GetHitboxCenter

local function GetHitboxCenter( ent, hitbox )
    local bpos, bang = ent:GetBonePosition( ent:GetHitBoxBone( hitbox, 0 ) );
    local mins, maxs = ent:GetHitBoxBounds( hitbox, 0 );
    local matrix = {
        [0] = Vector( 0, 0, 0 ),
        [1] = Vector( 0, 0, 0 ),
        [2] = Vector( 0, 0, 0 ),
    };
    AngleMatrix( bang, matrix );
    local rmins, rmaxs = Vector( 0, 0, 0 ), Vector( 0, 0, 0 );
    RotateVector( mins, matrix, rmins );
    RotateVector( maxs, matrix, rmaxs );
    return bpos + ( ( rmins + rmaxs ) / 2 );
end