使用shell编写五子棋游戏

以下是一个简单的五子棋游戏的shell代码：

#!/bin/bash

# 初始化棋盘
declare -a chessboard
for ((i=0; i<15; i++)); do
  for ((j=0; j<15; j++)); do
    chessboard[$i,$j]=.
  done
done

# 打印棋盘
print_chessboard() {
  echo "   A B C D E F G H I J K L M N"
  for ((i=0; i<15; i++)); do
    if [[ $i -lt 9 ]]; then
      echo -n " $((i+1))"
    else
      echo -n "$((i+1))"
    fi
    for ((j=0; j<15; j++)); do
      echo -n " ${chessboard[$i,$j]}"
    done
    echo ""
  done
}

# 判断胜负
check_win() {
  local row=$1
  local col=$2
  local player=${chessboard[$row,$col]}

  # 横向判断
  local count=1
  local i=$row
  local j=$col
  while [[ $((j-1)) -ge 0 && ${chessboard[$i,$((j-1))]} == $player ]]; do
    let count++
    let j--
  done
  i=$row
  j=$col
  while [[ $((j+1)) -lt 15 && ${chessboard[$i,$((j+1))]} == $player ]]; do
    let count++
    let j++
  done
  if [[ $count -ge 5 ]]; then
    echo $player
    return
  fi

  # 纵向判断
  count=1
  i=$row
  j=$col
  while [[ $((i-1)) -ge 0 && ${chessboard[$((i-1)),$j]} == $player ]]; do
    let count++
    let i--
  done
  i=$row
  j=$col
  while [[ $((i+1)) -lt 15 && ${chessboard[$((i+1)),$j]} == $player ]]; do
    let count++
    let i++
  done
  if [[ $count -ge 5 ]]; then
    echo $player
    return
  fi

  # 左上到右下判断
  count=1
  i=$row
  j=$col
  while [[ $((i-1)) -ge 0 && $((j-1)) -ge 0 && ${chessboard[$((i-1)),$((j-1))]} == $player ]]; do
    let count++
    let i--
    let j--
  done
  i=$row
  j=$col
  while [[ $((i+1)) -lt 15 && $((j+1)) -lt 15 && ${chessboard[$((i+1)),$((j+1))]} == $player ]]; do
    let count++
    let i++
    let j++
  done
  if [[ $count -ge 5 ]]; then
    echo $player
    return
  fi

  # 右上到左下判断
  count=1
  i=$row
  j=$col
  while [[ $((i-1)) -ge 0 && $((j+1)) -lt 15 && ${chessboard[$((i-1)),$((j+1))]} == $player ]]; do
    let count++
    let i--
    let j++
  done
  i=$row
  j=$col
  while [[ $((i+1)) -lt 15 && $((j-1)) -ge 0 && ${chessboard[$((i+1)),$((j-1))]} == $player ]]; do
    let count++
    let i++
    let j--
  done
  if [[ $count -ge 5 ]]; then
    echo $player
    return
  fi

  echo "."
}

# 游戏开始
player=1
while true; do
  print_chessboard
  if [[ $player -eq 1 ]]; then
    echo "请玩家1落子（例如：A1）："
  else
    echo "请玩家2落子（例如：B3）："
  fi
  read -r pos
  row=$(echo "$pos" | cut -c2)
  col=$(echo "$pos" | cut -c1)
  let row--
  case $col in
    A) col=0;;
    B) col=1;;
    C) col=2;;
    D) col=3;;
    E) col=4;;
    F) col=5;;
    G) col=6;;
    H) col=7;;
    I) col=8;;
    J) col=9;;
    K) col=10;;
    L) col=11;;
    M) col=12;;
    N) col=13;;
    *) col=-1;;
  esac
  if [[ $row -lt 0 || $row -ge 15 || $col -lt 0 || $col -ge 15 ]]; then
    echo "无效的位置！"
    continue
  fi
  if [[ ${chessboard[$row,$col]} != "." ]]; then
    echo "此位置已有子！"
    continue
  fi
  if [[ $player -eq 1 ]]; then
    chessboard[$row,$col]=X
  else
    chessboard[$row,$col]=O
  fi
  winner=$(check_win $row $col)
  if [[ $winner != "." ]]; then
    print_chessboard
    if [[ $winner == "X" ]]; then
      echo "玩家1获胜！"
    else
      echo "玩家2获胜！"
    fi
    break
  fi
  if [[ $player -eq 1 ]]; then
    player=2
  else
    player=1
  fi
done

使用方法：

1. 将代码保存为一个文件（例如 `gobang.sh`）；
2. 在终端中进入代码所在的目录；
3. 运行 `./gobang.sh` 命令即可开始游戏。