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#include <iostream>
using std::cout;
using std::endl;
using std::cin;
#include <cstdlib>
using std::srand;
using std::rand;
#include <algorithm>
using std::random_shuffle;
#include <ctime>
using std::time;
void generateMaze(int **, int, int, int, int);
void printMaze(int **, int, int);
int main()
{
srand(time(0));
int **maze;
maze = new int*[50];
for (int i = 0; i < 50; i++)
maze[i] = new int[50];
int width, height;
cout << "Enter height:";
cin >> height;
cout << "Enter width: ";
cin >> width;
//Initialise all array to 1 (WALLS)
for (int i = 0; i < height; i++)
for (int j = 0; j < width; j++)
maze[i][j] = 1;
int randX, randY;
//Generate odd starting position for algorithm
do
{
randX = 1 + rand() % width - 1;
randY = 1 + rand() % height - 1;
} while ((randX % 2 == 0) && (randY % 2 == 0));
maze[randX][randY] = 0;
generateMaze(maze, randX, randY, width, height);
printMaze(maze, width, height);
cin.ignore(255, '\n');
cin.get();
return 0;
}
//Print maze
void printMaze(int **maze, int width, int height)
{
for (int i = 0; i < height; i++)
{
for (int j = 0; j < width; j++)
cout << maze[i][j];
cout << endl;
}
cout << endl;
}
void generateMaze(int **maze, int x, int y, int wSize, int hSize)
{
//Generate random directions array
int dirs[4] = { 1, 2, 3, 4 };
random_shuffle(&dirs[0], &dirs[3]);
//Check and follow directions
for (int i = 0; i < 4; i++)
{
switch (dirs[i])
{
case 1://Up
if (x - 2 <= 0)
break;
if (x - 2 != 0)
{
maze[x - 2][y] = 0;
maze[x - 1][y] = 0;
generateMaze(maze, x - 2, y, wSize, hSize);
}
break;
case 2://Right
if (y + 2 >= wSize - 1)
break;
if (y + 2 != 0)
{
maze[x][y + 2] = 0;
maze[x][y + 1] = 0;
generateMaze(maze, x, y + 2, wSize, hSize);
}
break;
case 3://Down
if (x + 2 >= hSize - 1)
break;
if (x + 2 != 0)
{
maze[x + 2][y] = 0;
maze[x + 1][y] = 0;
generateMaze(maze, x + 2, y, wSize, hSize);
}
break;
case 4://Left
if (y - 2 <= 0)
break;
if (y - 2 != 0)
{
maze[x][y - 2] = 0;
maze[x][y - 1] = 0;
generateMaze(maze, x, y - 2, wSize, hSize);
}
break;
}
}
}
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