C#•17mo ago

❔ Flip Board not working properly

Hello, I'm working on a level editor for my game. My board is not flipping properly. I've attached a video. Here is my code:

        public void FlipBoard() 
        {
            foreach (var boardObject in _placedObjects)
            {
                if (boardObject.buildable.Category == LevelEditorCategory.BoardTile || boardObject.buildable.Category == LevelEditorCategory.Piece || boardObject.buildable.Category == LevelEditorCategory.ActionTile)
                {
                    var pos = boardObject.Position;
                    var newRotation = new Vector2(pos.x, pos.y);


                    newRotation = newRotation.Rotate(180);
                    newRotation.x += _levelBounds.max.x;
                    newRotation.y += _levelBounds.max.y;
                    



                    boardObject.transform.position = newRotation;
                    boardObject.Position = new Vector2Int((int)newRotation.x, (int)newRotation.y);
                }

            }


            isFlipped = !isFlipped;
        }

        public void FlipBoard() 
        {
            foreach (var boardObject in _placedObjects)
            {
                if (boardObject.buildable.Category == LevelEditorCategory.BoardTile || boardObject.buildable.Category == LevelEditorCategory.Piece || boardObject.buildable.Category == LevelEditorCategory.ActionTile)
                {
                    var pos = boardObject.Position;
                    var newRotation = new Vector2(pos.x, pos.y);


                    newRotation = newRotation.Rotate(180);
                    newRotation.x += _levelBounds.max.x;
                    newRotation.y += _levelBounds.max.y;
                    



                    boardObject.transform.position = newRotation;
                    boardObject.Position = new Vector2Int((int)newRotation.x, (int)newRotation.y);
                }

            }


            isFlipped = !isFlipped;
        }

    public static Vector2 Rotate(this Vector2 v, float degrees)
    {
        return v.RotateRadians(degrees * Mathf.Deg2Rad);
    }

    public static Vector2 RotateRadians(this Vector2 v, float radians)
    {
        var ca = Mathf.Cos(radians);
        var sa = Mathf.Sin(radians);
        return new Vector2(ca * v.x - sa * v.y, sa * v.x + ca * v.y);
    }

    public static Vector2 Rotate(this Vector2 v, float degrees)
    {
        return v.RotateRadians(degrees * Mathf.Deg2Rad);
    }

    public static Vector2 RotateRadians(this Vector2 v, float radians)
    {
        var ca = Mathf.Cos(radians);
        var sa = Mathf.Sin(radians);
        return new Vector2(ca * v.x - sa * v.y, sa * v.x + ca * v.y);
    }

12 Replies

amio•17mo ago

Do you want flipping or rotation, because they're not the same

Velcer•17mo ago

I want flipping. I figured the easiest way was rotation, then offset. The level bounds are demonstrated here

Velcer•17mo ago

amio•17mo ago

Yes, but rotating something is just different. Flipping something along an axis means it's distance from one "edge" is now its distance from the opposite one

Velcer•17mo ago

oh, interesting.

Velcer•17mo ago

Thank you @amio

Velcer•17mo ago

I did not realize the solution was so simple.

                    var pos = boardObject.Position;
                    var distanceToEdge = _levelBounds.max.y - pos.y;

                    pos.y = (int)distanceToEdge;

                    var pos = boardObject.Position;
                    var distanceToEdge = _levelBounds.max.y - pos.y;

                    pos.y = (int)distanceToEdge;

Thank you.

amio•17mo ago

Nice! 🙂 You're welcome

Velcer•17mo ago

@amio I realize just now, that I am trying to make the effect of two people on two sides of the board, and they decide to rotate it. so what I do need is rotation, and not mirroring.

amio•17mo ago

Sounds like 180, so you can just flip it twice, once along each axis

Velcer•17mo ago

ooh Thank you! Got it.

Accord•17mo ago

Looks like nothing has happened here. I will mark this as stale and this post will be archived until there is new activity.

Gaming

Programming

❔ Flip Board not working properly