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#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <getopt.h>
#include "data_store.h"
#include "game.h"
#include "manual.h"
#define DEFAULT_PORT "12345"
/**
* Print usage information
* @param[in] name The name of the program (normally argv[0])
*/
static void print_usage(const char* name)
{
const char* usage = "Usage: %s [-u username] [-s address] [-n num_players] [-l] [-p port] [-m]\n"
"\t-s address\t\thostname/address to connect to (client, required) or listen on (server, optional)\n"
"\t-n num_players\t\tnumber of players; only on server (default: 2, max: 10)\n"
"\t-l\t\t\tstart server\n"
"\t-u username\t\tyour nickname in the player list (default: $USER)\n"
"\t-p port\t\t\tport to use for connecting/listening (default: %s)\n"
"\t-m\t\t\tdisplay the manual\n";
fprintf(stderr, usage, name, DEFAULT_PORT);
exit(EXIT_FAILURE);
}
/**
* The application's entry point.
* @param[in] argc The number of arguments passed
* @param[in] argv The array of passed arguments
*/
int main(int argc, char *argv[])
{
int opt;
uint8_t num_players = 2;
char* port = NULL;
char* addr = NULL;
bool servermode = false;
data_store_t *ds = data_store();
const char* accepted = "u:s:p:n:hlm";
while((opt = getopt(argc, argv, accepted)) != -1)
{
switch(opt)
{
case 'u': // nickname
strncpy(ds->nickname, optarg, MAX_PLAYER_NAME_LENGTH);
ds->nickname[MAX_PLAYER_NAME_LENGTH] = '\0';
break;
case 'p': // port
port = optarg;
break;
case 's': // hostname
addr = optarg;
break;
case 'n': // number of users
num_players = atoi(optarg);
break;
case 'l':
servermode = true;
break;
case 'm':
print_manual();
break;
case 'h': // help
default:
print_usage(argv[0]);
break;
}
}
if(!servermode && addr == NULL)
print_usage(argv[0]);
if(port == NULL)
port = DEFAULT_PORT;
if(strlen(ds->nickname) == 0)
{
const char* env_nick = getenv("USER");
strncpy(ds->nickname, (env_nick!=NULL)?env_nick:"hornoxe", MAX_PLAYER_NAME_LENGTH);
ds->nickname[MAX_PLAYER_NAME_LENGTH] = '\0';
}
start_game(servermode, addr, port, num_players);
exit(EXIT_SUCCESS);
}
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