zcmd to sampGDK

#pragma once

#include <sampgdk\a_samp.h>
#include <map>
#include <string>
#include <functional>

#ifndef _ZCMD_H
#define _ZCMD_H

extern std::map<std::string, std::function<bool(int, char*)>> commands;

#define COMMAND:command(playerid, params) \
    bool cmd_command(int playerid, char* params); \
    commands[#command] = cmd_command(playerid, params); \
    bool cmd_command(int playerid, char* params)

#define CMD:command(playerid, params) \
    COMMAND:command(playerid, params)

#define command(cmd, playerid, params) \
    COMMAND:cmd(playerid, params)

#define cmd(command, playerid, params) \
    COMMAND:command(playerid, params)

#ifndef isnull
    #define isnull(str) \
        ((!(str[0])) || (((str[0]) == '\1') && (!(str[1]))))
#endif

PLUGIN_EXPORT bool PLUGIN_CALL OnPlayerCommandText(int playerid, const char* cmdtext)
{
    char* cmd;
    int pos;

    while (cmdtext[++pos] > ' ')
        cmd[pos - 1] = tolower(cmdtext[pos]);

    while (cmdtext[pos] == ' ') pos++;
    char* params = const_cast<char*>(strstr(cmdtext, &cmdtext[pos]));

    if (!cmdtext[pos])
        return commands[cmd](playerid, "");
    else
        return commands[cmd](playerid, params);
}

#endif