# How can I create a specific order of overlapping things to unlock sth.?

**URL:** <https://forums.unrealengine.com/t/how-can-i-create-a-specific-order-of-overlapping-things-to-unlock-sth/685323>\
**Category:** International\
**Tags:** event-graph, unreal-engine, question\
**Created:** [November 6, 2022, 8:44pm UTC](https://forums.unrealengine.com/t/how-can-i-create-a-specific-order-of-overlapping-things-to-unlock-sth/685323 "2022-11-06T20:44:31Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![LeaKlingelfuss](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@LeaKlingelfuss](https://forums.unrealengine.com/u/LeaKlingelfuss)\
**Post date:** [November 6, 2022, 8:44pm UTC](https://forums.unrealengine.com/t/how-can-i-create-a-specific-order-of-overlapping-things-to-unlock-sth/685323/1 "2022-11-06T20:44:31Z")

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Hi, I just started with Unreal and I’m pretty unexperienced, but I have to edit an escape room and I wanted to do one room were they have to step on four different planes on the floor in a specific order to unlock the room, I tried to do an event graph but I got completely lost, maybe somebody can help me.

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**Author:** ![ClockworkOcean](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/clockworkocean/32/1169999_2.png) [@ClockworkOcean](https://forums.unrealengine.com/u/ClockworkOcean)\
**Post date:** [November 6, 2022, 8:50pm UTC](https://forums.unrealengine.com/t/how-can-i-create-a-specific-order-of-overlapping-things-to-unlock-sth/685323/2 "2022-11-06T20:50:39Z")

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Give the floor tiles an actor tag, which is just an int. 0 - 3.

When the player steps on a tile, append the tags into a string ( only keep most recent 4 ).

When the string is 0123, let them out 🙂

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**Author:** ![gloglo23333](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@gloglo23333](https://forums.unrealengine.com/u/gloglo23333)\
**Post date:** [July 9, 2024, 12:24am UTC](https://forums.unrealengine.com/t/how-can-i-create-a-specific-order-of-overlapping-things-to-unlock-sth/685323/3 "2024-07-09T00:24:28Z")

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Is that possible to give a blueprint version explanation since I have quite a similar question and am still confused about how to make it …(

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**Author:** ![ClockworkOcean](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/clockworkocean/32/1169999_2.png) [@ClockworkOcean](https://forums.unrealengine.com/u/ClockworkOcean)\
**Post date:** [July 9, 2024, 3:27pm UTC](https://forums.unrealengine.com/t/how-can-i-create-a-specific-order-of-overlapping-things-to-unlock-sth/685323/4 "2024-07-09T15:27:21Z")

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This is the same concept

[![](https://d3kjluh73b9h9o.cloudfront.net/original/4X/b/d/a/bda300b1a9f9a5081ae57411cb603c41cf02eeec.jpeg "UE5 Pressure Plate Puzzle") ](https://www.youtube.com/watch?v=HFarVFT6KgA)