10.6: The “Map” Data Structure

The map data structure is simply a 2D list of lists where the two indexes used represent the X and Y coordinates of the map. The value at each index in the list of lists is a single-character string that represents the title that is on that map at each space:

• '#' – A wooden wall.
• 'x' – A corner wall.
• '@' – The starting space for the player on this level.
• '.' – A goal space.
• '$' – A space where a star is at the start of the level.
• '+' – A space with a goal and the starting player’s space.
• '*' – A space with a goal and a star at the start of the level.
• ' ' – A grassy outdoor space.
• 'o' – An inside floor space. (This is a lowercase letter O, not a zero.)
• '1' – A rock on grass.
• '2' – A short tree on grass.
• '3' – A tall tree on grass.
• '4' – An ugly tree on grass.