thx but it didnt work it stays -1


more infi from manaul >><<

c_trace(VECTOR* from, VECTOR* to, var mode)
Sends a ray from the from position to the to position and checks whether this ray hits an obstacle on its way. This is the general instruction that is used by entities to detect their environment.
Parameters:
from Start position vector
to Target position vector
mode Tracing mode, see below

The following mode flags can be combined:
GET_HITVERTEX When a model is hit, the number of the hit vertex will be returned in the hitvertex variable. Mutually exclusive with USE_AABB.

Modifies:
hitvertex The hit object's closest vertex number, when mode is set to GET_HITVERTEX.