[PowerF]

I got this script from my friend on skype
when I tried to compile it i get this error,what should I do?

Код:

xx\FR_RP1.5.pwn(4523) : error 017: undefined symbol "vmodelused"
xx\FR_RP1.5.pwn(4523) : warning 215: expression has no effect
xx\FR_RP1.5.pwn(4523) : error 001: expected token: ";", but found "]"
xx\FR_RP1.5.pwn(4523) : error 029: invalid expression, assumed zero
xx\FR_RP1.5.pwn(4523) : fatal error 107: too many error messages on one line

Compilation aborted.Pawn compiler 3.2.3664	 	 	Copyright © 1997-2006, ITB CompuPhase


4 Errors.

PHP код:

                    new temps1 = pvehicle[playerid][0];
                    new temps2 = GetVehicleModel(temps1);
                    if (tvar2 == temps2) {
                        GetVehicleDamageStatus(pvehicle[playerid][0], panels, doors, lights, tires);
                        dini_IntSet(AddDirFile(dir_carfiles, string), "panels", panels);
                        dini_IntSet(AddDirFile(dir_carfiles, string), "doors", doors);
                        dini_IntSet(AddDirFile(dir_carfiles, string), "lights", lights);
                        dini_IntSet(AddDirFile(dir_carfiles, string), "tires", tires);
                    }
                    else {
                        vmodelused[temps2-400] --;
                        if (vmodelused[temps2-400] == 0) vehiclemodels --;
                        dini_IntSet(AddDirFile(dir_carfiles, string), "panels", 0);
                        dini_IntSet(AddDirFile(dir_carfiles, string), "doors", 0);
                        dini_IntSet(AddDirFile(dir_carfiles, string), "lights", 0);
                        dini_IntSet(AddDirFile(dir_carfiles, string), "tires", 0);
                    }