public override Racetrack ApplyRacetrack(Racetrack racetrack)
{
angle = 0f;
radius = 3f;
//Generate(amountOfCPs);
Vector3[] checkpoints = new Vector3[amountOfCPs];
for (int i = 0; i < amountOfCPs; i++)
{
//GameObject instCp = (GameObject)Instantiate(prefabControlpoint, instTrack.transform);
angle += Random.Range(minAngle, maxAngle);
radius += Random.Range(minRadius, maxRadius);
Vector2 point = new Vector2(Mathf.Sin((angle * Mathf.PI) / 180f) * radius, Mathf.Cos((angle * Mathf.PI) / 180f) * radius);
checkpoints[i] = new Vector3(point.x, 0f, point.y);
//instCp.transform.position = new Vector3(point.x, 0f, point.y);
//instCPs.Add(instCp);
}
ClosedSpline <Vector3> clSpline = new ClosedSpline <Vector3>(checkpoints);
//if (instTrack != null)
//{
racetrack.track = clSpline;
//}
return(racetrack);
}
public float getCurvature(ClosedSpline <Vector2> spline)
{
float curvature = 0f;
int resolution = 20;
for (int i = 0; i < spline.ControlPointsAmount; i++)
{
float localMax = 0f;
float s = ((float)i) / spline.ControlPointsAmount;
float s2 = ((float)((i + 1))) / spline.ControlPointsAmount;
for (int j = 0; j < resolution; j++)
{
float locS = s + (s2 - s) * (((float)j) / resolution);
float locS2 = s + (s2 - s) * (((float)(j + 1)) / resolution);
Vector2 t1 = spline.TangentAt(s)[1] - spline.TangentAt(s)[0];
Vector2 t2 = spline.TangentAt(s2)[1] - spline.TangentAt(s2)[0];
float curv = Vector2.Angle(t1, t2);
if (curv > localMax)
{
localMax = curv;
}
}
curvature += localMax;
}
return(curvature);
}
public override Racetrack ApplyRacetrack(Racetrack racetrack)
{
float[] cps = new float[racetrack.track.controlPoints.Length];
for (int i = 0; i < cps.Length; i++)
{
cps[i] = Random.Range(widthMin, widthMax);
}
ClosedSpline <float> widthSpline = new ClosedSpline <float>(cps);
racetrack.width = widthSpline;
return(racetrack);
}
public override Racetrack ApplyRacetrack(Racetrack racetrack)
{
float[] cps = new float[checkpointsAmount];
for (int i = 0; i < cps.Length; i++)
{
float heightThere = terrain.SampleHeight(racetrack.track.SplineAt(((float)i) / ((float)cps.Length)) * 20f);
//Debug.Log("Height (" + (int)(racetrack.track.controlPoints[i].x * 20f + transform.position.x) + "," + (int)(racetrack.track.controlPoints[i].z * 20f + transform.position.z) + "): " + heightThere);
cps[i] = heightThere;
}
ClosedSpline <float> heightSpline = new ClosedSpline <float>(cps);
racetrack.height = heightSpline;
return(racetrack);
}
public CurvatureIdeallineAnalyzer(ClosedSpline <Vector3> idealLine)
{
int n = idealLine.ControlPointsAmount;
curvatureValues = new float[n];
for (int i = 0; i < n; i++)
{
curvatureValues[i] = float.MaxValue;
}
for (int i = 0; i < n; i++)
{
float s = ((float)i) / n;
float s2 = ((float)(i + 1)) / n;
Vector3 tangent1 = idealLine.TangentAt(s)[1] - idealLine.TangentAt(s)[0];
Vector3 tangent2 = idealLine.TangentAt(s2)[1] - idealLine.TangentAt(s2)[0];
Vector2 pos1 = new Vector2(idealLine.SplineAt(s).x, idealLine.SplineAt(s).z);
Vector2 pos2 = new Vector2(idealLine.SplineAt(s2).x, idealLine.SplineAt(s2).z);
Vector2 dir1 = new Vector2(tangent1.z, -tangent1.x);
Vector2 dir2 = new Vector2(tangent2.z, -tangent2.x);
Ray2D ray1 = new Ray2D(pos1, dir1);
Ray2D ray2 = new Ray2D(pos2, dir2);
Ray2D straightRay = new Ray2D(pos1, tangent1);
bool parallel;
Vector2 intersect = Utils.Intersect2D(ray1, ray2, out parallel);
if (parallel)
{
curvatureValues[i] = 0f;
}
else
{
float radius = (Vector2.Distance(intersect, pos1) + Vector2.Distance(intersect, pos2)) * 0.5f;
curvatureValues[i] = (1f / radius) * (Utils.PointRightTo(straightRay, intersect) ? 1f : -1f);
}
}
}
public override Racetrack ApplyRacetrack(Racetrack racetrack)
{
float[] cps = new float[checkpointsAmount];
for (int i = 0; i < cps.Length; i++)
{
//Debug.Log("Height (" + (int)(racetrack.track.controlPoints[i].x * 20f + transform.position.x) + "," + (int)(racetrack.track.controlPoints[i].z * 20f + transform.position.z) + "): " + heightThere);
Vector3 middlePosFirst = racetrack.track.SplineAt(((float)i) / ((float)cps.Length));
Vector3[] tangentFirst = racetrack.track.TangentAt(((float)i) / ((float)cps.Length));
Vector3 forwardFirst = tangentFirst[1] - tangentFirst[0];
forwardFirst.Normalize();
Vector3 sidewardsFirst = Quaternion.Euler(0f, 90f, 0f) * forwardFirst;
sidewardsFirst.Normalize();
Vector3 leftFirst = (middlePosFirst - sidewardsFirst * racetrack.width.SplineAt(0f) * 0.5f);
Vector3 rightFirst = (middlePosFirst + sidewardsFirst * racetrack.width.SplineAt(0f) * 0.5f);
leftFirst *= 20f;
rightFirst *= 20f;
float heightLeft = terrain.SampleHeight(leftFirst);
float heightRight = terrain.SampleHeight(rightFirst);
Vector3 leftFirstH = leftFirst;
Vector3 rightFirstH = rightFirst;
leftFirstH.y = heightLeft;
rightFirstH.y = heightRight;
cps[i] = Vector3.Angle(leftFirst - rightFirst, leftFirstH - rightFirstH) * Mathf.Sign(heightRight - heightLeft);
}
ClosedSpline <float> heightSpline = new ClosedSpline <float>(cps);
racetrack.bend = heightSpline;
return(racetrack);
}
// Use this for initialization
void Start()
{
Vector3[] cpPosses = new Vector3[controlPoints.Length];
for (int i = 0; i < controlPoints.Length; i++)
{
cpPosses[i] = controlPoints[i].transform.position;
}
clSpline = new ClosedSpline <Vector3>(cpPosses);
for (int i = 0; i < controlPoints.Length; i++)
{
if (Application.isPlaying)
{
controlPoints[i].GetComponent <MeshRenderer>().enabled = false;
}
else
{
controlPoints[i].GetComponent <MeshRenderer>().enabled = true;
}
}
}
public TerrainModifier(Terrain terrain, List <GeneratedElement> elements)
{
this.terrain = terrain;
float[] cpsLeft = new float[elements.Count];
float[] cpsRight = new float[elements.Count];
for (int i = 0; i < elements.Count; i++)
{
Vector3 toRight = (Quaternion.Euler(0f, (elements[i].Direction * 180f) / Mathf.PI, 0f)) * (new Vector3(elements[i].WidthEnd, 0f, 0f));
Vector3 samplePosLeft = elements[i].Position - toRight;
Vector3 samplePosRight = elements[i].Position + toRight;
cpsLeft[i] = terrain.SampleHeight(samplePosLeft);
cpsRight[i] = terrain.SampleHeight(samplePosRight);
}
heightsLeft = new ClosedSpline <float>(cpsLeft);
heightsRight = new ClosedSpline <float>(cpsRight);
int cpsAmount = 2000;
float scale = 10f;
float[,] cps = new float[cpsAmount + 1, cpsAmount + 1];
for (int x = cpsAmount / -2; x <= cpsAmount / 2; x++)
{
for (int y = cpsAmount / -2; y <= cpsAmount / 2; y++)
{
cps[x + cpsAmount / 2, y + cpsAmount / 2] = terrain.SampleHeight(new Vector3(x * scale, 0f, y * scale));
}
}
tempGeneratedCPs = cps;
tensorProductPlane = new TensorProductPlane(new Vector3((cpsAmount / -2) * scale, 0f, (cpsAmount / -2) * scale), scale, cps);
}
public SpeedAnalyzer(ClosedSpline <Vector3> idealLine, ClosedSpline <float> bankSpline, CurvatureAnalyzer curvature, int sampleRate)
{
this.idealLine = idealLine;
vs = new float[sampleRate];
force = new Vector3[sampleRate];
for (int i = 0; i < sampleRate; i++)
{
vs[i] = 0f;
force[i] = Vector3.zero;
}
for (int twice = 0; twice < 2; twice++)
{
for (int i = 0; i < sampleRate; i++)
{
int iPrev = i - 1;
if (iPrev < 0)
{
iPrev = sampleRate - 1;
}
float sPrev = ((float)iPrev) / sampleRate;
float s = ((float)i) / sampleRate;
float angleHere = Vector3.Angle(idealLine.TangentAt(sPrev)[1] - idealLine.TangentAt(sPrev)[0], new Vector3((idealLine.TangentAt(sPrev)[1] - idealLine.TangentAt(sPrev)[0]).x, 0f, (idealLine.TangentAt(sPrev)[1] - idealLine.TangentAt(sPrev)[0]).z));
if ((idealLine.TangentAt(sPrev)[1] - idealLine.TangentAt(sPrev)[0]).y < 0f)
{
angleHere = -angleHere;
}
float estimatedT = -1f + Mathf.Sqrt(1f + (Vector3.Distance(idealLine.SplineAt(s), idealLine.SplineAt(sPrev)) * 2f) / carAcceleration(vs[iPrev], angleHere));
float v = vs[iPrev] + estimatedT * carAcceleration(vs[iPrev], angleHere);
float aZ = carAcceleration(vs[iPrev], angleHere);
float radius = Mathf.Abs(1f / curvature.Curvature[(int)(s * curvature.Curvature.Length)]);
float bankToRightAngle = bankSpline.SplineAt(s);
float vMax = lateralAcceleration(bankToRightAngle, radius, curvature.Curvature[(int)(s * curvature.Curvature.Length)] >= 0f);
//float vMax = Mathf.Sqrt(lateralAcceleration(v) * radius);
if (vMax < v)
{
v = vMax;
float vBack = v;
for (int j = 1; j < sampleRate; j++)
{
int index = i - j;
if (index < 0)
{
index = sampleRate + index;
}
int indexPrev = index + 1;
if (indexPrev >= sampleRate)
{
indexPrev = 0;
}
float sTempPrev = ((float)indexPrev) / sampleRate;
float sTemp = ((float)index) / sampleRate;
float estimatedTTemp = -1f + Mathf.Sqrt(1f + (Vector3.Distance(idealLine.SplineAt(s), idealLine.SplineAt(sPrev)) * 2f) / carAcceleration(vs[iPrev], angleHere));
float vMaxBack = vBack + estimatedTTemp * braking(vBack, angleHere);
if (vMaxBack < vs[index])
{
vs[index] = vMaxBack;
force[index] = new Vector3((vMaxBack * vMaxBack) / radius, force[index].y, -braking(vBack, angleHere));
vBack = vMaxBack;
}
else
{
break;
}
}
}
vs[i] = v;
force[i] = new Vector3((v * v * Mathf.Sign(curvature.Curvature[(int)(s * curvature.Curvature.Length)])) / radius, 0f, aZ);
}
}
}
public CurvatureAnalyzer(ClosedSpline <Vector3> spline) : this(spline, 300)
{
}
public CurvatureAnalyzer(ClosedSpline <Vector3> spline, int sampleRate)
{
this.spline = spline;
this.sampleRate = sampleRate;
curvatureValues = new float[sampleRate];
curvativeBins = new float[17];
for (int i = -8; i <= 8; i++)
{
curvativeBins[i + 8] = (((float)i) * maxBinValue) / 8.0f;
}
if (curvativeBins != null && curvativeBins.Length > 0)
{
curvativeProfile = new int[curvativeBins.Length];
for (int i = 0; i < curvativeProfile.Length; i++)
{
curvativeProfile[i] = 0;
}
}
for (int i = 0; i < sampleRate; i++)
{
float curPos = ((float)i) / ((float)sampleRate);
float nextPos = ((float)(i + 1)) / ((float)sampleRate);
Vector3 pos1 = spline.SplineAt(curPos);
Vector3 pos2 = spline.SplineAt(nextPos);
Vector3 tangent1 = spline.TangentAt(curPos)[1] - spline.TangentAt(curPos)[0];
Vector3 tangent2 = spline.TangentAt(nextPos)[1] - spline.TangentAt(nextPos)[0];
Vector3 inside1 = Vector3.Cross(tangent1, Vector3.up);
Vector3 inside2 = Vector3.Cross(tangent2, Vector3.up);
Vector2 vec2Pos1 = new Vector2(pos1.x, pos1.z);
Vector2 vec2Pos2 = new Vector2(pos2.x, pos2.z);
Vector2 vec2Inside1 = new Vector2(inside1.x, inside1.z);
Vector2 vec2Inside2 = new Vector2(inside2.x, inside2.z);
Line line1 = new Line(vec2Pos1, vec2Pos1 + vec2Inside1);
Line line2 = new Line(vec2Pos2, vec2Pos2 + vec2Inside2);
Vector2 intersect = Vector2.zero;
bool intersects = line1.Intersects(line2, out intersect);
float curvative = 0f;
if (intersect != Vector2.zero)
{
float radius1 = Vector2.Distance(intersect, vec2Pos1);
float radius2 = Vector2.Distance(intersect, vec2Pos2);
float avgRadius = (radius1 + radius2) * 0.5f;
curvative = 1f / avgRadius;
Vector3 toRight = (inside1 - pos1).normalized;
Vector3 intersectDir = ((new Vector3(intersect.x, pos1.y, intersect.y)) - pos1).normalized;
if (Vector3.Angle(toRight, intersectDir) >= 90)
{
curvative *= -1f;
}
curvatureValues[i] = curvative;
}
if (curvativeBins != null && curvativeBins.Length > 0)
{
bool found = false;
for (int j = 0; j < curvativeBins.Length; j++)
{
if (curvative < curvativeBins[j])
{
curvativeProfile[j]++;
found = true;
break;
}
}
if (!found)
{
curvativeProfile[curvativeProfile.Length - 1]++;
}
}
}
}
public DiscreteTrack(GeneratedTrack track, TerrainModifier terrainModifier)
{
List <Vector3> lefts = new List <Vector3>();
List <Vector3> rights = new List <Vector3>();
List <Vector3> leftsCurv = new List <Vector3>();
List <Vector3> rightsCurv = new List <Vector3>();
List <int> indcs = new List <int>();
int indcsCounter = 0;
List <float> idealLineMeshList = new List <float>();
int idLineMeshCounter = 0;
for (int i = 0; i < track.Elements.Length; i++)
{
if (track.Elements[i].GetType() == typeof(GeneratedStraight))
{
Vector3 middle = track.Elements[i].Position;
Vector3 toRight = (new Vector3(Mathf.Cos(track.Elements[i].Direction), 0f, -Mathf.Sin(track.Elements[i].Direction))).normalized;
Vector3 toFront = (new Vector3(Mathf.Sin(track.Elements[i].Direction), 0f, Mathf.Cos(track.Elements[i].Direction))).normalized;
lefts.Add(middle - toRight * track.Elements[i].WidthStart);
rights.Add(middle + toRight * track.Elements[i].WidthStart);
indcsCounter = -1;
GeneratedStraight straight = (GeneratedStraight)track.Elements[i];
int segsAmount = (int)(straight.Length / straightSegmentingFactorIdealline);
int segmentsAmountMesh = (int)(straight.Length / straightSegmentingFactorMesh);
for (int j = 0; j < segmentsAmountMesh; j++)
{
//idealLineMesh[idLineMeshCounter] = 1f;
idealLineMeshList.Add(1f);
idLineMeshCounter++;
}
for (int j = 0; j < segsAmount; j++)
{
leftsCurv.Add(middle - toRight * track.Elements[i].WidthStart + toFront * straight.Length * (((float)j) / ((float)segsAmount)));
rightsCurv.Add(middle + toRight * track.Elements[i].WidthStart + toFront * straight.Length * (((float)j) / segsAmount));
indcsCounter++;
}
indcs.Add(indcsCounter);
}
else if (track.Elements[i].GetType() == typeof(GeneratedTurn))
{
GeneratedTurn turn = (GeneratedTurn)track.Elements[i];
bool rightTurn = turn.Degree >= 0f;
Vector3 toRight = (Quaternion.Euler(0f, (turn.Direction * 180f) / Mathf.PI, 0f)) * (new Vector3(1f, 0f, 0f));
Vector3 toFront = (Quaternion.Euler(0f, (turn.Direction * 180f) / Mathf.PI, 0f)) * (new Vector3(0f, 0f, 1f));
Vector3 middlePoint = toRight * turn.Radius * (rightTurn ? 1f : -1f);
int segmentsAmount = ((int)(Mathf.Abs(turn.Degree) / 30f)) + 1;
for (int j = 0; j < segmentsAmount; j++)
{
Vector3 toRightTurned = (Quaternion.Euler(0f, (turn.Degree / ((float)segmentsAmount)) * j, 0f)) * toRight;
Vector3 segmentPos = middlePoint + (toRightTurned * (rightTurn ? -1f : 1f) * turn.Radius);
float currentWidth = (turn.WidthEnd - turn.WidthStart) * (float)((float)j / (float)segmentsAmount) + turn.WidthStart;
lefts.Add(segmentPos + toRightTurned * currentWidth * -1f + turn.Position);
rights.Add(segmentPos + toRightTurned * currentWidth + turn.Position);
leftsCurv.Add(segmentPos + toRightTurned * currentWidth * -1f + turn.Position);
rightsCurv.Add(segmentPos + toRightTurned * currentWidth + turn.Position);
indcs.Add(0);
}
}
else if (track.Elements[i].GetType() == typeof(GeneratedBezSpline))
{
GeneratedBezSpline bezierSpline = (GeneratedBezSpline)track.Elements[i];
for (int j = 0; j < bezierSpline.RenderVertsLeft.Length - 1; j++)
{
if (j == 0)
{
//idealLineMesh[idLineMeshCounter] = 2f;
idealLineMeshList.Add(2f);
}
else
{
//idealLineMesh[idLineMeshCounter] = 0f;
idealLineMeshList.Add(0f);
}
idLineMeshCounter++;
if (j % 3 == 0)
{
lefts.Add(bezierSpline.RenderVertsLeft[j]);
rights.Add(bezierSpline.RenderVertsRight[j]);
leftsCurv.Add(bezierSpline.RenderVertsLeft[j]);
rightsCurv.Add(bezierSpline.RenderVertsRight[j]);
indcs.Add(0);
}
}
}
}
idealLineMesh = idealLineMeshList.ToArray();
leftPoints = lefts.ToArray();
rightPoints = rights.ToArray();
leftPointsCurv = leftsCurv.ToArray();
rightPointsCurv = rightsCurv.ToArray();
indcsFromPathIntoCurvature = indcs.ToArray();
shortestPathTrajectory = minimizePathTrajectory();
if (false)
{
for (int i = 0; i < leftPoints.Length; i++)
{
int i2 = (i + 1) % leftPoints.Length;
Debug.DrawLine(leftPoints[i], leftPoints[i2], Color.white, 10000f);
Debug.DrawLine(rightPoints[i], rightPoints[i2], Color.white, 10000f);
Debug.DrawLine(leftPoints[i], rightPoints[i], Color.white, 10000f);
Debug.DrawLine(shortestPathTrajectory[i] * (leftPoints[i] - rightPoints[i]) + rightPoints[i], shortestPathTrajectory[i2] * (leftPoints[i2] - rightPoints[i2]) + rightPoints[i2], Color.green, 10000f);
}
}
minimumCurvatureTrajectory = minimizeCurvatureTrajectory();
if (false)
{
for (int i = 0; i < leftPointsCurv.Length; i++)
{
int i2 = (i + 1) % leftPointsCurv.Length;
Debug.DrawLine(leftPointsCurv[i], leftPointsCurv[i2], Color.white, 10000f);
Debug.DrawLine(rightPointsCurv[i], rightPointsCurv[i2], Color.white, 10000f);
Debug.DrawLine(leftPointsCurv[i], rightPointsCurv[i], Color.white, 10000f);
Debug.DrawLine(minimumCurvatureTrajectory[i] * (leftPointsCurv[i] - rightPointsCurv[i]) + rightPointsCurv[i], minimumCurvatureTrajectory[i2] * (leftPointsCurv[i2] - rightPointsCurv[i2]) + rightPointsCurv[i2], Color.green, 10000f);
}
}
float epsilon = 0.1f;
idealLine = applyEpsilon(shortestPathTrajectory, minimumCurvatureTrajectory, epsilon, indcsFromPathIntoCurvature);
/*for (int i = 0; i < idealLine.Length; i++)
* {
* Debug.Log("IL [" + i + "]: " + idealLine[i]);
* }*/
Debug.Log("cnter: " + idLineMeshCounter);
transferToMeshIdealLine(track, idealLine, idealLineMesh);
List <float> cpsBankAngles = new List <float>();
List <Vector3> cpsMinDistance = new List <Vector3>();
float minDistance = 15f;
Vector3[] cps = new Vector3[idealLine.Length];
float[] cpsBank = new float[idealLine.Length];
cpsMinDistance.Add(idealLine[0] * (leftPointsCurv[0] - rightPointsCurv[0]) + rightPointsCurv[0]);
for (int i = 1; i < idealLine.Length; i++)
{
Vector3 point = idealLine[i] * (leftPointsCurv[i] - rightPointsCurv[i]) + rightPointsCurv[i];
//cps[i] = point;
if (Vector3.Distance(cpsMinDistance[cpsMinDistance.Count - 1], point) > minDistance)
{
cpsBankAngles.Add(Vector3.Angle(new Vector3(rightPointsCurv[i].x - leftPointsCurv[i].x, terrainModifier.GetTensorHeight(rightPointsCurv[i].x, rightPointsCurv[i].z) - terrainModifier.GetTensorHeight(leftPointsCurv[i].x, leftPointsCurv[i].z), rightPointsCurv[i].z - leftPointsCurv[i].z), new Vector3((rightPointsCurv[i] - leftPointsCurv[i]).x, 0f, (rightPointsCurv[i] - leftPointsCurv[i]).z)) * Mathf.Sign((rightPointsCurv[i] - leftPointsCurv[i]).y));
cpsMinDistance.Add(point);
}
}
cps = cpsMinDistance.ToArray();
cpsBank = cpsBankAngles.ToArray();
for (int i = 0; i < cps.Length; i++)
{
cps[i] = new Vector3(cps[i].x, terrainModifier.GetTensorHeight(cps[i].x, cps[i].z), cps[i].z);
}
idealLineSpline = new ClosedSpline <Vector3>(cps);
ClosedSpline <float> bankSpline = new ClosedSpline <float>(cpsBank);
curvatureAnalyzer = new CurvatureAnalyzer(idealLineSpline, 300);
speedAnalyzer = new SpeedAnalyzer(idealLineSpline, bankSpline, curvatureAnalyzer, 300);
curvatureAnalyzerTrack = new CurvatureAnalyzer(track, 300);
curvatureIdealLineAnalyzer = new CurvatureIdeallineAnalyzer(idealLineSpline);
float startFinishLength = 500f;
float partStartFinish = startFinishLength / track.TrackLength;
int elementsStartFinishAmount = (int)(idealLineSpline.ControlPointsAmount * partStartFinish);
elementsStartFinishAmount = (int)(partStartFinish * 300f);
int startFinishIndex = minCurvatureForAmount(curvatureAnalyzerTrack.Curvature, elementsStartFinishAmount);
float partpart = curvatureAnalyzerTrack.trackPartIndices[startFinishIndex];
//Vector3 beginStartFinishPoint = idealLineSpline.controlPoints[startFinishIndex];
Debug.Log("Start Finish point: " + partpart);
int elementStartFinishBeginIndex = (int)partpart;
Vector3 elementStartPos = track.Elements[elementStartFinishBeginIndex].Position;
startFinishLineIndex = partpart;
//Debug.Log("Start Finish point: " + elementStartPos);
}
public override Racetrack ApplyRacetrack(Racetrack racetrack)
{
if (instTrack != null)
{
Destroy(instTrack);
instTrack = null;
}
instTrack = Instantiate(renderedTrackPrefab, transform);
instTrack.transform.localPosition = Vector3.zero;
Vector3[] leftCps = new Vector3[racetrack.track.controlPoints.Length];
Vector3[] rightCps = new Vector3[racetrack.track.controlPoints.Length];
for (int i = 0; i < leftCps.Length; i++)
{
Vector3 cpPos = racetrack.track.controlPoints[i];
Vector3[] tangentCp = racetrack.track.TangentAt(((float)i) / ((float)leftCps.Length));
Vector3 forwardCp = tangentCp[1] - tangentCp[0];
forwardCp.Normalize();
Vector3 sidewardsCp = Quaternion.Euler(0f, 90f, 0f) * forwardCp;
sidewardsCp.Normalize();
rightCps[i] = cpPos + sidewardsCp * racetrack.width.controlPoints[i] * 0.5f;
leftCps[i] = cpPos - sidewardsCp * racetrack.width.controlPoints[i] * 0.5f;
}
ClosedSpline <Vector3> leftTrack = new ClosedSpline <Vector3>(leftCps);
ClosedSpline <Vector3> rightTrack = new ClosedSpline <Vector3>(rightCps);
MeshFilter meshFilter = instTrack.GetComponent <MeshFilter>();
List <Vector3> vertices = new List <Vector3>();
List <int> triangles = new List <int>();
List <Vector2> uvs = new List <Vector2>();
List <int> trianglesWhite = new List <int>();
List <int> trianglesGrass = new List <int>();
float xPosFirst = 0f;
/*Vector3 middlePosFirst = racetrack.track.SplineAt(xPosFirst);
*
* Vector3[] tangentFirst = racetrack.track.TangentAt(xPosFirst);
*
* Vector3 forwardFirst = tangentFirst[1] - tangentFirst[0];
* forwardFirst.Normalize();
* Vector3 sidewardsFirst = Quaternion.Euler(0f, 90f, 0f) * forwardFirst;
*
* sidewardsFirst.Normalize();
*
* Vector3 firstl_p = sidewardsFirst * -0.5f * racetrack.width.SplineAt(xPosFirst) + middlePosFirst;
* Vector3 firstr_p = sidewardsFirst * 0.5f * racetrack.width.SplineAt(xPosFirst) + middlePosFirst;
*
* Vector3 firstl_whiteBegin = firstl_p + sidewardsFirst * whiteStripOffset;
* Vector3 firstr_whiteBegin = firstr_p - sidewardsFirst * whiteStripOffset;
*
* Vector3 firstl_whiteInner = firstl_whiteBegin + sidewardsFirst * whiteStripWidth;
* Vector3 firstr_whiteInner = firstr_whiteBegin - sidewardsFirst * whiteStripWidth;
*
* Vector3 firstl_grassSameHeight = firstl_p - sidewardsFirst * grassWidth;
* Vector3 firstr_grassSameHeight = firstr_p + sidewardsFirst * grassWidth;
*
* Vector3 firstl_grassHill = firstl_grassSameHeight - sidewardsFirst * grassHillWidth + Vector3.Cross(sidewardsFirst, forwardFirst) * grassHillHeight;
* Vector3 firstr_grassHill = firstr_grassSameHeight + sidewardsFirst * grassHillWidth + Vector3.Cross(sidewardsFirst, forwardFirst) * grassHillHeight;*/
Vector3[] tangentFirstLeft = leftTrack.TangentAt(xPosFirst);
Vector3 forwardFirstLeft = tangentFirstLeft[1] - tangentFirstLeft[0];
forwardFirstLeft.Normalize();
Vector3 sidewardsFirstLeft = Quaternion.Euler(0f, 90f, 0f) * forwardFirstLeft;
sidewardsFirstLeft.Normalize();
Vector3[] tangentFirstRight = rightTrack.TangentAt(xPosFirst);
Vector3 forwardFirstRight = tangentFirstRight[1] - tangentFirstRight[0];
forwardFirstRight.Normalize();
Vector3 sidewardsFirstRight = Quaternion.Euler(0f, 90f, 0f) * forwardFirstRight;
sidewardsFirstRight.Normalize();
Vector3 firstl_p = leftTrack.SplineAt(xPosFirst);
Vector3 firstr_p = rightTrack.SplineAt(xPosFirst);
Vector3 firstl_whiteBegin = firstl_p + sidewardsFirstLeft * whiteStripOffset;
Vector3 firstr_whiteBegin = firstr_p - sidewardsFirstRight * whiteStripOffset;
Vector3 firstl_whiteInner = firstl_whiteBegin + sidewardsFirstLeft * whiteStripWidth;
Vector3 firstr_whiteInner = firstr_whiteBegin - sidewardsFirstRight * whiteStripWidth;
Vector3 firstl_grassSameHeight = firstl_p - sidewardsFirstLeft * grassWidth;
Vector3 firstr_grassSameHeight = firstr_p + sidewardsFirstRight * grassWidth;
Vector3 firstl_grassHill = firstl_grassSameHeight - sidewardsFirstLeft * grassHillWidth + Vector3.Cross(sidewardsFirstLeft, forwardFirstLeft) * grassHillHeight;
Vector3 firstr_grassHill = firstr_grassSameHeight + sidewardsFirstRight * grassHillWidth + Vector3.Cross(sidewardsFirstRight, forwardFirstRight) * grassHillHeight;
vertices.Add(firstl_grassHill);
vertices.Add(firstl_grassSameHeight);
vertices.Add(firstl_p);
vertices.Add(firstl_whiteBegin);
vertices.Add(firstl_whiteInner);
vertices.Add(firstr_whiteInner);
vertices.Add(firstr_whiteBegin);
vertices.Add(firstr_p);
vertices.Add(firstr_grassSameHeight);
vertices.Add(firstr_grassHill);
uvs.Add(new Vector2(firstl_grassHill.x, firstl_grassHill.z));
uvs.Add(new Vector2(firstl_grassSameHeight.x, firstl_grassSameHeight.z));
uvs.Add(new Vector2(firstl_p.x, firstl_p.z));
uvs.Add(new Vector2(firstl_whiteBegin.x, firstl_whiteBegin.z));
uvs.Add(new Vector2(firstl_whiteInner.x, firstl_whiteInner.z));
uvs.Add(new Vector2(firstr_whiteInner.x, firstr_whiteInner.z));
uvs.Add(new Vector2(firstr_whiteBegin.x, firstr_whiteBegin.z));
uvs.Add(new Vector2(firstr_p.x, firstr_p.z));
uvs.Add(new Vector2(firstr_grassSameHeight.x, firstr_grassSameHeight.z));
uvs.Add(new Vector2(firstr_grassHill.x, firstr_grassHill.z));
for (int i = 1; i < resolution; i++)
{
float xPos = ((float)i) / ((float)resolution);
/*Vector3 middlePos = racetrack.track.SplineAt(xPos);
*
* Vector3[] tangent = racetrack.track.TangentAt(xPos);
*
* Vector3 forward = tangent[1] - tangent[0];
* forward.Normalize();
* Vector3 sidewards = Quaternion.Euler(0f, 90f, 0f) * forward;
*
* sidewards.Normalize();
*
* Vector3 l_p = sidewards * -0.5f * racetrack.width.SplineAt(xPos) + middlePos;
* Vector3 r_p = sidewards * 0.5f * racetrack.width.SplineAt(xPos) + middlePos;
*
* Vector3 l_whiteBegin = l_p + sidewards * whiteStripOffset;
* Vector3 r_whiteBegin = r_p - sidewards * whiteStripOffset;
*
* Vector3 l_whiteInner = l_whiteBegin + sidewards * whiteStripWidth;
* Vector3 r_whiteInner = r_whiteBegin - sidewards * whiteStripWidth;
*
* Vector3 l_grassSameHeight = l_p - sidewards * grassWidth;
* Vector3 r_grassSameHeight = r_p + sidewards * grassWidth;
*
* Vector3 l_grassHill = l_grassSameHeight - sidewards * grassHillWidth + Vector3.Cross(sidewards, forward) * grassHillHeight;
* Vector3 r_grassHill = r_grassSameHeight + sidewards * grassHillWidth + Vector3.Cross(sidewards, forward) * grassHillHeight;*/
Vector3[] tangentLeft = leftTrack.TangentAt(xPos);
Vector3 forwardLeft = tangentLeft[1] - tangentLeft[0];
forwardLeft.Normalize();
Vector3 sidewardsLeft = Quaternion.Euler(0f, 90f, 0f) * forwardLeft;
sidewardsLeft.Normalize();
Vector3[] tangentRight = rightTrack.TangentAt(xPos);
Vector3 forwardRight = tangentRight[1] - tangentRight[0];
forwardRight.Normalize();
Vector3 sidewardsRight = Quaternion.Euler(0f, 90f, 0f) * forwardRight;
sidewardsRight.Normalize();
Vector3 l_p = leftTrack.SplineAt(xPos);
Vector3 r_p = rightTrack.SplineAt(xPos);
Vector3 l_whiteBegin = l_p + sidewardsLeft * whiteStripOffset;
Vector3 r_whiteBegin = r_p - sidewardsRight * whiteStripOffset;
Vector3 l_whiteInner = l_whiteBegin + sidewardsLeft * whiteStripWidth;
Vector3 r_whiteInner = r_whiteBegin - sidewardsRight * whiteStripWidth;
Vector3 l_grassSameHeight = l_p - sidewardsLeft * grassWidth;
Vector3 r_grassSameHeight = r_p + sidewardsRight * grassWidth;
Vector3 l_grassHill = l_grassSameHeight - sidewardsLeft * grassHillWidth + Vector3.Cross(sidewardsLeft, forwardLeft) * grassHillHeight;
Vector3 r_grassHill = r_grassSameHeight + sidewardsRight * grassHillWidth + Vector3.Cross(sidewardsRight, forwardRight) * grassHillHeight;
vertices.Add(l_grassHill);
vertices.Add(l_grassSameHeight);
vertices.Add(l_p);
vertices.Add(l_whiteBegin);
vertices.Add(l_whiteInner);
vertices.Add(r_whiteInner);
vertices.Add(r_whiteBegin);
vertices.Add(r_p);
vertices.Add(r_grassSameHeight);
vertices.Add(r_grassHill);
uvs.Add(new Vector2(l_grassHill.x, l_grassHill.z));
uvs.Add(new Vector2(l_grassSameHeight.x, l_grassSameHeight.z));
uvs.Add(new Vector2(l_p.x, l_p.z));
uvs.Add(new Vector2(l_whiteBegin.x, l_whiteBegin.z));
uvs.Add(new Vector2(l_whiteInner.x, l_whiteInner.z));
uvs.Add(new Vector2(r_whiteInner.x, r_whiteInner.z));
uvs.Add(new Vector2(r_whiteBegin.x, r_whiteBegin.z));
uvs.Add(new Vector2(r_p.x, r_p.z));
uvs.Add(new Vector2(r_grassSameHeight.x, r_grassSameHeight.z));
uvs.Add(new Vector2(r_grassHill.x, r_grassHill.z));
triangles.Add((i - 1) * 10 + 2);
triangles.Add((i - 0) * 10 + 2);
triangles.Add((i - 1) * 10 + 3);
triangles.Add((i - 1) * 10 + 3);
triangles.Add((i - 0) * 10 + 2);
triangles.Add((i - 0) * 10 + 3);
triangles.Add((i - 1) * 10 + 4);
triangles.Add((i - 0) * 10 + 4);
triangles.Add((i - 1) * 10 + 5);
triangles.Add((i - 1) * 10 + 5);
triangles.Add((i - 0) * 10 + 4);
triangles.Add((i - 0) * 10 + 5);
triangles.Add((i - 1) * 10 + 6);
triangles.Add((i - 0) * 10 + 6);
triangles.Add((i - 1) * 10 + 7);
triangles.Add((i - 1) * 10 + 7);
triangles.Add((i - 0) * 10 + 6);
triangles.Add((i - 0) * 10 + 7);
trianglesWhite.Add((i - 1) * 10 + 3);
trianglesWhite.Add((i - 0) * 10 + 3);
trianglesWhite.Add((i - 1) * 10 + 4);
trianglesWhite.Add((i - 1) * 10 + 4);
trianglesWhite.Add((i - 0) * 10 + 3);
trianglesWhite.Add((i - 0) * 10 + 4);
trianglesWhite.Add((i - 1) * 10 + 5);
trianglesWhite.Add((i - 0) * 10 + 5);
trianglesWhite.Add((i - 1) * 10 + 6);
trianglesWhite.Add((i - 1) * 10 + 6);
trianglesWhite.Add((i - 0) * 10 + 5);
trianglesWhite.Add((i - 0) * 10 + 6);
trianglesGrass.Add((i - 1) * 10 + 0);
trianglesGrass.Add((i - 0) * 10 + 0);
trianglesGrass.Add((i - 1) * 10 + 1);
trianglesGrass.Add((i - 1) * 10 + 1);
trianglesGrass.Add((i - 0) * 10 + 0);
trianglesGrass.Add((i - 0) * 10 + 1);
trianglesGrass.Add((i - 1) * 10 + 1);
trianglesGrass.Add((i - 0) * 10 + 1);
trianglesGrass.Add((i - 1) * 10 + 2);
trianglesGrass.Add((i - 1) * 10 + 2);
trianglesGrass.Add((i - 0) * 10 + 1);
trianglesGrass.Add((i - 0) * 10 + 2);
trianglesGrass.Add((i - 1) * 10 + 7);
trianglesGrass.Add((i - 0) * 10 + 7);
trianglesGrass.Add((i - 1) * 10 + 8);
trianglesGrass.Add((i - 1) * 10 + 8);
trianglesGrass.Add((i - 0) * 10 + 7);
trianglesGrass.Add((i - 0) * 10 + 8);
trianglesGrass.Add((i - 1) * 10 + 8);
trianglesGrass.Add((i - 0) * 10 + 8);
trianglesGrass.Add((i - 1) * 10 + 9);
trianglesGrass.Add((i - 1) * 10 + 9);
trianglesGrass.Add((i - 0) * 10 + 8);
trianglesGrass.Add((i - 0) * 10 + 9);
}
if (true)
{
#region Last One
triangles.Add((resolution - 1) * 10 + 2);
triangles.Add((0) * 10 + 2);
triangles.Add((resolution - 1) * 10 + 3);
triangles.Add((resolution - 1) * 10 + 3);
triangles.Add((0) * 10 + 2);
triangles.Add((0) * 10 + 3);
triangles.Add((resolution - 1) * 10 + 4);
triangles.Add((0) * 10 + 4);
triangles.Add((resolution - 1) * 10 + 5);
triangles.Add((resolution - 1) * 10 + 5);
triangles.Add((0) * 10 + 4);
triangles.Add((0) * 10 + 5);
triangles.Add((resolution - 1) * 10 + 6);
triangles.Add((0) * 10 + 6);
triangles.Add((resolution - 1) * 10 + 7);
triangles.Add((resolution - 1) * 10 + 7);
triangles.Add((0) * 10 + 6);
triangles.Add((0) * 10 + 7);
trianglesWhite.Add((resolution - 1) * 10 + 3);
trianglesWhite.Add((0) * 10 + 3);
trianglesWhite.Add((resolution - 1) * 10 + 4);
trianglesWhite.Add((resolution - 1) * 10 + 4);
trianglesWhite.Add((0) * 10 + 3);
trianglesWhite.Add((0) * 10 + 4);
trianglesWhite.Add((resolution - 1) * 10 + 5);
trianglesWhite.Add((0) * 10 + 5);
trianglesWhite.Add((resolution - 1) * 10 + 6);
trianglesWhite.Add((resolution - 1) * 10 + 6);
trianglesWhite.Add((0) * 10 + 5);
trianglesWhite.Add((0) * 10 + 6);
trianglesGrass.Add((resolution - 1) * 10 + 0);
trianglesGrass.Add((0) * 10 + 0);
trianglesGrass.Add((resolution - 1) * 10 + 1);
trianglesGrass.Add((resolution - 1) * 10 + 1);
trianglesGrass.Add((0) * 10 + 0);
trianglesGrass.Add((0) * 10 + 1);
trianglesGrass.Add((resolution - 1) * 10 + 1);
trianglesGrass.Add((0) * 10 + 1);
trianglesGrass.Add((resolution - 1) * 10 + 2);
trianglesGrass.Add((resolution - 1) * 10 + 2);
trianglesGrass.Add((0) * 10 + 1);
trianglesGrass.Add((0) * 10 + 2);
trianglesGrass.Add((resolution - 1) * 10 + 7);
trianglesGrass.Add((0) * 10 + 7);
trianglesGrass.Add((resolution - 1) * 10 + 8);
trianglesGrass.Add((resolution - 1) * 10 + 8);
trianglesGrass.Add((0) * 10 + 7);
trianglesGrass.Add((0) * 10 + 8);
trianglesGrass.Add((resolution - 1) * 10 + 8);
trianglesGrass.Add((0) * 10 + 8);
trianglesGrass.Add((resolution - 1) * 10 + 9);
trianglesGrass.Add((resolution - 1) * 10 + 9);
trianglesGrass.Add((0) * 10 + 8);
trianglesGrass.Add((0) * 10 + 9);
#endregion
}
meshFilter.mesh.Clear();
meshFilter.mesh.vertices = vertices.ToArray();
meshFilter.mesh.uv = uvs.ToArray();
meshFilter.mesh.subMeshCount = 3;
Debug.Log("Submeshcount: " + meshFilter.mesh.subMeshCount);
meshFilter.mesh.SetTriangles(triangles.ToArray(), 0);
meshFilter.mesh.SetTriangles(trianglesWhite.ToArray(), 1);
meshFilter.mesh.SetTriangles(trianglesGrass.ToArray(), 2);
meshFilter.mesh.RecalculateNormals();
instTrack.GetComponent <MeshCollider>().sharedMesh = meshFilter.mesh;
/*for (int i = 0; i < resolution; i++)
* {
* float xPos = ((float)i) / ((float)resolution);
*
* GameObject inst = (GameObject)Instantiate(prefabPoint);
* inst.transform.position = racetrack.track.SplineAt(xPos);
* }*/
return(racetrack);
}