[3.3.3.11723] CGWorld_C::Intersect parameters?

[eLaps]

CGWorld_C::Intersect 's current prototype differs from the one I expected.
Previously known:

void (*)(Pos* end, Pos* start, Pos* result, float distance, uint32_t flags, uint32_t useless)

Current:

void (*)(Pos*, Pos*, Pos*, uint32_t*, float, uint32_t, uint32_t, uint32_t, uint32_t)

Calling it with dummy variables gives an invalid result.

Anyone have re-reversed it?

[MaiN]

It has not changed. Not in this version, not for a long time.
The 4th parameter is a float*. It's the hit segment along the ray. If you are passing a pointer to 0.0f, it will only complete 0% of the ray. Pass a pointer to 1.0f. When the method is done, the value will be the hit along the segment. That means:
Vector3 hitPos = start + (end - start) * t; where t is the value of the float*. Or simply use the result, which is calculated in that way as well.
Also, the first position passed is the start, not the end.

EDIT: This is the code that takes care of it inside the TraceLine function:
if ( hitPos )
{
_hitAlongSegment = *hitAlongSegment;
v10 = (end->x - start->x) * _hitAlongSegment + start->x;
v11 = (end->y - start->y) * _hitAlongSegment + start->y;
v12 = (end->z - start->z) * _hitAlongSegment + start->z;
hitPos->x = v10;
hitPos->y = v11;
hitPos->z = v12;
}

[eLaps]

Oh Im sorry, I was looking at the wrong function.
Sometimes we talk about Intersect and Traceline like they are the same function, or naming them wrong.
To make it clear, everyone is using Traceline and not Intersect, Intersect being called by Traceline.
+rep anyway for the explanations MaiN.

[MaiN]

No, TraceLine is being called by CGWorld_C::Intersect. CGWorld_C::Intersect is a complete wrapper for TraceLine. All CGWorld_C::Intersect does is to jump to TraceLine. They take the exact same parameters.

[eLaps]

Looking at Intersect with IDA:
int __cdecl sub_521E80(int,int,int,int,int,int,int,int,int);

That's why I was clueless.

[MaiN]

Looking at Intersect with IDA:
int __cdecl sub_521E80(int,int,int,int,int,int,int,int,int);

That's why I was clueless.

You are clueless because IDA magically did not guess all the parameters to a function?

EDIT: Oh, I see what you did wrong. 0x521E80 is part of TraceLine, it probably tests hits on non-game objects. It is not CGWorld_C::Intersects.