stock IsNumeric(const string[])
{
	for (new i = 0, j = strlen(string); i < j; i++)
	if (string[i] > '9' || string[i] < '0')
    return 0;
	return 1;
}

ReturnUser(text[], playerid = INVALID_PLAYER_ID)
{
	new pos = 0;
	while (text[pos] < 0x21)
	{
		if (text[pos] == 0) return INVALID_PLAYER_ID;
		pos++;
	}
	new userid = INVALID_PLAYER_ID;
	if (IsNumeric(text[pos]))
	{
		userid = strval(text[pos]);
		if (userid >=0 && userid < MAX_PLAYERS)
		{
			if(!IsPlayerConnected(userid))
				userid = INVALID_PLAYER_ID;
			else return userid;
		}
	}
	new len = strlen(text[pos]);
	new count = 0;
	new pname[MAX_PLAYER_NAME];
	for (new i = 0; i < MAX_PLAYERS; i++)
	{
		if (IsPlayerConnected(i))
		{
			GetPlayerName(i, pname, sizeof (pname));
			if (strcmp(pname, text[pos], true, len) == 0)
			{
				if (len == strlen(pname)) return i;
				else
				{
					count++;
					userid = i;
				}
			}
		}
	}
	if (count != 1)
	{
		if (playerid != INVALID_PLAYER_ID)
		{
			if (count) SendClientMessage(playerid, 0xFF0000AA, "Please type the player's full name.");
			else SendClientMessage(playerid, 0xFF0000AA, "The Player's name has not been found.");
		}
		userid = INVALID_PLAYER_ID;
	}
	return userid;
}

stock strvalEx( const string[] )
{
   //Register Protection
   if( strlen( string ) >= 50 ) return 0;
   return strval(string);
}

stock strtok(const string[], &index)
{
	new length = strlen(string);
	while ((index < length) && (string[index] <= ' '))
	{
		index++;
	}

	new offset = index;
	new result[20];
	while ((index < length) && (string[index] > ' ') && ((index - offset) < (sizeof(result) - 1)))
	{
		result[index - offset] = string[index];
		index++;
	}
	result[index - offset] = EOS;
	return result;
}

public OnPlayerCommandText(playerid, cmdtext[])
{
    new cmd[256],string[248];
    new tmp[256];
	new idx;
    cmd = strtok(cmdtext, idx);
	if(strcmp(cmd, "/pay", true) == 0)
	{
		tmp = strtok(cmdtext,idx);
		if(strlen(tmp))
	  	{
			new giveplayerid = ReturnUser(tmp);
	     	if(IsPlayerConnected(giveplayerid) && !IsPlayerNPC(giveplayerid))
        	{
	    		if(giveplayerid == playerid) { SendClientMessage(playerid,0xFF0000AA," You can't pay yourself."); return 1; }
	       		tmp = strtok(cmdtext,idx);
	          	new cash = strvalEx(tmp);
	          	if(cash < 1 || cash > 999999) { SendClientMessage(playerid,0xFFFFFFAA," Given cash can't be lower than 1 or above 10.000$."); return 1; }
	         	if(GetPlayerMoney(playerid) >= cash)
	     		{
	           		new pName[MAX_PLAYER_NAME], giveplayername[MAX_PLAYER_NAME];
	           		GetPlayerName(playerid, pName,sizeof(pName));
    				GetPlayerName(giveplayerid, giveplayername, sizeof(giveplayername));
					format(string,sizeof(string)," You have received {58A624}%d$ {FFFFFF}from {58A624}%s{FFFFFF}.",cash,pName);
					SendClientMessage(giveplayerid,0xFFFFFFAA,string);
					format(string,sizeof(string)," You have given {58A624}%d$ {FFFFFF}to {58A624}%s{FFFFFF}.",cash,giveplayername);
					SendClientMessage(playerid,0xFFFFFFAA,string);
	            	GivePlayerMoney(playerid,-cash);
	          		GivePlayerMoney(giveplayerid,cash);
				}
				else
				{
					SendClientMessage(playerid,0xFF0000AA," You don't have that money.");
				}
			}
			else
			{
				SendClientMessage(playerid,0xFF0000AA," The Player is not connected.");
			}
		}
		else
		{
			SendClientMessage(playerid,0xFF0000AA," Usage: /pay [playerid/playername] [money]");
		}
		return 1;
	}
	return 0;
}