/// <summary>
/// Writes a 6-byte <see cref="Vector3s"/> value to the data stream in XYZ order. This function
/// expects a Y-up vector.
/// </summary>
/// <param name="binaryWriter">The current <see cref="BinaryWriter"/> object.</param>
/// <param name="vector">The Vector to write.</param>
/// <param name="storeAs">Which axis configuration the read vector should be stored as.</param>
public static void WriteVector3s(this BinaryWriter binaryWriter, Vector3s vector, AxisConfiguration storeAs = AxisConfiguration.ZUp)
{
switch (storeAs)
{
case AxisConfiguration.Native:
{
binaryWriter.Write(vector.X);
binaryWriter.Write(vector.Y);
binaryWriter.Write(vector.Z);
break;
}
case AxisConfiguration.YUp:
{
binaryWriter.Write(vector.X);
binaryWriter.Write(vector.Y);
binaryWriter.Write(vector.Z);
break;
}
case AxisConfiguration.ZUp:
{
binaryWriter.Write(vector.X);
binaryWriter.Write(vector.Z);
binaryWriter.Write((short)(vector.Y * -1));
break;
}
default:
throw new ArgumentOutOfRangeException(nameof(storeAs), storeAs, null);
}
}
/// <summary>
/// Computes the cross product of two vectors, producing a new vector which
/// is orthogonal to the two original vectors.
/// </summary>
/// <param name="start">The start vector.</param>
/// <param name="end">The end vector.</param>
/// <returns>The cross product of the two vectors.</returns>
public static Vector3s Cross(Vector3s start, Vector3s end)
{
short x = (short)(start.Y * end.Z - end.Y * start.Z);
short y = (short)((start.X * end.Z - end.X * start.Z) * -1);
short z = (short)(start.X * end.Y - end.X * start.Y);
var rtnvector = new Vector3s(x, y, z);
return(rtnvector);
}
/// <summary>
/// Computes the dot product of two vectors.
/// </summary>
/// <param name="start">The start vector.</param>
/// <param name="end">The end vector.</param>
/// <returns>The dot product of the two vectors.</returns>
public static short Dot(Vector3s start, Vector3s end)
{
return((short)((start.X * end.X) + (start.Y * end.Y) + (start.Z * end.Z)));
}
/// <summary>
/// Creates a new <see cref="Box"/> object from a top and bottom corner.
/// </summary>
/// <param name="inBottomCorner">The bottom corner of the box.</param>
/// <param name="inTopCorner">The top corner of the box.</param>
/// <returns>A new <see cref="Box"/> object.</returns>
public ShortBox(Vector3s inBottomCorner, Vector3s inTopCorner)
{
this.BottomCorner = inBottomCorner;
this.TopCorner = inTopCorner;
}
