/// <summary>
/// 检查这个平面是否与指定包围盒相交
/// </summary>
/// <param name="box">指定的包围盒</param>
/// <param name="result">[输出属性] 表明关系的枚举类型</param>
public void Intersects(ref BoundingBox box, out PlaneIntersectionStatus result)
{
Vector3 vector;
Vector3 vector2;
vector2.X = (this.Normal.X >= 0f) ? box.Min.X : box.Max.X;
vector2.Y = (this.Normal.Y >= 0f) ? box.Min.Y : box.Max.Y;
vector2.Z = (this.Normal.Z >= 0f) ? box.Min.Z : box.Max.Z;
vector.X = (this.Normal.X >= 0f) ? box.Max.X : box.Min.X;
vector.Y = (this.Normal.Y >= 0f) ? box.Max.Y : box.Min.Y;
vector.Z = (this.Normal.Z >= 0f) ? box.Max.Z : box.Min.Z;
float num = ((this.Normal.X * vector2.X) + (this.Normal.Y * vector2.Y)) + (this.Normal.Z * vector2.Z);
if ((num + this.D) > 0f)
{
result = PlaneIntersectionStatus.Front;
}
else
{
num = ((this.Normal.X * vector.X) + (this.Normal.Y * vector.Y)) + (this.Normal.Z * vector.Z);
if ((num + this.D) < 0f)
{
result = PlaneIntersectionStatus.Back;
}
else
{
result = PlaneIntersectionStatus.Intersecting;
}
}
}
/// <summary>
/// 检查当前包围盒是否与指定平面相交
/// </summary>
/// <param name="plane">指定的平面</param>
/// <param name="result">[输出属性] 枚举类型表明包围盒与平面是否相交</param>
public void Intersects(ref Plane plane, out PlaneIntersectionStatus result)
{
Vector3 vector;
Vector3 vector2;
vector2.X = (plane.Normal.X >= 0f) ? this.Min.X : this.Max.X;
vector2.Y = (plane.Normal.Y >= 0f) ? this.Min.Y : this.Max.Y;
vector2.Z = (plane.Normal.Z >= 0f) ? this.Min.Z : this.Max.Z;
vector.X = (plane.Normal.X >= 0f) ? this.Max.X : this.Min.X;
vector.Y = (plane.Normal.Y >= 0f) ? this.Max.Y : this.Min.Y;
vector.Z = (plane.Normal.Z >= 0f) ? this.Max.Z : this.Min.Z;
float num = ((plane.Normal.X * vector2.X) + (plane.Normal.Y * vector2.Y)) + (plane.Normal.Z * vector2.Z);
if ((num + plane.D) > 0f)
{
result = PlaneIntersectionStatus.Front;
}
else
{
num = ((plane.Normal.X * vector.X) + (plane.Normal.Y * vector.Y)) + (plane.Normal.Z * vector.Z);
if ((num + plane.D) < 0f)
{
result = PlaneIntersectionStatus.Back;
}
else
{
result = PlaneIntersectionStatus.Intersecting;
}
}
}
/// <summary>
/// 检查这个平面是否与指定包围球相交
/// </summary>
/// <param name="sphere">指定的包围球</param>
/// <param name="result">表明关系的枚举类型</param>
public void Intersects(ref BoundingSphere sphere, out PlaneIntersectionStatus result)
{
float num2 = ((sphere.Center.X * this.Normal.X) + (sphere.Center.Y * this.Normal.Y)) + (sphere.Center.Z * this.Normal.Z);
float num = num2 + this.D;
if (num > sphere.Radius)
{
result = PlaneIntersectionStatus.Front;
}
else if (num < -sphere.Radius)
{
result = PlaneIntersectionStatus.Back;
}
else
{
result = PlaneIntersectionStatus.Intersecting;
}
}
/// <summary>
/// 检测当前平截头体是否与指定的平面相交
/// </summary>
/// <param name="box">要检测的平面</param>
/// <param name="result">[输出参数] 指示是否相交的枚举</param>
public void Intersects(ref Plane plane, out PlaneIntersectionStatus result)
{
int num = 0;
for (int i = 0; i < 8; i++)
{
float num3;
Vector3.Dot(ref this.cornerArray[i], ref plane.Normal, out num3);
if ((num3 + plane.D) > 0f)
{
num |= 1;
}
else
{
num |= 2;
}
if (num == 3)
{
result = PlaneIntersectionStatus.Intersecting;
return;
}
}
result = (num == 1) ? PlaneIntersectionStatus.Front : PlaneIntersectionStatus.Back;
}
/// <summary>
/// 检查当前包围球是否与指定平面相交
/// </summary>
/// <param name="plane">指定平面</param>
/// <param name="result">[输出属性] 表明关系的枚举类型</param>
public void Intersects(ref Plane plane, out PlaneIntersectionStatus result)
{
plane.Intersects(ref this, out result);
}
