samples/13_path_finding_algorithms/05_dijkstra/app/main.rb
def render_background
    render_unvisited
    render_grid_lines
    render_labels
  end
# Draws what the grid looks like with nothing on it
Draws what the grid looks like with nothing on it
Draws what the grid looks like with nothing on it
def render_background
    render_unvisited
    render_grid_lines
    render_labels
  end
def render_background render_unvisited render_grid_lines render_labels end
Draws what the grid looks like with nothing on it
Draws what the grid looks like with nothing on it