWireSphere(node.position, ropeRadius * 1.2f);
}
private void OnDrawGizmosSelected()
{
if(Application.isPlaying) return;
if (Application.isPlaying) return;
var startPos = ropeStartPoint;
var endPos = ropeEndPoint;
@@ -1025,7 +1051,7 @@ namespace AdvancedRope
foreach (var pin in initialPinPoints)
{
if (pin.targetTransform == null) continue;
var idx = pin.nodeIndex;
if (idx < 0) idx = nodeCount + idx;
@@ -1067,7 +1093,7 @@ namespace AdvancedRope
}
}
}
#endregion
}
@@ -1081,4 +1107,4 @@ namespace AdvancedRope
public float Distance;
public float SegmentRatio;
}
}
}

2
F2RopeLine2.sln.DotSettings.user Normal file
View File

@@ -0,0 +1,2 @@
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12
UserSettings/EditorUserSettings.asset
View File

@@ -24,20 +24,20 @@ EditorUserSettings:
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flags: 0
RecentlyUsedSceneGuid-4:
value: 00040c5204025e5d0f59547242710744454e4d7f28717363757c1f63e7b0633c
flags: 0
RecentlyUsedSceneGuid-5:
value: 0050525253025d0b5a0f542748710f4446151a727d2b74652e714862b4b6636d
flags: 0
RecentlyUsedSceneGuid-6:
RecentlyUsedSceneGuid-5:
value: 0206055103530a0908560e21497b0d4410161c2b2a712468757e4461b3e3306a
flags: 0
RecentlyUsedSceneGuid-7:
RecentlyUsedSceneGuid-6:
value: 5100040304005e5a5b0d5875482659441715412b757b74342b781b6ab7e1653b
flags: 0
RecentlyUsedSceneGuid-8:
RecentlyUsedSceneGuid-7:
value: 5005025453535f0f595d597b12225d44174f1a73757f22357f711c30b4e4666a
flags: 0
RecentlyUsedSceneGuid-8:
value: 00040c5204025e5d0f59547242710744454e4d7f28717363757c1f63e7b0633c
flags: 0
vcSharedLogLevel:
value: 0d5e400f0650
flags: 0