Function Vector4_unm

engine/script/src/script_vmath.cpp:548–553

    }

    static int Vector4_unm(lua_State *L)
    {
        Vector4* v = (Vector4*)lua_touserdata(L, 1);
        PushVector4(L, - *v);
        return 1;
    }

    static int Vector4_concat(lua_State *L)
    {