// Token: 0x06001A06 RID: 6662 RVA: 0x000BA6C0 File Offset: 0x000B88C0
public static void PreciseAlign(ref GameObject gameObjectInOut, Vector3 alignWithVector, Vector3 alignWithNormal, Vector3 alignWithPosition, Vector3 triangleForward, Vector3 triangleNormal, Vector3 trianglePosition)
{
Math3d.LookRotationExtended(ref gameObjectInOut, alignWithVector, alignWithNormal, triangleForward, triangleNormal);
Vector3 b = gameObjectInOut.transform.TransformPoint(trianglePosition);
Vector3 translation = alignWithPosition - b;
gameObjectInOut.transform.Translate(translation, Space.World);
}
/// <summary>
/// 空间中一个点在一个面上的投影点
/// </summary>
/// <param name="face"></param>
/// <param name="point"></param>
/// <returns></returns>
public static Vector3 ProjectPointOnPlane(Face face, Vector3 point)
{
float num = Math3d.SignedDistancePlanePoint(face, point);
num *= -1f;
Vector3 b = Math3d.SetVectorLength(face.normal, num);
return(point + b);
}
/// <summary>
/// 鼠标位置到一条线段的距离
/// </summary>
public static float MouseDistanceToLine(Vector3 linePoint1, Vector3 linePoint2)
{
Camera main = Camera.main;
Vector3 mousePosition = Input.mousePosition;
Vector3 linePoint3 = main.WorldToScreenPoint(linePoint1);
Vector3 linePoint4 = main.WorldToScreenPoint(linePoint2);
Vector3 a = Math3d.ProjectPointOnLineSegment(linePoint3, linePoint4, mousePosition);
a = new Vector3(a.x, a.y, 0f);
return((a - mousePosition).magnitude);
}
/// <summary>
/// 三个点构造一个平面
/// </summary>
public static Face PlaneFrom3Points(Vector3 pointA, Vector3 pointB, Vector3 pointC)
{
Vector3 vector = pointB - pointA;
Vector3 vector2 = pointC - pointA;
Vector3 planeNormal = Vector3.Normalize(Vector3.Cross(vector, vector2));
Vector3 vector3 = pointA + vector / 2f;
Vector3 vector4 = pointA + vector2 / 2f;
Vector3 lineVec = pointC - vector3;
Vector3 lineVec2 = pointB - vector4;
Math3d.ClosestPointsOnTwoLines(vector3, lineVec, vector4, lineVec2, out Vector3 planePoint, out Vector3 vector5);
return(new Face(planePoint, planeNormal));
}
// Token: 0x06001A0D RID: 6669 RVA: 0x000BA974 File Offset: 0x000B8B74
public static bool AreLineSegmentsCrossing(Vector3 pointA1, Vector3 pointA2, Vector3 pointB1, Vector3 pointB2)
{
Vector3 vector = pointA2 - pointA1;
Vector3 vector2 = pointB2 - pointB1;
bool flag = Math3d.ClosestPointsOnTwoLines(pointA1, vector.normalized, pointB1, vector2.normalized, out Vector3 point, out Vector3 point2);
if (flag)
{
int num = Math3d.PointOnWhichSideOfLineSegment(pointA1, pointA2, point);
int num2 = Math3d.PointOnWhichSideOfLineSegment(pointB1, pointB2, point2);
return(num == 0 && num2 == 0);
}
return(false);
}
/// <summary>
/// 线面是否相交
/// </summary>
/// <param name="intersection">交点</param>
/// <param name="linePoint"></param>
/// <param name="lineVec"></param>
/// <param name="face"></param>
/// <returns>是否相交</returns>
public static bool LinePlaneIntersection(Vector3 linePoint, Vector3 lineVec, Face face, out Vector3 intersection)
{
intersection = Vector3.zero;
float num = Vector3.Dot(face.point - linePoint, face.normal);
float num2 = Vector3.Dot(lineVec, face.normal);
if (num2 != 0f)
{
float size = num / num2;
Vector3 b = Math3d.SetVectorLength(lineVec, size);
intersection = linePoint + b;
return(true);
}
return(false);
}
/// <summary>
/// 判断点point是否在矩形内
/// </summary>
public static bool IsPointInRectangle(Vector3 point, Vector3 rectA, Vector3 rectC, Vector3 rectB, Vector3 rectD)
{
Vector3 vector = rectC - rectA;
float size = -(vector.magnitude / 2f);
vector = Math3d.AddVectorLength(vector, size);
Vector3 linePoint = rectA + vector;
Vector3 vector2 = rectB - rectA;
float num = vector2.magnitude / 2f;
Vector3 vector3 = rectD - rectA;
float num2 = vector3.magnitude / 2f;
Vector3 a = Math3d.ProjectPointOnLine(linePoint, vector2.normalized, point);
float magnitude = (a - point).magnitude;
a = Math3d.ProjectPointOnLine(linePoint, vector3.normalized, point);
float magnitude2 = (a - point).magnitude;
return(magnitude2 <= num && magnitude <= num2);
}
/// <summary>
/// 判断线段是否在矩形内
/// </summary>
public static bool IsLineInRectangle(Vector3 linePoint1, Vector3 linePoint2, Vector3 rectA, Vector3 rectB, Vector3 rectC, Vector3 rectD)
{
bool flag = false;
bool flag2 = Math3d.IsPointInRectangle(linePoint1, rectA, rectC, rectB, rectD);
if (!flag2)
{
flag = Math3d.IsPointInRectangle(linePoint2, rectA, rectC, rectB, rectD);
}
if (!flag2 && !flag)
{
bool flag3 = Math3d.AreLineSegmentsCrossing(linePoint1, linePoint2, rectA, rectB);
bool flag4 = Math3d.AreLineSegmentsCrossing(linePoint1, linePoint2, rectB, rectC);
bool flag5 = Math3d.AreLineSegmentsCrossing(linePoint1, linePoint2, rectC, rectD);
bool flag6 = Math3d.AreLineSegmentsCrossing(linePoint1, linePoint2, rectD, rectA);
return(flag3 || flag4 || flag5 || flag6);
}
return(true);
}
/// <summary>
/// 一个点在一条线段上的投影点
/// </summary>
/// <param name="linePoint1"></param>
/// <param name="linePoint2"></param>
/// <param name="point"></param>
/// <returns></returns>
public static Vector3 ProjectPointOnLineSegment(Vector3 linePoint1, Vector3 linePoint2, Vector3 point)
{
Vector3 vector = Math3d.ProjectPointOnLine(linePoint1, (linePoint2 - linePoint1).normalized, point);
int num = Math3d.PointOnWhichSideOfLineSegment(linePoint1, linePoint2, vector);
if (num == 0)
{
return(vector);
}
if (num == 1)
{
return(linePoint1);
}
if (num == 2)
{
return(linePoint2);
}
return(Vector3.zero);
}
/// <summary>
/// 获取贝塞尔曲线(3个点为二次,4个点为三次,其他返回空)
/// </summary>
/// <param name="_points">控制点集</param>
/// <param name="_count">曲线段数</param>
/// <returns></returns>
public static List <Vector3> GetBezierList(Vector3[] _points, int _count = 10)
{
List <Vector3> outList = new List <Vector3>();
if (_points.Length == 3)
{
for (float i = 0; i <= _count; i++)
{
outList.Add(Math3d.GetBezierPoint(i / _count, _points[0], _points[1], _points[2]));
}
}
if (_points.Length == 4)
{
for (float i = 0; i <= _count; i++)
{
outList.Add(Math3d.GetBezierPoint(i / _count, _points[0], _points[1], _points[2], _points[3]));
}
}
return(outList);
}
