def display_menu(self, header, options, width, con, override_height=None, option_char=True):
if len(options) > 26:
raise ValueError("Cannot have a menu with more than 26 options.")
# calculate total height for the header (after auto-wrap) and one line per option
header_height = libtcod.console_get_height_rect(con, 0, 0, width, MapConstants.SCREEN_HEIGHT, header)
if header == "":
header_height = 0
height = len(options) + header_height + override_height
if override_height:
height = override_height
# create an off-screen console that represents the menu's window
window = libtcod.console_new(width, height)
# print the header, with auto-wrap
libtcod.console_set_default_foreground(window, libtcod.white)
libtcod.console_print_rect_ex(window, 0, 0, width, height, libtcod.BKGND_NONE, libtcod.LEFT, header)
# print all the options
y = header_height
letter_index = ord("a")
for option_text in options:
if option_char:
text = "(" + chr(letter_index) + ") " + str(option_text)
else:
text = str(option_text)
libtcod.console_print_ex(window, 0, y, libtcod.BKGND_NONE, libtcod.LEFT, text)
y += 1
letter_index += 1
# blit the contents of "window" to the root console
x = MapConstants.SCREEN_WIDTH / 2 - width / 2
y = MapConstants.SCREEN_HEIGHT / 2 - height / 2
libtcod.console_blit(window, 0, 0, width, height, 0, x, y, 1.0, 1.0)
# present the root console to the player and wait for a key-press
libtcod.console_flush()
key = libtcod.console_wait_for_keypress(True)
if key.vk == libtcod.KEY_ENTER and key.lalt: # (special case) Alt+Enter: toggle fullscreen
libtcod.console_set_fullscreen(not libtcod.console_is_fullscreen())
# convert the ASCII code to an index; if it corresponds to an option, return it
index = key.c - ord("a")
if index >= 0 and index < len(options):
return index
return None
def handle_keys(state):
key = Input.wait_for_keypress(state)
while key.vk == libtcod.KEY_SHIFT:
key = Input.wait_for_keypress(state)
if key.vk == libtcod.KEY_ENTER and key.lalt: # Toggle fullscreen
libtcod.console_set_fullscreen(not libtcod.console_is_fullscreen())
elif key.vk == libtcod.KEY_ESCAPE:
state.set_player_action(Constants.EXIT)
game_state = state.get_game_state()
if game_state == Constants.PLAYING:
Input.handle_playing_keys(key, state)
elif game_state == Constants.TARGETING:
Input.handle_targeting_keys(key, state)
elif game_state == Constants.FOUND_TARGET:
state.set_game_state(Constants.FOUND_TARGET)
if state.get_player_action() == Constants.DID_NOT_TAKE_TURN:
state.set_player_action(None)
elif state.get_player_action() == Constants.NOT_VALID_KEY:
state.set_player_action(Constants.DID_NOT_TAKE_TURN)