from cell import Cell
import time

class Maze:
    def __init__(
            self,
            x1,
            y1,
            num_rows,
            num_cols,
            cell_size_x,
            cell_size_y,
            win=None
    ):
        self._cells = []
        self._x1 = x1
        self._y1 = y1
        self._num_rows = num_rows
        self._num_cols = num_cols
        self._cell_size_x = cell_size_x
        self._cell_size_y = cell_size_y
        self._win = win

        self._create_cells()
        self._break_entrance_and_exit()

    def _create_cells(self):
        self._cells = [[Cell(self._win)]*self._num_rows for i in range(self._num_cols)]
        for i in range(self._num_cols):
            for j in range(self._num_rows):
                self._draw_cell(i, j)

    def _draw_cell(self, i, j):
        if self._win is None:
            return
        x1 = self._x1 + i * self._cell_size_x
        y1 = self._y1 + j * self._cell_size_y
        x2 = x1 + self._cell_size_x
        y2 = y1 + self._cell_size_x
        self._cells[i][j].draw(x1, y1, x2, y2)
        self._animate()

    def _animate(self):
        self._win.redraw()
        time.sleep(0.01)

    def _break_entrance_and_exit(self):
        self._cells[0][0].twall = False
        self._draw_cell(0, 0)
        self._cells[-1][-1].bwall = False
        self._draw_cell(self._num_cols-1, self._num_rows-1)