Simple maze
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Simple maze generator written in 10 minutes :) The source code is public domain.
// Simple Maze Generator in C++ by Jakub Debski '2006
#include <time.h>
#include <vector>
#include <list>
using namespace std;
int main()
{
srand(time(0));
const int maze_size_x=80;
const int maze_size_y=25;
vector < vector < bool > > maze;
list < pair < int, int> > drillers;
maze.resize(maze_size_y);
for (size_t y=0;y<maze_size_y;y++)
maze[y].resize(maze_size_x);
for (size_t x=0;x<maze_size_x;x++)
for (size_t y=0;y<maze_size_y;y++)
maze[y][x]=false;
drillers.push_back(make_pair(maze_size_x/2,maze_size_y/2));
while(drillers.size()>0)
{
list < pair < int, int> >::iterator m,_m,temp;
m=drillers.begin();
_m=drillers.end();
while (m!=_m)
{
bool remove_driller=false;
switch(rand()%4)
{
case 0:
(*m).second-=2;
if ((*m).second<0 || maze[(*m).second][(*m).first])
{
remove_driller=true;
break;
}
maze[(*m).second+1][(*m).first]=true;
break;
case 1:
(*m).second+=2;
if ((*m).second>=maze_size_y || maze[(*m).second][(*m).first])
{
remove_driller=true;
break;
}
maze[(*m).second-1][(*m).first]=true;
break;
case 2:
(*m).first-=2;
if ((*m).first<0 || maze[(*m).second][(*m).first])
{
remove_driller=true;
break;
}
maze[(*m).second][(*m).first+1]=true;
break;
case 3:
(*m).first+=2;
if ((*m).first>=maze_size_x || maze[(*m).second][(*m).first])
{
remove_driller=true;
break;
}
maze[(*m).second][(*m).first-1]=true;
break;
}
if (remove_driller)
m = drillers.erase(m);
else
{
drillers.push_back(make_pair((*m).first,(*m).second));
// uncomment the line below to make the maze easier
// if (rand()%2)
drillers.push_back(make_pair((*m).first,(*m).second));
maze[(*m).second][(*m).first]=true;
++m;
}
}
}
// Done
for (size_t y=0;y<maze_size_y;y++)
for (size_t x=0;x<maze_size_x;x++)
{
if (maze[y][x]==true)
printf(".");
else
printf("#");
}
return 0;
}
Sample result:
######.........#.#.......#.....#...#.....#.........#.#...#.#.......#.......##### ######.#.###.#.#.#.#######.#.#####.#.###.#.#.#####.#.###.#.#.#######.########### .....#.#.#...#.#.........#.#.#.....#.###...#.#.....#.......#.......#.....####### .#.#.###.#.#####.#.#.#######.#.#.#.#.#####################.#.###.#######.####### .#.#.#...#...#...#.#...#.#.#.#.#.#.#.........#.....#...........#.#.............# ####.#.#######.#######.#.#.#.#.#.#######.#.#.#.#.#.#.#######.#######.#######.#.# ##...#...#####.#.#####.#...#...#.#...#.#.#.#...#.#...###...#.#.......#.......#.# ####.###.#####.#.#####.#.###.#.###.###.#.#.###.#########.#####.###.############# .........###.#.....###.#...#.#.#.#.......#.#...#...#.#.#.#.......#.###...#.....# ########.###.#.#.#.###.#.#.###.#.#.#####.#.###.#.###.#.#.#.#.###.#####.###.#.### .......#.....#.#.#.#...#.#...........#...#.#.....#.......#.#...#.#.........#...# ####.#.#.#####.#.###.#######.#######.###.#.#.###.#.#####.#.#####.#.#.#####.##### ...#.#.#.......#...#.....#.....#.#...#####.#...#.......#.#...#.....#...#.#.....# ##.###.#.#.#.###.#####.#.#####.#.#.#######.#####.#####.#.###.#.###.#####.#####.# ##...#...#.#.#.......#.#.....#...#.......#...#...#.....#.....#...#...........#.# ####.#.###########.###.#.###.#####.#######.###.###########.###.###.#####.###.### ####...###.....#...#.#.#...#...........###...#.###...#.###.###...#.....#.#.....# ####.#####.#######.#.###.###.#.#####.#.#############.#.###.#####.#####.#.###.### ####.........#.#...#.....#.#.#.#.....#.###.#...#.............#...#####.#...#...# ######.#.#####.#.###.#.#.#.###.#######.###.#.#####.###.#################.####### ######.#...#.#.....#.#.#.#...#...###...###.....#...#.......#########...#.......# ######.###.#.#####.#####.#.###.#.###.#.###.#.###.###.#####.#########.#########.# ######.#.#.#...###...#...#.#.#.#...#.#.....#.#.#...#.###...#########...#.......# ########.#.###.#######.#.#.#.###.#######.###.#.#####.###############.#.###.##### ########...###.........#.#.......#######.#.....#####.......#########.#.........#
With little changes you can get cool results, f.e.
else
{
// drillers.push_back(make_pair((*m).first,(*m).second));
// drillers.push_back(make_pair((*m).first,(*m).second));
// change to
for (size_t index=0;index<10;index++)
drillers.push_front(make_pair((*m).first,(*m).second));
gives "star-like" effect:
.#.#...#...#.....#...#...#...#.#...#...#.....#...#...#.......#...#.....#.....#.# .#.###.###.#####.###.###.###.#.###.###.#.#####.###.###.#######.###.#####.#####.# ...#.#...#...#...#.#...#...#...#.#...#.....#...#.......#.............#.#...#...# ##.#.###.###.###.#.###.###.###.#.###.#.#####.###.#######.#############.#.###.### .......#...#.#.#.....#.#.#.......#.#.....#...#...#.#...#...#...#.#.#.#...#...#.# ######.###.#.#.#####.#.#.#######.#.###.###.###.###.#.###.###.###.#.#.#.###.###.# ...#.#...#...#...#.......#.#...#.....#.....#...#.....#...#...#.#.......#...#...# ##.#.###.###.###.#######.#.###.#####.#.#####.###.#####.###.###.#.#######.###.### .#...#.#.#.#...#.#.#.....#.#.#...#.......#...#.#...#.#.#...#.#...#.#...#.#...#.# .###.#.#.#.###.#.#.#####.#.#.###.#####.###.###.#.###.#.#.###.#.###.#.###.#.###.# .................#...#...#.#.#.#...#...#.......................................# ####.###.###.###.###.###.#.#.#.###.###.#.###.###.###.###.###.###.###.###.###.### .#.#.#.#.#.#.#...........................#.#.#.#.#.#.#.#.#.#.#.#...#.#.#.#.#.#.# .#.###.###.#####.#.#.#####.#####.#.###.#.#.###.###.###.###.###.#######.###.###.# .................#.#.#.....#.....#.#...#.......................................# ##.###.#.###.#.###.#####.###.#.#.#####.###.#.#.###.#.###.###.#.#.###.#.###.#.#.# ...#...#.#...#.#...#.....#...#.#.#.......#.#.#...#.#...#...#.#.#...#.#...#.#.#.# .###.#.###.#.###.#.#######.#.#.#####.#.#####.###.###.#.#######.###.###.#.###.### .#...#.#...#.#...#.#.......#.#.#.....#.....#...#...#.#.......#...#...#.#...#...# ##.#.#####.###.#.###.###.###.#####.###.#.#.###.###.###.#.###.###.#.#####.#####.# ...#.#.....#...#.#...#...#...#.....#...#.#...#...#...#.#...#...#.#.....#.....#.# .#.###.#.#####.###.###.###.###.#.###.#.###.#.###.###.###.#####.###.###.###.#.### .#.#...#.#.....#...#...#...#...#.#...#...#.#...#...#...#.....#...#...#...#.#...# .#####.#####.###.###.###.###.#.###.###.#####.#.###.###.###.#.###.#.#.###.###.### .#.....#.....#...#...#...#...#.#...#.......#.#...#...#...#.#...#.#.#...#...#...#
or
(*m).second-=2;
// if ((*m).second<0 || maze[(*m).second][(*m).first])
// change to
if ((*m).second<0 || (maze[(*m).second][(*m).first] && rand()%5))
allows loops (sample loop top left corner is marked with comas):
.......#,,,,,,,,.#####.....#####...#...............#...#.###.....###...#.#.#.### .#######,#####.#,#######.#######.#.#############.#.###.#.###.#########.#.#.#.### .#...#..,,,,,#.#,,,###...#######.#.#...#.........#.....#.......................# .#.###.#####,#####,###.#.#########.#.#########.#####.#.#.###.#.#########.#.#.#.# .#.....#....,,,,,,,....#.#######.....#...#...#...###.#.......#.###.#.....#.#...# .#.#.#####.#.#.###.#################.#.#.###.#######.#####.###.###.#.#####.##### .#...#.....#.....#.#...#.......#.#...#.#.....#######...#...#...#.#.#.###...#.### .#.###.###.#.###.#.###.#.#######.#.#.###.#.#.#######.###########.#.#######.#.### ...#...#.#.#.#...#.....#.....#...#.#.....#...#.#####.......#.....#.........#...# ####.#.#.#.#####.#.#.#.###.#.###.#######.#.#.#.#######.#.#.#.#.#.###.#######.### ...#.#.#.....#.....#.#.#...#.#...#.....#.#.#...#...#...#.#...#.#...............# .###.###.#####.#######.###.#.###.#.###.###.#.#.#.#####.#######.###.#######.#.#.# .....#.#.#...#...#...#.#...#...........#.....#.........#.#####.#...#...###...#.# ##.###.#.#.#.#.#.#.#########.#.###.###.#.###.#######.###.#####.###.#.#.###.##### ...#.......#...#...#.......#.#.#...#...#...#.#.#...#.#.....#...#...#.#.#...#...# ####.#.#######.#.#.#.###.###.#.#.#####.#####.#.#.#####.#.#.#.#.#######.#####.### .......#...#...#.#.....#.#...#...#...............#.....#.#...#...........#...### ##.#####.###########.#####.#########.#.###.###.#.#########.###.###.#.#.###.#.### .......#...#.#.......#.....#.....#...#.#.....#.#.#...........#...#.....#.#.#...# ##.#.###.###.#.#.###.#######.#.#.#####.###.#####.###.#.#.#####.###.#.###.###.### ##.#...#.......#...#.........#.#.......#...###.#.....#...#####...#.............# ########.###.#.#.#########.#####.#.#####.#####.#.#####.#.#####.#####.#.#.####### ##.........#.#...#.#...#...#...#.....#.....#...#.....#.#.#####.....#...#.....### ######.###.#.#.###.#.###.#.#.###.#.#.#.#.#.###.#####.#.#######.#.#.###.######### ##.......#.#...........#.#.....#.#.#.#.#.#.....###...#.###.......#...#...#######