public void RecalculateMatrix(float scale)
{
if (_stack == null)
{
CurrentMatrix = Matrix4x4.Identity;
MatrixDirty = false;
return;
}
Matrix4x4 mat = Matrix4x4.Identity;
for (var i = 0; i < _stack.Count; i++)
{
MatrixWithId matWithId = _stack[i];
if (matWithId.ResetToIdentity)
{
mat = Matrix4x4.Identity;
}
mat *= matWithId.Matrix;
}
// Scale the matrix according to the UI scale.
var scaleMatrix = Matrix4x4.CreateScale(scale, scale, 1f);
CurrentMatrix = scaleMatrix.Inverted() * mat * scaleMatrix;
MatrixDirty = false;
}
private MatrixWithId?Get(string id)
{
if (_stack == null)
{
return(null);
}
for (var i = 0; i < _stack.Count; i++)
{
MatrixWithId matWithId = _stack[i];
if (matWithId.Id == id)
{
return(matWithId);
}
}
return(null);
}
public void AddOrUpdate(string id, Matrix4x4 matrix, bool multiply = true)
{
_stack ??= new List <MatrixWithId>();
MatrixWithId?matWithId = Get(id);
if (matWithId != null)
{
matWithId.Matrix = matrix;
matWithId.ResetToIdentity = !multiply;
}
else
{
matWithId = new MatrixWithId(matrix, id, multiply);
_stack.Add(matWithId);
}
MatrixDirty = true;
}
