работа автобусника

[camper93rus]

ребят подскажите

case CHECKPOINT_37: 
                { 
                       AutoBusCheck[playerid]++; 
                       format(string, sizeof(string), "cost: $%d",AutoBusCheck[playerid] * (32 + random(2))); 
                    GameTextForPlayer(playerid, string, 5000, 4); 
                    pAutoBusLS[playerid] = CHECKPOINT_38; 
                    SetPlayerRaceCheckpoint(playerid, 1,2239.5859,-2210.0459,13.4596,0.0,0.0,0.0, 7.0); 
                    BusStop[playerid] = 5; 
                } 
                case CHECKPOINT_38: 
                { 
                    if(BusStop[playerid] == 5) 
                    { 
                        BusStopTime[playerid] = 11; 
                        SendClientMessage(playerid, COLOR_GREEN, "Остановите автобус и подождите пассажиров!"); 
                          format(string, sizeof(string), "Автобус отъезжает через 10 секунд"); 
                        ProxDetector(30.0, playerid, string, COLOR_GREEN,COLOR_GREEN,COLOR_GREEN,COLOR_GREEN,COLOR_GREEN); 
                    } 
                    else 
                    { 
                        pAutoBusLS[playerid] = CHECKPOINT_40; 
                        SetPlayerRaceCheckpoint(playerid, 0,2281.9973,-2252.0698,13.6036,2318.6899,-2256.4153,13.5084, 7.0); 
                    } 
                } 
                case CHECKPOINT_40: 
                { 
                       AutoBusCheck[playerid]++; 
                       format(string, sizeof(string), "cost: $%d",AutoBusCheck[playerid] * (32 + random(2))); 
                    GameTextForPlayer(playerid, string, 5000, 4); 
                    pAutoBusLS[playerid] = CHECKPOINT_41; 
                    SetPlayerRaceCheckpoint(playerid, 0,2318.6899,-2256.4153,13.5084,2413.6458,-2180.0645,13.5084, 7.0); 
                }

объясните что за что отвечает..я хочу создать новый маршрут автобусу просто...плиз)