package two

type graph struct {
	data []string
}

func newGraph() *graph {
	return &graph{}
}

func (g *graph) valueAt(p point) rune {
	return rune(g.data[p.y][p.x])
}

func (g *graph) isOutOfBounds(p point) bool {
	return p.x < 0 || p.y < 0 || p.y >= len(g.data) || p.x >= len(g.data[p.y])
}