#include <a_samp>

public OnPlayerText(playerid, text[])
{
    if(!strcmp(text, "savembpos ", true, 9))
    {
        if(text[9] != ' ')
        {
            SendClientMessage(playerid, -1, "Please type a place location!");
            return 0;
        }
        new Float:Pos[3];
        new File:pos=fopen("positions.txt", io_append), string[128];
        GetPlayerPos(playerid, Pos[0], Pos[1], Pos[2]);
        format(string, sizeof(string), "{%f, %f, %f, \"%s\"},", Pos[0], Pos[1], Pos[2], text[10]);
        fwrite(pos, string);
        return 0;
    }
    //Copy and paste what is in the positions.txt in your scriptfiles folder into the top of the co-ordinates.
    //Type savembpos (Location Name Here) ingame :)
    return 1;
}