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Pyromuffin/integer basis.cs

Created July 10, 2018 07:55
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integer basis.cs
Matrix4x4 mat;
mat = Matrix4x4.Translate(new Vector3(centerPoint.x, centerPoint.y));
mat *= Matrix4x4.Rotate(Quaternion.AngleAxis(degrees, Vector3.forward));
mat *= Matrix4x4.Translate(new Vector3(-centerPoint.x, -centerPoint.y));
IntegerBasis basis;
basis.right = new Vector2Int( Mathf.RoundToInt(mat.m00 * BIG_NUMBER), Mathf.RoundToInt(mat.m01 * BIG_NUMBER));
basis.up = new Vector2Int( Mathf.RoundToInt(mat.m10 * BIG_NUMBER), Mathf.RoundToInt(mat.m11 * BIG_NUMBER));
basis.offset = new Vector2Int( Mathf.RoundToInt(mat.m03 * BIG_NUMBER), Mathf.RoundToInt(mat.m13 * BIG_NUMBER));
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