/// <summary>
/// Get the projected position of a 3D ray.
/// </summary>
/// <param name="ray">The ray to project.</param>
/// <param name="projectedX">Projected x.</param>
/// <param name="projectedY">Projected y.</param>
/// <param name="distance">Distance of the projected point.</param>
/// <returns>Whether the ray intersected the plane.</returns>
public bool ProjectRay(Ray ray, out int projectedX, out int projectedY, out float?distance)
{
Matrix worldInverseTransform = this.transform.WorldInverseTransform;
ray.Position = Common.Math.Vector3.Transform(ray.Position, worldInverseTransform);
ray.Direction = Common.Math.Vector3.TransformNormal(ray.Direction, worldInverseTransform);
projectedX = 0;
projectedY = 0;
distance = null;
// Ignored negative rays
if (ray.Position.Y > 0)
{
Plane plane = new Plane(Common.Math.Vector3.Up, 0);
distance = ray.Intersects(plane);
// if Intersection exists
if (distance.HasValue)
{
Common.Math.Vector3 target = ray.GetPoint(distance.Value);
if (target.X < 0.5f && target.X > -0.5f &&
target.Z < 0.5f && target.Z > -0.5f)
{
Vector2 coord = new Vector2(target.X + 0.5f, target.Z + 0.5f);
// Scale coord to the size.
projectedX = (int)(coord.X * this.width);
projectedY = (int)(coord.Y * this.height);
return(true);
}
}
}
return(false);
}
/// <summary>
/// Convert a system.numerics vector3 to waveengine vector3
/// </summary>
/// <param name="wave">Wave vector</param>
/// <returns>System numerics vector</returns>
public static System.Numerics.Vector3 ToSystemNumerics(this Common.Math.Vector3 wave)
{
return(new System.Numerics.Vector3(wave.X, wave.Y, wave.Z));
}
/// <summary>
/// Convert a system.numerics vector3 to waveengine vector3
/// </summary>
/// <param name="numerics">Wave vector</param>
/// <param name="result">The result</param>
public static void ToWave(this System.Numerics.Vector3 numerics, out Common.Math.Vector3 result)
{
result.X = numerics.X;
result.Y = numerics.Y;
result.Z = numerics.Z;
}
/// <summary>
/// Convert a waveengine vector3 to system.numerics vector3
/// </summary>
/// <param name="wave">Wave vector</param>
/// <param name="numerics">System numerics vector</param>
public static void ToSystemNumerics(this Common.Math.Vector3 wave, out System.Numerics.Vector3 numerics)
{
numerics.X = wave.X;
numerics.Y = wave.Y;
numerics.Z = wave.Z;
}
