gistfile1.txt

#include <vector>

int width = 8, height = 10;
struct Tile {
    bool is_wall;
} tiles[height][width];

struct Coordinate {
    int x, y;
};

vector<Coordinate> neighbors(Coordinate current) {
    vector<Coordinate> neighbors;
    Coordinate potentials[] = {
        {current.x, current.y-1},
        {current.x, current.y+1},
        {current.x-1, current.y},
        {current.x+1, current.y},
    };
    for(int i = 0; i < 4; i++) {
        Coordinate coordinate = potentials[i];
        if(!tiles[coordinate.y][coordinate.x].is_wall)
            neighbors.push_back(coordinate);
    }
    return neighbors;
}