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C++自动生成迷宫游戏

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本文实例为大家分享了C++实现迷宫游戏的具体代码,供大家参考,具体内容如下 。

运用并查集自动生成迷宫地图,并运用队列和栈寻找迷宫通路并打印出来 。

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#include<stdlib.h>
#include<iostream>
#include< time .h>
#include<queue>
#include<stack>
using namespace std;
using std::queue;
using std::stack;
typedef struct Point
{
  int x;
  int y;
  int d;//方向 若方向为-1,则表示起点
}Point;
queue<Point> mqueue;
stack<Point> mstack;
Point pos, pos1;
int m, n;//迷宫行(tm-1)/2和列(tn-1)/2
int tm, tn;//实际作图
int x, y, tx1, tx2, ty1, ty2;//点坐标
int d;
int s[10000000];
int maze[1000][1000], mark[1000][1000];//最大迷宫
int sign[4][2] = { { -1,0 },{ 1,0 },{ 0,-1 },{ 0,1 } };//上下左右四个方向 0上 1下 2上 3下
Point start;
int Find_x( int x);
void unionSets( int node1, int node2);
void Init();
int getAdd( int x, int y);
void foundpath();
void fixmaze();
int connected( int node1, int node2);
void Findpath();
void changemaze();
int main()
{
  Init();
  cout << "请输入迷宫规模2x-1,2y-1:(x y)" << endl;
  cin >> m >> n;
  tm = m * 2 + 1;
  tn = n * 2 + 1;
  start.x = 1;
  start.y = 1;
  start.d = -1;
  mqueue.push(start);
  for ( int i = 0; i < tm; i++)
  {
  for ( int j = 0; j < tn; j++)
  {
   maze[i][j] = 1;
   mark[i][j] = 0;
  }
  }
  for ( int i = 1; i < tm - 1; i += 2)
  {
  for ( int j = 1; j < tn - 1; j += 2)
   maze[i][j] = 0;
  }
  srand( time ( NULL ));
  foundpath();
  fixmaze();
  cout << "迷宫全图:" << endl;
  for ( int i = 0; i < tm; i++)
  {
  for ( int j = 0; j < tn; j++)
  {
   if (maze[i][j] == 1)
   cout << "▇" ;
   else if (maze[i][j] == 0) cout << "□" ;
  }
  cout << endl;
  }
  Findpath();
  changemaze();
  cout << "找到的通路:“..”表示:" << endl;
  for ( int i = 0; i < tm; i++)
  {
  for ( int j = 0; j < tn; j++)
  {
   if (maze[i][j] == 1)
   cout << "▇" ;
   else if (maze[i][j] == 0) cout << "□" ;
   else if (maze[i][j] == -1) cout << ".." ;
 
  }
  cout << endl;
  }
  system( "pause" );
  return 0;
}
int connected( int node1, int node2)
{
  return Find_x(node1) == Find_x(node2);
}
int Find_x( int x)
{
  if (s[x] < 0)
  return x;
  else
  return Find_x(s[x]);
 
 
};
void unionSets( int node1, int node2)
{
  int root1 = Find_x(node1);
  int root2 = Find_x(node2);
  if (root1 == root2)
  return ;
  if (s[root2] < s[root1])
  s[root1] = root2;
  else {
  if (s[root1] == s[root2])
   s[root1] --;
  s[root2] = root1;
  }
};
int getAdd( int x, int y)
{
  return (x*tn + y);
};
void Init()
{
  for ( int i = 0; i < 10000000; ++i)
  s[i] = -1;
};
void foundpath()
{
  while (connected(getAdd(1, 1), getAdd(tm - 2, tn - 2)) != 1)
  {
  do
  {
   x = rand() % (tm - 2) + 1;
   y = rand() % (tn - 2) + 1;
  } while (maze[x][y] == 0);
  d = x % 2;
  if (d == 0)
  {
   tx1 = x + 1;
   ty1 = y;
   tx2 = x - 1;
   ty2 = y;
   if (connected(getAdd(tx1, ty1), getAdd(tx2, ty2)) != 1)
   {
   maze[x][y] = 0;
   unionSets(Find_x(getAdd(tx1, ty1)), Find_x(getAdd(tx2, ty2)));
   }
  }
  else if (d == 1)
  {
   tx1 = x;
   ty1 = y + 1;
   tx2 = x;
   ty2 = y - 1;
   if (connected(getAdd(tx1, ty1), getAdd(tx2, ty2)) != 1)
   {
   maze[x][y] = 0;
   unionSets(Find_x(getAdd(tx1, ty1)), Find_x(getAdd(tx2, ty2)));
   }
  }
  }
}
void fixmaze()
{
  for ( int i = 1; i < tm - 1; i++)
  {
  for ( int j = 1; j < tn - 1; j++)
  {
   if (maze[i - 1][j] == 1 && maze[i + 1][j] == 1 && maze[i][j + 1] == 1 && maze[i][j - 1] == 1)
   {
   maze[i][j] = 1;
   }
  }
  }
  for ( int i = 1; i < tm - 1; i++)
  {
  for ( int j = 1; j < tn - 1; j++)
  {
   if (maze[i - 1][j - 1] == 0 && maze[i - 1][j] == 0 && maze[i - 1][j + 1] == 0 && maze[i][j - 1] == 0 && maze[i][j] == 0 && maze[i][j + 1] == 0 && maze[i + 1][j - 1] == 0 && maze[i + 1][j] == 0 && maze[i + 1][j + 1] == 0)
   {
   maze[i][j] = 1;
   }
   if (maze[i - 1][j - 1] == 1 && maze[i - 1][j] == 0 && maze[i - 1][j + 1] == 0 && maze[i][j - 1] == 0 && maze[i][j] == 0 && maze[i][j + 1] == 0 && maze[i + 1][j - 1] == 0 && maze[i + 1][j] == 0 && maze[i + 1][j + 1] == 0)
   {
   maze[i][j] = 1;
   }
   if (maze[i - 1][j - 1] == 0 && maze[i - 1][j] == 1 && maze[i - 1][j + 1] == 0 && maze[i][j - 1] == 0 && maze[i][j] == 0 && maze[i][j + 1] == 0 && maze[i + 1][j - 1] == 0 && maze[i + 1][j] == 0 && maze[i + 1][j + 1] == 0)
   {
   maze[i][j] = 1;
   }
   if (maze[i - 1][j - 1] == 0 && maze[i - 1][j] == 0 && maze[i - 1][j + 1] == 1 && maze[i][j - 1] == 0 && maze[i][j] == 0 && maze[i][j + 1] == 0 && maze[i + 1][j - 1] == 0 && maze[i + 1][j] == 0 && maze[i + 1][j + 1] == 0)
   {
   maze[i][j] = 1;
   }
   if (maze[i - 1][j - 1] == 0 && maze[i - 1][j] == 0 && maze[i - 1][j + 1] == 0 && maze[i][j - 1] == 1 && maze[i][j] == 0 && maze[i][j + 1] == 0 && maze[i + 1][j - 1] == 0 && maze[i + 1][j] == 0 && maze[i + 1][j + 1] == 0)
   {
   maze[i][j] = 1;
   }
   if (maze[i - 1][j - 1] == 0 && maze[i - 1][j] == 0 && maze[i - 1][j + 1] == 0 && maze[i][j - 1] == 0 && maze[i][j] == 1 && maze[i][j + 1] == 0 && maze[i + 1][j - 1] == 0 && maze[i + 1][j] == 0 && maze[i + 1][j + 1] == 0)
   {
   maze[i][j] = 1;
   }
   if (maze[i - 1][j - 1] == 0 && maze[i - 1][j] == 0 && maze[i - 1][j + 1] == 0 && maze[i][j - 1] == 0 && maze[i][j] == 0 && maze[i][j + 1] == 1 && maze[i + 1][j - 1] == 0 && maze[i + 1][j] == 0 && maze[i + 1][j + 1] == 0)
   {
   maze[i][j] = 1;
   }
   if (maze[i - 1][j - 1] == 0 && maze[i - 1][j] == 0 && maze[i - 1][j + 1] == 0 && maze[i][j - 1] == 0 && maze[i][j] == 0 && maze[i][j + 1] == 0 && maze[i + 1][j - 1] == 1 && maze[i + 1][j] == 0 && maze[i + 1][j + 1] == 0)
   {
   maze[i][j] = 1;
   }
   if (maze[i - 1][j - 1] == 0 && maze[i - 1][j] == 0 && maze[i - 1][j + 1] == 0 && maze[i][j - 1] == 0 && maze[i][j] == 0 && maze[i][j + 1] == 0 && maze[i + 1][j - 1] == 0 && maze[i + 1][j] == 1 && maze[i + 1][j + 1] == 0)
   {
   maze[i][j] = 1;
   }
   if (maze[i - 1][j - 1] == 0 && maze[i - 1][j] == 0 && maze[i - 1][j + 1] == 0 && maze[i][j - 1] == 0 && maze[i][j] == 0 && maze[i][j + 1] == 0 && maze[i + 1][j - 1] == 0 && maze[i + 1][j] == 0 && maze[i + 1][j + 1] == 1)
   {
   maze[i][j] = 1;
   }
  }
  }//局部优化,防止出现大面积通路
}
void Findpath()
{
  int flag = 0;
  int i, j;
  while (!mqueue.empty())
  {
  i = mqueue.front().x;
  j = mqueue.front().y;
  mark[i][j] = 1;
  for ( int k = 0; k < 4; k++)
  {
   if (mark[i + sign[k][0]][j + sign[k][1]] == 0 && maze[i + sign[k][0]][j + sign[k][1]] == 0)
   {
   pos.x = i + sign[k][0];
   pos.y = j + sign[k][1];
   pos.d = k;
   mark[pos.x][pos.y] = 1;
   mqueue.push(pos);
   if (mqueue.back().x == tm - 2 && mqueue.back().y == tn - 2)
   {
    mstack.push(mqueue.front());
    mstack.push(mqueue.back());
    flag = 1;
    break;
   }
   }
  }
  if (flag) break;
  mstack.push(mqueue.front());
  if (!mqueue.empty())
   mqueue.pop();
  }
}
void changemaze()
{
  int i, j, k;
  i = mstack. top ().x;
  j = mstack. top ().y;
  k = mstack. top ().d;
  maze[i][j] = -1;
  while (mstack. size ()>0)
  {
  if (mstack. top ().x == i - sign[k][0] && mstack. top ().y == j - sign[k][1])
  {
   i = i - sign[k][0];
   j = j - sign[k][1];
   k = mstack. top ().d;
   maze[i][j] = -1;
   if (!mstack.empty())
   mstack.pop();
  }
  else if (!mstack.empty())
   mstack.pop();
 
  }
}

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