/// <summary>
/// Checks to see whether a given point is within a specified distance from a bezier curve. In the XZ-plane. Outputs the closes t-value (to the given point) on the curve.
/// </summary>
/// <param name="curve"></param>
/// <param name="distanceThreshold"></param>
/// <param name="pointOfInterest"></param>
/// <param name="t"></param>
/// <returns></returns>
public static bool IsCloseToCurveXZ(Bezier3 curve, float distanceThreshold, Vector3 pointOfInterest, out float t)
{
//constrain to XZ plane
curve = BezierXZ(curve);
pointOfInterest.y = 0f;
//initialize output t
t = 0.5f;
float _radiusSqr = distanceThreshold * distanceThreshold;
float _distanceSqr = curve.DistanceSqr(pointOfInterest, out t);
if (_distanceSqr <= _radiusSqr)
{
return(true);
}
else
{
return(false);
}
}
public static bool Prefix(ref NetSegment __instance, ushort segmentID, Segment3 ray, float snapElevation, bool nameOnly, out float t, out float priority, ref bool __result)
{
// NON-STOCK CODE STARTS
float laneOffset = 0;
float startOffset = 0;
float endOffset = 0;
bool IsCSURSLane = CSURUtil.IsCSURSLane(__instance.Info.m_netAI.m_info, ref laneOffset, ref startOffset, ref endOffset);
if (CSURUtil.IsCSUROffset(__instance.Info.m_netAI.m_info) && !IsCSURSLane)
{
__result = NetSegmentRayCastMasked(__instance, segmentID, ray, -1000f, false, out t, out priority);
return(false);
}
// NON-STOCK CODE ENDS
NetInfo info = __instance.Info;
t = 0f;
priority = 0f;
if (nameOnly && (__instance.m_flags & NetSegment.Flags.NameVisible2) == NetSegment.Flags.None)
{
__result = false;
return(false);
}
Bounds bounds = __instance.m_bounds;
bounds.Expand(16f);
if (!bounds.IntersectRay(new Ray(ray.a, ray.b - ray.a)))
{
__result = false;
return(false);
}
NetManager instance = Singleton <NetManager> .instance;
Bezier3 bezier = default(Bezier3);
bezier.a = instance.m_nodes.m_buffer[__instance.m_startNode].m_position;
bezier.d = instance.m_nodes.m_buffer[__instance.m_endNode].m_position;
bool result = false;
if (nameOnly)
{
RenderManager instance2 = Singleton <RenderManager> .instance;
if (instance2.GetInstanceIndex((uint)(49152 + segmentID), out uint instanceIndex))
{
InstanceManager.NameData nameData = instance2.m_instances[instanceIndex].m_nameData;
Vector3 position = instance2.m_instances[instanceIndex].m_position;
Matrix4x4 dataMatrix = instance2.m_instances[instanceIndex].m_dataMatrix2;
float num = Vector3.Distance(position, ray.a);
if (nameData != null && num < 1000f)
{
float snapElevation2 = info.m_netAI.GetSnapElevation();
bezier.a.y += snapElevation2;
bezier.d.y += snapElevation2;
NetSegment.CalculateMiddlePoints(bezier.a, __instance.m_startDirection, bezier.d, __instance.m_endDirection, true, true, out bezier.b, out bezier.c);
float num2 = Mathf.Max(1f, Mathf.Abs(dataMatrix.m33 - dataMatrix.m30));
float d = num * 0.0002f + 0.05f / (1f + num * 0.001f);
Vector2 vector = nameData.m_size * d;
float t2 = Mathf.Max(0f, 0.5f - vector.x / num2 * 0.5f);
float t3 = Mathf.Min(1f, 0.5f + vector.x / num2 * 0.5f);
bezier = bezier.Cut(t2, t3);
float num3 = bezier.DistanceSqr(ray, out float u, out float _);
if (num3 < vector.y * vector.y * 0.25f)
{
Vector3 b = bezier.Position(u);
if (Segment1.Intersect(ray.a.y, ray.b.y, b.y, out u))
{
num3 = Vector3.SqrMagnitude(ray.Position(u) - b);
if (num3 < vector.y * vector.y * 0.25f)
{
t = u;
result = true;
}
}
}
}
}
}
else
{
info.m_netAI.GetRayCastHeights(segmentID, ref __instance, out float leftMin, out float rightMin, out float max);
bezier.a.y += max;
bezier.d.y += max;
bool flag = (instance.m_nodes.m_buffer[__instance.m_startNode].m_flags & NetNode.Flags.Middle) != NetNode.Flags.None;
bool flag2 = (instance.m_nodes.m_buffer[__instance.m_endNode].m_flags & NetNode.Flags.Middle) != NetNode.Flags.None;
NetSegment.CalculateMiddlePoints(bezier.a, __instance.m_startDirection, bezier.d, __instance.m_endDirection, flag, flag2, out bezier.b, out bezier.c);
// NON-STOCK CODE STARTS
if (IsCSURSLane)
{
float vehicleLaneNum = CSURUtil.CountCSURSVehicleLanes(info);
float otherLaneNum = CSURUtil.CountCSURSOtherLanes(info);
float laneNum = vehicleLaneNum + otherLaneNum;
startOffset = startOffset * 3.75f - laneNum * 1.875f + 1.875f + otherLaneNum * 3.75f;
endOffset = endOffset * 3.75f - laneNum * 1.875f + 1.875f + otherLaneNum * 3.75f;
if ((__instance.m_flags & NetSegment.Flags.Invert) != 0)
{
startOffset = -startOffset;
endOffset = -endOffset;
}
//EG: before patch: point1-point4 is 1.5*3.75
//After patch, point1-point4 is (1 1.3333 1.6667 2)*3.75
Vector3 newBezierA = bezier.a + (new Vector3(__instance.m_startDirection.z, 0, -__instance.m_startDirection.x).normalized) * (startOffset);
Vector3 newBezierBDir = VectorUtils.NormalizeXZ(bezier.Tangent(0.333f));
Vector3 newBezierB = bezier.b + (new Vector3(newBezierBDir.z, 0, -newBezierBDir.x).normalized) * (startOffset * 0.667f + endOffset * 0.333f);
Vector3 newBezierCDir = VectorUtils.NormalizeXZ(bezier.Tangent(0.667f));
Vector3 newBezierC = bezier.c + (new Vector3(newBezierCDir.z, 0, -newBezierCDir.x).normalized) * (startOffset * 0.333f + endOffset * 0.667f);
Vector3 newBezierD = bezier.d + (new Vector3(-__instance.m_endDirection.z, 0, __instance.m_endDirection.x).normalized) * (endOffset);
bezier.a = newBezierA;
bezier.b = newBezierB;
bezier.c = newBezierC;
bezier.d = newBezierD;
}
float minNodeDistance = info.GetMinNodeDistance();
float collisionHalfWidth = info.m_netAI.GetCollisionHalfWidth();
float num4 = (float)(int)instance.m_nodes.m_buffer[__instance.m_startNode].m_elevation;
float num5 = (float)(int)instance.m_nodes.m_buffer[__instance.m_endNode].m_elevation;
if (info.m_netAI.IsUnderground())
{
num4 = 0f - num4;
num5 = 0f - num5;
}
num4 += info.m_netAI.GetSnapElevation();
num5 += info.m_netAI.GetSnapElevation();
float a = Mathf.Lerp(minNodeDistance, collisionHalfWidth, Mathf.Clamp01(Mathf.Abs(snapElevation - num4) / 12f));
float b2 = Mathf.Lerp(minNodeDistance, collisionHalfWidth, Mathf.Clamp01(Mathf.Abs(snapElevation - num5) / 12f));
float num6 = Mathf.Min(leftMin, rightMin);
t = 1000000f;
priority = 1000000f;
Segment3 segment = default(Segment3);
segment.a = bezier.a;
for (int i = 1; i <= 16; i++)
{
segment.b = bezier.Position((float)i / 16f);
float num7 = ray.DistanceSqr(segment, out float u2, out float v2);
float num8 = Mathf.Lerp(a, b2, ((float)(i - 1) + v2) / 16f);
Vector3 vector2 = segment.Position(v2);
if (num7 < priority && Segment1.Intersect(ray.a.y, ray.b.y, vector2.y, out u2))
{
Vector3 vector3 = ray.Position(u2);
num7 = Vector3.SqrMagnitude(vector3 - vector2);
if (num7 < priority && num7 < num8 * num8)
{
if (flag && i == 1 && v2 < 0.001f)
{
Vector3 rhs = segment.a - segment.b;
u2 += Mathf.Max(0f, Vector3.Dot(vector3, rhs)) / Mathf.Max(0.001f, Mathf.Sqrt(rhs.sqrMagnitude * ray.LengthSqr()));
}
if (flag2 && i == 16 && v2 > 0.999f)
{
Vector3 rhs2 = segment.b - segment.a;
u2 += Mathf.Max(0f, Vector3.Dot(vector3, rhs2)) / Mathf.Max(0.001f, Mathf.Sqrt(rhs2.sqrMagnitude * ray.LengthSqr()));
}
priority = num7;
t = u2;
result = true;
}
}
if (num6 < max)
{
float num9 = vector2.y + num6 - max;
if (Mathf.Max(ray.a.y, ray.b.y) > num9 && Mathf.Min(ray.a.y, ray.b.y) < vector2.y)
{
Segment2 segment2 = default(Segment2);
float num10;
if (Segment1.Intersect(ray.a.y, ray.b.y, vector2.y, out u2))
{
segment2.a = VectorUtils.XZ(ray.Position(u2));
num10 = u2;
}
else
{
segment2.a = VectorUtils.XZ(ray.a);
num10 = 0f;
}
float num11;
if (Segment1.Intersect(ray.a.y, ray.b.y, num9, out u2))
{
segment2.b = VectorUtils.XZ(ray.Position(u2));
num11 = u2;
}
else
{
segment2.b = VectorUtils.XZ(ray.b);
num11 = 1f;
}
num7 = segment2.DistanceSqr(VectorUtils.XZ(vector2), out u2);
if (num7 < priority && num7 < num8 * num8)
{
u2 = num10 + (num11 - num10) * u2;
Vector3 lhs = ray.Position(u2);
if (flag && i == 1 && v2 < 0.001f)
{
Vector3 rhs3 = segment.a - segment.b;
u2 += Mathf.Max(0f, Vector3.Dot(lhs, rhs3)) / Mathf.Max(0.001f, Mathf.Sqrt(rhs3.sqrMagnitude * ray.LengthSqr()));
}
if (flag2 && i == 16 && v2 > 0.999f)
{
Vector3 rhs4 = segment.b - segment.a;
u2 += Mathf.Max(0f, Vector3.Dot(lhs, rhs4)) / Mathf.Max(0.001f, Mathf.Sqrt(rhs4.sqrMagnitude * ray.LengthSqr()));
}
priority = num7;
t = u2;
result = true;
}
}
}
segment.a = segment.b;
}
priority = Mathf.Max(0f, Mathf.Sqrt(priority) - collisionHalfWidth);
}
__result = result;
return(false);
}
public static bool RayCast(ref NetSegment mysegment, ushort segmentID, Segment3 ray, float snapElevation, bool nameOnly, out float t, out float priority)
{
if (CSUROffset.IsCSUROffset(mysegment.Info.m_netAI.m_info))
{
return(NetSegmentRayCastMasked(mysegment, segmentID, ray, -1000f, false, out t, out priority));
}
NetInfo info = mysegment.Info;
t = 0f;
priority = 0f;
if (nameOnly && (mysegment.m_flags & NetSegment.Flags.NameVisible2) == NetSegment.Flags.None)
{
return(false);
}
Bounds bounds = mysegment.m_bounds;
bounds.Expand(16f);
if (!bounds.IntersectRay(new Ray(ray.a, ray.b - ray.a)))
{
return(false);
}
NetManager instance = Singleton <NetManager> .instance;
Bezier3 bezier = default(Bezier3);
bezier.a = instance.m_nodes.m_buffer[mysegment.m_startNode].m_position;
bezier.d = instance.m_nodes.m_buffer[mysegment.m_endNode].m_position;
bool result = false;
if (nameOnly)
{
RenderManager instance2 = Singleton <RenderManager> .instance;
if (instance2.GetInstanceIndex((uint)(49152 + segmentID), out uint instanceIndex))
{
InstanceManager.NameData nameData = instance2.m_instances[instanceIndex].m_nameData;
Vector3 position = instance2.m_instances[instanceIndex].m_position;
Matrix4x4 dataMatrix = instance2.m_instances[instanceIndex].m_dataMatrix2;
float num = Vector3.Distance(position, ray.a);
if (nameData != null && num < 1000f)
{
float snapElevation2 = info.m_netAI.GetSnapElevation();
bezier.a.y += snapElevation2;
bezier.d.y += snapElevation2;
NetSegment.CalculateMiddlePoints(bezier.a, mysegment.m_startDirection, bezier.d, mysegment.m_endDirection, true, true, out bezier.b, out bezier.c);
float num2 = Mathf.Max(1f, Mathf.Abs(dataMatrix.m33 - dataMatrix.m30));
float d = num * 0.0002f + 0.05f / (1f + num * 0.001f);
Vector2 vector = nameData.m_size * d;
float t2 = Mathf.Max(0f, 0.5f - vector.x / num2 * 0.5f);
float t3 = Mathf.Min(1f, 0.5f + vector.x / num2 * 0.5f);
bezier = bezier.Cut(t2, t3);
float num3 = bezier.DistanceSqr(ray, out float u, out float _);
if (num3 < vector.y * vector.y * 0.25f)
{
Vector3 b = bezier.Position(u);
if (Segment1.Intersect(ray.a.y, ray.b.y, b.y, out u))
{
num3 = Vector3.SqrMagnitude(ray.Position(u) - b);
if (num3 < vector.y * vector.y * 0.25f)
{
t = u;
result = true;
}
}
}
}
}
}
else
{
info.m_netAI.GetRayCastHeights(segmentID, ref mysegment, out float leftMin, out float rightMin, out float max);
bezier.a.y += max;
bezier.d.y += max;
bool flag = (instance.m_nodes.m_buffer[mysegment.m_startNode].m_flags & NetNode.Flags.Middle) != NetNode.Flags.None;
bool flag2 = (instance.m_nodes.m_buffer[mysegment.m_endNode].m_flags & NetNode.Flags.Middle) != NetNode.Flags.None;
NetSegment.CalculateMiddlePoints(bezier.a, mysegment.m_startDirection, bezier.d, mysegment.m_endDirection, flag, flag2, out bezier.b, out bezier.c);
float minNodeDistance = info.GetMinNodeDistance();
float collisionHalfWidth = info.m_netAI.GetCollisionHalfWidth();
float num4 = (float)(int)instance.m_nodes.m_buffer[mysegment.m_startNode].m_elevation;
float num5 = (float)(int)instance.m_nodes.m_buffer[mysegment.m_endNode].m_elevation;
if (info.m_netAI.IsUnderground())
{
num4 = 0f - num4;
num5 = 0f - num5;
}
num4 += info.m_netAI.GetSnapElevation();
num5 += info.m_netAI.GetSnapElevation();
float a = Mathf.Lerp(minNodeDistance, collisionHalfWidth, Mathf.Clamp01(Mathf.Abs(snapElevation - num4) / 12f));
float b2 = Mathf.Lerp(minNodeDistance, collisionHalfWidth, Mathf.Clamp01(Mathf.Abs(snapElevation - num5) / 12f));
float num6 = Mathf.Min(leftMin, rightMin);
t = 1000000f;
priority = 1000000f;
Segment3 segment = default(Segment3);
segment.a = bezier.a;
for (int i = 1; i <= 16; i++)
{
segment.b = bezier.Position((float)i / 16f);
float num7 = ray.DistanceSqr(segment, out float u2, out float v2);
float num8 = Mathf.Lerp(a, b2, ((float)(i - 1) + v2) / 16f);
Vector3 vector2 = segment.Position(v2);
if (num7 < priority && Segment1.Intersect(ray.a.y, ray.b.y, vector2.y, out u2))
{
Vector3 vector3 = ray.Position(u2);
num7 = Vector3.SqrMagnitude(vector3 - vector2);
if (num7 < priority && num7 < num8 * num8)
{
if (flag && i == 1 && v2 < 0.001f)
{
Vector3 rhs = segment.a - segment.b;
u2 += Mathf.Max(0f, Vector3.Dot(vector3, rhs)) / Mathf.Max(0.001f, Mathf.Sqrt(rhs.sqrMagnitude * ray.LengthSqr()));
}
if (flag2 && i == 16 && v2 > 0.999f)
{
Vector3 rhs2 = segment.b - segment.a;
u2 += Mathf.Max(0f, Vector3.Dot(vector3, rhs2)) / Mathf.Max(0.001f, Mathf.Sqrt(rhs2.sqrMagnitude * ray.LengthSqr()));
}
priority = num7;
t = u2;
result = true;
}
}
if (num6 < max)
{
float num9 = vector2.y + num6 - max;
if (Mathf.Max(ray.a.y, ray.b.y) > num9 && Mathf.Min(ray.a.y, ray.b.y) < vector2.y)
{
Segment2 segment2 = default(Segment2);
float num10;
if (Segment1.Intersect(ray.a.y, ray.b.y, vector2.y, out u2))
{
segment2.a = VectorUtils.XZ(ray.Position(u2));
num10 = u2;
}
else
{
segment2.a = VectorUtils.XZ(ray.a);
num10 = 0f;
}
float num11;
if (Segment1.Intersect(ray.a.y, ray.b.y, num9, out u2))
{
segment2.b = VectorUtils.XZ(ray.Position(u2));
num11 = u2;
}
else
{
segment2.b = VectorUtils.XZ(ray.b);
num11 = 1f;
}
num7 = segment2.DistanceSqr(VectorUtils.XZ(vector2), out u2);
if (num7 < priority && num7 < num8 * num8)
{
u2 = num10 + (num11 - num10) * u2;
Vector3 lhs = ray.Position(u2);
if (flag && i == 1 && v2 < 0.001f)
{
Vector3 rhs3 = segment.a - segment.b;
u2 += Mathf.Max(0f, Vector3.Dot(lhs, rhs3)) / Mathf.Max(0.001f, Mathf.Sqrt(rhs3.sqrMagnitude * ray.LengthSqr()));
}
if (flag2 && i == 16 && v2 > 0.999f)
{
Vector3 rhs4 = segment.b - segment.a;
u2 += Mathf.Max(0f, Vector3.Dot(lhs, rhs4)) / Mathf.Max(0.001f, Mathf.Sqrt(rhs4.sqrMagnitude * ray.LengthSqr()));
}
priority = num7;
t = u2;
result = true;
}
}
}
segment.a = segment.b;
}
priority = Mathf.Max(0f, Mathf.Sqrt(priority) - collisionHalfWidth);
}
return(result);
}