#!/bin/bash

if [[ $# < 2 ]]; then
  echo "Wrong args amount"
  exit 1
fi

if [[ $2 < 1 ]]; then
  echo "S lower than 1"
  exit 1
fi

if [[ $2 > $1 ]]; then
  echo "S greater than N"
  exit 1
fi

counter=0
n=$1

while [ $licznik -lt $n ]
  do
    tab[$licznik]=_
    let "counter++"
done

s=$2

while [ $s -gt 0 ]
  do
      a=$((RANDOM % ($1-0+1) + 0))
      if [[ ${tab[$a]} == _ ]]; then
        tab[$a]="X"
        let 's--'
      fi
done

hits=0
moves=0

while [ $hits -lt $2 ]
  do
    echo "Your move"
    read choice
    if [[ ${tab[$choice]} == "X" ]]; then
      echo "HIT"
      let 'hits++'
    else
      echo "Miss"
    fi
  let 'moves++'
done

echo "Result: "$2"/"$moves