don't filter dragged entity out of DragEnter events

[tomara-x]

produce a DragEnter event when reentering the dragged entity

when making a piano, i want dragging across the keys to trigger the notes of each key, but currently if i drag out of a key, then back to it, this will not work since the dragged entity gets filtered out

Solution

• make DragEnter event work whenever there's an entry. if the user wants to ignore the dragged entity they can compare target and dragged

Testing

• tested this with a modified version of the 2d_shapes example. i added an observer to the entities: (and added mesh picking plugin)

.observe(|t: Trigger<Pointer<DragEnter>>| {
    info!("entered {}, started from {}", t.target(), t.dragged);
}

• i'm not sure if other things need more testing, or if this is wrong completely and breaks other things i don't know of!

---

Showcase

before:

2025-05-12_04-19-42.mp4

after:

2025-05-12_04-22-28.mp4

[github-actions]

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