import pygame
import settings


class Instance:
    def __init__(self, tank_capacity, direction):
        size = settings.Field.size
        self.rect = pygame.Rect(0, 0, size(), size())
        self.action = ''
        self.tank_capacity = tank_capacity
        self.direction = direction

    def coordinates(self):
        return {
            'x': self.x(),
            'y': self.y()
        }

    def x(self):
        return int(self.rect.x / settings.Field.size())

    def y(self):
        return int(self.rect.y / settings.Field.size())

    def get_tank_capacity(self):
        return self.tank_capacity

    def set_tank_capacity(self, fuel_units):
        self.tank_capacity = fuel_units

    def move(self):
        key_pressed = pygame.key.get_pressed()
        height = settings.Pygame.height()
        width = settings.Pygame.width()
        tile_size = settings.Field.size()

        if key_pressed[pygame.K_UP] and self.direction == 'west' and self.rect.x > 0:
            self.rect.x -= tile_size
        elif key_pressed[pygame.K_UP] and self.direction == 'east' and self.rect.x < width - tile_size:
            self.rect.x += tile_size
        elif key_pressed[pygame.K_UP] and self.direction == 'north' and self.rect.y > 0:
            self.rect.y -= tile_size
        elif key_pressed[pygame.K_UP] and self.direction == 'south' and self.rect.y < height - tile_size:
            self.rect.y += tile_size
        elif key_pressed[pygame.K_SPACE]:
            return 'open_window'
        return 'none'

    def rotate(self):
        key_pressed = pygame.key.get_pressed()
        if key_pressed[pygame.K_LEFT] and self.direction == 'east':
            self.direction = 'north'
        elif key_pressed[pygame.K_LEFT] and self.direction == 'north':
            self.direction = 'west'
        elif key_pressed[pygame.K_LEFT] and self.direction == 'west':
            self.direction = 'south'
        elif key_pressed[pygame.K_LEFT] and self.direction == 'south':
            self.direction = 'east'
        elif key_pressed[pygame.K_RIGHT] and self.direction == 'north':
            self.direction = 'east'
        elif key_pressed[pygame.K_RIGHT] and self.direction == 'west':
            self.direction = 'north'
        elif key_pressed[pygame.K_RIGHT] and self.direction == 'south':
            self.direction = 'west'
        elif key_pressed[pygame.K_RIGHT] and self.direction == 'east':
            self.direction = 'south'
        return 'none'