Complete roguelike tutorial using C++ and libtcod - part 2: map and actors

Complete roguelike tutorial using C++ and libtcod ; -originally written by Jice; Text in this tutorial was released under the Creative Commons Attribution-ShareAlike 3.0 Unported and the GNU Free Documentation License (unversioned, with no invariant sections, front-cover texts, or back-cover texts) on 2015-09-21.
	part 1: setting up; part 2: map and actors; part 3: dungeon building; part 4: field of view; part 5: preparing for combat; part 6: going berserk!; part 7: the GUI; part 8: items and inventory; part 9: spells and ranged combat; part 10.1: persistence; part 10.2: game menu; part 11: dungeon levels and character progression; extra 1: about editors and IDE; extra 2: debugging; extra 3: scent tracking; extra 4: makefiles; extra 5: more generic items;

In the first part, we created a "walking @" demo. Let's add a NPC and some walls !

libtcod functions used in this article