namespace Pong.Scripts.Data;
///
/// a record class that represents the game area.
///
public record GameArea
{
///
/// the X coordinate of the GameArea wrapped in a struct that makes operating on it easier. this is divided
/// by 2 in the constructor to represent both sides of the screen by either negative or positive of the number.
///
public GameCoordinate X { get; }
///
/// the Y coordinate of the GameArea wrapped in a struct that makes operating on it easier. this is divided
/// by 2 in the constructor to represent both sides of the screen by either negative or positive of the number.
///
public GameCoordinate Y { get; }
///
/// take a global position inside the game area and normalize it to a value between 0 and 1 which represents the game area.
///
/// a Vector2 containing a global position inside the game area.
public Vector2 NormalizePosition(Vector2 globalPosition)
{
var normalizedX = Mathf.InverseLerp(-X.ByWallSizeExtents, X.ByWallSizeExtents, globalPosition.X);
var normalizedY = Mathf.InverseLerp(-Y.ByWallSizeExtents, Y.ByWallSizeExtents, globalPosition.Y);
return new Vector2(normalizedX, normalizedY);
}
///
/// take a normalized position and convert it back into a globalized position.
///
/// a Vector2 containing a normalized position.
public Vector2 GlobalizePosition(Vector2 normalizedPosition)
{
var globalizedX = Mathf.Lerp(-X.ByWallSizeExtents, X.ByWallSizeExtents, normalizedPosition.X);
var globalizedY = Mathf.Lerp(-Y.ByWallSizeExtents, Y.ByWallSizeExtents, normalizedPosition.Y);
return new Vector2(globalizedX, globalizedY);
}
public GameArea(Vector2 area)
{
X = new GameCoordinate(area.X / 2);
Y = new GameCoordinate(area.Y / 2);
}
}