//------------------------------------------------------------------------------------------------------------------------
// DistanceTo()
//------------------------------------------------------------------------------------------------------------------------
/// <summary>
/// Returns the distance to another Transformable
/// </summary>
public float DistanceTo(Transformable other)
{
float dx = other.x - x;
float dy = other.y - y;
return(Mathf.Sqrt(dx * dx + dy * dy));
}
/// <summary>
/// Creates a render window in the rectangle given by x,y,width,height.
/// The camera determines the focal point, rotation and scale of this window.
/// </summary>
public Window(int x, int y, int width, int height, GameObject camera)
{
_windowX = x;
_windowY = y;
_width = width;
_height = height;
this.camera = camera;
window = new Transformable();
}
/// <summary>
/// Returns the inverse matrix transformation, if it exists.
/// (Use this e.g. for cameras used by sub windows)
/// </summary>
public Transformable Inverse() {
Transformable inv=new Transformable();
if (scaleX == 0 || scaleY == 0)
throw new Exception ("Cannot invert a transform with scale 0");
float cs = _matrix [0];
float sn = _matrix [1];
inv._matrix [0] = cs / scaleX;
inv._matrix [1] = -sn / scaleY;
inv._matrix [4] = sn / scaleX;
inv._matrix [5] = cs / scaleY;
inv.x = (-x * cs - y * sn) / scaleX;
inv.y = (x * sn - y * cs) / scaleY;
return inv;
}
//------------------------------------------------------------------------------------------------------------------------
// DistanceTo()
//------------------------------------------------------------------------------------------------------------------------
/// <summary>
/// Returns the distance to another Transformable
/// </summary>
public float DistanceTo(Transformable other)
{
float dx = other.x - x;
float dy = other.y - y;
return Mathf.Sqrt(dx * dx + dy * dy);
}
