GMod13 Nospread source (C++)

int GetWeaponCone(lua_State* L)
{
    if (LUA->IsType(1, Type::USERCMD) && LUA->IsType(2, Type::ANGLE) && LUA->IsType(3, Type::VECTOR))
    {
        CUserCmd* cmd = GET(CUserCmd*, 1);

        uint uiSeed = MD5_PseudoRandom(cmd->command_number) & 0x7FFFFFFF;
        RandomSeed(uiSeed & 255);

        QAngle qAngs = *GET(QAngle*, 2);
        Vector* vSpread = GET(Vector*, 3);

        float x = RandomFloat(-0.5, 0.5) + RandomFloat(-0.5, 0.5);
        float y = RandomFloat(-0.5, 0.5) + RandomFloat(-0.5, 0.5);

        QAngle spreadAngles;
        Vector forward, right, up;

        AngleVectors(qAngs, &forward, &right, &up);

        Vector vecDir = forward + (x * vSpread->x * right) + (y * vSpread->y * up);
        VectorAngles(vecDir, spreadAngles);

        spreadAngles -= qAngs;

        ILuaInterface* gLua = new ILuaInterface(L);

        gLua->GetGlobal("Angle")->Push();
        gLua->Push(spreadAngles.x);
        gLua->Push(spreadAngles.y);
        gLua->Push(spreadAngles.z);
        gLua->Call(3, 1);
        gLua->Push(gLua->GetReturn(1));
    }

    return 1;
}