Maze Generation
Recursive backtracking algorithm to generate mazes
Overview
A maze generator using the recursive backtracking algorithm. The program creates randomized perfect mazes (mazes with exactly one path between any two points) and visualizes the generation process step-by-step.
Technologies
- C++
- SDL2 (visualization)
Algorithm
Recursive backtracking works by:
- Starting from a random cell
- Randomly choosing an unvisited neighbor
- Removing the wall between current and chosen cell
- Recursively repeating until no unvisited neighbors remain
- Backtracking to find cells with unvisited neighbors
This creates mazes with long, winding corridors and a natural organic appearance.
Technical Challenges
- Managing stack depth for large mazes (converted to iterative with explicit stack)
- Efficient grid representation for wall states
- Smooth animation of the generation process
Possible Extensions
- Implement other algorithms (Prim's, Kruskal's, Eller's)
- Add maze solving visualization (A*, BFS)
Lessons Learned
- Actually using DFS to make something cool
Demo