fov_functions.py

'''
Copyright (C) 2018 Stefano Peris <xenonlab.develop@gmail.com>

Github repository: <https://github.com/XenonLab-Studio/The_Dungeon_of_Sin.git>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
'''


import libtcodpy as libtcod


def initialize_fov(game_map):
    fov_map = libtcod.map_new(game_map.width, game_map.height)

    for y in range(game_map.height):
        for x in range(game_map.width):
            libtcod.map_set_properties(fov_map, x, y, not game_map.tiles[x][y].block_sight,
                                       not game_map.tiles[x][y].blocked)

    return fov_map


def recompute_fov(fov_map, x, y, radius, light_walls=True, algorithm=0):
    libtcod.map_compute_fov(fov_map, x, y, radius, light_walls, algorithm)