CULL

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CULL (IPL section)
Supported games:GTA III GTA Vice City GTA San Andreas GTA IV
Short description:Creates zones with attributes
IPL Sections:
AUZO CARS CULL ENEX GRGE INST
JUMP MULT OCCL PATH PICK TCYC

cull is a section in the item placement file in Grand Theft Auto III, Grand Theft Auto: Vice City, Grand Theft Auto: San Andreas, and Grand Theft Auto IV. It is used to create zones affecting the different behavior of the world, like mirrors,[1] fixed camera positions, disabling rain, and police behaviors, when the player is within the zone.

Format

GTA III and GTA Vice City

Cull zones in GTA III and GTA Vice City are built by a box which is controlled by various attributes. By default, most of the cull zones are located in \data\maps\cull.ipl for both games, although GTA III doesn't seem to use this file. Instead it uses the cullzone.dat file to define these zones.

cull
CenterX, CenterY, CenterZ, X1, Y1, Z1, X2, Y2, Z2, Attribute, WantedLevelDrop
end
GTA III GTA Vice City Identifier Type Description
A,B,C CenterX, CenterY, CenterZ float[3] A point which defines the center of the box in real world coordinates.
D,E,F X1, Y1, Z1 float[3] A point which corresponds to the corner of the box, usually the lower left.
G,H,I X2, Y2, Z2 float[3] A point which corresponds to the opposite corner of the box, usually the upper right.
J Attribute integer The attribute in flag field representation (see below).
K WantedLevelDrop integer Usually 0

Changing the zones center coordinates does not directly affect the zone itself. Anyway this vector should always point to the real center of the zone since those values are used to calculate the distance of several instances (e.g. the player) to the zone itself.

GTA San Andreas / IV

GTA San Andreas has two different major formats in the game:

CenterX, CenterY, CenterZ, Unknown1, Length, Bottom, Width, Unknown2, Top, Flag, Unknown3
CenterX, CenterY, CenterZ, Unknown1, Length, Bottom, Width, Unknown2, Top, Flag, Vx, Vy, Vz, Cm

Coordinates are always rounded to the nearest world unit so that they are no longer floating point values, they are non-decimal integers.

Value Description
CenterX, CenterY, CenterZ Vector to the center of the cull zone.
Unknown1, Unknown2, Unknown3 Allways 0.
Length Dimensions of the zone along y-axis.
Width Dimensions of the zone along x-axis.
Top, Bottom Absolute Z coordinate of the top and bottom of the box.
Flag The behaviour of the cull zone (see below).
Vx, Vy, Vz, Cm Mirror parameters.[2]

Attributes

Flag Function name Supported games Binary Description
Player
Camera
-1   1111 1111 1111 1111 Enables all attributes. Never used by default.
 
1 CamCloseInForPlayer GTA III GTA Vice City GTA San Andreas GTA IV 0000 0000 0000 0001 Camera close in into player using closest third-person view camera mode, does not close in if in first person or cinematic mode, camera mode cannot be changed while in the zone
 
2 CamStairsForPlayer GTA III GTA Vice City GTA San Andreas GTA IV 0000 0000 0000 0010 Camera remotely placed outside the zone, no control of camera, camera mode cannot be changed while in the zone
 
4 Cam1stPersonForPlayer GTA III GTA Vice City GTA San Andreas GTA IV 0000 0000 0000 0100 Lowers the camera angle on boats
 
8 PlayerNoRain GTA III GTA Vice City GTA San Andreas GTA IV 0000 0000 0000 1000 Rain-free, police helicopter-free zone
CamNoRain
16 NoPolice GTA III GTA Vice City 0000 0000 0001 0000 Police will not exit their vehicles voluntarily. They will only exit if you do something to them (like shoot it). Cops both on foot and in vehicles will not chase you but can shoot at you.
 
64 DoINeedToLoadCollision GTA III 0000 0000 0100 0000 Unused in Vice City
 
128   GTA III GTA Vice City 0000 0000 1000 0000
 
256 PoliceAbandonCars GTA III GTA Vice City GTA San Andreas 0000 0001 0000 0000 Police will always exit their vehicles once they are spawned ONLY IF you have a wanted level. If you don't, they'll drive normally.
 
512   GTA Vice City GTA San Andreas 0000 0010 0000 0000
InRoomForAudio
1024   GTA Vice City 0000 0100 0000 0000 Some visual ocean water effects are removed like the transparent waves and sparkles on the water
WaterFudge
4096   GTA San Andreas GTA IV 0001 0000 0000 0000 5-Star Military zone.
MilitaryZone
16384   GTA San Andreas 0100 0000 0000 0000 Doesn't allow cars to reach top speed.
ExtraAirResistance
32768   GTA San Andreas 1000 0000 0000 0000 Spawn fewer cars in this area.
FewerCars

References

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