On 23 April 2014 22:50, Sze Howe Koh <[email protected]> wrote: > Hi Marius, > > On 23 April 2014 20:14, cincirin <[email protected]> wrote: >> Sorry for re-open this topic, but as someone else already pointed out, >> what do you think about the Unreal engine guys to abandon the unreal >> script which was used until now for many years ? >> To quote some comments: >> "In the past, gameplay code existed in UnrealScript. UnrealScript is the >> scripting language which forms the core of current community mods, and >> much of the gameplay code of all previous Unreal Engine titles. >> However, UnrealScript is being removed. >> In its place, the engine will be 100% C++, and highly optimized." > > I think UnrealScript and QML have different use cases. > > UnrealScript was for _all_ the code: GUI and core logic. The article > says it was replaced because C++ gives better logic performance. I > think that makes sense, because games need to run complex code.
I just read http://gameindustry.about.com/od/trends/a/Unreal-Engine-4-First-Look.htm in more detail. Another big benefit they described is: "Programmers can click on a property and edit the C++ code directly, with no rebuild time required." QML offers this for GUIs. No need to compile, just edit your .qml file and restart your app. > With QML, the general idea is to use QML for the GUI and use C++ for core > logic. > > Also, UnrealScript and C++ are imperative languages which are > well-suited for writing instructions. QML is a declarative language > (like HTML/CSS), which is well-suited for writing GUIs. It's a good > idea to choose the best tool for any job. > > >> Also I'm curios why Android xml files are good for design the UI, but >> "old" QtDesigner ui (xml) files seems to be deprecated in favor of qml. > > Which of the following do you prefer? > > //================================================ > // Android XML > // http://developer.android.com/guide/topics/ui/declaring-layout.html > //================================================ > > <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"; > android:layout_width="fill_parent" > android:layout_height="fill_parent" > android:orientation="vertical" > > <TextView android:id="@+id/text" > android:layout_width="wrap_content" > android:layout_height="wrap_content" > android:text="I am a TextView" /> > <Button android:id="@+id/button" > android:layout_width="wrap_content" > android:layout_height="wrap_content" > android:text="I am a Button" /> > </LinearLayout> > > //================================================ > // QML > // Don't need "wrap_content", because it's default behaviour > //================================================ > > ColumnLayout { > anchors.fill: parent > TextEdit { > id: textEdit > text: "I am a TextEdit" > } > Button { > id: button > text: "I am a Button" > } > } > > >> Best regards, >> Marius > > Regards, > Sze-Howe _______________________________________________ Development mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/development
