Difference between revisions of "Modding Whiplash/Fatal Racing"

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====Surface type bit flags====
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|Least significant bit||31||||||||||||||24||||||||||||||||16||||||||||||||||8||||||||||||||||0
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|Surface type 2||||||||||||||Pit||||||||||||||||||||||||||||||||||||||||||||||||||
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* Grip
 
* Grip

Revision as of 02:56, 11 March 2024

TRK file structure

Definition

Geometry length
int		 0 0 int
Empty line
Empty line
Geometry
Tuples?
Empty line
Stunts
Empty line
Textures
Empty line
Race info
Empty line

Geometry

Track geometry.

Left shoulder width
int 		Left lane width
int 		Right lane width
int 		Right shoulder width
int
int
int
int 		Yaw rotation, clockwise (°)
float 		Pitch rotation, upwards (°)
float 		Roll rotation, clockwise (°)
float
int
int
int
int 		Track grip
int
int 		Banking grip
int
int
int
int
int
int
Surface type?
int 		Surface type?
int 		Surface type?
int
int
int
int
int
int
int
int
int
int
int
int
int
float
float
float

int
int
int
int
int
int
int
int
int
int
int
int
int
int
int
int
int
int
int
int
int
int
int
int
int
int
int
int
int
int
Empty line
...

Surface type bit flags

Least significant bit 31 24 16 8 0
Surface type 1
Surface type 2 Pit
Surface type 3
  • Grip
    • 0: full grip
    • 12: ice
  • Surface type?
    • 524703 590082 590082 appears to define a moving ramp or at least a surface the car can fly off of vertically

Tuples?

Empty on some tracks.

index?
int
int
...
-1 -1

Stunts

Controls geometry that moves and potrudes. Empty on some tracks.

Geometry index (reversed from file order)
int 		Scale factor?
int 		Angle?
int 		?
int 		Timing group
int 		Height
int 		Time bulging
int 		Time flat
int 		Smaller expands/larger contracts?
int 		Bulge?
int
...
-1
  • Scale factor?
    • Increases the length and height of the "ramp"
    • 1 is a bump, 4 starts breaking textures, 6 is huge vertical wall
  • Angle?
    • Lower is flatter, higher becomes trapezoid with longer top
  •  ?
    • No clue
  • Timing group
    • With otherwise identical config, two bumps with same number move together, with 1 and 2 move oppositely

Textures

Texture file
TEX:<DRH file>
Building texture file
BLD:<DRH file>
BACKS:

int
int
...
-1

Race info

Not present on some tracks.

Track number
int
Impossible laps
int		 Hard laps
int		 Tricky laps
int		 Medium laps
int		 Easy laps
int		 Girlie laps
int
Track map size, smaller is larger
float		 Track map fidelity, smaller is more accurate
int
float

Effects

Bonus 7

  • Swapping yaw and pitch: loop
  • Swapping yaw and roll: twisting line
  • Swapping yaw and pitch, roll 90.00000: vertical ring to the left
  • Negative yaw: turnright
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