Complete roguelike tutorial using C++ and libtcod - part 8: items and inventory

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 this article, we will start to add items to the dungeon, in the form of health potions. This will make it possible to kill every monster in the dungeon for the first time, even if the engine won't yet detect the end of game.

libtcod functions used in this article :

TCODConsole::printFrame

TCODSystem::waitForEvent

Actors that can be healed

For the health potion to work, we first need to be able to heal a Destructible. Let's add this. Destructible.hpp :

float heal(float amount);

Destructible.cpp :

float Destructible::heal(float amount) {
   hp += amount;
   if ( hp > maxHp ) {
       amount -= hp-maxHp;
       hp=maxHp;
   }
   return amount;
}

The function returns the amount of health point actually restored.