BSP (File Format)
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BSP is a file format that contains vehicle collision data. BSP files are found in the bsp directory in /Race/Common.szs.
File Format
Offset | Type | Description |
---|---|---|
0x00 | f32 | Initial y position. If a collision is found, the normal to the floor multiplied by this value is added to the position from the KMP. |
0x04 | hitbox[16] | An array of 16 hitboxes. |
0x184 | vec3 | First cuboid dimensions for the inertia tensor, with mass 1. |
0x190 | vec3 | Second cuboid dimensions for the inertia tensor, with mass 12. |
0x19c | f32 | A value that also affects rotation speed. |
0x1a0 | f32 | Unknown. |
0x1a4 | wheel | For bikes, the front wheel. For karts, the front right wheel. |
0x1d0 | wheel | For bikes, the back wheel. For karts, the back right wheel. |
0x1fc | wheel[2] | Unused. For karts, the game reuses the two previous definitions with a negated x position. |
0x254 | f32 | Unknown. |
0x258 | f32 | Unknown. |
0x25c | End of file. |
Offset | Type | Description |
---|---|---|
0x00 | u16 | Enable. |
0x02 | u16 | Padding. |
0x04 | vec3 | Sphere center position. |
0x10 | f32 | Sphere radius. |
0x14 | u32 | Unknown. |
0x18 | End of substructure. |
Offset | Type | Description |
---|---|---|
0x00 | u16 | Enable. |
0x02 | u16 | Padding. |
0x04 | f32 | Suspension factor that multiplies the distance between the current position and the bottommost position. |
0x08 | f32 | Suspension factor that multiplies the wheel speed on the vertical axis. |
0x0c | f32 | Distance between the topmost and the bottommost wheel positions. |
0x10 | vec3 | Wheel center position. For bikes' front wheel, this is relative to the handle position and rotation from bikePartsDispParam.bin. |
0x1c | f32 | Wheel x rotation. Always zero. |
0x20 | f32 | Wheel radius. |
0x24 | f32 | Sphere radius used for collision detection. The difference between this value and the previous one is added to the wheel center to get the sphere center. 43 most of the time. |
0x28 | u32 | Unknown. |
0x2c | End of substructure. |