本文整理汇总了C#中System.Numerics.Vector2.Length方法的典型用法代码示例。如果您正苦于以下问题：C# Vector2.Length方法的具体用法？C# Vector2.Length怎么用？C# Vector2.Length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System.Numerics.Vector2的用法示例。
在下文中一共展示了Vector2.Length方法的2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: GetCircleRectangleCollisionNormal
/// <summary>
/// Determines if a circle and rectangle intersect.
/// </summary>
/// <param name="center">The center of the circle.</param>
/// <param name="radius">The radius of the circle.</param>
/// <param name="rectangle">The rectangle.</param>
/// <returns>Returns a <see cref="Vector2" /> representing the normal if a collision occurs; otherwise <c>null</c>.</returns>
public static Vector2? GetCircleRectangleCollisionNormal(Vector2 center, float radius, RectangleF rectangle)
{
var contact = center;
if (contact.X < rectangle.Left) contact.X = rectangle.Left;
if (contact.X > rectangle.Right) contact.X = rectangle.Right;
if (contact.Y < rectangle.Top) contact.Y = rectangle.Top;
if (contact.Y > rectangle.Bottom) contact.Y = rectangle.Bottom;
var v = new Vector2(contact.X - center.X, contact.Y - center.Y);
var length = v.Length();
return length > 0 && length < radius ? v/length : (Vector2?) null;
}示例2: SolveVelocityConstraints
internal override void SolveVelocityConstraints(ref TimeStep step)
{
Body b = _bodyB;
XForm xf1;
b.GetXForm(out xf1);
Vector2 r = MathUtils.Multiply(ref xf1.R, _localAnchor - b.GetLocalCenter());
// Cdot = v + cross(w, r)
Vector2 Cdot = b._linearVelocity + MathUtils.Cross(b._angularVelocity, r);
Vector2 impulse = MathUtils.Multiply(ref _mass, -(Cdot + _beta * _C + _gamma * _impulse));
Vector2 oldImpulse = _impulse;
_impulse += impulse;
float maxImpulse = step.dt * _maxForce;
if (_impulse.LengthSquared() > maxImpulse * maxImpulse)
{
_impulse *= maxImpulse / _impulse.Length();
}
impulse = _impulse - oldImpulse;
b._linearVelocity += b._invMass * impulse;
b._angularVelocity += b._invI * MathUtils.Cross(r, impulse);
}