本文整理汇总了C#中IVehicle.LocalizePosition方法的典型用法代码示例。如果您正苦于以下问题:C# IVehicle.LocalizePosition方法的具体用法?C# IVehicle.LocalizePosition怎么用?C# IVehicle.LocalizePosition使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IVehicle
的用法示例。
在下文中一共展示了IVehicle.LocalizePosition方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: NextIntersection
// xxx experiment cwr 9-6-02
public float? NextIntersection(IVehicle vehicle)
{
// This routine is based on the Paul Bourke's derivation in:
// Intersection of a Line and a Sphere (or circle)
// http://www.swin.edu.au/astronomy/pbourke/geometry/sphereline/
// find "local center" (lc) of sphere in boid's coordinate space
Vector3 lc = vehicle.LocalizePosition(Center);
// computer line-sphere intersection parameters
float b = -2 * lc.Z;
var totalRadius = Radius + vehicle.Radius;
float c = (lc.X * lc.X) + (lc.Y * lc.Y) + (lc.Z * lc.Z) - (totalRadius * totalRadius);
float d = (b * b) - (4 * c);
// when the path does not intersect the sphere
if (d < 0)
return null;
// otherwise, the path intersects the sphere in two points with
// parametric coordinates of "p" and "q".
// (If "d" is zero the two points are coincident, the path is tangent)
float s = (float)Math.Sqrt(d);
float p = (-b + s) / 2;
float q = (-b - s) / 2;
// both intersections are behind us, so no potential collisions
if ((p < 0) && (q < 0))
return null;
// at least one intersection is in front of us
return
((p > 0) && (q > 0)) ?
// both intersections are in front of us, find nearest one
((p < q) ? p : q) :
// otherwise only one intersections is in front, select it
((p > 0) ? p : q);
}