naval_fate.cpp

#include "docopt/docopt.h"

#include <iostream>

static const char USAGE[] =
R"(Naval Fate.

    Usage:
      naval_fate ship new <name>...
      naval_fate ship <name> move <x> <y> [--speed=<kn>]
      naval_fate ship shoot <x> <y>
      naval_fate mine (set|remove) <x> <y> [--moored | --drifting]
      naval_fate (-h | --help)
      naval_fate --version

    Options:
      -h --help     Show this screen.
      --version     Show version.
      --speed=<kn>  Speed in knots [default: 10].
      --moored      Moored (anchored) mine.
      --drifting    Drifting mine.
)";

int main(int argc, const char** argv)
{
    std::map<std::string, docopt::value> args = docopt::docopt(USAGE, 
                                                  { argv + 1, argv + argc },
                                                  true,               // show help if requested
                                                  "Naval Fate 2.0");  // version string

    for(auto const& arg : args) {
        std::cout << arg.first << ": " << arg.second << std::endl;
    }

    return 0;
}