import pygame
import random
from field import Field

GRID_CELL_PADDING = 3
GRID_CELL_WIDTH = 42
GRID_CELL_HEIGHT = 42
ROWS = 20
COLUMNS = 20


class Grid:
    def __init__(self, textures):
        self.textures = textures
        self.grid = []
        for row in range(ROWS):
            self.grid.append([])
            for _ in range(COLUMNS):
                texture_path, converted_texture = self.get_random_texture()
                field = Field(texture_path, converted_texture)
                self.grid[row].append(field)

    def get_random_texture(self):
        texture_index = random.randint(0, len(self.textures) - 1)
        return self.textures[texture_index]

    def draw(self, screen):
        for row in range(ROWS):
            for column in range(COLUMNS):
                box_rect = [(GRID_CELL_PADDING + GRID_CELL_WIDTH) * column + GRID_CELL_PADDING,
                            (GRID_CELL_PADDING + GRID_CELL_HEIGHT) * row + GRID_CELL_PADDING,
                            GRID_CELL_WIDTH,
                            GRID_CELL_HEIGHT]
                image = self.grid[row][column].converted_texture
                screen.blit(pygame.transform.scale(image, (GRID_CELL_WIDTH, GRID_CELL_HEIGHT)), box_rect)