How do I add a gesture to an entity?

To add a gesture to an entity in visionOS, you can follow these steps:

1. Ensure the Entity is Tappable: Any entities you want to be tappable need to have an input target component and a collision component.

2. Attach a Gesture to the Reality View: Attach the desired gesture to the reality view that contains your entities. This will make any entity within that view tappable.

3. Respond to the Gesture: Once the gesture is detected, you can respond to it in the gesture's handlers.

Here's a code snippet to illustrate this process:

// Ensure the entity has an input target and collision component
entity.components[InputTargetComponent.self] = InputTargetComponent()
entity.components[CollisionComponent.self] = CollisionComponent()

// Attach a tap gesture to the reality view
let tapGesture = TapGesture()
realityView.addGestureRecognizer(tapGesture)

// Handle the tap gesture
tapGesture.addTarget(self, action: #selector(handleTap(_:)))

@objc func handleTap(_ gesture: TapGesture) {
    if let entity = gesture.entity {
        // Respond to the tap gesture on the entity
        // For example, trigger an animation or change the entity's state
    }
}

For more detailed information, you can refer to the session Explore game input in visionOS.

Relevant Sessions

• Explore game input in visionOS
• Compose interactive 3D content in Reality Composer Pro