{"schemaVersion":1,"record":{"key":"mechanic/phone-flashlight--family-world","type":"mechanic","id":"phone-flashlight--family-world","lang":"en","title":"Changing the game world","summary":"Design scenario: switching the LED also changes a virtual scene. phyphox illustrates the physical light channel; game-world changes need separate rules.","updatedAt":"2026-10-22","status":"active","url":"https://gamemechanics.pro/en/knowledge/mechanic/phone-flashlight--family-world/","jsonUrl":"https://gamemechanics.pro/api/v1/knowledge/en/mechanic/phone-flashlight--family-world.json","markdownUrl":"https://gamemechanics.pro/content/knowledge/en/mechanic/phone-flashlight--family-world.md","aliases":[],"tags":["Phone flashlight interactions","Mechanics catalog"],"sourceIds":["source-bdbe910fe2426deb"],"sources":[{"id":"source-bdbe910fe2426deb","title":"phyphox","url":"https://apps.apple.com/us/app/phyphox/id1127319693?uo=4","verifiedAt":null}],"sections":[{"id":"principle","title":"How it works","body":"All effects in this section are software; LED links the action on the screen to the feeling of light in the room."},{"id":"variants","title":"Variants","body":"### Variants and applications\n\n<a id=\"family-world-variants\"></a>\n\n- Revealing the hidden. Action: Light makes the virtual layer of information visible. Application: Secret platforms, inscriptions, additional map. Requirements: Rear LED and control from the application; Software game rule. Conditions: Objects exist in the game or AR; real LED does not create a new layer of the object. <a id=\"variant-61\"></a>\n- Charging an object. Action: Accumulate progress while the light is on or aimed at the target. Application: Charge the beacon, open the door, revive the mechanism. Requirements: Rear LED and control from the application; Software game rule. Conditions: This is virtual energy; The real battery of the device is not charged from the flashlight. <a id=\"variant-62\"></a>\n- Destruction by light. Action: Reduce the strength of an object under prolonged illumination. Application: Remove virtual mold, destroy the dark shell. Requirements: Rear LED and control from the application; Software game rule. Conditions: No physical destruction is implied by conventional LED. <a id=\"variant-63\"></a>\n- Restoration with light. Action: Restore the health or condition of a game entity. Application: Heal an ally, return color to the world, repair a virtual object. Requirements: Rear LED and control from the application; Software game rule. Conditions: Treatment applies only to the gaming system. <a id=\"variant-64\"></a>\n- Growth and development. Action: Lighting promotes the virtual plant or creature to the next stage. Application: Puzzle garden, bridge growing, creature care. Requirements: Back LED and app control; Software game rule. Conditions: The flashlight does not reproduce the actual growth periods of plants using this rule. <a id=\"variant-65\"></a>\n- Stopping movement. Action: Hold the target motionless while it is illuminated. Application: Freeze the enemy, stop the mechanism, hold the door. Requirements: Rear LED and app control; Software game rule. Conditions: If the actual target is important, an additional camera or tag is needed. <a id=\"variant-66\"></a>\n- Starting the movement. Action: The illuminated object begins to move or work. Application: Start the elevator, wake up the robot, turn on the conveyor. Requirements: Rear LED and control from the application; Software game rule. Conditions: Real props need a photosensor or other control channel. <a id=\"variant-67\"></a>\n- Change of state. Action: Translate an object between shapes or modes with light. Application: Solid/transparent, open/closed, ally/enemy. Requirements: Rear LED and app control; Software game rule. Conditions: The rule can be tied to turning on the LED without measuring the actual spot. <a id=\"variant-68\"></a>\n- Creating a route. Action: Lighting temporarily makes the area passable. Application: Bridge of light, manifested staircase, path for a companion. Requirements: Rear LED and control from the application; Software game rule. Conditions: We are talking about virtual geometry; a physical room does not automatically become a safe route. <a id=\"variant-69\"></a>\n- Logic \"AND/OR/NOT\". Action: Combine the illumination of several game targets. Application: The door is open with two active beacons and one extinguished. Requirements: Rear LED and control from the application; Software game rule; Multiple devices/participants; sometimes an observer is enough. Conditions: For real simultaneous purposes, receivers are needed; game logic can be read over the network. <a id=\"variant-70\"></a>"},{"id":"context","title":"Context and limits","body":"Author's working classification for designing games and interactions. Options can overlap and combine; the list is not a generally accepted standard or proven exhaustive list. Application examples are conditional unless a specific verifiable observation is indicated nearby. Sources support individual techniques and technical limitations."}],"relations":[],"placements":[{"catalogId":"phone-flashlight","id":"family-world","title":"Phone flashlight interactions","url":"https://gamemechanics.pro/en/mechanics/phone-flashlight/#family-world","categoryIds":["section-1"]}],"supersededBy":[],"attributes":{"preview":{"updatedAt":"2026-10-22","title":"Changing the game world","description":"Design scenario: switching the LED also changes a virtual scene. phyphox illustrates the physical light channel; game-world changes need separate rules.","image":{"src":"images/mechanics/sensor-phyphox-4.webp","width":663,"height":1440,"crop":{"x":0,"y":92,"width":663,"height":970},"game":"phyphox","sourceUrl":"https://apps.apple.com/us/app/phyphox/id1127319693?uo=4","originalUrl":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/3e/83/1f/3e831fc9-b4dc-57f8-fad4-b2fd5cd5243c/iphone-05-strobe.png/720x1560bb.jpg","credit":"RWTH Aachen University","rights":"© RWTH Aachen University. Developer-distributed App Store screenshot. All rights reserved; excluded from MIT and CC BY 4.0.","caption":"phyphox: LED brightness, frequency and pulse duration","alt":"phyphox: LED brightness, frequency and pulse duration","markers":[{"x":64,"y":16,"label":"Brightness and frequency control the phone’s physical flashlight"}]},"tips":["Clearly link the light command to the scene change and handle an unavailable LED."],"examples":[{"title":"phyphox","url":"https://apps.apple.com/us/app/phyphox/id1127319693?uo=4"}]}},"endsAt":null,"provenance":"Original editorial design catalog consolidated from project discussions on 2026-10-20. Complete discussion item lists and contextual limitations are preserved; linked primary sources support specific techniques, not the entire classification. English translation was prepared with machine assistance and editorial review.","license":"CC-BY-4.0","codeLicense":"MIT","attribution":"gamemechanics.pro contributors","catalogKey":"catalog/phone-flashlight"}}