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Need For Speed 2 cheats / Need For Speed 2 hints / Need For Speed 2 faqs / Need For Speed 2 solutions Need For Speed 2 hints ************************************************************************** * * * NEED FOR SPEED II - DAT File format description - Version 0.1 * * * ************************************************************************** ========================================================================= NFS2 CAR PERFORMANCE FILE SPECS ========================================================================= ????.QDA PERFORMANCE FILE FORMAT: WHERE:FIXED PT. = 32-BIT INTEGER = FORMAT: (0x0000- 0000) INT - FRACTION OFFSET DESCRIPTION ------ ----------- 0x000 WEIGHT / 2 IN FIXED PT. MIN = 750(vw) MAX = 12000(bus) 0x004 NUMBER OF GEARS INCLUDING REVERSE AND NEUTRAL MIN = 6 MAX = 8 0x008 VEHICLE CHASSIS TYPE 2 = TOUR BUS CLASS 4 = FORD INDIGO CLASS 6 = LOTUS GT1 CLASS 8 = MCLAREN CLASS 10 = CHEVY CLASS 12 = BMW CLASS 16 = VOLKS WAGON CLASS 24 = BUS CLASS --------------------------------------------------- NOTE : THE NEXT 57 INTEGERS ARE ALL IN FIXED PT. 0x00C REVERSE : GEAR RATIO 0x010 NEUTRAL : ALWAYS ZERO 0x014 1ST : GEAR RATIO 0x018 2ND : GEAR RATIO 0x01C 3RD : GEAR RATIO 0x020 4TH : GEAR RATIO 0x024 5TH : GEAR RATIO OR ZERO IF 4 SPEED 0x028 6TH : GEAR RATIO OR ZERO IF 5 SPEED ----------- BHP(BRAKE HORSE POWER)/GEAR MULTIPLIERS 0X10000 = 1* BHP/RPM VALUES DEFINED BELOW 0X20000 = 2* ECT. 0x02C REVERSE : GEAR BHP multiplier 0x030 NEUTRAL : GEAR BHP multiplier 0x034 1ST : GEAR BHP multiplier 0x038 2ND : GEAR BHP multiplier 0x03C 3RD : GEAR BHP multiplier 0x040 4TH : GEAR BHP multiplier 0x044 5TH : GEAR BHP multiplier 0x048 6TH : GEAR BHP multiplier ----------- THE NEXT 41 VALUES INDICATE BHP AS A PERCENTAGE OF RPM WITH THE FOLLOWING STRUCTURE: 0x04C BHP AT MIN RPM FOR ALL GEARS TO 0x0EC BHP AT MAX RPM FOR ALL GEARS --------- END FIXED PT. TABLES ----------------------------------------------- 0x0F0 MAX DEVELOPED RPM 0x0F4 MIN = 1e0000 MAX = 7e0000 (indigo) 0x0F8 ???? 0x0FC ???? 0x100 ???? --------- 0x104 32 BYTES THAT CHANGING AND TESTING APPEAR TO DO NOTHING TO 0x124 --------- 0x124 ???? 0x128 ???? 0x12C STEERING/HANDLING :LARGER IS BETTER --------- NOTE: HEAVY CARS HAVE LESS FOR NEXT 2 VALUES MOST RACE CARS ARE 16/32 0x130 6 8 10 12 14 16 INDIGO 16 0x134 12 16 20 24 28 32 INDIGO 36 --------- 0x138 MIN = 0xE666 MAX = 0x46666 SEMI HAS 0x10000 RACE CARS > 0x10000 0x13C ALL PTR*.QDA HAVE 0 GT1 HAS MAX VALUE (0xA3) 0x140 ???? 0x144 ???? 0x148 ???? 0x14C ???? 0x150 ???? 0x154 ???? 0x158 PIONEER ENGINE RPM 0x15C ???? 0x160 ???? =========================== notes: MOST ???? VALUES I HAVE CHANGED WITHOUT NOTICABLE AFFECTS. The values to change that give the most satisfaction are: maximun rpm bhp/gear steering gear ratios weight vehicle chassis type performance characteristics: --------------------------- The calculations below depend on all bhp/rpm values(41 in all) being set to: 0x640000 (100 in fixed pt.) where: gr = gear ratio of the gear of interest. : rps = rpm/60. : maxspeed = maximun obtainable speed of a particular gear. : acceltime = time in seconds to accelerate to maxspeed in a particular gear. maxspeed == (max rpm * 2.165)/gr and a == a=(gr/rps @ 500 - gr/rps @ max rps) dist == (maxspeed this gear-maxspeed last gear)*1.467 acceltime == (dist/a) * ((weight/bhp)/5) note: maxspeed is accurate in top gear only if there is enough bhp. --------------------------- Any comments or questions e-mail me at sselzer637@aol.com. Special thanks to denis auroux who provided vital information and source code. P.S. I NEED FILE SPECS FOR *.GEO FILES. ANY HELP ON THE STRUCTURE OF THESE FILES WOULD BE GREATLY APPRECIATED. Included below is some initial info reguarding the structure of the car bitmap files. *.qfs car bitmap file info the header int "SHPI" int file length int directory entry count int "GIMX" end each directory int "name" as found in geo files int offset from start of file to the bitmap header end bitmap header int id= 0x2a=palette 0x7d=a "SHLB" 0x7b=std. bitmap short width short heigth int ?? int ?? end notes: a char==0xff indicates a transparent bit the first dir entry "0000" is the palette. 256 colors described as 1 int for each color. red=color[0] green-color[1] blue=color[2] 0xff=color[3] = not used i have displayed most of the .qfs files using the above info and the graffic,s display perfectly. does anybody know what a "SHLB" is???? bye!! ============================================================================ Fixed mass number of gears (reverse + neutral + forward gears) gear shift delay (ticks) gear efficiency (array size 8) velocity to rpm ratio (array size 8) torque curve (array size 41) in 256rpm increments engine redline in rpm maximum velocity of car in m/s front drive ratio maximum braking deceleration front bias brake ratio gas increasing curve (array size 2) gas decreasing curve (array size 2) brake increasing curve (array size 2) brake decreasing curve (array size 2) wheel base front grip bias maximum steering acceleration turn in ramp turn out ramp lateral acceleration grip multiplier aerodynamic downforce multiplier gas off factor transfer factor Slide Multiplier Spin velocity cap Slide Velocity Cap Slide Assistance Factor Push Factor "Low Turn Factor (the lower the figure, the better the turn)" "High Turn Factor (the lower the figure, the better the turn)" Other Need For Speed 2 cheats hints faqs solutions: 1. 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