import random
from random import randint


class Field:
    # initialisation
    def __init__(self, pos_hero):
        self.playing_field = ['*', '*', '*', '*', '*'], ['*', '*', '*', '*', '*'], ['*', '*', '*', '*', '*'], ['*', '*', '*', '*', '*'], ['*', '*', '*', '*', '*']
        self.count_of_stone = 7
        self.stones = [randint(0, 4) for j in range(self.count_of_stone * 2)]
        for i in range(7):
            self.playing_field[self.stones[i]][self.stones[i + 1]] = 'S'
        self.playing_field[pos_hero[0]][pos_hero[1]] = 'H'
    # add things on the field

    # respawn stones?

    def print(self):
        for i in range(5):

            for j in range(5):
                if j != 4:
                    print(self.playing_field[i][j], end='')
                else:
                    print(self.playing_field[i][j])


class Hero:

    def __init__(self):
        self.name = 'Artur'
        self.hp = 10
        self.backpack_count = 0
        self.backpack = []
        self.pos = [randint(0, 4), randint(0, 4)]
        self.last_button = ''
        self.field = None

    # def __init__(self):
    #     pass

    # action
    def print_inventory(self):
        for i in range(len(self.backpack)):
            print(self.backpack[i], end='')
        print()

    def change_pos(self, button):
        self.last_button = button
        if (button == 'S' or button == 's') and self.pos[0] + 1 < 6:
            if self.field.playing_field[self.pos[0] + 1][self.pos[1]] == 'S':
                print('If U want take stone, pls press F')
                a = input()
                if a.lower() == 'f':
                    hero.backpack_count += 1
                    hero.backpack.append('Stone')
            self.field.playing_field[self.pos[0]][self.pos[1]] = '*'
            self.pos[0] += 1
            self.field.playing_field[self.pos[0]][self.pos[1]] = 'H'
        if (button == 'W' or button == 'w') and self.pos[0] - 1 > -1:
            if self.field.playing_field[self.pos[0] - 1][self.pos[1]] == 'S':
                print('If U want take stone, pls press F')
                a = input()
                if a.lower() == 'f':
                    hero.backpack_count += 1
                    hero.backpack.append('Stone')
            self.field.playing_field[self.pos[0]][self.pos[1]] = '*'
            self.pos[0] -= 1
            self.field.playing_field[self.pos[0]][self.pos[1]] = 'H'
        if (button == 'D' or button == 'd') and self.pos[1] + 1 < 6:
            if self.field.playing_field[self.pos[0]][self.pos[1] + 1] == 'S':
                print('If U want take stone, pls press F')
                a = input()
                if a.lower() == 'f':
                    hero.backpack_count += 1
                    hero.backpack.append('Stone')
            self.field.playing_field[self.pos[0]][self.pos[1]] = '*'
            self.pos[1] += 1
            self.field.playing_field[self.pos[0]][self.pos[1]] = 'H'
        if (button == 'A' or button == 'a') and self.pos[1] - 1 > -1:
            if self.field.playing_field[self.pos[0]][self.pos[1] - 1] == 'S':
                print('If U want take stone, pls press F')
                a = input()
                if a.lower() == 'f':
                    hero.backpack_count += 1
                    hero.backpack.append('Stone')
            self.field.playing_field[self.pos[0]][self.pos[1]] = '*'
            self.pos[1] -= 1
            self.field.playing_field[self.pos[0]][self.pos[1]] = 'H'

    def drop_stone(self):
        if self.last_button.lower() == 'w' and self.pos[0] - 1 > -1:
            field.playing_field[self.pos[0] - 1][self.pos[1]] = 'S'
            hero.backpack.pop()
            hero.backpack_count -= 1
        elif self.last_button.lower() == 's' and self.pos[0] + 1 < 6:
            field.playing_field[self.pos[0] + 1][self.pos[1]] = 'S'
            hero.backpack.pop()
            hero.backpack_count -= 1
        elif self.last_button.lower() == 'a' and self.pos[1] - 1 > -1:
            field.playing_field[self.pos[0]][self.pos[1] - 1] = 'S'
            hero.backpack.pop()
            hero.backpack_count -= 1
        elif self.last_button.lower() == 'd' and self.pos[1] + 1 < 6:
            field.playing_field[self.pos[0]][self.pos[1] + 1] = 'S'
            hero.backpack.pop()
            hero.backpack_count -= 1


hero = Hero()
field = Field(hero.pos)
field.print()
hero.field = field

while hero.hp > 0:
    print('press one of keys WASD, Q to drop stone, I to check inventory')
    button = str(input())
    if button.lower() == 'i':
        print(hero.backpack)
    if button.lower() == 'q':
        hero.drop_stone()

    if button.lower() == 'w' or button.lower() == 's' or button.lower() == 'a' or button.lower() == 'd':
        hero.change_pos(button)

    if hero.backpack_count > 0 and button.lower() != 'i':
        print('count items in backpack =', hero.backpack_count)
    if button.lower() != 'i':
        field.print()
        print(hero.pos)