#include "maze.h"

void Maze::pushNextCell(int row, int col){
	if (store[row][col+1] == passage || store[row][col+1] == exitMarker){
		mazeStack.push(Cell(row,col+1));
		mazeStack2.push(Cell(row,col+1));
		return;
	}
	if (store[row][col-1] == passage || store[row][col-1] == exitMarker){
		mazeStack.push(Cell(row,col-1));
		mazeStack2.push(Cell(row,col-1));
		return;
	}
	if (store[row+1][col] == passage || store[row+1][col] == exitMarker){
		mazeStack.push(Cell(row+1,col));
		mazeStack2.push(Cell(row+1,col));
		return;
	}
	if (store[row-1][col] == passage || store[row-1][col] == exitMarker){
		mazeStack.push(Cell(row-1,col));
		mazeStack2.push(Cell(row-1,col));
		return;
	}
    mazeStack.push(Cell(-1,-1));

}


void Maze::pushUnvisited(int row, int col) {
    if (store[row][col] == passage || store[row][col] == exitMarker) {
        mazeStack.push(Cell(row,col));
    }
}

void Maze::exitMaze() {
    Cell backtrack(-1,-1);
	int row, col;
    currentCell = entryCell;
    while (!(currentCell == exitCell)) {
        row = currentCell.row;
        col = currentCell.col;
        cout << *this;         // print a snapshot;
        if (!(currentCell == entryCell))
            store[row][col] = visited;
        pushNextCell(row,col);
        if (mazeStack.empty()) {
             cout << *this;
             cout << "Failure\n";
             return;
        }
        else currentCell = mazeStack.pop();
		if(currentCell==backtrack)
			currentCell= mazeStack2.pop();
    }
	cout << *this;
	while(!mazeStack2.empty()){
		Cell tmp = mazeStack2.pop();
		cout << '[' << tmp.row << ',' << tmp.col << ']' << ' ';
	}
	cout << '\n';
    cout << "Success\n";
}