In view cone snippet: Difference between revisions
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Revision as of 13:57, 15 June 2008
bool CMyEnt::InViewCone( const Vector &vecSpot, float tolerance )
{
Vector los = ( vecSpot - GetAbsOrigin() );
los.z = 0;
VectorNormalize( los );
Vector facingDir;
AngleVectors( GetAbsAngles(), &facingDir );
float flDot = DotProduct( los, facingDir );
if ( flDot > tolerance )
return true;
return false;
}