def use(self, item_entity, **kwargs):
results = []
item_component = item_entity.item
if item_component.use_function is None:
equippable_component = item_entity.equippable
if equippable_component:
results.append({'equip': item_entity})
else:
results.append({'message': Message('The {0} cannot be used'.format(item_entity.name), libtcod.yellow)})
else:
if item_component.targeting and not (kwargs.get('target_x') or kwargs.get('target_y')):
results.append({'targeting': item_entity})
else:
kwargs = {**item_component.function_kwargs, **kwargs}
item_use_results = item_component.use_function(self.owner, **kwargs)
for item_use_result in item_use_results:
if item_use_result.get('consumed'):
self.remove_item(item_entity)
results.extend(item_use_results)
return results
def add_item(self, item):
results = []
if len(self.items) >= self.capacity:
results.append({
'item_added': None,
'message': Message('You cannot carry any more, your inventory is full', libtcod.yellow)
})
else:
results.append({
'item_added': item,
'message': Message('You pick up the {0}!'.format(item.name), libtcod.blue)
})
self.items.append(item)
return results
def cast_confuse(*args, **kwargs):
entities = kwargs.get('entities')
fov_map = kwargs.get('fov_map')
target_x = kwargs.get('target_x')
target_y = kwargs.get('target_y')
results = []
if not libtcod.map_is_in_fov(fov_map, target_x, target_y):
results.append({
'consumed':
False,
'message':
Message('You cannot target a tile outside your field of view.',
libtcod.yellow)
})
return results
for entity in entities:
if entity.x == target_x and entity.y == target_y and entity.ai:
confused_ai = ConfusedMonster(entity.ai, 10)
confused_ai.owner = entity
entity.ai = confused_ai
results.append({
'consumed':
True,
'message':
Message(
'The eyes of the {0} look vacant, as he starts to stumble around!'
.format(entity.name), libtcod.light_green)
})
break
else:
results.append({
'consumed':
False,
'message':
Message('There is no targetable enemy at that location.',
libtcod.yellow)
})
return results
def cast_lightning(*args, **kwargs):
caster = args[0]
entities = kwargs.get('entities')
fov_map = kwargs.get('fov_map')
damage = kwargs.get('damage')
maximum_range = kwargs.get('maximum_range')
results = []
target = None
closest_distance = maximum_range + 1
for entity in entities:
if entity.fighter and entity != caster and libtcod.map_is_in_fov(
fov_map, entity.x, entity.y):
distance = caster.distance_to(entity)
if distance < closest_distance:
target = entity
closest_distance = distance
if target:
results.append({
'consumed':
True,
'target':
target,
'message':
Message(
'A lighting bolt strikes the {0} with a loud thunder! The damage is {1}'
.format(target.name, damage))
})
results.extend(target.fighter.take_damage(damage))
else:
results.append({
'consumed':
False,
'target':
None,
'message':
Message('No enemy is close enough to strike.', libtcod.red)
})
return results
def cast_fireball(*args, **kwargs):
entities = kwargs.get('entities')
fov_map = kwargs.get('fov_map')
damage = kwargs.get('damage')
radius = kwargs.get('radius')
target_x = kwargs.get('target_x')
target_y = kwargs.get('target_y')
results = []
if not libtcod.map_is_in_fov(fov_map, target_x, target_y):
results.append({
'consumed':
False,
'message':
Message('You cannot target a tile outside your field of view.',
libtcod.yellow)
})
return results
results.append({
'consumed':
True,
'message':
Message(
'The fireball explodes, burning everything within {0} tiles!'.
format(radius), libtcod.orange)
})
for entity in entities:
if entity.distance(target_x, target_y) <= radius and entity.fighter:
results.append({
'message':
Message(
'The {0} gets burned for {1} hit points.'.format(
entity.name, damage), libtcod.orange)
})
results.extend(entity.fighter.take_damage(damage))
return results
def kill_monster(monster):
death_message = '{0} is dead!'.format(monster.name.capitalize())
monster.char = '%'
monster.color = libtcod.dark_red
monster.blocks = False
monster.fighter = None
monster.ai = None
monster.render_order = RenderOrder.CORPSE
death_message = Message('{0} is dead!'.format(monster.name.capitalize()),
libtcod.orange)
return death_message
def drop_item(self, item):
results = []
if self.owner.equipment.main_hand == item or self.owner.equipment.off_hand == item:
self.owner.equipment.toggle_equip(item)
item.x = self.owner.x
item.y = self.owner.y
self.remove_item(item)
results.append({'item_dropped': item, 'message': Message('You dropped the {0}'.format(item.name),
libtcod.yellow)})
return results
def heal(*args, **kwargs):
entity = args[0]
amount = kwargs.get('amount')
results = []
if entity.fighter.hp == entity.fighter.max_hp:
results.append({
'consumed':
False,
'message':
Message('You are already at full health', libtcod.yellow)
})
else:
entity.fighter.heal(amount)
results.append({
'consumed':
True,
'message':
Message('Your wounds start to feel better!', libtcod.green)
})
return results
def attack(self, target):
results = []
damage = self.power - target.fighter.defense
if damage > 0:
results.append({
'message':
Message(
'{0} attacks {1} for {2} hit points.'.format(
self.owner.name.capitalize(), target.name,
str(damage)), libtcod.white)
})
results.extend(target.fighter.take_damage(damage))
else:
results.append({
'message':
Message(
'{0} attacks {1} but does no damage.'.format(
self.owner.name.capitalize(), target.name),
libtcod.white)
})
return results
def take_turn(self, target, fov_map, game_map, entities):
results = []
if self.number_of_turns > 0:
random_x = self.owner.x + randint(0, 2) - 1
random_y = self.owner.y + randint(0, 2) - 1
if random_x != self.owner.x and random_y != self.owner.y:
self.owner.move_towards(random_x, random_y, game_map, entities)
self.number_of_turns -= 1
else:
self.owner.ai = self.previous_ai
results.append({'message': Message('The {0} is no longer confused!'.format(self.owner.name), libtcod.red)})
return results
def next_floor(self, player, message_log, constants):
self.dungeon_level += 1
entities = [player]
self.tiles = self.initialize_tiles()
self.make_map(constants['max_rooms'], constants['room_min_size'],
constants['room_max_size'], constants['map_width'],
constants['map_height'], player, entities)
player.fighter.heal(player.fighter.max_hp // 2)
message_log.add_message(
Message('You take a moment to rest, and recover your strength.',
libtcod.light_violet))
return entities
def place_entities(self, room, entities):
max_monsters_per_room = from_dungeon_level([[2, 1], [3, 4], [5, 6]],
self.dungeon_level)
max_items_per_room = from_dungeon_level([[1, 1], [2, 4]],
self.dungeon_level)
# Get a random number of monsters
number_of_monsters = randint(0, max_monsters_per_room)
# Get a random number of items
number_of_items = randint(0, max_items_per_room)
monster_chances = {
'orc':
40,
'troll':
from_dungeon_level([[5, 0], [40, 1], [70, 2]], self.dungeon_level),
'skeleton':
from_dungeon_level([[55, 0], [40, 1], [20, 2]], self.dungeon_level)
}
item_chances = {
'healing_potion': 35,
'sword': from_dungeon_level([[5, 4]], self.dungeon_level),
'shield': from_dungeon_level([[15, 8]], self.dungeon_level),
'lightning_scroll': from_dungeon_level([[25, 4]],
self.dungeon_level),
'fireball_scroll': from_dungeon_level([[25, 6]],
self.dungeon_level),
'confusion_scroll': from_dungeon_level([[10, 2]],
self.dungeon_level)
}
for i in range(number_of_monsters):
# Choose a random location in the room
x = randint(room.x1 + 1, room.x2 - 1)
y = randint(room.y1 + 1, room.y2 - 1)
# Check if an entity is already in that location
if not any([
entity
for entity in entities if entity.x == x and entity.y == y
]):
monster_choice = random_choice_from_dict(monster_chances)
if monster_choice == 'orc':
fighter_component = Fighter(hp=20,
defense=1,
power=4,
xp=25)
ai_component = BasicMonster()
monster = Entity(x,
y,
'o',
libtcod.desaturated_green,
'Orc',
blocks=True,
render_order=RenderOrder.ACTOR,
fighter=fighter_component,
ai=ai_component)
elif monster_choice == 'troll':
fighter_component = Fighter(hp=25,
defense=2,
power=6,
xp=95)
ai_component = BasicMonster()
monster = Entity(x,
y,
'T',
libtcod.darker_green,
'Troll',
blocks=True,
fighter=fighter_component,
render_order=RenderOrder.ACTOR,
ai=ai_component)
else:
fighter_component = Fighter(hp=10,
defense=0,
power=2,
xp=15)
ai_component = BasicMonster()
monster = Entity(x,
y,
's',
libtcod.white,
'Skeleton',
blocks=True,
fighter=fighter_component,
render_order=RenderOrder.ACTOR,
ai=ai_component)
entities.append(monster)
for i in range(number_of_items):
x = randint(room.x1 + 1, room.x2 - 1)
y = randint(room.y1 + 1, room.y2 - 1)
if not any([
entity
for entity in entities if entity.x == x and entity.y == y
]):
item_choice = random_choice_from_dict(item_chances)
if item_choice == 'healing_potion':
item_component = Item(use_function=heal, amount=40)
item = Entity(x,
y,
'!',
libtcod.violet,
'Healing Potion',
render_order=RenderOrder.ITEM,
item=item_component)
elif item_choice == 'sword':
equippable_component = Equippable(EquipmentSlots.MAIN_HAND,
power_bonus=3)
item = Entity(x,
y,
'/',
libtcod.sky,
'Sword',
equippable=equippable_component)
elif item_choice == 'shield':
equippable_component = Equippable(EquipmentSlots.OFF_HAND,
defense_bonus=1)
item = Entity(x,
y,
'[',
libtcod.darker_orange,
'Shield',
equippable=equippable_component)
elif item_choice == 'fireball_scroll':
item_component = Item(
use_function=cast_fireball,
targeting=True,
targeting_message=Message(
'Left-click a target tile for the fireball, or right-click to cancel.',
libtcod.light_cyan),
damage=25,
radius=3)
item = Entity(x,
y,
'#',
libtcod.red,
'Fireball Scroll',
render_order=RenderOrder.ITEM,
item=item_component)
elif item_choice == 'confusion_scroll':
item_component = Item(
use_function=cast_confuse,
targeting=True,
targeting_message=Message(
'Left-click an enemy to confuse it, or right-click to cancel.',
libtcod.light_cyan))
item = Entity(x,
y,
'#',
libtcod.light_pink,
'Confusion Scroll',
render_order=RenderOrder.ITEM,
item=item_component)
else:
item_component = Item(use_function=cast_lightning,
damage=40,
maximum_range=5)
item = Entity(x,
y,
'#',
libtcod.yellow,
'Lightning Scroll',
render_order=RenderOrder.ITEM,
item=item_component)
entities.append(item)
def play_game(player, entities, game_map, message_log, game_state, con, panel, constants):
fov_recompute = True
fov_map = initialize_fov(game_map)
key = libtcod.Key()
mouse = libtcod.Mouse()
game_state = GameStates.PLAYERS_TURN
previous_game_state = game_state
targeting_item = None
while not libtcod.console_is_window_closed():
libtcod.sys_check_for_event(libtcod.EVENT_KEY_PRESS | libtcod.EVENT_MOUSE, key, mouse)
if fov_recompute:
recompute_fov(fov_map, player.x, player.y, constants['fov_radius'], constants['fov_light_walls'],
constants['fov_algorithm'])
render_all(con, panel, entities, player, game_map, fov_map, fov_recompute, message_log,
constants['screen_width'], constants['screen_height'], constants['bar_width'],
constants['panel_height'], constants['panel_y'], mouse, constants['colors'], game_state)
fov_recompute = False
libtcod.console_flush()
clear_all(con, entities)
action = handle_keys(key, game_state)
mouse_action = handle_mouse(mouse)
move = action.get('move')
wait = action.get('wait')
pickup = action.get('pickup')
show_inventory = action.get('show_inventory')
drop_inventory = action.get('drop_inventory')
inventory_index = action.get('inventory_index')
take_stairs = action.get('take_stairs')
level_up = action.get('level_up')
show_character_screen = action.get('show_character_screen')
exit = action.get('exit')
fullscreen = action.get('fullscreen')
left_click = mouse_action.get('left_click')
right_click = mouse_action.get('right_click')
player_turn_results = []
if move and game_state == GameStates.PLAYERS_TURN:
dx, dy = move
destination_x = player.x + dx
destination_y = player.y + dy
if not game_map.is_blocked(destination_x, destination_y):
target = get_blocking_entities_at_location(entities, destination_x, destination_y)
if target:
attack_results = player.fighter.attack(target)
player_turn_results.extend(attack_results)
else:
player.move(dx, dy)
fov_recompute = True
game_state = GameStates.ENEMY_TURN
elif wait:
game_state = GameStates.ENEMY_TURN
elif pickup and game_state == GameStates.PLAYERS_TURN:
for entity in entities:
if entity.item and entity.x == player.x and entity.y == player.y:
pickup_results = player.inventory.add_item(entity)
player_turn_results.extend(pickup_results)
break
else:
message_log.add_message(Message('There is nothing here to pick up.', libtcod.yellow))
if show_inventory:
previous_game_state = game_state
game_state = GameStates.SHOW_INVENTORY
if drop_inventory:
previous_game_state = game_state
game_state = GameStates.DROP_INVENTORY
if inventory_index is not None and previous_game_state != GameStates.PLAYER_DEAD and inventory_index < len(
player.inventory.items):
item = player.inventory.items[inventory_index]
if game_state == GameStates.SHOW_INVENTORY:
player_turn_results.extend(player.inventory.use(item, entities=entities, fov_map=fov_map))
elif game_state == GameStates.DROP_INVENTORY:
player_turn_results.extend(player.inventory.drop_item(item))
if take_stairs and game_state == GameStates.PLAYERS_TURN:
for entity in entities:
if entity.stairs and entity.x == player.x and entity.y == player.y:
entities = game_map.next_floor(player, message_log, constants)
fov_map = initialize_fov(game_map)
fov_recompute = True
libtcod.console_clear(con)
break
else:
message_log.add_message(Message('There are no stairs here.', libtcod.yellow))
if level_up:
if level_up == 'hp':
player.fighter.base_max_hp += 20
player.fighter.hp += 20
elif level_up == 'str':
player.fighter.base_power += 1
elif level_up == 'def':
player.fighter.base_defense += 1
game_state = previous_game_state
if show_character_screen:
previous_game_state = game_state
game_state = GameStates.CHARACTER_SCREEN
if game_state == GameStates.TARGETING:
if left_click:
target_x, target_y = left_click
item_use_results = player.inventory.use(targeting_item, entities=entities, fov_map=fov_map,
target_x=target_x, target_y=target_y)
player_turn_results.extend(item_use_results)
elif right_click:
player_turn_results.append({'targeting_cancelled': True})
if exit:
if game_state in (GameStates.SHOW_INVENTORY, GameStates.DROP_INVENTORY, GameStates.CHARACTER_SCREEN):
game_state = previous_game_state
elif game_state == GameStates.TARGETING:
player_turn_results.append({'targeting_cancelled': True})
else:
save_game(player, entities, game_map, message_log, game_state)
return True
if fullscreen:
libtcod.console_set_fullscreen(not libtcod.console_is_fullscreen())
for player_turn_result in player_turn_results:
message = player_turn_result.get('message')
dead_entity = player_turn_result.get('dead')
item_added = player_turn_result.get('item_added')
item_consumed = player_turn_result.get('consumed')
item_dropped = player_turn_result.get('item_dropped')
equip = player_turn_result.get('equip')
targeting = player_turn_result.get('targeting')
targeting_cancelled = player_turn_result.get('targeting_cancelled')
xp = player_turn_result.get('xp')
if message:
message_log.add_message(message)
if dead_entity:
if dead_entity == player:
message, game_state = kill_player(dead_entity)
else:
message = kill_monster(dead_entity)
message_log.add_message(message)
if item_added:
entities.remove(item_added)
game_state = GameStates.ENEMY_TURN
if item_consumed:
game_state = GameStates.ENEMY_TURN
if item_dropped:
entities.append(item_dropped)
game_state = GameStates.ENEMY_TURN
if equip:
equip_results = player.equipment.toggle_equip(equip)
for equip_result in equip_results:
equipped = equip_result.get('equipped')
dequipped = equip_result.get('dequipped')
if equipped:
message_log.add_message(Message('You equipped the {0}'.format(equipped.name)))
if dequipped:
message_log.add_message(Message('You dequipped the {0}'.format(dequipped.name)))
game_state = GameStates.ENEMY_TURN
if targeting:
previous_game_state = GameStates.PLAYERS_TURN
game_state = GameStates.TARGETING
targeting_item = targeting
message_log.add_message(targeting_item.item.targeting_message)
if targeting_cancelled:
game_state = previous_game_state
message_log.add_message(Message('Targeting cancelled'))
if xp:
leveled_up = player.level.add_xp(xp)
message_log.add_message(Message('You gain {0} experience points.'.format(xp)))
if leveled_up:
previous_game_state = game_state
game_state = GameStates.LEVEL_UP
if game_state == GameStates.ENEMY_TURN:
for entity in entities:
if entity.ai:
enemy_turn_results = entity.ai.take_turn(player, fov_map, game_map, entities)
for enemy_turn_result in enemy_turn_results:
message = enemy_turn_result.get('message')
dead_entity = enemy_turn_result.get('dead')
if message:
message_log.add_message(message)
if dead_entity:
if dead_entity == player:
message, game_state = kill_player(dead_entity)
else:
message = kill_monster(dead_entity)
message_log.add_message(message)
if game_state == GameStates.PLAYER_DEAD:
break
if game_state == GameStates.PLAYER_DEAD:
break
else:
game_state = GameStates.PLAYERS_TURN
def kill_player(player):
player.char = '%'
player.color = libtcod.dark_red
return Message('You died!', libtcod.red), GameStates.PLAYER_DEAD