void AddSolidLaneLine(
NativeArray <RigidTransform> samples,
float xOffset,
RoadMarking marking,
DynamicBuffer <CombinedVertex> vertexBuffer,
DynamicBuffer <Triangle> triangleBuffer,
DynamicBuffer <SubMesh> subMeshBuffer)
{
var newSubMesh = new SubMesh();
var markingWidth = marking.Width / 2;
var leftOffsetSpline = SplineUtility.OffsetSpline(samples, new float3(-markingWidth + xOffset, 0f, 0f), Allocator.Temp);
var rightOffsetSpline = SplineUtility.OffsetSpline(samples, new float3(markingWidth + xOffset, 0f, 0f), Allocator.Temp);
newSubMesh.VertexStartIndex = vertexBuffer.Length;
newSubMesh.VertexCount = samples.Length * 2;
vertexBuffer.ResizeUninitialized(vertexBuffer.Length + samples.Length * 2);
var upVector = new float3(0f, 1f, 0f);
for (int i = 0, j = newSubMesh.VertexStartIndex; i < samples.Length; i++)
{
var leftPoint = leftOffsetSpline[i];
vertexBuffer[j++] = new CombinedVertex
{
Vertex = leftPoint.pos,
Normal = math.mul(leftPoint.rot, upVector),
Uv = leftPoint.pos.xz
};
var rightPoint = rightOffsetSpline[i];
vertexBuffer[j++] = new CombinedVertex
{
Vertex = rightPoint.pos,
Normal = math.mul(rightPoint.rot, upVector),
Uv = rightPoint.pos.xz
};
}
leftOffsetSpline.Dispose();
rightOffsetSpline.Dispose();
newSubMesh.TriangleStartIndex = triangleBuffer.Length;
newSubMesh.TriangleCount = (samples.Length - 1) * 6;
triangleBuffer.ResizeUninitialized(triangleBuffer.Length + newSubMesh.TriangleCount);
for (int i = 0, j = newSubMesh.TriangleStartIndex; i < newSubMesh.VertexCount - 2; i += 2)
{
triangleBuffer[j++] = i;
triangleBuffer[j++] = i + 3;
triangleBuffer[j++] = i + 1;
triangleBuffer[j++] = i;
triangleBuffer[j++] = i + 2;
triangleBuffer[j++] = i + 3;
}
newSubMesh.Material = marking.Material;
subMeshBuffer.Add(newSubMesh);
}
void AppendRightTurnCornerSamples(NativeList <RigidTransform> samples, Entity cornerEntity)
{
var cornerSamples = RoadCenterLineSamples[cornerEntity]
.Reinterpret <RigidTransform>().AsNativeArray();
var offset = new float3(-OffsetFromCurb, 0f, 0f);
var offsetSamples = SplineUtility.OffsetSpline(cornerSamples, offset, Allocator.Temp);
samples.AddRange(offsetSamples);
offsetSamples.Dispose();
}
void AppendRightTurnCornerSamples(NativeList <RigidTransform> samples, Entity cornerEntity)
{
var cornerSamples = RoadCenterLineSamples[cornerEntity]
.Reinterpret <RigidTransform>().AsNativeArray();
var lateralProfileEntity = LateralProfileEntityRefs[cornerEntity].Reinterpret <Entity>()[0];
var lateralProfileSamples = LateralProfileSampleBuffers[lateralProfileEntity].Reinterpret <float2>();
var lateralOffset = lateralProfileSamples[lateralProfileSamples.Length - 1].x;
var offset = new float3(lateralOffset, 0f, 0f);
var offsetSamples = SplineUtility.OffsetSpline(cornerSamples, offset, Allocator.Temp);
samples.AddRange(offsetSamples);
offsetSamples.Dispose();
}
void AppendRoadSamples(NativeList <RigidTransform> samples, IntersectionRoadConnection connection)
{
var centerLineSamples = RoadCenterLineSamples[connection.Road]
.Reinterpret <RigidTransform>().AsNativeArray();
var lateralProfileEntity = LateralProfileEntityRefs[connection.Road].Reinterpret <Entity>()[0];
var lateralProfileSamples = LateralProfileSampleBuffers[lateralProfileEntity].Reinterpret <float2>();
var lateralOffset = connection.Direction == IntersectionRoadDirection.Incoming
? lateralProfileSamples[0].x
: lateralProfileSamples[lateralProfileSamples.Length - 1].x;
var offset = new float3(lateralOffset, 0f, 0f);
var offsetSamples = SplineUtility.OffsetSpline(centerLineSamples, offset, Allocator.Temp);
if (connection.Direction == IntersectionRoadDirection.Incoming)
{
SplineUtility.ReverseSpline(offsetSamples);
}
samples.AddRange(offsetSamples);
offsetSamples.Dispose();
}
void AppendRoadSamples(NativeList <RigidTransform> samples, IntersectionRoadConnection connection)
{
var centerLineSamples = RoadCenterLineSamples[connection.Road]
.Reinterpret <RigidTransform>().AsNativeArray();
var lateralProfileEntity = LateralProfileEntityRefs[connection.Road].Reinterpret <Entity>()[0];
var lateralProfile = LateralProfileComponents[lateralProfileEntity];
var lateralOffset = connection.Direction == IntersectionRoadDirection.Incoming
? lateralProfile.LeftDrivableOffset.x + OffsetFromCurb
: lateralProfile.RightDrivableOffset.x - OffsetFromCurb;
var offset = new float3(lateralOffset, 0f, 0f);
var offsetSamples = SplineUtility.OffsetSpline(centerLineSamples, offset, Allocator.Temp);
if (connection.Direction == IntersectionRoadDirection.Incoming)
{
SplineUtility.ReverseSpline(offsetSamples);
}
samples.AddRange(offsetSamples);
offsetSamples.Dispose();
}
void AddDashedLaneLine(
NativeArray <RigidTransform> samples,
float xOffset,
RoadMarking marking,
DynamicBuffer <CombinedVertex> vertexBuffer,
DynamicBuffer <Triangle> triangleBuffer,
DynamicBuffer <SubMesh> subMeshBuffer,
DynamicBuffer <RigidTransform> roadMarkingSamples,
DynamicBuffer <DashPoint> dashPoints)
{
DashSamples(samples, marking, out var dashSamples, out var dashCaps);
roadMarkingSamples.AddRange(dashSamples);
dashPoints.AddRange(dashCaps);
var markingWidth = marking.Width / 2;
var leftOffsetSpline = SplineUtility.OffsetSpline(dashSamples, new float3(-markingWidth + xOffset, 0f, 0f), Allocator.Temp);
var rightOffsetSpline = SplineUtility.OffsetSpline(dashSamples, new float3(markingWidth + xOffset, 0f, 0f), Allocator.Temp);
var dashVertices = new NativeList <CombinedVertex>(leftOffsetSpline.Length / 2, Allocator.Temp);
var nonDashVertices = new NativeList <CombinedVertex>(leftOffsetSpline.Length / 2, Allocator.Temp);
var upVector = new float3(0f, 1f, 0f);
for (var i = 0; i < dashSamples.Length - 1; i++)
{
if (dashCaps[i].Cap == DashCap.Start)
{
var leftPoint = leftOffsetSpline[i];
dashVertices.Add(new CombinedVertex
{
Vertex = leftPoint.pos,
Normal = math.mul(leftPoint.rot, upVector),
Uv = leftPoint.pos.xz
});
var rightPoint = rightOffsetSpline[i];
dashVertices.Add(new CombinedVertex
{
Vertex = rightPoint.pos,
Normal = math.mul(rightPoint.rot, upVector),
Uv = rightPoint.pos.xz
});
leftPoint = leftOffsetSpline[i + 1];
dashVertices.Add(new CombinedVertex
{
Vertex = leftPoint.pos,
Normal = math.mul(leftPoint.rot, upVector),
Uv = leftPoint.pos.xz
});
rightPoint = rightOffsetSpline[i + 1];
dashVertices.Add(new CombinedVertex
{
Vertex = rightPoint.pos,
Normal = math.mul(rightPoint.rot, upVector),
Uv = rightPoint.pos.xz
});
}
else
{
var leftPoint = leftOffsetSpline[i];
nonDashVertices.Add(new CombinedVertex
{
Vertex = leftPoint.pos,
Normal = math.mul(leftPoint.rot, upVector),
Uv = leftPoint.pos.xz
});
var rightPoint = rightOffsetSpline[i];
nonDashVertices.Add(new CombinedVertex
{
Vertex = rightPoint.pos,
Normal = math.mul(rightPoint.rot, upVector),
Uv = rightPoint.pos.xz
});
leftPoint = leftOffsetSpline[i + 1];
nonDashVertices.Add(new CombinedVertex
{
Vertex = leftPoint.pos,
Normal = math.mul(leftPoint.rot, upVector),
Uv = leftPoint.pos.xz
});
rightPoint = rightOffsetSpline[i + 1];
nonDashVertices.Add(new CombinedVertex
{
Vertex = rightPoint.pos,
Normal = math.mul(rightPoint.rot, upVector),
Uv = rightPoint.pos.xz
});
}
}
leftOffsetSpline.Dispose();
rightOffsetSpline.Dispose();
dashSamples.Dispose();
dashCaps.Dispose();
var dashSubMesh = new SubMesh
{
VertexCount = dashVertices.Length,
VertexStartIndex = vertexBuffer.Length,
TriangleCount = (dashVertices.Length * 3) / 2,
TriangleStartIndex = triangleBuffer.Length,
Material = marking.Material
};
var nonDashSubMesh = new SubMesh
{
VertexCount = nonDashVertices.Length,
VertexStartIndex = dashSubMesh.VertexStartIndex + dashSubMesh.VertexCount,
TriangleCount = (nonDashVertices.Length * 3) / 2,
TriangleStartIndex = dashSubMesh.TriangleStartIndex + dashSubMesh.TriangleCount,
Material = RoadMaterial.RoadSurface
};
vertexBuffer.AddRange(dashVertices);
vertexBuffer.AddRange(nonDashVertices);
triangleBuffer.ResizeUninitialized(triangleBuffer.Length + dashSubMesh.TriangleCount + nonDashSubMesh.TriangleCount);
for (int i = 0, j = dashSubMesh.TriangleStartIndex; i < dashSubMesh.VertexCount; i += 4)
{
triangleBuffer[j++] = i;
triangleBuffer[j++] = i + 3;
triangleBuffer[j++] = i + 1;
triangleBuffer[j++] = i;
triangleBuffer[j++] = i + 2;
triangleBuffer[j++] = i + 3;
}
for (int i = 0, j = nonDashSubMesh.TriangleStartIndex; i < nonDashSubMesh.VertexCount; i += 4)
{
triangleBuffer[j++] = i;
triangleBuffer[j++] = i + 3;
triangleBuffer[j++] = i + 1;
triangleBuffer[j++] = i;
triangleBuffer[j++] = i + 2;
triangleBuffer[j++] = i + 3;
}
subMeshBuffer.Add(dashSubMesh);
subMeshBuffer.Add(nonDashSubMesh);
dashVertices.Dispose();
nonDashVertices.Dispose();
}