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