Help with GUI mouse picking

[pspeed]

Using Lemur to easily do picking on any JME Spatial, whether 2D or 3D:

Lemur Gems #3 : Scene picking

Lemur has a robust picking subsystem that uses JME’s standard ray collision code. In this Lemur Gem, I add simple mouse picking to the app already built in Lemur Gem #1 and Lemur Gem #2 When you initialize Lemur’s GuiGlobals, it automatically adds the MouseAppState that does scene picking. It also adds the guiNode and rootNode to the pickable scene roots automatically. This demo uses that automatic setup. It is also possible to use the MouseAppState without the rest of Lemur but for simplic…

See the full Lemur site/repo here:

GitHub - jMonkeyEngine-Contributions/Lemur: Lemur is a jMonkeyEngine-based UI...

Inculding the “Getting Started” page if you want to dive in deeper:

Getting Started

You don’t have to use the UI portions of Lemur to get the scene picking… just call one initialize method and then add listeners to the spatials you want. Though you can also easily create buttons with images if that’s easier for you… and then place them wherever you want.