public static GsVector ComputeProjectileDirection(float angle)
{
GsVector v = new GsVector(1, 0);
GsMatrix rotMatrix = GsMatrix.CreateRotationZ(angle);
return(GsVector.Transform(v, rotMatrix));
}
/// <summary></summary>
protected virtual GsVector GetCenter(GsVector offset)
{
// get the drawing data
ImageParams data = GetTextureDrawData(offset);
// get the center of the image
GsVector center = data.ImageSize.ToVector() / 2f;
// compute the transform
GsMatrix transform = CreateTransform(data);
// return the center transformated
return(GsVector.Transform(center, transform));
}