Pong/Assets/Scripts/Dimensions.cs

using UnityEngine;

[ExecuteInEditMode]
public class Dimensions : MonoBehaviour {
	[Tooltip("How much height for player panels")]
	public float panelHeightPercentage;
	[Tooltip("How much height is the empty space between board and death zone")]
	public float emptySpacePercentage;
	[Tooltip("Aspect ratio of the playground")]
	public float playGroundAspect;

	public Camera mainCamera;
	public EdgeCollider2D topC, bottomC, leftC, rightC;
	public Transform playGround;

	public static Dimensions Singleton;
	private void OnEnable() {
		Singleton = this;
	}

	public float top, bottom, left, right;
	public float boardTop, boardBottom;

	public float Width => right * 2;
	public float Height => top * 2;
	
	private void Update() {
		float height = mainCamera.orthographicSize * 2;
		float panelHeight = height * panelHeightPercentage / 100f;
		float playGroundHeight = height - 2 * panelHeight;
		float playGroundWidth = playGroundHeight * playGroundAspect;
		float emptySpaceHeight = playGroundHeight * emptySpacePercentage / 100f;

		top = playGroundHeight / 2;
		bottom = -top;
		right = playGroundWidth / 2;
		left = -right;

		boardTop = top - emptySpaceHeight;
		boardBottom = -boardTop;

		Vector2 v1 = new Vector2(left, 0);
		Vector2 v2 = new Vector2(right, 0);
		Vector2 v3 = new Vector2(0, top);
		Vector2 v4 = new Vector2(0, bottom);
		
		topC.transform.position = new Vector2(0, top);
		bottomC.transform.position = new Vector2(0, bottom);
		leftC.transform.position = new Vector2(left, 0);
		rightC.transform.position = new Vector2(right, 0);
		topC.points = new[] {v1, v2};
		bottomC.points = new[] {v1, v2};
		leftC.points = new[] {v3, v4};
		rightC.points = new[] {v3, v4};

		playGround.localScale = new Vector2(playGroundWidth, playGroundHeight);

		// backGround.localPosition = new Vector3();
	}
}