maze

type Maze[T constraints.Integer] struct {
	Grid          [][]T      // 0: path, 1: wall
	Visited       [][]bool   // visited cells for DFS
	Rnd           *rand.Rand // random number generator
	CellSize      int        // path width in pixels
	WallThickness int        // wall thickness in pixels
	Cols          int        // number of maze cells (width)
	Rows          int        // number of maze cells (height)
}