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engine: client: fix up origin of MOVETYPE_FOLLOW entities immediately after entity update

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This fixes an issue when MOVETYPE_FOLLOW entities seem to be "blinking".

Explanation of what's happening is in the comment in the code.
This commit is contained in:
Alibek Omarov
2026-01-09 18:50:22 +05:00
parent 0976d96419
commit a4e5cf8bac
1 changed files with 15 additions and 0 deletions
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15
engine/client/cl_frame.c
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@@ -311,6 +311,21 @@ static void CL_ProcessEntityUpdate( cl_entity_t *ent )
if( FBitSet( ent->curstate.entityType, ENTITY_NORMAL ))
COM_NormalizeAngles( ent->curstate.angles );
// a1ba: follow entities are sent with null origin, grab their aiment origin here
//
// null origin leads to triggered entity teleport check and subsequent reset of position history
// and empty position history doesn't allow entity to render correctly
//
// it's probably should be done somewhere else, as goldsrc doesn't do this here
// it has MoveAiments function but it's called after LinkPacketEntities :shrug:
if( ent->curstate.movetype == MOVETYPE_FOLLOW && VectorIsNull( ent->curstate.origin ) && ent->curstate.aiment )
{
cl_entity_t *aiment = CL_GetEntityByIndex( ent->curstate.aiment );
if( aiment )
VectorCopy( aiment->origin, ent->curstate.origin );
}
parametric = ent->curstate.starttime != 0.0f && ent->curstate.impacttime != 0.0f;
// allow interpolation on bmodels too