from project_constants import Terrain


# Assume_cost function assumes colour as an argument (colour that is already given to a tile) and depending
# on what it is returns value of Terrein Enum
# It is used in Tile.cost (giving the value to the tile)

def assume_cost(terrain_type, mine):
    # to allow walking through inactive mines -> and mine.active
    if mine is not None:
        return Terrain.MINE
    if terrain_type == "CONCRETE":
        return Terrain.CONCRETE
    elif terrain_type == "GRASS":
        return Terrain.GRASS
    elif terrain_type == "MUD":
        return Terrain.MUD


class Tile:
    def __init__(self, position, terrain_type=None, mine=None):
        self.position = position
        self.terrain_type = terrain_type
        self._cost = assume_cost(terrain_type, mine)
        # mine is an instance of Mine class
        self.mine = mine

    @property
    def cost(self):
        self._cost = assume_cost(self.terrain_type, self.mine)
        return self._cost

    @cost.setter
    def cost(self, new_value):
        self._cost = new_value