# Game Studio Tap to place world ar

**URL:** <https://forum.8thwall.com/t/game-studio-tap-to-place-world-ar/3960>\
**Category:** Technical Support\
**Created:** [December 12, 2024, 4:55pm UTC](https://forum.8thwall.com/t/game-studio-tap-to-place-world-ar/3960 "2024-12-12T16:55:54Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![marcelo\_huanchicay](https://avatars.discourse-cdn.com/v4/letter/m/ba8739/32.png) [@marcelo\_huanchicay](https://forum.8thwall.com/u/marcelo_huanchicay)\
**Post date:** [December 12, 2024, 4:55pm UTC](https://forum.8thwall.com/t/game-studio-tap-to-place-world-ar/3960/1 "2024-12-12T16:55:54Z")

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Hola una consulta, cómo hacer en game studio para que antes de ubicar un objeto ar world, primero aparezca un mensaje para el usuario del tipo “tap to place” en este ejemplo? [Studio: Splats | 8th Wall | 8th Wall](https://www.8thwall.com/8thwall/splats).  
Saludos.

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**Author:** ![GeorgeButler](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.8thwall.com/georgebutler/32/1903_2.png) [@GeorgeButler](https://forum.8thwall.com/u/GeorgeButler)\
**Post date:** [December 12, 2024, 5:05pm UTC](https://forum.8thwall.com/t/game-studio-tap-to-place-world-ar/3960/2 "2024-12-12T17:05:42Z")

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Hi, welcome to the forums!

To add a “tap to place” welcome message, I recommend creating a custom component and using a state machine to manage the logic. Here’s an example of how the state machine could work:

**State 1: “Waiting” (Initial)**

Set up event listeners for the `ecs.input.SCREEN_TOUCH_STARTED` event. When this event is triggered, transition to the “Placed” state.

**State 2: “Placed”**

Upon entering this state, create the entity and apply the necessary components (e.g., door mesh, splat, etc.).

[https://www.8thwall.com/docs/studio/guides/components/create-component/](https://www.8thwall.com/docs/studio/guides/components/create-component/)

[https://www.8thwall.com/docs/studio/guides/state-machine/](https://www.8thwall.com/docs/studio/guides/state-machine/)

> **[Input Events | 8th Wall](https://www.8thwall.com/docs/api/studio/events/input/#screen_touch_start)**
>
> Description

I hope this helps! I’ll see about putting together a sample project to demonstrate this approach.

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**Author:** ![marcelo\_huanchicay](https://avatars.discourse-cdn.com/v4/letter/m/ba8739/32.png) [@marcelo\_huanchicay](https://forum.8thwall.com/u/marcelo_huanchicay)\
**Post date:** [December 12, 2024, 5:15pm UTC](https://forum.8thwall.com/t/game-studio-tap-to-place-world-ar/3960/3 "2024-12-12T17:15:51Z")

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Do you have a sample?, I am not an expert please

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**Author:** ![marcelo\_huanchicay](https://avatars.discourse-cdn.com/v4/letter/m/ba8739/32.png) [@marcelo\_huanchicay](https://forum.8thwall.com/u/marcelo_huanchicay)\
**Post date:** [December 17, 2024, 12:17am UTC](https://forum.8thwall.com/t/game-studio-tap-to-place-world-ar/3960/4 "2024-12-17T00:17:23Z")

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Do you have a sample?, I am not an expert please

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**Author:** ![GeorgeButler](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.8thwall.com/georgebutler/32/1903_2.png) [@GeorgeButler](https://forum.8thwall.com/u/GeorgeButler)\
**Post date:** [December 17, 2024, 5:27pm UTC](https://forum.8thwall.com/t/game-studio-tap-to-place-world-ar/3960/5 "2024-12-17T17:27:49Z")

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Check out the clone-able sample I created here:

> **[Door Portal with Intro Message | George Butler | 8th Wall](https://www.8thwall.com/georgebutler/intro-message)**
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> Door Portal with Intro Message by George Butler

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**Author:** ![marcelo\_huanchicay](https://avatars.discourse-cdn.com/v4/letter/m/ba8739/32.png) [@marcelo\_huanchicay](https://forum.8thwall.com/u/marcelo_huanchicay)\
**Post date:** [December 19, 2024, 1:17pm UTC](https://forum.8thwall.com/t/game-studio-tap-to-place-world-ar/3960/6 "2024-12-19T13:17:00Z")

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mmm, la idea del “tap to place” es tener control sobre donde ubicar la puerta en el plano horizontal, ¿es posible tener ese control en Game Studio?, el ejemplo que has compartido no lo resuelve.  
✌ 🧔🏽Saludos.

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**Author:** ![GeorgeButler](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.8thwall.com/georgebutler/32/1903_2.png) [@GeorgeButler](https://forum.8thwall.com/u/GeorgeButler)\
**Post date:** [December 19, 2024, 4:44pm UTC](https://forum.8thwall.com/t/game-studio-tap-to-place-world-ar/3960/7 "2024-12-19T16:44:28Z")

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The sample doesn’t have it but using the sample you can easily take the code from our World Effects project and replace the current code inside of the `state-machine`.

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**Author:** ![marcelo\_huanchicay](https://avatars.discourse-cdn.com/v4/letter/m/ba8739/32.png) [@marcelo\_huanchicay](https://forum.8thwall.com/u/marcelo_huanchicay)\
**Post date:** [December 27, 2024, 2:52pm UTC](https://forum.8thwall.com/t/game-studio-tap-to-place-world-ar/3960/8 "2024-12-27T14:52:24Z")

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buenooo…siii, es como una ayuda sin ser ayuda…en fin…gracias por el intento.

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**Author:** ![system](https://us1.discourse-cdn.com/flex019/uploads/x8thwall/original/2X/9/9212a857458f1b03a6accb129e0f8cbea408e3e5.png) [@system](https://forum.8thwall.com/u/system)\
**Post date:** [August 21, 2025, 10:55pm UTC](https://forum.8thwall.com/t/game-studio-tap-to-place-world-ar/3960/9 "2025-08-21T22:55:36Z")

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