public SplineMesh.CurveSample ClosestTrackSample(SplineMesh.Spline track)
{
int segmentA = raceController.GetTrackSegment(CarInfo?.name);
int segmentB = -1;
if (segmentA < 0)
{
segmentA = 0;
segmentB = raceController.GetNumSegments();
}
else
{
segmentB = raceController.NextSegment(segmentA);
}
float begin = Math.Max(0, raceController.TrackDistanceAtSegment(segmentA));
float end = Math.Max(0, raceController.TrackDistanceAtSegment(segmentB));
var closest = track.GetSampleAtDistance(begin);
float closestDistance = float.MaxValue;
for (float i = begin; i < end; i += 0.05f)
{
var curveSample = track.GetSampleAtDistance(i);
var d = (gameObject.transform.position - 0.048f * Vector3.up - curveSample.location);
d.y *= 10;
var distance = d.magnitude;
if (distance < closestDistance)
{
closestDistance = distance;
closest = curveSample;
}
}
return(closest);
}
Vector3 GetPosition(float aLength)
{
if (line.useWorldSpace)
{
return(transform.TransformPoint(spline.GetSampleAtDistance(aLength).location));
}
else
{
return(spline.GetSampleAtDistance(aLength).location);
}
}
private void FillOnce()
{
sampleCache.Clear();
var bentVertices = new List <MeshVertex>(source.Vertices.Count);
// for each mesh vertex, we found its projection on the curve
foreach (var vert in source.Vertices)
{
float distance = vert.position.x - source.MinX;
CurveSample sample;
if (!sampleCache.TryGetValue(distance, out sample))
{
if (!useSpline)
{
if (distance > curve.Length)
{
distance = curve.Length;
}
sample = curve.GetSampleAtDistance(distance);
}
else
{
float distOnSpline = intervalStart + distance;
if (distOnSpline > spline.Length)
{
if (spline.IsLoop)
{
while (distOnSpline > spline.Length)
{
distOnSpline -= spline.Length;
}
}
else
{
distOnSpline = spline.Length;
}
}
sample = spline.GetSampleAtDistance(distOnSpline);
}
sampleCache[distance] = sample;
}
bentVertices.Add(sample.GetBent(vert));
}
MeshUtility.Update(result,
source.Mesh,
source.Triangles,
bentVertices.Select(b => b.position),
bentVertices.Select(b => b.normal));
}
public void Sow()
{
UOUtility.DestroyChildren(generated);
UnityEngine.Random.InitState(randomSeed);
if (spacing + spacingRange <= 0 ||
prefab == null)
{
return;
}
float distance = 0;
while (distance <= spline.Length)
{
CurveSample sample = spline.GetSampleAtDistance(distance);
GameObject go;
if (Application.isPlaying)
{
go = Instantiate(prefab, generated.transform);
}
else
{
go = (GameObject)UnityEditor.PrefabUtility.InstantiatePrefab((UnityEngine.Object)prefab);
go.transform.parent = generated.transform;
}
go.transform.localRotation = Quaternion.identity;
go.transform.localPosition = Vector3.zero;
go.transform.localScale = Vector3.one;
// move along spline, according to spacing + random
go.transform.localPosition = sample.location;
// apply scale + random
float rangedScale = scale + UnityEngine.Random.Range(0, scaleRange);
go.transform.localScale = new Vector3(rangedScale, rangedScale, rangedScale);
// rotate with random yaw
if (isRandomYaw)
{
go.transform.Rotate(0, 0, UnityEngine.Random.Range(-180, 180));
}
else
{
go.transform.rotation = sample.Rotation;
}
// move orthogonaly to the spline, according to offset + random
Vector3 binormal = sample.tangent;
binormal = Quaternion.LookRotation(Vector3.right, Vector3.up) * binormal;
var localOffset = offset + UnityEngine.Random.Range(0, offsetRange * Math.Sign(offset));
localOffset *= sample.scale.x;
binormal *= localOffset;
go.transform.position += binormal;
distance += spacing + UnityEngine.Random.Range(0, spacingRange);
}
}
public void Sow()
{
UOUtility.DestroyChildren(generated);
UnityEngine.Random.InitState(randomSeed);
if (spacing + spacingRange <= 0 ||
prefab == null)
{
return;
}
float distance = 0;
while (distance <= spline.Length)
{
CurveSample sample = spline.GetSampleAtDistance(distance);
if (heightSync)
{
var sampleLocationWS = spline.transform.TransformPoint(sample.location);
RaycastHit hitInfo;
if (Physics.Raycast(sampleLocationWS + Vector3.up * heightSyncTraceRange, -Vector3.up, out hitInfo, heightSyncTraceRange * 2, heightSyncLayerMask))
{
var newSampleLocation = spline.transform.InverseTransformPoint(hitInfo.point);
var newSampleUp = heightNormalSync ? spline.transform.InverseTransformDirection(hitInfo.normal) : sample.up;
sample = new CurveSample(newSampleLocation, sample.tangent, newSampleUp, sample.scale, sample.roll, sample.distanceInCurve, sample.timeInCurve, sample.curve);
}
}
GameObject go;
go = Instantiate(prefab, generated.transform);
go.transform.localRotation = Quaternion.identity;
go.transform.localPosition = Vector3.zero;
go.transform.localScale = Vector3.one;
go.isStatic = false == updateInPlayMode;
go.layer = gameObject.layer;
foreach (var child in go.transform.Cast <Transform>())
{
child.gameObject.layer = go.layer;
}
// move along spline, according to spacing + random
go.transform.localPosition = sample.location;
// apply scale + random
float rangedScale = scale + UnityEngine.Random.Range(0, scaleRange);
go.transform.localScale = new Vector3(rangedScale, rangedScale, rangedScale);
// rotate with random yaw
if (isRandomYaw)
{
go.transform.Rotate(0, 0, UnityEngine.Random.Range(-180, 180));
}
else
{
go.transform.rotation = sample.Rotation;
}
// move orthogonaly to the spline, according to offset + random
var binormal = (Quaternion.LookRotation(sample.tangent, sample.up) * Vector3.right).normalized;
var localWidthOffset = widthOffset + UnityEngine.Random.Range(0, widthOffsetRange * Math.Sign(widthOffset));
var localHeightOffset = heightOffset + UnityEngine.Random.Range(0, heightOffsetRange * Math.Sign(heightOffset));
localWidthOffset *= sample.scale.x;
binormal *= localWidthOffset;
go.transform.position += binormal + sample.up * localHeightOffset;
distance += spacing + UnityEngine.Random.Range(0, spacingRange);
}
}
public void CreateMeshes()
{
if (null == spline || null == meshInfos || 0 == meshInfos.Length)
{
return;
}
UpdateSourceMeshes();
UpdateDecisionParts();
string generatedName = "generated by " + GetType().Name;
var generatedTranform = transform.Find(generatedName);
generated = generatedTranform != null ? generatedTranform.gameObject : UOUtility.Create(generatedName, gameObject);
generated.isStatic = false == updateInPlayMode;
generated.layer = gameObject.layer;
var generatedChildren = generated.transform.Cast <Transform>().ToList();
foreach (var child in generatedChildren)
{
if (null == child)
{
continue;
}
var meshCollider = child.GetComponent <MeshCollider>();
if (meshCollider)
{
meshCollider.enabled = false;
}
}
var meshChunkDict = new Dictionary <Material, List <MeshChunk> >();
var sampleCache = new Dictionary <float, CurveSample>();
float offset = 0;
for (int i = 0; i < decisionParts.Count; ++i)
{
int index = decisionParts[i];
if (false == meshChunkDict.ContainsKey(meshInfos[index].material))
{
meshChunkDict.Add(meshInfos[index].material, new List <MeshChunk>());
}
var meshChunkList = meshChunkDict[meshInfos[index].material];
int vertexCount = meshInfos[index].mesh.vertices.Length;
bool isReachedMaxVertices = 0 < meshChunkList.Count && PerChunkMaxVertices < (meshChunkList.Last().bentVertices.Count + vertexCount);
bool isReachedMaxLength = 0 < meshChunkList.Count && PerChunkMaxLength < meshChunkList.Last().length;
if (0 == meshChunkList.Count || isReachedMaxVertices || isReachedMaxLength)
{
meshChunkList.Add(new MeshChunk()
{
bentVertices = new List <MeshVertex>(vertexCount),
triangles = new List <int>(vertexCount / 3),
uv = new List <Vector2> [8],
length = 0
});
}
var meshChunk = meshChunkList.Last();
ref SourceMesh sourceMesh = ref sourceMeshes[index];
meshChunk.triangles.AddRange(sourceMesh.Triangles.Select(idx => idx + meshChunk.bentVertices.Count));
List <Vector2> UV = new List <Vector2>();
for (int channel = 0; channel < 8; ++channel)
{
UV.Clear();
sourceMesh.Mesh.GetUVs(channel, UV);
if (0 < UV.Count)
{
if (null == meshChunk.uv[channel])
{
meshChunk.uv[channel] = new List <Vector2>();
}
int fillCount = Mathf.Max(0, (meshChunk.bentVertices.Count - UV.Count) - meshChunk.uv[channel].Count);
if (0 < fillCount)
{
meshChunk.uv[channel].AddRange(Enumerable.Repeat(Vector2.zero, fillCount));
}
meshChunk.uv[channel].AddRange(UV);
}
}
foreach (var vertex in sourceMesh.Vertices)
{
var vert = new MeshVertex(vertex.position, vertex.normal, vertex.uv);
vert.position.x *= partsScale;
float distance = vert.position.x - sourceMesh.MinX * partsScale + offset;
distance = Mathf.Clamp(distance, 0, spline.Length);
CurveSample sample;
if (false == sampleCache.TryGetValue(distance, out sample))
{
sample = spline.GetSampleAtDistance(distance);
if (heightSync)
{
var sampleLocationWS = spline.transform.TransformPoint(sample.location);
RaycastHit hitInfo;
if (Physics.Raycast(sampleLocationWS + Vector3.up * heightSyncTraceRange, -Vector3.up, out hitInfo, heightSyncTraceRange * 2, heightSyncLayerMask))
{
var newSampleLocation = spline.transform.InverseTransformPoint(hitInfo.point);
var newSampleUp = heightNormalSync ? spline.transform.InverseTransformDirection(hitInfo.normal) : sample.up;
sample = new CurveSample(newSampleLocation, sample.tangent, newSampleUp, sample.scale, sample.roll, sample.distanceInCurve, sample.timeInCurve, sample.curve);
}
}
sampleCache.Add(distance, sample);
}
MeshVertex bentVertex = sample.GetBent(vert);
meshChunk.bentVertices.Add(bentVertex);
}
offset += sourceMeshes[index].Length * partsScale;
meshChunk.length += sourceMeshes[index].Length * partsScale;
}
private void CreateMeshes()
{
if (null == spline)
{
return;
}
string generatedName = "generated by " + GetType().Name;
var generatedTranform = transform.Find(generatedName);
generated = generatedTranform != null ? generatedTranform.gameObject : UOUtility.Create(generatedName, gameObject);
generated.isStatic = false == updateInPlayMode;
generated.layer = gameObject.layer;
var generatedChildren = generated.transform.Cast <Transform>().ToList();
foreach (var child in generatedChildren)
{
if (null == child)
{
continue;
}
var meshCollider = child.GetComponent <MeshCollider>();
if (meshCollider)
{
meshCollider.enabled = false;
}
}
List <MeshVertex> sourceVertices = new List <MeshVertex>(2 + Mathf.Max(0, slice - 1));
float x_start = offset - width / 2;
float x_end = offset + width / 2;
sourceVertices.Add(new MeshVertex(new Vector3(0, 0, x_start), Vector3.up, new Vector2(+textureOffsetScale.x, 0)));
for (int step = 1; step < slice; ++step)
{
float t = (float)step / (float)slice;
float x = Mathf.Lerp(x_start, x_end, t);
sourceVertices.Add(new MeshVertex(new Vector3(0, 0, x), Vector3.up, new Vector2(t / textureOffsetScale.z + textureOffsetScale.x, 0)));
}
sourceVertices.Add(new MeshVertex(new Vector3(0, 0, x_end), Vector3.up, new Vector2(1 / textureOffsetScale.z + textureOffsetScale.x, 0)));
if (Mathf.Approximately(sampleSpacing, 0) || sampleSpacing <= 0)
{
Debug.LogError("Not enough sampleSpcaing. (must be greater than zero)");
return;
}
int lineCount = 0;
List <MeshVertex> bentVertices = new List <MeshVertex>();
for (float d = 0.0f; d <= spline.Length; d += sampleSpacing)
{
var sample = spline.GetSampleAtDistance(d);
if (heightSync)
{
var sampleLocationWS = spline.transform.TransformPoint(sample.location);
RaycastHit hitInfo;
if (Physics.Raycast(sampleLocationWS + Vector3.up * heightSyncTraceRange, -Vector3.up, out hitInfo, heightSyncTraceRange * 2, heightSyncLayerMask))
{
var newSampleLocation = spline.transform.InverseTransformPoint(hitInfo.point);
sample = new CurveSample(newSampleLocation, sample.tangent, sample.up, sample.scale, sample.roll, sample.distanceInCurve, sample.timeInCurve, sample.curve);
}
}
for (int i = 0; i < sourceVertices.Count; ++i)
{
var bentVertex = sample.GetBent(sourceVertices[i]);
bentVertex.normal = sample.up;
if (heightSync)
{
var bentWS = spline.transform.TransformPoint(bentVertex.position);
RaycastHit hitInfo;
if (Physics.Raycast(bentWS + Vector3.up * heightSyncTraceRange, -Vector3.up, out hitInfo, heightSyncTraceRange * 2, heightSyncLayerMask))
{
bentVertex.position = spline.transform.InverseTransformPoint(hitInfo.point);
if (heightNormalSync)
{
bentVertex.normal = spline.transform.InverseTransformDirection(hitInfo.normal);
}
}
}
bentVertex.uv.y = (d / width) / textureOffsetScale.w + textureOffsetScale.y;
bentVertices.Add(bentVertex);
}
++lineCount;
}
if (1 >= lineCount)
{
Debug.LogError("Not enough line length");
return;
}
List <Transform> newGeneratedTransform = new List <Transform>();
int baseIndex = 0;
int lineVerticesCount = 2 + Mathf.Max(0, slice - 1);
List <int> triangles = new List <int>((lineVerticesCount - 1) * (lineCount - 1) * 2);
for (int i = 0; i < lineCount - 1; ++i)
{
int nextBaseIndex = baseIndex + lineVerticesCount;
for (int v = 0; v < lineVerticesCount - 1; ++v)
{
int[] vertices = new int[] {
baseIndex + v, baseIndex + v + 1,
nextBaseIndex + v, nextBaseIndex + v + 1
};
triangles.Add(vertices[0]);
triangles.Add(vertices[1]);
triangles.Add(vertices[2]);
triangles.Add(vertices[2]);
triangles.Add(vertices[1]);
triangles.Add(vertices[3]);
}
bool isOverVertices = nextBaseIndex + lineVerticesCount > PerSegmentMaxVertices;
bool isEndLine = (i == lineCount - 2);
bool needGenerateSegment = isOverVertices || isEndLine;
if (needGenerateSegment)
{
string segmentName = $"{name}-{material.name}-{newGeneratedTransform.Count + 1}";
Transform segmentTransform = generated.transform.Find(segmentName);
if (null == segmentTransform)
{
var go = UOUtility.Create(segmentName,
generated,
typeof(MeshFilter),
typeof(MeshRenderer),
typeof(MeshCollider));
segmentTransform = go.transform;
}
segmentTransform.gameObject.isStatic = generated.isStatic;
segmentTransform.gameObject.layer = generated.layer;
newGeneratedTransform.Add(segmentTransform);
generatedChildren.Remove(segmentTransform);
var meshFilter = segmentTransform.GetComponent <MeshFilter>();
var meshRenderer = segmentTransform.GetComponent <MeshRenderer>();
var meshCollider = segmentTransform.GetComponent <MeshCollider>();
Mesh mesh = meshFilter.sharedMesh;
if (null == mesh || mesh.name != segmentName)
{
mesh = new Mesh();
}
else if (mesh.vertexCount != bentVertices.Count)
{
mesh.Clear();
}
mesh.name = segmentName;
mesh.hideFlags = HideFlags.HideInHierarchy;
mesh.indexFormat = UnityEngine.Rendering.IndexFormat.UInt16;
var segmentBentVertices = bentVertices.GetRange(0, nextBaseIndex + lineVerticesCount);
mesh.SetVertices(segmentBentVertices.Select(b => b.position).ToList());
mesh.SetNormals(segmentBentVertices.Select(b => b.normal).ToList());
mesh.SetUVs(0, segmentBentVertices.Select(b => b.uv).ToList());
mesh.SetTriangles(triangles, 0, false);
mesh.RecalculateBounds();
mesh.RecalculateTangents();
meshFilter.sharedMesh = mesh;
meshRenderer.material = material;
meshCollider.sharedMesh = mesh;
meshCollider.enabled = generateCollider;
triangles.Clear();
bentVertices.RemoveRange(0, nextBaseIndex);
nextBaseIndex = 0;
}
baseIndex = nextBaseIndex;
}
foreach (var deprecatedTransform in generatedChildren)
{
if (deprecatedTransform != null)
{
UOUtility.Destroy(deprecatedTransform.gameObject);
}
}
}